GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mb/google/brya/var/nivviks: Disable LTE-related GPIOs based on fw_config 

If the LTE USB DB is not connected, disable the LTE-related GPIOs.

BUG=b:197479026
TEST=abuild -a -x -c max -p none -t google/brya -b nivviks

Signed-off-by: Reka Norman <rekanorman@google.com>
Change-Id: I86251d8ad58d82ff2112ac5f2dfafdabbff4c76f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61614
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
This commit is contained in:
Reka Norman 2022-02-04 11:17:32 +11:00 committed by Felix Held
parent 8d6ebe9d31
commit 457d98d130
2 changed files with 29 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/mainboard/google/brya/variants/nivviks/Makefile.inc
View File

@ -4,4 +4,5 @@ bootblock-y += gpio.c
romstage-y += gpio.c
romstage-y += memory.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
ramstage-y += gpio.c

28
src/mainboard/google/brya/variants/nivviks/fw_config.c Normal file
View File

@ -0,0 +1,28 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <baseboard/gpio.h>
#include <bootstate.h>
#include <console/console.h>
#include <fw_config.h>
static const struct pad_config lte_disable_pads[] = {
/* A8 : WWAN_RF_DISABLE_ODL */
PAD_NC(GPP_A8, NONE),
/* D6 : WWAN_EN */
PAD_NC(GPP_D6, NONE),
/* F12 : WWAN_RST_L */
PAD_NC(GPP_F12, NONE),
/* H19 : SOC_I2C_SUB_INT_ODL */
PAD_NC(GPP_H19, NONE),
/* H23 : WWAN_SAR_DETECT_ODL */
PAD_NC(GPP_H23, NONE),
};
static void fw_config_handle(void *unused)
{
if (!fw_config_probe(FW_CONFIG(DB_USB, DB_1C_LTE))) {
printk(BIOS_INFO, "Disable LTE-related GPIO pins.\n");
gpio_configure_pads(lte_disable_pads, ARRAY_SIZE(lte_disable_pads));
}
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);