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/*
* 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,
.ops_pci_bus = pci_bus_default_ops,
.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);
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