drivers/ocp/dmi: Add OCP_DMI driver for populating SMBIOS from IPMI FRU data

It implements the SMBIOS IPMI FRU mapping table defined in
https://www.opencompute.org/documents/facebook-xeon-motherboard-v31
22.3 SMBIOS FRU mapping table.
Mainboard needs to configure the correct values for FRU_DEVICE_ID and BMC_KCS_BASE.

For type 11 string 1 to 6 are common and implemented in this driver, the
rest are project dependent and can be added in the mainboard code.

Tested on OCP Tioga Pass.

Change-Id: I08c958dfad83216cd12545760a19d205efc2515b
Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40308
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/drivers/ocp/dmi/ocp_dmi.h b/src/drivers/ocp/dmi/ocp_dmi.h
new file mode 100644
index 0000000000..ef0c740c98
--- /dev/null
+++ b/src/drivers/ocp/dmi/ocp_dmi.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef __OCP_DMI_H
+#define __OCP_DMI_H
+
+#include <cpu/x86/msr.h>
+#include <device/device.h>
+#include <smbios.h>
+
+#define TBF "To Be Filled By O.E.M."
+
+extern msr_t xeon_sp_ppin[];
+
+/* Override SMBIOS type 11 OEM string 1 to string 6 */
+void ocp_oem_smbios_strings(struct device *dev, struct smbios_type11 *t);
+
+/* This function allows adding the same repeated string to the table */
+int smbios_add_oem_string(u8 *start, const char *str);
+
+#endif