diff options
Diffstat (limited to 'board/altera')
| -rw-r--r-- | board/altera/nios2-generic/custom_fpga.h | 1 | ||||
| -rw-r--r-- | board/altera/nios2-generic/gpio.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/board/altera/nios2-generic/custom_fpga.h b/board/altera/nios2-generic/custom_fpga.h index a11add5..f7f3853 100644 --- a/board/altera/nios2-generic/custom_fpga.h +++ b/board/altera/nios2-generic/custom_fpga.h @@ -50,6 +50,7 @@ /* led_pio.s1 is a altera_avalon_pio */ #define LED_PIO_BASE 0x82120870 +#define LED_PIO_WIDTH 8 /* high_res_timer.s1 is a altera_avalon_timer */ #define CONFIG_SYS_TIMER_BASE 0x82120820 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 |