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u-boot/drivers/mmc/sdhci.c

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
// SPDX-License-Identifier: GPL-2.0+
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
/*
* Copyright 2011, Marvell Semiconductor Inc.
* Lei Wen <leiwen@marvell.com>
*
* Back ported to the 8xx platform (from the 8260 platform) by
* Murray.Jensen@cmst.csiro.au, 27-Jan-01.
*/
#include <common.h>
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
#include <errno.h>
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
#include <malloc.h>
#include <mmc.h>
#include <sdhci.h>
mmc: sdhci.c: Add config option to use a fixed buffer for transfers While implementing SDIO/MMC SPL booting for the Marvell Armada 38x, the following problem occured. The SPL runs in internal SRAM which is the L2 cache locked to memory. When the MMC buffers now are located on the stack (or bss), the SDIO controller (SDHCI) can't write into this L2 cache memory. This patch introduces a method to use a fixed buffer that will be used for all transfers by defining CONFIG_FIXED_SDHCI_ALIGNED_BUFFER. This way, the board can use this buffer address located in SDRAM for all transfers. This solves this SPL problem on the A38x and should only be used in the SPL U-Boot version. Tested for SPL booting on Marvell Armada 38x DB-88F6820-GP board. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-06-29 12:58:09 +00:00
#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER)
void *aligned_buffer = (void *)CONFIG_FIXED_SDHCI_ALIGNED_BUFFER;
#else
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
void *aligned_buffer;
mmc: sdhci.c: Add config option to use a fixed buffer for transfers While implementing SDIO/MMC SPL booting for the Marvell Armada 38x, the following problem occured. The SPL runs in internal SRAM which is the L2 cache locked to memory. When the MMC buffers now are located on the stack (or bss), the SDIO controller (SDHCI) can't write into this L2 cache memory. This patch introduces a method to use a fixed buffer that will be used for all transfers by defining CONFIG_FIXED_SDHCI_ALIGNED_BUFFER. This way, the board can use this buffer address located in SDRAM for all transfers. This solves this SPL problem on the A38x and should only be used in the SPL U-Boot version. Tested for SPL booting on Marvell Armada 38x DB-88F6820-GP board. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-06-29 12:58:09 +00:00
#endif
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
static void sdhci_reset(struct sdhci_host *host, u8 mask)
{
unsigned long timeout;
/* Wait max 100 ms */
timeout = 100;
sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET);
while (sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask) {
if (timeout == 0) {
mmc: Minor cleanup of sdhci.c Fixup prints to show where the print is done from, and a few minor formatting/grammar issues. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-12-19 23:13:25 +00:00
printf("%s: Reset 0x%x never completed.\n",
__func__, (int)mask);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
return;
}
timeout--;
udelay(1000);
}
}
static void sdhci_cmd_done(struct sdhci_host *host, struct mmc_cmd *cmd)
{
int i;
if (cmd->resp_type & MMC_RSP_136) {
/* CRC is stripped so we need to do some shifting. */
for (i = 0; i < 4; i++) {
cmd->response[i] = sdhci_readl(host,
SDHCI_RESPONSE + (3-i)*4) << 8;
if (i != 3)
cmd->response[i] |= sdhci_readb(host,
SDHCI_RESPONSE + (3-i)*4-1);
}
} else {
cmd->response[0] = sdhci_readl(host, SDHCI_RESPONSE);
}
}
static void sdhci_transfer_pio(struct sdhci_host *host, struct mmc_data *data)
{
int i;
char *offs;
for (i = 0; i < data->blocksize; i += 4) {
offs = data->dest + i;
if (data->flags == MMC_DATA_READ)
*(u32 *)offs = sdhci_readl(host, SDHCI_BUFFER);
else
sdhci_writel(host, *(u32 *)offs, SDHCI_BUFFER);
}
}
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
static void sdhci_adma_desc(struct sdhci_host *host, char *buf, u16 len,
bool end)
{
struct sdhci_adma_desc *desc;
u8 attr;
desc = &host->adma_desc_table[host->desc_slot];
attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA;
if (!end)
host->desc_slot++;
else
attr |= ADMA_DESC_ATTR_END;
desc->attr = attr;
desc->len = len;
desc->reserved = 0;
desc->addr_lo = (dma_addr_t)buf;
#ifdef CONFIG_DMA_ADDR_T_64BIT
desc->addr_hi = (u64)buf >> 32;
#endif
}
static void sdhci_prepare_adma_table(struct sdhci_host *host,
struct mmc_data *data)
{
uint trans_bytes = data->blocksize * data->blocks;
uint desc_count = DIV_ROUND_UP(trans_bytes, ADMA_MAX_LEN);
int i = desc_count;
char *buf;
host->desc_slot = 0;
if (data->flags & MMC_DATA_READ)
buf = data->dest;
else
buf = (char *)data->src;
while (--i) {
sdhci_adma_desc(host, buf, ADMA_MAX_LEN, false);
buf += ADMA_MAX_LEN;
trans_bytes -= ADMA_MAX_LEN;
}
sdhci_adma_desc(host, buf, trans_bytes, true);
flush_cache((dma_addr_t)host->adma_desc_table,
ROUND(desc_count * sizeof(struct sdhci_adma_desc),
ARCH_DMA_MINALIGN));
}
#elif defined(CONFIG_MMC_SDHCI_SDMA)
static void sdhci_prepare_adma_table(struct sdhci_host *host,
struct mmc_data *data)
{}
#endif
#if (defined(CONFIG_MMC_SDHCI_SDMA) || CONFIG_IS_ENABLED(MMC_SDHCI_ADMA))
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data,
int *is_aligned, int trans_bytes)
{
mmc: sdhci: add the DMA select for SDMA In host-control register, DMA select bit field is present. BUt in sdhci.c, didn't select for DMA. if set CONFIG_MMC_SDMA, we need to set SDMA-select bit. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-20 20:31:55 +00:00
unsigned char ctrl;
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
if (data->flags == MMC_DATA_READ)
host->start_addr = (dma_addr_t)data->dest;
else
host->start_addr = (dma_addr_t)data->src;
Fix wrong sdhci host control register read and write The patch fixes the improper read and write of sdhci host control register for sdma transfer. The problem comes when reading and writing 1 byte long host control register with the sdhci_readl() and sdhci_writel(). The misuse of these functions overwrite the value of the next registers which are in 4 bytes boundary. This patch replaces four byte register read/write functions with one byte read/write ones. Beside, it eliminates unnecessary bit operation. i.e. or-ing zero against a variable. Signed-off-by: Juhyun (Justin) Oh <Juhyun_Oh@sigmadesigns.com>
2013-09-13 18:06:00 +00:00
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
mmc: sdhci: add the DMA select for SDMA In host-control register, DMA select bit field is present. BUt in sdhci.c, didn't select for DMA. if set CONFIG_MMC_SDMA, we need to set SDMA-select bit. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-20 20:31:55 +00:00
ctrl &= ~SDHCI_CTRL_DMA_MASK;
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
if (host->flags & USE_ADMA64)
ctrl |= SDHCI_CTRL_ADMA64;
else if (host->flags & USE_ADMA)
ctrl |= SDHCI_CTRL_ADMA32;
Fix wrong sdhci host control register read and write The patch fixes the improper read and write of sdhci host control register for sdma transfer. The problem comes when reading and writing 1 byte long host control register with the sdhci_readl() and sdhci_writel(). The misuse of these functions overwrite the value of the next registers which are in 4 bytes boundary. This patch replaces four byte register read/write functions with one byte read/write ones. Beside, it eliminates unnecessary bit operation. i.e. or-ing zero against a variable. Signed-off-by: Juhyun (Justin) Oh <Juhyun_Oh@sigmadesigns.com>
2013-09-13 18:06:00 +00:00
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
if (host->flags & USE_SDMA) {
if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) &&
(host->start_addr & 0x7) != 0x0) {
*is_aligned = 0;
host->start_addr = (unsigned long)aligned_buffer;
if (data->flags != MMC_DATA_READ)
memcpy(aligned_buffer, data->src, trans_bytes);
}
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER)
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
/*
* Always use this bounce-buffer when
* CONFIG_FIXED_SDHCI_ALIGNED_BUFFER is defined
*/
*is_aligned = 0;
host->start_addr = (unsigned long)aligned_buffer;
if (data->flags != MMC_DATA_READ)
memcpy(aligned_buffer, data->src, trans_bytes);
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
#endif
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
sdhci_writel(host, host->start_addr, SDHCI_DMA_ADDRESS);
} else if (host->flags & (USE_ADMA | USE_ADMA64)) {
sdhci_prepare_adma_table(host, data);
sdhci_writel(host, (u32)host->adma_addr, SDHCI_ADMA_ADDRESS);
if (host->flags & USE_ADMA64)
sdhci_writel(host, (u64)host->adma_addr >> 32,
SDHCI_ADMA_ADDRESS_HI);
}
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
flush_cache(host->start_addr, ROUND(trans_bytes, ARCH_DMA_MINALIGN));
}
#else
static void sdhci_prepare_dma(struct sdhci_host *host, struct mmc_data *data,
int *is_aligned, int trans_bytes)
{}
mmc: sdhci: add the DMA select for SDMA In host-control register, DMA select bit field is present. BUt in sdhci.c, didn't select for DMA. if set CONFIG_MMC_SDMA, we need to set SDMA-select bit. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-20 20:31:55 +00:00
#endif
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data)
{
dma_addr_t start_addr = host->start_addr;
unsigned int stat, rdy, mask, timeout, block = 0;
bool transfer_done = false;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mmc: sdhci: increase the timeout value for data transfer Timeout value is tunable. When run read/write operation, sometime returned the timeout error. Because the timeout value is too short. So increased the enough timeout value. (This timeout value is used to prevent the infinite loop.) Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-20 20:31:54 +00:00
