mainboard/siemens/fa_ehl: Add new mainboard based on mc_ehl2
Add a new mainboard called fa_ehl which is based on Siemens's
'mc_ehl2'. This commit simply copies the mainboard directory and
adjusts the naming to match the new board's name. Moreover a variants
scheme is provided for possible alternative implementations. Follow-up
commits will introduce the needed changes for the new mainboard.
Change-Id: Ia389c8812d14db8b663547e6336e900becbc8be6
Signed-off-by: Johannes Hahn <johannes-hahn@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76444
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Jan Samek <jan.samek@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Uwe Poeche <uwe.poeche@siemens.com>
diff --git a/src/mainboard/siemens/fa_ehl/Kconfig b/src/mainboard/siemens/fa_ehl/Kconfig
new file mode 100644
index 0000000..f70739b
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/Kconfig
@@ -0,0 +1,31 @@
+config BOARD_SIEMENS_BASEBOARD_FA_EHL
+ def_bool n
+ select SOC_INTEL_ELKHARTLAKE
+ select BOARD_ROMSIZE_KB_16384
+ select DRIVERS_I2C_GENERIC
+ select HAVE_ACPI_TABLES
+ select DRIVER_SIEMENS_NC_FPGA
+ select NC_FPGA_NOTIFY_CB_READY
+ select USE_SIEMENS_HWILIB
+ select SOC_INTEL_DISABLE_POWER_LIMITS
+
+source "src/mainboard/siemens/fa_ehl/variants/*/Kconfig"
+
+if BOARD_SIEMENS_BASEBOARD_FA_EHL
+
+config MAINBOARD_DIR
+ default "siemens/fa_ehl"
+
+config VARIANT_DIR
+ default "fa_ehl" if BOARD_SIEMENS_FA_EHL
+
+config MAINBOARD_PART_NUMBER
+ default "FA EHL" if BOARD_SIEMENS_FA_EHL
+
+config DEVICETREE
+ default "variants/\$(CONFIG_VARIANT_DIR)/devicetree.cb"
+
+config SOC_INTEL_ELKHARTLAKE_TCO_NO_REBOOT_EN
+ default y
+
+endif # BOARD_SIEMENS_BASEBOARD_FA_EHL
diff --git a/src/mainboard/siemens/fa_ehl/Kconfig.name b/src/mainboard/siemens/fa_ehl/Kconfig.name
new file mode 100644
index 0000000..0f9d062
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/Kconfig.name
@@ -0,0 +1,5 @@
+comment "FA EHL"
+
+config BOARD_SIEMENS_FA_EHL
+ bool "-> FA EHL"
+ select BOARD_SIEMENS_BASEBOARD_FA_EHL
diff --git a/src/mainboard/siemens/fa_ehl/Makefile.inc b/src/mainboard/siemens/fa_ehl/Makefile.inc
new file mode 100644
index 0000000..e34eddb
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/Makefile.inc
@@ -0,0 +1,14 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+subdirs-y += spd
+
+bootblock-y += bootblock.c
+
+romstage-y += romstage_fsp_params.c
+
+ramstage-y += mainboard.c
+
+subdirs-y += variants/baseboard
+CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/baseboard/include
+
+subdirs-y += variants/$(VARIANT_DIR)
diff --git a/src/mainboard/siemens/fa_ehl/board_info.txt b/src/mainboard/siemens/fa_ehl/board_info.txt
new file mode 100644
index 0000000..505299d
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/board_info.txt
@@ -0,0 +1,5 @@
+Vendor name: Siemens
+Board name: FA EHL
+Category: misc
+ROM protocol: SPI
+ROM socketed: n
diff --git a/src/mainboard/siemens/fa_ehl/bootblock.c b/src/mainboard/siemens/fa_ehl/bootblock.c
new file mode 100644
index 0000000..c39a8ff
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/bootblock.c
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <bootblock_common.h>
+#include <soc/gpio.h>
+
+void bootblock_mainboard_init(void)
+{
+ const struct pad_config *pads;
+ size_t num;
+
+ pads = variant_early_gpio_table(&num);
+ gpio_configure_pads(pads, num);
+}
diff --git a/src/mainboard/siemens/fa_ehl/dsdt.asl b/src/mainboard/siemens/fa_ehl/dsdt.asl
new file mode 100644
index 0000000..b60f57b
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/dsdt.asl
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <acpi/acpi.h>
+
+DefinitionBlock(
+ "dsdt.aml",
+ "DSDT",
+ ACPI_DSDT_REV_2,
+ OEM_ID,
+ ACPI_TABLE_CREATOR,
+ 0x20110725
+)
+{
+ #include <acpi/dsdt_top.asl>
+ #include <soc/intel/common/block/acpi/acpi/platform.asl>
+ #include <soc/intel/common/block/acpi/acpi/globalnvs.asl>
+ #include <cpu/intel/common/acpi/cpu.asl>
+
+ Scope (\_SB) {
+ Device (PCI0)
+ {
+ #include <soc/intel/common/block/acpi/acpi/northbridge.asl>
+ #include <soc/intel/elkhartlake/acpi/southbridge.asl>
+ }
+ }
+
+ #include <southbridge/intel/common/acpi/sleepstates.asl>
+}
diff --git a/src/mainboard/siemens/fa_ehl/fa_ehl.fmd b/src/mainboard/siemens/fa_ehl/fa_ehl.fmd
new file mode 100644
index 0000000..78faf2b
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/fa_ehl.fmd
@@ -0,0 +1,11 @@
+FLASH @0xff000000 CONFIG_ROM_SIZE {
+ SI_ALL 0x400000 {
+ SI_DESC 0x1000
+ SI_ME 0x3ff000
+ }
+ SI_BIOS 0xc00000 {
+ FMAP 0x200
+ RW_MRC_CACHE 0x10000
+ COREBOOT(CBFS)
+ }
+}
diff --git a/src/mainboard/siemens/fa_ehl/mainboard.c b/src/mainboard/siemens/fa_ehl/mainboard.c
new file mode 100644
index 0000000..7aa0d86
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/mainboard.c
@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <bootstate.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci_def.h>
+#include <device/pci_ops.h>
+#include <device/pci_ids.h>
+#include <hwilib.h>
+#include <i210.h>
+#include <soc/gpio.h>
+#include <soc/ramstage.h>
+#include <string.h>
+#include <timer.h>
+#include <timestamp.h>
+
+#define MAX_PATH_DEPTH 12
+#define MAX_NUM_MAPPINGS 10
+
+/** \brief This function can decide if a given MAC address is valid or not.
