coreboot-kgpe-d16/src/soc/intel/cannonlake/gpio.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2015 - 2017 Intel Corp.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <intelblocks/gpio.h>
#include <intelblocks/pcr.h>
#include <soc/pcr_ids.h>
#include <soc/pmc.h>

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_com0[] = {
	{ .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 },
};

static const struct pad_group cnl_community0_groups[] = {
	INTEL_GPP(GPP_A0, GPP_A0, GPIO_RSVD_0),		/* GPP_A */
	INTEL_GPP(GPP_A0, GPP_B0, GPIO_RSVD_2),		/* GPP_B */
	INTEL_GPP(GPP_A0, GPP_G0, GPP_G7),		/* GPP_G */
	INTEL_GPP(GPP_A0, GPIO_RSVD_3, GPIO_RSVD_11),	/* SPI */
};

static const struct pad_group cnl_community1_groups[] = {
	INTEL_GPP(GPP_D0, GPP_D0, GPIO_RSVD_12),	/* GPP_D */
	INTEL_GPP(GPP_D0, GPP_F0, GPP_F23),		/* GPP_F */
	INTEL_GPP(GPP_D0, GPP_H0, GPP_H23),		/* GPP_H */
	INTEL_GPP(GPP_D0, GPIO_RSVD_12, GPIO_RSVD_52),	/* VGPIO */
};

static const struct pad_group cnl_community2_groups[] = {
	INTEL_GPP(GPD0, GPD0, GPD11),			/* GPD */
};

static const struct pad_group cnl_community3_groups[] = {
	INTEL_GPP(HDA_BCLK, HDA_BCLK, SSP1_TXD),		/* AZA */
	INTEL_GPP(HDA_BCLK, GPIO_RSVD_68, GPIO_RSVD_78),	/* CPU */
};

static const struct pad_group cnl_community4_groups[] = {
	INTEL_GPP(GPP_C0, GPP_C0, GPP_C23),		/* GPP_C */
	INTEL_GPP(GPP_C0, GPP_E0, GPP_E23),		/* GPP_E */
	INTEL_GPP(GPP_C0, GPIO_RSVD_53, GPIO_RSVD_61),	/* JTAG */
	INTEL_GPP(GPP_C0, GPIO_RSVD_62, GPIO_RSVD_67),	/* HVMOS */
};

static const struct pad_community cnl_communities[] = {
	{ /* GPP A, B, G, SPI */
		.port = PID_GPIOCOM0,
		.first_pad = GPP_A0,
		.last_pad = GPIO_RSVD_11,
		.num_gpi_regs = NUM_GPIO_COM0_GPI_REGS,
		.pad_cfg_base = PAD_CFG_BASE,
		.host_own_reg_0 = HOSTSW_OWN_REG_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_ABG",
		.acpi_path = "\\_SB.PCI0.GPIO",
		.reset_map = rst_map_com0,
		.num_reset_vals = ARRAY_SIZE(rst_map_com0),
		.groups = cnl_community0_groups,
		.num_groups = ARRAY_SIZE(cnl_community0_groups),
	}, { /* GPP D, F, H, VGPIO */
		.port = PID_GPIOCOM1,
		.first_pad = GPP_D0,
		.last_pad = GPIO_RSVD_52,
		.num_gpi_regs = NUM_GPIO_COM1_GPI_REGS,
		.pad_cfg_base = PAD_CFG_BASE,
		.host_own_reg_0 = HOSTSW_OWN_REG_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_DFH",
		.acpi_path = "\\_SB.PCI0.GPIO",
		.reset_map = rst_map,
		.num_reset_vals = ARRAY_SIZE(rst_map),
		.groups = cnl_community1_groups,
		.num_groups = ARRAY_SIZE(cnl_community1_groups),
	}, { /* GPD */
		.port = PID_GPIOCOM2,
		.first_pad = GPD0,
		.last_pad = GPD11,
		.num_gpi_regs = NUM_GPIO_COM2_GPI_REGS,
		.pad_cfg_base = PAD_CFG_BASE,
		.host_own_reg_0 = HOSTSW_OWN_REG_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,
		.num_reset_vals = ARRAY_SIZE(rst_map),
		.groups = cnl_community2_groups,
		.num_groups = ARRAY_SIZE(cnl_community2_groups),
	}, { /* AZA, CPU */
		.port = PID_GPIOCOM3,
		.first_pad = HDA_BCLK,
		.last_pad = GPIO_RSVD_78,
		.num_gpi_regs = NUM_GPIO_COM3_GPI_REGS,
		.pad_cfg_base = PAD_CFG_BASE,
		.host_own_reg_0 = HOSTSW_OWN_REG_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 = "GP_AC",
		.acpi_path = "\\_SB.PCI0.GPIO",
		.reset_map = rst_map,
		.num_reset_vals = ARRAY_SIZE(rst_map),
		.groups = cnl_community3_groups,
		.num_groups = ARRAY_SIZE(cnl_community3_groups),
	}, { /* GPP C, E, JTAG, HVMOS */
		.port = PID_GPIOCOM4,
		.first_pad = GPP_C0,
		.last_pad = GPIO_RSVD_67,
		.num_gpi_regs = NUM_GPIO_COM4_GPI_REGS,
		.pad_cfg_base = PAD_CFG_BASE,
		.host_own_reg_0 = HOSTSW_OWN_REG_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_CEJ",
		.acpi_path = "\\_SB.PCI0.GPIO",
		.reset_map = rst_map,
		.num_reset_vals = ARRAY_SIZE(rst_map),
		.groups = cnl_community4_groups,
		.num_groups = ARRAY_SIZE(cnl_community4_groups),
	}
};

const struct pad_community *soc_gpio_get_community(size_t *num_communities)
{
	*num_communities = ARRAY_SIZE(cnl_communities);
	return cnl_communities;
}

const struct pmc_to_gpio_route *soc_pmc_gpio_routes(size_t *num)
{
	static const struct pmc_to_gpio_route routes[] = {
		{ PMC_GPP_A, GPP_A },
		{ PMC_GPP_B, GPP_B },
		{ PMC_GPP_C, GPP_C },
		{ PMC_GPP_D, GPP_D },
		{ PMC_GPP_E, GPP_E },
		{ PMC_GPP_F, GPP_F },
		{ PMC_GPP_G, GPP_G },
		{ PMC_GPP_H, GPP_H },
		{ PMC_GPD, GPD },
	};
	*num = ARRAY_SIZE(routes);
	return routes;
}