diff options
Diffstat (limited to 'target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c')
| -rw-r--r-- | target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c b/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c index 04e4ef8..86116d6 100644 --- a/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c +++ b/target/linux/ifxmips/files/drivers/leds/leds-ifxmips.c @@ -37,6 +37,7 @@ #define DRVNAME "ifxmips_led" +/* might need to be changed depending on shift register used on the pcb */ #if 1 #define IFXMIPS_LED_CLK_EDGE IFXMIPS_LED_FALLING #else @@ -98,7 +99,8 @@ void ifxmips_led_setup_gpio(void) { int i = 0; - /* we need to setup pins SH,D,ST (4,5,6) */ + /* leds are controlled via a shift register + we need to setup pins SH,D,ST (4,5,6) to make it work */ for (i = 4; i < 7; i++) { ifxmips_port_set_altsel0(IFXMIPS_LED_GPIO_PORT, i); ifxmips_port_clear_altsel1(IFXMIPS_LED_GPIO_PORT, i); |