ath79: modify mtd partitions for Buffalo BHR-4GRV2

This commit modifies mtd partitions define for Buffalo BHR-4GRV2 and
move it to generic subtarget.

In Buffalo BHR-4GRV2, "kernel" partition is located behined "rootfs"
partition in the stock firmware. This causes the size of the kernel
to be limited by the fixed value.

0x50000                       0xe80000        0xff0000
  +-------------------------------+--------------+
  |            rootfs             |    kernel    |
  |           (14528k)            |    (1472k)   |
  +-------------------------------+--------------+

After ar71xx was updated to Kernel 4.14, the kernel size of BHR-4GRV2
exceeded the limit, and it breaks builds on official buildbot.
Since this issue was also confirmed in ath79, I modified the mtd
partitions to get rid of that limitation.

0x50000                                       0xff0000
  +----------------------------------------------+
  |                   firmware                   |
  |                   (16000k)                   |
  +----------------------------------------------+

However, this commit breaks compatibility with ar71xx firmware, so I
dropped "SUPPORTED_DEVICES += bhr-4grv2".

This commit requires new flash instruction instead of the old one.

Flash instruction using initramfs image:

1. Connect the computer to the LAN port of BHR-4GRV2
2. Set the IP address of the computer to 192.168.12.10
3. Rename the OpenWrt initramfs image to
"bhr4grv2-uImage-initramfs-gzip.bin" and place it into the TFTP
directory
4. Start the tftp server on the computer
5. While holding down the "ECO" button, connect power cable to
BHR-4GRV2 and turn on it
6. Flashing (orange) diag LED and release the finger from the button,
BHR-4GRV2 downloads the intiramfs image from TFTP server and boot
with it
7. On the initramfs image, create "/etc/fw_env.config" file with
following contents
  /dev/mtd1 0x0 0x10000 0x10000
8. Execute following commands to add environment variables for
u-boot
  fw_setenv ipaddr 192.168.12.1
  fw_setenv serverip 192.168.12.10
  fw_setenv ethaddr 00:aa:bb:cc:dd:ee
  fw_setenv bootcmd "bootm 0x9f050000 || bootm 0x9fe80000"
9. Perform sysupgrade with squashfs-sysupgrade image
10. Wait ~150 seconds to complete flashing

And this commit includes small fix; BHR-4GRV2 has QCA9557 as a SoC,
not QCA9558.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>

diff --git a/include/image-commands.mk b/include/image-commands.mk
index 05d36093d3ec90321e292c4568811673b5a0294a..ac724d20ac4e1f9bafcfad8ea55fec1cc4fed5a9 100644 (file)
--- a/include/image-commands.mk
+++ b/include/image-commands.mk
@@ -62,14 +62,6 @@ define Build/zyxel-ras-image
                && mv $@.new $@
 endef
 
-define Build/mkbuffaloimg
-       $(STAGING_DIR_HOST)/bin/mkbuffaloimg -B $(BOARDNAME) \
-               -R $$(($(subst k, * 1024,$(ROOTFS_SIZE)))) \
-               -K $$(($(subst k, * 1024,$(KERNEL_SIZE)))) \
-               -i $@ -o $@.new
-       mv $@.new $@
-endef
-
 define Build/netgear-chk
        $(STAGING_DIR_HOST)/bin/mkchkimg \
                -o $@.new \

diff --git a/target/linux/ar71xx/image/tiny.mk b/target/linux/ar71xx/image/tiny.mk
index aabe68c2b90a2495e03d567262b1faeb6d0a5735..b318d815378b719ebd2c693e42c08d1f2cd60cdb 100644 (file)
--- a/target/linux/ar71xx/image/tiny.mk
+++ b/target/linux/ar71xx/image/tiny.mk
@@ -1,3 +1,12 @@
+define Build/mkbuffaloimg
+       $(STAGING_DIR_HOST)/bin/mkbuffaloimg -B $(BOARDNAME) \
+               -R $$(($(subst k, * 1024,$(ROOTFS_SIZE)))) \
+               -K $$(($(subst k, * 1024,$(KERNEL_SIZE)))) \
+               -i $@ -o $@.new
+       mv $@.new $@
+endef
+
+
 define Device/bhr-4grv2
   DEVICE_TITLE := Buffalo BHR-4GRV2
   BOARDNAME := BHR-4GRV2

