--- /dev/null
+/*
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "NbPlatform.h"
+#include "rd890_cfg.h"
+#include "northbridge/amd/cimx/rd890/chip.h"
+#include "nbInitializer.h"
+#include <string.h>
+#include <arch/ioapic.h>
+
+#ifndef __PRE_RAM__
+#include <device/device.h>
+extern void set_pcie_reset(void *config);
+extern void set_pcie_dereset(void *config);
+
+/**
+ * Platform dependent configuration at ramstage
+ */
+static void nb_platform_config(device_t nb_dev, AMD_NB_CONFIG *NbConfigPtr)
+{
+ u16 i;
+ PCIE_CONFIG *pPcieConfig = NbConfigPtr->pPcieConfig;
+ //AMD_NB_CONFIG_BLOCK *ConfigPtr = GET_BLOCK_CONFIG_PTR(NbConfigPtr);
+ struct northbridge_amd_cimx_rd890_config *rd890_info = NULL;
+ DEFAULT_PLATFORM_CONFIG(platform_config);
+
+ /* update the platform depentent configuration by devicetree */
+ rd890_info = nb_dev->chip_info;
+ platform_config.PortEnableMap = rd890_info->port_enable;
+ if (rd890_info->gpp1_configuration == 0) {
+ platform_config.Gpp1Config = GFX_CONFIG_AAAA;
+ } else if (rd890_info->gpp1_configuration == 1) {
+ platform_config.Gpp1Config = GFX_CONFIG_AABB;
+ }
+ if (rd890_info->gpp2_configuration == 0) {
+ platform_config.Gpp2Config = GFX_CONFIG_AAAA;
+ } else if (rd890_info->gpp2_configuration == 1) {
+ platform_config.Gpp2Config = GFX_CONFIG_AABB;
+ }
+ platform_config.Gpp3aConfig = rd890_info->gpp3a_configuration;
+
+ if (platform_config.Gpp1Config != 0) {
+ pPcieConfig->CoreConfiguration[0] = platform_config.Gpp1Config;
+ }
+ if (platform_config.Gpp2Config != 0) {
+ pPcieConfig->CoreConfiguration[1] = platform_config.Gpp2Config;
+ }
+ if (platform_config.Gpp3aConfig != 0) {
+ pPcieConfig->CoreConfiguration[2] = platform_config.Gpp3aConfig;
+ }
+
+ pPcieConfig->TempMmioBaseAddress = (UINT16)(platform_config.TemporaryMmio >> 20);
+ for (i = 0; i <= MAX_CORE_ID; i++) {
+ NbConfigPtr->pPcieConfig->CoreSetting[i].SkipConfiguration = OFF;
+ NbConfigPtr->pPcieConfig->CoreSetting[i].PerformanceMode = OFF;
+ }
+ for (i = MIN_PORT_ID; i <= MAX_PORT_ID; i++) {
+ NbConfigPtr->pPcieConfig->PortConfiguration[i].PortLinkMode = PcieLinkModeGen2;
+ }
+
+ for (i = MIN_PORT_ID; i <= MAX_PORT_ID; i++) {
+ if ((platform_config.PortEnableMap & (1 << i)) != 0) {
+ pPcieConfig->PortConfiguration[i].PortPresent = ON;
+ if ((platform_config.PortGen1Map & (1 << i)) != 0) {
+ pPcieConfig->PortConfiguration[i].PortLinkMode = PcieLinkModeGen1;
+ }
+ if ((platform_config.PortHotplugMap & (1 << i)) != 0) {
+ u16 j;
+ pPcieConfig->PortConfiguration[j].PortHotplug = ON; /* Enable Hotplug */
+ /* Set Hotplug descriptor info */
+ for (j = 0; j < 8; j++) {
+ u32 PortDescriptor;
+ PortDescriptor = platform_config.PortHotplugDescriptors[j];
+ if ((PortDescriptor & 0xF) == j) {
+ pPcieConfig->ExtPortConfiguration[j].PortHotplugDevMap = (PortDescriptor >> 4) & 3;
+ pPcieConfig->ExtPortConfiguration[j].PortHotplugByteMap = (PortDescriptor >> 6) & 1;
+ break;
+ }
+ }
+ }
+ }
+ }
+}
+#endif // __PRE_RAM__
+
+/**
+ * @brief Entry point of Northbridge CIMx callout/CallBack
+ *
+ * prototype AGESA_STATUS (*CALLOUT_ENTRY) (UINT32 Param1, UINTN Param2, VOID* ConfigPtr);
+ *
+ * @param[in] u32 func Northbridge CIMx CallBackId
+ * @param[in] u32 data Northbridge Input Data.
