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nios2: add gpio_free 

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
This commit is contained in:
Thomas Chou 2010-12-24 15:19:44 +08:00 committed by Scott McNutt
parent 8d4addc3c3
commit e91d54535f
2 changed files with 11 additions and 0 deletions
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6
arch/nios2/include/asm/gpio.h
View File

@ -26,6 +26,11 @@ static inline int gpio_request(unsigned gpio, const char *label)
return 0;
}
static inline int gpio_free(unsigned gpio)
{
return 0;
}
static inline int gpio_direction_input(unsigned gpio)
{
writel(1, CONFIG_SYS_GPIO_BASE + (gpio << 2));
@ -49,6 +54,7 @@ static inline void gpio_set_value(unsigned gpio, int value)
}
#else
extern int gpio_request(unsigned gpio, const char *label);
extern int gpio_free(unsigned gpio);
extern int gpio_direction_input(unsigned gpio);
extern int gpio_direction_output(unsigned gpio, int value);
extern int gpio_get_value(unsigned gpio);

5
board/altera/nios2-generic/gpio.c
View File

@ -20,6 +20,11 @@ int gpio_request(unsigned gpio, const char *label)
return 0;
}
int gpio_free(unsigned gpio)
{
return 0;
}
int gpio_direction_input(unsigned gpio)
{
u32 mask = 1 << gpio;