src/soc/intel/xeon_sp/lbg/soc_gpio.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <gpio.h>
   4 #include <intelblocks/pcr.h>
   5 #include <soc/pcr_ids.h>
   6 #include <soc/pm.h>
   7
   8 /*
   9  * Reset mapping for Lewisburg PCH. See page 428, Intel Doc #336067-007US
  10  * 00 = RSMRST#
  11  * 01 = Host Deep Reset
  12  * 10 = PLTRST#
  13  * 11 = Reserved
  14  */
  15 static const struct reset_mapping rst_map[] = {
  16         { .logical = PAD_CFG0_LOGICAL_RESET_RSMRST, .chipset = 0U << 30 },
  17         { .logical = PAD_CFG0_LOGICAL_RESET_DEEP,   .chipset = 1U << 30 },
  18         { .logical = PAD_CFG0_LOGICAL_RESET_PLTRST, .chipset = 2U << 30 },
  19 };
  20
  21 static const struct pad_group lewisburg_community0_groups[] = {
  22         INTEL_GPP(GPP_A0, GPP_A0, GPP_A23), /* GPP A */
  23         INTEL_GPP(GPP_A0, GPP_B0, GPP_B23), /* GPP B */
  24         INTEL_GPP(GPP_A0, GPP_F0, GPP_F23), /* GPP F */
  25 };
  26
  27 static const struct pad_group lewisburg_community1_groups[] = {
  28         INTEL_GPP(GPP_C0, GPP_C0, GPP_C23), /* GPP C */
  29         INTEL_GPP(GPP_C0, GPP_D0, GPP_D23), /* GPP D */
  30         INTEL_GPP(GPP_C0, GPP_E0, GPP_E12), /* GPP E */
  31 };
  32
  33 static const struct pad_group lewisburg_community3_groups[] = {
  34         INTEL_GPP(GPP_I0, GPP_I0, GPP_I10), /* GPP I */
  35 };
  36
  37 static const struct pad_group lewisburg_community4_groups[] = {
  38         INTEL_GPP(GPP_J0, GPP_J0, GPP_J23), /* GPP F */
  39         INTEL_GPP(GPP_J0, GPP_K0, GPP_K10), /* GPP K */
  40 };
  41
  42 static const struct pad_group lewisburg_community5_groups[] = {
  43         INTEL_GPP(GPP_G0, GPP_G0, GPP_G23), /* GPP G */
  44         INTEL_GPP(GPP_G0, GPP_H0, GPP_H23), /* GPP H */
  45         INTEL_GPP(GPP_G0, GPP_L0, GPP_L19), /* GPP L */
  46 };
  47
  48 static const struct pad_group lewisburg_community2_groups[] = {
  49         INTEL_GPP(GPD0, GPD0, GPD11),       /* GPP GDP */
  50 };
  51
  52 static const struct pad_community lewisburg_gpio_communities[] = {
  53         [COMM_0] = { /* GPIO Community 0: GPP A, B, F */
  54                 .port               = PID_GPIOCOM0,
  55                 .first_pad          = GPP_A0,
  56                 .last_pad           = GPP_F23,
  57                 .num_gpi_regs       = NUM_GPIO_COM0_GPI_REGS,
  58                 .pad_cfg_base       = PAD_CFG_BASE,
  59                 .host_own_reg_0     = HOSTSW_OWN_REG_0,
  60                 .gpi_int_sts_reg_0  = GPI_INT_STS_0,
  61                 .gpi_int_en_reg_0   = GPI_INT_EN_0,
  62                 .gpi_smi_sts_reg_0  = GPI_SMI_STS_0,
  63                 .gpi_smi_en_reg_0   = GPI_SMI_EN_0,
  64                 .gpi_nmi_sts_reg_0  = GPI_NMI_STS_0,
  65                 .gpi_nmi_en_reg_0   = GPI_NMI_EN_0,
  66                 .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
  67                 .name               = "GPIO_COM0",
  68                 .acpi_path          = "\\_SB.PCI0.GPIO",
  69                 .reset_map          = rst_map,
  70                 .num_reset_vals     = ARRAY_SIZE(rst_map),
  71                 .groups             = lewisburg_community0_groups,
  72                 .num_groups         = ARRAY_SIZE(lewisburg_community0_groups),
  73         },
  74         [COMM_1] = { /* GPIO Community 1: GPP C, D, E */
