| Freescale MPC8323ERDB Board | |
| ----------------------------------------- | |
| 1. Memory Map | |
| The memory map looks like this: | |
| 0x0000_0000 0x03ff_ffff DDR 64M | |
| 0x8000_0000 0x8fff_ffff PCI MEM 256M | |
| 0x9000_0000 0x9fff_ffff PCI_MMIO 256M | |
| 0xe000_0000 0xe00f_ffff IMMR 1M | |
| 0xd000_0000 0xd3ff_ffff PCI IO 64M | |
| 0xfe00_0000 0xfeff_ffff NOR FLASH (CS0) 16M | |
| 2. Compilation | |
| Assuming you're using BASH (or similar) as your shell: | |
| export CROSS_COMPILE=your-cross-compiler-prefix- | |
| make distclean | |
| make MPC8323ERDB_config | |
| make | |
| 3. Downloading and Flashing Images | |
| 3.1 Reflash U-boot Image using U-boot | |
| N.b, have an alternate means of programming | |
| the flash available if the new u-boot doesn't boot. | |
| First try a: | |
| tftpboot $loadaddr $uboot | |
| to make sure that the TFTP load will succeed before | |
| an erase goes ahead and wipes out your current firmware. | |
| Then do a: | |
| run tftpflash | |
| which is a shorter version of the manual sequence: | |
| tftp $loadaddr u-boot.bin | |
| protect off fe000000 +$filesize | |
| erase fe000000 +$filesize | |
| cp.b $loadaddr fe000000 $filesize | |
| To keep your old u-boot's environment variables, do a: | |
| saveenv | |
| prior to resetting the board. | |
| 3.2 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 | |
| 4 Notes | |
| The console baudrate for MPC8323ERDB is 115200bps. |