| /* SPDX-License-Identifier: GPL-2.0-only */ |
| #include <device/pci_ops.h> |
| #include <device/device.h> |
| #include <device/pci_def.h> |
| #include <intelblocks/fast_spi.h> |
| #include <intelblocks/gspi.h> |
| #include <intelblocks/itss.h> |
| #include <intelblocks/lpc_lib.h> |
| #include <intelblocks/p2sb.h> |
| #include <intelblocks/pcr.h> |
| #include <intelblocks/pmclib.h> |
| #include <intelblocks/rtc.h> |
| #include <soc/bootblock.h> |
| #include <soc/iomap.h> |
| #include <soc/p2sb.h> |
| #include <soc/pch.h> |
| #include <soc/pci_devs.h> |
| #include <soc/pcr_ids.h> |
| #include <soc/pm.h> |
| #include <soc/pmc.h> |
| #include "../chip.h" |
| |
| #define PCR_DMI_ACPIBA 0x27B4 |
| #define PCR_DMI_ACPIBDID 0x27B8 |
| #define PCR_DMI_PMBASEA 0x27AC |
| #define PCR_DMI_PMBASEC 0x27B0 |
| |
| void bootblock_pch_early_init(void) |
| { |
| /* |
| * Perform P2SB configuration before any another controller initialization as the |
| * controller might want to perform PCR settings. |
| */ |
| p2sb_enable_bar(); |
| p2sb_configure_hpet(); |
| |
| fast_spi_early_init(SPI_BASE_ADDRESS); |
| } |
| |
| static void soc_config_acpibase(void) |
| { |
| uint32_t reg32; |
| |
| /* Disable ABASE in PMC Device first before changing Base Address */ |
| reg32 = pci_read_config32(PCH_DEV_PMC, ACTL); |
| pci_write_config32(PCH_DEV_PMC, ACTL, reg32 & ~ACPI_EN); |
| |
| /* Program ACPI Base */ |
| pci_write_config32(PCH_DEV_PMC, ABASE, ACPI_BASE_ADDRESS); |
| |
| /* Enable ACPI in PMC */ |
| pci_write_config32(PCH_DEV_PMC, ACTL, reg32 | ACPI_EN); |
| |
| /* |
| * Program "ACPI Base Address" PCR[DMI] + 27B4h[23:18, 15:2, 0] |
| * to [0x3F, PMC PCI Offset 40h bit[15:2], 1] |
| */ |
| reg32 = ((0x3f << 18) | ACPI_BASE_ADDRESS | 1); |
| pcr_write32(PID_DMI, PCR_DMI_ACPIBA, reg32); |
| if (CONFIG(SKYLAKE_SOC_PCH_H)) |
| pcr_write32(PID_DMI, PCR_DMI_ACPIBDID, 0x23a8); |
| else |
| pcr_write32(PID_DMI, PCR_DMI_ACPIBDID, 0x23a0); |
| } |
| |
| static void soc_config_pwrmbase(void) |
| { |
| uint32_t reg32; |
| |
| /* Disable PWRMBASE in PMC Device first before changing Base address */ |
| reg32 = pci_read_config32(PCH_DEV_PMC, ACTL); |
| pci_write_config32(PCH_DEV_PMC, ACTL, reg32 & ~PWRM_EN); |
| |
| /* Program PWRM Base */ |
| pci_write_config32(PCH_DEV_PMC, PWRMBASE, PCH_PWRM_BASE_ADDRESS); |
| |
| /* Enable PWRM in PMC */ |
| pci_write_config32(PCH_DEV_PMC, ACTL, reg32 | PWRM_EN); |
| |
| /* |
| * Program "PM Base Address Memory Range Base" PCR[DMI] + 27ACh[15:0] |
| * to the same value programmed in PMC PCI Offset 48h bit[31:16], |
| * this has an implication of making sure the PWRMBASE to be |
| * 64KB aligned. |
| * |
| * Program "PM Base Address Memory Range Limit" PCR[DMI] + 27ACh[31:16] |
| * to the value programmed in PMC PCI Offset 48h bit[31:16], this has an |
| * implication of making sure the memory allocated to PWRMBASE to be |
| * 64KB in size. |
| */ |
| pcr_write32(PID_DMI, PCR_DMI_PMBASEA, |
| ((PCH_PWRM_BASE_ADDRESS & 0xFFFF0000) | |
| (PCH_PWRM_BASE_ADDRESS >> 16))); |
| if (CONFIG(SKYLAKE_SOC_PCH_H)) |
| pcr_write32(PID_DMI, PCR_DMI_PMBASEC, 0x800023a8); |
| else |
| pcr_write32(PID_DMI, PCR_DMI_PMBASEC, 0x800023a0); |
| } |
| |
| void pch_early_iorange_init(void) |
| { |
| uint16_t io_enables = LPC_IOE_SUPERIO_2E_2F | LPC_IOE_KBC_60_64 | |
| LPC_IOE_EC_62_66; |
| |
| const config_t *config = config_of_soc(); |
| |
| if (config->lpc_ioe) { |
| io_enables = config->lpc_ioe & 0x3f0f; |
| lpc_set_fixed_io_ranges(config->lpc_iod, 0x1377); |
| } else { |
| /* IO Decode Range */ |
| if (CONFIG(DRIVERS_UART_8250IO)) |
| lpc_io_setup_comm_a_b(); |
| } |
| |
| /* IO Decode Enable */ |
| lpc_enable_fixed_io_ranges(io_enables); |
| |
| /* Program generic IO Decode Range */ |
| pch_enable_lpc(); |
| } |
| |
| void bootblock_pch_init(void) |
| { |
| /* |
| * Enabling ABASE for accessing PM1_STS, PM1_EN, PM1_CNT, |
| * GPE0_STS, GPE0_EN registers. |
| */ |
| soc_config_acpibase(); |
| |
| /* |
| * Enabling PWRM Base for accessing |
| * Global Reset Cause Register. |
| */ |
| soc_config_pwrmbase(); |
| |
| /* Set up GPE configuration */ |
| pmc_gpe_init(); |
| |
| enable_rtc_upper_bank(); |
| |
| gspi_early_bar_init(); |
| } |