Without this, the GPIO_CNF register will not be programmed, and hence the GPIO signals will not reach the pins; the pinmux's configured function will be routed to the pins instead.
Signed-off-by: Stephen Warren swarren@nvidia.com --- board/nvidia/seaboard/seaboard.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c index bc67d0f..578d909 100644 --- a/board/nvidia/seaboard/seaboard.c +++ b/board/nvidia/seaboard/seaboard.c @@ -62,9 +62,11 @@ void gpio_config_uart(void) void gpio_config_mmc(void) { /* Set EN_VDDIO_SD (GPIO I6) */ + gpio_request(GPIO_PI6, "SDMMC4 power"); gpio_direction_output(GPIO_PI6, 1);
/* Config pin as GPI for Card Detect (GPIO I5) */ + gpio_request(GPIO_PI5, "SDMMC4 card detect"); gpio_direction_input(GPIO_PI5); }