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>
The bump to kernel 4.14 caused a massive increase in kernel size.
For most targets, switching them to dynamic partitioning allowed
to cope with this.
On some targets, the kernel partition is located behind the rootfs,
which disallows switching to dynamic partitioning as the boot location
would be altered, requiring a u-boot change.
Also within the tiny section, which disables kernel symbols etc
to decrease the image size, the partition size is still too small.
Disable these targets for now, fixing image generation:
- Buffalo BHR-4GRV2
- Zbtlink ZBT-WE1526
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Buffalo BHR-4GRV2 is a wired router, based on Qualcomm Atheros
QCA9558.
Ported from ar71xx target.
Specification:
- Qualcomm Atheros QCA9558
- 64 MB of RAM
- 16 MB of Flash
- 5x 10/100/1000 Ethernet
- QCA8337N
- 4x LEDs, 2x keys
- UART header on PCB
- Vcc, TX, RX, GND from LED side
- 115200n8
Flash instruction using factory image:
1. Connect the computer to the LAN port of BHR-4GRV2
2. Connect power cable to BHR-4GRV2 and turn on it
3. Access to "http://192.168.12.1/" and open firmware update
page ("ファームウェア更新")
4. Select the OpenWrt factory image and click update ("更新実行")
button
5. Wait ~120 seconds to complete flashing
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Move boards to the tiny subtarget which break the build if the kernel is
set to "Optimize for performance".
Signed-off-by: Mathias Kresin <dev@kresin.me>
INAGAKI Hiroshi