+ * Currently, addresses filled with 0xff or 0x00 are not valid.
+ * @param mac Buffer to the MAC address to check
+ * @return 0 if address is not valid, otherwise 1
+ */
+static uint8_t is_mac_adr_valid(uint8_t mac[MAC_ADDR_LEN])
+{
+ for (size_t i = 0; i < MAC_ADDR_LEN; i++) {
+ if (mac[i] != 0x00 && mac[i] != 0xff)
+ return 1;
+ if (mac[i] != mac[0])
+ return 1;
+ }
+ return 0;
+}
+
+/** \brief This function will search for a MAC address which can be assigned
+ * to a MACPHY.
+ * @param dev pointer to PCI device
+ * @param mac buffer where to store the MAC address
+ * @return cb_err CB_ERR or CB_SUCCESS
+ */
+enum cb_err mainboard_get_mac_address(struct device *dev, uint8_t mac[MAC_ADDR_LEN])
+{
+ struct bus *parent = dev->bus;
+ uint8_t buf[16], mapping[16], i = 0, chain_len = 0;
+
+ memset(buf, 0, sizeof(buf));
+ memset(mapping, 0, sizeof(mapping));
+
+ /* The first entry in the tree is the device itself. */
+ buf[0] = dev->path.pci.devfn;
+ chain_len = 1;
+ for (i = 1; i < MAX_PATH_DEPTH && parent->dev->bus->subordinate; i++) {
+ buf[i] = parent->dev->path.pci.devfn;
+ chain_len++;
+ parent = parent->dev->bus;
+ }
+ if (i == MAX_PATH_DEPTH) {
+ /* The path is deeper than MAX_PATH_DEPTH devices, error. */
+ printk(BIOS_ERR, "Too many bridges for %s\n", dev_path(dev));
+ return CB_ERR;
+ }
+ /*
+ * Now construct the mapping based on the device chain starting from
+ * root bridge device to the device itself.
+ */
+ mapping[0] = 1;
+ mapping[1] = chain_len;
+ for (i = 0; i < chain_len; i++)
+ mapping[i + 4] = buf[chain_len - i - 1];
+
+ /* Open main hwinfo block */
+ if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS)
+ return CB_ERR;
+ /* Now try to find a valid MAC address in hwinfo for this mapping. */
+ for (i = 0; i < MAX_NUM_MAPPINGS; i++) {
+ if (hwilib_get_field(XMac1Mapping + i, buf, 16) != 16)
+ continue;
+ if (memcmp(buf, mapping, chain_len + 4))
+ continue;
+ /* There is a matching mapping available, get MAC address. */
+ if (hwilib_get_field(XMac1 + i, mac, MAC_ADDR_LEN) == MAC_ADDR_LEN) {
+ if (is_mac_adr_valid(mac))
+ return CB_SUCCESS;
+ }
+ return CB_ERR;
+ }
+ /* No MAC address found for */
+ return CB_ERR;
+}
+
+static void wait_for_legacy_dev(void *unused)
+{
+ uint32_t legacy_delay, us_since_boot;
+ struct stopwatch sw;
+
+ /* Open main hwinfo block. */
+ if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS)
+ return;
+
+ /* Get legacy delay parameter from hwinfo. */
+ if (hwilib_get_field(LegacyDelay, (uint8_t *)&legacy_delay,
+ sizeof(legacy_delay)) != sizeof(legacy_delay))
+ return;
+
+ us_since_boot = get_us_since_boot();
+ /* No need to wait if the time since boot is already long enough.*/
+ if (us_since_boot > legacy_delay)
+ return;
+ stopwatch_init_msecs_expire(&sw, (legacy_delay - us_since_boot) / 1000);
+ printk(BIOS_NOTICE, "Wait remaining %d of %d us for legacy devices...",
+ legacy_delay - us_since_boot, legacy_delay);
+ stopwatch_wait_until_expired(&sw);
+ printk(BIOS_NOTICE, "done!\n");
+}
+
+void mainboard_silicon_init_params(FSP_S_CONFIG *params)
+{
+ /* Disable CPU power states (C-states) */
+ params->Cx = 0;
+
+ /* Set maximum package C-state to PkgC0C1 */
+ params->PkgCStateLimit = 0;
+
+ /* Disable P-States */
+ params->MaxRatio = 0;
+
+ /* Disable PMC low power modes */
+ params->PmcLpmS0ixSubStateEnableMask = 0;
+ params->PmcV1p05PhyExtFetControlEn = 0;
+ params->PmcV1p05IsExtFetControlEn = 0;
+}
+
+static void mainboard_init(void *chip_info)
+{
+ const struct pad_config *pads;
+ size_t num;
+
+ pads = variant_gpio_table(&num);
+ gpio_configure_pads(pads, num);
+}
+
+static void mainboard_final(void *chip_info)
+{
+ struct device *dev;
+
+ /* Do board specific things */
+ variant_mainboard_final();
+
+ if (CONFIG(PCI_ALLOW_BUS_MASTER_ANY_DEVICE)) {
+ /* Set Master Enable for on-board PCI devices if allowed. */
+ dev = dev_find_device(PCI_VID_SIEMENS, 0x403e, 0);
+ if (dev)
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
+
+ dev = dev_find_device(PCI_VID_SIEMENS, 0x403f, 0);
+ if (dev)
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
+ }
+}
+
+/* The following function performs board specific things. */
+void __weak variant_mainboard_final(void)
+{
+}
+
+struct chip_operations mainboard_ops = {
+ .init = mainboard_init,
+ .final = mainboard_final
+};
+