timeout = 1000000;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL;
mask = SDHCI_DATA_AVAILABLE | SDHCI_SPACE_AVAILABLE;
do {
stat = sdhci_readl(host, SDHCI_INT_STATUS);
if (stat & SDHCI_INT_ERROR) {
mmc: sdhci: change data transfer failure into debug message During the tuning, drivers repeat data transfer, changing timing parameters in the controller hardware. So, the tuning commands (CMD19 for SD, CMD21 for eMMC) fail, and this is not a problem at all. Showing "Error detected..." in normal operation just make users upset. This should not be shown. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-29 17:00:12 +00:00
pr_debug("%s: Error detected in status(0x%X)!\n",
__func__, stat);
mmc: sdhci: use the generic error number Use the generic error number instead of meaningless value. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-25 23:10:02 +00:00
return -EIO;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
mmc: sdhci: Wait for SDHCI_INT_DATA_END when transferring. sdhci_transfer_data() function transfers the blocks passed up to the number of blocks defined in mmc_data, but returns immediately once all the blocks are transferred, even if the loop exit condition is not met (bit SDHCI_INT_DATA_END set in the STATUS word). When doing multiple writes to mmc, returning right after the last block is transferred can cause the write to fail when sending the MMC_CMD_STOP_TRANSMISSION command right after the MMC_CMD_WRITE_MULTIPLE_BLOCK command, leaving the mmc driver in an unconsistent state until reboot. This error was observed in the rpi3 board. This patch waits for the SDHCI_INT_DATA_END bit to be set even after sending all the blocks. Test: Reliably wrote 2GiB of data to mmc in a rpi3. Signed-off-by: Alex Deymo <deymo@google.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-04-02 08:24:34 +00:00
if (!transfer_done && (stat & rdy)) {
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & mask))
continue;
sdhci_writel(host, rdy, SDHCI_INT_STATUS);
sdhci_transfer_pio(host, data);
data->dest += data->blocksize;
mmc: sdhci: Wait for SDHCI_INT_DATA_END when transferring. sdhci_transfer_data() function transfers the blocks passed up to the number of blocks defined in mmc_data, but returns immediately once all the blocks are transferred, even if the loop exit condition is not met (bit SDHCI_INT_DATA_END set in the STATUS word). When doing multiple writes to mmc, returning right after the last block is transferred can cause the write to fail when sending the MMC_CMD_STOP_TRANSMISSION command right after the MMC_CMD_WRITE_MULTIPLE_BLOCK command, leaving the mmc driver in an unconsistent state until reboot. This error was observed in the rpi3 board. This patch waits for the SDHCI_INT_DATA_END bit to be set even after sending all the blocks. Test: Reliably wrote 2GiB of data to mmc in a rpi3. Signed-off-by: Alex Deymo <deymo@google.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-04-02 08:24:34 +00:00
if (++block >= data->blocks) {
/* Keep looping until the SDHCI_INT_DATA_END is
* cleared, even if we finished sending all the
* blocks.
*/
transfer_done = true;
continue;
}
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
if ((host->flags & USE_DMA) && !transfer_done &&
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
(stat & SDHCI_INT_DMA_END)) {
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
sdhci_writel(host, SDHCI_INT_DMA_END, SDHCI_INT_STATUS);
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
if (host->flags & USE_SDMA) {
start_addr &=
~(SDHCI_DEFAULT_BOUNDARY_SIZE - 1);
start_addr += SDHCI_DEFAULT_BOUNDARY_SIZE;
sdhci_writel(host, start_addr,
SDHCI_DMA_ADDRESS);
}
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
mmc: sdhci: add timeout for data transfer Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-08 04:14:57 +00:00
if (timeout-- > 0)
udelay(10);
else {
mmc: Minor cleanup of sdhci.c Fixup prints to show where the print is done from, and a few minor formatting/grammar issues. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-12-19 23:13:25 +00:00
printf("%s: Transfer data timeout\n", __func__);
mmc: sdhci: use the generic error number Use the generic error number instead of meaningless value. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-25 23:10:02 +00:00
return -ETIMEDOUT;
mmc: sdhci: add timeout for data transfer Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-08 04:14:57 +00:00
}
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
} while (!(stat & SDHCI_INT_DATA_END));
return 0;
}
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
/*
* No command will be sent by driver if card is busy, so driver must wait
* for card ready state.
* Every time when card is busy after timeout then (last) timeout value will be
* increased twice but only if it doesn't exceed global defined maximum.
mmc: sdhci: drop CONFIG_ from CONFIG_SDHCI_CMD_MAX_TIMEOUT No need for per-SoC adjustment for this parameter. It should be determined by the slowest hardware. Currently, no board overrides this CONFIG, so 3.2 sec is large enough. (If not, we can make it even larger.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:39 +00:00
* Each function call will use last timeout value.
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
*/
mmc: sdhci: drop CONFIG_ from CONFIG_SDHCI_CMD_MAX_TIMEOUT No need for per-SoC adjustment for this parameter. It should be determined by the slowest hardware. Currently, no board overrides this CONFIG, so 3.2 sec is large enough. (If not, we can make it even larger.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:39 +00:00
#define SDHCI_CMD_MAX_TIMEOUT 3200
mmc: sdhci: drop CONFIG_ from CONFIG_SDHCI_CMD_DEFAULT_TIME This CONFIG is not configurable since it is not guarded by #ifndef. Nobody has complained about that, so there is no need to keep it as a CONFIG option. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:38 +00:00
#define SDHCI_CMD_DEFAULT_TIMEOUT 100
mmc: increase MMC SDHCI read status timeout Otherwise, ocassionally see errors like this: Flashing sparse image at offset 2078720 Flashing Sparse Image sdhci_send_command: Timeout for status update! mmc fail to send stop cmd write_sparse_image: Write failed, block #2181088 [0] This does not affect the actual writing speed, which is controlled by the default value: CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT It only increases the retries when reading: SDHCI_INT_STATUS to avoid the timeout error. Signed-off-by: Steve Rae <steve.rae@raedomain.com> Reviewed-by: Stefan Roese <sr@denx.de> Tested-by: Masahiro Yamada <yamada.masahiro@socionext.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-06-29 20:42:01 +00:00
#define SDHCI_READ_STATUS_TIMEOUT 1000
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
dm: mmc: Drop CONFIG_DM_MMC_OPS All boards which use DM_MMC have now been converted to use DM_MMC_OPS. Drop the option and good riddance. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-07-29 17:35:31 +00:00
#ifdef CONFIG_DM_MMC
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
static int sdhci_send_command(struct udevice *dev, struct mmc_cmd *cmd,
struct mmc_data *data)
{
struct mmc *mmc = mmc_get_mmc_dev(dev);
#else
sdhci: make local functions static Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-10-08 20:57:43 +00:00
static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
struct mmc_data *data)
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
{
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
#endif
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
struct sdhci_host *host = mmc->priv;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
unsigned int stat = 0;
int ret = 0;
int trans_bytes = 0, is_aligned = 1;
u32 mask, flags, mode;
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
unsigned int time = 0;
dm: mmc: Convert sdhci to support CONFIG_BLK Update sdhci.c so that it works with driver model enabled for block devices. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-05-14 20:03:04 +00:00
int mmc_dev = mmc_get_blk_desc(mmc)->devnum;
mmc: Changed the datatype of the variable to handle 64-bit arch This patch changed the datatype of variable "start" from uint to ulong to work properly on 64-bit machines as well. Also the return type of get_timer() function is ulong. Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-03 06:50:54 +00:00
ulong start = get_timer(0);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
host->start_addr = 0;
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
/* Timeout unit - ms */
mmc: sdhci: drop CONFIG_ from CONFIG_SDHCI_CMD_DEFAULT_TIME This CONFIG is not configurable since it is not guarded by #ifndef. Nobody has complained about that, so there is no need to keep it as a CONFIG option. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:38 +00:00
static unsigned int cmd_timeout = SDHCI_CMD_DEFAULT_TIMEOUT;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mask = SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT;
/* We shouldn't wait for data inihibit for stop commands, even
though they might use busy signaling */
mmc: sdhci: Handle execute tuning command in sdhci_send_command This patch upadted sdhci_send_command to handle execute tuning command. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:05 +00:00
if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION ||
