Mirrors/u-boot
1
0
Fork 0
mirror of https://source.denx.de/u-boot/u-boot.git synced 2026-06-13 15:03:58 +03:00
Code Issues Packages Projects Releases Wiki Activity

i.MX31: add a simple gpio driver

Browse Source 
This is a minimal driver, so far only managing output. It will
be used by the mxc_spi.c driver.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Guennadi Liakhovetski
2009-02-07 01:18:07 +01:00
committed by Anatolij Gustschin
parent f9b6a1575d
commit b30de3cccf
3 changed files with 95 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
include/asm-arm/arch-mx31/mx31.h
View File

@@ -27,4 +27,24 @@
extern u32 mx31_get_ipg_clk(void);
extern void mx31_gpio_mux(unsigned long mode);
enum mx31_gpio_direction {
MX31_GPIO_DIRECTION_IN,
MX31_GPIO_DIRECTION_OUT,
};
#ifdef CONFIG_MX31_GPIO
extern int mx31_gpio_direction(unsigned int gpio,
enum mx31_gpio_direction direction);
extern void mx31_gpio_set(unsigned int gpio, unsigned int value);
#else
static inline int mx31_gpio_direction(unsigned int gpio,
enum mx31_gpio_direction direction)
{
return 1;
}
static inline void mx31_gpio_set(unsigned int gpio, unsigned int value)
{
}
#endif
#endif /* __ASM_ARCH_MX31_H */