Merge with /home/wd/git/u-boot/custodian/u-boot-ppc4xx

MAKEALL

Makefile

board/amcc/bamboo/Makefile

board/amcc/bamboo/bamboo.c

board/amcc/bamboo/config.mk

board/amcc/bamboo/flash.c

board/amcc/bamboo/init.S

board/amcc/bamboo/u-boot-nand.lds

board/amcc/sequoia/sdram.c

board/amcc/sequoia/sequoia.c

cpu/ppc4xx/44x_spd_ddr.c

cpu/ppc4xx/44x_spd_ddr2.c

cpu/ppc4xx/cpu.c

cpu/ppc4xx/ndfc.c

cpu/ppc4xx/start.S

drivers/nand/nand_ecc.c

include/asm-ppc/io.h

include/configs/bamboo.h

include/configs/luan.h

include/configs/sequoia.h