src/soc/amd/picasso/romstage.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <arch/cpu.h>
   4 #include <acpi/acpi.h>
   5 #include <cpu/x86/cache.h>
   6 #include <cpu/amd/mtrr.h>
   7 #include <console/uart.h>
   8 #include <cbmem.h>
   9 #include <commonlib/helpers.h>
  10 #include <console/console.h>
  11 #include <program_loading.h>
  12 #include <elog.h>
  13 #include <soc/memmap.h>
  14 #include <soc/mrc_cache.h>
  15 #include <types.h>
  16 #include "chip.h"
  17 #include <fsp/api.h>
  18
  19 void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
  20 {
  21         FSP_M_CONFIG *mcfg = &mupd->FspmConfig;
  22         const config_t *config = config_of_soc();
  23
  24         mupd->FspmArchUpd.NvsBufferPtr = soc_fill_mrc_cache();
  25
  26         mcfg->pci_express_base_addr = CONFIG_MMCONF_BASE_ADDRESS;
  27         mcfg->tseg_size = CONFIG_SMM_TSEG_SIZE;
  28         mcfg->bert_size = CONFIG_ACPI_BERT_SIZE;
  29         mcfg->serial_port_base = uart_platform_base(CONFIG_UART_FOR_CONSOLE);
  30         mcfg->serial_port_use_mmio = CONFIG(DRIVERS_UART_8250MEM);
  31         mcfg->serial_port_stride = CONFIG(DRIVERS_UART_8250MEM_32) ? 4 : 1;
  32         mcfg->serial_port_baudrate = get_uart_baudrate();
  33         mcfg->serial_port_refclk = uart_platform_refclk();
  34
  35         mcfg->system_config = config->system_config;
  36
  37         if ((config->slow_ppt_limit) &&
  38                 (config->fast_ppt_limit) &&
  39                 (config->slow_ppt_time_constant) &&
  40                 (config->stapm_time_constant)) {
  41                 mcfg->slow_ppt_limit = config->slow_ppt_limit;
  42                 mcfg->fast_ppt_limit = config->fast_ppt_limit;
  43                 mcfg->slow_ppt_time_constant = config->slow_ppt_time_constant;
  44                 mcfg->stapm_time_constant = config->stapm_time_constant;
  45         }
  46
  47         mcfg->sustained_power_limit = config->sustained_power_limit;
  48         mcfg->prochot_l_deassertion_ramp_time = config->prochot_l_deassertion_ramp_time;
  49         mcfg->thermctl_limit = config->thermctl_limit;
  50         mcfg->psi0_current_limit = config->psi0_current_limit;
  51         mcfg->psi0_soc_current_limit = config->psi0_soc_current_limit;
  52         mcfg->vddcr_soc_voltage_margin = config->vddcr_soc_voltage_margin;
  53         mcfg->vddcr_vdd_voltage_margin = config->vddcr_vdd_voltage_margin;
  54         mcfg->vrm_maximum_current_limit = config->vrm_maximum_current_limit;
  55         mcfg->vrm_soc_maximum_current_limit = config->vrm_soc_maximum_current_limit;
  56         mcfg->vrm_current_limit = config->vrm_current_limit;
  57         mcfg->vrm_soc_current_limit = config->vrm_soc_current_limit;
  58         mcfg->sb_tsi_alert_comparator_mode_en = config->sb_tsi_alert_comparator_mode_en;
  59         mcfg->core_dldo_bypass = config->core_dldo_bypass;
  60         mcfg->min_soc_vid_offset = config->min_soc_vid_offset;
  61         mcfg->aclk_dpm0_freq_400MHz = config->aclk_dpm0_freq_400MHz;
  62         mcfg->telemetry_vddcr_vdd_slope = config->telemetry_vddcr_vdd_slope;
  63         mcfg->telemetry_vddcr_vdd_offset = config->telemetry_vddcr_vdd_offset;
  64         mcfg->telemetry_vddcr_soc_slope = config->telemetry_vddcr_soc_slope;
  65         mcfg->telemetry_vddcr_soc_offset = config->telemetry_vddcr_soc_offset;
  66 }
  67
  68 asmlinkage void car_stage_entry(void)
  69 {
  70         int s3_resume;
  71
  72         post_code(0x40);
  73         console_init();
  74
  75         post_code(0x41);
  76         s3_resume = acpi_s3_resume_allowed() && acpi_is_wakeup_s3();
  77
  78         post_code(0x42);
  79         u32 val = cpuid_eax(1);
  80         printk(BIOS_DEBUG, "Family_Model: %08x\n", val);
  81
  82         post_code(0x43);
  83         fsp_memory_init(s3_resume);
  84         soc_update_mrc_cache();
  85
  86         memmap_stash_early_dram_usage();
  87
  88         post_code(0x44);
  89         run_ramstage();
  90
  91         post_code(0x50); /* Should never see this post code. */
  92 }