+BOOT_STATE_INIT_ENTRY(BS_DEV_ENUMERATE, BS_ON_ENTRY, wait_for_legacy_dev, NULL);
diff --git a/src/mainboard/siemens/fa_ehl/romstage_fsp_params.c b/src/mainboard/siemens/fa_ehl/romstage_fsp_params.c
new file mode 100644
index 0000000..506bcc6
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/romstage_fsp_params.c
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <console/console.h>
+#include <device/dram/common.h>
+#include <device/mmio.h>
+#include <hwilib.h>
+#include <soc/meminit.h>
+#include <soc/romstage.h>
+#include <string.h>
+#include <types.h>
+
+void mainboard_memory_init_params(FSPM_UPD *memupd)
+{
+ static struct spd_info spd_info;
+ const struct mb_cfg *board_cfg = variant_memcfg_config();
+ static uint8_t spd_data[CONFIG_DIMM_SPD_SIZE];
+ const char *cbfs_hwi_name = "hwinfo.hex";
+
+ /* Initialize SPD information for LPDDR4x from HW-Info primarily with a fallback to
+ spd.bin in the case where the SPD data in HW-Info is not available or invalid. */
+ memset(spd_data, 0, sizeof(spd_data));
+ if ((hwilib_find_blocks(cbfs_hwi_name) == CB_SUCCESS) &&
+ (hwilib_get_field(SPD, spd_data, 0x80) == 0x80) &&
+ (ddr_crc16(spd_data, 126) == read16((void *)&spd_data[126]))) {
+ spd_info.spd_spec.spd_data_ptr_info.spd_data_ptr = (uintptr_t)spd_data;
+ spd_info.spd_spec.spd_data_ptr_info.spd_data_len = CONFIG_DIMM_SPD_SIZE;
+ spd_info.read_type = READ_SPD_MEMPTR;
+ } else {
+ die("SPD in HW-Info not valid!\n");
+ }
+ /* Initialize variant specific configurations */
+ memcfg_init(&memupd->FspmConfig, board_cfg, &spd_info, false);
+
+ /* Enable Row-Hammer prevention */
+ memupd->FspmConfig.RhPrevention = 1;
+}
diff --git a/src/mainboard/siemens/fa_ehl/variants/baseboard/include/baseboard/variants.h b/src/mainboard/siemens/fa_ehl/variants/baseboard/include/baseboard/variants.h
new file mode 100644
index 0000000..0893d99
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/variants/baseboard/include/baseboard/variants.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __BASEBOARD_VARIANTS_H__
+#define __BASEBOARD_VARIANTS_H__
+
+#include <soc/gpio.h>
+#include <soc/meminit.h>
+#include <stdint.h>
+
+/* The following 2 functions return the gpio table and fill in the number
+ * of entries for each table. */
+const struct pad_config *variant_gpio_table(size_t *num);
+const struct pad_config *variant_early_gpio_table(size_t *num);
+
+/* This function returns SPD related FSP-M mainboard configs */
+const struct mb_cfg *variant_memcfg_config(void);
+
+/* The following function performs board specific things. */
+void variant_mainboard_final(void);
+
+#endif /*__BASEBOARD_VARIANTS_H__ */
diff --git a/src/mainboard/siemens/fa_ehl/variants/fa_ehl/Kconfig b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/Kconfig
new file mode 100644
index 0000000..ecde36d
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/Kconfig
@@ -0,0 +1,22 @@
+if BOARD_SIEMENS_FA_EHL
+
+config BOARD_SPECIFIC_OPTIONS
+ def_bool y
+ select DRIVERS_I2C_RV3028C7
+ select DRIVER_INTEL_I210
+ select SOC_INTEL_COMMON_BLOCK_LPC_COMB_ENABLE
+ select EHL_TSN_DRIVER
+ select DRIVERS_ETH_PHY_M88E1512
+ select MAINBOARD_HAS_TPM2
+ select MEMORY_MAPPED_TPM
+ select TPM_MEASURED_BOOT
+ select TPM_MEASURED_BOOT_INIT_BOOTBLOCK
+
+config FMDFILE
+ default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/fa_ehl.fmd"
+
+config UART_FOR_CONSOLE
+ int
+ default 0
+
+endif # BOARD_SIEMENS_FA_EHL
diff --git a/src/mainboard/siemens/fa_ehl/variants/fa_ehl/Makefile.inc b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/Makefile.inc
new file mode 100644
index 0000000..6e87f9f
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/Makefile.inc
@@ -0,0 +1,6 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+bootblock-y += gpio.c
+romstage-y += memory.c
+ramstage-y += gpio.c
+ramstage-y += mainboard.c
diff --git a/src/mainboard/siemens/fa_ehl/variants/fa_ehl/devicetree.cb b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/devicetree.cb
new file mode 100644
index 0000000..f14c225
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/devicetree.cb
@@ -0,0 +1,250 @@
+chip soc/intel/elkhartlake
+
+ device cpu_cluster 0 on end
+
+ # GPE configuration
+ # Note that GPE events called out in ASL code rely on this
+ # route. i.e. If this route changes then the affected GPE
+ # offset bits also need to be changed.
