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/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/mmio.h>
#include <bootstate.h>
#include <cpu/x86/smm.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <acpi/acpi_gnvs.h>
#include <amdblocks/amd_pci_util.h>
#include <amdblocks/aoac.h>
#include <amdblocks/acpimmio.h>
#include <amdblocks/acpi.h>
#include <amdblocks/smi.h>
#include <soc/southbridge.h>
#include <soc/smi.h>
#include <soc/amd_pci_int_defs.h>
#include <soc/pci_devs.h>
#include <agesa_headers.h>
#include <soc/acpi.h>
#include <soc/aoac_defs.h>
#include <soc/nvs.h>
#include <types.h>
/*
* Table of APIC register index and associated IRQ name. Using IDX_XXX_NAME
* provides a visible association with the index, therefore helping
* maintainability of table. If a new index/name is defined in
* amd_pci_int_defs.h, just add the pair at the end of this table.
* Order is not important.
*/
static const struct irq_idx_name irq_association[] = {
{ PIRQ_A, "INTA#" },
{ PIRQ_B, "INTB#" },
{ PIRQ_C, "INTC#" },
{ PIRQ_D, "INTD#" },
{ PIRQ_E, "INTE#" },
{ PIRQ_F, "INTF#" },
{ PIRQ_G, "INTG#" },
{ PIRQ_H, "INTH#" },
{ PIRQ_MISC, "Misc" },
{ PIRQ_MISC0, "Misc0" },
{ PIRQ_MISC1, "Misc1" },
{ PIRQ_MISC2, "Misc2" },
{ PIRQ_SIRQA, "Ser IRQ INTA" },
{ PIRQ_SIRQB, "Ser IRQ INTB" },
{ PIRQ_SIRQC, "Ser IRQ INTC" },
{ PIRQ_SIRQD, "Ser IRQ INTD" },
{ PIRQ_SCI, "SCI" },
{ PIRQ_SMBUS, "SMBUS" },
{ PIRQ_ASF, "ASF" },
{ PIRQ_HDA, "HDA" },
{ PIRQ_FC, "FC" },
{ PIRQ_PMON, "PerMon" },
{ PIRQ_SD, "SD" },
{ PIRQ_SDIO, "SDIOt" },
{ PIRQ_EHCI, "EHCI" },
{ PIRQ_XHCI, "XHCI" },
{ PIRQ_SATA, "SATA" },
{ PIRQ_GPIO, "GPIO" },
{ PIRQ_I2C0, "I2C0" },
{ PIRQ_I2C1, "I2C1" },
{ PIRQ_I2C2, "I2C2" },
{ PIRQ_I2C3, "I2C3" },
{ PIRQ_UART0, "UART0" },
{ PIRQ_UART1, "UART1" },
};
const struct irq_idx_name *sb_get_apic_reg_association(size_t *size)
{
*size = ARRAY_SIZE(irq_association);
return irq_association;
}
static void fch_init_acpi_ports(void)
{
u32 reg;
/* We use some of these ports in SMM regardless of whether or not
* ACPI tables are generated. Enable these ports indiscriminately.
*/
pm_write16(PM_EVT_BLK, ACPI_PM_EVT_BLK);
pm_write16(PM1_CNT_BLK, ACPI_PM1_CNT_BLK);
pm_write16(PM_TMR_BLK, ACPI_PM_TMR_BLK);
pm_write16(PM_GPE0_BLK, ACPI_GPE0_BLK);
/* CpuControl is in \_SB.CP00, 6 bytes */
pm_write16(PM_CPU_CTRL, ACPI_CPU_CONTROL);
if (CONFIG(HAVE_SMI_HANDLER)) {
/* APMC - SMI Command Port */
pm_write16(PM_ACPI_SMI_CMD, APM_CNT);
configure_smi(SMITYPE_SMI_CMD_PORT, SMI_MODE_SMI);
/* SMI on SlpTyp requires sending SMI before completion
* response of the I/O write. The BKDG also specifies
* clearing ForceStpClkRetry for SMI trapping.
