mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 18:28:55 +00:00
27 lines
570 B
C
27 lines
570 B
C
|
/*
|
||
|
|
* BTRFS filesystem implementation for U-Boot
|
||
|
|
*
|
||
|
|
* 2017 Marek Behun, CZ.NIC, marek.behun@nic.cz
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <compiler.h>
|
||
|
|
#include <fs_internal.h>
|
||
|
|
|
||
|
|
struct blk_desc *btrfs_blk_desc;
|
||
|
|
disk_partition_t *btrfs_part_info;
|
||
|
|
|
||
|
|
int btrfs_devread(u64 address, int byte_len, void *buf)
|
||
|
|
{
|
||
|
|
lbaint_t sector;
|
||
|
|
int byte_offset;
|
||
|
|
|
||
|
|
sector = address >> btrfs_blk_desc->log2blksz;
|
||
|
|
byte_offset = address % btrfs_blk_desc->blksz;
|
||
|
|
|
||
|
|
return fs_devread(btrfs_blk_desc, btrfs_part_info, sector, byte_offset,
|
||
|
|
byte_len, buf);
|
||
|
|
}
|