diff options
Diffstat (limited to 'src/soc/intel/tigerlake/bootblock')
| -rw-r--r-- | src/soc/intel/tigerlake/bootblock/bootblock.c | 44 | ||||
| -rw-r--r-- | src/soc/intel/tigerlake/bootblock/cpu.c | 37 | ||||
| -rw-r--r-- | src/soc/intel/tigerlake/bootblock/pch.c | 171 | ||||
| -rw-r--r-- | src/soc/intel/tigerlake/bootblock/report_platform.c | 168 |
4 files changed, 420 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/bootblock/bootblock.c b/src/soc/intel/tigerlake/bootblock/bootblock.c new file mode 100644 index 0000000000..f6fe4c4dbd --- /dev/null +++ b/src/soc/intel/tigerlake/bootblock/bootblock.c @@ -0,0 +1,44 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Intel Corp. + * + * 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. + */ + +#include <bootblock_common.h> +#include <intelblocks/gspi.h> +#include <intelblocks/systemagent.h> +#include <intelblocks/uart.h> +#include <soc/bootblock.h> +#include <soc/iomap.h> +#include <soc/pch.h> + +asmlinkage void bootblock_c_entry(uint64_t base_timestamp) +{ + /* Call lib/bootblock.c main */ + bootblock_main_with_basetime(base_timestamp); +} + +void bootblock_soc_early_init(void) +{ + bootblock_systemagent_early_init(); + bootblock_pch_early_init(); + bootblock_cpu_init(); + pch_early_iorange_init(); + if (CONFIG(INTEL_LPSS_UART_FOR_CONSOLE)) + uart_bootblock_init(); +} + +void bootblock_soc_init(void) +{ + report_platform_info(); + pch_early_init(); +} diff --git a/src/soc/intel/tigerlake/bootblock/cpu.c b/src/soc/intel/tigerlake/bootblock/cpu.c new file mode 100644 index 0000000000..1bae4fa804 --- /dev/null +++ b/src/soc/intel/tigerlake/bootblock/cpu.c @@ -0,0 +1,37 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Intel Corp. + * + * 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. + */ + +/* + * This file is created based on Intel Tiger Lake Processor PCH Datasheet + * Document number: 575857 + * Chapter number: 6 + */ + +#include <intelblocks/fast_spi.h> +#include <soc/bootblock.h> + +void bootblock_cpu_init(void) +{ + /* + * Tigerlake platform doesn't support booting from any other media + * (like eMMC on APL/GLK platform) than only booting from SPI device + * and on IA platform SPI is memory mapped hence enabling temporarily + * cacheing on memory-mapped spi boot media. + * + * This assumption will not hold good for APL/GLK platform where boot + * from eMMC is also possible options. + */ + fast_spi_cache_bios_region(); +} diff --git a/src/soc/intel/tigerlake/bootblock/pch.c b/src/soc/intel/tigerlake/bootblock/pch.c new file mode 100644 index 0000000000..c7ccbf8bab --- /dev/null +++ b/src/soc/intel/tigerlake/bootblock/pch.c @@ -0,0 +1,171 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Intel Corp. + * + * 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. + */ + +/* + * This file is created based on Intel Tiger Lake Processor PCH Datasheet + * Document number: 575857 + * Chapter number: 2, 3, 4, 27, 28 + */ + +#include <device/mmio.h> +#include <device/device.h> +#include <device/pci_ops.h> +#include <intelblocks/fast_spi.h> +#include <intelblocks/gspi.h> +#include <intelblocks/lpc_lib.h> +#include <intelblocks/p2sb.h> +#include <intelblocks/pcr.h> +#include <intelblocks/pmclib.h> +#include <intelblocks/rtc.h> +#include <soc/bootblock.h> +#include <soc/iomap.h> +#include <soc/p2sb.h> +#include <soc/pch.h> +#include <soc/pci_devs.h> +#include <soc/pcr_ids.h> +#include <soc/pm.h> + +#define PCR_PSF3_TO_SHDW_PMC_REG_BASE 0x0600 +#define PCR_PSFX_TO_SHDW_BAR0 0 +#define PCR_PSFX_TO_SHDW_BAR1 0x4 +#define PCR_PSFX_TO_SHDW_BAR2 0x8 +#define PCR_PSFX_TO_SHDW_BAR3 0xC +#define PCR_PSFX_TO_SHDW_BAR4 0x10 +#define PCR_PSFX_TO_SHDW_PCIEN_IOEN 0x01 +#define PCR_PSFX_T0_SHDW_PCIEN 0x1C + +#define PCR_DMI_DMICTL 0x2234 +#define PCR_DMI_DMICTL_SRLOCK (1 << 31) + +#define PCR_DMI_ACPIBA 0x27B4 +#define PCR_DMI_ACPIBDID 0x27B8 +#define PCR_DMI_PMBASEA 0x27AC +#define PCR_DMI_PMBASEC 0x27B0 + +#define PCR_DMI_LPCIOD 0x2770 +#define PCR_DMI_LPCIOE 0x2774 + +static void soc_config_pwrmbase(void) +{ + uint32_t reg32; + + /* + * Assign Resources to PWRMBASE + * Clear BIT 1-2 Command Register + */ + reg32 = pci_read_config32(PCH_DEV_PMC, PCI_COMMAND); + reg32 &= ~(PCI_COMMAND_MEMORY); + pci_write_config32(PCH_DEV_PMC, PCI_COMMAND, reg32); + + /* Program PWRM Base */ + pci_write_config32(PCH_DEV_PMC, PWRMBASE, PCH_PWRM_BASE_ADDRESS); + + /* Enable Bus Master and MMIO Space */ + reg32 = pci_read_config32(PCH_DEV_PMC, PCI_COMMAND); + reg32 |= PCI_COMMAND_MEMORY; + pci_write_config32(PCH_DEV_PMC, PCI_COMMAND, reg32); + + /* Enable PWRM in PMC */ + reg32 = read32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL)); + write32((void *)(PCH_PWRM_BASE_ADDRESS + ACTL), reg32 | PWRM_EN); +} + +void bootblock_pch_early_init(void) +{ + fast_spi_early_init(SPI_BASE_ADDRESS); + gspi_early_bar_init(); + p2sb_enable_bar(); + p2sb_configure_hpet(); + + /* + * Enabling PWRM Base for accessing + * Global Reset Cause Register. + */ + soc_config_pwrmbase(); +} + +static void soc_config_acpibase(void) +{ + uint32_t pmc_reg_value; + + pmc_reg_value = pcr_read32(PID_PSF3, PCR_PSF3_TO_SHDW_PMC_REG_BASE + + PCR_PSFX_TO_SHDW_BAR4); + + if (pmc_reg_value != 0xffffffff) { + /* Disable Io Space before changing the address */ + pcr_rmw32(PID_PSF3, PCR_PSF3_TO_SHDW_PMC_REG_BASE + + PCR_PSFX_T0_SHDW_PCIEN, + ~PCR_PSFX_TO_SHDW_PCIEN_IOEN, 0); + /* Program ABASE in PSF3 PMC space BAR4*/ + pcr_write32(PID_PSF3, PCR_PSF3_TO_SHDW_PMC_REG_BASE + + PCR_PSFX_TO_SHDW_BAR4, + ACPI_BASE_ADDRESS); + /* Enable IO Space */ + pcr_rmw32(PID_PSF3, PCR_PSF3_TO_SHDW_PMC_REG_BASE + + PCR_PSFX_T0_SHDW_PCIEN, + ~0, PCR_PSFX_TO_SHDW_PCIEN_IOEN); + } +} + +static int pch_check_decode_enable(void) +{ + uint32_t dmi_control; + + /* + * This cycle decoding is only allowed to set when + * DMICTL.SRLOCK is 0. + */ + dmi_control = pcr_read32(PID_DMI, PCR_DMI_DMICTL); + if (dmi_control & PCR_DMI_DMICTL_SRLOCK) + return -1; + return 0; +} + +void pch_early_iorange_init(void) +{ + uint16_t io_enables = LPC_IOE_SUPERIO_2E_2F | LPC_IOE_KBC_60_64 | + LPC_IOE_EC_62_66 | LPC_IOE_LGE_200; + + /* IO Decode Range */ + if (CONFIG(DRIVERS_UART_8250IO)) + lpc_io_setup_comm_a_b(); + + /* IO Decode Enable */ + if (pch_check_decode_enable() == 0) { + io_enables = lpc_enable_fixed_io_ranges(io_enables); + /* + * Set up ESPI IO Enables PCR[DMI] + 2774h [15:0] to the same + * value program in ESPI PCI offset 82h. + */ + pcr_write16(PID_DMI, PCR_DMI_LPCIOE, io_enables); + } + + /* Program generic IO Decode Range */ + pch_enable_lpc(); +} + +void pch_early_init(void) +{ + /* + * Enabling ABASE for accessing PM1_STS, PM1_EN, PM1_CNT, + * GPE0_STS, GPE0_EN registers. + */ + soc_config_acpibase(); + + /* Set up GPE configuration */ + pmc_gpe_init(); + + enable_rtc_upper_bank(); +} diff --git