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authorDivya Chellap <divya.chellappa@intel.com>2017-11-24 09:22:01 +0530
committerSubrata Banik <subrata.banik@intel.com>2017-11-28 05:37:16 +0000
commitb96712dfd9e99692804b4da01a4c543da2655f4c (patch)
tree47a9cf97abb90378d2fe8a7c4d48d3e95c42b8fa
parentec23f048d0056f432a74a1f6bc6be993a0ba4204 (diff)
downloadcoreboot-b96712dfd9e99692804b4da01a4c543da2655f4c.tar.xz
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>
-rw-r--r--src/mainboard/google/poppy/variants/soraka/gpio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/poppy/variants/soraka/gpio.c b/src/mainboard/google/poppy/variants/soraka/gpio.c
index 84a829447b..d861e59368 100644
--- a/src/mainboard/google/poppy/variants/soraka/gpio.c
+++ b/src/mainboard/google/poppy/variants/soraka/gpio.c
@@ -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),