S3C2440 SD卡驱动

 

/*在Devs.c (arch\arm\plat-s3c24xx)

中添加*/

#include

#include

 

 /*SDI */

 

static struct resource s3c_sdi_resource[] = {

[0] = {

.start = S3C24XX_PA_SDI,

.end   = S3C24XX_PA_SDI + S3C24XX_SZ_SDI - 1,

.flags = IORESOURCE_MEM,

},

[1] = {

.start = IRQ_SDI,

.end   = IRQ_SDI,

.flags = IORESOURCE_IRQ,

}

 

};

 

struct platform_device s3c_device_sdi = {

.name                  = "s3c2410-sdi",

.id                  = -1,

.num_resources          = ARRAY_SIZE(s3c_sdi_resource),

.resource          = s3c_sdi_resource,

};

 

EXPORT_SYMBOL(s3c_device_sdi);

 

 

 

/*在Mach-smdk2440.c (arch\arm\mach-s3c2440)

中*/

static struct platform_device *s3c2440_devices[] __initdata = {

/*添加*/

&s3c_device_sdi,

};

 

s3c_device_sdi.dev.platform_data = &s3c2440_mmc_cfg;

 

 

之后会出现mmc0: error -110 whilst initialising SD card的错误

解决办法

S3cmci.c (drivers\mmc\host)

添加

#include

在 s3cmci_disable_irq(host, true);后

添加udelay(50);