1 files changed, 48 insertions, 0 deletions
diff --git a/src/mainboard/ocp/deltalake/ipmi.c b/src/mainboard/ocp/deltalake/ipmi.c
index 9c5a0c0cfe..790038f380 100644
--- a/src/mainboard/ocp/deltalake/ipmi.c
+++ b/src/mainboard/ocp/deltalake/ipmi.c
@@ -129,3 +129,51 @@ void init_frb2_wdt(void)
 		ipmi_stop_bmc_wdt(CONFIG_BMC_KCS_BASE);
 	}
 }
+
+enum cb_err ipmi_set_cmos_clear(void)
+{
+	int ret;
+
+	struct ipmi_oem_rsp {
+		struct ipmi_rsp resp;
+		struct boot_order data;
+	} __packed;
+
+	struct ipmi_oem_rsp rsp;
+	struct boot_order req;
+
+	/* IPMI OEM get bios boot order command to check if the valid bit and
+	   the CMOS clear bit are both set from the response BootMode byte. */
+
+	ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
+			IPMI_OEM_GET_BIOS_BOOT_ORDER,
+			NULL, 0,
+			(unsigned char *) &rsp, sizeof(rsp));
+
+	if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
+		printk(BIOS_ERR, "IPMI: %s command failed (read ret=%d resp=0x%x)\n",
+			__func__, ret, rsp.resp.completion_code);
+		return CB_ERR;
+	}
+
+	if (!IS_CMOS_AND_VALID_BIT(rsp.data.boot_mode)) {
+		req = rsp.data;
+		SET_CMOS_AND_VALID_BIT(req.boot_mode);
+		ret = ipmi_kcs_message(CONFIG_BMC_KCS_BASE, IPMI_NETFN_OEM, 0x0,
+				IPMI_OEM_SET_BIOS_BOOT_ORDER,
+				(const unsigned char *) &req, sizeof(req),
+				(unsigned char *) &rsp, sizeof(rsp));
+
+		if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
+			printk(BIOS_ERR, "IPMI: %s command failed (sent ret=%d resp=0x%x)\n",
+				__func__, ret, rsp.resp.completion_code);
+			return CB_ERR;
+		}
+
+		printk(BIOS_INFO, "IPMI CMOS clear requested because CMOS data is invalid.\n");
+
+		return CB_SUCCESS;
+	}
+
+	return CB_SUCCESS;
+}