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303 lines
7.8 KiB
303 lines
7.8 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (C) 2015, Bin Meng <[email protected]> |
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* |
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* Adapted from coreboot src/arch/x86/smbios.c |
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*/ |
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#include <common.h> |
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#include <smbios.h> |
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#include <tables_csum.h> |
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#include <version.h> |
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#ifdef CONFIG_CPU |
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#include <cpu.h> |
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#include <dm.h> |
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#include <dm/uclass-internal.h> |
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#endif |
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/** |
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* smbios_add_string() - add a string to the string area |
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* |
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* This adds a string to the string area which is appended directly after |
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* the formatted portion of an SMBIOS structure. |
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* |
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* @start: string area start address |
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* @str: string to add |
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* @return: string number in the string area |
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*/ |
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static int smbios_add_string(char *start, const char *str) |
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{ |
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int i = 1; |
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char *p = start; |
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for (;;) { |
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if (!*p) { |
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strcpy(p, str); |
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p += strlen(str); |
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*p++ = '\0'; |
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*p++ = '\0'; |
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return i; |
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} |
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if (!strcmp(p, str)) |
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return i; |
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p += strlen(p) + 1; |
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i++; |
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} |
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} |
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/** |
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* smbios_string_table_len() - compute the string area size |
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* |
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* This computes the size of the string area including the string terminator. |
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* |
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* @start: string area start address |
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* @return: string area size |
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*/ |
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static int smbios_string_table_len(char *start) |
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{ |
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char *p = start; |
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int i, len = 0; |
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while (*p) { |
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i = strlen(p) + 1; |
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p += i; |
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len += i; |
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} |
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return len + 1; |
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} |
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static int smbios_write_type0(ulong *current, int handle) |
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{ |
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struct smbios_type0 *t = (struct smbios_type0 *)*current; |
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int len = sizeof(struct smbios_type0); |
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memset(t, 0, sizeof(struct smbios_type0)); |
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fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle); |
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t->vendor = smbios_add_string(t->eos, "U-Boot"); |
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t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION); |
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t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE); |
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#ifdef CONFIG_ROM_SIZE |
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t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1; |
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#endif |
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t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED | |
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BIOS_CHARACTERISTICS_SELECTABLE_BOOT | |
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BIOS_CHARACTERISTICS_UPGRADEABLE; |
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#ifdef CONFIG_GENERATE_ACPI_TABLE |
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t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI; |
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#endif |
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#ifdef CONFIG_EFI_LOADER |
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t->bios_characteristics_ext1 |= BIOS_CHARACTERISTICS_EXT1_UEFI; |
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#endif |
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t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET; |
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t->bios_major_release = 0xff; |
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t->bios_minor_release = 0xff; |
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t->ec_major_release = 0xff; |
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t->ec_minor_release = 0xff; |
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len = t->length + smbios_string_table_len(t->eos); |
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*current += len; |
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return len; |
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} |
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static int smbios_write_type1(ulong *current, int handle) |
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{ |
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struct smbios_type1 *t = (struct smbios_type1 *)*current; |
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int len = sizeof(struct smbios_type1); |
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char *serial_str = env_get("serial#"); |
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memset(t, 0, sizeof(struct smbios_type1)); |
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fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle); |
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t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); |
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t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); |
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if (serial_str) { |
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strncpy((char *)t->uuid, serial_str, sizeof(t->uuid)); |
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t->serial_number = smbios_add_string(t->eos, serial_str); |
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} |
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len = t->length + smbios_string_table_len(t->eos); |
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*current += len; |
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return len; |
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} |
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static int smbios_write_type2(ulong *current, int handle) |
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{ |
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struct smbios_type2 *t = (struct smbios_type2 *)*current; |
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int len = sizeof(struct smbios_type2); |
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memset(t, 0, sizeof(struct smbios_type2)); |
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fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle); |
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t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); |
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t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); |
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t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING; |
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t->board_type = SMBIOS_BOARD_MOTHERBOARD; |
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len = t->length + smbios_string_table_len(t->eos); |
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*current += len; |
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return len; |
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} |
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static int smbios_write_type3(ulong *current, int handle) |
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{ |
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struct smbios_type3 *t = (struct smbios_type3 *)*current; |
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int len = sizeof(struct smbios_type3); |
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memset(t, 0, sizeof(struct smbios_type3)); |
