soc/intel/denverton_ns: Fill dimm info for SMBIOS table 17

Rework display_fsp_smbios_memory_info_hob (shared code).

Import code to convert memory HOB to dimm info for SMBIOS table 17
mostly copied from fsp1_1 mainboard_save_dimm_info.

Change-Id: Id5c4ceaf4e65359f72ec764f0914b5daa82f257e
Signed-off-by: Julien Viard de Galbert <jviarddegalbert@online.net>
Reviewed-on: https://review.coreboot.org/23851
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 135 insertions, 0 deletions

diff --git a/src/soc/intel/denverton_ns/hob_mem.c b/src/soc/intel/denverton_ns/hob_mem.c
new file mode 100644
index 0000000000..c70c22ad98
--- /dev/null
+++ b/src/soc/intel/denverton_ns/hob_mem.c
@@ -0,0 +1,135 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015-2016 Intel Corporation.
+ * Copyright (C) 2017-2018 Online SAS.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <cbmem.h>
+#include <console/console.h>
+#include <string.h>
+
+#include <soc/hob_mem.h>
+
+#include <smbios.h>
+#include <memory_info.h>
+#include <soc/ramstage.h>
+
+/* Save the DIMM information for SMBIOS table 17 */
+void soc_save_dimm_info(void)
+{
+	int channel;
+	const CHANNEL_INFO *channel_info;
+	int dimm;
+	const DIMM_INFO *dimm_info;
+	int dimm_max;
+	int index;
+	struct memory_info *mem_info;
+	const FSP_SMBIOS_MEMORY_INFO *memory_info_hob;
+
+	/* Get the memory info HOB */
+	memory_info_hob = soc_get_fsp_smbios_memory_info_hob();
+
+	if (memory_info_hob == NULL)
+		return;
+
+	/* Display the data in the FSP_SMBIOS_MEMORY_INFO HOB */
+	if (IS_ENABLED(CONFIG_DISPLAY_HOBS))
+		soc_display_fsp_smbios_memory_info_hob(memory_info_hob);
+
+	/*
+	 * Allocate CBMEM area for DIMM information used to populate SMBIOS
+	 * table 17
+	 */
+	mem_info = cbmem_add(CBMEM_ID_MEMINFO, sizeof(*mem_info));
+	printk(BIOS_DEBUG, "CBMEM entry for DIMM info: 0x%p\n", mem_info);
+	if (mem_info == NULL)
+		return;
+	memset(mem_info, 0, sizeof(*mem_info));
+
+	/* Describe the first N DIMMs in the system */
+	index = 0;
+	dimm_max = ARRAY_SIZE(mem_info->dimm);
+	for (channel = 0; channel < memory_info_hob->ChannelCount; channel++) {
+		if (index >= dimm_max)
+			break;
+		channel_info = &memory_info_hob->ChannelInfo[channel];
+		for (dimm = 0; dimm < channel_info->DimmCount; dimm++) {
+			if (index >= dimm_max)
+				break;
+			dimm_info = &channel_info->DimmInfo[dimm];
+
+			/* Populate the DIMM information */
+			if (!dimm_info->SizeInMb)
+				continue;
+
+			mem_info->dimm[index].dimm_size =
+				dimm_info->SizeInMb;
+			mem_info->dimm[index].ddr_type =
+				memory_info_hob->MemoryType;
+			mem_info->dimm[index].ddr_frequency =
+				memory_info_hob->MemoryFrequencyInMHz;
+			mem_info->dimm[index].channel_num =
+				channel_info->ChannelId;
+			mem_info->dimm[index].dimm_num =
+				dimm_info->DimmId;
+
+			strncpy((char *)
+				mem_info->dimm[index].module_part_number,
+				(char *)dimm_info->ModulePartNum, 18);
+			mem_info->dimm[index].mod_id =
+				dimm_info->MfgId;
+			switch (memory_info_hob->DataWidth) {
+			default:
+			case 8:
+				mem_info->dimm[index].bus_width =
+					MEMORY_BUS_WIDTH_8;
+				break;
+
+			case 16:
+				mem_info->dimm[index].bus_width =
+					MEMORY_BUS_WIDTH_16;
+				break;
+
+			case 32:
+				mem_info->dimm[index].bus_width =
+					MEMORY_BUS_WIDTH_32;
+				break;
+
+			case 64:
+				mem_info->dimm[index].bus_width =
+					MEMORY_BUS_WIDTH_64;
+				break;
+
+			case 128:
+				mem_info->dimm[index].bus_width =
+					MEMORY_BUS_WIDTH_128;
+				break;
+			}
+
+			/* Add any mainboard specific information */
+			mainboard_add_dimm_info(mem_info, channel, dimm, index);
+			index++;
+		}
+	}
+	mem_info->dimm_cnt = index;
+	printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt);
+}
+
+/* Add any mainboard specific information */
+__attribute__((weak)) void mainboard_add_dimm_info(struct memory_info *mem_info,
+						   int channel, int dimm,
+						   int index)
+{
+	printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__);
+}