ARM: dts: rmobile: Add Renesas RPC HF/QSPI DT node to R8A77990

[u-boot] / lib / efi_loader / efi_file.c

diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c
index 2fc77cfb87400dac8d6e70b0f9524d4449ac7936..e6a15bcb523e7f42beff044fbca3ceb94f9cbd8a 100644 (file)
--- a/lib/efi_loader/efi_file.c
+++ b/lib/efi_loader/efi_file.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  EFI utils
  *
  *  Copyright (c) 2017 Rob Clark
- *
- *  SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
@@ -12,6 +11,9 @@
 #include <malloc.h>
 #include <fs.h>
 
+/* GUID for file system information */
+const efi_guid_t efi_file_system_info_guid = EFI_FILE_SYSTEM_INFO_GUID;
+
 struct file_system {
        struct efi_simple_file_system_protocol base;
        struct efi_device_path *dp;
@@ -472,6 +474,41 @@ static efi_status_t EFIAPI efi_file_getinfo(struct efi_file_handle *file,
                        info->attribute |= EFI_FILE_DIRECTORY;
 
                ascii2unicode((u16 *)info->file_name, filename);
+       } else if (!guidcmp(info_type, &efi_file_system_info_guid)) {
+               struct efi_file_system_info *info = buffer;
+               disk_partition_t part;
+               efi_uintn_t required_size;
+               int r;
+
+               if (fh->fs->part >= 1)
+                       r = part_get_info(fh->fs->desc, fh->fs->part, &part);
+               else
+                       r = part_get_info_whole_disk(fh->fs->desc, &part);
+               if (r < 0) {
+                       ret = EFI_DEVICE_ERROR;
+                       goto error;
+               }
+               required_size = sizeof(info) + 2 *
+                               (strlen((const char *)part.name) + 1);
+               if (*buffer_size < required_size) {
+                       *buffer_size = required_size;
+                       ret = EFI_BUFFER_TOO_SMALL;
+                       goto error;
+               }
+
+               memset(info, 0, required_size);
+
+               info->size = required_size;
+               info->read_only = true;
+               info->volume_size = part.size * part.blksz;
+               info->free_space = 0;
+               info->block_size = part.blksz;
+               /*
+                * TODO: The volume label is not available in U-Boot.
+                * Use the partition name as substitute.
+                */
+               ascii2unicode((u16 *)info->volume_label,
+                             (const char *)part.name);
        } else {
                ret = EFI_UNSUPPORTED;
        }