1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * BTRFS filesystem implementation for U-Boot
4 *
5 * 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
6 */
7
8 #include <common.h>
9 #include <compiler.h>
10 #include <fs_internal.h>
11
12 struct blk_desc *btrfs_blk_desc;
13 disk_partition_t *btrfs_part_info;
14
btrfs_devread(u64 address,int byte_len,void * buf)15 int btrfs_devread(u64 address, int byte_len, void *buf)
16 {
17 lbaint_t sector;
18 int byte_offset;
19
20 sector = address >> btrfs_blk_desc->log2blksz;
21 byte_offset = address % btrfs_blk_desc->blksz;
22
23 return fs_devread(btrfs_blk_desc, btrfs_part_info, sector, byte_offset,
24 byte_len, buf);
25 }
26