+ register "pmc_gpe0_dw0" = "GPP_B"
+ register "pmc_gpe0_dw1" = "GPP_F"
+ register "pmc_gpe0_dw2" = "GPP_E"
+
+ # FSP configuration
+ register "SaGv" = "SaGv_Disabled"
+
+ # Enable IBECC for the complete memory
+ register "ibecc" = "{
+ .enable = 1,
+ .mode = IBECC_ALL
+ }"
+
+ # USB related UPDs
+ register "usb2_ports[0]" = "USB2_PORT_MID(OC2)" # X125/X135
+ register "usb2_ports[1]" = "USB2_PORT_MID(OC2)" # X125/X135
+ register "usb2_ports[2]" = "USB2_PORT_MID(OC0)" # X145/X155
+ register "usb2_ports[3]" = "USB2_PORT_MID(OC0)" # X145/X155
+ register "usb2_ports[4]" = "USB2_PORT_MID(OC3)" # USB Panel
+ register "usb2_ports[5]" = "USB2_PORT_MID(OC3)" # USB Panel
+ register "usb2_ports[6]" = "USB2_PORT_EMPTY"
+ register "usb2_ports[7]" = "USB2_PORT_EMPTY"
+ register "usb2_ports[8]" = "USB2_PORT_EMPTY"
+ register "usb2_ports[9]" = "USB2_PORT_EMPTY"
+
+ register "usb3_ports[0]" = "USB3_PORT_DEFAULT(OC_SKIP)" # USB3/2 Type A port1
+ register "usb3_ports[1]" = "USB3_PORT_DEFAULT(OC_SKIP)" # USB3/2 Type A port2
+ register "usb3_ports[2]" = "USB3_PORT_EMPTY" # UNUSED
+ register "usb3_ports[3]" = "USB3_PORT_EMPTY" # UNUSED
+
+ # Skip the CPU replacement check
+ register "SkipCpuReplacementCheck" = "1"
+
+ # PCIe root ports related UPDs
+ register "PcieRpEnable[1]" = "1"
+ register "PcieRpEnable[6]" = "1"
+
+ register "PcieClkSrcUsage[0]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcUsage[1]" = "PCIE_CLK_FREE"
+ register "PcieClkSrcUsage[2]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcUsage[3]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcUsage[4]" = "PCIE_CLK_FREE"
+ register "PcieClkSrcUsage[5]" = "PCIE_CLK_NOTUSED"
+
+ register "PcieClkSrcClkReq[0]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcClkReq[1]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcClkReq[2]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcClkReq[3]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcClkReq[4]" = "PCIE_CLK_NOTUSED"
+ register "PcieClkSrcClkReq[5]" = "PCIE_CLK_NOTUSED"
+
+ # Disable all L1 substates for PCIe root ports
+ register "PcieRpL1Substates[1]" = "L1_SS_DISABLED"
+ register "PcieRpL1Substates[6]" = "L1_SS_DISABLED"
+
+ # Disable LTR for all PCIe root ports
+ register "PcieRpLtrDisable[1]" = "true"
+ register "PcieRpLtrDisable[6]" = "true"
+
+ # Storage (SDCARD/EMMC) related UPDs
+ register "ScsEmmcHs400Enabled" = "0"
+ register "ScsEmmcDdr50Enabled" = "1"
+ register "SdCardPowerEnableActiveHigh" = "1"
+
+ # GPIO for SD card detect
+ register "sdcard_cd_gpio" = "GPP_G5"
+
+ # LPSS Serial IO (I2C/UART/GSPI) related UPDs
+ register "SerialIoI2cMode" = "{
+ [PchSerialIoIndexI2C0] = PchSerialIoPci,
+ [PchSerialIoIndexI2C1] = PchSerialIoPci,
+ [PchSerialIoIndexI2C2] = PchSerialIoPci,
+ [PchSerialIoIndexI2C3] = PchSerialIoPci,
+ [PchSerialIoIndexI2C4] = PchSerialIoPci,
+ [PchSerialIoIndexI2C5] = PchSerialIoPci,
+ [PchSerialIoIndexI2C6] = PchSerialIoDisabled,
+ [PchSerialIoIndexI2C7] = PchSerialIoDisabled,
+ }"
+
+ register "SerialIoUartMode" = "{
+ [PchSerialIoIndexUART0] = PchSerialIoPci,
+ [PchSerialIoIndexUART1] = PchSerialIoPci,
+ [PchSerialIoIndexUART2] = PchSerialIoPci,
+ }"
+
+ register "SerialIoUartDmaEnable" = "{
+ [PchSerialIoIndexUART0] = 1,
+ [PchSerialIoIndexUART1] = 1,
+ [PchSerialIoIndexUART2] = 1,
+ }"
+
+ # TSN GBE related UPDs
+ register "PchTsnGbeLinkSpeed" = "Tsn_1_Gbps"
+ register "PchTsnGbeSgmiiEnable" = "1"
+ register "PseDmaOwn[0]" = "Host_Owned"
+ register "PseDmaOwn[1]" = "Host_Owned"
+ register "pch_tsn_phy_irq_edge" = "RISING_EDGE"
+ register "pse_tsn_phy_irq_edge[0]" = "RISING_EDGE"
+ register "pse_tsn_phy_irq_edge[1]" = "RISING_EDGE"
+
+ register "common_soc_config" = "{
+ .i2c[1] = {
