mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 23:24:38 +00:00
68 lines
1.5 KiB
Text
68 lines
1.5 KiB
Text
1. SATA usage in U-boot
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Two ways to operate the hard disk
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* Raw read/write block from/to SATA hard disk;
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* ext2load read file from ext2 filesytem in hard disk
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1.0 How to know the information of SATA hard disk?
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=> sata info
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SATA device 0: Model: ST3320620AS Firm: 3.AAD Ser#: 4QF01ZTN
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Type: Hard Disk
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Supports 48-bit addressing
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Capacity: 305245.3 MB = 298.0 GB (625142448 x 512)
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1.1 How to save the kernel, filesystem, dtb to SATA hard disk with raw?
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Notes: 0x1000 sectors = 2 MBytes
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wirte kernel
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=> tftp 40000 /tftpboot/uImage.837x
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=> sata write 40000 0 2000
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write ramdisk
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=> tftp 40000 /tftpboot/ramdisk.837x
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=> sata write 40000 2000 8000
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write dtb
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=> tftp 40000 /tftpboot/mpc837xemds.dtb
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=> sata write 40000 a000 1000
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1.2 How to read the kernel, filesystem, dtb from SATA hard disk with raw?
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load kernel
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=> sata read 200000 0 2000
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load ramdisk
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=> sata read 1000000 2000 8000
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load dtb
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=> sata read 2000000 a000 1000
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boot
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=> bootm 200000 1000000 2000000
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1.3 How to load image from ext2 filesystem in U-boot?
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U-boot doesn't support ext2 write to hard disk, so
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you have to write the image to hard disk under Linux env,
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before you load image from ext2 filesystem.
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=> ext2ls sata 0:1 /
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<DIR> 4096 .
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<DIR> 4096 ..
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<DIR> 16384 lost+found
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1352023 uImage.837x
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3646377 ramdisk.837x
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12288 mpc837xemds.dtb
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12 hello.txt
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=> ext2load sata 0:1 200000 /uImage.837x
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=> ext2load sata 0:1 1000000 /ramdisk.837x
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=> ext2load sata 0:1 2000000 /mpc837xemds.dtb
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=> bootm 200000 1000000 2000000
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