a/src/soc/intel/tigerlake/bootblock/report_platform.c b/src/soc/intel/tigerlake/bootblock/report_platform.c new file mode 100644 index 0000000000..6a58ea7c97 --- /dev/null +++ b/src/soc/intel/tigerlake/bootblock/report_platform.c @@ -0,0 +1,168 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Intel Corp. + * + * 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. + */ + +/* + * This file is created based on Intel Tiger Lake Platform Stepping and IDs + * Document number: 605534 + * Chapter number: 2, 4, 5, 6 + */ + +#include <arch/cpu.h> +#include <device/pci_ops.h> +#include <console/console.h> +#include <cpu/x86/msr.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <intelblocks/mp_init.h> +#include <soc/bootblock.h> +#include <soc/pch.h> +#include <soc/pci_devs.h> +#include <string.h> + +#define BIOS_SIGN_ID 0x8B + +/* + * TODO: Add TGL specific CPU/SA/PCH IDs here + */ + +static inline uint8_t get_dev_revision(pci_devfn_t dev) +{ + return pci_read_config8(dev, PCI_REVISION_ID); +} + +static inline uint16_t get_dev_id(pci_devfn_t dev) +{ + return pci_read_config16(dev, PCI_DEVICE_ID); +} + +static void report_cpu_info(void) +{ + struct cpuid_result cpuidr; + u32 i, index, cpu_id, cpu_feature_flag; + const char cpu_not_found[] = "Platform info not available"; + const char *cpu_name = cpu_not_found; /* 48 bytes are reported */ + int vt, txt, aes; + msr_t microcode_ver; + static const char *const mode[] = {"NOT ", ""}; + const char *cpu_type = "Unknown"; + u32 p[13]; + + index = 0x80000000; + cpuidr = cpuid(index); + if (cpuidr.eax >= 0x80000004) { + int j = 0; + + for (i = 2; i <= 4; i++) { + cpuidr = cpuid(index + i); + p[j++] = cpuidr.eax; + p[j++] = cpuidr.ebx; + p[j++] = cpuidr.ecx; + p[j++] = cpuidr.edx; + } + p[12] = 0; + cpu_name = (char *)p; + + /* Skip leading spaces in CPU name string */ + while (cpu_name[0] == ' ' && strlen(cpu_name) > 0) + cpu_name++; + } + + microcode_ver.lo = 0; + microcode_ver.hi = 0; + wrmsr(BIOS_SIGN_ID, microcode_ver); + cpu_id = cpu_get_cpuid(); + microcode_ver = rdmsr(BIOS_SIGN_ID); + + /* Look for string to match the name */ + for (i = 0; i < ARRAY_SIZE(cpu_table); i++) { + if (cpu_table[i].cpuid == cpu_id) { + 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", + cpu_id, cpu_type, microcode_ver.hi); + + cpu_feature_flag = cpu_get_feature_flags_ecx(); + aes = (cpu_feature_flag & CPUID_AES) ? 1 : 0; + txt = (cpu_feature_flag & CPUID_SMX) ? 1 : 0; + vt = (cpu_feature_flag & CPUID_VMX) ? 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; + pci_devfn_t dev = SA_DEV_ROOT; + uint16_t mchid = get_dev_id(dev); + uint8_t mch_revision = get_dev_revision(dev); + 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; + pci_devfn_t dev = PCH_DEV_ESPI; + uint16_t espiid = get_dev_id(dev); + const char *pch_type = "Unknown"; + + for (i = 0; i < ARRAY_SIZE(pch_table); i++) { + if (pch_table[i].espiid == espiid) { + pch_type = pch_table[i].name; + break; + } + } + printk(BIOS_DEBUG, "PCH: device id %04x (rev %02x) is %s\n", + espiid, get_dev_revision(dev), pch_type); +} + +static void report_igd_info(void) +{ + int i; + pci_devfn_t dev = SA_DEV_IGD; + uint16_t igdid = get_dev_id(dev); + 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, get_dev_revision(dev), igd_type); +} + +void report_platform_info(void) +{ + report_cpu_info(); + report_mch_info(); + report_pch_info(); + report_igd_info(); +} |