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mb/google/rex/var/karis: Disable stylus/FP module based on fw_config

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There are going to be skus without stylus and fingerprint module.
Disable stylus and fingerprint module based on fw_config.

BUG=b:290689824
TEST=emerge-rex coreboot

Change-Id: I047aae06c4a915d0392edc836757b882a261c178
Signed-off-by: Tyler Wang <tyler.wang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77647
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Tyler Wang
2023-09-05 14:21:19 +08:00
committed by Felix Held
parent c152006aa6
commit 77d8e0bec6
2 changed files with 46 additions and 2 deletions
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3
src/mainboard/google/rex/variants/karis/Makefile.inc
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@@ -1,7 +1,6 @@
## SPDX-License-Identifier: GPL-2.0-only
bootblock-y += gpio.c
romstage-y += gpio.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
ramstage-y += gpio.c

45
src/mainboard/google/rex/variants/karis/fw_config.c Normal file
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@@ -0,0 +1,45 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <baseboard/variants.h>
#include <bootstate.h>
#include <console/console.h>
#include <fw_config.h>
#include <gpio.h>
#define GPIO_PADBASED_OVERRIDE(b, a) gpio_padbased_override(b, a, ARRAY_SIZE(a))
static const struct pad_config fp_disable_pads[] = {
/* GPP_B11 : [] ==> EN_FP_PWR */
PAD_NC(GPP_B11, NONE),
/* GPP_C22 : [] ==> SOC_FP_BOOT0 */
PAD_NC(GPP_C22, NONE),
/* GPP_C23 : [] ==> FP_RST_ODL */
PAD_NC(GPP_C23, NONE),
/* GPP_E10 : [] ==> SOC_FPMCU_INT_L */
PAD_NC(GPP_E10, NONE),
/* GPP_F11 : GSP1_SOC_CLK_R */
PAD_NC(GPP_F11, NONE),
/* GPP_F12 : GSPI1_SOC_DO_FPMCU_DI_R */
PAD_NC(GPP_F12, NONE),
/* GPP_F13 : GSPI1_SOC_DI_FPMCU_DO_LS_R */
PAD_NC(GPP_F13, NONE),
/* GPP_F17 : [] ==> GSPI1_SOC_CS_L */
PAD_NC(GPP_F17, NONE),
};
static const struct pad_config stylus_disable_pads[] = {
/* GPP_E04 : SOC_PEN_DETECT */
PAD_NC(GPP_E04, NONE),
};
void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
{
if (fw_config_probe(FW_CONFIG(STYLUS, STYLUS_ABSENT))) {
printk(BIOS_INFO, "Configure GPIOs for no stylus.\n");
GPIO_PADBASED_OVERRIDE(padbased_table, stylus_disable_pads);
}
if (fw_config_probe(FW_CONFIG(FP_MCU, FP_ABSENT))) {
printk(BIOS_INFO, "Configure GPIOs for no FP module.\n");
GPIO_PADBASED_OVERRIDE(padbased_table, fp_disable_pads);
}
}