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fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle); |
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t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); |
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t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP; |
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t->bootup_state = SMBIOS_STATE_SAFE; |
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t->power_supply_state = SMBIOS_STATE_SAFE; |
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t->thermal_state = SMBIOS_STATE_SAFE; |
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t->security_status = SMBIOS_SECURITY_NONE; |
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len = t->length + smbios_string_table_len(t->eos); |
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*current += len; |
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return len; |
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} |
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static void smbios_write_type4_dm(struct smbios_type4 *t) |
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{ |
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u16 processor_family = SMBIOS_PROCESSOR_FAMILY_UNKNOWN; |
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const char *vendor = "Unknown"; |
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const char *name = "Unknown"; |
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#ifdef CONFIG_CPU |
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char processor_name[49]; |
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char vendor_name[49]; |
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struct udevice *dev = NULL; |
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uclass_find_first_device(UCLASS_CPU, &dev); |
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if (dev) { |
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struct cpu_platdata *plat = dev_get_parent_platdata(dev); |
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if (plat->family) |
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processor_family = plat->family; |
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t->processor_id[0] = plat->id[0]; |
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t->processor_id[1] = plat->id[1]; |
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if (!cpu_get_vendor(dev, vendor_name, sizeof(vendor_name))) |
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vendor = vendor_name; |
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if (!cpu_get_desc(dev, processor_name, sizeof(processor_name))) |
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name = processor_name; |
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} |
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#endif |
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t->processor_family = processor_family; |
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t->processor_manufacturer = smbios_add_string(t->eos, vendor); |
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t->processor_version = smbios_add_string(t->eos, name); |
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} |
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static int smbios_write_type4(ulong *current, int handle) |
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{ |
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struct smbios_type4 *t = (struct smbios_type4 *)*current; |
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int len = sizeof(struct smbios_type4); |
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memset(t, 0, sizeof(struct smbios_type4)); |
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fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle); |
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t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL; |
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smbios_write_type4_dm(t); |
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t->status = SMBIOS_PROCESSOR_STATUS_ENABLED; |
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t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE; |
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t->l1_cache_handle = 0xffff; |
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t->l2_cache_handle = 0xffff; |
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t->l3_cache_handle = 0xffff; |
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t->processor_family2 = t->processor_family; |
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len = t->length + smbios_string_table_len(t->eos); |
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*current += len; |
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return len; |
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} |
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static int smbios_write_type32(ulong *current, int handle) |
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{ |
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struct smbios_type32 *t = (struct smbios_type32 *)*current; |
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int len = sizeof(struct smbios_type32); |
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memset(t, 0, sizeof(struct smbios_type32)); |
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fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle); |
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*current += len; |
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return len; |
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} |
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static int smbios_write_type127(ulong *current, int handle) |
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{ |
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struct smbios_type127 *t = (struct smbios_type127 *)*current; |
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int len = sizeof(struct smbios_type127); |
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memset(t, 0, sizeof(struct smbios_type127)); |
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fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle); |
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*current += len; |
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return len; |
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} |
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static smbios_write_type smbios_write_funcs[] = { |
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smbios_write_type0, |
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smbios_write_type1, |
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smbios_write_type2, |
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smbios_write_type3, |
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smbios_write_type4, |
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smbios_write_type32, |
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smbios_write_type127 |
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}; |
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ulong write_smbios_table(ulong addr) |
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{ |
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struct smbios_entry *se; |
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ulong tables; |
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int len = 0; |
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int max_struct_size = 0; |
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int handle = 0; |
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char *istart; |
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int isize; |
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int i; |
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/* 16 byte align the table address */ |
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addr = ALIGN(addr, 16); |
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se = (struct smbios_entry *)(uintptr_t)addr; |
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memset(se, 0, sizeof(struct smbios_entry)); |
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addr += sizeof(struct smbios_entry); |
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addr = ALIGN(addr, 16); |
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tables = addr; |
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/* populate minimum required tables */ |
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for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) { |
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int tmp = smbios_write_funcs[i]((ulong *)&addr, handle++); |
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max_struct_size = max(max_struct_size, tmp); |
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len += tmp; |
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} |
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memcpy(se->anchor, "_SM_", 4); |
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se->length = sizeof(struct smbios_entry); |
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se->major_ver = SMBIOS_MAJOR_VER; |
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se->minor_ver = SMBIOS_MINOR_VER; |
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se->max_struct_size = max_struct_size; |
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memcpy(se->intermediate_anchor, "_DMI_", 5); |
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se->struct_table_length = len; |
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se->struct_table_address = tables; |
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se->struct_count = handle; |
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/* calculate checksums */ |
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istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET; |
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isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET; |
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se->intermediate_checksum = table_compute_checksum(istart, isize); |
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se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry)); |
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return addr; |
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}
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