+ .speed = I2C_SPEED_STANDARD,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_STANDARD,
+ .scl_hcnt = 0x1e1,
+ .scl_lcnt = 0x1f4,
+ .sda_hold = 0x64
+ },
+ },
+ .i2c[2] = {
+ .speed = I2C_SPEED_STANDARD,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_STANDARD,
+ .scl_hcnt = 0x1df,
+ .scl_lcnt = 0x1f4,
+ .sda_hold = 0x64
+ },
+ },
+ }"
+
+ # FIVR related settings
+ register "fivr" = "{
+ .fivr_config_en = true,
+ .vcc_low_high_us = 50,
+ }"
+
+ # Disable L1 prefetcher for real-time demands
+ register "L1_prefetcher_disable" = "true"
+
+ device domain 0 on
+ device pci 00.0 on end # Host Bridge
+ device pci 02.0 on end # Integrated Graphics Device
+
+ device pci 14.0 on end # USB3.1 xHCI
+
+ device pci 15.0 on end # I2C0
+ device pci 15.1 on # I2C1
+ # Enable external RTC chip
+ chip drivers/i2c/rv3028c7
+ register "bus_speed" = "I2C_SPEED_STANDARD"
+ register "set_user_date" = "1"
+ register "user_year" = "04"
+ register "user_month" = "07"
+ register "user_day" = "01"
+ register "user_weekday" = "4"
+ register "bckup_sw_mode" = "BACKUP_SW_LEVEL"
+ register "cap_charge" = "CHARGE_OFF"
+ device i2c 0x52 on end # RTC RV3028-C7
+ end
+ end
+ device pci 15.2 on # I2C2
+ # Add dummy I2C device to limit BUS speed to 100 kHz in OS
+ chip drivers/i2c/generic
+ register "hid" = ""PRP0001""
+ register "speed" = "I2C_SPEED_STANDARD"
+ device i2c 0x7f on end
+ end
+ end
+ device pci 15.3 on end # I2C3
+
+ device pci 16.0 hidden end # Management Engine Interface 1
+
+ device pci 19.0 on end # I2C4
+ device pci 19.1 on end # I2C5
+ device pci 19.2 on end # UART2
+
+ device pci 1a.0 on end # eMMC
+ device pci 1a.1 on end # SD
+
+ device pci 1c.1 on end # RP2 (pcie0 single VC)
+ device pci 1c.6 on end # RP7 (pcie3 multi VC)
+
+ device pci 1d.0 off end # Intel PSE IPC (local host to PSE)
+ device pci 1d.1 on # Intel PSE Time-Sensitive Networking GbE 0
+ # Enable external Marvell PHY 88E1512
+ chip drivers/net/phy/m88e1512
+ register "configure_leds" = "true"
+ # LED[0]: On - 1000 Mbps Link, Off - Else
+ register "led_0_ctrl" = "7"
+ # LED[1]: On - Link, Blink - Activity, Off - No Link
+ register "led_1_ctrl" = "1"
+ # INTn is routed to LED[2] pin
+ register "enable_int" = "true"
+ register "downshift_cnt" = "2"
+ register "force_mos" = "true"
+ register "pmos_val" = "0xF"
+ register "nmos_val" = "0xA"
+ device mdio 0 on # PHY address
+ ops m88e1512_ops
+ end
+ end
+ end
+ device pci 1d.2 on # Intel PSE Time-Sensitive Networking GbE 1
+ # Enable external Marvell PHY 88E1512
+ chip drivers/net/phy/m88e1512
+ register "configure_leds" = "true"
+ # LED[0]: On - 1000 Mbps Link, Off - Else
+ register "led_0_ctrl" = "7"
+ # LED[1]: On - Link, Blink - Activity, Off - No Link
+ register "led_1_ctrl" = "1"
+ # INTn is routed to LED[2] pin
+ register "enable_int" = "true"
+ register "downshift_cnt" = "2"
+ register "force_mos" = "true"
+ register "pmos_val" = "0xF"
+ register "nmos_val" = "0xA"
+ device mdio 1 on # PHY address
+ ops m88e1512_ops
+ end
+ end
+ end
+
+ device pci 1e.0 on end # UART0
+ device pci 1e.1 on end # UART1
+ device pci 1e.4 on # PCH Time-Sensitive Networking GbE
+ # Enable external Marvell PHY 88E1512
+ chip drivers/net/phy/m88e1512
+ register "configure_leds" = "true"
+ # LED[0]: On - 1000 Mbps Link, Off - Else
+ register "led_0_ctrl" = "7"
+ # LED[1]: On - Link, Blink - Activity, Off - No Link
+ register "led_1_ctrl" = "1"
+ # INTn is routed to LED[2] pin
+ register "enable_int" = "true"
+ register "downshift_cnt" = "2"
+ device mdio 1 on # PHY address
+ ops m88e1512_ops
+ end
+ end
+ end
+
+ device pci 1f.0 on # eSPI Interface
+ chip drivers/pc80/tpm
+ device pnp 0c31.0 on end
+ end
+ end
+ device pci 1f.2 hidden end # Power Management Controller
+ device pci 1f.4 on end # SMBus
