soc/intel/elkhartlake/bootblock: Do initial SoC commit until bootblock
Clone entirely from Jasperlake
This patch is based on TGL_upstream series patches:
https://review.coreboot.org/c/coreboot/+/36550
List of changes on top off initial jasperlake clone
1. Replace "Jasperlake" with "Elkhartlake"
2. Replace "jsl" with "ehl"
3. Rename structure based on Jasperlake with Elkhartlake
6. Add required headers into include/soc/ from JSL directory
Elkhart Lake specific changes will follow in subsequent patches.
1. soc/intel/elkhartlake: Update Kconfig
Signed-off-by: Tan, Lean Sheng <lean.sheng.tan@intel.com>
Change-Id: I9f91c1efa81a358b1f59e032e209e07b62d54613
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44799
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
diff --git a/src/soc/intel/elkhartlake/bootblock/bootblock.c b/src/soc/intel/elkhartlake/bootblock/bootblock.c
new file mode 100644
index 0000000..96e6268
--- /dev/null
+++ b/src/soc/intel/elkhartlake/bootblock/bootblock.c
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <intelblocks/systemagent.h>
+#include <intelblocks/tco.h>
+#include <intelblocks/uart.h>
+#include <soc/bootblock.h>
+
+asmlinkage void bootblock_c_entry(uint64_t base_timestamp)
+{
+ /* Call lib/bootblock.c main */
+ bootblock_main_with_basetime(base_timestamp);
+}
+
+void bootblock_soc_early_init(void)
+{
+ bootblock_systemagent_early_init();
+ bootblock_pch_early_init();
+ bootblock_cpu_init();
+ pch_early_iorange_init();
+ if (CONFIG(INTEL_LPSS_UART_FOR_CONSOLE))
+ uart_bootblock_init();
+}
+
+void bootblock_soc_init(void)
+{
+ report_platform_info();
+ bootblock_pch_init();
+
+ /* Programming TCO_BASE_ADDRESS and TCO Timer Halt */
+ tco_configure();
+}
diff --git a/src/soc/intel/elkhartlake/bootblock/cpu.c b/src/soc/intel/elkhartlake/bootblock/cpu.c
new file mode 100644
index 0000000..bbce44c
--- /dev/null
+++ b/src/soc/intel/elkhartlake/bootblock/cpu.c
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <intelblocks/fast_spi.h>
+#include <soc/bootblock.h>
+
+void bootblock_cpu_init(void)
+{
+ /*
+ * Elkhartlake platform doesn't support booting from any other media
+ * (like eMMC on APL/GLK platform) than only booting from SPI device
+ * and on IA platform SPI is memory mapped hence enabling temporarily
+ * caching on memory-mapped spi boot media.
+ */
+ fast_spi_cache_bios_region();
+}
diff --git a/src/soc/intel/elkhartlake/bootblock/pch.c b/src/soc/intel/elkhartlake/bootblock/pch.c
new file mode 100644
index 0000000..3988cab
--- /dev/null
+++ b/src/soc/intel/elkhartlake/bootblock/pch.c
@@ -0,0 +1,151 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <console/post_codes.h>
+#include <device/device.h>
+#include <device/mmio.h>
+#include <device/pci_ops.h>
+#include <intelblocks/fast_spi.h>
+#include <intelblocks/gspi.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/espi.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>
+
+#define PCR_PSF3_TO_SHDW_PMC_REG_BASE 0xA00
+
+#define PCR_PSFX_TO_SHDW_BAR0 0
+#define PCR_PSFX_TO_SHDW_BAR1 0x4
+#define PCR_PSFX_TO_SHDW_BAR2 0x8
+#define PCR_PSFX_TO_SHDW_BAR3 0xC
+#define PCR_PSFX_TO_SHDW_BAR4 0x10
+#define PCR_PSFX_TO_SHDW_PCIEN_IOEN 0x01
+#define PCR_PSFX_T0_SHDW_PCIEN 0x1C
+
+#define PCR_DMI_DMICTL 0x2234
+#define PCR_DMI_DMICTL_SRLOCK (1 << 31)
+
+#define PCR_DMI_ACPIBA 0x27B4
+#define PCR_DMI_ACPIBDID 0x27B8
+#define PCR_DMI_PMBASEA 0x27AC
+#define PCR_DMI_PMBASEC 0x27B0
+
+#define PCR_DMI_LPCIOD 0x2770
+#define PCR_DMI_LPCIOE 0x2774
+
+static void soc_config_pwrmbase(void)
+{
+ /*
+ * Assign Resources to PWRMBASE
+ * Clear BIT 1-2 Command Register
+ */
+ pci_and_config16(PCH_DEV_PMC, PCI_COMMAND, ~(PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
+
+ /* Program PWRM Base */
+ pci_write_config32(PCH_DEV_PMC, PWRMBASE, PCH_PWRM_BASE_ADDRESS);
+
+ /* Enable Bus Master and MMIO Space */
+ pci_or_config16(PCH_DEV_PMC, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER));
+
+ /* Enable PWRM in PMC */
+ setbits32((void *) PCH_PWRM_BASE_ADDRESS + ACTL, PWRM_EN);
+}
+
+void bootblock_pch_early_init(void)
+{
+ fast_spi_early_init(SPI_BASE_ADDRESS);
+ gspi_early_bar_init();
+ p2sb_enable_bar();
+ p2sb_configure_hpet();
+
+ /*
+ * Enabling PWRM Base for accessing
+ * Global Reset Cause Register.