  75                 .port               = PID_GPIOCOM1,
  76                 .first_pad          = GPP_C0,
  77                 .last_pad           = GPP_E12,
  78                 .num_gpi_regs       = NUM_GPIO_COM1_GPI_REGS,
  79                 .pad_cfg_base       = PAD_CFG_BASE,
  80                 .host_own_reg_0     = HOSTSW_OWN_REG_0,
  81                 .gpi_int_sts_reg_0  = GPI_INT_STS_0,
  82                 .gpi_int_en_reg_0   = GPI_INT_EN_0,
  83                 .gpi_smi_sts_reg_0  = GPI_SMI_STS_0,
  84                 .gpi_smi_en_reg_0   = GPI_SMI_EN_0,
  85                 .gpi_nmi_sts_reg_0  = GPI_NMI_STS_0,
  86                 .gpi_nmi_en_reg_0   = GPI_NMI_EN_0,
  87                 .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
  88                 .name               = "GPIO_COM1",
  89                 .acpi_path          = "\\_SB.PCI0.GPIO",
  90                 .reset_map          = rst_map,
  91                 .num_reset_vals     = ARRAY_SIZE(rst_map),
  92                 .groups             = lewisburg_community1_groups,
  93                 .num_groups         = ARRAY_SIZE(lewisburg_community1_groups),
  94         },
  95         [COMM_3] = { /* GPIO Community 3: GPP I */
  96                 .port               = PID_GPIOCOM3,
  97                 .first_pad          = GPP_I0,
  98                 .last_pad           = GPP_I10,
  99                 .num_gpi_regs       = NUM_GPIO_COM3_GPI_REGS,
 100                 .pad_cfg_base       = PAD_CFG_BASE,
 101                 .host_own_reg_0     = HOSTSW_OWN_REG_0,
 102                 .gpi_int_sts_reg_0  = GPI_INT_STS_0,
 103                 .gpi_int_en_reg_0   = GPI_INT_EN_0,
 104                 .gpi_smi_sts_reg_0  = GPI_SMI_STS_0,
 105                 .gpi_smi_en_reg_0   = GPI_SMI_EN_0,
 106                 .gpi_nmi_sts_reg_0  = GPI_NMI_STS_0,
 107                 .gpi_nmi_en_reg_0   = GPI_NMI_EN_0,
 108                 .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
 109                 .name               = "GPIO_COM3",
 110                 .acpi_path          = "\\_SB.PCI0.GPIO",
 111                 .reset_map          = rst_map,
 112                 .num_reset_vals     = ARRAY_SIZE(rst_map),
 113                 .groups             = lewisburg_community3_groups,
 114                 .num_groups         = ARRAY_SIZE(lewisburg_community3_groups),
 115         },
 116         [COMM_4] = { /* GPIO Community 4: GPP F, G */
 117                 .port               = PID_GPIOCOM4,
 118                 .first_pad          = GPP_J0,
 119                 .last_pad           = GPP_K10,
 120                 .num_gpi_regs       = NUM_GPIO_COM4_GPI_REGS,
 121                 .pad_cfg_base       = PAD_CFG_BASE,
 122                 .host_own_reg_0     = HOSTSW_OWN_REG_0,
 123                 .gpi_int_sts_reg_0  = GPI_INT_STS_0,
 124                 .gpi_int_en_reg_0   = GPI_INT_EN_0,
 125                 .gpi_smi_sts_reg_0  = GPI_SMI_STS_0,
 126                 .gpi_smi_en_reg_0   = GPI_SMI_EN_0,
 127                 .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
 128                 .name               = "GPIO_COM4",
 129                 .acpi_path          = "\\_SB.PCI0.GPIO",
 130                 .reset_map          = rst_map,
