| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2017 Advanced Micro Devices, Inc. |
| * |
| * 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 <chip.h> |
| #include <bootstate.h> |
| #include <console/console.h> |
| #include <cpu/amd/mtrr.h> |
| #include <cpu/cpu.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <drivers/i2c/designware/dw_i2c.h> |
| #include <romstage_handoff.h> |
| #include <soc/cpu.h> |
| #include <soc/northbridge.h> |
| #include <soc/pci_devs.h> |
| #include <soc/southbridge.h> |
| #include <amdblocks/psp.h> |
| #include <amdblocks/agesawrapper.h> |
| #include <amdblocks/agesawrapper_call.h> |
| |
| /* Supplied by i2c.c */ |
| extern struct device_operations stoneyridge_i2c_mmio_ops; |
| extern const char *i2c_acpi_name(const struct device *dev); |
| |
| struct device_operations cpu_bus_ops = { |
| .read_resources = DEVICE_NOOP, |
| .set_resources = DEVICE_NOOP, |
| .enable_resources = DEVICE_NOOP, |
| .init = stoney_init_cpus, |
| .acpi_fill_ssdt_generator = generate_cpu_entries, |
| }; |
| |
| static const char *soc_acpi_name(const struct device *dev) |
| { |
| if (dev->path.type == DEVICE_PATH_DOMAIN) |
| return "PCI0"; |
| if (dev->path.type != DEVICE_PATH_PCI) |
| return NULL; |
| |
| switch (dev->path.pci.devfn) { |
| case EHCI1_DEVFN: |
| return "EHC0"; |
| case LPC_DEVFN: |
| return "LPCB"; |
| case SATA_DEVFN: |
| return "STCR"; |
| case SD_DEVFN: |
| return "SDCN"; |
| case SMBUS_DEVFN: |
| return "SBUS"; |
| case XHCI_DEVFN: |
| return "XHC0"; |
| default: |
| return NULL; |
| } |
| }; |
| |
| struct device_operations pci_domain_ops = { |
| .read_resources = domain_read_resources, |
| .set_resources = domain_set_resources, |
| .enable_resources = domain_enable_resources, |
| .scan_bus = pci_domain_scan_bus, |
| .acpi_name = soc_acpi_name, |
| }; |
| |
| static void enable_dev(device_t dev) |
| { |
| /* Set the operations if it is a special bus type */ |
| if (dev->path.type == DEVICE_PATH_DOMAIN) |
| dev->ops = &pci_domain_ops; |
| else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) |
| dev->ops = &cpu_bus_ops; |
| else if (dev->path.type == DEVICE_PATH_PCI) |
| sb_enable(dev); |
| else if (dev->path.type == DEVICE_PATH_MMIO) |
| if (i2c_acpi_name(dev) != NULL) |
| dev->ops = &stoneyridge_i2c_mmio_ops; |
| } |
| |
| static void soc_init(void *chip_info) |
| { |
| southbridge_init(chip_info); |
| setup_bsp_ramtop(); |
| } |
| |
| static void soc_final(void *chip_info) |
| { |
| southbridge_final(chip_info); |
| fam15_finalize(chip_info); |
| } |
| |
| struct chip_operations soc_amd_stoneyridge_ops = { |
| CHIP_NAME("AMD StoneyRidge SOC") |
| .enable_dev = &enable_dev, |
| .init = &soc_init, |
| .final = &soc_final |
| }; |
| |
| static void earliest_ramstage(void *unused) |
| { |
| if (!romstage_handoff_is_resume()) { |
| post_code(0x46); |
| if (IS_ENABLED(CONFIG_SOC_AMD_PSP_SELECTABLE_SMU_FW)) |
| psp_load_named_blob(MBOX_BIOS_CMD_SMU_FW2, "smu_fw2"); |
| |
| post_code(0x47); |
| do_agesawrapper(agesawrapper_amdinitenv, "amdinitenv"); |
| } else { |
| /* Complete the initial system restoration */ |
| post_code(0x46); |
| do_agesawrapper(agesawrapper_amds3laterestore, |
| "amds3laterestore"); |
| } |
| } |
| |
| BOOT_STATE_INIT_ENTRY(BS_PRE_DEVICE, BS_ON_ENTRY, earliest_ramstage, NULL); |