Some (older) CFEs are loaded at 0x80401000 and ramdisks are loaded at
0x80010000, which means that ramdisk size limit is 0x3F1000 (almost 4M).
Therefore, current ramdisks (~4MB) are overwritting CFE in these devices,
which results in a crash.
This commit changes the address where ramdisks are loaded to 0x80a00000,
which is the same address where kernel is loaded when booting from the flash.
Therefore, lzma-loader will now be loaded at 0x80a00000, but it will still
decompress the kernel at 0x80010000.
Tested with huawei,hg556a-b, which has its CFE loaded at 0x80401000.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Apparently, Sercomm allows loading a BCM WFI image via CFE, but this image
destroys "serial" and "protect" nand partitions, which is wrong.
It will also set both bootflags to the same value, which causes booting
issues with cferam (cferom will alternatively boot from cferam1 or cferam2
each time the device is rebooted).
Now that OEM Sercomm images are supported it's time to remove this hacky
cfe.bin image support.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
BCM6368 and newer devices are compatible with any lzma compression parameters.
Add a new legacy device definition and use it on BCM6358 and older devices.
Compressed kernel size is reduced by ~1.35%.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Allows to keep a backup firmware in case active firmware is corrupted.
Also fix hsspi address warning.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This images can be flashed from the official firmware, as opposed to CFE
images, which can only be flashed from CFE and require opening the case.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Introduce support for generating JFFS2 CFE partition tags.
This is used in NAND devices in order to verify the integrity of the JFFS2
partition.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
lzma-loader uart output wasn't working on BCM3380/BCM6362 because these
SoCs have the same processor ID.
Let's use CHIP_ID for establishing the UART base address.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Until now only HW modded SPI flash version was supported.
BCM6328 with 64M RAM and 128M NAND.
More info: https://openwrt.org/toh/sercomm/ad1018
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
BCM63169 with 128M RAM, 128M NAND and BCM53125 switch.
Switch is connected by HSSPI to CS5.
More info: https://openwrt.org/toh/comtrend/vg8050
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
BCM6362 with 64M RAM, 32M NAND and BCM53125 switch.
Switch is connected by MMAP, which is currently unsupported (no VLANs).
More info: https://openwrt.org/toh/netgear/dgnd3700v2
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