mmc: sdhci: Fix MMC HS200 tuning command failures This patch fixes the mmc tuning command failures when tuning pattern data needs to read back for comparision against the expected bit pattern. Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-13 06:13:01 +00:00
((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK ||
cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) && !data))
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mask &= ~SDHCI_DATA_INHIBIT;
while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) {
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
if (time >= cmd_timeout) {
mmc: Minor cleanup of sdhci.c Fixup prints to show where the print is done from, and a few minor formatting/grammar issues. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-12-19 23:13:25 +00:00
printf("%s: MMC: %d busy ", __func__, mmc_dev);
mmc: sdhci: drop CONFIG_ from CONFIG_SDHCI_CMD_MAX_TIMEOUT No need for per-SoC adjustment for this parameter. It should be determined by the slowest hardware. Currently, no board overrides this CONFIG, so 3.2 sec is large enough. (If not, we can make it even larger.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:39 +00:00
if (2 * cmd_timeout <= SDHCI_CMD_MAX_TIMEOUT) {
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
cmd_timeout += cmd_timeout;
printf("timeout increasing to: %u ms.\n",
cmd_timeout);
} else {
puts("timeout.\n");
mmc: use the generic error number Use the generic error number instead of specific error number. If use the generic error number, it can debug more easier. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2016-07-19 07:33:36 +00:00
return -ECOMM;
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
}
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
mmc: sdhci: Avoid commands errors by simple timeout adaptation. Old command timeout value was too small and it caused I/O errors which led to uncompleted read/write/erase operations and filesystem errors. Timeout adaptation fixes this issue. Changes in sdhci_send_command() function: - change timeout variable to static - increase default command timeout to 100 ms - add definition of max command timeout value, which can be redefined in each board config file - wait for card ready state for max defined time if it doesn't exceed defined maximum or return COMM_ERR Once successfully increased timeout value will be used in next function call. This fix was tested on Goni, Trats, Trats2 boards by testing UMS on MMC storage. Changes v2: - move global variable cmd_timeout into function sdhci_send_command() - change condition "==" to ">=" when comparing time with timeout - print information about timeout increasing and card busy timeout Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-10-08 16:12:09 +00:00
time++;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
udelay(1000);
}
mmc: sdhci: don't clear SDHCI_INT_STATUS register during CMD_INHIBIT Fixes emmc initialization regression on the db410c platform. Clearing this register while SDHCI_PRESENT_STATE reports SDHCI_CMD_INHIBIT leads to undefined behaviour on the db410c. When commit 7dde50 was merged (mmc: sdhci: Wait for SDHCI_INT_DATA_END when transferring), SDHCI transfers transitioned to wait for bit SDHCI_INT_DATA_END before flagging transfers done. Without this patch, the db410 platform fails to initialize its eMMC due to all of its transfers timing out (SDHCI_INT_DATA_END is never raised after all the blocks have been transferred). Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
2017-11-02 14:10:21 +00:00
sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_INT_STATUS);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mask = SDHCI_INT_RESPONSE;
mmc: sdhci: Fix MMC HS200 tuning command failures This patch fixes the mmc tuning command failures when tuning pattern data needs to read back for comparision against the expected bit pattern. Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-13 06:13:01 +00:00
if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK ||
cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) && !data)
mmc: sdhci: Handle execute tuning command in sdhci_send_command This patch upadted sdhci_send_command to handle execute tuning command. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:05 +00:00
mask = SDHCI_INT_DATA_AVAIL;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if (!(cmd->resp_type & MMC_RSP_PRESENT))
flags = SDHCI_CMD_RESP_NONE;
else if (cmd->resp_type & MMC_RSP_136)
flags = SDHCI_CMD_RESP_LONG;
else if (cmd->resp_type & MMC_RSP_BUSY) {
flags = SDHCI_CMD_RESP_SHORT_BUSY;
mmc: sdhci: set to INT_DATA_END when there are data There is no data, it doesn't needs to wait for completing data transfer. (It seems that it can be removed.) Almost all timeout error is occured from stop command without data. After applied this patch, I hope that we don't need to increase timeout value anymore. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Tested-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Minkyu Kang <mk7.kang@samsung.com>
2016-07-12 12:18:46 +00:00
if (data)
mask |= SDHCI_INT_DATA_END;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
} else
flags = SDHCI_CMD_RESP_SHORT;
if (cmd->resp_type & MMC_RSP_CRC)
flags |= SDHCI_CMD_CRC;
if (cmd->resp_type & MMC_RSP_OPCODE)
flags |= SDHCI_CMD_INDEX;
mmc: sdhci: Update sdhci_send_command() to handle HS200 This patch updates sdhci_send_command() to handle MMC HS200 tuning command. Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-29 14:33:10 +00:00
if (data || cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK ||
cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200)
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
flags |= SDHCI_CMD_DATA;
mmc: Minor cleanup of sdhci.c Fixup prints to show where the print is done from, and a few minor formatting/grammar issues. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-12-19 23:13:25 +00:00
/* Set Transfer mode regarding to data flag */
mmc: sdhci: do not compare pointer to 0 data is defined as struct mmc_data *data. So it should not be compared to 0. Problem identified with Coccinelle. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-11-10 20:13:34 +00:00
if (data) {
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL);
mode = SDHCI_TRNS_BLK_CNT_EN;
trans_bytes = data->blocks * data->blocksize;
if (data->blocks > 1)
mode |= SDHCI_TRNS_MULTI;
if (data->flags == MMC_DATA_READ)
mode |= SDHCI_TRNS_READ;
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
if (host->flags & USE_DMA) {
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
mode |= SDHCI_TRNS_DMA;
sdhci_prepare_dma(host, data, &is_aligned, trans_bytes);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
sdhci_writew(host, SDHCI_MAKE_BLKSZ(SDHCI_DEFAULT_BOUNDARY_ARG,
data->blocksize),
SDHCI_BLOCK_SIZE);
sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT);
sdhci_writew(host, mode, SDHCI_TRANSFER_MODE);
mmc: sdhci: add timeout setting for response busy command Timeout interrupt also work for response busy command(R1b) like cmd38/cmd6. So need to set it accordingly. Current code only set timeout for data command. Signed-off-by: Kevin Liu <kliu5@marvell.com> Signed-off-by: Rob Herring <robh@kernel.org> Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
2015-03-23 22:57:00 +00:00
} else if (cmd->resp_type & MMC_RSP_BUSY) {
sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
sdhci_writel(host, cmd->cmdarg, SDHCI_ARGUMENT);
sdhci_writew(host, SDHCI_MAKE_CMD(cmd->cmdidx, flags), SDHCI_COMMAND);
mmc: sdhci: Use timer based timeout detection in sdhci_send_command() The loop counter based timeout detection does not work on the Armada 38x based board (DB-88F6820-GP). At least with dcache enabled a timeout is detected. Without dcache enabled, the timeout does not occur. Increasing the loop counter solves this issue. But a better solution is to use a timer based timeout detection instead. This patch now implements this timer based detection. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-06-29 12:58:08 +00:00
start = get_timer(0);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
do {
stat = sdhci_readl(host, SDHCI_INT_STATUS);
if (stat & SDHCI_INT_ERROR)
break;
mmc: sdhci: clean up timeout detection The current timeout detection logic is not very nice; it calls get_timer(start) in the while() loop, and then calls it again after the loop to check if a timeout error happened. Because of the time difference between the two calls of get_timer(), the timeout detected after the loop may not be true. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-07-09 15:40:22 +00:00
if (get_timer(start) >= SDHCI_READ_STATUS_TIMEOUT) {
if (host->quirks & SDHCI_QUIRK_BROKEN_R1B) {
return 0;
} else {
printf("%s: Timeout for status update!\n",
__func__);
mmc: use the generic error number Use the generic error number instead of specific error number. If use the generic error number, it can debug more easier. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2016-07-19 07:33:36 +00:00
return -ETIMEDOUT;
mmc: sdhci: clean up timeout detection The current timeout detection logic is not very nice; it calls get_timer(start) in the while() loop, and then calls it again after the loop to check if a timeout error happened. Because of the time difference between the two calls of get_timer(), the timeout detected after the loop may not be true. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-07-09 15:40:22 +00:00
}
