On 09/29/2012 01:13 AM, Scott Wood wrote:
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?
Yes. I'll fix it in the next patchset version.
+/*
- 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?
Not at all right now. MPC5200 has dcache disabled, at least in the SPL. Other PowerPC architectures might add a cache flush here if needed at some time. Okay?
Thanks, Stefan