uboot-envtools: add support for the realtek target

On most boards the MAC is located inside the u-boot-env.

Signed-off-by: John Crispin <john@phrozen.org>

package/boot/uboot-envtools/files/realtek

@@ -0,0 +1,29 @@
+[ -e /etc/config/ubootenv ] && exit 0
+
+touch /etc/config/ubootenv
+
+. /lib/uboot-envtools.sh
+. /lib/functions.sh
+
+board=$(board_name)
+
+case "$board" in
+d-link,dgs-1210-16|\
+d-link,dgs-1210-28|\
+d-link,dgs-1210-10p|\
+zyxel,gs1900-10hp)
+	idx="$(find_mtd_index u-boot-env)"
+	[ -n "$idx" ] && \
+		ubootenv_add_uci_config "/dev/mtd$idx" "0x0" "0x400" "0x10000"
+	;;
+*)
+	idx="$(find_mtd_index u-boot-env)"
+	[ -n "$idx" ] && \
+		ubootenv_add_uci_config "/dev/mtd$idx" "0x0" "0x10000" "0x10000"
+	;;
+esac
+
+config_load ubootenv
+config_foreach ubootenv_add_app_config ubootenv
+
+exit 0