diff options
3 files changed, 36 insertions, 1 deletions
diff --git a/src/mainboard/google/brya/variants/marasov/Makefile.inc b/src/mainboard/google/brya/variants/marasov/Makefile.inc index 139345f260..4d25f34ea1 100644 --- a/src/mainboard/google/brya/variants/marasov/Makefile.inc +++ b/src/mainboard/google/brya/variants/marasov/Makefile.inc @@ -2,6 +2,7 @@ bootblock-y += gpio.c romstage-y += gpio.c +ramstage-$(CONFIG_FW_CONFIG) += fw_config.c romstage-y += memory.c diff --git a/src/mainboard/google/brya/variants/marasov/fw_config.c b/src/mainboard/google/brya/variants/marasov/fw_config.c new file mode 100644 index 0000000000..73ae600df9 --- /dev/null +++ b/src/mainboard/google/brya/variants/marasov/fw_config.c @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <bootstate.h> +#include <console/console.h> +#include <fw_config.h> +#include <gpio.h> + +static const struct pad_config touch_enable_pads[] = { + /* C0 : SMBCLK ==> EN_PP3300_TCHSCR */ + PAD_CFG_GPO(GPP_C0, 1, DEEP), +}; + +static const struct pad_config touch_disable_pads[] = { + /* C0 : SMBCLK ==> NC */ + PAD_NC(GPP_C0, NONE), +}; + +static void fw_config_handle(void *unused) +{ + if (fw_config_probe(FW_CONFIG(TOUCH, TOUCH_ELAN0001))) { + printk(BIOS_INFO, "Configure Touch GPIO GPP_C0 to GPO_H.\n"); + gpio_configure_pads(touch_enable_pads, ARRAY_SIZE(touch_enable_pads)); + } else { + printk(BIOS_INFO, "Configure Touch GPIO GPP_C0 to NC.\n"); + gpio_configure_pads(touch_disable_pads, ARRAY_SIZE(touch_disable_pads)); + } +} +BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL); diff --git a/src/mainboard/google/brya/variants/marasov/overridetree.cb b/src/mainboard/google/brya/variants/marasov/overridetree.cb index bf9d5e037c..e90df9e8f0 100644 --- a/src/mainboard/google/brya/variants/marasov/overridetree.cb +++ b/src/mainboard/google/brya/variants/marasov/overridetree.cb @@ -12,6 +12,10 @@ fw_config option UFC_USB 0 option UFC_MIPI 1 end + field TOUCH 5 5 + option TOUCH_NONE 0 + option TOUCH_ELAN0001 1 + end field STORAGE 30 31 option STORAGE_UNKNOWN 0 option STORAGE_NVME 1 @@ -163,7 +167,9 @@ chip soc/intel/alderlake register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "stop_off_delay_ms" = "1" register "has_power_resource" = "1" - device i2c 10 on end + device i2c 10 on + probe TOUCH TOUCH_ELAN0001 + end end end #I2C3 device ref i2c5 on |