+ */
+ soc_config_pwrmbase();
+}
+
+static void soc_config_acpibase(void)
+{
+ uint32_t pmc_reg_value;
+ const uint32_t pmc_base_reg = PCR_PSF3_TO_SHDW_PMC_REG_BASE;
+
+ pmc_reg_value = pcr_read32(PID_PSF3, pmc_base_reg + PCR_PSFX_TO_SHDW_BAR4);
+
+ if (pmc_reg_value != 0xffffffff) {
+ /* Disable IO Space before changing the address */
+ pcr_rmw32(PID_PSF3, pmc_base_reg + PCR_PSFX_T0_SHDW_PCIEN,
+ ~PCR_PSFX_TO_SHDW_PCIEN_IOEN, 0);
+ /* Program ABASE in PSF3 PMC space BAR4*/
+ pcr_write32(PID_PSF3, pmc_base_reg + PCR_PSFX_TO_SHDW_BAR4,
+ ACPI_BASE_ADDRESS);
+ /* Enable IO Space */
+ pcr_rmw32(PID_PSF3, pmc_base_reg + PCR_PSFX_T0_SHDW_PCIEN,
+ 0xffffffff, PCR_PSFX_TO_SHDW_PCIEN_IOEN);
+ }
+}
+
+static int pch_check_decode_enable(void)
+{
+ uint32_t dmi_control;
+
+ /*
+ * This cycle decoding is only allowed to set when
+ * DMICTL.SRLOCK is 0.
+ */
+ dmi_control = pcr_read32(PID_DMI, PCR_DMI_DMICTL);
+ if (dmi_control & PCR_DMI_DMICTL_SRLOCK)
+ return -1;
+ return 0;
+}
+
+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 | LPC_IOE_LGE_200;
+
+ /* IO Decode Range */
+ if (CONFIG(DRIVERS_UART_8250IO))
+ lpc_io_setup_comm_a_b();
+
+ /* IO Decode Enable */
+ if (pch_check_decode_enable() == 0) {
+ io_enables = lpc_enable_fixed_io_ranges(io_enables);
+ /*
+ * Set ESPI IO Enables PCR[DMI] + 2774h [15:0] to the same
+ * value programmed in ESPI PCI offset 82h.
+ */
+ pcr_write16(PID_DMI, PCR_DMI_LPCIOE, io_enables);
+ /*
+ * Set LPC IO Decode Ranges PCR[DMI] + 2770h [15:0] to the same
+ * value programmed in LPC PCI offset 80h.
+ */
+ pcr_write16(PID_DMI, PCR_DMI_LPCIOD, lpc_get_fixed_io_decode());
+ }
+
+ /* 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();
+
+ /* Set up GPE configuration */
+ pmc_gpe_init();
+
+ enable_rtc_upper_bank();
+}
diff --git a/src/soc/intel/elkhartlake/bootblock/report_platform.c b/src/soc/intel/elkhartlake/bootblock/report_platform.c
new file mode 100644
index 0000000..82b2ba1
--- /dev/null
+++ b/src/soc/intel/elkhartlake/bootblock/report_platform.c
@@ -0,0 +1,122 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <arch/cpu.h>
+#include <console/console.h>
+#include <cpu/intel/microcode.h>
+#include <cpu/x86/msr.h>
+#include <cpu/x86/name.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#include <intelblocks/mp_init.h>
+#include <soc/bootblock.h>
+#include <soc/pch.h>
+#include <soc/pci_devs.h>
+#include <string.h>
+
+/*
+ * TODO: Add EHL specific CPU/SA/PCH/IGD IDs here
+ */
+
+static inline uint8_t get_dev_revision(pci_devfn_t dev)
+{
+ return pci_read_config8(dev, PCI_REVISION_ID);
+}
+
+static inline uint16_t get_dev_id(pci_devfn_t dev)
+{
+ return pci_read_config16(dev, PCI_DEVICE_ID);
+}
+
+static void report_cpu_info(void)
+{
+ uint32_t i, cpu_id, cpu_feature_flag;
+ char cpu_name[49];
+ int vt, txt, aes;
+ static const char *const mode[] = {"NOT ", ""};
+ const char *cpu_type = "Unknown";
+
+ fill_processor_name(cpu_name);
+ cpu_id = cpu_get_cpuid();
+
+ /* Look for string to match the name */
+ for (i = 0; i < ARRAY_SIZE(cpu_table); i++) {
+ if (cpu_table[i].cpuid == cpu_id) {
+ cpu_type = cpu_table[i].name;
+ break;
+ }
+ }
+
+ printk(BIOS_DEBUG, "CPU: %s\n", cpu_name);
+ printk(BIOS_DEBUG, "CPU: ID %x, %s, ucode: %08x\n",
+ cpu_id, cpu_type, get_current_microcode_rev());
+
+ cpu_feature_flag = cpu_get_feature_flags_ecx();
+ aes = (cpu_feature_flag & CPUID_AES) ? 1 : 0;
+ txt = (cpu_feature_flag & CPUID_SMX) ? 1 : 0;
+ vt = (cpu_feature_flag & CPUID_VMX) ? 1 : 0;
+ printk(BIOS_DEBUG,
+ "CPU: AES %ssupported, TXT %ssupported, VT %ssupported\n",
