[PATCH] arm64: versal-net: Enable remaking ELF from bin

[Michal Simek]

On 1/19/23 10:46, Michal Simek wrote:
> U-Boot is composing u-boot.bin from u-boot-nodtb.bin with appended
> dts/dt.dtb. It means U-Boot doesn't have DTB inside. When REMAKE_ELF is
> enabled make will also create u-boot.elf which is recreated from
> u-boot.bin. Below is build output for mini configuration how ELF is
> recreated.
> 
> cat arch/arm/dts/versal-net-mini.dtb > dts/dt.dtb
> cat u-boot-nodtb.bin dts/dt.dtb > u-boot-dtb.bin
> cp dts/dt.dtb u-boot.dtb
> cp u-boot-dtb.bin u-boot.bin
> aarch64-linux-gnu-objcopy -I binary -B aarch64 -O elf64-littleaarch64
>   u-boot.bin u-boot-elf.o
> aarch64-linux-gnu-ld.bfd u-boot-elf.o -o u-boot.elf -EL -T u-boot-elf.lds
>   --defsym="_start"=0xBBF00000 -Ttext=0xBBF00000
> 
> It is useful to have u-boot.elf present because Xilinx XSDB debugger can
> load ELF file and user doesn't need to specify loading address for
> u-boot.bin.
> 
> Signed-off-by: Michal Simek <michal.simek at amd.com>
> ---
> 
>   configs/xilinx_versal_net_mini_defconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/configs/xilinx_versal_net_mini_defconfig b/configs/xilinx_versal_net_mini_defconfig
> index 5bad1791964f..0ff5268bc342 100644
> --- a/configs/xilinx_versal_net_mini_defconfig
> +++ b/configs/xilinx_versal_net_mini_defconfig
> @@ -20,6 +20,7 @@ CONFIG_SYS_MEMTEST_END=0x00001000
>   CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
>   CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xBBF10000
>   # CONFIG_EXPERT is not set
> +CONFIG_REMAKE_ELF=y
>   # CONFIG_LEGACY_IMAGE_FORMAT is not set
>   # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
>   # CONFIG_AUTOBOOT is not set

Applied.
M