 131                 .num_reset_vals     = ARRAY_SIZE(rst_map),
 132                 .groups             = lewisburg_community4_groups,
 133                 .num_groups         = ARRAY_SIZE(lewisburg_community4_groups),
 134         },
 135         [COMM_5] = { /* GPIO Community 5: GPP G, H, L */
 136                 .port               = PID_GPIOCOM5,
 137                 .first_pad          = GPP_G0,
 138                 .last_pad           = GPP_L19,
 139                 .num_gpi_regs       = NUM_GPIO_COM5_GPI_REGS,
 140                 .pad_cfg_base       = PAD_CFG_BASE,
 141                 .host_own_reg_0     = HOSTSW_OWN_REG_0,
 142                 .gpi_int_sts_reg_0  = GPI_INT_STS_0,
 143                 .gpi_int_en_reg_0   = GPI_INT_EN_0,
 144                 .gpi_smi_sts_reg_0  = GPI_SMI_STS_0,
 145                 .gpi_smi_en_reg_0   = GPI_SMI_EN_0,
 146                 .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
 147                 .name               = "GPIO_COM5",
 148                 .acpi_path          = "\\_SB.PCI0.GPIO",
 149                 .reset_map          = rst_map,
 150                 .num_reset_vals     = ARRAY_SIZE(rst_map),
 151                 .groups             = lewisburg_community5_groups,
 152                 .num_groups         = ARRAY_SIZE(lewisburg_community5_groups),
 153         },
 154         [COMM_2] = { /* GPIO Community 2: GPD */
 155                 .port               = PID_GPIOCOM2,
 156                 .first_pad          = GPD0,
 157                 .last_pad           = GPD11,
 158                 .num_gpi_regs       = NUM_GPIO_COM2_GPI_REGS,
 159                 .pad_cfg_base       = PAD_CFG_BASE,
 160                 .host_own_reg_0     = HOSTSW_OWN_REG_0,
 161                 .gpi_int_sts_reg_0  = GPI_INT_STS_0,
 162                 .gpi_int_en_reg_0   = GPI_INT_EN_0,
 163                 .gpi_smi_sts_reg_0  = GPI_SMI_STS_0,
 164                 .gpi_smi_en_reg_0   = GPI_SMI_EN_0,
 165                 .max_pads_per_group = GPIO_MAX_NUM_PER_GROUP,
 166                 .name               = "GPIO_COM2",
 167                 .acpi_path          = "\\_SB.PCI0.GPIO",
 168                 .reset_map          = rst_map,
 169                 .num_reset_vals     = ARRAY_SIZE(rst_map),
 170                 .groups             = lewisburg_community2_groups,
 171                 .num_groups         = ARRAY_SIZE(lewisburg_community2_groups),
 172         }
 173 };
 174
 175 const struct pad_community *soc_gpio_get_community(size_t *num_communities)
 176 {
 177         *num_communities = ARRAY_SIZE(lewisburg_gpio_communities);
 178         return lewisburg_gpio_communities;
 179 }
 180
 181 const struct pmc_to_gpio_route *soc_pmc_gpio_routes(size_t *num)
 182 {
 183         static const struct pmc_to_gpio_route routes[] = {
 184                 { GPP_A, GPP_A },
 185                 { GPP_B, GPP_B },
 186                 { GPP_F, GPP_F },
 187                 { GPP_C, GPP_C },
 188                 { GPP_D, GPP_D },
 189                 { GPP_E, GPP_E },
 190                 { GPP_I, GPP_I },
 191                 { GPP_J, GPP_J },
 192                 { GPP_K, GPP_K },
 193                 { GPD,   GPD   },
 194         };
 195
 196         *num = ARRAY_SIZE(routes);
 197         return routes;
 198 }