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- Freescale MPC8315ERDB Board
- -----------------------------------------
- 1. Board Switches and Jumpers
- S3 is used to set CONFIG_SYS_RESET_SOURCE.
- To boot the image at 0xFE000000 in NOR flash, use these DIP
- switch settings for S3 S4:
- +------+ +------+
- | | | **** |
- | **** | | |
- +------+ 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
- 0xe030_0000 0xe03f_ffff PCI IO 1M
- 0xe060_0000 0xe060_7fff NAND FLASH (CS1) 32K
- 0xfe00_0000 0xfe7f_ffff NOR FLASH (CS0) 8M
- 3. Definitions
- 3.1 Explanation of NEW definitions in:
- include/configs/MPC8315ERDB.h
- CONFIG_MPC83xx MPC83xx family
- CONFIG_MPC831x MPC831x specific
- CONFIG_MPC8315 MPC8315 specific
- CONFIG_MPC8315ERDB MPC8315ERDB board specific
- 4. Compilation
- Assuming you're using BASH (or similar) as your shell:
- export CROSS_COMPILE=your-cross-compiler-prefix-
- make distclean
- make MPC8315ERDB_config
- make all
- 5. Downloading and Flashing Images
- 5.1 Reflash U-boot Image using U-boot
- tftp 40000 u-boot.bin
- protect off all
- erase fe000000 fe1fffff
- cp.b 40000 fe000000 xxxx
- protect on all
- You have to supply the correct byte count with 'xxxx'
- from the TFTP result log.
- 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 MPC8315ERDB is 115200bps.
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