ramips: RT-N56U support fixes and factory image creation

Signed-off-by: Mikko Hissa <mikko.hissa@werzek.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41224 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 58 insertions, 3 deletions

diff --git a/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming b/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming
index 67a1746f1d..fd06d20c99 100644
--- a/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming
+++ b/target/linux/ramips/base-files/lib/preinit/04_handle_checksumming
@@ -5,7 +5,7 @@
 # this, so we make sure to zero checksum and size to be checksummed before
 # that happens, so this needs to run very early during boot.
 
-do_wnce2001_checksumming_disable() {
+do_checksumming_disable() {
 	. /lib/ramips.sh
 
 	local board=$(ramips_board_name)
@@ -35,9 +35,22 @@ do_wnce2001_checksumming_disable() {
 			echo "Checksum is already zero, nothing to do."
 		fi
 	;;
+	rt-n56u)
+		echo "Board is ASUS RT-N56U, replacing uImage header..."
+		local firmware_mtd=$(find_mtd_part firmware)
+		local rootfs_mtd=$(find_mtd_part rootfs)
+		local rootfs_data_mtd=$(find_mtd_part rootfs_data)
+		local rootfs_len=$(grep \"rootfs\" /proc/mtd | awk -F' ' '{print "0x"$2}')
+		local rootfs_data_len=$(grep \"rootfs_data\" /proc/mtd | awk -F' ' '{print "0x"$2}')
+		local offset=$(echo "$rootfs_len $rootfs_data_len 0x40" | awk -F' ' '{printf "%i",$1-$2-$3}')
+		local signature=$(dd if=$rootfs_mtd skip=$offset bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"')
+		if [ "$signature" == "27051956" ]; then
+			dd conv=notrunc if=$rootfs_mtd skip=$offset of=$firmware_mtd bs=1 count=64 2>/dev/null
+		fi
+	;;
 	esac
 
 	return 0
 }
 
-boot_hook_add preinit_main do_wnce2001_checksumming_disable
+boot_hook_add preinit_main do_checksumming_disable
diff --git a/target/linux/ramips/dts/RTN56U.dts b/target/linux/ramips/dts/RTN56U.dts
index b962aa0d23..305e36e85b 100644
--- a/target/linux/ramips/dts/RTN56U.dts
+++ b/target/linux/ramips/dts/RTN56U.dts
@@ -43,12 +43,20 @@
 		host-bridge {
 			pci-bridge@1 {
 				status = "okay";
+				wmac@0,0 {
+                                        compatible = "ralink,rt2880-pci", "pciclass060400", "pciclass0604";
+                                        reg = < 0x10000 0 0 0 0 >;
+                                        ralink,eeprom = "rt2x00pci_1_0.eeprom";
+                                };
+
 			};
 		};
 	};
 
 	wmac@10180000 {
+		status = "okay";
 		ralink,2ghz = <0>;
+		ralink,eeprom = "soc_wmac.eeprom";
 	};
 
 	ehci@101c0000 {
diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile
index 58a54773c2..1b342deb7a 100644
--- a/target/linux/ramips/image/Makefile
+++ b/target/linux/ramips/image/Makefile
@@ -665,7 +665,13 @@ Image/Build/Profile/DIR645=$(call BuildFirmware/Seama/$(1),$(1),dir-645,DIR-645,
 omniembhpm_mtd_size=16449536
 Image/Build/Profile/OMNIEMBHPM=$(call BuildFirmware/CustomFlash/$(1),$(1),omni-emb-hpm,OMNI-EMB-HPM,$(omniembhpm_mtd_size))
 
-Image/Build/Profile/RTN56U=$(call BuildFirmware/Default8M/$(1),$(1),rt-n56u,RTN56U)
+define BuildFirmware/RTN56U/squashfs
+	$(call BuildFirmware/Default8M/$(1),$(1),rt-n56u,RTN56U)
+	-mkrtn56uimg -s $(call sysupname,$(1),rt-n56u)
+	-cp $(call sysupname,$(1),rt-n56u) $(call imgname,$(1),rt-n56u)-factory.bin
+	-mkrtn56uimg -f $(call imgname,$(1),rt-n56u)-factory.bin
+endef
+Image/Build/Profile/RTN56U=$(call BuildFirmware/RTN56U/$(1),$(1),rt-n56u,RTN56U)
 
 Image/Build/Profile/TEW691GR=$(call BuildFirmware/UMedia/$(1),$(1),tew-691gr,TEW-691GR,0x026910)
 
diff --git a/target/linux/ramips/patches-3.10/0135-mtd-add-rtn56u-support.patch b/target/linux/ramips/patches-3.10/0135-mtd-add-rtn56u-support.patch
new file mode 100644
index 0000000000..52379916b9
--- /dev/null
+++ b/target/linux/ramips/patches-3.10/0135-mtd-add-rtn56u-support.patch
@@ -0,0 +1,28 @@
+--- a/drivers/mtd/mtdpart.c	2014-04-27 10:09:21.566294160 +0300
++++ b/drivers/mtd/mtdpart.c	2014-06-09 11:27:48.952211672 +0300
+@@ -793,8 +793,11 @@
+ {
+ 	struct {
+ 		__be32 magic;
+-		__be32 pad[2];
++		__be32 pad0[2];
+ 		__be32 size;
++		__be32 pad1[4];
++		__be32 name[7];
++		__be32 kern_size;
+ 	} hdr;
+ 	size_t len;
+ 
+@@ -804,7 +807,11 @@
+ 	if (len != sizeof(hdr) || hdr.magic != cpu_to_be32(UBOOT_MAGIC))
+ 		return;
+ 
+-	len = be32_to_cpu(hdr.size) + 0x40;
++	if (hdr.kern_size != 0 && hdr.name[0] == 0)
++		len = be32_to_cpu(hdr.kern_size);
++	else
++		len = be32_to_cpu(hdr.size) + 0x40;
++
+ 	__mtd_add_partition(master, "rootfs", part->offset + len,
+ 			    part->mtd.size - len, false);
+ }