drivers/platform/x86/intel/pmc/mtl.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * This file contains platform specific structure definitions
   4  * and init function used by Meteor Lake PCH.
   5  *
   6  * Copyright (c) 2022, Intel Corporation.
   7  * All Rights Reserved.
   8  *
   9  */
  10
  11 #include "core.h"
  12
  13 const struct pmc_reg_map mtl_reg_map = {
  14         .pfear_sts = ext_tgl_pfear_map,
  15         .slp_s0_offset = CNP_PMC_SLP_S0_RES_COUNTER_OFFSET,
  16         .slp_s0_res_counter_step = TGL_PMC_SLP_S0_RES_COUNTER_STEP,
  17         .ltr_show_sts = adl_ltr_show_map,
  18         .msr_sts = msr_map,
  19         .ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
  20         .regmap_length = CNP_PMC_MMIO_REG_LEN,
  21         .ppfear0_offset = CNP_PMC_HOST_PPFEAR0A,
  22         .ppfear_buckets = ICL_PPFEAR_NUM_ENTRIES,
  23         .pm_cfg_offset = CNP_PMC_PM_CFG_OFFSET,
  24         .pm_read_disable_bit = CNP_PMC_READ_DISABLE_BIT,
  25         .ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
  26         .lpm_num_modes = ADL_LPM_NUM_MODES,
  27         .lpm_num_maps = ADL_LPM_NUM_MAPS,
  28         .lpm_res_counter_step_x2 = TGL_PMC_LPM_RES_COUNTER_STEP_X2,
  29         .etr3_offset = ETR3_OFFSET,
  30         .lpm_sts_latch_en_offset = MTL_LPM_STATUS_LATCH_EN_OFFSET,
  31         .lpm_priority_offset = MTL_LPM_PRI_OFFSET,
  32         .lpm_en_offset = MTL_LPM_EN_OFFSET,
  33         .lpm_residency_offset = MTL_LPM_RESIDENCY_OFFSET,
  34         .lpm_sts = adl_lpm_maps,
  35         .lpm_status_offset = MTL_LPM_STATUS_OFFSET,
  36         .lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
  37 };
  38
  39 void mtl_core_configure(struct pmc_dev *pmcdev)
  40 {
  41         /* Due to a hardware limitation, the GBE LTR blocks PC10
  42          * when a cable is attached. Tell the PMC to ignore it.
  43          */
  44         dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n");
  45         pmc_core_send_ltr_ignore(pmcdev, 3);
  46 }
  47
  48 void mtl_core_init(struct pmc_dev *pmcdev)
  49 {
  50         pmcdev->map = &mtl_reg_map;
  51         pmcdev->core_configure = mtl_core_configure;
  52 }