ath79: build Compex WPJ531 cpximg files
authorLeon M. George <leon@georgemail.eu>
Thu, 25 Jul 2019 09:59:56 +0000 (11:59 +0200)
committerAdrian Schmutzler <freifunk@adrianschmutzler.de>
Sat, 27 Jun 2020 22:26:39 +0000 (00:26 +0200)
Generate additional images that are compatible to the cpximg loader.
The cpximg loader can be started either by holding the reset button during
power up or by entering the u-boot prompt and entering 'cpximg'.
Once it's running, a TFTP-server under 192.168.1.1 will accept the image
appropriate for the board revision that is etched on the board.

For example, if the board is labelled '7A04':

tftp -v -m binary 192.168.1.1 -c put openwrt-ath79-generic-compex_wpj531-16m-squashfs-cpximg-7A04.bin

These files can also be used with the sysupgrade utility in stock images (add
SSH key in luci for root access).

Signed-off-by: Leon M. George <leon@georgemail.eu>
[fix sorting of definitions]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
target/linux/ath79/image/generic.mk

index 35def34..f99fcde 100644 (file)
@@ -50,6 +50,29 @@ define Build/cybertan-trx
        -rm $@-empty.bin
 endef
 
+define Build/mkmylofw_16m
+       $(eval device_id=$(word 1,$(1)))
+       $(eval revision=$(word 2,$(1)))
+
+       # On WPJ344, WPJ531, and WPJ563, the default boot command tries 0x9f680000
+       # first and fails if the remains of the stock image are sill there
+       # - resulting in an infinite boot loop.
+       # The size parameter is grown to have that block deleted if the firmware
+       # isn't big enough by itself.
+
+       let \
+               size="$$(stat -c%s $@)" \
+               pad="$(subst k,* 1024,$(BLOCKSIZE))" \
+               pad="(pad - (size % pad)) % pad" \
+               newsize='size + pad' ; \
+               [ $$newsize -lt $$((0x660000)) ] && newsize=0x660000 ; \
+               $(STAGING_DIR_HOST)/bin/mkmylofw \
+                       -B WPE72 -i 0x11f6:$(device_id):0x11f6:$(device_id) -r $(revision) \
+                       -s 0x1000000 -p0x30000:$$newsize:al:0x80060000:"OpenWRT":$@ \
+                       $@.new
+               @mv $@.new $@
+endef
+
 define Build/mkwrggimg
        $(STAGING_DIR_HOST)/bin/mkwrggimg -b \
                -i $@ -o $@.imghdr -d /dev/mtdblock/1 \
@@ -426,6 +449,11 @@ define Device/compex_wpj531-16m
   DEVICE_MODEL := WPJ531
   DEVICE_VARIANT := 16M
   SUPPORTED_DEVICES += wpj531
+  IMAGES += cpximg-7a03.bin cpximg-7a04.bin cpximg-7a06.bin cpximg-7a07.bin
+  IMAGE/cpximg-7a03.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | mkmylofw_16m 0x68a 2
+  IMAGE/cpximg-7a04.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | mkmylofw_16m 0x693 3
+  IMAGE/cpximg-7a06.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | mkmylofw_16m 0x693 3
+  IMAGE/cpximg-7a07.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | mkmylofw_16m 0x693 3
 endef
 TARGET_DEVICES += compex_wpj531-16m