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

Scott Wood
2012-09-28T23:13:52Z

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@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