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system76-coreboot/util/inteltool/lpc.c
Patrick Georgi 7333a116b3 util/: Replace GPLv2 boiler plate with SPDX header 
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Change-Id: I1008a63b804f355a916221ac994701d7584f60ff
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41177
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-09 21:22:08 +00:00

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/* 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;
}
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