mmc: sdhci: add the quirk for broken r1b response When response type is R1b, mask value is added the SDHCI_INT_DAT_END. but in while(), didn't check that flag. So sdhci controller didn't work fine. CMD6 didn't always complete. So add the quirks for broken r1b response and add the timeout value to prevent the infinite loop. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Lei Wen<leiwen@marvell.com>
2012-04-23 02:36:25 +00:00
}
mmc: sdhci: clean up timeout detection The current timeout detection logic is not very nice; it calls get_timer(start) in the while() loop, and then calls it again after the loop to check if a timeout error happened. Because of the time difference between the two calls of get_timer(), the timeout detected after the loop may not be true. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-07-09 15:40:22 +00:00
} while ((stat & mask) != mask);
mmc: sdhci: add the quirk for broken r1b response When response type is R1b, mask value is added the SDHCI_INT_DAT_END. but in while(), didn't check that flag. So sdhci controller didn't work fine. CMD6 didn't always complete. So add the quirks for broken r1b response and add the timeout value to prevent the infinite loop. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Lei Wen<leiwen@marvell.com>
2012-04-23 02:36:25 +00:00
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if ((stat & (SDHCI_INT_ERROR | mask)) == mask) {
sdhci_cmd_done(host, cmd);
sdhci_writel(host, mask, SDHCI_INT_STATUS);
} else
ret = -1;
if (!ret && data)
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
ret = sdhci_transfer_data(host, data);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mmc: sdhci: Add a quirk to add delay during completion of sdhci_send_cmd MMC host controller requires a delay between every sdhci_send_cmd() execution. In s5p_mmc driver (s5p_sdhci replaces this driver), a delay of 1000us was provided after every mmc_send_cmd() call. Adding a quirk in current sdhci driver to replicate the behaviour. Without this delay, MMC initialization on Origen board fails with following error messages. Timeout for status update! mmc fail to send stop cmd Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-09-20 20:31:57 +00:00
if (host->quirks & SDHCI_QUIRK_WAIT_SEND_CMD)
udelay(1000);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
stat = sdhci_readl(host, SDHCI_INT_STATUS);
sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_INT_STATUS);
if (!ret) {
if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) &&
!is_aligned && (data->flags == MMC_DATA_READ))
memcpy(data->dest, aligned_buffer, trans_bytes);
return 0;
}
sdhci_reset(host, SDHCI_RESET_CMD);
sdhci_reset(host, SDHCI_RESET_DATA);
if (stat & SDHCI_INT_TIMEOUT)
mmc: use the generic error number Use the generic error number instead of specific error number. If use the generic error number, it can debug more easier. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2016-07-19 07:33:36 +00:00
return -ETIMEDOUT;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
else
mmc: use the generic error number Use the generic error number instead of specific error number. If use the generic error number, it can debug more easier. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2016-07-19 07:33:36 +00:00
return -ECOMM;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
mmc: sdhci: Invoke platform specific tuning and delay routines This patch adds support to invoke any platform specific tuning and delay routines if available. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:07 +00:00
#if defined(CONFIG_DM_MMC) && defined(MMC_SUPPORTS_TUNING)
static int sdhci_execute_tuning(struct udevice *dev, uint opcode)
{
int err;
struct mmc *mmc = mmc_get_mmc_dev(dev);
struct sdhci_host *host = mmc->priv;
debug("%s\n", __func__);
mmc: sdhci: Check that ops are defined The check is necessary to avoid NULL pointer dereference. Signed-off-by: Ramon Fried <ramon.fried@gmail.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com>
2018-05-14 12:02:30 +00:00
if (host->ops && host->ops->platform_execute_tuning) {
mmc: sdhci: Invoke platform specific tuning and delay routines This patch adds support to invoke any platform specific tuning and delay routines if available. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:07 +00:00
err = host->ops->platform_execute_tuning(mmc, opcode);
if (err)
return err;
return 0;
}
return 0;
}
#endif
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
{
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
struct sdhci_host *host = mmc->priv;
mmc: sdhci: Clear SDHCI_CLOCK_CONTROL before configuring the new value This patch completely clears the SDHCI_CLOCK_CONTROL register before the new value is configured instead of just clearing the 2 bits SDHCI_CLOCK_CARD_EN and SDHCI_CLOCK_INT_EN. Without this change, some clock configurations will lead to the "Internal clock never stabilised." error message on the Xenon SDHCI controller used on the Marvell Armada 3700 and 7k/8k ARM64 SoCs. The Linux SDHCI core driver also writes 0 to this register before the new value is configured. So this patch simplifies the driver a bit and brings the U-Boot driver more in-line with the Linux one. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-12 07:34:42 +00:00
unsigned int div, clk = 0, timeout;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mmc: sdhci: Fix the SD clock stop sequence According to the SDHC specification, stopping the SD Clock is by setting the SD Clock Enable bit in the Clock Control register at 0, instead of setting all bits at 0. Before stopping the SD clock, we need to make sure all SD transactions to complete, so add checking the CMD and DAT bits in the Presen State register, before stopping the SD clock. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2015-09-22 06:59:25 +00:00
/* Wait max 20 ms */
timeout = 200;
while (sdhci_readl(host, SDHCI_PRESENT_STATE) &
(SDHCI_CMD_INHIBIT | SDHCI_DATA_INHIBIT)) {
if (timeout == 0) {
printf("%s: Timeout to wait cmd & data inhibit\n",
__func__);
mmc: sdhci: use the generic error number Use the generic error number instead of meaningless value. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-25 23:10:02 +00:00
return -EBUSY;
mmc: sdhci: Fix the SD clock stop sequence According to the SDHC specification, stopping the SD Clock is by setting the SD Clock Enable bit in the Clock Control register at 0, instead of setting all bits at 0. Before stopping the SD clock, we need to make sure all SD transactions to complete, so add checking the CMD and DAT bits in the Presen State register, before stopping the SD clock. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2015-09-22 06:59:25 +00:00
}
timeout--;
udelay(100);
}
mmc: sdhci: Clear SDHCI_CLOCK_CONTROL before configuring the new value This patch completely clears the SDHCI_CLOCK_CONTROL register before the new value is configured instead of just clearing the 2 bits SDHCI_CLOCK_CARD_EN and SDHCI_CLOCK_INT_EN. Without this change, some clock configurations will lead to the "Internal clock never stabilised." error message on the Xenon SDHCI controller used on the Marvell Armada 3700 and 7k/8k ARM64 SoCs. The Linux SDHCI core driver also writes 0 to this register before the new value is configured. So this patch simplifies the driver a bit and brings the U-Boot driver more in-line with the Linux one. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-12 07:34:42 +00:00
sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if (clock == 0)
return 0;
mmc: sdhci: Check that ops are defined The check is necessary to avoid NULL pointer dereference. Signed-off-by: Ramon Fried <ramon.fried@gmail.com> Reviewed-by: Michal Simek <michal.simek@xilinx.com>
2018-05-14 12:02:30 +00:00
if (host->ops && host->ops->set_delay)
mmc: sdhci: Invoke platform specific tuning and delay routines This patch adds support to invoke any platform specific tuning and delay routines if available. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:07 +00:00
host->ops->set_delay(host);
mmc: sdhci: use the SDHCI_QUIRK_USE_WIDE8 for samsung SoC Samsung SoC is supported the WIDE8, even if Controller version is v2.0. So add the SDHCI_QUIRK_USE_WIDE8 for Samsung-SoC. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-07-19 08:44:49 +00:00
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
mmc: sdhci: Add the programmable clock mode support Add the programmable clock mode for the clock generator. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-09-18 01:01:22 +00:00
/*
* Check if the Host Controller supports Programmable Clock
* Mode.
*/
if (host->clk_mul) {
for (div = 1; div <= 1024; div++) {
mmc: sdhci: Fix maximum clock for programmable clock mode In the programmable clock mode, the SDCLK frequency is incorrectly assigned when the maximum clock has been assigned during probe, this causes the SDHCI not work well. In the programmable clock mode, when calculating the SDCLK Frequency Select, when the maximum clock has been assigned, it is the actual value, should not be multiplied by host->clk_mul. Otherwise, the maximum clock is multiplied host->clk_mul by the base clock achieved from the BASECLKF field of the Capabilities 0 Register. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2017-04-26 01:32:30 +00:00
if ((host->max_clk / div) <= clock)
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
break;
}
mmc: sdhci: Add the programmable clock mode support Add the programmable clock mode for the clock generator. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-09-18 01:01:22 +00:00
/*
* Set Programmable Clock Mode in the Clock
* Control register.
