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yaml
---
r: 172490
b: refs/heads/master
c: 364cd54
h: refs/heads/master
v: v3
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Daniel Mack authored and Sascha Hauer committed Nov 19, 2009
1 parent b7edd8f commit a825acb
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2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: b7d91a62cb402a3d24a15dca9d2b0c309c4227b4
refs/heads/master: 364cd540f036f106d886a9c51ae05e9a9bacf051
70 changes: 70 additions & 0 deletions trunk/arch/arm/mach-mx3/mx31lite-db.c
Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/board-mx31lite.h>
#include <mach/mmc.h>

#include "devices.h"

Expand All @@ -61,11 +62,80 @@ static struct imxuart_platform_data uart_pdata __initdata = {
.flags = IMXUART_HAVE_RTSCTS,
};

/* MMC */

static int gpio_det, gpio_wp;

#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)

static int mxc_mmc1_get_ro(struct device *dev)
{
return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
}

static int mxc_mmc1_init(struct device *dev,
irq_handler_t detect_irq, void *data)
{
int ret;

gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1);
gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6);

mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);
mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);

ret = gpio_request(gpio_det, "MMC detect");
if (ret)
return ret;

ret = gpio_request(gpio_wp, "MMC w/p");
if (ret)
goto exit_free_det;

gpio_direction_input(gpio_det);
gpio_direction_input(gpio_wp);

ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), detect_irq,
IRQF_DISABLED | IRQF_TRIGGER_FALLING,
"MMC detect", data);
if (ret)
goto exit_free_wp;

return 0;

exit_free_wp:
gpio_free(gpio_wp);

exit_free_det:
gpio_free(gpio_det);

return ret;
}

static void mxc_mmc1_exit(struct device *dev, void *data)
{
gpio_free(gpio_det);
gpio_free(gpio_wp);
free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), data);
}

static struct imxmmc_platform_data mmc_pdata = {
.get_ro = mxc_mmc1_get_ro,
.init = mxc_mmc1_init,
.exit = mxc_mmc1_exit,
};

void __init mx31lite_db_init(void)
{
mxc_iomux_setup_multiple_pins(litekit_db_board_pins,
ARRAY_SIZE(litekit_db_board_pins),
"development board pins");
mxc_register_device(&mxc_uart_device0, &uart_pdata);
mxc_register_device(&mxcsdhc_device0, &mmc_pdata);
}

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