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/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/ioapic.h>
#include <console/console.h>
#include <console/debug.h>
#include <cpu/x86/mp.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_def.h>
#include <gpio.h>
#include <intelblocks/acpi.h>
#include <intelblocks/lpc_lib.h>
#include <intelblocks/p2sb.h>
#include <soc/acpi.h>
#include <soc/chip_common.h>
#include <soc/pch.h>
#include <soc/soc_pch.h>
#include <soc/ramstage.h>
#include <soc/p2sb.h>
#include <soc/soc_util.h>
#include <soc/util.h>
#include <soc/pci_devs.h>
/* UPD parameters to be initialized before SiliconInit */
void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd)
{
mainboard_silicon_init_params(silupd);
}
static struct device_operations pci_domain_ops = {
.read_resources = iio_pci_domain_read_resources,
.set_resources = pci_domain_set_resources,
.scan_bus = iio_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 = noop_read_resources,
.set_resources = noop_set_resources,
.init = mp_cpu_bus_init,
.acpi_fill_ssdt = generate_cpu_entries,
};
struct pci_operations soc_pci_ops = {
.set_subsystem = pci_dev_set_subsystem,
};
static void chip_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;
attach_iio_stacks(dev);
} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
dev->ops = &cpu_bus_ops;
} else if (dev->path.type == DEVICE_PATH_GPIO) {
block_gpio_enable(dev);
}
}
static void iio_write_mask(u16 bus, u16 dev, u8 func)
{
pci_devfn_t device = PCI_DEV(bus, dev, func);
u32 val = pci_s_read_config32(device, IIO_XPUNCCERRMSK_REG);
val |= (SENT_PCIE_UNSUPP_MASK | RCVD_PCIE_CA_STS_MASK | RCVD_PCIE_UR_STS_MASK);
pci_s_write_config32(device, IIO_XPUNCCERRMSK_REG, val);
val = pci_s_read_config32(device, RP_UNCERRMSK);
val |= (SURPRISE_DWN_ERR_MSK | UNSUPPORTED_REQ_ERR_MSK);
pci_s_write_config32(device, RP_UNCERRMSK, val);
}
static void iio_dmi_en_masks(void)
{
pci_devfn_t device;
u32 val;
device = PCI_DEV(DMI_BUS_INDEX, DMI_DEV, DMI_FUNC);
val = pci_s_read_config32(device, IIO_XPUNCCERRMSK_REG);
val |= (SENT_PCIE_UNSUPP_MASK | RCVD_PCIE_CA_STS_MASK | RCVD_PCIE_UR_STS_MASK);
pci_s_write_config32(device, IIO_XPUNCCERRMSK_REG, val);
val = pci_s_read_config32(device, DMI_UNCERRMSK);
val |= (ECRC_ERR | MLFRMD_TLP | RCV_BUF_OVRFLOW | FLOW_CNTR | POISON_TLP | DLL_PRT_ERR);
pci_s_write_config32(device, DMI_UNCERRMSK, val);
}
static void iio_enable_masks(void)
{
struct iiostack_resource iio = {0};
get_iiostack_info(&iio);
int i, k;
for (i = 0; i < iio.no_of_stacks; i++) {
const STACK_RES *st = &iio.res[i];
if (st->BusBase > 0 && st->BusBase != 0xff) {
for (k = 0; k < DEVICES_PER_IIO_STACK; k++) {
printk(BIOS_DEBUG, "%s: bus:%x dev:%x func:%x\n", __func__,
st->BusBase, k, 0);
iio_write_mask(st->BusBase, k, 0);
}
}
}
iio_dmi_en_masks();
}
static void set_pcu_locks(void)
{
struct device *dev = NULL;
while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR0_DEVID, dev))) {
printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev));
pci_or_config32(dev, PCU_CR0_P_STATE_LIMITS, P_STATE_LIMITS_LOCK);
pci_or_config32(dev, PCU_CR0_PACKAGE_RAPL_LIMIT_UPR,
PKG_PWR_LIM_LOCK_UPR);
pci_or_config32(dev, PCU_CR0_TURBO_ACTIVATION_RATIO,
TURBO_ACTIVATION_RATIO_LOCK);
}
dev = NULL;
while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR1_DEVID, dev))) {
printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev));
pci_or_config32(dev, PCU_CR1_SAPMCTL, SAPMCTL_LOCK_MASK);
}
dev = NULL;
while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR2_DEVID, dev))) {
printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev));
pci_or_config32(dev, PCU_CR2_DRAM_PLANE_POWER_LIMIT,
PP_PWR_LIM_LOCK);
pci_or_config32(dev, PCU_CR2_DRAM_POWER_INFO_UPR,
DRAM_POWER_INFO_LOCK_UPR);
}
dev = NULL;
while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR3_DEVID, dev))) {
printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev));
pci_or_config32(dev, PCU_CR3_CONFIG_TDP_CONTROL, TDP_LOCK);
pci_or_config32(dev, PCU_CR3_FLEX_RATIO, OC_LOCK);
}
}
static void set_imc_locks(void)
{
struct device *dev = 0;
while ((dev = dev_find_device(PCI_VID_INTEL, IMC_M2MEM_DEVID, dev)))
pci_or_config32(dev, IMC_M2MEM_TIMEOUT, TIMEOUT_LOCK);
}
static void set_upi_locks(void)
{
struct device *dev = 0;
while ((dev = dev_find_device(PCI_VID_INTEL, UPI_LL_CR_DEVID, dev)))
pci_or_config32(dev, UPI_LL_CR_KTIMISCMODLCK, KTIMISCMODLCK_LOCK);
}
static void chip_final(void *data)
{
/* Lock SBI */
pci_or_config32(PCH_DEV_P2SB, P2SBC, SBILOCK);
/* LOCK PAM */
pci_or_config32(pcidev_path_on_root(PCI_DEVFN(0, 0)), 0x80, 1 << 0);
set_pcu_locks();
set_imc_locks();
set_upi_locks();
p2sb_hide();
iio_enable_masks();
set_bios_init_completion();
}
static void chip_init(void *data)
{
printk(BIOS_DEBUG, "coreboot: calling fsp_silicon_init\n");
fsp_silicon_init();
override_hpet_ioapic_bdf();
pch_enable_ioapic();
pch_lock_dmictl();
p2sb_unhide();
}
struct chip_operations soc_intel_xeon_sp_cpx_ops = {
.name = "Intel Cooper Lake-SP",
.enable_dev = chip_enable_dev,
.init = chip_init,
.final = chip_final,
};
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