*/
clk = SDHCI_PROG_CLOCK_MODE;
div--;
} else {
/* Version 3.00 divisors must be a multiple of 2. */
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
if (host->max_clk <= clock) {
mmc: sdhci: Add the programmable clock mode support Add the programmable clock mode for the clock generator. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-09-18 01:01:22 +00:00
div = 1;
} else {
for (div = 2;
div < SDHCI_MAX_DIV_SPEC_300;
div += 2) {
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
if ((host->max_clk / div) <= clock)
mmc: sdhci: Add the programmable clock mode support Add the programmable clock mode for the clock generator. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-09-18 01:01:22 +00:00
break;
}
}
div >>= 1;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
} else {
/* Version 2.00 divisors must be a power of 2. */
for (div = 1; div < SDHCI_MAX_DIV_SPEC_200; div *= 2) {
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
if ((host->max_clk / div) <= clock)
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
break;
}
mmc: sdhci: Add the programmable clock mode support Add the programmable clock mode for the clock generator. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-09-18 01:01:22 +00:00
div >>= 1;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
mmc: sdhci: fix NULL pointer access when host->ops is not set Until recently, sdhci_ops was used only for overriding IO accessors. (so, host->ops was not set by any drivers except bcm2835_sdhci.c) Now, we have more optional callbacks, get_cd, set_control_reg, and set_clock. However, the code if (host->ops->get_cd) host->ops->get_cd(host); ... expects host->ops is set for all drivers. Commit 5e96217f0434 ("mmc: pic32_sdhci: move the code to pic32_sdhci.c") and commit 62226b68631b ("mmc: sdhci: move the callback function into sdhci_ops") added sdhci_ops for pic32_sdhci.c and s5p_sdhci.c, but the other drivers still do not (need not) set host->ops because all callbacks in sdhci_ops are optional. host->ops must be checked to avoid the system crash caused by NULL pointer access. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-13 02:51:51 +00:00
if (host->ops && host->ops->set_clock)
mmc: sdhci: move the callback function into sdhci_ops callback function should be moved into sdhci_ops struct. Other controller can use these ops for controlling clock or their own specific register. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-30 06:30:18 +00:00
host->ops->set_clock(host, div);
mmc: s5p_sdhci: add the set_mmc_clk for cmu control Samsung SoC use the cmu control to set clock. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-08-30 16:24:11 +00:00
mmc: sdhci: Add the programmable clock mode support Add the programmable clock mode for the clock generator. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-09-18 01:01:22 +00:00
clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
<< SDHCI_DIVIDER_HI_SHIFT;
clk |= SDHCI_CLOCK_INT_EN;
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
/* Wait max 20 ms */
timeout = 20;
while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL))
& SDHCI_CLOCK_INT_STABLE)) {
if (timeout == 0) {
mmc: Minor cleanup of sdhci.c Fixup prints to show where the print is done from, and a few minor formatting/grammar issues. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-12-19 23:13:25 +00:00
printf("%s: Internal clock never stabilised.\n",
__func__);
mmc: sdhci: use the generic error number Use the generic error number instead of meaningless value. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-25 23:10:02 +00:00
return -EBUSY;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
timeout--;
udelay(1000);
}
clk |= SDHCI_CLOCK_CARD_EN;
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
return 0;
}
static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
{
u8 pwr = 0;
if (power != (unsigned short)-1) {
switch (1 << power) {
case MMC_VDD_165_195:
pwr = SDHCI_POWER_180;
break;
case MMC_VDD_29_30:
case MMC_VDD_30_31:
pwr = SDHCI_POWER_300;
break;
case MMC_VDD_32_33:
case MMC_VDD_33_34:
pwr = SDHCI_POWER_330;
break;
}
}
if (pwr == 0) {
sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);
return;
}
pwr |= SDHCI_POWER_ON;
sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);
}
dm: mmc: Drop CONFIG_DM_MMC_OPS All boards which use DM_MMC have now been converted to use DM_MMC_OPS. Drop the option and good riddance. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-07-29 17:35:31 +00:00
#ifdef CONFIG_DM_MMC
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
static int sdhci_set_ios(struct udevice *dev)
{
struct mmc *mmc = mmc_get_mmc_dev(dev);
#else
mmc: change the set_ios return type from void to int To maintain consistency, set_ios type of legacy mmc_ops changed to int. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-30 06:30:16 +00:00
static int sdhci_set_ios(struct mmc *mmc)
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
{
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
#endif
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
u32 ctrl;
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
struct sdhci_host *host = mmc->priv;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mmc: sdhci: fix NULL pointer access when host->ops is not set Until recently, sdhci_ops was used only for overriding IO accessors. (so, host->ops was not set by any drivers except bcm2835_sdhci.c) Now, we have more optional callbacks, get_cd, set_control_reg, and set_clock. However, the code if (host->ops->get_cd) host->ops->get_cd(host); ... expects host->ops is set for all drivers. Commit 5e96217f0434 ("mmc: pic32_sdhci: move the code to pic32_sdhci.c") and commit 62226b68631b ("mmc: sdhci: move the callback function into sdhci_ops") added sdhci_ops for pic32_sdhci.c and s5p_sdhci.c, but the other drivers still do not (need not) set host->ops because all callbacks in sdhci_ops are optional. host->ops must be checked to avoid the system crash caused by NULL pointer access. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-13 02:51:51 +00:00
if (host->ops && host->ops->set_control_reg)
mmc: sdhci: move the callback function into sdhci_ops callback function should be moved into sdhci_ops struct. Other controller can use these ops for controlling clock or their own specific register. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-30 06:30:18 +00:00
host->ops->set_control_reg(host);
mmc: add the quirk to use the sdhci for samsung-soc To support the Samsung-SoC, added the basically functions. Samsung-SoC didn't used the SDHCI_CTRL_HISPD. And added set_control_reg callback for s3c64xx. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Lei Wen<leiwen@marvell.com>
2012-04-23 02:36:26 +00:00
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if (mmc->clock != host->clock)
sdhci_set_clock(mmc, mmc->clock);
mmc: sdhci: Add support for disabling clock This patch adds support to disable clock if clk_disable was set and then enable or set clock if the clock was changed or clock was disabled when clock needs to be enabled. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:04 +00:00
if (mmc->clk_disable)
sdhci_set_clock(mmc, 0);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
/* Set bus width */
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
if (mmc->bus_width == 8) {
ctrl &= ~SDHCI_CTRL_4BITBUS;
mmc: sdhci: use the SDHCI_QUIRK_USE_WIDE8 for samsung SoC Samsung SoC is supported the WIDE8, even if Controller version is v2.0. So add the SDHCI_QUIRK_USE_WIDE8 for Samsung-SoC. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-07-19 08:44:49 +00:00
if ((SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) ||
(host->quirks & SDHCI_QUIRK_USE_WIDE8))
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
ctrl |= SDHCI_CTRL_8BITBUS;
} else {
mmc: sdhci: fix bus width switching on Samsung SoCs Fix bus width switching from 8-bit mode down to 4-bit or 1-bit modes on Samsung SoCs using SDHCI_QUIRK_USE_WIDE8. These SoCs report controller version 2.0 yet they support 8-bit bus widths. If 8-bit mode was previously enabled and then an operation like "mmc dev" caused a switch back down to 4-bit or 1-bit mode, WIDE8 was left set, causing failures. This problem was manifested by "mmc dev" timing out. Signed-off-by: Matt Reimer <mreimer@sdgsystems.com>
2015-02-19 18:22:53 +00:00
if ((SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) ||
(host->quirks & SDHCI_QUIRK_USE_WIDE8))
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
ctrl &= ~SDHCI_CTRL_8BITBUS;
if (mmc->bus_width == 4)
ctrl |= SDHCI_CTRL_4BITBUS;
else
ctrl &= ~SDHCI_CTRL_4BITBUS;
}
if (mmc->clock > 26000000)
ctrl |= SDHCI_CTRL_HISPD;
else
ctrl &= ~SDHCI_CTRL_HISPD;
mmc: sdhci: add SDHCI_QUIRK_BROKEN_HISPD_MODE Some IP-core implementations of the SDHCI have different troubles on the silicon where they are placed. On ZYNQ platform for example Xilinx doesn't accept the hold timing of an eMMC chip which operates in High-Speed mode and must be forced to operate in non high-speed mode. To get rid of this "SDHCI_QUIRK_BROKEN_HISPD_MODE" is introduced. For more details about this refer to the Xilinx answer-recor #59999 https://www.xilinx.com/support/answers/59999.html This commit: - doesn't set HISPD bit on the host-conroller - reflects this fact within the host-controller capabilities Upon this the layer above (mmc-driver) can setup the card correctly. Otherwise the MMC card will be switched into high-speed mode and causes possible timing violation on the host-controller side. Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at> Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2018-03-07 07:00:56 +00:00
if ((host->quirks & SDHCI_QUIRK_NO_HISPD_BIT) ||
(host->quirks & SDHCI_QUIRK_BROKEN_HISPD_MODE))
mmc: add the quirk to use the sdhci for samsung-soc To support the Samsung-SoC, added the basically functions. Samsung-SoC didn't used the SDHCI_CTRL_HISPD. And added set_control_reg callback for s3c64xx. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Lei Wen<leiwen@marvell.com>
2012-04-23 02:36:26 +00:00
ctrl &= ~SDHCI_CTRL_HISPD;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
