arm/km: enable FDT for km_kirwkood

This consists of:
a) Defining the addresses, enabling fdtsupport [arm]
b) Defining "cramfsloadfdt"  [arm,powerpc => common]
c) Adding the FDT address to bootm [arm,powerpc => common]
d) Defining "tftpfdt" in ramfs-,develop- [arm,powerpc >= common]

This should work with 3.10 kernels, whether loaded through TFTP
(with rootfs either through NFS or TFTP-ramfs) or from the NAND.

The machid was left unchanged, this should keep compatibility with both
older and newer kernels.

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Valentin Longchamp <valentin.longchamp@keymile.com>

board/keymile/scripts/develop-arm.txt

@@ -1,2 +1 @@
 setup_debug_env=tftpboot 0x200000 scripts/develop-common.txt && env import -t 0x200000 ${filesize} && run configure
-tftpfdt=true

board/keymile/scripts/develop-common.txt

@@ -3,6 +3,7 @@ bootcmd=run ${subbootcmds}
 configure=run set_uimage; km_setboardid && saveenv && reset
 subbootcmds=tftpfdt tftpkernel nfsargs add_default boot
 nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${toolchain}/${arch}
+tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb
 tftpkernel=tftpboot ${load_addr_r} ${hostname}/${uimage}
 toolchain=/opt/eldk
 rootfssize=0

board/keymile/scripts/develop-ppc_82xx.txt

@@ -1,2 +1 @@
 setup_debug_env=tftpboot 0x200000 scripts/develop-common.txt && env import -t 0x200000 ${filesize} && run configure
-tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb

board/keymile/scripts/develop-ppc_8xx.txt

@@ -1,2 +1 @@
 setup_debug_env=tftpboot 0x200000 scripts/develop-common.txt && env import -t 0x200000 ${filesize} && run configure
-tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb

board/keymile/scripts/ramfs-arm.txt

@@ -1,2 +1 @@
 setup_debug_env=tftpboot 0x200000 scripts/ramfs-common.txt && env import -t 0x200000 ${filesize} && run configure
-tftpfdt=true

board/keymile/scripts/ramfs-common.txt

@@ -7,6 +7,7 @@ nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath}
 configure=run set_uimage; km_setboardid && saveenv && reset
 rootfsfile=${hostname}/rootfsImage
 setrootfsaddr=setexpr value ${pnvramaddr} - ${rootfssize} && setenv rootfsaddr 0x${value}
+tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb
 tftpkernel=tftpboot ${load_addr_r} ${hostname}/${uimage}
 tftpramfs=tftpboot ${rootfsaddr} ${hostname}/rootfsImage
 set_uimage=printenv uimage || setenv uimage uImage

board/keymile/scripts/ramfs-ppc_82xx.txt

@@ -1,2 +1 @@
 setup_debug_env=tftpboot 0x200000 scripts/ramfs-common.txt && env import -t 0x200000 ${filesize} && run configure
-tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb

board/keymile/scripts/ramfs-ppc_8xx.txt

@@ -1,2 +1 @@
 setup_debug_env=tftpboot 0x200000 scripts/ramfs-common.txt && env import -t 0x200000 ${filesize} && run configure
-tftpfdt=tftpboot ${fdt_addr_r} ${hostname}/${hostname}.dtb