[U-Boot] [PATCH v2 11/16] Define board_quiesce_devices() in a shared location

[Heinrich Schuchardt]

On 12/04/2017 10:28 PM, Simon Glass wrote:
> This undocumented function relies on arch-specific code to declare a nop

Undocumented code is unsatisfactory. Please, add a comment to the function.

Best regards

Heinrich

> weak version. Add the weak function in common code instead to avoid having
> to duplicate the same function in each arch.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
> 
> Changes in v2: None
> 
>   arch/arm/include/asm/u-boot-arm.h | 1 -
>   arch/x86/include/asm/u-boot-x86.h | 1 -
>   arch/x86/lib/bootm.c              | 4 ----
>   common/bootm.c                    | 4 ++++
>   include/bootm.h                   | 2 ++
>   5 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/include/asm/u-boot-arm.h b/arch/arm/include/asm/u-boot-arm.h
> index ef4fca68ee..73ccf41f8c 100644
> --- a/arch/arm/include/asm/u-boot-arm.h
> +++ b/arch/arm/include/asm/u-boot-arm.h
> @@ -38,7 +38,6 @@ int	arch_early_init_r(void);
>   
>   /* board/.../... */
>   int	board_init(void);
> -void	board_quiesce_devices(void);
>   
>   /* cpu/.../interrupt.c */
>   int	arch_interrupt_init	(void);
> diff --git a/arch/x86/include/asm/u-boot-x86.h b/arch/x86/include/asm/u-boot-x86.h
> index 187fe5fd8c..d2e1426042 100644
> --- a/arch/x86/include/asm/u-boot-x86.h
> +++ b/arch/x86/include/asm/u-boot-x86.h
> @@ -85,7 +85,6 @@ static inline __attribute__((no_instrument_function)) uint64_t rdtsc(void)
>   /* board/... */
>   void timer_set_tsc_base(uint64_t new_base);
>   uint64_t timer_get_tsc(void);
> -void board_quiesce_devices(void);
>   
>   void quick_ram_check(void);
>   
> diff --git a/arch/x86/lib/bootm.c b/arch/x86/lib/bootm.c
> index e548cdbed5..60ae043f24 100644
> --- a/arch/x86/lib/bootm.c
> +++ b/arch/x86/lib/bootm.c
> @@ -33,10 +33,6 @@ int arch_fixup_fdt(void *blob)
>   	return 0;
>   }
>   
> -__weak void board_quiesce_devices(void)
> -{
> -}
> -
>   void bootm_announce_and_cleanup(void)
>   {
>   	printf("\nStarting kernel ...\n\n");
> diff --git a/common/bootm.c b/common/bootm.c
> index 9493a306cd..9fba0472ac 100644
> --- a/common/bootm.c
> +++ b/common/bootm.c
> @@ -47,6 +47,10 @@ static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
>   				   char * const argv[], bootm_headers_t *images,
>   				   ulong *os_data, ulong *os_len);
>   
> +__weak void board_quiesce_devices(void)
> +{
> +}
> +
>   #ifdef CONFIG_LMB
>   static void boot_start_lmb(bootm_headers_t *images)
>   {
> diff --git a/include/bootm.h b/include/bootm.h
> index 49813772ce..76b6ab42e6 100644
> --- a/include/bootm.h
> +++ b/include/bootm.h
> @@ -73,4 +73,6 @@ int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
>   		       void *load_buf, void *image_buf, ulong image_len,
>   		       uint unc_len, ulong *load_end);
>   
> +void board_quiesce_devices(void);
> +
>   #endif
>