Hi Dave,
Proposed English polishing.
Best regards,
gvb
Dave Liu wrote:
> Signed-off-by: Dave Liu <[EMAIL PROTECTED]>
> ---
> doc/README.sata | 69
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 69 insertions(+), 0 deletions(-)
> create mode 100644 doc/README.sata
>
> diff --git a/doc/README.sata b/doc/README.sata
> new file mode 100644
> index 0000000..5cc69db
> --- /dev/null
> +++ b/doc/README.sata
> @@ -0,0 +1,69 @@
> +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 the SATA hard disk
> + * ext2load read file from ext2 filesytem in hard disk
* ext2load to read a file from an 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 device 0: Model: ST3320620AS Firm: 3.AAD Ser#: 4QF01ZTN
> + Type: Hard Disk
> + Supports 48-bit addressing
> + 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
s/wirte/write/
> + => tftp 40000 /tftpboot/uImage.837x
> + => sata write 40000 0 2000
> +
> + write ramdisk
> + => tftp 40000 /tftpboot/ramdisk.837x
> + => sata write 40000 2000 8000
> +
> + write dtb
> + => tftp 40000 /tftpboot/mpc837xemds.dtb
> + => 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, filesystem, dtb from a SATA hard disk?
> +
> + load kernel
> + => sata read 200000 0 2000
> +
> + load ramdisk
> + => sata read 1000000 2000 8000
> +
> + load dtb
> + => sata read 2000000 a000 1000
> +
> + boot
> + => 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
> + you have to write the image to hard disk under Linux env,
> + before you load image from ext2 filesystem.
U-boot doesn't support writing to an ext2 file system, so the
files must be written by other means (e.g. linux).
> +
> + => ext2ls sata 0:1 /
> + <DIR> 4096 .
> + <DIR> 4096 ..
> + <DIR> 16384 lost+found
> + 1352023 uImage.837x
> + 3646377 ramdisk.837x
> + 12288 mpc837xemds.dtb
> + 12 hello.txt
> +
> + => ext2load sata 0:1 200000 /uImage.837x
> +
> + => ext2load sata 0:1 1000000 /ramdisk.837x
> +
> + => ext2load sata 0:1 2000000 /mpc837xemds.dtb
> +
> + => bootm 200000 1000000 2000000
> +
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