ti: am335x/am437x/omap5 devices: Unify network environment variables

Across several devices network environment variables are duplicated.
Move these variables to a common include file which insures the environment
variables are reused and insures devices across product lines share the same
values.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index a87059c..8da3325 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -83,10 +83,6 @@
 	"mmcdev=0\0" \
 	"mmcroot=/dev/mmcblk0p2 ro\0" \
 	"mmcrootfstype=ext4 rootwait\0" \
-	"rootpath=/export/rootfs\0" \
-	"nfsopts=nolock\0" \
-	"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
-		"::off\0" \
 	"ramroot=/dev/ram0 rw\0" \
 	"ramrootfstype=ext2\0" \
 	"mmcargs=setenv bootargs console=${console} " \
@@ -102,11 +98,6 @@
 		"${optargs} " \
 		"root=${spiroot} " \
 		"rootfstype=${spirootfstype}\0" \
-	"netargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=/dev/nfs " \
-		"nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
-		"ip=dhcp\0" \
 	"bootenv=uEnv.txt\0" \
 	"loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
 	"bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
@@ -159,13 +150,6 @@
 		"sf probe ${spibusno}:0; " \
 		"sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; " \
 		"bootz ${loadaddr}\0" \
-	"netboot=echo Booting from network ...; " \
-		"setenv autoload no; " \
-		"dhcp; " \
-		"tftp ${loadaddr} ${bootfile}; " \
-		"tftp ${fdtaddr} ${fdtfile}; " \
-		"run netargs; " \
-		"bootz ${loadaddr} - ${fdtaddr}\0" \
 	"ramboot=echo Booting from ramdisk ...; " \
 		"run ramargs; " \
 		"bootz ${loadaddr} ${rdaddr} ${fdtaddr}\0" \
@@ -181,6 +165,7 @@
 		"if test $fdtfile = undefined; then " \
 			"echo WARNING: Could not determine device tree to use; fi; \0" \
 	NANDARGS \
+	NETARGS \
 	DFUARGS
 #endif