gpio_glk.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#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_PWROK, .chipset = 0U << 30 },
        { .logical = PAD_CFG0_LOGICAL_RESET_DEEP, .chipset = 1U << 30 },
        { .logical = PAD_CFG0_LOGICAL_RESET_PLTRST, .chipset = 2U << 30 },
};
 
static const struct pad_group glk_community_audio_groups[] = {
        INTEL_GPP(AUDIO_OFFSET, AUDIO_OFFSET, GPIO_175),        /* AUDIO 0 */
};
 
static const struct pad_group glk_community_nw_groups[] = {
        INTEL_GPP(NW_OFFSET, NW_OFFSET, GPIO_31),       /* NORTHWEST 0 */
        INTEL_GPP(NW_OFFSET, GPIO_32, GPIO_63),         /* NORTHWEST 1 */
        INTEL_GPP(NW_OFFSET, GPIO_64, GPIO_214),        /* NORTHWEST 2 */
};
 
static const struct pad_group glk_community_scc_groups[] = {
        INTEL_GPP(SCC_OFFSET, SCC_OFFSET, GPIO_206),    /* SCC 0 */
        INTEL_GPP(SCC_OFFSET, GPIO_207, GPIO_209),      /* SCC 1 */
};
 
static const struct pad_group glk_community_n_groups[] = {
        INTEL_GPP(N_OFFSET, N_OFFSET, GPIO_107),        /* NORTH 0 */
        INTEL_GPP(N_OFFSET, GPIO_108, GPIO_139),        /* NORTH 1 */
        INTEL_GPP(N_OFFSET, GPIO_140, GPIO_155),        /* NORTH 2 */
};
 
static const struct pad_community glk_gpio_communities[] = {
        {
                .port = PID_GPIO_NW,
                .first_pad = NW_OFFSET,
                .last_pad = GPIO_214,
                .num_gpi_regs = NUM_NW_GPI_REGS,
                .gpi_status_offset = 0,
                .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 = "GPIO_NORTHWEST",
                .acpi_path = "\\_SB.GPO0",
                .reset_map = rst_map,
                .num_reset_vals = ARRAY_SIZE(rst_map),
                .groups = glk_community_nw_groups,
                .num_groups = ARRAY_SIZE(glk_community_nw_groups),
        }, {
                .port = PID_GPIO_N,
                .first_pad = N_OFFSET,
                .last_pad = GPIO_155,
                .num_gpi_regs = NUM_N_GPI_REGS,
                .gpi_status_offset = NUM_NW_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 = "GPIO_NORTH",
                .acpi_path = "\\_SB.GPO1",
                .reset_map = rst_map,
                .num_reset_vals = ARRAY_SIZE(rst_map),
                .groups = glk_community_n_groups,
                .num_groups = ARRAY_SIZE(glk_community_n_groups),
        }, {
                .port = PID_GPIO_AUDIO,
                .first_pad = AUDIO_OFFSET,
                .last_pad = GPIO_175,
                .num_gpi_regs = NUM_AUDIO_GPI_REGS,
                .gpi_status_offset = NUM_NW_GPI_REGS + NUM_N_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 = "GPIO_AUDIO",
                .acpi_path = "\\_SB.GPO2",
                .reset_map = rst_map,
                .num_reset_vals = ARRAY_SIZE(rst_map),
                .groups = glk_community_audio_groups,
                .num_groups = ARRAY_SIZE(glk_community_audio_groups),
        }, {
                .port = PID_GPIO_SCC,
                .first_pad = SCC_OFFSET,
                .last_pad = GPIO_209,
                .num_gpi_regs = NUM_SCC_GPI_REGS,
                .gpi_status_offset = NUM_NW_GPI_REGS + NUM_N_GPI_REGS +
                        NUM_AUDIO_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 = "GPIO_SCC",
                .acpi_path = "\\_SB.GPO3",
                .reset_map = rst_map,
                .num_reset_vals = ARRAY_SIZE(rst_map),
                .groups = glk_community_scc_groups,
                .num_groups = ARRAY_SIZE(glk_community_scc_groups),
        },
};
 
const struct pad_community *soc_gpio_get_community(size_t *num_communities)
{
        *num_communities = ARRAY_SIZE(glk_gpio_communities);
        return glk_gpio_communities;
}
 
const struct pmc_to_gpio_route *soc_pmc_gpio_routes(size_t *num)
{
        static const struct pmc_to_gpio_route routes[] = {
                { PMC_GPE_SCC_31_0, GPIO_GPE_SCC_31_0 },
                { PMC_GPE_SCC_63_32, GPIO_GPE_SCC_63_32 },
                { PMC_GPE_NW_31_0, GPIO_GPE_NW_31_0 },
                { PMC_GPE_NW_63_32, GPIO_GPE_NW_63_32 },
                { PMC_GPE_NW_95_64, GPIO_GPE_NW_95_64 },
                /*
                 * PMC_GPE_NW_127_96 maps to GPIO group 3, which is reserved and
                 * cannot be set in GPE0_DWx. Hence, it is skipped here.
                 */
                { PMC_GPE_N_31_0, GPIO_GPE_N_31_0 },
                { PMC_GPE_N_63_32, GPIO_GPE_N_63_32 },
                { PMC_GPE_N_95_64, GPIO_GPE_N_95_64 },
                { PMC_GPE_AUDIO_31_0, GPIO_GPE_AUDIO_31_0 },
        };
        *num = ARRAY_SIZE(routes);
        return routes;
}