diff --git a/target/linux/ath79/base-files/lib/upgrade/platform.sh b/target/linux/ath79/base-files/lib/upgrade/platform.sh
index 806b3f07871dc37cc65fe8a13df60f9a0c008225..a7cb455b8e9a0c6f983934d74618d4dbb2c698ca 100644 (file)
--- a/target/linux/ath79/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ath79/base-files/lib/upgrade/platform.sh
@@ -22,10 +22,6 @@ platform_do_upgrade() {
        local board=$(board_name)
 
        case "$board" in
-       buffalo,bhr-4grv2)
-               PART_NAME="rootfs:kernel"
-               default_do_upgrade "$ARGV"
-               ;;
        ubnt,routerstation|\
        ubnt,routerstation-pro)
                routerstation_do_upgrade "$ARGV"

diff --git a/target/linux/ath79/dts/qca9558_buffalo_bhr-4grv2.dts b/target/linux/ath79/dts/qca9557_buffalo_bhr-4grv2.dts
similarity index 94%
rename from target/linux/ath79/dts/qca9558_buffalo_bhr-4grv2.dts
rename to target/linux/ath79/dts/qca9557_buffalo_bhr-4grv2.dts
index e2611e5bf0654dafa6739bd07ebb3f88613526ba..6a3a5da6d67819d15eb473e0050ab7f712657641 100644 (file)
--- a/target/linux/ath79/dts/qca9558_buffalo_bhr-4grv2.dts
+++ b/target/linux/ath79/dts/qca9557_buffalo_bhr-4grv2.dts
@@ -93,17 +93,12 @@
                        partition@40000 {
                                label = "u-boot-env";
                                reg = <0x040000 0x010000>;
-                               read-only;
                        };
 
                        partition@50000 {
-                               label = "rootfs";
-                               reg = <0x050000 0xe30000>;
-                       };
-
-                       partition@e80000 {
-                               label = "kernel";
-                               reg = <0xe80000 0x170000>;
+                               compatible = "denx,uimage";
+                               label = "firmware";
+                               reg = <0x050000 0xfa0000>;
                        };
 
                        art: partition@ff0000 {

diff --git a/target/linux/ath79/image/generic.mk b/target/linux/ath79/image/generic.mk
index 3dbed229243324a68bfe2f0705d88fd62228f148..9bdd8f6e350e70c41d2ad2ed95369dbb50e83419 100644 (file)
--- a/target/linux/ath79/image/generic.mk
+++ b/target/linux/ath79/image/generic.mk
@@ -82,6 +82,13 @@ define Device/buffalo_bhr-4grv
 endef
 TARGET_DEVICES += buffalo_bhr-4grv
 
+define Device/buffalo_bhr-4grv2
+  ATH_SOC := qca9557
+  DEVICE_TITLE := Buffalo BHR-4GRV2
+  IMAGE_SIZE := 16000k
+endef
+TARGET_DEVICES += buffalo_bhr-4grv2
+
 define Device/buffalo_wzr-hp-ag300h
   ATH_SOC := ar7161
   DEVICE_TITLE := Buffalo WZR-HP-AG300H

diff --git a/target/linux/ath79/image/tiny.mk b/target/linux/ath79/image/tiny.mk
index 4dda24edacecb75f749079575952f314c2fd7a1a..bf7a5e140b17820648fc77305cda1313eaafc295 100644 (file)
--- a/target/linux/ath79/image/tiny.mk
+++ b/target/linux/ath79/image/tiny.mk
@@ -1,24 +1,5 @@
 include ./common-buffalo.mk
 
-DEVICE_VARS += ROOTFS_SIZE
-
-define Device/buffalo_bhr-4grv2
-  ATH_SOC := qca9558
-  DEVICE_TITLE := Buffalo BHR-4GRV2
-  BOARDNAME := BHR-4GRV2
-  ROOTFS_SIZE := 14528k
-  KERNEL_SIZE := 1472k
-  IMAGE_SIZE := 16000k
-  IMAGES += factory.bin
-  IMAGE/sysupgrade.bin := \
-    append-rootfs | pad-rootfs | pad-to $$$$(ROOTFS_SIZE) | \
-    append-kernel | append-metadata | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := append-kernel | \
-    pad-to $$$$(KERNEL_SIZE) | append-rootfs | pad-rootfs | mkbuffaloimg
-  SUPPORTED_DEVICES += bhr-4grv2
-endef
-TARGET_DEVICES += buffalo_bhr-4grv2
-
 define Device/buffalo_whr-g301n
   ATH_SOC := ar7240
   DEVICE_TITLE := Buffalo WHR-G301N