| Freescale MPC8313ERDB Board |
| ----------------------------------------- |
| |
| 1. Board Switches and Jumpers |
| |
| SW3 is used to set CFG_RESET_SOURCE. |
| |
| To boot the image at 0xFE000000 in NOR flash, use these DIP |
| switche settings for SW3 SW4: |
| |
| +------+ +------+ |
| | | | **** | |
| | **** | | | |
| +------+ ON +------+ ON |
| 4321 4321 |
| (where the '*' indicates the position of the tab of the switch.) |
| |
| 2. Memory Map |
| The memory map looks like this: |
| |
| 0x0000_0000 0x07ff_ffff DDR 128M |
| 0x8000_0000 0x8fff_ffff PCI MEM 256M |
| 0x9000_0000 0x9fff_ffff PCI_MMIO 256M |
| 0xe000_0000 0xe00f_ffff IMMR 1M |
| 0xe200_0000 0xe20f_ffff PCI IO 16M |
| 0xe280_0000 0xe280_7fff NAND FLASH (CS1) 32K |
| 0xf000_0000 0xf001_ffff VSC7385 (CS2) 128K |
| 0xfa00_0000 0xfa00_7fff Board Status/ 32K |
| LED Control (CS3) |
| 0xfe00_0000 0xfe7f_ffff NOR FLASH (CS0) 8M |
| |
| 3. Definitions |
| |
| 3.1 Explanation of NEW definitions in: |
| |
| include/configs/MPC8313ERDB.h |
| |
| CONFIG_MPC83xx MPC83xx family |
| CONFIG_MPC831x MPC831x specific |
| CONFIG_MPC8313ERDB MPC8313ERDB board specific |
| |
| 4. Compilation |
| |
| Assuming you're using BASH (or similar) as your shell: |
| |
| export CROSS_COMPILE=your-cross-compiler-prefix- |
| make distclean |
| make MPC8313ERDB_33_config |
| (or make MPC8313ERDB_66_config, depending on the speed of |
| the oscillator on your board) |
| make |
| |
| 5. Downloading and Flashing Images |
| |
| 5.1 Reflash U-boot Image using U-boot |
| |
| =>run tftpflash |
| |
| You may want to try |
| =>tftpboot $loadaddr $uboot |
| first, to make sure that the TFTP load will succeed before it |
| goes ahead and wipes out your current firmware. And of course, |
| have an alternate means of programming the flash available |
| if the new u-boot doesn't boot. |
| |
| 5.2 Downloading and Booting Linux Kernel |
| |
| Ensure that all networking-related environment variables are set |
| properly (including ipaddr, serverip, gatewayip (if needed), |
| netmask, ethaddr, eth1addr, rootpath (if using NFS root), |
| fdtfile, and bootfile). |
| |
| Then, do one of the following, depending on whether you |
| want an NFS root or a ramdisk root: |
| |
| =>run nfsboot |
| or |
| =>run ramboot |
| |
| 6 Notes |
| |
| Booting from NAND flash is not yet supported. |
| The console baudrate for MPC8313ERDB is 115200bps. |