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mb/google/soraka: configure WLAN_PE_RST gpio in early_gpio_table 

On shutdown, Soraka enters Deep S5 and not S5 state. Setting
pad reset config of a gpio to RSMRST will not preserve
the gpio config across deepSx and the gpio should be configured again.
The WLAN_PE_RST signal should be brought up early in the bootflow
for giving the device enough time to initialized before PCIE init in FSP-S.
Hence, the gpio WLAN_PE_RST (GPP_B8) pad configuration is done in
early pad configuration in bootblock also.

BUG=b:64386481
BRANCH=none
TEST= WiFi functionality across S5, S3, DeepS3, S0ix and warm/cold reboot.

Change-Id: I5c7a4a3871a3bff69c1136379c78a8368c6258a6
Signed-off-by: Divya Chellap <divya.chellappa@intel.com>
Reviewed-on: https://review.coreboot.org/22587
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
This commit is contained in:
Divya Chellap 2017-11-24 09:22:01 +05:30 committed by Subrata Banik
parent ec23f048d0
commit b96712dfd9
1 changed files with 2 additions and 0 deletions
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2
src/mainboard/google/poppy/variants/soraka/gpio.c
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@ -371,6 +371,8 @@ static const struct pad_config gpio_table[] = {
/* Early pad configuration in bootblock */
static const struct pad_config early_gpio_table[] = {
/* B8 : SRCCLKREQ3# ==> WLAN_PE_RST */
PAD_CFG_GPO(GPP_B8, 0, RSMRST),
#if IS_ENABLED(CONFIG_POPPY_USE_SPI_TPM)
/* B15 : GSPI0_CS# ==> PCH_SPI_H1_3V3_CS_L */
PAD_CFG_NF(GPP_B15, NONE, DEEP, NF1),