+ * @param[in] AMD_NB_CONFIG *config Northbridge configuration structure pointer.
+ *
+ */
+static u32 rd890_callout_entry(u32 func, u32 data, void *config)
+{
+ u32 ret = 0;
+#ifndef __PRE_RAM__
+ device_t nb_dev = (device_t)data;
+#endif
+ AMD_NB_CONFIG *nbConfigPtr = (AMD_NB_CONFIG*)config;
+
+ switch (func) {
+ case PHCB_AmdPortTrainingCompleted:
+ break;
+
+ case PHCB_AmdPortResetDeassert:
+#ifndef __PRE_RAM__
+ set_pcie_dereset(config);
+#endif
+ break;
+
+ case PHCB_AmdPortResetAssert:
+#ifndef __PRE_RAM__
+ set_pcie_reset(config);
+#endif
+ break;
+
+ case PHCB_AmdPortResetSupported:
+ break;
+ case PHCB_AmdGeneratePciReset:
+ break;
+ case PHCB_AmdGetExclusionTable:
+ break;
+ case PHCB_AmdAllocateBuffer:
+ break;
+ case PHCB_AmdUpdateApicInterruptMapping:
+ break;
+ case PHCB_AmdFreeBuffer:
+ break;
+ case PHCB_AmdLocateBuffer:
+ break;
+ case PHCB_AmdReportEvent:
+ break;
+ case PHCB_AmdPcieAsmpInfo:
+ break;
+
+ case CB_AmdSetNbPorConfig:
+ break;
+ case CB_AmdSetHtConfig:
+ /*TODO: different HT path and deempasis for each NB */
+ nbConfigPtr->pHtConfig->NbTransmitterDeemphasis = DEFAULT_HT_DEEMPASIES;
+
+ break;
+ case CB_AmdSetPcieEarlyConfig:
+#ifndef __PRE_RAM__
+ nb_platform_config(nb_dev, nbConfigPtr);
+#endif
+ break;
+
+ case CB_AmdSetEarlyPostConfig:
+ break;
+
+ case CB_AmdSetMidPostConfig:
+ nbConfigPtr->pNbConfig->IoApicBaseAddress = RD890_IOAPIC_ADDR;
+#ifndef IOMMU_SUPPORT_DISABLE //TODO enable iommu
+ /* SBIOS must alloc 16K memory for IOMMU MMIO */
+ UINT32 MmcfgBarAddress; //using default IOmmuBaseAddress
+ LibNbPciRead(nbConfigPtr->NbPciAddress.AddressValue | 0x1C,
+ AccessWidth32,
+ &MmcfgBarAddress,
+ nbConfigPtr);
+ MmcfgBarAddress &= ~0xf;
+ if (MmcfgBarAddress != 0) {
+ nbConfigPtr->IommuBaseAddress = MmcfgBarAddress;
+ }
+ nbConfigPtr->IommuBaseAddress = 0; //disable iommu
+#endif
+ break;
+
+ case CB_AmdSetLatePostConfig:
+ break;
+
+ case CB_AmdSetRecoveryConfig:
+ break;
+ }
+
+ return ret;
+}
+
+
+/**
+ * @brief North Bridge CIMx configuration
+ *
+ * should be called before exeucte CIMx function.
