| Dave Liu | bede87f | 2008-03-26 22:54:44 +0800 | [diff] [blame^] | 1 | 1. SATA usage in U-boot |
| 2 | |
| 3 | Two ways to operate the hard disk |
| 4 | |
| 5 | * Raw read/write block from/to SATA hard disk; |
| 6 | * ext2load read file from ext2 filesytem in hard disk |
| 7 | |
| 8 | 1.0 How to know the information of SATA hard disk? |
| 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 save the kernel, filesystem, dtb to SATA hard disk with raw? |
| 18 | |
| 19 | Notes: 0x1000 sectors = 2 MBytes |
| 20 | |
| 21 | wirte kernel |
| 22 | => tftp 40000 /tftpboot/uImage.837x |
| 23 | => sata write 40000 0 2000 |
| 24 | |
| 25 | write ramdisk |
| 26 | => tftp 40000 /tftpboot/ramdisk.837x |
| 27 | => sata write 40000 2000 8000 |
| 28 | |
| 29 | write dtb |
| 30 | => tftp 40000 /tftpboot/mpc837xemds.dtb |
| 31 | => sata write 40000 a000 1000 |
| 32 | |
| 33 | 1.2 How to read the kernel, filesystem, dtb from SATA hard disk with raw? |
| 34 | |
| 35 | load kernel |
| 36 | => sata read 200000 0 2000 |
| 37 | |
| 38 | load ramdisk |
| 39 | => sata read 1000000 2000 8000 |
| 40 | |
| 41 | load dtb |
| 42 | => sata read 2000000 a000 1000 |
| 43 | |
| 44 | boot |
| 45 | => bootm 200000 1000000 2000000 |
| 46 | |
| 47 | 1.3 How to load image from ext2 filesystem in U-boot? |
| 48 | |
| 49 | U-boot doesn't support ext2 write to hard disk, so |
| 50 | you have to write the image to hard disk under Linux env, |
| 51 | before you load image from ext2 filesystem. |
| 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 |