ipmi/ocp: Move common OCP/Facebook IPMI OEM codes into drivers/ipmi/ocp

1. These are common OCP/Facebook IPMI OEM commands, move from mainboard
into drivers/ipmi/ocp to avoid code duplication and provide better
reusability.
2. OCP Tioga Pass enables IPMI_OCP driver.

Tested=On OCP Delta Lake and Tioga Pass verify the commands still work
correctly.

Change-Id: Idd116a89239273fd5cc7b06c7768146085a3ed69
Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49235
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>

4 files changed, 136 insertions, 0 deletions

diff --git a/src/drivers/ipmi/ocp/Makefile.inc b/src/drivers/ipmi/ocp/Makefile.inc
index 8291f82677..c77ee4a964 100644
--- a/src/drivers/ipmi/ocp/Makefile.inc
+++ b/src/drivers/ipmi/ocp/Makefile.inc
@@ -1 +1,4 @@
 ramstage-$(CONFIG_IPMI_OCP) += ipmi_ocp.c
+ifeq ($(CONFIG_IPMI_OCP),y)
+romstage-$(CONFIG_IPMI_KCS_ROMSTAGE) += ipmi_ocp_romstage.c
+endif
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp.c b/src/drivers/ipmi/ocp/ipmi_ocp.c
index 07628ee1ff..ee38bb0076 100644
--- a/src/drivers/ipmi/ocp/ipmi_ocp.c
+++ b/src/drivers/ipmi/ocp/ipmi_ocp.c
@@ -12,6 +12,7 @@
 #include <device/device.h>
 #include <device/pnp.h>
 #include <drivers/ipmi/ipmi_kcs.h>
+#include <drivers/ocp/dmi/ocp_dmi.h>
 #include <intelblocks/cpulib.h>
 #include <string.h>
 #include <types.h>
@@ -115,6 +116,30 @@ static void ipmi_set_processor_information(struct device *dev)
 		printk(BIOS_ERR, "IPMI BMC set param 2 processor info failed\n");
 }
 
+static enum cb_err ipmi_set_ppin(struct device *dev)
+{
+	int ret;
+	struct ipmi_rsp rsp;
+	struct ppin_req req = {0};
+
+	req.cpu0_lo = xeon_sp_ppin[0].lo;
+	req.cpu0_hi = xeon_sp_ppin[0].hi;
+	if (CONFIG_MAX_SOCKET > 1) {
+		req.cpu1_lo = xeon_sp_ppin[1].lo;
+		req.cpu1_hi = xeon_sp_ppin[1].hi;
+	}
+	ret = ipmi_kcs_message(dev->path.pnp.port, IPMI_NETFN_OEM, 0x0, IPMI_OEM_SET_PPIN,
+		(const unsigned char *) &req, sizeof(req), (unsigned char *) &rsp, sizeof(rsp));
+
+	if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
+		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n",
+			__func__, ret, rsp.completion_code);
+			return CB_ERR;
+	}
+	printk(BIOS_DEBUG, "IPMI: %s command success\n", __func__);
+	return CB_SUCCESS;
+}
+
 static void ipmi_ocp_init(struct device *dev)
 {
 	/* Add OCP specific IPMI command */
@@ -126,6 +151,8 @@ static void ipmi_ocp_final(struct device *dev)
 
 	/* Send processor information */
 	ipmi_set_processor_information(dev);
+	if (CONFIG(OCP_DMI))
+		ipmi_set_ppin(dev);
 }
 
 static void ipmi_set_resources(struct device *dev)
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp.h b/src/drivers/ipmi/ocp/ipmi_ocp.h
index 96b0086298..0c9f452db5 100644
--- a/src/drivers/ipmi/ocp/ipmi_ocp.h
+++ b/src/drivers/ipmi/ocp/ipmi_ocp.h
@@ -7,6 +7,12 @@
 #include <cpu/x86/name.h>
 #include "drivers/ipmi/ipmi_kcs.h"
 
+#define IPMI_NETFN_OEM				0x30
+#define  IPMI_OEM_SET_PPIN			0x77
+#define  IPMI_BMC_SET_POST_START		0x73
+#define  IPMI_OEM_SET_BIOS_BOOT_ORDER		0x52
+#define  IPMI_OEM_GET_BIOS_BOOT_ORDER		0x53
+
 #define IPMI_NETFN_OEM_COMMON			0x36
 #define  IPMI_BMC_SET_PROCESSOR_INFORMATION     0x10
 #define  IPMI_BMC_GET_PROCESSOR_INFORMATION     0x11
@@ -14,6 +20,12 @@
 #define MSR_CORE_THREAD_COUNT	0x35
 #define MSR_PLATFORM_INFO	0xce
 
+#define CMOS_BIT  (1 << 1)
+#define VALID_BIT (1 << 7)
+#define CLEAR_CMOS_AND_VALID_BIT(x) ((x) &= ~(CMOS_BIT | VALID_BIT))
+#define SET_CMOS_AND_VALID_BIT(x)   ((x) |= (CMOS_BIT | VALID_BIT))
+#define IS_CMOS_AND_VALID_BIT(x)    ((x)&CMOS_BIT && (x)&VALID_BIT)
+
 struct ipmi_processor_info_req {
 	uint8_t manufacturer_id[3];
 	uint8_t index;
@@ -33,4 +45,22 @@ struct ipmi_processor_info_param2_req {
 	char revision[2];
 } __packed;
 
+struct ppin_req {
+	uint32_t cpu0_lo;
+	uint32_t cpu0_hi;
+	uint32_t cpu1_lo;
+	uint32_t cpu1_hi;
+} __packed;
+
+struct boot_order {
+	uint8_t boot_mode;
+	uint8_t boot_dev0;
+	uint8_t boot_dev1;
+	uint8_t boot_dev2;
+	uint8_t boot_dev3;
+	uint8_t boot_dev4;
+} __packed;
+
+enum cb_err ipmi_set_post_start(const int port);
+enum cb_err ipmi_set_cmos_clear(void);
 #endif
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp_romstage.c b/src/drivers/ipmi/ocp/ipmi_ocp_romstage.c
new file mode 100644
index 0000000000..8e43d8d159
--- /dev/null
+++ b/src/drivers/ipmi/ocp/ipmi_ocp_romstage.c
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <console/console.h>
+#include <drivers/ipmi/ipmi_kcs.h>
+
+#include "ipmi_ocp.h"
+
+enum cb_err ipmi_set_post_start(const int port)
+{
+	int ret;
+	struct ipmi_rsp rsp;
+
+	ret = ipmi_kcs_message(port, IPMI_NETFN_OEM, 0x0,
+				 IPMI_BMC_SET_POST_START, NULL, 0, (u8 *) &rsp,
+				 sizeof(rsp));
+
+	if (ret < sizeof(struct ipmi_rsp) || rsp.completion_code) {
+		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d rsp=0x%x)\n",
+		       __func__, ret, rsp.completion_code);
+		return CB_ERR;
+	}
+	if (ret != sizeof(rsp)) {
+		printk(BIOS_ERR, "IPMI: %s response truncated\n", __func__);
+		return CB_ERR;
+	}
+
+	printk(BIOS_DEBUG, "IPMI BMC POST is started\n");
+	return CB_SUCCESS;
+}
+
+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;
+}