| /* inteltool - dump all registers on an Intel CPU + chipset based system */ |
| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <inttypes.h> |
| #include <commonlib/helpers.h> |
| #include "inteltool.h" |
| |
| #define SUNRISE_LPC_BC 0xdc |
| |
| static const io_register_t sunrise_lpc_cfg_registers[] = { |
| {0x00, 4, "ID"}, |
| {0x04, 2, "CMD"}, |
| {0x06, 2, "STS"}, |
| {0x08, 1, "RID"}, |
| {0x09, 1, "CC[3]"}, |
| {0x0A, 1, "CC[2]"}, |
| {0x0B, 1, "CC[1]"}, |
| {0x0C, 1, "CC[0]"}, |
| {0x0E, 1, "HTYPE"}, |
| {0x2C, 4, "SS"}, |
| {0x34, 1, "CAPP"}, |
| {0x64, 1, "SCNT"}, |
| {0x80, 2, "IOD"}, |
| {0x82, 2, "IOE"}, |
| {0x84, 4, "LGIR1"}, |
| {0x88, 4, "LGIR2"}, |
| {0x8C, 4, "LGIR3"}, |
| {0x90, 4, "LGIR4"}, |
| {0x94, 4, "ULKMC"}, |
| {0x98, 4, "LGMR"}, |
| {0xD0, 2, "FS1"}, |
| {0xD4, 2, "FS2"}, |
| {0xD8, 2, "BDE"}, |
| {0xDC, 1, "BC"}, |
| {0xE0, 4, "PCCTL"}, |
| }; |
| |
| static const io_register_t sunrise_espi_cfg_registers[] = { |
| {0x00, 4, "ESPI_DID_VID"}, |
| {0x04, 4, "ESPI_STS_CMD"}, |
| {0x08, 4, "ESPI_CC_RID"}, |
| {0x0C, 4, "ESPI_BIST_HTYPE_PLT_CLS"}, |
| {0x2C, 4, "ESPI_SS"}, |
| {0x34, 4, "ESPI_CAPP"}, |
| {0x80, 4, "ESPI_IOD_IOE"}, |
| {0x84, 4, "ESPI_LGIR1"}, |
| {0x88, 4, "ESPI_LGIR2"}, |
| {0x8C, 4, "ESPI_LGIR3"}, |
| {0x90, 4, "ESPI_LGIR4"}, |
| {0x94, 4, "ESPI_ULKMC"}, |
| {0x98, 4, "ESPI_LGMR"}, |
| {0xD0, 4, "ESPI_FS1"}, |
| {0xD4, 4, "ESPI_FS2"}, |
| {0xD8, 4, "ESPI_BDE"}, |
| {0xDC, 4, "ESPI_BC"}, |
| }; |
| |
| int print_lpc(struct pci_dev *sb, struct pci_access *pacc) |
| { |
| size_t i, cfg_registers_size = 0; |
| const io_register_t *cfg_registers; |
| struct pci_dev *dev = NULL; |
| uint32_t bc; |
| |
| printf("\n========== LPC/eSPI =========\n\n"); |
| |
| switch (sb->device_id) { |
| case PCI_DEVICE_ID_INTEL_H110: |
| case PCI_DEVICE_ID_INTEL_H170: |
| case PCI_DEVICE_ID_INTEL_Z170: |
| case PCI_DEVICE_ID_INTEL_Q170: |
| case PCI_DEVICE_ID_INTEL_Q150: |
| case PCI_DEVICE_ID_INTEL_B150: |
| case PCI_DEVICE_ID_INTEL_C236: |
| case PCI_DEVICE_ID_INTEL_C232: |
| case PCI_DEVICE_ID_INTEL_QM170: |
| case PCI_DEVICE_ID_INTEL_HM170: |
| case PCI_DEVICE_ID_INTEL_CM236: |
| case PCI_DEVICE_ID_INTEL_HM175: |
| case PCI_DEVICE_ID_INTEL_QM175: |
| case PCI_DEVICE_ID_INTEL_CM238: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_PRE: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_BASE_SKL: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_PREM_SKL: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_PREM_SKL: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_BASE_KBL: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_PREM_KBL: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_PREM_KBL: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_IHDCP_BASE: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_U_IHDCP_PREM: |
| case PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_Y_IHDCP_PREM: |
| dev = pci_get_dev(pacc, sb->domain, sb->bus, sb->dev, 0); |
| if (!dev) { |
| printf("LPC/eSPI interface not found.\n"); |
| return 1; |
| } |
| bc = pci_read_long(dev, SUNRISE_LPC_BC); |
| if (bc & (1 << 2)) { |
| printf("Device 0:1f.0 is eSPI (BC.LPC_ESPI=1)\n\n"); |
| cfg_registers = sunrise_espi_cfg_registers; |
| cfg_registers_size = ARRAY_SIZE(sunrise_espi_cfg_registers); |
| |
| } else { |
| printf("Device 0:1f.0 is LPC (BC.LPC_ESPI=0)\n\n"); |
| cfg_registers = sunrise_lpc_cfg_registers; |
| cfg_registers_size = ARRAY_SIZE(sunrise_lpc_cfg_registers); |
| } |
| break; |
| |
| default: |
| printf("Error: Dumping LPC/eSPI on this southbridge is not (yet) supported.\n"); |
| return 1; |
| } |
| |
| for (i = 0; i < cfg_registers_size; i++) { |
| switch (cfg_registers[i].size) { |
| case 4: |
| printf("0x%04x: 0x%08x (%s)\n", |
| cfg_registers[i].addr, |
| pci_read_long(dev, cfg_registers[i].addr), |
| cfg_registers[i].name); |
| break; |
| case 2: |
| printf("0x%04x: 0x%04x (%s)\n", |
| cfg_registers[i].addr, |
| pci_read_word(dev, cfg_registers[i].addr), |
| cfg_registers[i].name); |
| break; |
| case 1: |
| printf("0x%04x: 0x%02x (%s)\n", |
| cfg_registers[i].addr, |
| pci_read_byte(dev, cfg_registers[i].addr), |
| cfg_registers[i].name); |
| break; |
| default: |
| printf("Error: register size %d not implemented.\n", |
| cfg_registers[i].size); |
| break; |
| } |
| } |
| |
| if (dev) |
| pci_free_dev(dev); |
| |
| return 0; |
| } |