+ mode[aes], mode[txt], mode[vt]);
+}
+
+static void report_mch_info(void)
+{
+ int i;
+ pci_devfn_t dev = SA_DEV_ROOT;
+ uint16_t mchid = get_dev_id(dev);
+ uint8_t mch_revision = get_dev_revision(dev);
+ const char *mch_type = "Unknown";
+
+ for (i = 0; i < ARRAY_SIZE(mch_table); i++) {
+ if (mch_table[i].mchid == mchid) {
+ mch_type = mch_table[i].name;
+ break;
+ }
+ }
+
+ printk(BIOS_DEBUG, "MCH: device id %04x (rev %02x) is %s\n",
+ mchid, mch_revision, mch_type);
+}
+
+static void report_pch_info(void)
+{
+ int i;
+ pci_devfn_t dev = PCH_DEV_ESPI;
+ uint16_t espiid = get_dev_id(dev);
+ const char *pch_type = "Unknown";
+
+ for (i = 0; i < ARRAY_SIZE(pch_table); i++) {
+ if (pch_table[i].espiid == espiid) {
+ pch_type = pch_table[i].name;
+ break;
+ }
+ }
+ printk(BIOS_DEBUG, "PCH: device id %04x (rev %02x) is %s\n",
+ espiid, get_dev_revision(dev), pch_type);
+}
+
+static void report_igd_info(void)
+{
+ int i;
+ pci_devfn_t dev = SA_DEV_IGD;
+ uint16_t igdid = get_dev_id(dev);
+ const char *igd_type = "Unknown";
+
+ for (i = 0; i < ARRAY_SIZE(igd_table); i++) {
+ if (igd_table[i].igdid == igdid) {
+ igd_type = igd_table[i].name;
+ break;
+ }
+ }
+ printk(BIOS_DEBUG, "IGD: device id %04x (rev %02x) is %s\n",
+ igdid, get_dev_revision(dev), igd_type);
+}
+
+void report_platform_info(void)
+{
+ report_cpu_info();
+ report_mch_info();
+ report_pch_info();
+ report_igd_info();
+}
diff --git a/src/soc/intel/elkhartlake/include/soc/bootblock.h b/src/soc/intel/elkhartlake/include/soc/bootblock.h
new file mode 100644
index 0000000..2dc50c1
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/bootblock.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_ELKHARTLAKE_BOOTBLOCK_H_
+#define _SOC_ELKHARTLAKE_BOOTBLOCK_H_
+
+/* Bootblock pre console init programming */
+void bootblock_cpu_init(void);
+void bootblock_pch_early_init(void);
+
+/* Bootblock post console init programming */
+void bootblock_pch_init(void);
+void pch_early_iorange_init(void);
+void report_platform_info(void);
+
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/espi.h b/src/soc/intel/elkhartlake/include/soc/espi.h
new file mode 100644
index 0000000..80b5c1e
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/espi.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_ELKHARTLAKE_ESPI_H_
+#define _SOC_ELKHARTLAKE_ESPI_H_
+
+
+/* PCI Configuration Space (D31:F0): ESPI */
+#define SCI_IRQ_SEL (7 << 0)
+#define SCIS_IRQ9 0
+#define SCIS_IRQ10 1
+#define SCIS_IRQ11 2
+#define SCIS_IRQ20 4
+#define SCIS_IRQ21 5
+#define SCIS_IRQ22 6
+#define SCIS_IRQ23 7
+#define SERIRQ_CNTL 0x64
+#define ESPI_IO_DEC 0x80 /* IO Decode Ranges Register */
+#define COMA_RANGE 0x0 /* 0x3F8 - 0x3FF COM1*/
+#define COMB_RANGE 0x1 /* 0x2F8 - 0x2FF COM2*/
+#define ESPI_GEN1_DEC 0x84 /* ESPI IF Generic Decode Range 1 */
+#define ESPI_GEN2_DEC 0x88 /* ESPI IF Generic Decode Range 2 */
+#define ESPI_GEN3_DEC 0x8c /* ESPI IF Generic Decode Range 3 */
+#define ESPI_GEN4_DEC 0x90 /* ESPI IF Generic Decode Range 4 */
+#define LGMR 0x98 /* ESPI Generic Memory Range */
+#define PCCTL 0xE0 /* PCI Clock Control */
+#define CLKRUN_EN (1 << 0)
+
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/iomap.h b/src/soc/intel/elkhartlake/include/soc/iomap.h
new file mode 100644
index 0000000..5ba40bc
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/iomap.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_ELKHARTLAKE_IOMAP_H_
+#define _SOC_ELKHARTLAKE_IOMAP_H_
+
+/*
+ * Memory-mapped I/O registers.