+ device pci 1f.5 on end # PCH SPI (flash & TPM)
+ end
+end
diff --git a/src/mainboard/siemens/fa_ehl/variants/fa_ehl/gpio.c b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/gpio.c
new file mode 100644
index 0000000..20a89c6
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/gpio.c
@@ -0,0 +1,159 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <commonlib/helpers.h>
+
+/* Pad configuration in ramstage */
+static const struct pad_config gpio_table[] = {
+
+ /* Community 0 - GpioGroup GPP_B */
+ PAD_CFG_NF(GPP_B2, NONE, PLTRST, NF1), /* PMC_VRALERT_N */
+ PAD_CFG_NF(GPP_B3, NONE, PLTRST, NF4), /* ESPI_ALERT0_N */
+ PAD_NC(GPP_B4, NONE), /* Not connected */
+ PAD_NC(GPP_B9, NONE), /* Not connected */
+ PAD_NC(GPP_B10, NONE), /* Not connected */
+ PAD_CFG_NF(GPP_B11, NONE, PLTRST, NF1), /* PMC_ALERT_N */
+ PAD_NC(GPP_B14, NONE), /* Not connected */
+ PAD_NC(GPP_B15, NONE), /* Not connected */
+ PAD_NC(GPP_B18, NONE), /* Not connected */
+ PAD_NC(GPP_B19, NONE), /* Not connected */
+ PAD_NC(GPP_B23, NONE), /* Not connected */
+
+ /* Community 0 - GpioGroup GPP_T */
+ PAD_CFG_NF(GPP_T4, NONE, DEEP, NF1), /* PSE_GBE0_INT */
+ PAD_CFG_GPO(GPP_T5, 1, DEEP), /* PSE_GBE0_RST_N */
+ PAD_CFG_NF(GPP_T6, NONE, DEEP, NF1), /* PSE_GBE0_AUXTS */
+ PAD_CFG_NF(GPP_T7, NONE, DEEP, NF1), /* PSE_GBE0_PPS */
+ PAD_CFG_NF(GPP_T12, NONE, DEEP, NF2), /* SIO_UART0_RXD */
+ PAD_CFG_NF(GPP_T13, NONE, DEEP, NF2), /* SIO_UART0_TXD */
+
+ /* Community 0 - GpioGroup GPP_G */
+ PAD_NC(GPP_G8, NONE), /* Not connected */
+ PAD_NC(GPP_G9, NONE), /* Not connected */
+ PAD_CFG_GPI(GPP_G19, UP_20K, PLTRST), /* TPM_IRQ_N */
+
+ /* Community 1 - GpioGroup GPP_V */
+ PAD_CFG_NF(GPP_V0, UP_20K, DEEP, NF1), /* EMMC_CMD */
+ PAD_CFG_NF(GPP_V1, UP_20K, DEEP, NF1), /* EMMC_DATA0 */
+ PAD_CFG_NF(GPP_V2, UP_20K, DEEP, NF1), /* EMMC_DATA1 */
+ PAD_CFG_NF(GPP_V3, UP_20K, DEEP, NF1), /* EMMC_DATA2 */
+ PAD_CFG_NF(GPP_V4, UP_20K, DEEP, NF1), /* EMMC_DATA3 */
+ PAD_CFG_NF(GPP_V5, UP_20K, DEEP, NF1), /* EMMC_DATA4 */
+ PAD_CFG_NF(GPP_V6, UP_20K, DEEP, NF1), /* EMMC_DATA5 */
+ PAD_CFG_NF(GPP_V7, UP_20K, DEEP, NF1), /* EMMC_DATA6 */
+ PAD_CFG_NF(GPP_V8, UP_20K, DEEP, NF1), /* EMMC_DATA7 */
+ PAD_CFG_NF(GPP_V9, DN_20K, DEEP, NF1), /* EMMC_RCLK */
+ PAD_CFG_NF(GPP_V10, DN_20K, DEEP, NF1), /* EMMC_CLK */
+ PAD_CFG_NF(GPP_V11, NONE, DEEP, NF1), /* EMMC_RESET */
+
+ /* Community 1 - GpioGroup GPP_H */
+ PAD_CFG_NF(GPP_H0, NONE, DEEP, NF1), /* PSE_GBE1_INT */
+ PAD_CFG_GPO(GPP_H1, 1, DEEP), /* PSE_GBE1_RST_N */
+ PAD_CFG_NF(GPP_H2, NONE, DEEP, NF1), /* PSE_GBE1_AUXTS */
+ PAD_CFG_NF(GPP_H3, NONE, DEEP, NF1), /* PSE_GBE1_PPS */
+ PAD_CFG_NF(GPP_H10, NONE, DEEP, NF1), /* PCIE_CLKREQ4_N */
+ PAD_CFG_NF(GPP_H11, NONE, DEEP, NF1), /* PCIE_CLKREQ5_N */
+
+ /* Community 1 - GpioGroup GPP_D */
+ PAD_CFG_NF(GPP_D5, NONE, DEEP, NF1), /* PCIE_CLKREQ0_N */
+ PAD_CFG_NF(GPP_D6, NONE, DEEP, NF1), /* PCIE_CLKREQ1_N */
+ PAD_CFG_NF(GPP_D7, NONE, DEEP, NF1), /* PCIE_CLKREQ2_N */
+ PAD_CFG_NF(GPP_D8, NONE, DEEP, NF1), /* PCIE_CLKREQ3_N */
+
+ /* Community 1 - GpioGroup GPP_U */
+ PAD_CFG_NF(GPP_U0, NONE, DEEP, NF1), /* GBE_INT */
+ PAD_CFG_GPO(GPP_U1, 1, DEEP), /* GBE_RST_N */
+ PAD_NC(GPP_U12, NONE), /* Not connected */
+ PAD_NC(GPP_U13, NONE), /* Not connected */
+ PAD_NC(GPP_U16, NONE), /* Not connected */
+ PAD_NC(GPP_U17, NONE), /* Not connected */
+ PAD_NC(GPP_U18, NONE), /* Not connected */
+
+ /* Community 2 - GpioGroup DSW */
+ PAD_CFG_NF(GPD1, NONE, PLTRST, NF1), /* ACPRESENT */
+ PAD_NC(GPD9, NONE), /* Not connected */
+ PAD_NC(GPD11, NONE), /* Not connected */
+
+ /* Community 3 - GpioGroup GPP_S */
+ PAD_NC(GPP_S0, NONE), /* Not connected */
+ PAD_NC(GPP_S1, NONE), /* Not connected */
+
+ /* Community 3 - GpioGroup GPP_A */
