Commit 798681bf authored by wanzongshun's avatar wanzongshun Committed by Russell King

ARM: 7158/1: add new MFP implement for NUC900

This patch is to add new MFP implement in mfp.c,since nuc900 mmc driver
needs this function support.
Signed-off-by: default avatarWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent a6dc5446
...@@ -19,6 +19,7 @@ ...@@ -19,6 +19,7 @@
extern void mfp_set_groupf(struct device *dev); extern void mfp_set_groupf(struct device *dev);
extern void mfp_set_groupc(struct device *dev); extern void mfp_set_groupc(struct device *dev);
extern void mfp_set_groupi(struct device *dev); extern void mfp_set_groupi(struct device *dev);
extern void mfp_set_groupg(struct device *dev); extern void mfp_set_groupg(struct device *dev, const char *subname);
extern void mfp_set_groupd(struct device *dev, const char *subname);
#endif /* __ASM_ARCH_MFP_H */ #endif /* __ASM_ARCH_MFP_H */
...@@ -14,7 +14,7 @@ ...@@ -14,7 +14,7 @@
#ifndef __ASM_ARCH_SPI_H #ifndef __ASM_ARCH_SPI_H
#define __ASM_ARCH_SPI_H #define __ASM_ARCH_SPI_H
extern void mfp_set_groupg(struct device *dev); extern void mfp_set_groupg(struct device *dev, const char *subname);
struct nuc900_spi_info { struct nuc900_spi_info {
unsigned int num_cs; unsigned int num_cs;
......
...@@ -26,10 +26,8 @@ ...@@ -26,10 +26,8 @@
#define REG_MFSEL (W90X900_VA_GCR + 0xC) #define REG_MFSEL (W90X900_VA_GCR + 0xC)
#define GPSELF (0x01 << 1) #define GPSELF (0x01 << 1)
#define GPSELC (0x03 << 2) #define GPSELC (0x03 << 2)
#define ENKPI (0x02 << 2) #define GPSELD (0x0f << 4)
#define ENNAND (0x01 << 2)
#define GPSELEI0 (0x01 << 26) #define GPSELEI0 (0x01 << 26)
#define GPSELEI1 (0x01 << 27) #define GPSELEI1 (0x01 << 27)
...@@ -37,11 +35,16 @@ ...@@ -37,11 +35,16 @@
#define GPIOG0TO1 (0x03 << 14) #define GPIOG0TO1 (0x03 << 14)
#define GPIOG2TO3 (0x03 << 16) #define GPIOG2TO3 (0x03 << 16)
#define GPIOG22TO23 (0x03 << 22) #define GPIOG22TO23 (0x03 << 22)
#define GPIOG18TO20 (0x07 << 18)
#define ENSPI (0x0a << 14) #define ENSPI (0x0a << 14)
#define ENI2C0 (0x01 << 14) #define ENI2C0 (0x01 << 14)
#define ENI2C1 (0x01 << 16) #define ENI2C1 (0x01 << 16)
#define ENAC97 (0x02 << 22) #define ENAC97 (0x02 << 22)
#define ENSD1 (0x02 << 18)
#define ENSD0 (0x0a << 4)
#define ENKPI (0x02 << 2)
#define ENNAND (0x01 << 2)
static DEFINE_MUTEX(mfp_mutex); static DEFINE_MUTEX(mfp_mutex);
...@@ -127,16 +130,19 @@ void mfp_set_groupi(struct device *dev) ...@@ -127,16 +130,19 @@ void mfp_set_groupi(struct device *dev)
} }
EXPORT_SYMBOL(mfp_set_groupi); EXPORT_SYMBOL(mfp_set_groupi);
void mfp_set_groupg(struct device *dev) void mfp_set_groupg(struct device *dev, const char *subname)
{ {
unsigned long mfpen; unsigned long mfpen;
const char *dev_id; const char *dev_id;
BUG_ON(!dev); BUG_ON((!dev) && (!subname));
mutex_lock(&mfp_mutex); mutex_lock(&mfp_mutex);
dev_id = dev_name(dev); if (subname != NULL)
dev_id = subname;
else
dev_id = dev_name(dev);
mfpen = __raw_readl(REG_MFSEL); mfpen = __raw_readl(REG_MFSEL);
...@@ -152,6 +158,9 @@ void mfp_set_groupg(struct device *dev) ...@@ -152,6 +158,9 @@ void mfp_set_groupg(struct device *dev)
} else if (strcmp(dev_id, "nuc900-audio") == 0) { } else if (strcmp(dev_id, "nuc900-audio") == 0) {
mfpen &= ~(GPIOG22TO23); mfpen &= ~(GPIOG22TO23);
mfpen |= ENAC97;/*enable AC97*/ mfpen |= ENAC97;/*enable AC97*/
} else if (strcmp(dev_id, "nuc900-mmc-port1") == 0) {
mfpen &= ~(GPIOG18TO20);
mfpen |= (ENSD1 | 0x01);/*enable sd1*/
} else { } else {
mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/ mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/
} }
...@@ -162,3 +171,30 @@ void mfp_set_groupg(struct device *dev) ...@@ -162,3 +171,30 @@ void mfp_set_groupg(struct device *dev)
} }
EXPORT_SYMBOL(mfp_set_groupg); EXPORT_SYMBOL(mfp_set_groupg);
void mfp_set_groupd(struct device *dev, const char *subname)
{
unsigned long mfpen;
const char *dev_id;
BUG_ON((!dev) && (!subname));
mutex_lock(&mfp_mutex);
if (subname != NULL)
dev_id = subname;
else
dev_id = dev_name(dev);
mfpen = __raw_readl(REG_MFSEL);
if (strcmp(dev_id, "nuc900-mmc-port0") == 0) {
mfpen &= ~GPSELD;/*enable sd0*/
mfpen |= ENSD0;
} else
mfpen &= (~GPSELD);
__raw_writel(mfpen, REG_MFSEL);
mutex_unlock(&mfp_mutex);
}
EXPORT_SYMBOL(mfp_set_groupd);
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment