11 files changed, 233 insertions, 0 deletions
diff --git a/src/mainboard/intel/beechnutcity_crb/Kconfig b/src/mainboard/intel/beechnutcity_crb/Kconfig
new file mode 100644
index 0000000000..3c2f02a9ea
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/Kconfig
@@ -0,0 +1,37 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+if BOARD_INTEL_BEECHNUTCITY_CRB
+
+config BOARD_SPECIFIC_OPTIONS
+	def_bool y
+	select BOARD_ROMSIZE_KB_65536
+	select SOC_INTEL_GRANITERAPIDS
+	select SUPERIO_ASPEED_AST2400
+	select HAVE_ACPI_TABLES
+	select IPMI_KCS
+	select IPMI_KCS_ROMSTAGE
+	select VPD
+	select OCP_VPD
+	select MEMORY_MAPPED_TPM
+
+config CARDBUS_PLUGIN_SUPPORT
+	bool
+	default n
+
+config MAINBOARD_DIR
+	string
+	default "intel/beechnutcity_crb"
+
+config MAINBOARD_PART_NUMBER
+	string
+	default "Beechnut City CRB"
+
+config FMDFILE
+	string
+	default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/board.fmd"
+
+config DIMM_MAX
+	int
+	default 1
+
+endif
diff --git a/src/mainboard/intel/beechnutcity_crb/Kconfig.name b/src/mainboard/intel/beechnutcity_crb/Kconfig.name
new file mode 100644
index 0000000000..083fbf0335
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/Kconfig.name
@@ -0,0 +1,4 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+config BOARD_INTEL_BEECHNUTCITY_CRB
+	bool "Beechnut City CRB"
diff --git a/src/mainboard/intel/beechnutcity_crb/Makefile.mk b/src/mainboard/intel/beechnutcity_crb/Makefile.mk
new file mode 100644
index 0000000000..2e1a74a45a
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/Makefile.mk
@@ -0,0 +1,6 @@
+## SPDX-License-Identifier: GPL-2.0-only
+
+bootblock-y += bootblock.c
+romstage-y += romstage.c
+romstage-y += config/iio.c
+ramstage-y += ramstage.c
diff --git a/src/mainboard/intel/beechnutcity_crb/board.fmd b/src/mainboard/intel/beechnutcity_crb/board.fmd
new file mode 100644
index 0000000000..df5bc059f4
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/board.fmd
@@ -0,0 +1,12 @@
+FLASH@0xfc000000 64M {
+	SI_ALL 48M {
+		SI_DESC@0x0 0x1000
+	}
+	SI_BIOS 16M {
+		RW_MRC_CACHE 0x10000
+		FMAP 0x800
+		RW_VPD(PRESERVE) 0x4000
+		RO_VPD(PRESERVE) 0x4000
+		COREBOOT(CBFS)
+	}
+}
diff --git a/src/mainboard/intel/beechnutcity_crb/board_info.txt b/src/mainboard/intel/beechnutcity_crb/board_info.txt
new file mode 100644
index 0000000000..1de903ec8a
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/board_info.txt
@@ -0,0 +1,6 @@
+Vendor name: Intel
+Board name: Beechnut City CRB
+Category: eval
+ROM protocol: SPI
+ROM socketed: y
+Flashrom support: y
diff --git a/src/mainboard/intel/beechnutcity_crb/bootblock.c b/src/mainboard/intel/beechnutcity_crb/bootblock.c
new file mode 100644
index 0000000000..e68d874c90
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/bootblock.c
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <console/console.h>
+#include <intelblocks/lpc_lib.h>
+#include <soc/intel/common/block/lpc/lpc_def.h>
+#include <superio/aspeed/ast2400/ast2400.h>
+#include <superio/aspeed/common/aspeed.h>
+
+#define ASPEED_SIO_PORT 0x2E
+
+void bootblock_mainboard_early_init(void)
+{
+	/* Enable eSPI decoding for com1 (0x3f8), com2 (02f8) and superio (0x2e) */
+	lpc_io_setup_comm_a_b();
+	lpc_enable_fixed_io_ranges(LPC_IOE_SUPERIO_2E_2F);
+
+	if (CONFIG_UART_FOR_CONSOLE == 0) {
+		/* Setup superio com1 */
+		const pnp_devfn_t serial_dev = PNP_DEV(ASPEED_SIO_PORT, AST2400_SUART1);
+		aspeed_enable_serial(serial_dev, CONFIG_TTYS0_BASE);
+	} else
+		die("COMs other than COM1 not supported\n");
+}
diff --git a/src/mainboard/intel/beechnutcity_crb/config/iio.c b/src/mainboard/intel/beechnutcity_crb/config/iio.c
new file mode 100644
index 0000000000..117d604a2d
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/config/iio.c
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <soc/iio.h>
+
+static const struct iio_pe_config iio_config_table[] = {
+	/*
+	 * CB_IIO_BIFURCATE_x8x2x2x2x2 is first set to indicate how the IIO is bifurcated
+	 * then port settings are listed accordingly. The minimal port elements are x2.
