diff options
Diffstat (limited to 'src/mainboard/google/nyan_big/boardid.c')
| -rw-r--r-- | src/mainboard/google/nyan_big/boardid.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/mainboard/google/nyan_big/boardid.c b/src/mainboard/google/nyan_big/boardid.c index f43e532c0a..23b1c6adff 100644 --- a/src/mainboard/google/nyan_big/boardid.c +++ b/src/mainboard/google/nyan_big/boardid.c @@ -19,6 +19,7 @@ #include <console/console.h> #include <soc/nvidia/tegra124/gpio.h> +#include <stdlib.h> #include "boardid.h" @@ -27,11 +28,17 @@ uint8_t board_id(void) static int id = -1; if (id < 0) { - id = gpio_get_in_value(GPIO(Q3)) << 0 | - gpio_get_in_value(GPIO(T1)) << 1 | - gpio_get_in_value(GPIO(X1)) << 2 | - gpio_get_in_value(GPIO(X4)) << 3; - printk(BIOS_SPEW, "Board ID: %#x.\n", id); + gpio_t gpio[] = {GPIO(Q3), GPIO(T1), GPIO(X1), GPIO(X4)}; + int value[ARRAY_SIZE(gpio)]; + + gpio_get_in_tristate_values(gpio, ARRAY_SIZE(gpio), value); + + /* A gpio state is encoded in every two-bit */ + id = value[0] << 0 | + value[1] << 2 | + value[2] << 4 | + value[3] << 6; + printk(BIOS_SPEW, "Board TRISTATE ID: %#x.\n", id); } return id; |