doc/README.sata

   1 1. 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
   8 1.0 How to read the SATA hard disk's information?
   9
  10         => sata info
  11
  12 SATA 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
  17 1.1 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
  34 1.2 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
  48 1.3 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