mmc: change the set_ios return type from void to int To maintain consistency, set_ios type of legacy mmc_ops changed to int. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-30 06:30:16 +00:00
mmc: sdhci: Add support for optional controller specific set_ios_post() Some SDHCI drivers might need to do some special controller configuration after the common clock set_ios() function has been called (speed / width configuration). This patch adds a call to the newly created function set_ios_port() when its configured in the host driver. This will be used by the Xenon SDHCI controller driver used on the Marvell Armada 3700 and 7k/8k ARM64 SoCs. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-12 07:24:56 +00:00
/* If available, call the driver specific "post" set_ios() function */
if (host->ops && host->ops->set_ios_post)
host->ops->set_ios_post(host);
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
return 0;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
sdhci: make local functions static Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-10-08 20:57:43 +00:00
static int sdhci_init(struct mmc *mmc)
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
{
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
struct sdhci_host *host = mmc->priv;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
mmc: sdhci: move sdhci_reset() call to sdhci_init() If CONFIG_BLK is enabled, add_sdhci() is never called. So, sdhci_reset() is not called, either. This is a problem for my board as it needs the reset to start from a sane state. Move the add_sdhci() call to sdhci_init(), which is visited by both of the with/without CONFIG_BLK cases. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:34 +00:00
sdhci_reset(host, SDHCI_RESET_ALL);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && !aligned_buffer) {
aligned_buffer = memalign(8, 512*1024);
if (!aligned_buffer) {
mmc: Minor cleanup of sdhci.c Fixup prints to show where the print is done from, and a few minor formatting/grammar issues. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-12-19 23:13:25 +00:00
printf("%s: Aligned buffer alloc failed!!!\n",
__func__);
mmc: sdhci: use the generic error number Use the generic error number instead of meaningless value. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-25 23:10:02 +00:00
return -ENOMEM;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
}
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
sdhci_set_power(host, fls(mmc->cfg->voltages) - 1);
mmc: Add a SDHCI quirk for boards that have no CD Some boards have no Card Detect wired. In that case, set the CD test bits in the standard interface. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-08-17 10:18:55 +00:00
mmc: sdhci: fix NULL pointer access when host->ops is not set Until recently, sdhci_ops was used only for overriding IO accessors. (so, host->ops was not set by any drivers except bcm2835_sdhci.c) Now, we have more optional callbacks, get_cd, set_control_reg, and set_clock. However, the code if (host->ops->get_cd) host->ops->get_cd(host); ... expects host->ops is set for all drivers. Commit 5e96217f0434 ("mmc: pic32_sdhci: move the code to pic32_sdhci.c") and commit 62226b68631b ("mmc: sdhci: move the callback function into sdhci_ops") added sdhci_ops for pic32_sdhci.c and s5p_sdhci.c, but the other drivers still do not (need not) set host->ops because all callbacks in sdhci_ops are optional. host->ops must be checked to avoid the system crash caused by NULL pointer access. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-01-13 02:51:51 +00:00
if (host->ops && host->ops->get_cd)
mmc: sdhci: remove the SDHCI_QUIRK_NO_CD This quirk doesn't need anymore. It's replaced to get_cd callback function. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-30 06:30:15 +00:00
host->ops->get_cd(host);
mmc: Add a SDHCI quirk for boards that have no CD Some boards have no Card Detect wired. In that case, set the CD test bits in the standard interface. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2012-08-17 10:18:55 +00:00
mmc:sdhci:fix: Change default interrupts enabled at SDHCI initialization This patch changes sdhci_init()'s behavior to NOT enable all interrupt sources by default. Moreover interrupt signaling has been disabled. This patch do not enable interrupts which aren't served in u-boot (they are defined at sdhci.h but NOT used elsewhere): - SDHCI_INT_CARD_INSERT, SDHCI_INT_CARD_REMOVE, SDHCI_BUS_POWER, SDHCI_INT_CARD_REMOVE, SDHCI_INT_CARD_INT Special care shall be put on SDHCI_INT_CARD_INT, which indicates interrupt generated by SD card. According to "SD Host Controller Simplified Spec. ver 3.00" when bit 8 (Card Interrupt Status Enable) at "Normal Interrupt Status Enable Register" (offset 0x34) is set, the card interrupt detection is started. Then eMMC card may cause the SD controller to set this bit and then this interrupt is passed to booted OS and might cause kernel crash. To sum up: - Only enable interrupts, which are served at u-boot - This cleanup as a side effect fixes SDHCI's CARD INTERRUPT problem at Linux kernel (versions 3.6+, sdhci controller) - Keep masked bits at "Normal Interrupt Signal Enable Register" (0x38h) Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lei Wen <leiwen@marvell.com> Cc: Andy Fleming <afleming@freescale.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-01-11 05:08:54 +00:00
/* Enable only interrupts served by the SD controller */
mmc: Minor cleanup of sdhci.c Fixup prints to show where the print is done from, and a few minor formatting/grammar issues. Signed-off-by: Darwin Rambo <drambo@broadcom.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2013-12-19 23:13:25 +00:00
sdhci_writel(host, SDHCI_INT_DATA_MASK | SDHCI_INT_CMD_MASK,
SDHCI_INT_ENABLE);
mmc:sdhci:fix: Change default interrupts enabled at SDHCI initialization This patch changes sdhci_init()'s behavior to NOT enable all interrupt sources by default. Moreover interrupt signaling has been disabled. This patch do not enable interrupts which aren't served in u-boot (they are defined at sdhci.h but NOT used elsewhere): - SDHCI_INT_CARD_INSERT, SDHCI_INT_CARD_REMOVE, SDHCI_BUS_POWER, SDHCI_INT_CARD_REMOVE, SDHCI_INT_CARD_INT Special care shall be put on SDHCI_INT_CARD_INT, which indicates interrupt generated by SD card. According to "SD Host Controller Simplified Spec. ver 3.00" when bit 8 (Card Interrupt Status Enable) at "Normal Interrupt Status Enable Register" (offset 0x34) is set, the card interrupt detection is started. Then eMMC card may cause the SD controller to set this bit and then this interrupt is passed to booted OS and might cause kernel crash. To sum up: - Only enable interrupts, which are served at u-boot - This cleanup as a side effect fixes SDHCI's CARD INTERRUPT problem at Linux kernel (versions 3.6+, sdhci controller) - Keep masked bits at "Normal Interrupt Signal Enable Register" (0x38h) Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lei Wen <leiwen@marvell.com> Cc: Andy Fleming <afleming@freescale.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2013-01-11 05:08:54 +00:00
/* Mask all sdhci interrupt sources */
sdhci_writel(host, 0x0, SDHCI_SIGNAL_ENABLE);
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
return 0;
}
dm: mmc: Drop CONFIG_DM_MMC_OPS All boards which use DM_MMC have now been converted to use DM_MMC_OPS. Drop the option and good riddance. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-07-29 17:35:31 +00:00
#ifdef CONFIG_DM_MMC
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
int sdhci_probe(struct udevice *dev)
{
struct mmc *mmc = mmc_get_mmc_dev(dev);
return sdhci_init(mmc);
}
mmc: Remove ops from struct mmc and put in mmc_ops Remove the in-structure ops and put them in mmc_ops with a constant pointer to it. This makes the mmc structure smaller as well as conserving code space (in theory). All in-tree drivers are converted as well; this is done in a single patch in order to not break git bisect. Changes since V1: Fix compilation b0rked issue on omap platforms where OMAP_GPIO was not set. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-02-26 17:28:45 +00:00
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
const struct dm_mmc_ops sdhci_ops = {
.send_cmd = sdhci_send_command,
.set_ios = sdhci_set_ios,
mmc: sdhci: Invoke platform specific tuning and delay routines This patch adds support to invoke any platform specific tuning and delay routines if available. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:07 +00:00
#ifdef MMC_SUPPORTS_TUNING
.execute_tuning = sdhci_execute_tuning,
#endif
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
};
#else
mmc: Remove ops from struct mmc and put in mmc_ops Remove the in-structure ops and put them in mmc_ops with a constant pointer to it. This makes the mmc structure smaller as well as conserving code space (in theory). All in-tree drivers are converted as well; this is done in a single patch in order to not break git bisect. Changes since V1: Fix compilation b0rked issue on omap platforms where OMAP_GPIO was not set. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-02-26 17:28:45 +00:00
static const struct mmc_ops sdhci_ops = {
.send_cmd = sdhci_send_command,
.set_ios = sdhci_set_ios,
.init = sdhci_init,
};
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
#endif
mmc: Remove ops from struct mmc and put in mmc_ops Remove the in-structure ops and put them in mmc_ops with a constant pointer to it. This makes the mmc structure smaller as well as conserving code space (in theory). All in-tree drivers are converted as well; this is done in a single patch in order to not break git bisect. Changes since V1: Fix compilation b0rked issue on omap platforms where OMAP_GPIO was not set. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-02-26 17:28:45 +00:00
mmc: sdhci: remove the unnecessary arguments for sdhci_setup_cfg Some arguments don't need to pass to sdhci_setup_cfg. Generic variable can be used in sdhci_setup_cfg, and some arguments are already included in sdhci_host struct. It's enough that just pass the board specific things to sdhci_setup_cfg(). After removing the unnecessary arguments, it's more simpler than before. It doesn't consider "Version" and "Capabilities" anymore in each SoC driver. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-26 10:06:24 +00:00
