From 56e3df459abafdd9d00fcd0a8ddca7db4730874a Mon Sep 17 00:00:00 2001 From: Shaunak Saha Date: Tue, 24 Mar 2020 00:24:59 -0700 Subject: soc/intel/tgl: Synchronize GPIO ASL table with Linux kernel Kernel pinctrl driver changed for Tiger Lake and went to old scheme. Kernel patch: https://chromium-review.googlesource.com/c/chromiumos/ third_party/kernel/+/2116670 BUG=b:151683980 BRANCH=none TEST=Build and boot tgl board. In /sys/kernel/debug/pinctrl verify INTC34C5:00 listing all the pins. Cq-Depend:chromium:2116670 Change-Id: I9f1d399ff7380125ad5b935f9590a7d9cc442b04 Signed-off-by: Shaunak Saha Reviewed-on: https://review.coreboot.org/c/coreboot/+/39801 Reviewed-by: Furquan Shaikh Tested-by: build bot (Jenkins) --- src/soc/intel/tigerlake/acpi/gpio.asl | 96 ++++++++---------------------- src/soc/intel/tigerlake/gpio.c | 35 +++++++---- src/soc/intel/tigerlake/include/soc/gpio.h | 7 +-- 3 files changed, 49 insertions(+), 89 deletions(-) (limited to 'src/soc') diff --git a/src/soc/intel/tigerlake/acpi/gpio.asl b/src/soc/intel/tigerlake/acpi/gpio.asl index 9b8a175659..d1e4955e4a 100644 --- a/src/soc/intel/tigerlake/acpi/gpio.asl +++ b/src/soc/intel/tigerlake/acpi/gpio.asl @@ -1,103 +1,57 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* This file is part of the coreboot project. */ +#include #include +#include #include #include -#include -#include #include "gpio_op.asl" -Device (GCM0) +Device (GPIO) { - Name (_HID, CROS_GPIO_NAME) + Name (_HID, "INT34C5") Name (_UID, 0) - Name (_DDN, "GPIO Controller Community 0") + Name (_DDN, "GPIO Controller") Name (RBUF, ResourceTemplate() { - Memory32Fixed (ReadWrite, 0, GPIO_BASE_SIZE, COM0) + Memory32Fixed (ReadWrite, 0, 0, COM0) + Memory32Fixed (ReadWrite, 0, 0, COM1) + Memory32Fixed (ReadWrite, 0, 0, COM4) + Memory32Fixed (ReadWrite, 0, 0, COM5) Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ) { GPIO_IRQ14 } }) Method (_CRS, 0, NotSerialized) { + /* GPIO Community 0 */ CreateDWordField (^RBUF, ^COM0._BAS, BAS0) + CreateDWordField (^RBUF, ^COM0._LEN, LEN0) BAS0 = ^^PCRB (PID_GPIOCOM0) - Return (^RBUF) - } - Method (_STA) - { - Return (0xF) - } -} + LEN0 = GPIO_BASE_SIZE -Device (GCM1) -{ - Name (_HID, CROS_GPIO_NAME) - Name (_UID, 1) - Name (_DDN, "GPIO Controller Community 1") - - Name (RBUF, ResourceTemplate() - { - Memory32Fixed (ReadWrite, 0, GPIO_BASE_SIZE, COM1) - Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ) - { GPIO_IRQ14 } - }) - Method (_CRS, 0, NotSerialized) - { + /* GPIO Community 1 */ CreateDWordField (^RBUF, ^COM1._BAS, BAS1) + CreateDWordField (^RBUF, ^COM1._LEN, LEN1) BAS1 = ^^PCRB (PID_GPIOCOM1) - Return (^RBUF) - } - Method (_STA) - { - Return (0xF) - } -} + LEN1 = GPIO_BASE_SIZE -Device (GCM4) -{ - Name (_HID, CROS_GPIO_NAME) - Name (_UID, 4) - Name (_DDN, "GPIO Controller Community 4") - - Name (RBUF, ResourceTemplate() - { - Memory32Fixed (ReadWrite, 0, GPIO_BASE_SIZE, COM4) - Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ) - { GPIO_IRQ14 } - }) - Method (_CRS, 0, NotSerialized) - { + /* GPIO Community 4 */ CreateDWordField (^RBUF, ^COM4._BAS, BAS4) + CreateDWordField (^RBUF, ^COM4._LEN, LEN4) BAS4 = ^^PCRB (PID_GPIOCOM4) - Return (^RBUF) - } - Method (_STA) - { - Return (0xF) - } -} - -Device (GCM5) -{ - Name (_HID, CROS_GPIO_NAME) - Name (_UID, 5) - Name (_DDN, "GPIO Controller Community 5") + LEN4 = GPIO_BASE_SIZE - Name (RBUF, ResourceTemplate() - { - Memory32Fixed (ReadWrite, 0, GPIO_BASE_SIZE, COM5) - Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ) - { GPIO_IRQ14 } - }) - Method (_CRS, 0, NotSerialized) - { + /* GPIO Community 5 */ CreateDWordField (^RBUF, ^COM5._BAS, BAS5) + CreateDWordField (^RBUF, ^COM5._LEN, LEN5) BAS5 = ^^PCRB (PID_GPIOCOM5) - Return (^RBUF) + LEN5 = GPIO_BASE_SIZE + + Return (RBUF) } - Method (_STA) + + Method (_STA, 0, NotSerialized) { Return (0xF) } diff --git a/src/soc/intel/tigerlake/gpio.c b/src/soc/intel/tigerlake/gpio.c index cfdd0ac465..f96262a74e 100644 --- a/src/soc/intel/tigerlake/gpio.c +++ b/src/soc/intel/tigerlake/gpio.c @@ -37,21 +37,30 @@ static const struct reset_mapping rst_map_com2[] = { }; /* - * This layout matches the Linux kernel pinctrl map for TGL-LP at: + * The GPIO pinctrl driver for Tiger Lake on Linux expects 32 GPIOs per pad + * group, regardless of whether or not there is a physical pad for each + * exposed GPIO number. + * + * This results in the OS having a sparse GPIO map, and devices that need + * to export an ACPI GPIO must use the OS expected number. + * + * Not all pins are usable as GPIO and those groups do not have a pad base. + * + * This layout matches the Linux kernel pinctrl map for TGL at: * linux/drivers/pinctrl/intel/pinctrl-tigerlake.c */ static const struct pad_group tgl_community0_groups[] = { - INTEL_GPP(GPP_B0, GPP_B0, GPP_B25), /* GPP_B */ - INTEL_GPP(GPP_B0, GPP_T0, GPP_T15), /* GPP_T */ - INTEL_GPP(GPP_B0, GPP_A0, GPP_A24), /* GPP_A */ + INTEL_GPP_BASE(GPP_B0, GPP_B0, GPP_B25, 0), /* GPP_B */ + INTEL_GPP_BASE(GPP_B0, GPP_T0, GPP_T15, 32), /* GPP_T */ + INTEL_GPP_BASE(GPP_B0, GPP_A0, GPP_A24, 64), /* GPP_A */ }; static const struct pad_group tgl_community1_groups[] = { - INTEL_GPP(GPP_S0, GPP_S0, GPP_S7), /* GPP_S */ - INTEL_GPP(GPP_S0, GPP_H0, GPP_H23), /* GPP_H */ - INTEL_GPP(GPP_S0, GPP_D0, GPP_GSPI2_CLK_LOOPBK), /* GPP_D */ - INTEL_GPP(GPP_S0, GPP_U0, GPP_GSPI6_CLK_LOOPBK), /* GPP_U */ - INTEL_GPP(GPP_S0, CNV_BTEN, vI2S2_RXD), /* GPP_VGPIO */ + INTEL_GPP_BASE(GPP_S0, GPP_S0, GPP_S7, 96), /* GPP_S */ + INTEL_GPP_BASE(GPP_S0, GPP_H0, GPP_H23, 128), /* GPP_H */ + INTEL_GPP_BASE(GPP_S0, GPP_D0, GPP_GSPI2_CLK_LOOPBK, 160), /* GPP_D */ + INTEL_GPP_BASE(GPP_S0, GPP_U0, GPP_GSPI6_CLK_LOOPBK, 192), /* GPP_U */ + INTEL_GPP_BASE(GPP_S0, CNV_BTEN, vI2S2_RXD, 224), /* GPP_VGPIO */ }; /* This community is not visible to the OS */ @@ -60,15 +69,15 @@ static const struct pad_group tgl_community2_groups[] = { }; static const struct pad_group tgl_community4_groups[] = { - INTEL_GPP(GPP_C0, GPP_C0, GPP_C23), /* GPP_C */ - INTEL_GPP(GPP_C0, GPP_F0, GPP_F_CLK_LOOPBK), /* GPP_F */ + INTEL_GPP_BASE(GPP_C0, GPP_C0, GPP_C23, 256), /* GPP_C */ + INTEL_GPP_BASE(GPP_C0, GPP_F0, GPP_F_CLK_LOOPBK, 288), /* GPP_F */ INTEL_GPP(GPP_C0, GPP_L_BKLTEN, GPP_MLK_RSTB), /* GPP_HVCMOS */ - INTEL_GPP(GPP_C0, GPP_E0, GPP_E_CLK_LOOPBK), /* GPP_E */ + INTEL_GPP_BASE(GPP_C0, GPP_E0, GPP_E_CLK_LOOPBK, 320), /* GPP_E */ INTEL_GPP(GPP_C0, GPP_JTAG_TDO, GPP_DBG_PMODE), /* GPP_JTAG */ }; static const struct pad_group tgl_community5_groups[] = { - INTEL_GPP(GPP_R0, GPP_R0, GPP_R7), /* GPP_R */ + INTEL_GPP_BASE(GPP_R0, GPP_R0, GPP_R7, 352), /* GPP_R */ INTEL_GPP(GPP_R0, GPP_SPI_IO_2, GPP_CLK_LOOPBK), /* GPP_SPI */ }; diff --git a/src/soc/intel/tigerlake/include/soc/gpio.h b/src/soc/intel/tigerlake/include/soc/gpio.h index ccf6663865..0ac0033eff 100644 --- a/src/soc/intel/tigerlake/include/soc/gpio.h +++ b/src/soc/intel/tigerlake/include/soc/gpio.h @@ -7,10 +7,7 @@ #include #include -#define CROS_GPIO_NAME "INT34C5" -#define CROS_GPIO_COMM0_NAME "INT34C5:00" -#define CROS_GPIO_COMM1_NAME "INT34C5:01" -#define CROS_GPIO_COMM4_NAME "INT34C5:02" -#define CROS_GPIO_COMM5_NAME "INT34C5:03" + +#define CROS_GPIO_DEVICE_NAME "INT34C5:00" #endif -- cgit v1.2.3