[coreboot-gerrit] New patch to review for coreboot: google/oak: Configure SPI_LEVEL_ENABLE pin for rev5
Patrick Georgi (pgeorgi@google.com)
gerrit at coreboot.org
Tue Mar 8 22:35:15 CET 2016
Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13970
-gerrit
commit 6b534db3bc58698c37ed5736623094de59357008
Author: Yidi Lin <yidi.lin at mediatek.com>
Date: Mon Dec 28 16:14:42 2015 +0800
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 at chromium.org>
Original-Commit-Id: 030b478fedf046a7b818696779299c591415fcbd
Original-Change-Id: Ibff9705832700867279cb1b39b752b8f5f27cf33
Original-Signed-off-by: Yidi Lin <yidi.lin at mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/320026
Original-Reviewed-by: Julius Werner <jwerner at chromium.org>
---
src/mainboard/google/oak/bootblock.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/mainboard/google/oak/bootblock.c b/src/mainboard/google/oak/bootblock.c
index 49cf5dd..2c13b14 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);
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