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