11. SATA usage in U-Boot
2
3	There are two ways to operate the hard disk
4
5	* Read/write raw blocks from/to SATA hard disk
6	* ext2load to read a file from ext2 file system
7
81.0 How to read the SATA hard disk's information?
9
10	=> sata info
11
12SATA 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)
16
171.1 How to raw write the kernel, file system, dtb to a SATA hard disk?
18
19	Notes: Hard disk sectors are normally 512 bytes, so
20		0x1000 sectors = 2 MBytes
21
22	write kernel
23	=> 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
341.2 How to raw read the kernel, file system, dtb from a SATA hard disk?
35
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
481.3 How to load an image from an ext2 file system in U-Boot?
49
50	U-Boot doesn't support writing to an ext2 file system, so the
51	files must be written by other means (e.g. linux).
52
53	=> ext2ls sata 0:1 /
54	<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
61
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
69