+ */
+#define MCFG_BASE_ADDRESS CONFIG_MMCONF_BASE_ADDRESS
+#define MCFG_BASE_SIZE 0x4000000
+
+#define PCH_PRESERVED_BASE_ADDRESS 0xfc800000
+#define PCH_PRESERVED_BASE_SIZE 0x02000000
+
+#define PCH_TRACE_HUB_BASE_ADDRESS 0xfc800000
+#define PCH_TRACE_HUB_BASE_SIZE 0x00800000
+
+#define DMI_BASE_ADDRESS 0xfeda0000
+#define DMI_BASE_SIZE 0x1000
+
+#define EP_BASE_ADDRESS 0xfeda1000
+#define EP_BASE_SIZE 0x1000
+
+#define EDRAM_BASE_ADDRESS 0xfed80000
+#define EDRAM_BASE_SIZE 0x4000
+
+#define GFXVT_BASE_ADDRESS 0xfed90000
+#define GFXVT_BASE_SIZE 0x1000
+
+#define VTVC0_BASE_ADDRESS 0xfed91000
+#define VTVC0_BASE_SIZE 0x1000
+
+#define REG_BASE_ADDRESS 0xfb000000
+#define REG_BASE_SIZE 0x1000
+
+#define HPET_BASE_ADDRESS 0xfed00000
+
+#define PCH_PWRM_BASE_ADDRESS 0xfe000000
+#define PCH_PWRM_BASE_SIZE 0x10000
+
+#define SPI_BASE_ADDRESS 0xfe010000
+
+#define GPIO_BASE_SIZE 0x10000
+
+#define HECI1_BASE_ADDRESS 0xfeda2000
+
+#define VTD_BASE_ADDRESS 0xfed90000
+#define VTD_BASE_SIZE 0x00004000
+
+#define MCH_BASE_ADDRESS 0xfea80000
+#define MCH_BASE_SIZE 0x8000
+
+#define EARLY_GSPI_BASE_ADDRESS 0xfe011000
+
+#define EARLY_I2C_BASE_ADDRESS 0xfe040000
+#define EARLY_I2C_BASE(x) (EARLY_I2C_BASE_ADDRESS + (0x1000 * (x)))
+
+/*
+ * I/O port address space
+ */
+#define SMBUS_BASE_ADDRESS 0x0efa0
+#define SMBUS_BASE_SIZE 0x20
+
+#define ACPI_BASE_ADDRESS 0x1800
+#define ACPI_BASE_SIZE 0x100
+
+#define TCO_BASE_ADDRESS 0x400
+#define TCO_BASE_SIZE 0x20
+
+#define P2SB_BAR CONFIG_PCR_BASE_ADDRESS
+#define P2SB_SIZE (16 * MiB)
+
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/p2sb.h b/src/soc/intel/elkhartlake/include/soc/p2sb.h
new file mode 100644
index 0000000..12ae313
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/p2sb.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_ELKHARTLAKE_P2SB_H_
+#define _SOC_ELKHARTLAKE_P2SB_H_
+
+#define HPTC_OFFSET 0x60
+#define HPTC_ADDR_ENABLE_BIT (1 << 7)
+
+#define PCH_P2SB_EPMASK0 0x220
+
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/pch.h b/src/soc/intel/elkhartlake/include/soc/pch.h
new file mode 100644
index 0000000..7a2d4ad
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/pch.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_ELKHARTLAKE_PCH_H_
+#define _SOC_ELKHARTLAKE_PCH_H_
+
+
+#define PCIE_CLK_NOTUSED 0xFF
+#define PCIE_CLK_LAN 0x70
+#define PCIE_CLK_FREE 0x80
+
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/pci_devs.h b/src/soc/intel/elkhartlake/include/soc/pci_devs.h
new file mode 100644
index 0000000..0ae7db8
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/pci_devs.h
@@ -0,0 +1,192 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_ELKHARTLAKE_PCI_DEVS_H_
+#define _SOC_ELKHARTLAKE_PCI_DEVS_H_
+
+#include <device/pci_def.h>
+
+#define _PCH_DEVFN(slot, func) PCI_DEVFN(PCH_DEV_SLOT_ ## slot, func)
+
+#if !defined(__SIMPLE_DEVICE__)
+#include <device/device.h>
+#define _PCH_DEV(slot, func) pcidev_path_on_root_debug(_PCH_DEVFN(slot, func), __func__)
+#else
+#define _PCH_DEV(slot, func) PCI_DEV(0, PCH_DEV_SLOT_ ## slot, func)
+#endif
+
+/* System Agent Devices */
+