+	 * If an x8 port is enabled, the neighboring 3 x2 port elements needs to be
+	 * disabled.
+	 */
+	{_IIO_PE_CFG_STRUCT(0x0, PE0, CB_IIO_BIFURCATE_x8x2x2x2x2, PE_TYPE_PCIE) {
+		/* _IIO_PORT_CFG_STRUCT_BASIC(sltpls, sltplv, psn) */
+		_IIO_PORT_CFG_STRUCT_BASIC_X8(0x0, 0x4B, 0x1),
+		_IIO_PORT_CFG_STRUCT_DISABLED,
+		_IIO_PORT_CFG_STRUCT_DISABLED,
+		_IIO_PORT_CFG_STRUCT_DISABLED,
+		_IIO_PORT_CFG_STRUCT_BASIC_X2(0x0, 0x4B, 0x2),
+		_IIO_PORT_CFG_STRUCT_BASIC_X2(0x0, 0x4B, 0x3),
+		_IIO_PORT_CFG_STRUCT_BASIC_X2(0x0, 0x4B, 0x4),
+		_IIO_PORT_CFG_STRUCT_BASIC_X2(0x0, 0x4B, 0x5),
+	}},
+};
+
+const struct iio_pe_config *get_iio_config_table(int *size)
+{
+	*size = ARRAY_SIZE(iio_config_table);
+	return iio_config_table;
+}
diff --git a/src/mainboard/intel/beechnutcity_crb/devicetree.cb b/src/mainboard/intel/beechnutcity_crb/devicetree.cb
new file mode 100644
index 0000000000..0754916c39
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/devicetree.cb
@@ -0,0 +1,37 @@
+## SPDX-License-Identifier: GPL-2.0-or-later
+
+chip soc/intel/xeon_sp/gnr
+
+	# configure LPC generic IO decode ranges
+	# 	[bits 31..24: reserved]
+	# 	[bits 23..18: io decode address mask <7..2>]
+	# 	[bits 17..16: reserved]
+	# 	[bits 15..2 : io decode dword aligned address <15..2>]
+	#	[bit 1      : reserved]
+	#	[bit 0      : enabled]
+	register "gen1_dec" = "0x00000CA1" # IPMI KCS
+
+	# configure FSP debug settings
+	register "serial_io_uart_debug_io_base" = CONFIG_TTYS0_BASE
+
+	device domain 0 on
+		device pci 1f.0 on
+			chip superio/common
+				device pnp 2e.0 on
+					chip superio/aspeed/ast2400
+						register "use_espi" = "1"
+						device pnp 2e.2 on # SUART1
+							io 0x60 = 0x3f8 # PNP_IDX_IO0
+							irq 0x70 = 4 # PNP_IDX_IRQ0
+						end
+					end
+				end
+			end
+			chip drivers/ipmi
+				device pnp ca2.0 on end # BMC KCS
+				register "wait_for_bmc" = "1"
+				register "bmc_boot_timeout" = "60"
+			end
+		end
+	end
+end
diff --git a/src/mainboard/intel/beechnutcity_crb/dsdt.asl b/src/mainboard/intel/beechnutcity_crb/dsdt.asl
new file mode 100644
index 0000000000..34c29374fa
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/dsdt.asl
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#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/globalnvs.asl>
+	#include <soc/intel/xeon_sp/gnr/acpi/gpe.asl>
+	#include <southbridge/intel/common/acpi/sleepstates.asl>
