projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 96b8a054 SW |
1 | Freescale MPC8313ERDB Board |
| 2 | ----------------------------------------- | |
| 3 | ||
| 4 | 1. Board Switches and Jumpers | |
| 5 | ||
| be5a7190 | 6 | S3 is used to set CFG_RESET_SOURCE. |
| 96b8a054 SW |
7 | |
| 8 | To boot the image at 0xFE000000 in NOR flash, use these DIP | |
| be5a7190 | 9 | switch settings for S3 S4: |
| 96b8a054 SW |
10 | |
| 11 | +------+ +------+ | |
| 12 | | | | **** | | |
| 13 | | **** | | | | |
| 14 | +------+ ON +------+ ON | |
| 15 | 4321 4321 | |
| 16 | (where the '*' indicates the position of the tab of the switch.) | |
| 17 | ||
| 18 | 2. Memory Map | |
| 19 | The memory map looks like this: | |
| 20 | ||
| 21 | 0x0000_0000 0x07ff_ffff DDR 128M | |
| 22 | 0x8000_0000 0x8fff_ffff PCI MEM 256M | |
| 23 | 0x9000_0000 0x9fff_ffff PCI_MMIO 256M | |
| 24 | 0xe000_0000 0xe00f_ffff IMMR 1M | |
| 53677ef1 | 25 | 0xe200_0000 0xe20f_ffff PCI IO 16M |
| 96b8a054 SW |
26 | 0xe280_0000 0xe280_7fff NAND FLASH (CS1) 32K |
| 27 | 0xf000_0000 0xf001_ffff VSC7385 (CS2) 128K | |
| 28 | 0xfa00_0000 0xfa00_7fff Board Status/ 32K | |
| 29 | LED Control (CS3) | |
| 30 | 0xfe00_0000 0xfe7f_ffff NOR FLASH (CS0) 8M | |
| 31 | ||
| 32 | 3. Definitions | |
| 33 | ||
| 34 | 3.1 Explanation of NEW definitions in: | |
| 35 | ||
| 36 | include/configs/MPC8313ERDB.h | |
| 37 | ||
| 38 | CONFIG_MPC83xx MPC83xx family | |
| 39 | CONFIG_MPC831x MPC831x specific | |
| 40 | CONFIG_MPC8313ERDB MPC8313ERDB board specific | |
| 41 | ||
| 42 | 4. Compilation | |
| 43 | ||
| 44 | Assuming you're using BASH (or similar) as your shell: | |
| 45 | ||
| 46 | export CROSS_COMPILE=your-cross-compiler-prefix- | |
| 47 | make distclean | |
| 48 | make MPC8313ERDB_33_config | |
| 49 | (or make MPC8313ERDB_66_config, depending on the speed of | |
| 50 | the oscillator on your board) | |
| 51 | make | |
| 52 | ||
| 53 | 5. Downloading and Flashing Images | |
| 54 | ||
| 55 | 5.1 Reflash U-boot Image using U-boot | |
| 56 | ||
| 57 | =>run tftpflash | |
| 58 | ||
| 59 | You may want to try | |
| 60 | =>tftpboot $loadaddr $uboot | |
| 61 | first, to make sure that the TFTP load will succeed before it | |
| 62 | goes ahead and wipes out your current firmware. And of course, | |
| 63 | have an alternate means of programming the flash available | |
| 64 | if the new u-boot doesn't boot. | |
| 65 | ||
| 66 | 5.2 Downloading and Booting Linux Kernel | |
| 67 | ||
| 68 | Ensure that all networking-related environment variables are set | |
| 69 | properly (including ipaddr, serverip, gatewayip (if needed), | |
| 70 | netmask, ethaddr, eth1addr, rootpath (if using NFS root), | |
| 71 | fdtfile, and bootfile). | |
| 72 | ||
| 73 | Then, do one of the following, depending on whether you | |
| 74 | want an NFS root or a ramdisk root: | |
| 75 | ||
| 76 | =>run nfsboot | |
| 77 | or | |
| 78 | =>run ramboot | |
| 79 | ||
| 80 | 6 Notes | |
| 81 | ||
| 82 | Booting from NAND flash is not yet supported. | |
| 83 | The console baudrate for MPC8313ERDB is 115200bps. |