+#define SA_DEV_SLOT_ROOT 0x00
+#define SA_DEVFN_ROOT PCI_DEVFN(SA_DEV_SLOT_ROOT, 0)
+#if defined(__SIMPLE_DEVICE__)
+#define SA_DEV_ROOT PCI_DEV(0, SA_DEV_SLOT_ROOT, 0)
+#endif
+
+#define SA_DEV_SLOT_IGD 0x02
+#define SA_DEVFN_IGD PCI_DEVFN(SA_DEV_SLOT_IGD, 0)
+#define SA_DEV_IGD PCI_DEV(0, SA_DEV_SLOT_IGD, 0)
+
+#define SA_DEV_SLOT_DPTF 0x04
+#define SA_DEVFN_DPTF PCI_DEVFN(SA_DEV_SLOT_DPTF, 0)
+#define SA_DEV_DPTF PCI_DEV(0, SA_DEV_SLOT_DPTF, 0)
+
+#define SA_DEV_SLOT_TBT 0x07
+#define SA_DEVFN_TBT0 PCI_DEVFN(SA_DEV_SLOT_TBT, 0)
+#define SA_DEVFN_TBT1 PCI_DEVFN(SA_DEV_SLOT_TBT, 1)
+#define SA_DEVFN_TBT2 PCI_DEVFN(SA_DEV_SLOT_TBT, 2)
+#define SA_DEVFN_TBT3 PCI_DEVFN(SA_DEV_SLOT_TBT, 3)
+#define SA_DEV_TBT0 PCI_DEV(0, SA_DEV_SLOT_TBT, 0)
+#define SA_DEV_TBT1 PCI_DEV(0, SA_DEV_SLOT_TBT, 1)
+#define SA_DEV_TBT2 PCI_DEV(0, SA_DEV_SLOT_TBT, 2)
+#define SA_DEV_TBT3 PCI_DEV(0, SA_DEV_SLOT_TBT, 3)
+
+#define SA_DEV_SLOT_IPU 0x05
+#define SA_DEVFN_IPU PCI_DEVFN(SA_DEV_SLOT_IPU, 0)
+#define SA_DEV_IPU PCI_DEV(0, SA_DEV_SLOT_IPU, 0)
+
+/* PCH Devices */
+#define PCH_DEV_SLOT_SIO0 0x10
+#define PCH_DEVFN_CNVI_BT _PCH_DEVFN(SIO0, 2)
+#define PCH_DEVFN_THC0 _PCH_DEVFN(SIO0, 6)
+#define PCH_DEVFN_THC1 _PCH_DEVFN(SIO0, 7)
+#define PCH_DEV_CNVI_BT _PCH_DEV(SIO0, 2)
+#define PCH_DEV_THC0 _PCH_DEV(SIO0, 6)
+#define PCH_DEV_THC1 _PCH_DEV(SIO0, 7)
+
+#define PCH_DEV_SLOT_SIO1 0x11
+#define PCH_DEVFN_UART3 _PCH_DEVFN(SIO1, 0)
+#define PCH_DEV_UART3 _PCH_DEV(SIO1, 0)
+
+#define PCH_DEV_SLOT_ISH 0x12
+#define PCH_DEVFN_ISH _PCH_DEVFN(ISH, 0)
+#define PCH_DEVFN_GSPI2 _PCH_DEVFN(ISH, 6)
+#define PCH_DEV_ISH _PCH_DEV(ISH, 0)
+#define PCH_DEV_GSPI2 _PCH_DEV(ISH, 6)
+
+#define PCH_DEV_SLOT_SIO2 0x13
+#define PCH_DEVFN_GSPI3 _PCH_DEVFN(SIO2, 0)
+#define PCH_DEV_GSPI3 _PCH_DEV(SIO2, 0)
+
+#define PCH_DEV_SLOT_XHCI 0x14
+#define PCH_DEVFN_XHCI _PCH_DEVFN(XHCI, 0)
+#define PCH_DEVFN_USBOTG _PCH_DEVFN(XHCI, 1)
+#define PCH_DEVFN_SRAM _PCH_DEVFN(XHCI, 2)
+#define PCH_DEVFN_CNVI_WIFI _PCH_DEVFN(XHCI, 3)
+#define PCH_DEV_XHCI _PCH_DEV(XHCI, 0)
+#define PCH_DEV_USBOTG _PCH_DEV(XHCI, 1)
+#define PCH_DEV_SRAM _PCH_DEV(XHCI, 2)
+#define PCH_DEV_CNVI_WIFI _PCH_DEV(XHCI, 3)
+#define PCH_DEVFN_SDCARD _PCH_DEVFN(XHCI, 5)
+#define PCH_DEV_SDCARD _PCH_DEV(XHCI, 5)
+
+#define PCH_DEV_SLOT_SIO3 0x15
+#define PCH_DEVFN_I2C0 _PCH_DEVFN(SIO3, 0)
+#define PCH_DEVFN_I2C1 _PCH_DEVFN(SIO3, 1)
+#define PCH_DEVFN_I2C2 _PCH_DEVFN(SIO3, 2)
+#define PCH_DEVFN_I2C3 _PCH_DEVFN(SIO3, 3)
+#define PCH_DEV_I2C0 _PCH_DEV(SIO3, 0)
+#define PCH_DEV_I2C1 _PCH_DEV(SIO3, 1)
+#define PCH_DEV_I2C2 _PCH_DEV(SIO3, 2)
+#define PCH_DEV_I2C3 _PCH_DEV(SIO3, 3)
+
+#define PCH_DEV_SLOT_CSE 0x16
+#define PCH_DEVFN_CSE _PCH_DEVFN(CSE, 0)
+#define PCH_DEVFN_CSE_2 _PCH_DEVFN(CSE, 1)
+#define PCH_DEVFN_CSE_IDER _PCH_DEVFN(CSE, 2)
+#define PCH_DEVFN_CSE_KT _PCH_DEVFN(CSE, 3)
+#define PCH_DEVFN_CSE_3 _PCH_DEVFN(CSE, 4)
+#define PCH_DEVFN_CSE_4 _PCH_DEVFN(CSE, 5)
+#define PCH_DEV_CSE _PCH_DEV(CSE, 0)
+#define PCH_DEV_CSE_2 _PCH_DEV(CSE, 1)
+#define PCH_DEV_CSE_IDER _PCH_DEV(CSE, 2)
+#define PCH_DEV_CSE_KT _PCH_DEV(CSE, 3)
+#define PCH_DEV_CSE_3 _PCH_DEV(CSE, 4)
