Quelle  spt.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * This file contains platform specific structure definitions
 * and init function used by Sunrise Point PCH.
 *
 * Copyright (c) 2022, Intel Corporation.
 * All Rights Reserved.
 *
 */

#include <linux/pci.h>

#include "core.h"

static const struct pmc_bit_map spt_pll_map[] = {
 {"MIPI PLL",   SPT_PMC_BIT_MPHY_CMN_LANE0},
 {"GEN2 USB2PCIE2 PLL",  SPT_PMC_BIT_MPHY_CMN_LANE1},
 {"DMIPCIE3 PLL",  SPT_PMC_BIT_MPHY_CMN_LANE2},
 {"SATA PLL",   SPT_PMC_BIT_MPHY_CMN_LANE3},
 {}
};

static const struct pmc_bit_map spt_mphy_map[] = {
 {"MPHY CORE LANE 0",           SPT_PMC_BIT_MPHY_LANE0},
 {"MPHY CORE LANE 1",           SPT_PMC_BIT_MPHY_LANE1},
 {"MPHY CORE LANE 2",           SPT_PMC_BIT_MPHY_LANE2},
 {"MPHY CORE LANE 3",           SPT_PMC_BIT_MPHY_LANE3},
 {"MPHY CORE LANE 4",           SPT_PMC_BIT_MPHY_LANE4},
 {"MPHY CORE LANE 5",           SPT_PMC_BIT_MPHY_LANE5},
 {"MPHY CORE LANE 6",           SPT_PMC_BIT_MPHY_LANE6},
 {"MPHY CORE LANE 7",           SPT_PMC_BIT_MPHY_LANE7},
 {"MPHY CORE LANE 8",           SPT_PMC_BIT_MPHY_LANE8},
 {"MPHY CORE LANE 9",           SPT_PMC_BIT_MPHY_LANE9},
 {"MPHY CORE LANE 10",          SPT_PMC_BIT_MPHY_LANE10},
 {"MPHY CORE LANE 11",          SPT_PMC_BIT_MPHY_LANE11},
 {"MPHY CORE LANE 12",          SPT_PMC_BIT_MPHY_LANE12},
 {"MPHY CORE LANE 13",          SPT_PMC_BIT_MPHY_LANE13},
 {"MPHY CORE LANE 14",          SPT_PMC_BIT_MPHY_LANE14},
 {"MPHY CORE LANE 15",          SPT_PMC_BIT_MPHY_LANE15},
 {}
};

static const struct pmc_bit_map spt_pfear_map[] = {
 {"PMC",    SPT_PMC_BIT_PMC},
 {"OPI-DMI",   SPT_PMC_BIT_OPI},
 {"SPI / eSPI",   SPT_PMC_BIT_SPI},
 {"XHCI",   SPT_PMC_BIT_XHCI},
 {"SPA",    SPT_PMC_BIT_SPA},
 {"SPB",    SPT_PMC_BIT_SPB},
 {"SPC",    SPT_PMC_BIT_SPC},
 {"GBE",    SPT_PMC_BIT_GBE},
 {"SATA",   SPT_PMC_BIT_SATA},
 {"HDA-PGD0",   SPT_PMC_BIT_HDA_PGD0},
 {"HDA-PGD1",   SPT_PMC_BIT_HDA_PGD1},
 {"HDA-PGD2",   SPT_PMC_BIT_HDA_PGD2},
 {"HDA-PGD3",   SPT_PMC_BIT_HDA_PGD3},
 {"RSVD",   SPT_PMC_BIT_RSVD_0B},
 {"LPSS",   SPT_PMC_BIT_LPSS},
 {"LPC",    SPT_PMC_BIT_LPC},
 {"SMB",    SPT_PMC_BIT_SMB},
 {"ISH",    SPT_PMC_BIT_ISH},
 {"P2SB",   SPT_PMC_BIT_P2SB},
 {"DFX",    SPT_PMC_BIT_DFX},
 {"SCC",    SPT_PMC_BIT_SCC},
 {"RSVD",   SPT_PMC_BIT_RSVD_0C},
 {"FUSE",   SPT_PMC_BIT_FUSE},
 {"CAMERA",   SPT_PMC_BIT_CAMREA},
 {"RSVD",   SPT_PMC_BIT_RSVD_0D},
 {"USB3-OTG",   SPT_PMC_BIT_USB3_OTG},
 {"EXI",    SPT_PMC_BIT_EXI},
 {"CSE",    SPT_PMC_BIT_CSE},
 {"CSME_KVM",   SPT_PMC_BIT_CSME_KVM},
 {"CSME_PMT",   SPT_PMC_BIT_CSME_PMT},
 {"CSME_CLINK",   SPT_PMC_BIT_CSME_CLINK},
 {"CSME_PTIO",   SPT_PMC_BIT_CSME_PTIO},
 {"CSME_USBR",   SPT_PMC_BIT_CSME_USBR},
 {"CSME_SUSRAM",   SPT_PMC_BIT_CSME_SUSRAM},
 {"CSME_SMT",   SPT_PMC_BIT_CSME_SMT},
 {"RSVD",   SPT_PMC_BIT_RSVD_1A},
 {"CSME_SMS2",   SPT_PMC_BIT_CSME_SMS2},
 {"CSME_SMS1",   SPT_PMC_BIT_CSME_SMS1},
 {"CSME_RTC",   SPT_PMC_BIT_CSME_RTC},
 {"CSME_PSF",   SPT_PMC_BIT_CSME_PSF},
 {}
};

