xref: /openbmc/linux/drivers/platform/x86/intel/pmc/mtl.c (revision 9d5dbfe0)
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 }
53