lib/cbmem_top: Add a common cbmem_top implementation
This adds a common cbmem_top implementation to all coreboot target.
In romstage a static variable will be used to cache the result of
cbmem_top_romstage.
In ramstage if CONFIG_RAMSTAGE_CBMEM_TOP_ARG is set a global variable
needs to be populated by the stage entry with the value passed via the
calling arguments. if CONFIG_RAMSTAGE_CBMEM_TOP_ARG is not set the
same implementation as will be used as in romstage.
Change-Id: Ie767542ee25483acc9a56785ce20a885e9a63098
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36273
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
diff --git a/src/soc/cavium/cn81xx/cbmem.c b/src/soc/cavium/cn81xx/cbmem.c
index bb6fa18..a39bf4f 100644
--- a/src/soc/cavium/cn81xx/cbmem.c
+++ b/src/soc/cavium/cn81xx/cbmem.c
@@ -20,7 +20,7 @@
#include <stdlib.h>
#include <symbols.h>
-void *cbmem_top(void)
+void *cbmem_top_chipset(void)
{
/* Make sure not to overlap with reserved ATF scratchpad */
return (void *)((uintptr_t)_dram + (sdram_size_mb() - 1) * MiB);