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>

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
 

include/configs/am43xx_evm.h

@@ -295,6 +295,7 @@
 			"setenv fdtfile am437x-idk-evm.dtb; fi; " \
 		"if test $fdtfile = undefined; then " \
 			"echo WARNING: Could not determine device tree; fi; \0" \
+	NETARGS \
 	DFUARGS \
 
 #define CONFIG_BOOTCOMMAND \

include/configs/ti_armv7_common.h

@@ -279,4 +279,29 @@
 #endif
 #endif /* !CONFIG_NOR_BOOT */
 
+/* Generic Environment Variables */
+
+#ifdef CONFIG_CMD_NET
+#define NETARGS \
+	"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
+		"::off\0" \
+	"nfsopts=nolock\0" \
+	"rootpath=/export/rootfs\0" \
+	"netloadimage=tftp ${loadaddr} ${bootfile}\0" \
+	"netloadfdt=tftp ${fdtaddr} ${fdtfile}\0" \
+	"netargs=setenv bootargs console=${console} " \
+		"${optargs} " \
+		"root=/dev/nfs " \
+		"nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
+		"ip=dhcp\0" \
+	"netboot=echo Booting from network ...; " \
+		"setenv autoload no; " \
+		"dhcp; " \
+		"run netloadimage; " \
+		"run netloadfdt; " \
+		"run netargs; " \
+		"bootz ${loadaddr} - ${fdtaddr}\0"
+
+#endif
+
 #endif	/* __CONFIG_TI_ARMV7_COMMON_H__ */

include/configs/ti_omap5_common.h

@@ -92,11 +92,6 @@
 		"vram=${vram} " \
 		"root=${mmcroot} " \
 		"rootfstype=${mmcrootfstype}\0" \
-	"netargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=/dev/nfs " \
-		"nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
-		"ip=dhcp\0" \
 	"loadbootscript=fatload mmc ${mmcdev} ${loadaddr} boot.scr\0" \
 	"bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
 		"source ${loadaddr}\0" \
@@ -123,13 +118,6 @@
 				"bootz ${loadaddr} - ${fdtaddr}; " \
 			"fi;" \
 		"fi;\0" \
-	"netboot=echo Booting from network ...; " \
-		"set env autoload no; " \
-		"dhcp; " \
-		"tftp ${loadaddr} ${bootfile}; " \
-		"tftp ${fdtaddr} ${fdtfile}; " \
-		"run netargs; " \
-		"bootz ${loadaddr} - ${fdtaddr}\0" \
 	"findfdt="\
 		"if test $board_name = omap5_uevm; then " \
 			"setenv fdtfile omap5-uevm.dtb; fi; " \
@@ -143,6 +131,7 @@
 			"echo WARNING: Could not determine device tree to use; fi; \0" \
 	"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile};\0" \
 	DFUARGS \
+	NETARGS \
 
 
 #define CONFIG_BOOTCOMMAND \