coreboot-kgpe-d16/src/soc/intel/skylake/chip.c

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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <bootmode.h>
#include <bootstate.h>
#include <cbmem.h>
#include <fsp/api.h>
#include <arch/acpi.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci_ids.h>
#include <fsp/util.h>
#include <intelblocks/cfg.h>
#include <intelblocks/itss.h>
#include <intelblocks/lpc_lib.h>
#include <intelblocks/mp_init.h>
#include <intelblocks/pcie_rp.h>
#include <intelblocks/xdci.h>
#include <intelblocks/p2sb.h>
#include <intelpch/lockdown.h>
#include <romstage_handoff.h>
#include <soc/acpi.h>
#include <soc/intel/common/vbt.h>
#include <soc/interrupt.h>
#include <soc/iomap.h>
#include <soc/irq.h>
#include <soc/itss.h>
#include <soc/pci_devs.h>
#include <soc/ramstage.h>
#include <soc/systemagent.h>
#include <string.h>
#include "chip.h"
static const struct pcie_rp_group pch_lp_rp_groups[] = {
{ .slot = PCH_DEV_SLOT_PCIE, .count = 8 },
{ .slot = PCH_DEV_SLOT_PCIE_1, .count = 4 },
{ 0 }
};
static const struct pcie_rp_group pch_h_rp_groups[] = {
{ .slot = PCH_DEV_SLOT_PCIE, .count = 8 },
{ .slot = PCH_DEV_SLOT_PCIE_1, .count = 8 },
/* Sunrise Point PCH-H actually only has 4 ports in the
third group. But that would require a runtime check
and probing 4 non-existent ports shouldn't hurt. */
{ .slot = PCH_DEV_SLOT_PCIE_2, .count = 8 },
{ 0 }
};
void soc_init_pre_device(void *chip_info)
{
/* Snapshot the current GPIO IRQ polarities. FSP is setting a
* default policy that doesn't honor boards' requirements. */
itss_snapshot_irq_polarities(GPIO_IRQ_START, GPIO_IRQ_END);
/* Perform silicon specific init. */
fsp_silicon_init(romstage_handoff_is_resume());
/*
* Keep the P2SB device visible so it and the other devices are
* visible in coreboot for driver support and PCI resource allocation.
* There is no UPD setting for this.
*/
p2sb_unhide();
/* Restore GPIO IRQ polarities back to previous settings. */
itss_restore_irq_polarities(GPIO_IRQ_START, GPIO_IRQ_END);
/* swap enabled PCI ports in device tree if needed */
if (CONFIG(SKYLAKE_SOC_PCH_H))
pcie_rp_update_devicetree(pch_h_rp_groups);
else
pcie_rp_update_devicetree(pch_lp_rp_groups);
}
void soc_fsp_load(void)
{
fsps_load(romstage_handoff_is_resume());
}
static void pci_domain_set_resources(struct device *dev)
{
assign_resources(dev->link_list);
}
static struct device_operations pci_domain_ops = {
.read_resources = &pci_domain_read_resources,
.set_resources = &pci_domain_set_resources,
.scan_bus = &pci_domain_scan_bus,
#if CONFIG(HAVE_ACPI_TABLES)
.write_acpi_tables = &northbridge_write_acpi_tables,
.acpi_name = &soc_acpi_name,
#endif
};
static struct device_operations cpu_bus_ops = {
.read_resources = DEVICE_NOOP,
.set_resources = DEVICE_NOOP,
#if CONFIG(HAVE_ACPI_TABLES)
.acpi_fill_ssdt = generate_cpu_entries,
#endif
};
static void soc_enable(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;
}
struct chip_operations soc_intel_skylake_ops = {
CHIP_NAME("Intel 6th Gen")
.enable_dev = &soc_enable,
.init = &soc_init_pre_device,
};
/* UPD parameters to be initialized before SiliconInit */
void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd)
{
FSP_S_CONFIG *params = &supd->FspsConfig;
FSP_S_TEST_CONFIG *tconfig = &supd->FspsTestConfig;
struct soc_intel_skylake_config *config;
struct device *dev;
uintptr_t vbt_data = (uintptr_t)vbt_get();
int i;
config = config_of_soc();
mainboard_silicon_init_params(params);
/* Set PsysPmax if it is available from DT */
if (config->psys_pmax) {
/* PsysPmax is in unit of 1/8 Watt */
tconfig->PsysPmax = config->psys_pmax * 8;