+#define PCH_DEV_CSE_4 _PCH_DEV(CSE, 5)
+
+#define PCH_DEV_SLOT_SATA 0x17
+#define PCH_DEVFN_SATA _PCH_DEVFN(SATA, 0)
+#define PCH_DEV_SATA _PCH_DEV(SATA, 0)
+
+#define PCH_DEV_SLOT_SIO4 0x19
+#define PCH_DEVFN_I2C4 _PCH_DEVFN(SIO4, 0)
+#define PCH_DEVFN_I2C5 _PCH_DEVFN(SIO4, 1)
+#define PCH_DEVFN_UART2 _PCH_DEVFN(SIO4, 2)
+#define PCH_DEV_I2C4 _PCH_DEV(SIO4, 0)
+#define PCH_DEV_I2C5 _PCH_DEV(SIO4, 1)
+#define PCH_DEV_UART2 _PCH_DEV(SIO4, 2)
+
+#define PCH_DEV_SLOT_STORAGE 0x1a
+#define PCH_DEVFN_EMMC _PCH_DEVFN(STORAGE, 0)
+#define PCH_DEV_EMMC _PCH_DEV(STORAGE, 0)
+
+#define PCH_DEV_SLOT_PCIE 0x1c
+#define PCH_DEVFN_PCIE1 _PCH_DEVFN(PCIE, 0)
+#define PCH_DEVFN_PCIE2 _PCH_DEVFN(PCIE, 1)
+#define PCH_DEVFN_PCIE3 _PCH_DEVFN(PCIE, 2)
+#define PCH_DEVFN_PCIE4 _PCH_DEVFN(PCIE, 3)
+#define PCH_DEVFN_PCIE5 _PCH_DEVFN(PCIE, 4)
+#define PCH_DEVFN_PCIE6 _PCH_DEVFN(PCIE, 5)
+#define PCH_DEVFN_PCIE7 _PCH_DEVFN(PCIE, 6)
+#define PCH_DEVFN_PCIE8 _PCH_DEVFN(PCIE, 7)
+#define PCH_DEV_PCIE1 _PCH_DEV(PCIE, 0)
+#define PCH_DEV_PCIE2 _PCH_DEV(PCIE, 1)
+#define PCH_DEV_PCIE3 _PCH_DEV(PCIE, 2)
+#define PCH_DEV_PCIE4 _PCH_DEV(PCIE, 3)
+#define PCH_DEV_PCIE5 _PCH_DEV(PCIE, 4)
+#define PCH_DEV_PCIE6 _PCH_DEV(PCIE, 5)
+#define PCH_DEV_PCIE7 _PCH_DEV(PCIE, 6)
+#define PCH_DEV_PCIE8 _PCH_DEV(PCIE, 7)
+
+#define PCH_DEV_SLOT_PCIE_1 0x1d
+#define PCH_DEVFN_PCIE9 _PCH_DEVFN(PCIE_1, 0)
+#define PCH_DEVFN_PCIE10 _PCH_DEVFN(PCIE_1, 1)
+#define PCH_DEVFN_PCIE11 _PCH_DEVFN(PCIE_1, 2)
+#define PCH_DEVFN_PCIE12 _PCH_DEVFN(PCIE_1, 3)
+#define PCH_DEV_PCIE9 _PCH_DEV(PCIE_1, 0)
+#define PCH_DEV_PCIE10 _PCH_DEV(PCIE_1, 1)
+#define PCH_DEV_PCIE11 _PCH_DEV(PCIE_1, 2)
+#define PCH_DEV_PCIE12 _PCH_DEV(PCIE_1, 3)
+
+#define PCH_DEV_SLOT_SIO5 0x1e
+#define PCH_DEVFN_UART0 _PCH_DEVFN(SIO5, 0)
+#define PCH_DEVFN_UART1 _PCH_DEVFN(SIO5, 1)
+#define PCH_DEVFN_GSPI0 _PCH_DEVFN(SIO5, 2)
+#define PCH_DEVFN_GSPI1 _PCH_DEVFN(SIO5, 3)
+#define PCH_DEV_UART0 _PCH_DEV(SIO5, 0)
+#define PCH_DEV_UART1 _PCH_DEV(SIO5, 1)
+#define PCH_DEV_GSPI0 _PCH_DEV(SIO5, 2)
+#define PCH_DEV_GSPI1 _PCH_DEV(SIO5, 3)
+
+#define PCH_DEV_SLOT_ESPI 0x1f
+#define PCH_DEV_SLOT_LPC PCH_DEV_SLOT_ESPI
+#define PCH_DEVFN_ESPI _PCH_DEVFN(ESPI, 0)
+#define PCH_DEVFN_P2SB _PCH_DEVFN(ESPI, 1)
+#define PCH_DEVFN_PMC _PCH_DEVFN(ESPI, 2)
+#define PCH_DEVFN_HDA _PCH_DEVFN(ESPI, 3)
+#define PCH_DEVFN_SMBUS _PCH_DEVFN(ESPI, 4)
+#define PCH_DEVFN_SPI _PCH_DEVFN(ESPI, 5)
+#define PCH_DEVFN_GBE _PCH_DEVFN(ESPI, 6)
+#define PCH_DEVFN_TRACEHUB _PCH_DEVFN(ESPI, 7)
+#define PCH_DEV_ESPI _PCH_DEV(ESPI, 0)
+#define PCH_DEV_LPC PCH_DEV_ESPI
+#define PCH_DEV_P2SB _PCH_DEV(ESPI, 1)
+
+#if !ENV_RAMSTAGE
+/*
+ * PCH_DEV_PMC is intentionally not defined in RAMSTAGE since PMC device gets
+ * hidden from PCI bus after call to FSP-S. This leads to resource allocator
+ * dropping it from the root bus as unused device. All references to PCH_DEV_PMC
+ * would then return NULL and can go unnoticed if not handled properly. Since,
+ * this device does not have any special chip config associated with it, it is
+ * okay to not provide the definition for it in ramstage.
