void intel_sandybridge_finalize_smm(void)
{
pci_or_config16(PCI_DEV_SNB, 0x50, 1 << 0); /* GGC */
pci_or_config16(PCI_DEV_SNB, 0x58, 1 << 2); /* PAVP Lock */
pci_or_config32(PCI_DEV_SNB, 0x5c, 1 << 0); /* DPR */
pci_or_config32(PCI_DEV_SNB, 0x78, 1 << 10); /* ME */
pci_or_config32(PCI_DEV_SNB, 0x90, 1 << 0); /* REMAPBASE */
pci_or_config32(PCI_DEV_SNB, 0x98, 1 << 0); /* REMAPLIMIT */
pci_or_config32(PCI_DEV_SNB, 0xa0, 1 << 0); /* TOM */
pci_or_config32(PCI_DEV_SNB, 0xa8, 1 << 0); /* TOUUD */
pci_or_config32(PCI_DEV_SNB, 0xb0, 1 << 0); /* BDSM */
pci_or_config32(PCI_DEV_SNB, 0xb4, 1 << 0); /* BGSM */
pci_or_config32(PCI_DEV_SNB, 0xb8, 1 << 0); /* TSEGMB */
pci_or_config32(PCI_DEV_SNB, 0xbc, 1 << 0); /* TOLUD */
MCHBAR32_OR(0x5500, 1 << 0); /* PAVP */
MCHBAR32_OR(0x5f00, 1 << 31); /* SA PM */
MCHBAR32_OR(0x6020, 1 << 0); /* UMA GFX */
MCHBAR32_OR(0x63fc, 1 << 0); /* VTDTRK */
MCHBAR32_OR(0x6800, 1 << 31);
MCHBAR32_OR(0x7000, 1 << 31);
MCHBAR32_OR(0x77fc, 1 << 0);
/* Memory Controller Lockdown */
MCHBAR8(0x50fc) = 0x8f;
/* Read+write the following */
MCHBAR32(0x6030) = MCHBAR32(0x6030);
MCHBAR32(0x6034) = MCHBAR32(0x6034);
MCHBAR32(0x6008) = MCHBAR32(0x6008);
}
/* Handler for XHCI controller on entry to S3/S4/S5 */
void usb_xhci_sleep_prepare(pci_devfn_t dev, u8 slp_typ)
{
u16 reg16;
u32 reg32;
u8 *mem_base = usb_xhci_mem_base(dev);
if (!mem_base || slp_typ < ACPI_S3)
return;
if (pch_is_lp()) {
/* Set D0 state */
reg16 = pci_read_config16(dev, XHCI_PWR_CTL_STS);
reg16 &= ~PWR_CTL_SET_MASK;
reg16 |= PWR_CTL_SET_D0;
pci_write_config16(dev, XHCI_PWR_CTL_STS, reg16);
/* Clear PCI 0xB0[14:13] */
reg32 = pci_read_config32(dev, 0xb0);
reg32 &= ~((1 << 14) | (1 << 13));
pci_write_config32(dev, 0xb0, reg32);
/* Clear MMIO 0x816c[14,2] */
reg32 = read32(mem_base + 0x816c);
reg32 &= ~((1 << 14) | (1 << 2));
write32(mem_base + 0x816c, reg32);
/* Reset disconnected USB3 ports */
usb_xhci_reset_usb3(dev, 0);
/* Set MMIO 0x80e0[15] */
reg32 = read32(mem_base + 0x80e0);
reg32 |= (1 << 15);
write32(mem_base + 0x80e0, reg32);
}
/* Set D3Hot state and enable PME */
pci_or_config16(dev, XHCI_PWR_CTL_STS, PWR_CTL_SET_D3);
pci_or_config16(dev, XHCI_PWR_CTL_STS, PWR_CTL_STATUS_PME);
pci_or_config16(dev, XHCI_PWR_CTL_STS, PWR_CTL_ENABLE_PME);
}
void intel_pch_finalize_smm(void)
{
if (CONFIG_LOCK_SPI_ON_RESUME_RO || CONFIG_LOCK_SPI_ON_RESUME_NO_ACCESS) {
/* Copy flash regions from FREG0-4 to PR0-4
and enable write protection bit31 */
int i;
u32 lockmask = (1 << 31);
if (CONFIG_LOCK_SPI_ON_RESUME_NO_ACCESS)
lockmask |= (1 << 15);
for (i = 0; i < 20; i += 4)
RCBA32(0x3874 + i) = RCBA32(0x3854 + i) | lockmask;
}
/* Set SPI opcode menu */
RCBA16(0x3894) = SPI_OPPREFIX;
RCBA16(0x3896) = SPI_OPTYPE;
RCBA32(0x3898) = SPI_OPMENU_LOWER;
RCBA32(0x389c) = SPI_OPMENU_UPPER;
/* Lock SPIBAR */
RCBA32_OR(0x3804, (1 << 15));
#if CONFIG_SPI_FLASH_SMM
/* Re-init SPI driver to handle locked BAR */
spi_init();
#endif
/* TCLOCKDN: TC Lockdown */
RCBA32_OR(0x0050, (1 << 31));
/* BIOS Interface Lockdown */
RCBA32_OR(0x3410, (1 << 0));
/* Function Disable SUS Well Lockdown */
RCBA_AND_OR(8, 0x3420, ~0U, (1 << 7));
/* Global SMI Lock */
pci_or_config16(PCH_LPC_DEV, 0xa0, 1 << 4);
/* GEN_PMCON Lock */
pci_or_config8(PCH_LPC_DEV, 0xa6, (1 << 1) | (1 << 2));
/* R/WO registers */
RCBA32(0x21a4) = RCBA32(0x21a4);
pci_write_config32(PCI_DEV(0, 27, 0), 0x74,
pci_read_config32(PCI_DEV(0, 27, 0), 0x74));
/* Indicate finalize step with post code */
outb(POST_OS_BOOT, 0x80);
}
void intel_pch_finalize_smm(void)
{
/* Set SPI opcode menu */
RCBA16(0x3894) = SPI_OPPREFIX;
RCBA16(0x3896) = SPI_OPTYPE;
RCBA32(0x3898) = SPI_OPMENU_LOWER;
RCBA32(0x389c) = SPI_OPMENU_UPPER;
/* Lock SPIBAR */
RCBA32_OR(0x3804, (1 << 15));
#if CONFIG_SPI_FLASH_SMM
/* Re-init SPI driver to handle locked BAR */
spi_init();
#endif
/* TCLOCKDN: TC Lockdown */
RCBA32_OR(0x0050, (1 << 31));
/* BIOS Interface Lockdown */
RCBA32_OR(0x3410, (1 << 0));
/* Function Disable SUS Well Lockdown */
RCBA_AND_OR(8, 0x3420, ~0U, (1 << 7));
/* Global SMI Lock */
pci_or_config16(PCH_LPC_DEV, 0xa0, 1 << 4);
/* GEN_PMCON Lock */
pci_or_config8(PCH_LPC_DEV, 0xa6, (1 << 1) | (1 << 2));
/* R/WO registers */
RCBA32(0x21a4) = RCBA32(0x21a4);
pci_write_config32(PCI_DEV(0, 27, 0), 0x74,
pci_read_config32(PCI_DEV(0, 27, 0), 0x74));
/* Indicate finalize step with post code */
outb(POST_OS_BOOT, 0x80);
}
