diff options
| author | Vadim Bendebury <vbendeb@chromium.org> | 2016-03-28 00:44:54 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-05-09 08:45:55 +0200 |
| commit | 1e80ab341ad93a08b3bce11bcd10f3f9b9d7a6a1 (patch) | |
| tree | e4a3baa6c1a8e6817e2c20676b0d8dd579ebbe37 /src/mainboard | |
| parent | 19eb7509d380fd5d9e6d083ad0d2633820c8db4b (diff) | |
google/gru: power up SD card
Make sure SD card is powered up properly.
Please refer to TRM V0.3 Part1 Page 324 for sdmmc pinmux.
BRANCH=none
BUG=chrome-os-partner:51537
TEST=With other patches, boot into chromeos prompt
Change-Id: Ib53b05c1fce851ca7cbcc2207fce2dce3b1bfe9a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: d37e688a458749e331a50c2ebf2018cba6629823
Original-Change-Id: I9f67c0bc16ddefa5ebe52a10c6d9e54194828a89
Original-Signed-off-by: Lin Huang <hl@rock-chips.com>
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/337192
Reviewed-on: https://review.coreboot.org/14718
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/gru/mainboard.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/mainboard/google/gru/mainboard.c b/src/mainboard/google/gru/mainboard.c index 649f16296c..c24584e1b5 100644 --- a/src/mainboard/google/gru/mainboard.c +++ b/src/mainboard/google/gru/mainboard.c @@ -15,9 +15,22 @@ */ #include <device/device.h> +#include <gpio.h> +#include <soc/clock.h> +#include <soc/grf.h> + +static void configure_sdmmc(void) +{ + gpio_output(GPIO(4, D, 5), 1); /* SDMMC_PWR_EN */ + gpio_output(GPIO(2, A, 2), 1); /* SDMMC_SDIO_PWR_EN */ + gpio_input(GPIO(4, D, 2)); /* SDMMC_DET_L */ + gpio_output(GPIO(2, D, 4), 0); /* Keep the max voltage */ + write32(&rk3399_grf->iomux_sdmmc, IOMUX_SDMMC); +} static void mainboard_init(device_t dev) { + configure_sdmmc(); } static void mainboard_enable(device_t dev) |