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MX27ADS: Add SDHC support 

Add SDHC support for MX27ADS board

Signed-off-by: Vladimir Barinov <vbarinov@embeddedalley.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Vladimir Barinov 2009-04-30 15:31:20 +04:00 committed by Sascha Hauer
parent 9366d8f67c
commit 60c24dc79f
1 changed files with 52 additions and 0 deletions
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52
arch/arm/mach-mx2/mx27ads.c
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@ -24,6 +24,7 @@
#include <linux/mtd/partitions.h> #include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h> #include <linux/mtd/physmap.h>
#include <linux/i2c.h> #include <linux/i2c.h>
#include <linux/irq.h>
#include <mach/common.h> #include <mach/common.h>
#include <mach/hardware.h> #include <mach/hardware.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
@ -37,6 +38,7 @@
#include <mach/mxc_nand.h> #include <mach/mxc_nand.h>
#include <mach/i2c.h> #include <mach/i2c.h>
#include <mach/imxfb.h> #include <mach/imxfb.h>
#include <mach/mmc.h>
#include "devices.h" #include "devices.h"
@ -123,6 +125,20 @@ static unsigned int mx27ads_pins[] = {
PA31_PF_OE_ACD, PA31_PF_OE_ACD,
/* OWIRE */ /* OWIRE */
PE16_AF_OWIRE, PE16_AF_OWIRE,
/* SDHC1*/
PE18_PF_SD1_D0,
PE19_PF_SD1_D1,
PE20_PF_SD1_D2,
PE21_PF_SD1_D3,
PE22_PF_SD1_CMD,
PE23_PF_SD1_CLK,
/* SDHC2*/
PB4_PF_SD2_D0,
PB5_PF_SD2_D1,
PB6_PF_SD2_D2,
PB7_PF_SD2_D3,
PB8_PF_SD2_CMD,
PB9_PF_SD2_CLK,
}; };
static struct mxc_nand_platform_data mx27ads_nand_board_info = { static struct mxc_nand_platform_data mx27ads_nand_board_info = {
@ -199,6 +215,40 @@ static struct imx_fb_platform_data mx27ads_fb_data = {
.lcd_power = lcd_power, .lcd_power = lcd_power,
}; };
static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING,
"sdhc1-card-detect", data);
}
static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING,
"sdhc2-card-detect", data);
}
static void mx27ads_sdhc1_exit(struct device *dev, void *data)
{
free_irq(IRQ_GPIOE(21), data);
}
static void mx27ads_sdhc2_exit(struct device *dev, void *data)
{
free_irq(IRQ_GPIOB(7), data);
}
static struct imxmmc_platform_data sdhc1_pdata = {
.init = mx27ads_sdhc1_init,
.exit = mx27ads_sdhc1_exit,
};
static struct imxmmc_platform_data sdhc2_pdata = {
.init = mx27ads_sdhc2_init,
.exit = mx27ads_sdhc2_exit,
};
static struct platform_device *platform_devices[] __initdata = { static struct platform_device *platform_devices[] __initdata = {
&mx27ads_nor_mtd_device, &mx27ads_nor_mtd_device,
&mxc_fec_device, &mxc_fec_device,
@ -239,6 +289,8 @@ static void __init mx27ads_board_init(void)
ARRAY_SIZE(mx27ads_i2c_devices)); ARRAY_SIZE(mx27ads_i2c_devices));
mxc_register_device(&mxc_i2c_device1, &mx27ads_i2c_data); mxc_register_device(&mxc_i2c_device1, &mx27ads_i2c_data);
mxc_register_device(&mxc_fb_device, &mx27ads_fb_data); mxc_register_device(&mxc_fb_device, &mx27ads_fb_data);
mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata);
mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata);
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
} }