+ PAD_CFG_NF(GPP_A0, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_TXD3 */
+ PAD_CFG_NF(GPP_A1, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_TXD2 */
+ PAD_CFG_NF(GPP_A2, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_TXD1 */
+ PAD_CFG_NF(GPP_A3, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_TXD0 */
+ PAD_CFG_NF(GPP_A4, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_TXCLK */
+ PAD_CFG_NF(GPP_A5, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_TXCTL */
+ PAD_CFG_NF(GPP_A6, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_RXCLK */
+ PAD_CFG_NF(GPP_A7, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_RXD3 */
+ PAD_CFG_NF(GPP_A8, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_RXD2 */
+ PAD_CFG_NF(GPP_A9, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_RXD1 */
+ PAD_CFG_NF(GPP_A10, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_RXD0 */
+ PAD_CFG_NF(GPP_A11, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_TXD3 */
+ PAD_CFG_NF(GPP_A12, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_TXD2 */
+ PAD_CFG_NF(GPP_A13, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_TXD1 */
+ PAD_CFG_NF(GPP_A14, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_TXD0 */
+ PAD_CFG_NF(GPP_A15, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_TXCLK */
+ PAD_CFG_NF(GPP_A16, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_TXCTL */
+ PAD_CFG_NF(GPP_A17, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_RXCLK */
+ PAD_CFG_NF(GPP_A18, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_RXCTL */
+ PAD_CFG_NF(GPP_A19, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_RXD3 */
+ PAD_CFG_NF(GPP_A20, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_RXD2 */
+ PAD_CFG_NF(GPP_A21, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_RXD1 */
+ PAD_CFG_NF(GPP_A22, NONE, DEEP, NF1), /* PSE_GBE1_RGMII_RXD0 */
+ PAD_CFG_NF(GPP_A23, NONE, DEEP, NF1), /* PSE_GBE0_RGMII_RXCTL */
+
+ /* Community 4 - GpioGroup GPP_C */
+ PAD_CFG_NF(GPP_C3, NONE, DEEP, NF1), /* PSE_GBE0_MDC */
+ PAD_CFG_NF(GPP_C4, NONE, DEEP, NF1), /* PSE_GBE0_MDIO */
+ PAD_CFG_NF(GPP_C6, NONE, DEEP, NF1), /* PSE_GBE1_MDC */
+ PAD_CFG_NF(GPP_C7, NONE, DEEP, NF1), /* PSE_GBE1_MDIO */
+ PAD_NC(GPP_C8, NONE), /* Not connected */
+ PAD_CFG_NF(GPP_C12, NONE, DEEP, NF4), /* SIO_UART1_RXD */
+ PAD_CFG_NF(GPP_C13, NONE, DEEP, NF4), /* SIO_UART1_TXD */
+ PAD_CFG_NF(GPP_C16, NONE, DEEP, NF1), /* GBE_MDIO */
+ PAD_CFG_NF(GPP_C17, NONE, DEEP, NF1), /* GBE_MDC */
+
+ /* Community 4 - GpioGroup GPP_F */
+ PAD_NC(GPP_F1, NONE), /* Not connected */
+ PAD_NC(GPP_F3, NONE), /* Not connected */
+ PAD_NC(GPP_F8, NONE), /* Not connected */
+ PAD_NC(GPP_F11, NONE), /* Not connected */
+ PAD_NC(GPP_F12, NONE), /* Not connected */
+ PAD_NC(GPP_F13, NONE), /* Not connected */
+ PAD_NC(GPP_F14, NONE), /* Not connected */
+ PAD_NC(GPP_F15, NONE), /* Not connected */
+ PAD_NC(GPP_F16, NONE), /* Not connected */
+ PAD_NC(GPP_F17, NONE), /* Not connected */
+ PAD_CFG_GPO(GPP_F20, 0, DEEP), /* LED_BIOS_DONE */
+
+ /* Community 4 - GpioGroup GPP_E */
+ PAD_CFG_NF(GPP_E0, NONE, DEEP, NF1), /* SATA_LED_N */
+ PAD_CFG_NF(GPP_E8, NONE, DEEP, NF2), /* M.2_SSD_SATA_DEVSLP_1 */
+ PAD_NC(GPP_E15, NONE), /* Not connected */
+ PAD_NC(GPP_E16, NONE), /* Not connected */
+ PAD_NC(GPP_E18, NONE), /* Not connected */
+ PAD_NC(GPP_E19, NONE), /* Not connected */
+ PAD_NC(GPP_E23, NONE), /* Not connected */
+
+ /* Community 5 - GpioGroup GPP_R */
+ PAD_NC(GPP_R1, NONE), /* Not connected */
+ PAD_NC(GPP_R3, NONE), /* Not connected */
+};
+
+/* Early pad configuration in bootblock */
+static const struct pad_config early_gpio_table[] = {
+};
+
+const struct pad_config *variant_gpio_table(size_t *num)