int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
u32 f_max, u32 f_min)
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
{
mmc: sdhci: Read capabilities register1 and update host caps This patch reads the capabilities register1 and update the host caps accordingly for mmc layer usage. This patch mainly reads for UHS capabilities inorder to support SD3.0. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:08 +00:00
u32 caps, caps_1 = 0;
mmc: sdhci: remove the unnecessary arguments for sdhci_setup_cfg Some arguments don't need to pass to sdhci_setup_cfg. Generic variable can be used in sdhci_setup_cfg, and some arguments are already included in sdhci_host struct. It's enough that just pass the board specific things to sdhci_setup_cfg(). After removing the unnecessary arguments, it's more simpler than before. It doesn't consider "Version" and "Capabilities" anymore in each SoC driver. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-26 10:06:24 +00:00
caps = sdhci_readl(host, SDHCI_CAPABILITIES);
mmc: sdhci: move SDMA capability check to sdhci_setup_cfg() If CONFIG_BLK is enabled, add_sdhci() is never called. Move this quirk handling to sdhci_setup_cfg(), which is now the central place for hardware capability checks. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:37 +00:00
mmc: move some SDHCI related options to Kconfig While I moved the options, I also renamed them so that they are all prefixed with MMC_SDHCI_. This commit was created in the following steps. [1] Rename with the following command find . -name .git -prune -o ! -path ./scripts/config_whitelist.txt \ -type f -print | xargs sed -i -e ' s/CONFIG_MMC_SDMA/CONFIG_MMC_SDHCI_SDMA/g s/CONFIG_BCM2835_SDHCI/CONFIG_MMC_SDHCI_BCM2835/g s/CONFIG_KONA_SDHCI/CONFIG_MMC_SDHCI_KONA/g s/CONFIG_MV_SDHCI/CONFIG_MMC_SDHCI_MV/g s/CONFIG_S5P_SDHCI/CONFIG_MMC_SDHCI_S5P/g s/CONFIG_SPEAR_SDHCI/CONFIG_MMC_SDHCI_SPEAR/g ' [2] create the Kconfig entries in drivers/mmc/Kconfig [3] Move the options by the following command tools/moveconfig.py -y MMC_SDHCI_SDMA MMC_SDHCI_BCM2835 \ MMC_SDHCI_KONA MMC_SDHCI_MV MMC_SDHCI_S5P MMC_SDHCI_SPEAR [4] Sort drivers/mmc/Makefile for readability Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-07 13:10:29 +00:00
#ifdef CONFIG_MMC_SDHCI_SDMA
mmc: sdhci: move SDMA capability check to sdhci_setup_cfg() If CONFIG_BLK is enabled, add_sdhci() is never called. Move this quirk handling to sdhci_setup_cfg(), which is now the central place for hardware capability checks. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:37 +00:00
if (!(caps & SDHCI_CAN_DO_SDMA)) {
printf("%s: Your controller doesn't support SDMA!!\n",
__func__);
return -EINVAL;
}
mmc: sdhci: Move DMA handling to prepare_dma() function In preparation for addition of ADMA2 support, cleanup SDMA handling by moving it to a new sdhci_prepare_dma() function. Also add a flags field in sdhci_host to indicate if DMA is enabled. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:57 +00:00
host->flags |= USE_SDMA;
mmc: sdhci: Add Support for ADMA2 The Standard Host Controller Interface (SDHCI) specification version 3.00 adds support for Advanced DMA (ADMA) for both 64 and 32 bit widths of DMA. ADMA2 uses a table of descriptors for aggregating DMA requests. This significantly improves read and write throughput. Add Support for the same. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-04-16 17:36:58 +00:00
#endif
#if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA)
if (!(caps & SDHCI_CAN_DO_ADMA2)) {
printf("%s: Your controller doesn't support SDMA!!\n",
__func__);
return -EINVAL;
}
host->adma_desc_table = (struct sdhci_adma_desc *)
memalign(ARCH_DMA_MINALIGN, ADMA_TABLE_SZ);
host->adma_addr = (dma_addr_t)host->adma_desc_table;
#ifdef CONFIG_DMA_ADDR_T_64BIT
host->flags |= USE_ADMA64;
#else
host->flags |= USE_ADMA;
#endif
mmc: sdhci: move SDMA capability check to sdhci_setup_cfg() If CONFIG_BLK is enabled, add_sdhci() is never called. Move this quirk handling to sdhci_setup_cfg(), which is now the central place for hardware capability checks. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:37 +00:00
#endif
mmc: sdhci: use the host version value in sdhci_setup_cfg "host->version" isn't a SoC specific value. It doesn't need to get in each SoC drivers. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2016-09-25 23:10:01 +00:00
if (host->quirks & SDHCI_QUIRK_REG32_RW)
host->version =
sdhci_readl(host, SDHCI_HOST_VERSION - 2) >> 16;
else
host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
mmc: sdhci: remove the unnecessary arguments for sdhci_setup_cfg Some arguments don't need to pass to sdhci_setup_cfg. Generic variable can be used in sdhci_setup_cfg, and some arguments are already included in sdhci_host struct. It's enough that just pass the board specific things to sdhci_setup_cfg(). After removing the unnecessary arguments, it's more simpler than before. It doesn't consider "Version" and "Capabilities" anymore in each SoC driver. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-26 10:06:24 +00:00
cfg->name = host->name;
dm: mmc: Drop CONFIG_DM_MMC_OPS All boards which use DM_MMC have now been converted to use DM_MMC_OPS. Drop the option and good riddance. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-07-29 17:35:31 +00:00
#ifndef CONFIG_DM_MMC
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->ops = &sdhci_ops;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
#endif
mmc: sdhci: Fix maximum clock for programmable clock mode In the programmable clock mode, the SDCLK frequency is incorrectly assigned when the maximum clock has been assigned during probe, this causes the SDHCI not work well. In the programmable clock mode, when calculating the SDCLK Frequency Select, when the maximum clock has been assigned, it is the actual value, should not be multiplied by host->clk_mul. Otherwise, the maximum clock is multiplied host->clk_mul by the base clock achieved from the BASECLKF field of the Capabilities 0 Register. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2017-04-26 01:32:30 +00:00
/* Check whether the clock multiplier is supported or not */
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
host->clk_mul = (caps_1 & SDHCI_CLOCK_MUL_MASK) >>
SDHCI_CLOCK_MUL_SHIFT;
}
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
if (host->max_clk == 0) {
mmc: sdhci: remove the unnecessary arguments for sdhci_setup_cfg Some arguments don't need to pass to sdhci_setup_cfg. Generic variable can be used in sdhci_setup_cfg, and some arguments are already included in sdhci_host struct. It's enough that just pass the board specific things to sdhci_setup_cfg(). After removing the unnecessary arguments, it's more simpler than before. It doesn't consider "Version" and "Capabilities" anymore in each SoC driver. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-26 10:06:24 +00:00
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300)
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
host->max_clk = (caps & SDHCI_CLOCK_V3_BASE_MASK) >>
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
SDHCI_CLOCK_BASE_SHIFT;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
else
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
host->max_clk = (caps & SDHCI_CLOCK_BASE_MASK) >>
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
SDHCI_CLOCK_BASE_SHIFT;
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
host->max_clk *= 1000000;
mmc: sdhci: Fix maximum clock for programmable clock mode In the programmable clock mode, the SDCLK frequency is incorrectly assigned when the maximum clock has been assigned during probe, this causes the SDHCI not work well. In the programmable clock mode, when calculating the SDCLK Frequency Select, when the maximum clock has been assigned, it is the actual value, should not be multiplied by host->clk_mul. Otherwise, the maximum clock is multiplied host->clk_mul by the base clock achieved from the BASECLKF field of the Capabilities 0 Register. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2017-04-26 01:32:30 +00:00
if (host->clk_mul)
host->max_clk *= host->clk_mul;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
if (host->max_clk == 0) {
mmc: sdhci: move error message to more relevant place "Hardware doesn't specify base clock frequency" may not be only the error case of sdhci_setup_cfg(). It is better to print this where the corresponding error is triggered. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:35 +00:00
printf("%s: Hardware doesn't specify base clock frequency\n",
__func__);
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
return -EINVAL;
mmc: sdhci: move error message to more relevant place "Hardware doesn't specify base clock frequency" may not be only the error case of sdhci_setup_cfg(). It is better to print this where the corresponding error is triggered. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:35 +00:00
}
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
if (f_max && (f_max < host->max_clk))
cfg->f_max = f_max;
else
cfg->f_max = host->max_clk;
if (f_min)
cfg->f_min = f_min;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
else {
mmc: sdhci: remove the unnecessary arguments for sdhci_setup_cfg Some arguments don't need to pass to sdhci_setup_cfg. Generic variable can be used in sdhci_setup_cfg, and some arguments are already included in sdhci_host struct. It's enough that just pass the board specific things to sdhci_setup_cfg(). After removing the unnecessary arguments, it's more simpler than before. It doesn't consider "Version" and "Capabilities" anymore in each SoC driver. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-26 10:06:24 +00:00
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300)
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->f_min = cfg->f_max / SDHCI_MAX_DIV_SPEC_300;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
else
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->f_min = cfg->f_max / SDHCI_MAX_DIV_SPEC_200;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
