| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2014 Google Inc. |
| * Copyright (C) 2015 Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc. |
| */ |
| |
| #include <arch/cpu.h> |
| #include <arch/io.h> |
| #include <console/console.h> |
| #include <cpu/x86/msr.h> |
| #include <device/pci.h> |
| #include <soc/cpu.h> |
| #include <soc/pch.h> |
| #include <soc/pci_devs.h> |
| #include <soc/romstage.h> |
| #include <soc/systemagent.h> |
| #include <string.h> |
| |
| static struct { |
| u32 cpuid; |
| const char *name; |
| } cpu_table[] = { |
| { CPUID_SKYLAKE_C0, "Skylake C0" }, |
| { CPUID_SKYLAKE_D0, "Skylake D0" }, |
| }; |
| |
| static struct { |
| u16 mchid; |
| const char *name; |
| } mch_table[] = { |
| { MCH_SKYLAKE_ID_U, "Skylake-U" }, |
| { MCH_SKYLAKE_ID_Y, "Skylake-Y" }, |
| { MCH_SKYLAKE_ID_ULX, "Skylake-ULX" }, |
| }; |
| |
| static struct { |
| u16 lpcid; |
| const char *name; |
| } pch_table[] = { |
| { PCH_SPT_LP_SAMPLE, "Skylake LP Sample" }, |
| { PCH_SPT_LP_U_BASE, "Skylake-U Base" }, |
| { PCH_SPT_LP_U_PREMIUM, "Skylake-U Premium" }, |
| { PCH_SPT_LP_Y_PREMIUM, "Skylake-Y Premium" }, |
| }; |
| |
| static struct { |
| u16 igdid; |
| const char *name; |
| } igd_table[] = { |
| { IGD_SKYLAKE_GT1_SULTM, "Skylake ULT GT1"}, |
| { IGD_SKYLAKE_GT2_SULXM, "Skylake ULX GT2" }, |
| { IGD_SKYLAKE_GT2_SULTM, "Skylake ULT GT2" }, |
| }; |
| |
| static void report_cpu_info(void) |
| { |
| struct cpuid_result cpuidr; |
| u32 i, index; |
| char cpu_string[50], *cpu_name = cpu_string; /* 48 bytes are reported */ |
| int vt, txt, aes; |
| msr_t microcode_ver; |
| const char *mode[] = {"NOT ", ""}; |
| const char *cpu_type = "Unknown"; |
| |
| index = 0x80000000; |
| cpuidr = cpuid(index); |
| if (cpuidr.eax < 0x80000004) { |
| strcpy(cpu_string, "Platform info not available"); |
| } else { |
| u32 *p = (u32 *) cpu_string; |
| for (i = 2; i <= 4; i++) { |
| cpuidr = cpuid(index + i); |
| *p++ = cpuidr.eax; |
| *p++ = cpuidr.ebx; |
| *p++ = cpuidr.ecx; |
| *p++ = cpuidr.edx; |
| } |
| } |
| /* Skip leading spaces in CPU name string */ |
| while (cpu_name[0] == ' ') |
| cpu_name++; |
| |
| microcode_ver.lo = 0; |
| microcode_ver.hi = 0; |
| wrmsr(0x8B, microcode_ver); |
| cpuidr = cpuid(1); |
| microcode_ver = rdmsr(0x8b); |
| |
| /* Look for string to match the name */ |
| for (i = 0; i < ARRAY_SIZE(cpu_table); i++) { |
| if (cpu_table[i].cpuid == cpuidr.eax) { |
| cpu_type = cpu_table[i].name; |
| break; |
| } |
| } |
| |
| printk(BIOS_DEBUG, "CPU: %s\n", cpu_name); |
| printk(BIOS_DEBUG, "CPU: ID %x, %s, ucode: %08x\n", |
| cpuidr.eax, cpu_type, microcode_ver.hi); |
| |
| aes = (cpuidr.ecx & (1 << 25)) ? 1 : 0; |
| txt = (cpuidr.ecx & (1 << 6)) ? 1 : 0; |
| vt = (cpuidr.ecx & (1 << 5)) ? 1 : 0; |
| printk(BIOS_DEBUG, |
| "CPU: AES %ssupported, TXT %ssupported, VT %ssupported\n", |
| mode[aes], mode[txt], mode[vt]); |
| } |
| |
| static void report_mch_info(void) |
