| Scott Wood | 865b8ae | 2007-04-16 14:54:15 -0500 | [diff] [blame^] | 1 | Freescale MPC8313ERDB Board |
| 2 | ----------------------------------------- |
| 3 | |
| 4 | 1. Board Switches and Jumpers |
| 5 | |
| 6 | SW3 is used to set CFG_RESET_SOURCE. |
| 7 | |
| 8 | To boot the image at 0xFE000000 in NOR flash, use these DIP |
| 9 | switche settings for SW3 SW4: |
| 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 |
| 25 | 0xe200_0000 0xe20f_ffff PCI IO 16M |
| 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. |