[PATCH 1/3] bsps/arm: Remove register init for ARMv7-M

[Chris Johns]

I have tested hello.exe on RPi2, BBB, and Zedboard and all are OK.

Please push.

I will run the full test suite after.

Thank you for the fix.
Chris

On 26/7/19 4:17 pm, Sebastian Huber wrote:
> There are no known ARMv7-M chips with a dual lockstep mode.
> 
> Update #3773.
> ---
>  bsps/arm/shared/start/start.S | 13 +------------
>  1 file changed, 1 insertion(+), 12 deletions(-)
> 
> diff --git a/bsps/arm/shared/start/start.S b/bsps/arm/shared/start/start.S
> index 80b7d44dbe..a7fd7eda62 100644
> --- a/bsps/arm/shared/start/start.S
> +++ b/bsps/arm/shared/start/start.S
> @@ -369,12 +369,7 @@ bsp_start_vector_table_end:
>  
>  _start:
>  
> -#ifdef BSP_START_NEEDS_REGISTER_INITIALIZATION
> -	bl bsp_start_init_registers_core
> -#endif
> -
> -#ifdef ARM_MULTILIB_VFP
> -#ifdef ARM_MULTILIB_HAS_CPACR
> +#if defined(ARM_MULTILIB_VFP) && defined(ARM_MULTILIB_HAS_CPACR)
>  	/*
>  	 * Enable CP10 and CP11 coprocessors for privileged and user mode in
>  	 * CPACR (bits 20-23).  Ensure that write to register completes.
> @@ -387,12 +382,6 @@ _start:
>  	isb
>  #endif
>  
> -#ifdef BSP_START_NEEDS_REGISTER_INITIALIZATION
> -	bl bsp_start_init_registers_vfp
> -#endif
> -
> -#endif /* ARM_MULTILIB_VFP */
> -
>  	ldr	sp, =_ISR_Stack_area_end
>  	ldr	lr, =.Lstart_hook_0_done + 1
>  	b	bsp_start_hook_0
>