| { |
| int i; |
| u16 mchid = pci_read_config16(SA_DEV_ROOT, PCI_DEVICE_ID); |
| u8 mch_revision = pci_read_config8(SA_DEV_ROOT, PCI_REVISION_ID); |
| const char *mch_type = "Unknown"; |
| |
| for (i = 0; i < ARRAY_SIZE(mch_table); i++) { |
| if (mch_table[i].mchid == mchid) { |
| mch_type = mch_table[i].name; |
| break; |
| } |
| } |
| |
| printk(BIOS_DEBUG, "MCH: device id %04x (rev %02x) is %s\n", |
| mchid, mch_revision, mch_type); |
| } |
| |
| static void report_pch_info(void) |
| { |
| int i; |
| u16 lpcid = pch_type(); |
| const char *pch_type = "Unknown"; |
| |
| for (i = 0; i < ARRAY_SIZE(pch_table); i++) { |
| if (pch_table[i].lpcid == lpcid) { |
| pch_type = pch_table[i].name; |
| break; |
| } |
| } |
| printk(BIOS_DEBUG, "PCH: device id %04x (rev %02x) is %s\n", |
| lpcid, pch_revision(), pch_type); |
| } |
| |
| static void report_igd_info(void) |
| { |
| int i; |
| u16 igdid = pci_read_config16(SA_DEV_IGD, PCI_DEVICE_ID); |
| const char *igd_type = "Unknown"; |
| |
| for (i = 0; i < ARRAY_SIZE(igd_table); i++) { |
| if (igd_table[i].igdid == igdid) { |
| igd_type = igd_table[i].name; |
| break; |
| } |
| } |
| printk(BIOS_DEBUG, "IGD: device id %04x (rev %02x) is %s\n", |
| igdid, pci_read_config8(SA_DEV_IGD, PCI_REVISION_ID), igd_type); |
| } |
| |
| void report_platform_info(void) |
| { |
| report_cpu_info(); |
| report_mch_info(); |
| report_pch_info(); |
| report_igd_info(); |
| } |
| |
| /* |
| * Dump in the log memory controller configuration as read from the memory |
| * controller registers. |
| */ |
| void report_memory_config(void) |
| { |
| u32 addr_decoder_common, addr_decode_ch[2]; |
| int i; |
| |
| addr_decoder_common = MCHBAR32(0x5000); |
| addr_decode_ch[0] = MCHBAR32(0x5004); |
| addr_decode_ch[1] = MCHBAR32(0x5008); |
| |
| printk(BIOS_DEBUG, "memcfg DDR3 clock %d MHz\n", |
| (MCHBAR32(0x5e04) * 13333 * 2 + 50)/100); |
| printk(BIOS_DEBUG, "memcfg channel assignment: A: %d, B % d, C % d\n", |
| addr_decoder_common & 3, |
| (addr_decoder_common >> 2) & 3, |
| (addr_decoder_common >> 4) & 3); |
| |
| for (i = 0; i < ARRAY_SIZE(addr_decode_ch); i++) { |
| u32 ch_conf = addr_decode_ch[i]; |
| printk(BIOS_DEBUG, "memcfg channel[%d] config (%8.8x):\n", |
| i, ch_conf); |
| printk(BIOS_DEBUG, " enhanced interleave mode %s\n", |
| ((ch_conf >> 22) & 1) ? "on" : "off"); |
| printk(BIOS_DEBUG, " rank interleave %s\n", |
| ((ch_conf >> 21) & 1) ? "on" : "off"); |
| printk(BIOS_DEBUG, " DIMMA %d MB width %s %s rank%s\n", |
| ((ch_conf >> 0) & 0xff) * 256, |
| ((ch_conf >> 19) & 1) ? "x16" : "x8 or x32", |
| ((ch_conf >> 17) & 1) ? "dual" : "single", |
| ((ch_conf >> 16) & 1) ? "" : ", selected"); |
| printk(BIOS_DEBUG, " DIMMB %d MB width %s %s rank%s\n", |
| ((ch_conf >> 8) & 0xff) * 256, |
| ((ch_conf >> 19) & 1) ? "x16" : "x8 or x32", |
| ((ch_conf >> 18) & 1) ? "dual" : "single", |
| ((ch_conf >> 16) & 1) ? ", selected" : ""); |
| } |
| } |