/* 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> 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 }, }; /* * The GPIO driver for Cannonlake on Windows/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 CNL-LP at: * linux/drivers/pinctrl/intel/pinctrl-cannonlake.c */ static const struct pad_group cnl_community0_groups[] = { INTEL_GPP_BASE(GPP_A0, GPP_A0, ESPI_CLK_LOOPBK, 0), /* GPP_A */ INTEL_GPP_BASE(GPP_A0, GPP_B0, GSPI1_CLK_LOOPBK, 32), /* GPP_B */ INTEL_GPP_BASE(GPP_A0, GPP_G0, GPP_G7, 64), /* GPP_G */ INTEL_GPP(GPP_A0, SPI0_IO_2, SPI0_CLK_LOOPBK), /* SPI */ }; static const struct pad_group cnl_community1_groups[] = { INTEL_GPP_BASE(GPP_D0, GPP_D0, GSPI2_CLK_LOOPBK, 96), /* GPP_D */ INTEL_GPP_BASE(GPP_D0, GPP_F0, GPP_F23, 128), /* GPP_F */ INTEL_GPP_BASE(GPP_D0, GPP_H0, GPP_H23, 160), /* GPP_H */ INTEL_GPP_BASE(GPP_D0, CNV_BTEN, vSD3_CD_B, 192), /* VGPIO */ }; /* This community is not visible to the OS */ static const struct pad_group cnl_community2_groups[] = { INTEL_GPP(GPD0, GPD0, DRAM_RESET_B), /* GPD */ }; /* This community is not visible to the OS */ static const struct pad_group cnl_community3_groups[] = { INTEL_GPP(HDA_BCLK, HDA_BCLK, I2S1_TXD), /* AZA */ INTEL_GPP(HDA_BCLK, HDACPU_SDI, TRIGGER_OUT), /* CPU */ }; static const struct pad_group cnl_community4_groups[] = { INTEL_GPP_BASE(GPP_C0, GPP_C0, GPP_C23, 256), /* GPP_C */ INTEL_GPP_BASE(GPP_C0, GPP_E0, GPP_E23, 288), /* GPP_E */ INTEL_GPP(GPP_C0, PCH_TDO, ITP_PMODE), /* JTAG */ INTEL_GPP(GPP_C0, EDP_BKLTEN, CL_RST_B), /* HVMOS */ }; static const struct pad_community cnl_communities[TOTAL_GPIO_COMM] = { /* GPP A, B, G, SPI */ [COMM_0] = { .port = PID_GPIOCOM0, .first_pad = GPP_A0, .last_pad = SPI0_CLK_LOOPBK, .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, .gpi_nmi_sts_reg_0 = GPI_NMI_STS_0, .gpi_nmi_en_reg_0 = GPI_NMI_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 */ [COMM_1] = { .port = PID_GPIOCOM1, .first_pad = GPP_D0, .last_pad = vSD3_CD_B, .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, .gpi_nmi_sts_reg_0 = GPI_NMI_STS_0, .gpi_nmi_en_reg_0 = GPI_NMI_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 */ [COMM_2] = { .port = PID_GPIOCOM2, .first_pad = GPD0, .last_pad = DRAM_RESET_B, .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, .gpi_nmi_sts_reg_0 = GPI_NMI_STS_0, .gpi_nmi_en_reg_0 = GPI_NMI_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 */ [COMM_3] = { .port = PID_GPIOCOM3, .first_pad = HDA_BCLK, .last_pad = TRIGGER_OUT, .num_gpi_regs = NUM_GPIO_COM3_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, .gpi_nmi_sts_reg_0 = GPI_NMI_STS_0, .gpi_nmi_en_reg_0 = GPI_NMI_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 */ [COMM_4] = { .port = PID_GPIOCOM4, .first_pad = GPP_C0, .last_pad = CL_RST_B, .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, .gpi_nmi_sts_reg_0 = GPI_NMI_STS_0, .gpi_nmi_en_reg_0 = GPI_NMI_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; }