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Dave Liubede87f2008-03-26 22:54:44 +080011. SATA usage in U-boot
2
Dave Liue8f7ba42008-03-27 18:49:56 +08003 There are two ways to operate the hard disk
Dave Liubede87f2008-03-26 22:54:44 +08004
Dave Liue8f7ba42008-03-27 18:49:56 +08005 * Read/write raw blocks from/to SATA hard disk
6 * ext2load to read a file from ext2 file system
Dave Liubede87f2008-03-26 22:54:44 +08007
Dave Liue8f7ba42008-03-27 18:49:56 +080081.0 How to read the SATA hard disk's information?
Dave Liubede87f2008-03-26 22:54:44 +08009
10 => sata info
11
Wolfgang Denkd049cc72008-03-27 00:03:57 +010012SATA device 0: Model: ST3320620AS Firm: 3.AAD Ser#: 4QF01ZTN
13 Type: Hard Disk
14 Supports 48-bit addressing
15 Capacity: 305245.3 MB = 298.0 GB (625142448 x 512)
Dave Liubede87f2008-03-26 22:54:44 +080016
Dave Liue8f7ba42008-03-27 18:49:56 +0800171.1 How to raw write the kernel, file system, dtb to a SATA hard disk?
Dave Liubede87f2008-03-26 22:54:44 +080018
Dave Liue8f7ba42008-03-27 18:49:56 +080019 Notes: Hard disk sectors are normally 512 bytes, so
20 0x1000 sectors = 2 MBytes
Dave Liubede87f2008-03-26 22:54:44 +080021
Dave Liue8f7ba42008-03-27 18:49:56 +080022 write kernel
Dave Liubede87f2008-03-26 22:54:44 +080023 => tftp 40000 /tftpboot/uImage.837x
24 => sata write 40000 0 2000
25
26 write ramdisk
27 => tftp 40000 /tftpboot/ramdisk.837x
28 => sata write 40000 2000 8000
29
30 write dtb
31 => tftp 40000 /tftpboot/mpc837xemds.dtb
32 => sata write 40000 a000 1000
33
Dave Liue8f7ba42008-03-27 18:49:56 +0800341.2 How to raw read the kernel, file system, dtb from a SATA hard disk?
Dave Liubede87f2008-03-26 22:54:44 +080035
36 load kernel
37 => sata read 200000 0 2000
38
39 load ramdisk
40 => sata read 1000000 2000 8000
41
42 load dtb
43 => sata read 2000000 a000 1000
44
45 boot
46 => bootm 200000 1000000 2000000
47
Dave Liue8f7ba42008-03-27 18:49:56 +0800481.3 How to load an image from an ext2 file system in U-boot?
Dave Liubede87f2008-03-26 22:54:44 +080049
Dave Liue8f7ba42008-03-27 18:49:56 +080050 U-boot doesn't support writing to an ext2 file system, so the
51 files must be written by other means (e.g. linux).
Dave Liubede87f2008-03-26 22:54:44 +080052
53 => ext2ls sata 0:1 /
Wolfgang Denkd049cc72008-03-27 00:03:57 +010054 <DIR> 4096 .
55 <DIR> 4096 ..
56 <DIR> 16384 lost+found
57 1352023 uImage.837x
58 3646377 ramdisk.837x
59 12288 mpc837xemds.dtb
60 12 hello.txt
Dave Liubede87f2008-03-26 22:54:44 +080061
62 => ext2load sata 0:1 200000 /uImage.837x
63
64 => ext2load sata 0:1 1000000 /ramdisk.837x
65
66 => ext2load sata 0:1 2000000 /mpc837xemds.dtb
67
68 => bootm 200000 1000000 2000000