printk(BIOS_DEBUG, "psys_pmax = %d\n", tconfig->PsysPmax);
}
params->GraphicsConfigPtr = (u32) vbt_data;
for (i = 0; i < ARRAY_SIZE(config->usb2_ports); i++) {
params->PortUsb20Enable[i] =
config->usb2_ports[i].enable;
params->Usb2OverCurrentPin[i] =
config->usb2_ports[i].ocpin;
params->Usb2AfePetxiset[i] =
config->usb2_ports[i].pre_emp_bias;
params->Usb2AfeTxiset[i] =
config->usb2_ports[i].tx_bias;
params->Usb2AfePredeemp[i] =
config->usb2_ports[i].tx_emp_enable;
params->Usb2AfePehalfbit[i] =
config->usb2_ports[i].pre_emp_bit;
}
for (i = 0; i < ARRAY_SIZE(config->usb3_ports); i++) {
params->PortUsb30Enable[i] = config->usb3_ports[i].enable;
params->Usb3OverCurrentPin[i] = config->usb3_ports[i].ocpin;
if (config->usb3_ports[i].tx_de_emp) {
params->Usb3HsioTxDeEmphEnable[i] = 1;
params->Usb3HsioTxDeEmph[i] =
config->usb3_ports[i].tx_de_emp;
}
if (config->usb3_ports[i].tx_downscale_amp) {
params->Usb3HsioTxDownscaleAmpEnable[i] = 1;
params->Usb3HsioTxDownscaleAmp[i] =
config->usb3_ports[i].tx_downscale_amp;
}
}
memcpy(params->SataPortsEnable, config->SataPortsEnable,
sizeof(params->SataPortsEnable));
memcpy(params->SataPortsDevSlp, config->SataPortsDevSlp,
sizeof(params->SataPortsDevSlp));
memcpy(params->SataPortsHotPlug, config->SataPortsHotPlug,
sizeof(params->SataPortsHotPlug));
memcpy(params->SataPortsSpinUp, config->SataPortsSpinUp,
sizeof(params->SataPortsSpinUp));
memcpy(params->PcieRpClkReqSupport, config->PcieRpClkReqSupport,
sizeof(params->PcieRpClkReqSupport));
memcpy(params->PcieRpClkReqNumber, config->PcieRpClkReqNumber,
sizeof(params->PcieRpClkReqNumber));
memcpy(params->PcieRpAdvancedErrorReporting,
config->PcieRpAdvancedErrorReporting,
sizeof(params->PcieRpAdvancedErrorReporting));
soc/intel/skylake: Add config for enabling LTR for PCIe Root port There are a lot errors reported by AER driver for root port 0. The erors are being caused by an unsupported request from the device to the upstream port. Enabling LTR on the root port stops these errors, it is because LTR is enabled on the device side but not on the root port and hence root port was logging the LTR messages from the device as unsupported. The PCIe base spec (v3.1a) section 6.18 also states that: LTR support is discovered and enabled through reporting and control registers described in Chapter 7. Software must not enable LTR in an Endpoint unless the Root Complex and all intermediate Switches indicate support for LTR. Note that it is not required that all Endpoints support LTR to permit enabling LTR in those Endpoints that do support it. When enabling the LTR mechanism in a hierarchy, devices closest to the Root Port must be enabled first. If an LTR Message is received at a Downstream Port that does not support LTR or if LTR is not enabled, the Message must be treated as an Unsupported Request. FSP has a UPD for enabling/disabling LTR on root port, use the same for configuring LTR on PCIe root ports. BUG=b:65570878 TEST=After enbaling LTR on port 0 on the MB devicetree, No errors reported by AER driver for root port 0. Change-Id: Ica97faa78fcd991dad63ae54d2ada82194b4202a Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Reviewed-on: https://review.coreboot.org/21547 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-09-15 22:24:20 +02:00
memcpy(params->PcieRpLtrEnable, config->PcieRpLtrEnable,
sizeof(params->PcieRpLtrEnable));
memcpy(params->PcieRpHotPlug, config->PcieRpHotPlug,
sizeof(params->PcieRpHotPlug));
/*
* PcieRpClkSrcNumber UPD is set to clock source number(0-6) for
* all the enabled PCIe root ports, invalid(0x1F) is set for
* disabled PCIe root ports.