*/
reg = pm_read32(PM_PCI_CTRL);
reg |= FORCE_SLPSTATE_RETRY;
reg &= ~FORCE_STPCLK_RETRY;
pm_write32(PM_PCI_CTRL, reg);
/* Disable SlpTyp feature */
reg = pm_read8(PM_RST_CTRL1);
reg &= ~SLPTYPE_CONTROL_EN;
pm_write8(PM_RST_CTRL1, reg);
configure_smi(SMITYPE_SLP_TYP, SMI_MODE_SMI);
} else {
pm_write16(PM_ACPI_SMI_CMD, 0);
}
/* Decode ACPI registers and enable standard features */
pm_write8(PM_ACPI_CONF, PM_ACPI_DECODE_STD |
PM_ACPI_GLOBAL_EN |
PM_ACPI_RTC_EN_EN |
PM_ACPI_TIMER_EN_EN);
}
void fch_init(void *chip_info)
{
fch_init_acpi_ports();
}
static void set_sb_aoac(struct aoac_devs *aoac)
{
const struct device *sd, *sata;
aoac->ic0e = is_aoac_device_enabled(FCH_AOAC_DEV_I2C0);
aoac->ic1e = is_aoac_device_enabled(FCH_AOAC_DEV_I2C1);
aoac->ic2e = is_aoac_device_enabled(FCH_AOAC_DEV_I2C2);
aoac->ic3e = is_aoac_device_enabled(FCH_AOAC_DEV_I2C3);
aoac->ut0e = is_aoac_device_enabled(FCH_AOAC_DEV_UART0);
aoac->ut1e = is_aoac_device_enabled(FCH_AOAC_DEV_UART1);
aoac->ehce = is_aoac_device_enabled(FCH_AOAC_DEV_USB2);
aoac->xhce = is_aoac_device_enabled(FCH_AOAC_DEV_USB3);
/* Rely on these being in sync with devicetree */
sd = pcidev_path_on_root(SD_DEVFN);
aoac->sd_e = sd && sd->enabled ? 1 : 0;
sata = pcidev_path_on_root(SATA_DEVFN);
aoac->st_e = sata && sata->enabled ? 1 : 0;
aoac->espi = 1;
}
static void set_sb_gnvs(struct global_nvs *gnvs)
{
uintptr_t amdfw_rom;
uintptr_t xhci_fw;
uintptr_t fwaddr;
size_t fwsize;
amdfw_rom = 0x20000 - (0x80000 << CONFIG_AMD_FWM_POSITION_INDEX);
xhci_fw = read32p(amdfw_rom + XHCI_FW_SIG_OFFSET);
fwaddr = 2 + read16p(xhci_fw + XHCI_FW_ADDR_OFFSET + XHCI_FW_BOOTRAM_SIZE);
fwsize = read16p(xhci_fw + XHCI_FW_SIZE_OFFSET + XHCI_FW_BOOTRAM_SIZE);
gnvs->fw00 = 0;
gnvs->fw01 = ((32 * KiB) << 16) + 0;
gnvs->fw02 = fwaddr + XHCI_FW_BOOTRAM_SIZE;
gnvs->fw03 = fwsize << 16;
/* TODO: This might break if the OS decides to re-allocate the PCI BARs. */
gnvs->eh10 = pci_read_config32(SOC_EHCI1_DEV, PCI_BASE_ADDRESS_0)
& ~PCI_BASE_ADDRESS_MEM_ATTR_MASK;
}
void fch_final(void *chip_info)
{
/* TODO: The AOAC states and EHCI/XHCI addresses should be moved out of GNVS */
struct global_nvs *gnvs = acpi_get_gnvs();
if (gnvs) {
set_sb_aoac(&gnvs->aoac);
set_sb_gnvs(gnvs);
}
}
/*
* Update the PCI devices with a valid IRQ number
* that is set in the mainboard PCI_IRQ structures.
*/
static void set_pci_irqs(void *unused)
{
/* Write PCI_INTR regs 0xC00/0xC01 */
write_pci_int_table();
/* Write IRQs for all devicetree enabled devices */
write_pci_cfg_irqs();
}
/*
* Hook this function into the PCI state machine
* on entry into BS_DEV_ENABLE.
*/
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, set_pci_irqs, NULL);
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