+	#include <commonlib/include/commonlib/console/post_codes.h>
+	#include <arch/x86/acpi/post.asl>
+	#include <arch/x86/acpi/debug.asl>
+}
diff --git a/src/mainboard/intel/beechnutcity_crb/ramstage.c b/src/mainboard/intel/beechnutcity_crb/ramstage.c
new file mode 100644
index 0000000000..a09016d461
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/ramstage.c
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/ramstage.h>
+
+void mainboard_silicon_init_params(FSPS_UPD *params)
+{
+
+}
diff --git a/src/mainboard/intel/beechnutcity_crb/romstage.c b/src/mainboard/intel/beechnutcity_crb/romstage.c
new file mode 100644
index 0000000000..9cd8cccada
--- /dev/null
+++ b/src/mainboard/intel/beechnutcity_crb/romstage.c
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <drivers/ipmi/ipmi_if.h>
+#include <drivers/ocp/include/vpd.h>
+#include <drivers/vpd/vpd.h>
+#include <fmap_config.h>
+#include <device/device.h>
+#include <soc/ddr.h>
+#include <soc/iio.h>
+#include <soc/romstage.h>
+#include <string.h>
+
+#include "chip.h"
+
+void mainboard_memory_init_params(FSPM_UPD *mupd)
+{
+	FSP_M_CONFIG *m_cfg = &mupd->FspmConfig;
+
+	/* FSP log outputs */
+	const config_t *config = config_of_soc();
+	m_cfg->SerialIoUartDebugIoBase = config->serial_io_uart_debug_io_base;
+	m_cfg->SerialIoUartDebugEnable = get_bool_from_vpd(FSP_LOG, FSP_LOG_DEFAULT);
+	m_cfg->DebugPrintLevel = config->debug_print_level;
+	m_cfg->serialDebugMsgLvl = get_int_from_vpd_range(FSP_MEM_LOG_LEVEL,
+		FSP_MEM_LOG_LEVEL_DEFAULT, 0, 4);
+
+	/* Early connect BMC, e.g. to query configuration parameters */
+	if (ipmi_premem_init(CONFIG_BMC_KCS_BASE, 0) == CB_SUCCESS)
+		printk(BIOS_INFO, "IPMI at 0x%04x initialized successfully\n",
+			CONFIG_BMC_KCS_BASE);
+
+	/* Set BIOS regeion UPD, otherwise MTRR might set incorrectly during TempRamExit API */
+	m_cfg->BiosRegionBase = FMAP_SECTION_SI_BIOS_START;
+	m_cfg->BiosRegionSize = FMAP_SECTION_SI_BIOS_SIZE;
+	printk(BIOS_INFO, "BiosRegionBase is set to %x\n", mupd->FspmConfig.BiosRegionBase);
+	printk(BIOS_INFO, "BiosRegionSize is set to %x\n", mupd->FspmConfig.BiosRegionSize);
+
+	/* IIO init */
+	int size;
+	const struct iio_pe_config *iio_config_table = get_iio_config_table(&size);
+	soc_config_iio_pe_ports(mupd, iio_config_table, size);
+}
+
+bool mainboard_dimm_slot_exists(uint8_t socket, uint8_t channel, uint8_t dimm)
+{
+	//TODO: not implemented yet
+	return false;
+}