+ */
+#define PCH_DEV_PMC _PCH_DEV(ESPI, 2)
+#endif
+
+#define PCH_DEV_HDA _PCH_DEV(ESPI, 3)
+#define PCH_DEV_SMBUS _PCH_DEV(ESPI, 4)
+#define PCH_DEV_SPI _PCH_DEV(ESPI, 5)
+#define PCH_DEV_GBE _PCH_DEV(ESPI, 6)
+#define PCH_DEV_TRACEHUB _PCH_DEV(ESPI, 7)
+
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/pcr_ids.h b/src/soc/intel/elkhartlake/include/soc/pcr_ids.h
new file mode 100644
index 0000000..c5c5b31
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/pcr_ids.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_ELKHARTLAKE_PCR_H
+#define SOC_ELKHARTLAKE_PCR_H
+/*
+ * Port IDs
+ */
+#define PID_EMMC 0x51
+#define PID_SDX 0x53
+
+#define PID_GPIOCOM0 0x6e
+#define PID_GPIOCOM1 0x6d
+#define PID_GPIOCOM2 0x6c
+#define PID_GPIOCOM4 0x6a
+#define PID_GPIOCOM5 0x69
+
+#define PID_DMI 0x88
+#define PID_PSTH 0x89
+#define PID_CSME0 0x90
+#define PID_ISCLK 0xad
+#define PID_PSF1 0xba
+#define PID_PSF2 0xbb
+#define PID_PSF3 0xbc
+#define PID_PSF4 0xbd
+#define PID_SCS 0xc0
+#define PID_RTC 0xc3
+#define PID_ITSS 0xc4
+#define PID_ESPI 0xc7
+#define PID_SERIALIO 0xcb
+
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/pm.h b/src/soc/intel/elkhartlake/include/soc/pm.h
new file mode 100644
index 0000000..11d6663
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/pm.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_PM_H_
+#define _SOC_PM_H_
+
+#define PM1_STS 0x00
+#define WAK_STS (1 << 15)
+#define PCIEXPWAK_STS (1 << 14)
+#define PRBTNOR_STS (1 << 11)
+#define RTC_STS (1 << 10)
+#define PWRBTN_STS (1 << 8)
+#define GBL_STS (1 << 5)
+#define BM_STS (1 << 4)
+#define TMROF_STS (1 << 0)
+#define PM1_EN 0x02
+#define PCIEXPWAK_DIS (1 << 14)
+#define RTC_EN (1 << 10)
+#define PWRBTN_EN (1 << 8)
+#define GBL_EN (1 << 5)
+#define TMROF_EN (1 << 0)
+#define PM1_CNT 0x04
+#define GBL_RLS (1 << 2)
+#define BM_RLD (1 << 1)
+#define SCI_EN (1 << 0)
+#define PM1_TMR 0x08
+#define SMI_EN 0x30
+#define XHCI_SMI_EN (1 << 31)
+#define ME_SMI_EN (1 << 30)
+#define ESPI_SMI_EN (1 << 28)
+#define GPIO_UNLOCK_SMI_EN (1 << 27)
+#define INTEL_USB2_EN (1 << 18)
+#define LEGACY_USB2_EN (1 << 17)
+#define PERIODIC_EN (1 << 14)
+#define TCO_SMI_EN (1 << 13)
+#define MCSMI_EN (1 << 11)
+#define BIOS_RLS (1 << 7)
+#define SWSMI_TMR_EN (1 << 6)
+#define APMC_EN (1 << 5)
+#define SLP_SMI_EN (1 << 4)
+#define LEGACY_USB_EN (1 << 3)
+#define BIOS_EN (1 << 2)
+#define EOS (1 << 1)
+#define GBL_SMI_EN (1 << 0)
+#define SMI_STS 0x34
+#define SMI_STS_BITS 32
+#define XHCI_SMI_STS_BIT 31
+#define ME_SMI_STS_BIT 30
+#define ESPI_SMI_STS_BIT 28
+#define GPIO_UNLOCK_SMI_STS_BIT 27
+#define SPI_SMI_STS_BIT 26
+#define SCC_SMI_STS_BIT 25
+#define MONITOR_STS_BIT 21
+#define PCI_EXP_SMI_STS_BIT 20
+#define SMBUS_SMI_STS_BIT 16
+#define SERIRQ_SMI_STS_BIT 15
+#define PERIODIC_STS_BIT 14
+#define TCO_STS_BIT 13
+#define DEVMON_STS_BIT 12
+#define MCSMI_STS_BIT 11
+#define GPIO_STS_BIT 10
+#define GPE0_STS_BIT 9
+#define PM1_STS_BIT 8
+#define SWSMI_TMR_STS_BIT 6
+#define APM_STS_BIT 5
+#define SMI_ON_SLP_EN_STS_BIT 4
+#define LEGACY_USB_STS_BIT 3
+#define BIOS_STS_BIT 2
+#define GPE_CNTL 0x42
+#define SWGPE_CTRL (1 << 1)
+#define DEVACT_STS 0x44
+#define PM2_CNT 0x50
+
+#define GPE0_REG_MAX 4
+#define GPE0_REG_SIZE 32
+#define GPE0_STS(x) (0x60 + ((x) * 4))
+#define GPE_31_0 0 /* 0x60/0x70 = GPE[31:0] */
