[U-Boot] [PATCH v3 2/8] SPL: Port SPL framework to powerpc

[Scott Wood]

On 09/26/2012 04:01:08 AM, Stefan Roese wrote:
> This patch enables the SPL framework to be used on powerpc platforms
> and not only ARM.
> 
> Signed-off-by: Stefan Roese <sr at denx.de>
> ---
> Changes in v2:
> - Rebased on Tom's SPL framework patches v4
> - Add option to skip copying of the mkimage header
> 
>  arch/powerpc/lib/Makefile |  1 +
>  arch/powerpc/lib/spl.c    | 42  
> ++++++++++++++++++++++++++++++++++++++++++
>  common/spl/spl.c          | 10 ++++++++++
>  3 files changed, 53 insertions(+)
>  create mode 100644 arch/powerpc/lib/spl.c
> 
> diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
> index 965f9ea..9bcbdde 100644
> --- a/arch/powerpc/lib/Makefile
> +++ b/arch/powerpc/lib/Makefile
> @@ -50,6 +50,7 @@ COBJS-y	+= cache.o
>  COBJS-y	+= extable.o
>  COBJS-y	+= interrupts.o
>  COBJS-$(CONFIG_CMD_KGDB) += kgdb.o
> +COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o
>  COBJS-y	+= time.o

Won't this build spl.o into the main U-Boot as well?

> +/*
> + * This function jumps to an image with argument. Normally an FDT or  
> ATAGS
> + * image.
> + * arg: Pointer to paramter image in RAM
> + */
> +#ifdef CONFIG_SPL_OS_BOOT
> +void __noreturn jump_to_image_linux(void *arg)
> +{
> +	debug("Entering kernel arg pointer: 0x%p\n", arg);
> +	typedef void (*image_entry_arg_t)(void *, ulong r4, ulong r5,  
> ulong r6,
> +					  ulong r7, ulong r8, ulong r9)
> +		__attribute__ ((noreturn));
> +	image_entry_arg_t image_entry =
> +		(image_entry_arg_t)spl_image.entry_point;
> +
> +	image_entry(arg, 0, 0, EPAPR_MAGIC, CONFIG_SYS_BOOTMAPSZ, 0, 0);
> +}

At what point does the image get cache-flushed?

-Scott