1 files changed, 53 insertions, 0 deletions
diff --git a/src/mainboard/protectli/vault_ehl/romstage.c b/src/mainboard/protectli/vault_ehl/romstage.c
new file mode 100644
index 000000000000..7bd1aaffe23a
--- /dev/null
+++ b/src/mainboard/protectli/vault_ehl/romstage.c
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/romstage.h>
+#include <soc/meminit.h>
+#include <spd_bin.h>
+#include "gpio.h"
+
+static const struct mb_cfg ddr4_mem_config = {
+	.UserBd = BOARD_TYPE_MOBILE,
+	.dq_pins_interleaved = 0,
+	.vref_ca_config = 2,
+	.ect = 0,
+};
+
+void mainboard_memory_init_params(FSPM_UPD *memupd)
+{
+	FSP_M_CONFIG *mem_cfg = &memupd->FspmConfig;
+
+	struct spd_info module_spd_info = {
+		.read_type = READ_SPD_MEMPTR,
+	};
+
+	/* The only DIMM slot is routed to Channel 1 */
+	struct spd_block blk = {
+		.addr_map = { 0x52 },
+	};
+
+	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
+
+	get_spd_smbus(&blk);
+	dump_spd_info(&blk);
+
+	if (blk.spd_array[0] == NULL)
+		die("No memory detected. Insert DIMM module");
+
+	module_spd_info.spd_spec.spd_data_ptr_info.spd_data_ptr = (uintptr_t)blk.spd_array[0];
+	module_spd_info.spd_spec.spd_data_ptr_info.spd_data_len = (uintptr_t)blk.len;
+
+	/* Set half_populated as false, because DIMM is on Channel 1 */
+	memcfg_init(mem_cfg, &ddr4_mem_config, &module_spd_info, false);
+
+	/* Clear Channel 0 DIMM 0 SPD, as the slot is not populated */
+	mem_cfg->MemorySpdPtr00 = 0;
+	/* Return back to coreboot if something goes wrong */
+	mem_cfg->ExitOnFailure = 1;
+
+	/* Disable both DIMMs at Channel 0 */
+	mem_cfg->DisableDimmChannel0 = 3;
+	/* Disable DIMM 1 at Channel 1 */
+	mem_cfg->DisableDimmChannel1 = 2;
+
+	mem_cfg->Lp4DqsOscEn = 0;
+}