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doc: english polishing for README.sata 

according to gvb's suggestion, polishing for the doc.

Signed-off-by: Jerry Van Baren <gerald.vanbaren@ge.com>
Signed-off-by: Dave Liu <daveliu@freescale.com>
This commit is contained in:
Dave Liu 2008-03-27 18:49:56 +08:00 committed by Wolfgang Denk
parent 3e3f766a52
commit e8f7ba404f
1 changed files with 12 additions and 12 deletions
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doc/README.sata
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@ -1,11 +1,11 @@
1. SATA usage in U-boot 1. SATA usage in U-boot
Two ways to operate the hard disk There are two ways to operate the hard disk
* Raw read/write block from/to SATA hard disk; * Read/write raw blocks from/to SATA hard disk
* ext2load read file from ext2 filesytem in hard disk * ext2load to read a file from ext2 file system
1.0 How to know the information of SATA hard disk? 1.0 How to read the SATA hard disk's information?
=> sata info => sata info
@ -14,11 +14,12 @@ SATA device 0: Model: ST3320620AS Firm: 3.AAD Ser#: 4QF01ZTN
Supports 48-bit addressing Supports 48-bit addressing
Capacity: 305245.3 MB = 298.0 GB (625142448 x 512) Capacity: 305245.3 MB = 298.0 GB (625142448 x 512)
1.1 How to save the kernel, filesystem, dtb to SATA hard disk with raw? 1.1 How to raw write the kernel, file system, dtb to a SATA hard disk?
Notes: 0x1000 sectors = 2 MBytes Notes: Hard disk sectors are normally 512 bytes, so
0x1000 sectors = 2 MBytes
wirte kernel write kernel
=> tftp 40000 /tftpboot/uImage.837x => tftp 40000 /tftpboot/uImage.837x
=> sata write 40000 0 2000 => sata write 40000 0 2000
@ -30,7 +31,7 @@ SATA device 0: Model: ST3320620AS Firm: 3.AAD Ser#: 4QF01ZTN
=> tftp 40000 /tftpboot/mpc837xemds.dtb => tftp 40000 /tftpboot/mpc837xemds.dtb
=> sata write 40000 a000 1000 => sata write 40000 a000 1000
1.2 How to read the kernel, filesystem, dtb from SATA hard disk with raw? 1.2 How to raw read the kernel, file system, dtb from a SATA hard disk?
load kernel load kernel
=> sata read 200000 0 2000 => sata read 200000 0 2000
@ -44,11 +45,10 @@ SATA device 0: Model: ST3320620AS Firm: 3.AAD Ser#: 4QF01ZTN
boot boot
=> bootm 200000 1000000 2000000 => bootm 200000 1000000 2000000
1.3 How to load image from ext2 filesystem in U-boot? 1.3 How to load an image from an ext2 file system in U-boot?
U-boot doesn't support ext2 write to hard disk, so U-boot doesn't support writing to an ext2 file system, so the
you have to write the image to hard disk under Linux env, files must be written by other means (e.g. linux).
before you load image from ext2 filesystem.
=> ext2ls sata 0:1 / => ext2ls sata 0:1 /
<DIR> 4096 . <DIR> 4096 .