+ * this function will be called in romstage and ramstage.
+ */
+void rd890_cimx_config(AMD_NB_CONFIG_BLOCK *pConfig, NB_CONFIG *nbConfig, HT_CONFIG *htConfig, PCIE_CONFIG *pcieConfig)
+{
+ u16 i = 0;
+ PCI_ADDR PciAddress;
+ u32 val, sbNode, sbLink;
+
+ if (!pConfig) {
+ return;
+ }
+
+ memset(pConfig, 0, sizeof(AMD_NB_CONFIG_BLOCK));
+ for (i = 0; i < MAX_NB_COUNT; i++) {
+ pConfig->Northbridges[i].pNbConfig = &nbConfig[i];
+ pConfig->Northbridges[i].pHtConfig = &htConfig[i];
+ pConfig->Northbridges[i].pPcieConfig = &pcieConfig[i];
+ pConfig->Northbridges[i].ConfigPtr = &pConfig;
+ }
+
+ /* Initialize all NB structures */
+ AmdInitializer(pConfig);
+
+ pConfig->NumberOfNorthbridges = MAX_NB_COUNT - 1; /* Support limited to primary NB only located at 0:0:0 */
+ //pConfig->StandardHeader.ImageBasePtr = CIMX_B2_IMAGE_BASE_ADDRESS;
+ pConfig->StandardHeader.PcieBasePtr = (VOID *)PCIEX_BASE_ADDRESS;
+ pConfig->StandardHeader.CalloutPtr = &rd890_callout_entry;
+
+ /*
+ * PCI Address to Access NB. Depends on HT topology and configuration for multi NB platform.
+ * Always 0:0:0 on single NB platform.
+ */
+ pConfig->Northbridges[0].NbPciAddress.AddressValue = MAKE_SBDFO(0, 0x0, 0x0, 0x0, 0x0);
+
+ /* Set HT path to NB by SbNode and SbLink */
+ PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB, FUNC_0, 0x60);
+ LibNbPciRead(PciAddress.AddressValue, AccessWidth32, &val, &(pConfig->Northbridges[0]));
+ sbNode = (val >> 8) & 0x07;
+ PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB, FUNC_0, 0x64);
+ LibNbPciRead(PciAddress.AddressValue, AccessWidth32, &val, &(pConfig->Northbridges[0]));
+ sbLink = (val >> 8) & 0x07; //assum ganged
+ pConfig->Northbridges[0].NbHtPath.NodeID = sbNode;
+ pConfig->Northbridges[0].NbHtPath.LinkID = sbLink;
+ //TODO: other NBs
+
+#ifndef __PRE_RAM__
+ /* If temporrary MMIO enable set up CPU MMIO */
+ for (i = 0; i <= pConfig->NumberOfNorthbridges; i++) {
+ UINT32 MmioBase;
+ UINT32 LinkId;
+ UINT32 SubLinkId;
+ MmioBase = pConfig->Northbridges[i].pPcieConfig->TempMmioBaseAddress;
+ if (MmioBase != 0) {
+ LinkId = pConfig->Northbridges[i].NbHtPath.LinkID & 0xf;
+ SubLinkId = ((pConfig->Northbridges[i].NbHtPath.LinkID & 0xF0) == 0x20) ? 1 : 0;
+ /* Set Limit */
+ LibNbPciRMW(MAKE_SBDFO (0, 0, 0x18, 0x1, (i * 4) + 0x84),
+ AccessWidth32,
+ 0x0,
+ ((MmioBase << 12) + 0xF00) | (LinkId << 4) | (SubLinkId << 6),
+ &(pConfig->Northbridges[i]));
+ /* Set Base */
+ LibNbPciRMW(MAKE_SBDFO (0, 0, 0x18, 0x1, (i * 4) + 0x80),
+ AccessWidth32,
+ 0x0,
+ (MmioBase << 12) | 0x3,
+ &(pConfig->Northbridges[i]));
+ }
+ }
+#endif
+}
+
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