+{
+ *num = ARRAY_SIZE(gpio_table);
+ return gpio_table;
+}
+
+const struct pad_config *variant_early_gpio_table(size_t *num)
+{
+ *num = ARRAY_SIZE(early_gpio_table);
+ return early_gpio_table;
+}
diff --git a/src/mainboard/siemens/fa_ehl/variants/fa_ehl/mainboard.c b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/mainboard.c
new file mode 100644
index 0000000..1121399
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/mainboard.c
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <bootstate.h>
+#include <device/pci_ids.h>
+#include <gpio.h>
+#include <intelblocks/pcr.h>
+#include <soc/pci_devs.h>
+#include <soc/pcr_ids.h>
+
+#define HOSTCTRL2 0x3E
+#define HOSTCTRL2_PRESET (1 << 15)
+#define SD_CAP_BYP 0x810
+#define SD_CAP_BYP_EN 0x5A
+#define SD_CAP_BYP_REG1 0x814
+#define SD_CAP_BYP_SDR50 (1 << 13)
+#define SD_CAP_BYP_SDR104 (1 << 14)
+#define SD_CAP_BYP_DDR50 (1 << 15)
+
+void variant_mainboard_final(void)
+{
+ struct device *dev;
+
+ /* PIR8 register mapping for PCIe root ports
+ INTA#->PIRQC#, INTB#->PIRQD#, INTC#->PIRQA#, INTD#-> PIRQB# */
+ pcr_write16(PID_ITSS, 0x3150, 0x1032);
+
+ /* Disable clock outputs 1-5 (CLKOUT) for XIO2001 PCIe to PCI Bridge. */
+ dev = dev_find_device(PCI_VID_TI, PCI_DID_TI_XIO2001, 0);
+ if (dev)
+ pci_write_config8(dev, 0xd8, 0x3e);
+
+ /* Limit SD-Card speed to DDR50 mode to avoid SDR104/SDR50 modes due to
+ layout limitations. */
+ dev = pcidev_path_on_root(PCH_DEVFN_SDCARD);
+ if (dev) {
+ uint32_t reg;
+ uint16_t reg16;
+ struct resource *res = probe_resource(dev, PCI_BASE_ADDRESS_0);
+ if (!res)
+ return;
+ write32(res2mmio(res, SD_CAP_BYP, 0), SD_CAP_BYP_EN);
+ reg = read32(res2mmio(res, SD_CAP_BYP_REG1, 0));
+ /* Disable SDR104 and SDR50 mode while keeping DDR50 mode enabled. */
+ reg &= ~(SD_CAP_BYP_SDR104 | SD_CAP_BYP_SDR50);
+ reg |= SD_CAP_BYP_DDR50;
+ write32(res2mmio(res, SD_CAP_BYP_REG1, 0), reg);
+
+ /* Use preset driver strength from preset value registers. */
+ reg16 = read16(res2mmio(res, HOSTCTRL2, 0));
+ reg16 |= HOSTCTRL2_PRESET;
+ write16(res2mmio(res, HOSTCTRL2, 0), reg16);
+ }
+}
+
+static void finalize_boot(void *unused)
+{
+ /* Set coreboot ready LED. */
+ gpio_output(GPP_F20, 1);
+}
+
+BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_BOOT, BS_ON_ENTRY, finalize_boot, NULL);
diff --git a/src/mainboard/siemens/fa_ehl/variants/fa_ehl/memory.c b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/memory.c
new file mode 100644
index 0000000..b055c4d
--- /dev/null
+++ b/src/mainboard/siemens/fa_ehl/variants/fa_ehl/memory.c
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <gpio.h>
+#include <soc/meminit.h>
+#include <soc/romstage.h>
+
+static const struct mb_cfg fa_ehl_lpddr4x_memcfg_cfg = {
+
+ .dq_map[DDR_CH0] = {
+ {0xf, 0xf0},
+ {0xf, 0xf0},
+ {0xff, 0x0},
+ {0x0, 0x0},
+ {0x0, 0x0},
+ {0x0, 0x0}
+ },
+
+ .dq_map[DDR_CH1] = {
+ {0xf, 0xf0},
+ {0xf, 0xf0},
+ {0xff, 0x0},
+ {0x0, 0x0},
+ {0x0, 0x0},
+ {0x0, 0x0}
+ },
+
+ /*
+ * The dqs_map arrays map the ddr4 pins to the SoC pins
+ * for both channels.
+ *
+ * the index = pin number on ddr4 part
+ * the value = pin number on SoC
+ */
+ .dqs_map[DDR_CH0] = {3, 0, 1, 2, 7, 4, 5, 6},
+ .dqs_map[DDR_CH1] = {3, 0, 1, 2, 7, 4, 5, 6},
+
+ /* Baseboard uses 100, 100 and 100 rcomp resistors */
+ .rcomp_resistor = {100, 100, 100},
+
+ .rcomp_targets = {60, 40, 30, 20, 30},
+
+ /* LPDDR4x does not allow interleaved memory */
+ .dq_pins_interleaved = 0,
+
+ /* Baseboard is using config 2 for vref_ca */
+ .vref_ca_config = 2,
+
+ /* Enable Early Command Training */
+ .ect = 1,
+
+ /* Set Board Type */
+ .UserBd = BOARD_TYPE_MOBILE,
+};
+
+const struct mb_cfg *variant_memcfg_config(void)
+{
+ return &fa_ehl_lpddr4x_memcfg_cfg;
+}