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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 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 <stdint.h>
#include <console/console.h>
#include <device/device.h>
#include <arch/ioapic.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include "NbPlatform.h"
#include "nb_cimx.h"
#include "rd890_cfg.h"
/**
* Global RD890 CIMX Configuration structure
*/
static NB_CONFIG nb_cfg[MAX_NB_COUNT];
static HT_CONFIG ht_cfg[MAX_NB_COUNT];
static PCIE_CONFIG pcie_cfg[MAX_NB_COUNT];
static AMD_NB_CONFIG_BLOCK gConfig;
/**
* Reset PCIE Cores, Training the Ports selected by port_enable of devicetree
* After this call EP are fully operational on particular NB
*/
void nb_Pcie_Early_Init(void)
{
LibSystemApiCall(AmdPcieEarlyInit, &gConfig); //AmdPcieEarlyInit(&gConfig);
}
void nb_Pcie_Late_Init(void)
{
LibSystemApiCall(AmdPcieLateInit, &gConfig);
}
void nb_Early_Post_Init(void)
{
LibSystemApiCall(AmdEarlyPostInit, &gConfig);
}
void nb_Mid_Post_Init(void)
{
LibSystemApiCall(AmdMidPostInit, &gConfig);
}
void nb_Late_Post_Init(void)
{
LibSystemApiCall(AmdLatePostInit, &gConfig);
}
static void rd890_enable(device_t dev)
{
u32 address = 0;
u32 devfn;
AMD_NB_CONFIG *NbConfigPtr = NULL;
u8 nb_index = 0; /* The first IO Hub, TODO: other NBs */
address = MAKE_SBDFO(0, 0x0, 0x0, 0x0, 0x0);
NbConfigPtr = &(gConfig.Northbridges[nb_index]);
devfn = dev->path.pci.devfn;
printk(BIOS_INFO, "rd890_enable ");
printk(BIOS_INFO, "Bus-%x Dev-%X Fun-%X, enable=%x\n",
0, (devfn >> 3), (devfn & 0x07), dev->enabled);
/* we only do this once */
if (devfn == 0) {
/* CIMX configuration defualt initialize */
rd890_cimx_config(&gConfig, &nb_cfg[0], &ht_cfg[0], &pcie_cfg[0]);
if (gConfig.StandardHeader.CalloutPtr != NULL) {
gConfig.StandardHeader.CalloutPtr(CB_AmdSetPcieEarlyConfig,
(uintptr_t)dev, (VOID*)NbConfigPtr);
}
/* Reset PCIE Cores, Training the Ports selected by port_enable of devicetree
* After this call EP are fully operational on particular NB
*/
nb_Pcie_Early_Init();
if (gConfig.StandardHeader.CalloutPtr != NULL) {
gConfig.StandardHeader.CalloutPtr(CB_AmdSetEarlyPostConfig, 0, (VOID*)NbConfigPtr);
}
nb_Early_Post_Init();
if (gConfig.StandardHeader.CalloutPtr != NULL) {
gConfig.StandardHeader.CalloutPtr(CB_AmdSetMidPostConfig, 0, (VOID*)NbConfigPtr);
}
nb_Mid_Post_Init();
nb_Pcie_Late_Init();
if (gConfig.StandardHeader.CalloutPtr != NULL) {
gConfig.StandardHeader.CalloutPtr(CB_AmdSetLatePostConfig, 0, (VOID*)NbConfigPtr);
}
nb_Late_Post_Init();
}
}
struct chip_operations northbridge_amd_cimx_rd890_ops = {
CHIP_NAME("ATI rd890")
.enable_dev = rd890_enable,
};
static void ioapic_init(struct device *dev)
{
void *ioapic_base;
pci_write_config32(dev, 0xF8, 0x1);
ioapic_base = (void *)(uintptr_t)(pci_read_config32(dev, 0xFC) & 0xfffffff0);
clear_ioapic(ioapic_base);
setup_ioapic(ioapic_base, 1);
}
static void rd890_read_resource(struct device *dev)
{
pci_dev_read_resources(dev);
/* rpr6.2.(1). Write the Base Address Register (BAR) */
pci_write_config32(dev, 0xF8, 0x1); /* set IOAPIC's index as 1 and make sure no one changes it. */
pci_get_resource(dev, 0xFC); /* APIC located in sr5690 */
compact_resources(dev);
}
/* If IOAPIC's index changes, we should replace the pci_dev_set_resource(). */
static void rd890_set_resources(struct device *dev)
{
pci_write_config32(dev, 0xF8, 0x1); /* set IOAPIC's index as 1 and make sure no one changes it. */
pci_dev_set_resources(dev);
}
static struct pci_operations lops_pci = {
.set_subsystem = pci_dev_set_subsystem,
};
static struct device_operations ht_ops = {
.read_resources = rd890_read_resource,
.set_resources = rd890_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = ioapic_init,
.scan_bus = 0,
.ops_pci = &lops_pci,
};
static const unsigned short driver_ids[] = {
PCI_DEVICE_ID_AMD_SR5690_HT,
PCI_DEVICE_ID_AMD_SR5670_HT,
PCI_DEVICE_ID_AMD_SR5650_HT,
PCI_DEVICE_ID_AMD_RD890TV_HT,
PCI_DEVICE_ID_AMD_RD890_HT,
PCI_DEVICE_ID_AMD_990FX_HT,
0
};
static const struct pci_driver ht_driver_sr5690 __pci_driver = {
.ops = &ht_ops,
.vendor = PCI_VENDOR_ID_ATI,
.devices= driver_ids,
};
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