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mmc: add the quirk to use the sdhci for samsung-soc

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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>
This commit is contained in:
Jaehoon Chung 2012-04-23 02:36:26 +00:00 committed by Andy Fleming
parent 3a6383207b
commit 236bfecff8
2 changed files with 18 additions and 0 deletions
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12
drivers/mmc/sdhci.c
View file

@ -337,6 +337,9 @@ void sdhci_set_ios(struct mmc *mmc)
u32 ctrl;
struct sdhci_host *host = (struct sdhci_host *)mmc->priv;
if (host->set_control_reg)
host->set_control_reg(host);
if (mmc->clock != host->clock)
sdhci_set_clock(mmc, mmc->clock);
@ -360,6 +363,9 @@ void sdhci_set_ios(struct mmc *mmc)
else
ctrl &= ~SDHCI_CTRL_HISPD;
if (host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)
ctrl &= ~SDHCI_CTRL_HISPD;
sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
}
@ -443,9 +449,15 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
mmc->voltages |= MMC_VDD_29_30 | MMC_VDD_30_31;
if (caps & SDHCI_CAN_VDD_180)
mmc->voltages |= MMC_VDD_165_195;
if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
mmc->voltages |= host->voltages;
mmc->host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
if (caps & SDHCI_CAN_DO_8BIT)
mmc->host_caps |= MMC_MODE_8BIT;
if (host->host_caps)
mmc->host_caps |= host->host_caps;
sdhci_reset(host, SDHCI_RESET_ALL);
mmc_register(mmc);

6
include/sdhci.h
View file

@ -217,6 +217,8 @@
#define SDHCI_QUIRK_32BIT_DMA_ADDR (1 << 0)
#define SDHCI_QUIRK_REG32_RW (1 << 1)
#define SDHCI_QUIRK_BROKEN_R1B (1 << 2)
#define SDHCI_QUIRK_NO_HISPD_BIT (1 << 3)
#define SDHCI_QUIRK_BROKEN_VOLTAGE (1 << 4)
/* to make gcc happy */
struct sdhci_host;
@ -241,10 +243,14 @@ struct sdhci_host {
char *name;
void *ioaddr;
unsigned int quirks;
unsigned int host_caps;
unsigned int version;
unsigned int clock;
struct mmc *mmc;
const struct sdhci_ops *ops;
void (*set_control_reg)(struct sdhci_host *host);
uint voltages;
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS