The Raidsonic devices do not use a 2048k kernel "Kern"
partition like the Storlink reference designs. Instead
it uses a 3072k partition to fit a slightly
larger kernel.
Sadly the current OpenWrt Gemini kernel is still bigger
than 3072k so we need to make use of the Ramdisk
partition as well.
Create a special "copy-kernel" version that can deal
with the Raidsonic 3072k kernels. Tested on the
Raidsonic IB-4220-B booting kernel v6.12.66.
Fix a copy/paste error in the image generation makefile
while we are at it.
Link: https://github.com/openwrt/openwrt/pull/21686
(cherry picked from commit 691aa70e16)
Link: https://github.com/openwrt/openwrt/pull/21973
Signed-off-by: Linus Walleij <linusw@kernel.org>
Make treat copy-kernel.o as intermediate and delete it when it's no
longer needed. This can fail when the same submake was triggered
multiple times for different devices.
arm-openwrt-linux-muslgnueabi-as -k -o copy-kernel.o copy-kernel.S
export MAKEFLAGS= ;make -w -C copy-kernel CROSS_COMPILE=arm-openwrt-linux-muslgnueabi-
arm-openwrt-linux-muslgnueabi-objcopy -O binary -S copy-kernel.o copy-kernel.bin
make[5]: Entering directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
arm-openwrt-linux-muslgnueabi-objcopy -O binary -S copy-kernel.o copy-kernel.bin
rm copy-kernel.o
make[5]: Leaving directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
# "App" partition is the rootfs
arm-openwrt-linux-muslgnueabi-objcopy: 'copy-kernel.o': No such file
Makefile:27: recipe for target 'copy-kernel.bin' failed
make[5]: Leaving directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
make[5]: *** [copy-kernel.bin] Error 1
Makefile:244: recipe for target '/builder/shared-workdir/build/build_dir/target-arm_fa526_musl_eabi/linux-gemini/tmp/openwrt-gemini-storlink_sl93512r-ext4-factory.bin' failed
make[4]: *** [/builder/shared-workdir/build/build_dir/target-arm_fa526_musl_eabi/linux-gemini/tmp/openwrt-gemini-storlink_sl93512r-ext4-factory.bin] Error 2
With this change, output files are directed to $(KDIR)
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
This package just contains a small Gemini-only assembler
bootstrap loop to copy the kernel from the two fragments
(previously zImage at 0x01600000 and initramdisk at 0x00800000)
into one big zImage of up to 8 MB at 0x00400000.
It will be built on demand from the Gemini image Makefile.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
