1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (c) 2016-2018 Alexander Graf et al.
9 #include <efi_loader.h>
11 #define OBJ_LIST_NOT_INITIALIZED 1
13 static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
15 /* Initialize and populate EFI object list */
16 efi_status_t efi_init_obj_list(void)
18 efi_status_t ret = EFI_SUCCESS;
21 * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
22 * As this register may be overwritten by an EFI payload we save it here
23 * and restore it on every callback entered.
27 /* Initialize once only */
28 if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
29 return efi_obj_list_initialized;
31 /* Initialize system table */
32 ret = efi_initialize_system_table();
33 if (ret != EFI_SUCCESS)
36 /* Initialize root node */
37 ret = efi_root_node_register();
38 if (ret != EFI_SUCCESS)
41 /* Initialize EFI driver uclass */
42 ret = efi_driver_init();
43 if (ret != EFI_SUCCESS)
46 ret = efi_console_register();
47 if (ret != EFI_SUCCESS)
49 #ifdef CONFIG_PARTITIONS
50 ret = efi_disk_register();
51 if (ret != EFI_SUCCESS)
54 #if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO)
55 ret = efi_gop_register();
56 if (ret != EFI_SUCCESS)
60 ret = efi_net_register();
61 if (ret != EFI_SUCCESS)
64 #ifdef CONFIG_GENERATE_ACPI_TABLE
65 ret = efi_acpi_register();
66 if (ret != EFI_SUCCESS)
69 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
70 ret = efi_smbios_register();
71 if (ret != EFI_SUCCESS)
74 ret = efi_watchdog_register();
75 if (ret != EFI_SUCCESS)
78 /* Initialize EFI runtime services */
79 ret = efi_reset_system_init();
80 if (ret != EFI_SUCCESS)
84 efi_obj_list_initialized = ret;