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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2015 - 2017 Intel Corporation.
*
* 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; version 2 of the License.
*
* 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 <assert.h>
#include <intelblocks/gpio.h>
#include <intelblocks/pcr.h>
#include <soc/pcr_ids.h>
#include <soc/pm.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_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},
};
static const struct pad_group skl_community_com0_groups[] = {
INTEL_GPP(GPP_A0, GPP_A0, GPP_A23), /* GPP A */
INTEL_GPP(GPP_A0, GPP_B0, GPP_B23), /* GPP B */
};
static const struct pad_group skl_community_com1_groups[] = {
INTEL_GPP(GPP_C0, GPP_C0, GPP_C23), /* GPP C */
#if CONFIG(SKYLAKE_SOC_PCH_H)
INTEL_GPP(GPP_C0, GPP_D0, GPP_D23), /* GPP D */
INTEL_GPP(GPP_C0, GPP_E0, GPP_E12), /* GPP E */
INTEL_GPP(GPP_C0, GPP_F0, GPP_F23), /* GPP F */
INTEL_GPP(GPP_C0, GPP_G0, GPP_G23), /* GPP G */
INTEL_GPP(GPP_C0, GPP_H0, GPP_H23), /* GPP H */
#else
INTEL_GPP(GPP_C0, GPP_D0, GPP_D23), /* GPP D */
INTEL_GPP(GPP_C0, GPP_E0, GPP_E23), /* GPP E */
#endif
};
static const struct pad_group skl_community_com3_groups[] = {
#if CONFIG(SKYLAKE_SOC_PCH_H)
INTEL_GPP(GPP_I0, GPP_I0, GPP_I10), /* GPP I */
#else
INTEL_GPP(GPP_F0, GPP_F0, GPP_F23), /* GPP F */
INTEL_GPP(GPP_F0, GPP_G0, GPP_G7), /* GPP G */
#endif
};
static const struct pad_group skl_community_com2_groups[] = {
INTEL_GPP(GPD0, GPD0, GPD11), /* GPP GDP */
};
static const struct pad_community skl_gpio_communities[] = {
{
.port = PID_GPIOCOM0,
.first_pad = GPP_A0,
.last_pad = GPP_B23,
.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 = "GPIO_COM0",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map,
.num_reset_vals = ARRAY_SIZE(rst_map),
.groups = skl_community_com0_groups,
.num_groups = ARRAY_SIZE(skl_community_com0_groups),
}, {
.port = PID_GPIOCOM1,
.first_pad = GPP_C0,
#if CONFIG(SKYLAKE_SOC_PCH_H)
.last_pad = GPP_H23,
#else
.last_pad = GPP_E23,
#endif
.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 = "GPIO_COM1",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map,
.num_reset_vals = ARRAY_SIZE(rst_map),
.groups = skl_community_com1_groups,
.num_groups = ARRAY_SIZE(skl_community_com1_groups),
}, {
.port = PID_GPIOCOM3,
#if CONFIG(SKYLAKE_SOC_PCH_H)
.first_pad = GPP_I0,
.last_pad = GPP_I10,
#else
.first_pad = GPP_F0,
.last_pad = GPP_G7,
#endif
.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 = "GPIO_COM3",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map,
.num_reset_vals = ARRAY_SIZE(rst_map),
.groups = skl_community_com3_groups,
.num_groups = ARRAY_SIZE(skl_community_com3_groups),
}, {
.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 = "GPIO_COM2",
.acpi_path = "\\_SB.PCI0.GPIO",
.reset_map = rst_map_com2,
.num_reset_vals = ARRAY_SIZE(rst_map_com2),
.groups = skl_community_com2_groups,
.num_groups = ARRAY_SIZE(skl_community_com2_groups),
}
};
const struct pad_community *soc_gpio_get_community(size_t *num_communities)
{
*num_communities = ARRAY_SIZE(skl_gpio_communities);
return skl_gpio_communities;
}
const struct pmc_to_gpio_route *soc_pmc_gpio_routes(size_t *num)
{
static const struct pmc_to_gpio_route routes[] = {
{ GPP_A, GPP_A},
{ GPP_B, GPP_B},
{ GPP_C, GPP_C},
{ GPP_D, GPP_D},
{ GPP_E, GPP_E},
{ GPP_F, GPP_F},
{ GPP_G, GPP_G},
#if CONFIG(SKYLAKE_SOC_PCH_H)
{ GPP_H, GPP_H},
{ GPP_I, GPP_I},
#endif
{ GPD, GPD},
};
*num = ARRAY_SIZE(routes);
return routes;
}
uint32_t soc_gpio_pad_config_fixup(const struct pad_config *cfg,
int dw_reg, uint32_t reg_val)
{
if (CONFIG(SKYLAKE_SOC_PCH_H))
return reg_val;
/*
* For U/Y series, clear PAD_CFG1_TOL_1V8 in GPP_F4
* ~ GPP_F11.
*/
if (cfg->pad >= GPP_F4 && cfg->pad <= GPP_F11 && dw_reg == 1)
reg_val = reg_val & ~(PAD_CFG1_TOL_1V8);
return reg_val;
}
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