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u-boot/board/freescale/mx53ard/mx53ard.c
Thierry Reding 314284b156 mmc: Change board_mmc_getcd() function prototype. 
The new API no longer uses the extra cd parameter that was used to store
the card presence state. Instead, this information is returned via the
function's return value. board_mmc_getcd() returns -1 to indicate that
no card-detection mechanism is implemented; 0 indicates that no card is
present and 1 is returned if it was detected that a card is present.

The rationale for this change can be found in the following email
thread:

	http://lists.denx.de/pipermail/u-boot/2011-November/110180.html

In summary, the old API was not consistent with the rest of the MMC API
which always passes a struct mmc as the first parameter. Furthermore the
cd parameter was used to mean "card absence" in some implementations and
"card presence" in others.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Jason Liu <jason.hui@linaro.org>
2012-01-08 21:28:27 -06:00

304 lines
8.6 KiB
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/*
* (C) Copyright 2011 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx5x_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/errno.h>
#include <netdev.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <asm/gpio.h>
#define ETHERNET_INT (1 * 32 + 31) /* GPIO2_31 */
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
u32 size1, size2;
size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
gd->ram_size = size1 + size2;
return 0;
}
void dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
}
static void setup_iomux_uart(void)
{
/* UART1 RXD */
mxc_request_iomux(MX53_PIN_ATA_DMACK, IOMUX_CONFIG_ALT3);
mxc_iomux_set_pad(MX53_PIN_ATA_DMACK,
PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
PAD_CTL_ODE_OPENDRAIN_ENABLE);
mxc_iomux_set_input(MX53_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, 0x3);
/* UART1 TXD */
mxc_request_iomux(MX53_PIN_ATA_DIOW, IOMUX_CONFIG_ALT3);
mxc_iomux_set_pad(MX53_PIN_ATA_DIOW,
PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
PAD_CTL_ODE_OPENDRAIN_ENABLE);
}
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[2] = {
{MMC_SDHC1_BASE_ADDR, 1 },
{MMC_SDHC2_BASE_ADDR, 1 },
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret;
mxc_request_iomux(MX53_PIN_GPIO_1, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX53_PIN_GPIO_4, IOMUX_CONFIG_ALT1);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
ret = !gpio_get_value(1); /* GPIO1_1 */
else
ret = !gpio_get_value(4); /* GPIO1_4 */
return ret;
}
int board_mmc_init(bd_t *bis)
{
u32 index;
s32 status = 0;
for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
switch (index) {
case 0:
mxc_request_iomux(MX53_PIN_SD1_CMD, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_CLK, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA0,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA1,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA2,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA3,
IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_SD1_CMD, 0x1E4);
mxc_iomux_set_pad(MX53_PIN_SD1_CLK, 0xD4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA0, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA1, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA2, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA3, 0x1D4);
break;
case 1:
mxc_request_iomux(MX53_PIN_SD2_CMD,
IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
mxc_request_iomux(MX53_PIN_SD2_CLK,
IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
mxc_request_iomux(MX53_PIN_SD2_DATA0,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD2_DATA1,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD2_DATA2,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD2_DATA3,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_ATA_DATA12,
IOMUX_CONFIG_ALT2);
mxc_request_iomux(MX53_PIN_ATA_DATA13,
IOMUX_CONFIG_ALT2);
mxc_request_iomux(MX53_PIN_ATA_DATA14,
IOMUX_CONFIG_ALT2);
mxc_request_iomux(MX53_PIN_ATA_DATA15,
IOMUX_CONFIG_ALT2);
mxc_iomux_set_pad(MX53_PIN_SD2_CMD, 0x1E4);
mxc_iomux_set_pad(MX53_PIN_SD2_CLK, 0xD4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA0, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA1, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA2, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA3, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA12, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA13, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA14, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA15, 0x1D4);
break;
default:
printf("Warning: you configured more ESDHC controller"
"(%d) as supported by the board(2)\n",
CONFIG_SYS_FSL_ESDHC_NUM);
return status;
}
status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
}
return status;
}
#endif
static void weim_smc911x_iomux(void)
{
/* ETHERNET_INT as GPIO2_31 */
mxc_request_iomux(MX53_PIN_EIM_EB3, IOMUX_CONFIG_ALT1);
gpio_direction_input(ETHERNET_INT);
/* Data bus */
mxc_request_iomux(MX53_PIN_EIM_D16, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D16, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D17, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D17, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D18, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D18, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D19, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D19, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D20, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D20, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D21, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D21, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D22, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D22, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D23, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D23, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D24, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D24, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D25, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D25, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D26, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D26, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D27, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D27, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D28, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D28, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D29, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D29, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D30, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D30, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D31, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D31, 0xA4);
/* Address lines */
mxc_request_iomux(MX53_PIN_EIM_DA0, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA0, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA1, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA1, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA2, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA2, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA3, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA3, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA4, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA4, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA5, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA5, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA6, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA6, 0xA4);
/* other EIM signals for ethernet */
mxc_request_iomux(MX53_PIN_EIM_OE, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_EIM_RW, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_EIM_CS1, IOMUX_CONFIG_ALT0);
}
static void weim_cs1_settings(void)
{
struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR;
writel(MX53ARD_CS1GCR1, &weim_regs->cs1gcr1);
writel(0x0, &weim_regs->cs1gcr2);
writel(MX53ARD_CS1RCR1, &weim_regs->cs1rcr1);
writel(MX53ARD_CS1RCR2, &weim_regs->cs1rcr2);
writel(MX53ARD_CS1WCR1, &weim_regs->cs1wcr1);
writel(0x0, &weim_regs->cs1wcr2);
writel(0x0, &weim_regs->wcr);
set_chipselect_size(CS0_64M_CS1_64M);
}
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
int board_eth_init(bd_t *bis)
{
int rc = 0;
weim_smc911x_iomux();
weim_cs1_settings();
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
return rc;
}
int checkboard(void)
{
puts("Board: MX53ARD\n");
return 0;
}
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