*/
for (i = 0; i < CONFIG_MAX_ROOT_PORTS; i++) {
if (config->PcieRpClkReqSupport[i])
params->PcieRpClkSrcNumber[i] =
config->PcieRpClkSrcNumber[i];
else
params->PcieRpClkSrcNumber[i] = 0x1F;
}
/* disable Legacy PME */
memset(params->PcieRpPmSci, 0, sizeof(params->PcieRpPmSci));
/* Legacy 8254 timer support */
params->Early8254ClockGatingEnable = !CONFIG_USE_LEGACY_8254_TIMER;
memcpy(params->SerialIoDevMode, config->SerialIoDevMode,
sizeof(params->SerialIoDevMode));
params->PchCio2Enable = config->Cio2Enable;
params->SaImguEnable = config->SaImguEnable;
params->Heci3Enabled = config->Heci3Enabled;
params->LogoPtr = config->LogoPtr;
params->LogoSize = config->LogoSize;
params->CpuConfig.Bits.VmxEnable = CONFIG(ENABLE_VMX);
params->PchPmWoWlanEnable = config->PchPmWoWlanEnable;
params->PchPmWoWlanDeepSxEnable = config->PchPmWoWlanDeepSxEnable;
params->PchPmLanWakeFromDeepSx = config->WakeConfigPcieWakeFromDeepSx;
params->PchLanEnable = config->EnableLan;
if (config->EnableLan) {
params->PchLanLtrEnable = config->EnableLanLtr;
params->PchLanK1OffEnable = config->EnableLanK1Off;
params->PchLanClkReqSupported = config->LanClkReqSupported;
params->PchLanClkReqNumber = config->LanClkReqNumber;
}
params->SataSalpSupport = config->SataSalpSupport;
params->SsicPortEnable = config->SsicPortEnable;
params->ScsEmmcEnabled = config->ScsEmmcEnabled;
params->ScsEmmcHs400Enabled = config->ScsEmmcHs400Enabled;
params->ScsSdCardEnabled = config->ScsSdCardEnabled;
if (!!params->ScsEmmcHs400Enabled && !!config->EmmcHs400DllNeed) {
params->PchScsEmmcHs400DllDataValid =
!!config->EmmcHs400DllNeed;
params->PchScsEmmcHs400RxStrobeDll1 =
config->ScsEmmcHs400RxStrobeDll1;
params->PchScsEmmcHs400TxDataDll =
config->ScsEmmcHs400TxDataDll;
}
/* If ISH is enabled, enable ISH elements */
dev = pcidev_path_on_root(PCH_DEVFN_ISH);
params->PchIshEnable = dev ? dev->enabled : 0;
params->PchHdaEnable = config->EnableAzalia;
params->PchHdaVcType = config->PchHdaVcType;
params->PchHdaIoBufferOwnership = config->IoBufferOwnership;
params->PchHdaDspEnable = config->DspEnable;
params->Device4Enable = config->Device4Enable;
params->SataEnable = config->EnableSata;
params->SataMode = config->SataMode;
params->SataSpeedLimit = config->SataSpeedLimit;
params->SataPwrOptEnable = config->SataPwrOptEnable;
params->EnableTcoTimer = !config->PmTimerDisabled;
tconfig->PchLockDownGlobalSmi = config->LockDownConfigGlobalSmi;
tconfig->PchLockDownRtcLock = config->LockDownConfigRtcLock;
tconfig->PowerLimit4 = config->PowerLimit4;
tconfig->SataTestMode = config->SataTestMode;
/*
* To disable HECI, the Psf needs to be left unlocked
* by FSP till end of post sequence. Based on the devicetree
* setting, we set the appropriate PsfUnlock policy in FSP,
* do the changes and then lock it back in coreboot during finalize.
*/
tconfig->PchSbAccessUnlock = (config->HeciEnabled == 0) ? 1 : 0;
if (get_lockdown_config() == CHIPSET_LOCKDOWN_COREBOOT) {
tconfig->PchLockDownBiosInterface = 0;
params->PchLockDownBiosLock = 0;
params->PchLockDownSpiEiss = 0;
/*
* Skip Spi Flash Lockdown from inside FSP.
* Making this config "0" means FSP won't set the FLOCKDN bit
* of SPIBAR + 0x04 (i.e., Bit 15 of BIOS_HSFSTS_CTL).
* So, it becomes coreboot's responsibility to set this bit
* before end of POST for security concerns.