static const struct pmc_bit_map *ext_spt_pfear_map[] = {
 /*
 * Check intel_pmc_core_ids[] users of spt_reg_map for
 * a list of core SoCs using this.
 */
 spt_pfear_map,
 NULL
};

static const struct pmc_bit_map spt_ltr_show_map[] = {
 {"SOUTHPORT_A",  SPT_PMC_LTR_SPA},
 {"SOUTHPORT_B",  SPT_PMC_LTR_SPB},
 {"SATA",  SPT_PMC_LTR_SATA},
 {"GIGABIT_ETHERNET", SPT_PMC_LTR_GBE},
 {"XHCI",  SPT_PMC_LTR_XHCI},
 {"Reserved",  SPT_PMC_LTR_RESERVED},
 {"ME",   SPT_PMC_LTR_ME},
 /* EVA is Enterprise Value Add, doesn't really exist on PCH */
 {"EVA",   SPT_PMC_LTR_EVA},
 {"SOUTHPORT_C",  SPT_PMC_LTR_SPC},
 {"HD_AUDIO",  SPT_PMC_LTR_AZ},
 {"LPSS",  SPT_PMC_LTR_LPSS},
 {"SOUTHPORT_D",  SPT_PMC_LTR_SPD},
 {"SOUTHPORT_E",  SPT_PMC_LTR_SPE},
 {"CAMERA",  SPT_PMC_LTR_CAM},
 {"ESPI",  SPT_PMC_LTR_ESPI},
 {"SCC",   SPT_PMC_LTR_SCC},
 {"ISH",   SPT_PMC_LTR_ISH},
 /* Below two cannot be used for LTR_IGNORE */
 {"CURRENT_PLATFORM", SPT_PMC_LTR_CUR_PLT},
 {"AGGREGATED_SYSTEM", SPT_PMC_LTR_CUR_ASLT},
 {}
};

static const struct pmc_reg_map spt_reg_map = {
 .pfear_sts = ext_spt_pfear_map,
 .mphy_sts = spt_mphy_map,
 .pll_sts = spt_pll_map,
 .ltr_show_sts = spt_ltr_show_map,
 .msr_sts = msr_map,
 .slp_s0_offset = SPT_PMC_SLP_S0_RES_COUNTER_OFFSET,
 .slp_s0_res_counter_step = SPT_PMC_SLP_S0_RES_COUNTER_STEP,
 .ltr_ignore_offset = SPT_PMC_LTR_IGNORE_OFFSET,
 .regmap_length = SPT_PMC_MMIO_REG_LEN,
 .ppfear0_offset = SPT_PMC_XRAM_PPFEAR0A,
 .ppfear_buckets = SPT_PPFEAR_NUM_ENTRIES,
 .pm_cfg_offset = SPT_PMC_PM_CFG_OFFSET,
 .pm_read_disable_bit = SPT_PMC_READ_DISABLE_BIT,
 .ltr_ignore_max = SPT_NUM_IP_IGN_ALLOWED,
 .pm_vric1_offset = SPT_PMC_VRIC1_OFFSET,
};

static const struct pci_device_id spt_pmc_pci_id[] = {
 { PCI_VDEVICE(INTEL, SPT_PMC_PCI_DEVICE_ID) },
 { }
};

static int spt_core_init(struct pmc_dev *pmcdev, struct pmc_dev_info *pmc_dev_info)
{
 /*
 * Coffee Lake has CPU ID of Kaby Lake and Cannon Lake PCH. So here
 * Sunrisepoint PCH regmap can't be used. Use Cannon Lake PCH regmap
 * in this case.
 */
 if (!pci_dev_present(spt_pmc_pci_id))
  return generic_core_init(pmcdev, &cnp_pmc_dev);

 return generic_core_init(pmcdev, pmc_dev_info);
}

struct pmc_dev_info spt_pmc_dev = {
 .map = &spt_reg_map,
 .init = spt_core_init,
};