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ARM: MX3: add MMC suuport for lilly1131-db

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Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Daniel Mack 2009-05-20 19:54:36 +02:00 committed by Sascha Hauer
parent cbaa6ca1f5
commit d0b1eabc7b
1 changed files with 67 additions and 0 deletions
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67
arch/arm/mach-mx3/mx31lilly-db.c
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@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@ -37,6 +38,7 @@
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/board-mx31lilly.h>
#include <mach/mmc.h>
#include "devices.h"
@ -51,6 +53,12 @@ static unsigned int lilly_db_board_pins[] __initdata = {
MX31_PIN_RTS1__RTS1,
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
MX31_PIN_SD1_DATA3__SD1_DATA3,
MX31_PIN_SD1_DATA2__SD1_DATA2,
MX31_PIN_SD1_DATA1__SD1_DATA1,
MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK,
MX31_PIN_SD1_CMD__SD1_CMD,
};
/* UART */
@ -58,11 +66,70 @@ static struct imxuart_platform_data uart_pdata __initdata = {
.flags = IMXUART_HAVE_RTSCTS,
};
/* MMC support */
static int mxc_mmc1_get_ro(struct device *dev)
{
return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));
}
static int gpio_det, gpio_wp;
static int mxc_mmc1_init(struct device *dev,
irq_handler_t detect_irq, void *data)
{
int ret;
gpio_det = IOMUX_TO_GPIO(MX31_PIN_GPIO1_1);
gpio_wp = IOMUX_TO_GPIO(MX31_PIN_LCS0);
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_GPIO1_1), 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 mx31lilly_db_init(void)
{
mxc_iomux_setup_multiple_pins(lilly_db_board_pins,
ARRAY_SIZE(lilly_db_board_pins),
"development board pins");
mxc_register_device(&mxc_uart_device0, &uart_pdata);
mxc_register_device(&mxcsdhc_device0, &mmc_pdata);
}