}
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->voltages = 0;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if (caps & SDHCI_CAN_VDD_330)
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->voltages |= MMC_VDD_32_33 | MMC_VDD_33_34;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if (caps & SDHCI_CAN_VDD_300)
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->voltages |= MMC_VDD_29_30 | MMC_VDD_30_31;
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
if (caps & SDHCI_CAN_VDD_180)
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->voltages |= MMC_VDD_165_195;
mmc: add the quirk to use the sdhci for samsung-soc To support the Samsung-SoC, added the basically functions. Samsung-SoC didn't used the SDHCI_CTRL_HISPD. And added set_control_reg callback for s3c64xx. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Lei Wen<leiwen@marvell.com>
2012-04-23 02:36:26 +00:00
mmc: sdhci: move broken voltage quirk handling to sdhci_setup_cfg() If CONFIG_BLK is enabled, add_sdhci() is never called. Move this quirk handling to sdhci_setup_cfg(), which is now the central place for hardware capability checks. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:36 +00:00
if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
cfg->voltages |= host->voltages;
mmc: sdhci: do not overwrite host_caps in sdhci_setup_cfg() This line overwrites host_cap that has been set by drivers and/or helpers like mmc_of_parse(). Accumulate capabilities flags. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-29 17:00:08 +00:00
cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
mmc: sdhci: combine the Host controller v3.0 feature into one condition It doesn't need to seperate the condition. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-30 06:30:21 +00:00
/* Since Host Controller Version3.0 */
mmc: sdhci: remove the unnecessary arguments for sdhci_setup_cfg Some arguments don't need to pass to sdhci_setup_cfg. Generic variable can be used in sdhci_setup_cfg, and some arguments are already included in sdhci_host struct. It's enough that just pass the board specific things to sdhci_setup_cfg(). After removing the unnecessary arguments, it's more simpler than before. It doesn't consider "Version" and "Capabilities" anymore in each SoC driver. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-26 10:06:24 +00:00
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
mmc: sdhci: disable the 8bit mode when host doesn't support it Buswidth is depeneded on Hardware schematic. Evne though host can support the 8bit buswidth, if hardware doesn't support 8bit mode, it doesn't work fine. So the buswidth mode selection leaves a matter in each SoC drivers. On the contrary to this, hardware supports 8bit mode, but host doesn't support it. then controller has to disable the MMC_MODE_8BIT. (Host can check whether 8bit mode is supported or not, since V3.0) Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2016-12-30 06:30:11 +00:00
if (!(caps & SDHCI_CAN_DO_8BIT))
cfg->host_caps &= ~MMC_MODE_8BIT;
mmc: sdhci: Enable 8-bit bus width only for 3.0 spec onwards CAP register don't have any information for 8-bit buswidth support on 2.0 sdhci spec, only from 3.0 onwards bit[18] got this information. Due to this misassignment in sdhci, mmc is setting 8-bit buswidth using mmc_set_bus_width even if controller doesn't support. Below change has code information. "mmc: Properly determine maximum supported bus width" (sha1: 7798f6dbd5e1a3030ed81a81da5dfb57c3307cac) Bug log: <mmc plus and emmc cards) ------- zynq-uboot> mmcinfo Error detected in status(0x208100)! Device: zynq_sdhci Manufacturer ID: fe ..... So enable 8-bit support only for 3.0 spec using CAP and for below 3.0 assign mmc->host_caps = MMC_MODE_8BIT on respective platform driver if host have a support. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-05-21 09:31:36 +00:00
}
mmc: sdhci: Clear high speed if not supported Clear high speed bit if it was not supported by the driver. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Emil Lenchak <emill@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-01-12 09:42:15 +00:00
mmc: sdhci: add SDHCI_QUIRK_BROKEN_HISPD_MODE Some IP-core implementations of the SDHCI have different troubles on the silicon where they are placed. On ZYNQ platform for example Xilinx doesn't accept the hold timing of an eMMC chip which operates in High-Speed mode and must be forced to operate in non high-speed mode. To get rid of this "SDHCI_QUIRK_BROKEN_HISPD_MODE" is introduced. For more details about this refer to the Xilinx answer-recor #59999 https://www.xilinx.com/support/answers/59999.html This commit: - doesn't set HISPD bit on the host-conroller - reflects this fact within the host-controller capabilities Upon this the layer above (mmc-driver) can setup the card correctly. Otherwise the MMC card will be switched into high-speed mode and causes possible timing violation on the host-controller side. Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at> Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2018-03-07 07:00:56 +00:00
if (host->quirks & SDHCI_QUIRK_BROKEN_HISPD_MODE) {
cfg->host_caps &= ~MMC_MODE_HS;
cfg->host_caps &= ~MMC_MODE_HS_52MHz;
}
mmc: sdhci: Read capabilities register1 and update host caps This patch reads the capabilities register1 and update the host caps accordingly for mmc layer usage. This patch mainly reads for UHS capabilities inorder to support SD3.0. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-19 07:07:08 +00:00
if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300)
caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
if (!(cfg->voltages & MMC_VDD_165_195) ||
(host->quirks & SDHCI_QUIRK_NO_1_8_V))
caps_1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 |
SDHCI_SUPPORT_DDR50);
if (caps_1 & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 |
SDHCI_SUPPORT_DDR50))
cfg->host_caps |= MMC_CAP(UHS_SDR12) | MMC_CAP(UHS_SDR25);
if (caps_1 & SDHCI_SUPPORT_SDR104) {
cfg->host_caps |= MMC_CAP(UHS_SDR104) | MMC_CAP(UHS_SDR50);
/*
* SD3.0: SDR104 is supported so (for eMMC) the caps2
* field can be promoted to support HS200.
*/
cfg->host_caps |= MMC_CAP(MMC_HS_200);
} else if (caps_1 & SDHCI_SUPPORT_SDR50) {
cfg->host_caps |= MMC_CAP(UHS_SDR50);
}
if (caps_1 & SDHCI_SUPPORT_DDR50)
cfg->host_caps |= MMC_CAP(UHS_DDR50);
mmc: sdhci: remove the unnecessary arguments for sdhci_setup_cfg Some arguments don't need to pass to sdhci_setup_cfg. Generic variable can be used in sdhci_setup_cfg, and some arguments are already included in sdhci_host struct. It's enough that just pass the board specific things to sdhci_setup_cfg(). After removing the unnecessary arguments, it's more simpler than before. It doesn't consider "Version" and "Capabilities" anymore in each SoC driver. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-07-26 10:06:24 +00:00
if (host->host_caps)
cfg->host_caps |= host->host_caps;
mmc: sdhci: Clear high speed if not supported Clear high speed bit if it was not supported by the driver. Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Emil Lenchak <emill@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-01-12 09:42:15 +00:00
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
return 0;
}
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
#ifdef CONFIG_BLK
int sdhci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg)
{
return mmc_bind(dev, mmc, cfg);
}
#else
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
int add_sdhci(struct sdhci_host *host, u32 f_max, u32 f_min)
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
{
mmc: sdhci: move error message to more relevant place "Hardware doesn't specify base clock frequency" may not be only the error case of sdhci_setup_cfg(). It is better to print this where the corresponding error is triggered. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:35 +00:00
int ret;
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency The sdhci controller assumes that the base clock frequency is fully supported by the peripheral and doesn't support hardware limitations. The Linux kernel distinguishes between base clock (max_clk) of the host controller and maximum frequency (f_max) of the card interface. Use the same differentiation and allow the platform to constrain the peripheral interface. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
2017-01-17 14:58:48 +00:00
ret = sdhci_setup_cfg(&host->cfg, host, f_max, f_min);
mmc: sdhci: move error message to more relevant place "Hardware doesn't specify base clock frequency" may not be only the error case of sdhci_setup_cfg(). It is better to print this where the corresponding error is triggered. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-08-25 07:07:35 +00:00
if (ret)
return ret;
dm: mmc: sdhci: Refactor configuration setup to support DM Move the configuration setting into a separate function which can be used by the driver-model code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:27 +00:00
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
host->mmc = mmc_create(&host->cfg, host);
if (host->mmc == NULL) {
printf("%s: mmc create fail!\n", __func__);
mmc: sdhci: use the generic error number Use the generic error number instead of meaningless value. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-25 23:10:02 +00:00
return -ENOMEM;
mmc: Split mmc struct, rework mmc initialization (v2) The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
2014-03-11 17:34:20 +00:00
}
MMC: add sdhci generic framework Nowdays, there are plenty of mmc driver in uboot adopt the sd standard host design, aka as sdhci. It is better to centralize the common logic together to better maintenance. Signed-off-by: Lei Wen <leiwen@marvell.com> Acked-by: Andy Fleming <afleming@freescale.com>
2011-06-28 21:50:06 +00:00
return 0;
}
dm: mmc: sdhci: Support CONFIG_BLK and CONFIG_DM_MMC_OPS Add support for using driver model for block devices and MMC operations in this driver. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-06-13 05:30:28 +00:00
#endif
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