linux/firmware/bflb-m0-fw.h is missing

[illantalex]

I tried to build the kernel module together with the helper program but it shows me that this header is missing (I can't find it anywhere in bl808_linux repo or in the IoT SDK)

This is the command I used (the toolchain is the same one I used to compile the kernel):

make CONFIG_BL_INTF=XRAM KDIR=../bl808_linux/linux-5.10.4-808/ ARCH=riscv CROSS_COMPILE=$RISCV_TOOLCHAIN -j

And this was the output:

KCPPFLAGS="" make -C ../bl808_linux/linux-5.10.4-808/ M=/media/illantalex/lin_backup/bl808/blwnet_xram modules
make CC=cc CFLAGS= AR=ar -C userspace
make[1]: Entering directory '/media/illantalex/lin_backup/bl808/blwnet_xram/userspace'
cc -DBUILD_USERSPACE -g -c blctl_main.c -o blctl_main.o
make[1]: Entering directory '/media/illantalex/lin_backup/bl808/bl808_linux/linux-5.10.4-808'
cc -DBUILD_USERSPACE -g -c blctl.c -o blctl.o
cc -DBUILD_USERSPACE -g -c blctl_ota.c -o blctl_ota.o
cc -DBUILD_USERSPACE -g -c utils.c -o utils.o
cc -DBUILD_USERSPACE -g -c blctld_main.c -o blctld_main.o
ar rcu libblctl.a blctl.o blctl_ota.o utils.o
ar: `u' modifier ignored since `D' is the default (see `U')
cc -DBUILD_USERSPACE -g blctl_main.o libblctl.a -o blctl -L. -lblctl -lpthread
cc -DBUILD_USERSPACE -g blctld_main.o libblctl.a -o blctld -L. -lblctl -lpthread
make[1]: Leaving directory '/media/illantalex/lin_backup/bl808/blwnet_xram/userspace'
  CC [M]  /media/illantalex/lin_backup/bl808/blwnet_xram/main.o
  CC [M]  /media/illantalex/lin_backup/bl808/blwnet_xram/wifi.o
  CC [M]  /media/illantalex/lin_backup/bl808/blwnet_xram/msg_handlers.o
  CC [M]  /media/illantalex/lin_backup/bl808/blwnet_xram/ctl_port.o
  CC [M]  /media/illantalex/lin_backup/bl808/blwnet_xram/bl_xram_eth.o
  CC [M]  /media/illantalex/lin_backup/bl808/blwnet_xram/xram_msg_handlers.o
/media/illantalex/lin_backup/bl808/blwnet_xram/bl_xram_eth.c:21:10: fatal error: linux/firmware/bflb-m0-fw.h: No such file or directory
   21 | #include <linux/firmware/bflb-m0-fw.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [scripts/Makefile.build:279: /media/illantalex/lin_backup/bl808/blwnet_xram/bl_xram_eth.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile:1805: /media/illantalex/lin_backup/bl808/blwnet_xram] Error 2
make[1]: Leaving directory '/media/illantalex/lin_backup/bl808/bl808_linux/linux-5.10.4-808'
make: *** [Makefile:57: lkm] Error 2