+#define GPE_63_32 1 /* 0x64/0x74 = GPE[63:32] */
+#define GPE_95_64 2 /* 0x68/0x78 = GPE[95:64] */
+#define GPE_STD 3 /* 0x6c/0x7c = Standard GPE */
+#define GPE_STS_RSVD GPE_STD
+#define WADT_STS (1 << 18)
+#define GPIO_T2_STS (1 << 15)
+#define ESPI_STS (1 << 14)
+#define PME_B0_STS (1 << 13)
+#define ME_SCI_STS (1 << 12)
+#define PME_STS (1 << 11)
+#define BATLOW_STS (1 << 10)
+#define PCI_EXP_STS (1 << 9)
+#define SMB_WAK_STS (1 << 7)
+#define TCOSCI_STS (1 << 6)
+#define SWGPE_STS (1 << 2)
+#define HOT_PLUG_STS (1 << 1)
+#define GPE0_EN(x) (0x70 + ((x) * 4))
+#define WADT_EN (1 << 18)
+#define GPIO_T2_EN (1 << 15)
+#define ESPI_EN (1 << 14)
+#define PME_B0_EN_BIT 13
+#define PME_B0_EN (1 << PME_B0_EN_BIT)
+#define ME_SCI_EN (1 << 12)
+#define PME_EN (1 << 11)
+#define BATLOW_EN (1 << 10)
+#define PCI_EXP_EN (1 << 9)
+#define TCOSCI_EN (1 << 6)
+#define SWGPE_EN (1 << 2)
+#define HOT_PLUG_EN (1 << 1)
+
+#define EN_BLOCK 3
+
+/*
+ * Enable SMI generation:
+ * - on APMC writes (io 0xb2)
+ * - on writes to SLP_EN (sleep states)
+ * - on writes to GBL_RLS (bios commands)
+ * - on eSPI events (does nothing on LPC systems)
+ * No SMIs:
+ * - on TCO events, unless enabled in common code
+ * - on microcontroller writes (io 0x62/0x66)
+ */
+#define ENABLE_SMI_PARAMS \
+ (APMC_EN | SLP_SMI_EN | GBL_SMI_EN | ESPI_SMI_EN | EOS)
+
+#define PSS_RATIO_STEP 2
+#define PSS_MAX_ENTRIES 8
+#define PSS_LATENCY_TRANSITION 10
+#define PSS_LATENCY_BUSMASTER 10
+
+#if !defined(__ACPI__)
+
+#include <acpi/acpi.h>
+#include <soc/gpe.h>
+#include <soc/iomap.h>
+#include <soc/smbus.h>
+#include <soc/pmc.h>
+
+struct chipset_power_state {
+ uint16_t pm1_sts;
+ uint16_t pm1_en;
+ uint32_t pm1_cnt;
+ uint16_t tco1_sts;
+ uint16_t tco2_sts;
+ uint32_t gpe0_sts[4];
+ uint32_t gpe0_en[4];
+ uint32_t gen_pmcon_a;
+ uint32_t gen_pmcon_b;
+ uint32_t gblrst_cause[2];
+ uint32_t prev_sleep_state;
+} __packed;
+
+/* Get base address PMC memory mapped registers. */
+uint8_t *pmc_mmio_regs(void);
+
+/* Get base address of TCO I/O registers. */
+uint16_t smbus_tco_regs(void);
+
+/* Set the DISB after DRAM init */
+void pmc_set_disb(void);
+
+/* Clear PMCON status bits */
+void pmc_clear_pmcon_sts(void);
+
+/* STM Support */
+uint16_t get_pmbase(void);
+#endif /* !defined(__ACPI__) */
+#endif
diff --git a/src/soc/intel/elkhartlake/include/soc/smbus.h b/src/soc/intel/elkhartlake/include/soc/smbus.h
new file mode 100644
index 0000000..0ea469c
--- /dev/null
+++ b/src/soc/intel/elkhartlake/include/soc/smbus.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _SOC_ELKHARTLAKE_SMBUS_H_
+#define _SOC_ELKHARTLAKE_SMBUS_H_
+
+/* IO and MMIO registers under primary BAR */
+
+/* TCO registers and fields live behind TCOBASE I/O bar in SMBus device. */
+#define TCO1_STS 0x04
+#define TCO_TIMEOUT (1 << 3)
+#define TCO2_STS 0x06
+#define TCO_STS_SECOND_TO (1 << 1)
+#define TCO_INTRD_DET (1 << 0)
+#define TCO1_CNT 0x08
+#define TCO_LOCK (1 << 12)
+#define TCO_TMR_HLT (1 << 11)
+#define TCO2_CNT 0x0A
+#define TCO_INTRD_SEL_MASK (3 << 1)
+#define TCO_INTRD_SEL_SMI (1 << 2)
+#define TCO_INTRD_SEL_INT (1 << 1)
+
+/*
+ * Default slave address value for PCH. This value is set to match default
+ * value set by hardware. It is useful since PCH is able to respond even
+ * before CPU is up. This is reset by RSMRST# but not by PLTRST#.
+ */
+#define SMBUS_SLAVE_ADDR 0x44
+
+#endif