*/
params->SpiFlashCfgLockDown = 0;
}
/* only replacing preexisting subsys ID defaults when non-zero */
if (CONFIG_SUBSYSTEM_VENDOR_ID != 0) {
params->DefaultSvid = CONFIG_SUBSYSTEM_VENDOR_ID;
params->PchSubSystemVendorId = CONFIG_SUBSYSTEM_VENDOR_ID;
}
if (CONFIG_SUBSYSTEM_DEVICE_ID != 0) {
params->DefaultSid = CONFIG_SUBSYSTEM_DEVICE_ID;
params->PchSubSystemId = CONFIG_SUBSYSTEM_DEVICE_ID;
}
params->PchPmWolEnableOverride = config->WakeConfigWolEnableOverride;
params->PchPmPcieWakeFromDeepSx = config->WakeConfigPcieWakeFromDeepSx;
params->PchPmDeepSxPol = config->PmConfigDeepSxPol;
params->PchPmSlpS0Enable = config->s0ix_enable;
params->PchPmSlpS3MinAssert = config->PmConfigSlpS3MinAssert;
params->PchPmSlpS4MinAssert = config->PmConfigSlpS4MinAssert;
params->PchPmSlpSusMinAssert = config->PmConfigSlpSusMinAssert;
params->PchPmSlpAMinAssert = config->PmConfigSlpAMinAssert;
params->PchPmLpcClockRun = config->PmConfigPciClockRun;
params->PchPmSlpStrchSusUp = config->PmConfigSlpStrchSusUp;
params->PchPmPwrBtnOverridePeriod =
config->PmConfigPwrBtnOverridePeriod;
params->PchPmPwrCycDur = config->PmConfigPwrCycDur;
/* Indicate whether platform supports Voltage Margining */
params->PchPmSlpS0VmEnable = config->PchPmSlpS0VmEnable;
params->PchSirqEnable = config->serirq_mode != SERIRQ_OFF;
params->PchSirqMode = config->serirq_mode == SERIRQ_CONTINUOUS;
params->CpuConfig.Bits.SkipMpInit = !CONFIG_USE_INTEL_FSP_MP_INIT;
for (i = 0; i < ARRAY_SIZE(config->i2c_voltage); i++)
params->SerialIoI2cVoltage[i] = config->i2c_voltage[i];
for (i = 0; i < ARRAY_SIZE(config->domain_vr_config); i++)
fill_vr_domain_config(params, i, &config->domain_vr_config[i]);
/* Show SPI controller if enabled in devicetree.cb */
dev = pcidev_path_on_root(PCH_DEVFN_SPI);
params->ShowSpiController = dev ? dev->enabled : 0;
/* Enable xDCI controller if enabled in devicetree and allowed */
dev = pcidev_path_on_root(PCH_DEVFN_USBOTG);
if (dev) {
if (!xdci_can_enable())
dev->enabled = 0;
params->XdciEnable = dev->enabled;
} else {
params->XdciEnable = 0;
}
/* Enable or disable Gaussian Mixture Model in devicetree */
dev = pcidev_path_on_root(SA_DEVFN_GMM);
params->GmmEnable = dev ? dev->enabled : 0;
/*
* Send VR specific mailbox commands:
* 000b - no VR specific command sent
* 001b - VR mailbox command specifically for the MPS IMPV8 VR
* will be sent
* 010b - VR specific command sent for PS4 exit issue
* 100b - VR specific command sent for MPS VR decay issue
*/
params->SendVrMbxCmd1 = config->SendVrMbxCmd;
/*
* Activates VR mailbox command for Intersil VR C-state issues.
* 0 - no mailbox command sent.
* 1 - VR mailbox command sent for IA/GT rails only.
* 2 - VR mailbox command sent for IA/GT/SA rails.
*/
params->IslVrCmd = config->IslVrCmd;
/* Acoustic Noise Mitigation */
params->AcousticNoiseMitigation = config->AcousticNoiseMitigation;
params->SlowSlewRateForIa = config->SlowSlewRateForIa;
params->SlowSlewRateForGt = config->SlowSlewRateForGt;
params->SlowSlewRateForSa = config->SlowSlewRateForSa;
params->FastPkgCRampDisableIa = config->FastPkgCRampDisableIa;
params->FastPkgCRampDisableGt = config->FastPkgCRampDisableGt;
params->FastPkgCRampDisableSa = config->FastPkgCRampDisableSa;
/* Enable PMC XRAM read */
tconfig->PchPmPmcReadDisable = config->PchPmPmcReadDisable;
/* Enable/Disable EIST */
tconfig->Eist = config->eist_enable;
/* Set TccActivationOffset */
tconfig->TccActivationOffset = config->tcc_offset;
/* Already handled in coreboot code, so tell FSP to ignore UPDs */
params->PchIoApicBdfValid = 0;
/* Enable VT-d and X2APIC */
if (!config->ignore_vtd && soc_is_vtd_capable()) {
params->VtdBaseAddress[0] = GFXVT_BASE_ADDRESS;
params->VtdBaseAddress[1] = VTVC0_BASE_ADDRESS;
params->X2ApicOptOut = 0;
tconfig->VtdDisable = 0;
}
dev = pcidev_path_on_root(SA_DEVFN_IGD);
if (CONFIG(RUN_FSP_GOP) && dev && dev->enabled)
params->PeiGraphicsPeimInit = 1;
else
params->PeiGraphicsPeimInit = 0;
soc_irq_settings(params);
}
/* Mainboard GPIO Configuration */
__weak void mainboard_silicon_init_params(FSP_S_CONFIG *params)
{
printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__);
}
/* Handle FSP logo params */
const struct cbmem_entry *soc_load_logo(FSPS_UPD *supd)
{
return fsp_load_logo(&supd->FspsConfig.LogoPtr, &supd->FspsConfig.LogoSize);
}