diff options
Diffstat (limited to 'board/altera/nios2-generic/gpio.c')
| -rw-r--r-- | board/altera/nios2-generic/gpio.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/board/altera/nios2-generic/gpio.c b/board/altera/nios2-generic/gpio.c index 8c639ce..4a30564 100644 --- a/board/altera/nios2-generic/gpio.c +++ b/board/altera/nios2-generic/gpio.c @@ -10,6 +10,7 @@ #ifndef CONFIG_SYS_GPIO_BASE #define ALTERA_PIO_BASE LED_PIO_BASE +#define ALTERA_PIO_WIDTH LED_PIO_WIDTH #define ALTERA_PIO_DATA (ALTERA_PIO_BASE + 0) #define ALTERA_PIO_DIR (ALTERA_PIO_BASE + 4) static u32 pio_data_reg; @@ -62,4 +63,9 @@ void gpio_set_value(unsigned gpio, int value) pio_data_reg &= ~mask; writel(pio_data_reg, ALTERA_PIO_DATA); } + +int gpio_is_valid(int number) +{ + return ((unsigned)number) < ALTERA_PIO_WIDTH; +} #endif |