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/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootstate.h>
#include <cpu/amd/mtrr.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <drivers/i2c/designware/dw_i2c.h>
#include <romstage_handoff.h>
#include <soc/acpi.h>
#include <soc/cpu.h>
#include <soc/data_fabric.h>
#include <soc/pci_devs.h>
#include <soc/southbridge.h>
#include "chip.h"
#include <fsp/api.h>
/* Supplied by i2c.c */
extern struct device_operations picasso_i2c_mmio_ops;
extern const char *i2c_acpi_name(const struct device *dev);
struct device_operations cpu_bus_ops = {
.read_resources = noop_read_resources,
.set_resources = noop_set_resources,
.init = picasso_init_cpus,
.acpi_fill_ssdt = generate_cpu_entries,
};
const char *soc_acpi_name(const struct device *dev)
{
if (dev->path.type == DEVICE_PATH_DOMAIN)
return "PCI0";
if (dev->path.type == DEVICE_PATH_USB) {
switch (dev->path.usb.port_type) {
case 0:
/* Root Hub */
return "RHUB";
case 3:
/* USB3 ports */
switch (dev->path.usb.port_id) {
case 0: return "SS01";
case 1: return "SS02";
case 2: return "SS03";
}
break;
}
return NULL;
}
if (dev->path.type != DEVICE_PATH_PCI)
return NULL;
if (dev->bus->dev->path.type == DEVICE_PATH_DOMAIN) {
switch (dev->path.pci.devfn) {
case GNB_DEVFN:
return "GNB";
case IOMMU_DEVFN:
return "IOMM";
case PCIE_GPP_0_DEVFN:
return "PBR0";
case PCIE_GPP_1_DEVFN:
return "PBR1";
case PCIE_GPP_2_DEVFN:
return "PBR2";
case PCIE_GPP_3_DEVFN:
return "PBR3";
case PCIE_GPP_4_DEVFN:
return "PBR4";
case PCIE_GPP_5_DEVFN:
return "PBR5";
case PCIE_GPP_6_DEVFN:
return "PBR6";
case PCIE_GPP_A_DEVFN:
return "PBRA";
case PCIE_GPP_B_DEVFN:
return "PBRB";
case LPC_DEVFN:
return "LPCB";
case SMBUS_DEVFN:
return "SBUS";
default:
printk(BIOS_WARNING, "Unknown root PCI device: dev: %d, fn: %d\n",
PCI_SLOT(dev->path.pci.devfn), PCI_FUNC(dev->path.pci.devfn));
return NULL;
}
}
if (dev->bus->dev->path.type == DEVICE_PATH_PCI
&& dev->bus->dev->path.pci.devfn == PCIE_GPP_A_DEVFN) {
switch (dev->path.pci.devfn) {
case XHCI0_DEVFN:
return "XHC0";
case XHCI1_DEVFN:
return "XHC1";
default:
printk(BIOS_WARNING, "Unknown Bus A PCI device: dev: %d, fn: %d\n",
PCI_SLOT(dev->path.pci.devfn), PCI_FUNC(dev->path.pci.devfn));
return NULL;
}
}
printk(BIOS_WARNING, "Unknown PCI device: dev: %d, fn: %d\n",
PCI_SLOT(dev->path.pci.devfn), PCI_FUNC(dev->path.pci.devfn));
return NULL;
};
struct device_operations pci_domain_ops = {
.read_resources = pci_domain_read_resources,
.set_resources = pci_domain_set_resources,
.scan_bus = pci_domain_scan_bus,
.acpi_name = soc_acpi_name,
};
static struct device_operations pci_ops_ops_bus_ab = {
.read_resources = pci_bus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_bus_enable_resources,
.scan_bus = pci_scan_bridge,
.reset_bus = pci_bus_reset,
.acpi_fill_ssdt = acpi_device_write_pci_dev,
};
static void enable_dev(struct device *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) {
if (dev->bus->dev->path.type == DEVICE_PATH_DOMAIN) {
switch (dev->path.pci.devfn) {
case PCIE_GPP_A_DEVFN:
case PCIE_GPP_B_DEVFN:
dev->ops = &pci_ops_ops_bus_ab;
}
}
sb_enable(dev);
} else if (dev->path.type == DEVICE_PATH_MMIO) {
if (i2c_acpi_name(dev) != NULL)
dev->ops = &picasso_i2c_mmio_ops;
}
}
static void soc_init(void *chip_info)
{
fsp_silicon_init(acpi_is_wakeup_s3());
data_fabric_set_mmio_np();
southbridge_init(chip_info);
setup_bsp_ramtop();
}
static void soc_final(void *chip_info)
{
southbridge_final(chip_info);
}
struct chip_operations soc_amd_picasso_ops = {
CHIP_NAME("AMD Picasso SOC")
.enable_dev = enable_dev,
.init = soc_init,
.final = soc_final
};
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