[M] Change in coreboot[master]: drivers/ipmi/ocp: add functions to get board configuration

[Jonathan Zhang (Code Review)]

Jonathan Zhang has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/68779 )

Change subject: drivers/ipmi/ocp: add functions to get board configuration
......................................................................

drivers/ipmi/ocp: add functions to get board configuration

Add IPMI OEM command to get board configuration.
Add function to get blade index in the sled.

Signed-off-by: Jingle Hsu 
Signed-off-by: Jonathan Zhang

Change-Id: I85ec7ba68d580c13e368e7d656dba47ea043d33e
---
M src/drivers/ipmi/ocp/Makefile.inc
M src/drivers/ipmi/ocp/ipmi_ocp.h
M src/drivers/ipmi/ocp/ipmi_sel.c
3 files changed, 52 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/79/68779/1

diff --git a/src/drivers/ipmi/ocp/Makefile.inc b/src/drivers/ipmi/ocp/Makefile.inc
index fc56364..2b492e1 100644
--- a/src/drivers/ipmi/ocp/Makefile.inc
+++ b/src/drivers/ipmi/ocp/Makefile.inc
@@ -1,4 +1,4 @@
-ramstage-$(CONFIG_IPMI_OCP) += ipmi_ocp.c
+ramstage-$(CONFIG_IPMI_OCP) += ipmi_ocp.c ipmi_sel.c
 ifeq ($(CONFIG_IPMI_OCP),y)
 romstage-$(CONFIG_IPMI_KCS_ROMSTAGE) += ipmi_ocp_romstage.c
 smm-$(CONFIG_IPMI_BMC_SEL) += ipmi_sel.c
diff --git a/src/drivers/ipmi/ocp/ipmi_ocp.h b/src/drivers/ipmi/ocp/ipmi_ocp.h
index a51c53d..534ddea 100644
--- a/src/drivers/ipmi/ocp/ipmi_ocp.h
+++ b/src/drivers/ipmi/ocp/ipmi_ocp.h
@@ -11,6 +11,7 @@
 #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_OEM_GET_BOARD_ID			0x37

#define CMOS_BIT  (1 << 1)
 #define VALID_BIT (1 << 7)
@@ -175,4 +176,7 @@
    uint8_t prmry_id);
 void ipmi_send_sel_pcie_dev_fail(uint16_t sts_reg, uint16_t src_id, enum fail_type code);
 void ipmi_send_sel_iio_err(uint8_t iio_stack_num, uint8_t err_id);
+
+enum cb_err ipmi_get_board_config(const int port, struct ipmi_config_rsp *config);
+uint8_t get_blade_id(void);
 #endif
diff --git a/src/drivers/ipmi/ocp/ipmi_sel.c b/src/drivers/ipmi/ocp/ipmi_sel.c
index e75df24..74066ed 100644
--- a/src/drivers/ipmi/ocp/ipmi_sel.c
+++ b/src/drivers/ipmi/ocp/ipmi_sel.c
@@ -81,3 +81,35 @@
    printk(BIOS_DEBUG, "\terror_code = %x, src_id = %x\n", ubslp.type,
           ubslp.failure_details2);
 }
+
+enum cb_err ipmi_get_board_config(const int port, struct ipmi_config_rsp *config)
+{
+	int ret;
+	struct ipmi_oem_rsp {
+		struct ipmi_rsp resp;
+		struct ipmi_config_rsp data;
+	} __packed;
+
+	struct ipmi_oem_rsp rsp;
+
+	ret = ipmi_kcs_message(port, IPMI_NETFN_OEM, 0x0, IPMI_OEM_GET_BOARD_ID, NULL, 0,
+				(unsigned char *)&rsp, sizeof(rsp));
+	if (ret < sizeof(struct ipmi_rsp) || rsp.resp.completion_code) {
+		printk(BIOS_ERR, "IPMI: %s command failed (ret=%d resp=0x%x)\n",
+			__func__, ret, rsp.resp.completion_code);
+		return CB_ERR;
+	}
+	*config = rsp.data;
+	return CB_SUCCESS;
+}
+
+__weak uint8_t get_blade_id(void)
+{
+	struct ipmi_config_rsp rsp = {.slot_id = UINT8_MAX};
+
+	if (CONFIG(IPMI_KCS) && CONFIG_BMC_KCS_BASE) {
+		if (ipmi_get_board_config(CONFIG_BMC_KCS_BASE, &rsp) != CB_SUCCESS)
+			return UINT8_MAX;
+	}
+	return rsp.slot_id;
+}