diff options
Diffstat (limited to 'config/coreboot/default/patches/0041-mb-lenovo-t480-s-Enable-TBT-support.patch')
| -rw-r--r-- | config/coreboot/default/patches/0041-mb-lenovo-t480-s-Enable-TBT-support.patch | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/config/coreboot/default/patches/0041-mb-lenovo-t480-s-Enable-TBT-support.patch b/config/coreboot/default/patches/0041-mb-lenovo-t480-s-Enable-TBT-support.patch new file mode 100644 index 00000000..77edba57 --- /dev/null +++ b/config/coreboot/default/patches/0041-mb-lenovo-t480-s-Enable-TBT-support.patch @@ -0,0 +1,117 @@ +From 890eafaa914317b2a67a4b0df9c3a5ea04d88f05 Mon Sep 17 00:00:00 2001 +From: Matt DeVillier <matt.devillier@gmail.com> +Date: Fri, 18 Jul 2025 14:24:05 -0500 +Subject: [PATCH 41/41] mb/lenovo/t480(s): Enable TBT support + +Select the discrete TBT controller driver, and configure the necessary +GPIOs for the Alpine Ridge TBT controller to be fully functional. +Update the documentation w/r/t TBT functionality. + +TEST=build/boot Lenovo T480, boot Linux, verify all TBT-related PCI +devices populated, lower USB-C port works for USB data and PCIe. + +Change-Id: Ie5586fa72ed6819b9d1c37373c21605d39bad7b4 +Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> +--- + Documentation/mainboard/lenovo/skylake.md | 3 +-- + 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 ++++---- + 4 files changed, 11 insertions(+), 10 deletions(-) + +diff --git a/Documentation/mainboard/lenovo/skylake.md b/Documentation/mainboard/lenovo/skylake.md +index 64e075e2cd..352d91b3ef 100644 +--- a/Documentation/mainboard/lenovo/skylake.md ++++ b/Documentation/mainboard/lenovo/skylake.md +@@ -193,8 +193,6 @@ binaries if only flashing the `bios` region. + + ## Known Issues + +-- Alpine Ridge Thunderbolt 3 controller does not work +- - Lower (right) USB-C port only works for charging/DP alt mode, not USB/PCIe data + - Some Fn+F{1-12} keys aren't handled correctly + - Nvidia dGPU is finicky + - Needs option ROM +@@ -206,6 +204,7 @@ binaries if only flashing the `bios` region. + + ## Verified Working + ++- Alpine Ridge Thunderbolt 3 controller + - Integrated graphics init with libgfxinit + - video output: internal (eDP), miniDP + - ACPI support +diff --git a/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig b/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig +index d69d94f638..c60b85af08 100644 +--- a/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig ++++ b/src/mainboard/lenovo/sklkbl_thinkpad/Kconfig +@@ -33,6 +33,7 @@ config BOARD_LENOVO_T480 + bool + select BOARD_LENOVO_SKLKBL_THINKPAD_COMMON + select SOC_INTEL_KABYLAKE ++ select DRIVERS_INTEL_DTBT + select MEC1653_HAS_DEBUG_UNLOCK + select VARIANT_HAS_DGPU + +@@ -40,6 +41,7 @@ config BOARD_LENOVO_T480S + bool + select BOARD_LENOVO_SKLKBL_THINKPAD_COMMON + select SOC_INTEL_KABYLAKE ++ select DRIVERS_INTEL_DTBT + select VARIANT_HAS_DGPU + + config BOARD_LENOVO_T580 +diff --git a/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/gpio.c b/src/mainboard/lenovo/sklkbl_thinkpad/variants/t480/gpio.c +index f337843fd9..ffd2841e49 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 */ + }; + +-- +2.47.3 + |