arch/ppc64: Pass cbmem_top to ramstage via calling argument

This avoids the need for a platform specific implementation of
cbmem_top.

HOW TO TEST? There is no serial console for the qemu target...

Change-Id: I68aa09a46786eba37c009c5f08642445805b08eb
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36276
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marty E. Plummer <hanetzer@startmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Arthur Heymans 2019-10-23 18:58:06 +02:00 committed by Patrick Georgi
parent bc78e014c5
commit a09d33ec88
4 changed files with 6 additions and 3 deletions

View File

@ -1,5 +1,6 @@
config ARCH_PPC64
bool
select RAMSTAGE_CBMEM_TOP_ARG
config ARCH_BOOTBLOCK_PPC64
bool

View File

@ -16,6 +16,6 @@
#include <main_decl.h>
void stage_entry(void) __attribute__((section(".text.stage_entry")));
void stage_entry(uintptr_t stage_arg) __attribute__((section(".text.stage_entry")));
#endif

View File

@ -22,9 +22,12 @@
* linker script.
*/
#include <cbmem.h>
#include <arch/stages.h>
void stage_entry(void)
void stage_entry(uintptr_t stage_arg)
{
if (!ENV_ROMSTAGE_OR_BEFORE)
_cbmem_top_ptr = stage_arg;
main();
}

View File

@ -15,7 +15,6 @@
bootblock-y += bootblock.c
bootblock-y += uart.c
romstage-y += cbmem.c
ramstage-y += cbmem.c
romstage-y += romstage.c
ramstage-y += timer.c
romstage-y += uart.c