1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * This file contains platform specific structure definitions 4 * and init function used by Cannon Lake Point PCH. 5 * 6 * Copyright (c) 2022, Intel Corporation. 7 * All Rights Reserved. 8 * 9 */ 10 11 #include "core.h" 12 13 /* Cannon Lake: PGD PFET Enable Ack Status Register(s) bitmap */ 14 const struct pmc_bit_map cnp_pfear_map[] = { 15 {"PMC", BIT(0)}, 16 {"OPI-DMI", BIT(1)}, 17 {"SPI/eSPI", BIT(2)}, 18 {"XHCI", BIT(3)}, 19 {"SPA", BIT(4)}, 20 {"SPB", BIT(5)}, 21 {"SPC", BIT(6)}, 22 {"GBE", BIT(7)}, 23 24 {"SATA", BIT(0)}, 25 {"HDA_PGD0", BIT(1)}, 26 {"HDA_PGD1", BIT(2)}, 27 {"HDA_PGD2", BIT(3)}, 28 {"HDA_PGD3", BIT(4)}, 29 {"SPD", BIT(5)}, 30 {"LPSS", BIT(6)}, 31 {"LPC", BIT(7)}, 32 33 {"SMB", BIT(0)}, 34 {"ISH", BIT(1)}, 35 {"P2SB", BIT(2)}, 36 {"NPK_VNN", BIT(3)}, 37 {"SDX", BIT(4)}, 38 {"SPE", BIT(5)}, 39 {"Fuse", BIT(6)}, 40 {"SBR8", BIT(7)}, 41 42 {"CSME_FSC", BIT(0)}, 43 {"USB3_OTG", BIT(1)}, 44 {"EXI", BIT(2)}, 45 {"CSE", BIT(3)}, 46 {"CSME_KVM", BIT(4)}, 47 {"CSME_PMT", BIT(5)}, 48 {"CSME_CLINK", BIT(6)}, 49 {"CSME_PTIO", BIT(7)}, 50 51 {"CSME_USBR", BIT(0)}, 52 {"CSME_SUSRAM", BIT(1)}, 53 {"CSME_SMT1", BIT(2)}, 54 {"CSME_SMT4", BIT(3)}, 55 {"CSME_SMS2", BIT(4)}, 56 {"CSME_SMS1", BIT(5)}, 57 {"CSME_RTC", BIT(6)}, 58 {"CSME_PSF", BIT(7)}, 59 60 {"SBR0", BIT(0)}, 61 {"SBR1", BIT(1)}, 62 {"SBR2", BIT(2)}, 63 {"SBR3", BIT(3)}, 64 {"SBR4", BIT(4)}, 65 {"SBR5", BIT(5)}, 66 {"CSME_PECI", BIT(6)}, 67 {"PSF1", BIT(7)}, 68 69 {"PSF2", BIT(0)}, 70 {"PSF3", BIT(1)}, 71 {"PSF4", BIT(2)}, 72 {"CNVI", BIT(3)}, 73 {"UFS0", BIT(4)}, 74 {"EMMC", BIT(5)}, 75 {"SPF", BIT(6)}, 76 {"SBR6", BIT(7)}, 77 78 {"SBR7", BIT(0)}, 79 {"NPK_AON", BIT(1)}, 80 {"HDA_PGD4", BIT(2)}, 81 {"HDA_PGD5", BIT(3)}, 82 {"HDA_PGD6", BIT(4)}, 83 {"PSF6", BIT(5)}, 84 {"PSF7", BIT(6)}, 85 {"PSF8", BIT(7)}, 86 {} 87 }; 88 89 const struct pmc_bit_map *ext_cnp_pfear_map[] = { 90 /* 91 * Check intel_pmc_core_ids[] users of cnp_reg_map for 92 * a list of core SoCs using this. 93 */ 94 cnp_pfear_map, 95 NULL 96 }; 97 98 const struct pmc_bit_map cnp_slps0_dbg0_map[] = { 99 {"AUDIO_D3", BIT(0)}, 100 {"OTG_D3", BIT(1)}, 101 {"XHCI_D3", BIT(2)}, 102 {"LPIO_D3", BIT(3)}, 103 {"SDX_D3", BIT(4)}, 104 {"SATA_D3", BIT(5)}, 105 {"UFS0_D3", BIT(6)}, 106 {"UFS1_D3", BIT(7)}, 107 {"EMMC_D3", BIT(8)}, 108 {} 109 }; 110 111 const struct pmc_bit_map cnp_slps0_dbg1_map[] = { 112 {"SDIO_PLL_OFF", BIT(0)}, 113 {"USB2_PLL_OFF", BIT(1)}, 114 {"AUDIO_PLL_OFF", BIT(2)}, 115 {"OC_PLL_OFF", BIT(3)}, 116 {"MAIN_PLL_OFF", BIT(4)}, 117 {"XOSC_OFF", BIT(5)}, 118 {"LPC_CLKS_GATED", BIT(6)}, 119 {"PCIE_CLKREQS_IDLE", BIT(7)}, 120 {"AUDIO_ROSC_OFF", BIT(8)}, 121 {"HPET_XOSC_CLK_REQ", BIT(9)}, 122 {"PMC_ROSC_SLOW_CLK", BIT(10)}, 123 {"AON2_ROSC_GATED", BIT(11)}, 124 {"CLKACKS_DEASSERTED", BIT(12)}, 125 {} 126 }; 127 128 const struct pmc_bit_map cnp_slps0_dbg2_map[] = { 129 {"MPHY_CORE_GATED", BIT(0)}, 130 {"CSME_GATED", BIT(1)}, 131 {"USB2_SUS_GATED", BIT(2)}, 132 {"DYN_FLEX_IO_IDLE", BIT(3)}, 133 {"GBE_NO_LINK", BIT(4)}, 134 {"THERM_SEN_DISABLED", BIT(5)}, 135 {"PCIE_LOW_POWER", BIT(6)}, 136 {"ISH_VNNAON_REQ_ACT", BIT(7)}, 137 {"ISH_VNN_REQ_ACT", BIT(8)}, 138 {"CNV_VNNAON_REQ_ACT", BIT(9)}, 139 {"CNV_VNN_REQ_ACT", BIT(10)}, 140 {"NPK_VNNON_REQ_ACT", BIT(11)}, 141 {"PMSYNC_STATE_IDLE", BIT(12)}, 142 {"ALST_GT_THRES", BIT(13)}, 143 {"PMC_ARC_PG_READY", BIT(14)}, 144 {} 145 }; 146 147 const struct pmc_bit_map *cnp_slps0_dbg_maps[] = { 148 cnp_slps0_dbg0_map, 149 cnp_slps0_dbg1_map, 150 cnp_slps0_dbg2_map, 151 NULL 152 }; 153 154 const struct pmc_bit_map cnp_ltr_show_map[] = { 155 {"SOUTHPORT_A", CNP_PMC_LTR_SPA}, 156 {"SOUTHPORT_B", CNP_PMC_LTR_SPB}, 157 {"SATA", CNP_PMC_LTR_SATA}, 158 {"GIGABIT_ETHERNET", CNP_PMC_LTR_GBE}, 159 {"XHCI", CNP_PMC_LTR_XHCI}, 160 {"Reserved", CNP_PMC_LTR_RESERVED}, 161 {"ME", CNP_PMC_LTR_ME}, 162 /* EVA is Enterprise Value Add, doesn't really exist on PCH */ 163 {"EVA", CNP_PMC_LTR_EVA}, 164 {"SOUTHPORT_C", CNP_PMC_LTR_SPC}, 165 {"HD_AUDIO", CNP_PMC_LTR_AZ}, 166 {"CNV", CNP_PMC_LTR_CNV}, 167 {"LPSS", CNP_PMC_LTR_LPSS}, 168 {"SOUTHPORT_D", CNP_PMC_LTR_SPD}, 169 {"SOUTHPORT_E", CNP_PMC_LTR_SPE}, 170 {"CAMERA", CNP_PMC_LTR_CAM}, 171 {"ESPI", CNP_PMC_LTR_ESPI}, 172 {"SCC", CNP_PMC_LTR_SCC}, 173 {"ISH", CNP_PMC_LTR_ISH}, 174 {"UFSX2", CNP_PMC_LTR_UFSX2}, 175 {"EMMC", CNP_PMC_LTR_EMMC}, 176 /* 177 * Check intel_pmc_core_ids[] users of cnp_reg_map for 178 * a list of core SoCs using this. 179 */ 180 {"WIGIG", ICL_PMC_LTR_WIGIG}, 181 {"THC0", TGL_PMC_LTR_THC0}, 182 {"THC1", TGL_PMC_LTR_THC1}, 183 /* Below two cannot be used for LTR_IGNORE */ 184 {"CURRENT_PLATFORM", CNP_PMC_LTR_CUR_PLT}, 185 {"AGGREGATED_SYSTEM", CNP_PMC_LTR_CUR_ASLT}, 186 {} 187 }; 188 189 const struct pmc_reg_map cnp_reg_map = { 190 .pfear_sts = ext_cnp_pfear_map, 191 .slp_s0_offset = CNP_PMC_SLP_S0_RES_COUNTER_OFFSET, 192 .slp_s0_res_counter_step = SPT_PMC_SLP_S0_RES_COUNTER_STEP, 193 .slps0_dbg_maps = cnp_slps0_dbg_maps, 194 .ltr_show_sts = cnp_ltr_show_map, 195 .msr_sts = msr_map, 196 .slps0_dbg_offset = CNP_PMC_SLPS0_DBG_OFFSET, 197 .ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET, 198 .regmap_length = CNP_PMC_MMIO_REG_LEN, 199 .ppfear0_offset = CNP_PMC_HOST_PPFEAR0A, 200 .ppfear_buckets = CNP_PPFEAR_NUM_ENTRIES, 201 .pm_cfg_offset = CNP_PMC_PM_CFG_OFFSET, 202 .pm_read_disable_bit = CNP_PMC_READ_DISABLE_BIT, 203 .ltr_ignore_max = CNP_NUM_IP_IGN_ALLOWED, 204 .etr3_offset = ETR3_OFFSET, 205 }; 206 207 void cnl_suspend(struct pmc_dev *pmcdev) 208 { 209 /* 210 * Due to a hardware limitation, the GBE LTR blocks PC10 211 * when a cable is attached. To unblock PC10 during suspend, 212 * tell the PMC to ignore it. 213 */ 214 pmc_core_send_ltr_ignore(pmcdev, 3, 1); 215 } 216 217 int cnl_resume(struct pmc_dev *pmcdev) 218 { 219 pmc_core_send_ltr_ignore(pmcdev, 3, 0); 220 221 return pmc_core_resume_common(pmcdev); 222 } 223 224 int cnp_core_init(struct pmc_dev *pmcdev) 225 { 226 struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN]; 227 int ret; 228 229 pmcdev->suspend = cnl_suspend; 230 pmcdev->resume = cnl_resume; 231 232 pmc->map = &cnp_reg_map; 233 ret = get_primary_reg_base(pmc); 234 if (ret) 235 return ret; 236 237 pmc_core_get_low_power_modes(pmcdev); 238 239 return 0; 240 } 241