5 This file contains information about the cmi board configuration.
6 Please see cmi_mpc5xx_config for further details. The cmi board is
7 a customer specific board but should work with small modifications
8 on every board which has a MPC5xx and either a 28F128J3A,
9 28F320J3A or 28F640J3A Intel flash mounted.
16 * Intel flash 28F640J3A
23 In contrast to the usual boot sequence used in U-Boot, on the
24 cmi board we don't boot from the external flash directly.
25 Because of we use a 16-bit flash and don't sample a RCW
26 from the data bus to set the startup buswidth to 16-bit.
27 Unfortunatly the default width, sampled from the default RCW
28 is 32-bit. For this reason we burn the proper RCW into the
29 internal flash shadow location and boot after power-on or
30 reset from the internal flash and then branch to 0x02000100
31 where the U-Boot reset vector handler is located.
36 Memory Map after relocation:
38 0x0000 0000 CFG_SDRAM_BASE
43 0x0100 0000 CFG_IMMR (Internal memory map base adress)
48 0x0200 0000 CFG_FLASH_BASE
57 0x0200 0000 Block 0 and 1 contain U-Boot except
61 0x0202 0000 Block 2 contains environment (.ppcenv)
65 See README file for futher information about U-Boot relocation
71 * U-Boot commands: go, loads, loadb, all memory features, printenv,
72 setenv, saveenv, protect, erase, fli, bdi, mtest, reset, version,
73 coninfo, help (see configuration file for available commands)
75 * Blinking led to indicate boot process
77 Added or Changed Files:
78 =======================
80 u-boot-0.2.0/board/cmi/*
81 u-boot-0.2.0/include/configs/cmi_mpc5xx.h