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maoxiaochuan
a8e33e1ce5
1.drivers/mmc:ls_mmc:Enhance compatibiltiy 2.mmc:support HS200 3.support boot abi2.0 kernel(linux 6.9 have be tested) 4.update set_env.sh 5.some bugs fix
138 lines
3.1 KiB
C
138 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* EFI application boot time services
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*
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* Copyright (C) 2020 Loongson Technology Corporation Limited
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*/
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#include <common.h>
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#include <efi_api.h>
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#include <efi_loader.h>
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#include <malloc.h>
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#include <u-boot/crc.h>
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#define FW_VERSION 0x1
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#define FW_PATCHLEVEL 0x0
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enum efi_table_id {
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FDT_TABLE_ID = 0,
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MAX_EFI_TABLES,
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};
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// 给16个efi table（不够可以加） 目前就 FDT SMBIOS ACPI
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struct efi_configuration_table efi_tables[16];
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static struct efi_boot_services efi_boot_services = {
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.hdr = {
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.signature = EFI_BOOT_SERVICES_SIGNATURE,
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.revision = EFI_SPECIFICATION_VERSION,
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.headersize = sizeof(struct efi_boot_services),
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}
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};
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struct efi_runtime_services efi_runtime_services = {
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.hdr = {
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.signature = EFI_RUNTIME_SERVICES_SIGNATURE,
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.revision = EFI_SPECIFICATION_VERSION,
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.headersize = sizeof(struct efi_runtime_services),
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}
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};
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static u16 firmware_vendor[] = L"LoongSon";
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/*
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* 由于 EFI 在 uboot 里面只有 x86 做了完善
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* 所以 这些 efi 的 table 由此处自行实现
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* 然后由于 tables 这个变量是需要手动赋值的
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* 以前的 NULL 是会导致写入崩溃的
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* 所以自行创建 efi_tables
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*/
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struct efi_system_table systab = {
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.hdr = {
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.signature = EFI_SYSTEM_TABLE_SIGNATURE,
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.revision = EFI_SPECIFICATION_VERSION,
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.headersize = sizeof(struct efi_system_table),
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},
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.fw_vendor = firmware_vendor,
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.fw_revision = FW_VERSION << 16 | FW_PATCHLEVEL << 8,
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.runtime = 0,
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.nr_tables = 0,
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.tables = efi_tables,
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};
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/**
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* efi_crc32() - Update crc32 in table header
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*
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* @table: EFI table
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*/
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void efi_crc32(struct efi_table_hdr *table)
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{
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table->crc32 = 0;
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table->crc32 = crc32(0, (const unsigned char *)table, table->headersize);
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}
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/**
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* init_systab() - Initialize system table
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*
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* Return: status code
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*/
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efi_status_t efi_init_systab(void)
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{
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systab.boottime = &efi_boot_services;
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/* Set CRC32 field in table headers */
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efi_crc32(&systab.hdr);
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efi_crc32(&efi_runtime_services.hdr);
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efi_crc32(&efi_boot_services.hdr);
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return EFI_SUCCESS;
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}
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/**
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* efi_install_configuration_table() - adds, updates, or removes a
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* configuration table
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* @guid: GUID of the installed table
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* @table: table to be installed
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*
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* This function is used for internal calls. For the API implementation of the
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* InstallConfigurationTable service see efi_install_configuration_table_ext.
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*
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* Return: status code
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*/
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efi_status_t efi_install_configuration_table(const efi_guid_t *guid,
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void *table)
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{
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int i = 0;
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if (!guid)
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return EFI_INVALID_PARAMETER;
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/* Check for GUID override */
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for (i = 0; i < systab.nr_tables; i++) {
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if (!guidcmp(guid, &systab.tables[i].guid)) {
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if (table)
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systab.tables[i].table = table;
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goto out;
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}
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}
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if (!table)
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return EFI_NOT_FOUND;
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/* No override, check for overflow */
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if (i >= EFI_MAX_CONFIGURATION_TABLES)
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return EFI_OUT_OF_RESOURCES;
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/* Add a new entry */
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guidcpy(&systab.tables[i].guid, guid);
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systab.tables[i].table = table;
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systab.nr_tables = i + 1;
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out:
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/* systab.nr_tables may have changed. So we need to update the CRC32 */
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efi_crc32(&systab.hdr);
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return EFI_SUCCESS;
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}
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