diff options
| author | Yidi Lin <yidi.lin@mediatek.com> | 2015-12-28 16:14:42 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-03-12 09:07:21 +0100 |
| commit | 22d94ba8a2178b587660f75b221ec06dec776c34 (patch) | |
| tree | 8ca16ae5fa0f1d4c6d19c01d6e4c9fa5bce054a9 /src/mainboard/google/oak | |
| parent | e2979df3dfb80baa3cbfd41c50e34b74bc878845 (diff) | |
| download | coreboot-22d94ba8a2178b587660f75b221ec06dec776c34.tar.xz | |
google/oak: Configure SPI_LEVEL_ENABLE pin for rev5
Oak introduces a 1.8V to 3.3V level shifter for EC SPI bus after rev5.
BRANCH=none
BUG=none
TEST=emerge-oak coreboot
Change-Id: I71868b003fc71dee0532033299afc155a9fbec9c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 030b478fedf046a7b818696779299c591415fcbd
Original-Change-Id: Ibff9705832700867279cb1b39b752b8f5f27cf33
Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/320026
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/13970
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/mainboard/google/oak')
| -rw-r--r-- | src/mainboard/google/oak/bootblock.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mainboard/google/oak/bootblock.c b/src/mainboard/google/oak/bootblock.c index 49cf5ddf65..2c13b14720 100644 --- a/src/mainboard/google/oak/bootblock.c +++ b/src/mainboard/google/oak/bootblock.c @@ -17,6 +17,7 @@ #include <boardid.h> #include <bootblock_common.h> #include <delay.h> +#include <gpio.h> #include <soc/gpio.h> #include <soc/i2c.h> #include <soc/mt6391.h> @@ -79,6 +80,10 @@ void bootblock_mainboard_init(void) /* set nor related GPIO */ nor_set_gpio_pinmux(); + /* SPI_LEVEL_ENABLE: Enable 1.8V to 3.3V level shifter for EC SPI bus */ + if (board_id() > 4) + gpio_output(PAD_SRCLKENAI2, 1); + /* Init i2c bus 2 Timing register for TPM */ mtk_i2c_bus_init(CONFIG_DRIVER_TPM_I2C_BUS); |