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/* This file is part of the coreboot project. */
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <intelblocks/gpio.h>
#include <intelblocks/pcr.h>
#include <soc/pcr_ids.h>
#include <soc/pmc.h>
/*
* This file is created based on Intel Tiger Lake Processor PCH Datasheet
* Document number: 575857
* Chapter number: 27
*/
static const struct reset_mapping rst_map[] = {
{ .logical = PAD_CFG0_LOGICAL_RESET_RSMRST, .chipset = 0U << 30 },
{ .logical = PAD_CFG0_LOGICAL_RESET_DEEP, .chipset = 1U << 30 },
{ .logical = PAD_CFG0_LOGICAL_RESET_PLTRST, .chipset = 2U << 30 },
};
static const struct reset_mapping rst_map_com2[] = {
{ .logical = PAD_CFG0_LOGICAL_RESET_PWROK, .chipset = 0U << 30 },
{ .logical = PAD_CFG0_LOGICAL_RESET_DEEP, .chipset = 1U << 30 },
{ .logical = PAD_CFG0_LOGICAL_RESET_PLTRST, .chipset = 2U << 30 },
{ .logical = PAD_CFG0_LOGICAL_RESET_RSMRST, .chipset = 3U << 30 },
};
/*
* 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_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_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 */
static const struct pad_group tgl_community2_groups[] = {
INTEL_GPP(GPD0, GPD0, GPD_DRAM_RESETB), /* GPD */
};
static const struct pad_group tgl_community4_groups[] = {
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_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_BASE(GPP_R0, GPP_R0, GPP_R7, 352), /* GPP_R */
INTEL_GPP(GPP_R0, GPP_SPI_IO_2, GPP_CLK_LOOPBK), /* GPP_SPI */
};
static const struct pad_community tgl_communities[] = {
[COMM_0] = { /* GPP B, T, A */
.port = PID_GPIOCOM0,
.first_pad = GPP_B0,
.last_pad = GPP_A24,
.num_gpi_regs = NUM_GPIO_COM0_GPI_REGS,
.pad_cfg_base = PAD_CFG_BASE,
.host_own_reg_0 = HOSTSW_OWN_REG_0,
.gpi_int_sts_reg_0 = GPI_INT_STS_0,
.gpi_int_en_reg_0 = GPI_INT_EN_0,
.gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
.gpi_smi_en_reg_0 = GPI_SMI_EN_0,
.max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
.name = "GPP_BTA",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map,
.num_reset_vals = ARRAY_SIZE(rst_map),
.groups = tgl_community0_groups,
.num_groups = ARRAY_SIZE(tgl_community0_groups),
},
[COMM_1] = { /* GPP S, D, H, U, VGPIO */
.port = PID_GPIOCOM1,
.first_pad = GPP_S0,
.last_pad = vI2S2_RXD,
.num_gpi_regs = NUM_GPIO_COM1_GPI_REGS,
.pad_cfg_base = PAD_CFG_BASE,
.host_own_reg_0 = HOSTSW_OWN_REG_0,
.gpi_int_sts_reg_0 = GPI_INT_STS_0,
.gpi_int_en_reg_0 = GPI_INT_EN_0,
.gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
.gpi_smi_en_reg_0 = GPI_SMI_EN_0,
.max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
.name = "GPP_SDHU",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map,
.num_reset_vals = ARRAY_SIZE(rst_map),
.groups = tgl_community1_groups,
.num_groups = ARRAY_SIZE(tgl_community1_groups),
},
[COMM_2] = { /* GPD */
.port = PID_GPIOCOM2,
.first_pad = GPD0,
.last_pad = GPD_DRAM_RESETB,
.num_gpi_regs = NUM_GPIO_COM2_GPI_REGS,
.pad_cfg_base = PAD_CFG_BASE,
.host_own_reg_0 = HOSTSW_OWN_REG_0,
.gpi_int_sts_reg_0 = GPI_INT_STS_0,
.gpi_int_en_reg_0 = GPI_INT_EN_0,
.gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
.gpi_smi_en_reg_0 = GPI_SMI_EN_0,
.max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
.name = "GPD",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map_com2,
.num_reset_vals = ARRAY_SIZE(rst_map_com2),
.groups = tgl_community2_groups,
.num_groups = ARRAY_SIZE(tgl_community2_groups),
},
[COMM_4] = { /* GPP F, C, HVCOS, E, JTAG */
.port = PID_GPIOCOM4,
.first_pad = GPP_C0,
.last_pad = GPP_DBG_PMODE,
.num_gpi_regs = NUM_GPIO_COM4_GPI_REGS,
.pad_cfg_base = PAD_CFG_BASE,
.host_own_reg_0 = HOSTSW_OWN_REG_0,
.gpi_int_sts_reg_0 = GPI_INT_STS_0,
.gpi_int_en_reg_0 = GPI_INT_EN_0,
.gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
.gpi_smi_en_reg_0 = GPI_SMI_EN_0,
.max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
.name = "GPP_FCE",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map,
.num_reset_vals = ARRAY_SIZE(rst_map),
.groups = tgl_community4_groups,
.num_groups = ARRAY_SIZE(tgl_community4_groups),
},
[COMM_5] = { /* GPP R, SPI */
.port = PID_GPIOCOM5,
.first_pad = GPP_R0,
.last_pad = GPP_CLK_LOOPBK,
.num_gpi_regs = NUM_GPIO_COM5_GPI_REGS,
.pad_cfg_base = PAD_CFG_BASE,
.host_own_reg_0 = HOSTSW_OWN_REG_0,
.gpi_int_sts_reg_0 = GPI_INT_STS_0,
.gpi_int_en_reg_0 = GPI_INT_EN_0,
.gpi_smi_sts_reg_0 = GPI_SMI_STS_0,
.gpi_smi_en_reg_0 = GPI_SMI_EN_0,
.max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
.name = "GPP_CPU_VBPIO",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map,
.num_reset_vals = ARRAY_SIZE(rst_map),
.groups = tgl_community5_groups,
.num_groups = ARRAY_SIZE(tgl_community5_groups),
}
};
const struct pad_community *soc_gpio_get_community(size_t *num_communities)
{
*num_communities = ARRAY_SIZE(tgl_communities);
return tgl_communities;
}
const struct pmc_to_gpio_route *soc_pmc_gpio_routes(size_t *num)
{
static const struct pmc_to_gpio_route routes[] = {
{ PMC_GPP_B, GPP_B },
{ PMC_GPP_T, GPP_T },
{ PMC_GPP_A, GPP_A },
{ PMC_GPP_R, GPP_R },
{ PMC_GPD, GPD },
{ PMC_GPP_S, GPP_S },
{ PMC_GPP_H, GPP_H },
{ PMC_GPP_D, GPP_D },
{ PMC_GPP_U, GPP_U },
{ PMC_GPP_F, GPP_F },
{ PMC_GPP_C, GPP_C },
{ PMC_GPP_E, GPP_E },
};
*num = ARRAY_SIZE(routes);
return routes;
}
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