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From ff76bba5543e580afac719ba6d55cea4b89b2364 Mon Sep 17 00:00:00 2001
From: Hustler One <nine-ball@tutanota.com>
Date: Wed, 10 Dec 2025 12:01:32 +0100
Subject: [PATCH 1/2] T480(s): enable TBT support
https://review.coreboot.org/c/coreboot/+/88490
---
src/mainboard/lenovo/sklkbl_thinkpad/Kconfig | 2 ++
src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/gpio.c | 8 ++++----
.../lenovo/sklkbl_thinkpad/variants/t480s/gpio.c | 8 ++++----
3 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig b/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig
index 6036ceb06d..e6fb950d66 100644
--- a/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig
+++ b/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig
@@ -26,12 +26,14 @@ config BOARD_LENOVO_SKLKBL_THINKPAD_COMMON
config BOARD_LENOVO_T480
bool
select BOARD_LENOVO_SKLKBL_THINKPAD_COMMON
+ select DRIVERS_INTEL_DTBT
select MEC1653_HAS_DEBUG_UNLOCK
select VARIANT_HAS_DGPU
config BOARD_LENOVO_T480S
bool
select BOARD_LENOVO_SKLKBL_THINKPAD_COMMON
+ select DRIVERS_INTEL_DTBT
select VARIANT_HAS_DGPU
if BOARD_LENOVO_SKLKBL_THINKPAD_COMMON
diff --git a/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/gpio.c b/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/gpio.c
index f337843fd9..2074b9d965 100644
--- a/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/gpio.c
+++ b/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/gpio.c
@@ -86,7 +86,7 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_C18, NONE),
PAD_NC(GPP_C19, NONE),
PAD_CFG_GPO(GPP_C20, 0, DEEP), /* EPRIVACY_ON */
- PAD_CFG_GPO(GPP_C21, 0, DEEP), /* TBT_FORCE_PWR */
+ PAD_CFG_GPO(GPP_C21, 1, PLTRST), /* TBT_FORCE_PWR */
PAD_CFG_GPI_SCI(GPP_C22, NONE, DEEP, EDGE_SINGLE, INVERT), /* -EC_SCI */
PAD_CFG_GPI_SCI(GPP_C23, NONE, DEEP, EDGE_SINGLE, INVERT), /* -EC_WAKE */
@@ -191,9 +191,9 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_G1, NONE),
PAD_NC(GPP_G2, NONE),
PAD_NC(GPP_G3, NONE),
- PAD_CFG_GPO(GPP_G4, 0, DEEP), /* TBT_RTD3_PWR_EN */
- PAD_CFG_GPO(GPP_G5, 0, DEEP), /* TBT_FORCE_USB_PWR */
- PAD_CFG_GPO(GPP_G6, 0, DEEP), /* -TBT_PERST */
+ PAD_CFG_GPO(GPP_G4, 1, PLTRST), /* TBT_RTD3_PWR_EN */
+ PAD_CFG_GPO(GPP_G5, 1, PLTRST), /* TBT_FORCE_USB_PWR */
+ PAD_CFG_GPO(GPP_G6, 1, PLTRST), /* -TBT_PERST */
PAD_CFG_GPI_SCI(GPP_G7, NONE, DEEP, LEVEL, INVERT), /* -TBT_PCIE_WAKE */
};
diff --git a/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/gpio.c b/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/gpio.c
index 4f1c57390d..c24c1abb07 100644
--- a/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/gpio.c
+++ b/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480s/gpio.c
@@ -82,7 +82,7 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_C18, NONE),
PAD_NC(GPP_C19, NONE),
PAD_CFG_GPO(GPP_C20, 0, DEEP), /* EPRIVACY_ON */
- PAD_CFG_GPO(GPP_C21, 0, DEEP), /* TBT_FORCE_PWR */
+ PAD_CFG_GPO(GPP_C21, 1, PLTRST), /* TBT_FORCE_PWR */
PAD_CFG_GPI_SCI(GPP_C22, NONE, DEEP, EDGE_SINGLE, INVERT), /* -EC_SCI */
PAD_CFG_GPI_SCI(GPP_C23, NONE, DEEP, EDGE_SINGLE, INVERT), /* -EC_WAKE */
@@ -187,9 +187,9 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_G1, NONE),
PAD_NC(GPP_G2, NONE),
PAD_NC(GPP_G3, NONE),
- PAD_CFG_GPO(GPP_G4, 0, DEEP), /* TBT_RTD3_PWR_EN */
- PAD_CFG_GPO(GPP_G5, 0, DEEP), /* TBT_FORCE_USB_PWR */
- PAD_CFG_GPO(GPP_G6, 0, DEEP), /* -TBT_PERST */
+ PAD_CFG_GPO(GPP_G4, 1, PLTRST), /* TBT_RTD3_PWR_EN */
+ PAD_CFG_GPO(GPP_G5, 1, PLTRST), /* TBT_FORCE_USB_PWR */
+ PAD_CFG_GPO(GPP_G6, 1, PLTRST), /* -TBT_PERST */
PAD_CFG_GPI_SCI(GPP_G7, NONE, DEEP, LEVEL, INVERT), /* -TBT_PCIE_WAKE */
};
--
2.51.2
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