kirkwood: add support for Linksys EA4500
Support is added only for kernel 3.14 - do not show it until
the switch is made.
Following uboot env changes are needed to make it work on stock uboot:
---
setenv owrt_bootargs_root ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs rw
setenv owrt_mtdparts mtdparts=orion_nand:0x80000@0x0(uboot),0x20000@0x80000(uboot_env),0x200000@0x200000(kernel),-@0x400000(root)
setenv owrt_boot nand read.e \${loadaddr} 0x200000 0x200000 \; setenv bootargs \$(console) \$(owrt_mtdparts) \${owrt_bootargs_root} \; bootm \${loadaddr}
setenv bootcmd run owrt_boot
saveenv
---
Signed-off-by: Luka Perkov <luka@openwrt.org>
SVN-Revision: 40871