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authorAaron Durbin <adurbin@chromium.org>2014-07-15 10:25:48 -0500
committerMarc Jones <marc.jones@se-eng.com>2015-03-05 17:33:11 +0100
commit30cda7e83f06f5a84eb9dfea3be9f435bb36d392 (patch)
tree6162c2ae5b464050e10ccc8addf41d31e24fb0fd /src/arch/arm64/include/arch
parent072e0cc899aa11ca55fecd9e8a384a045975f735 (diff)
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arm64: provide early SoC initialization
Some of the SoC's need an early hook to configure certain registers. One example of this is on t132 where ramstage is the first thing being ran on the arm64 core and it is the only entity that can configure certain registers required for the rest of ramstage. Therefore, provide the opportunity for the SoC to implement such requirements. BUG=chrome-os-partner:30572 BRANCH=None TEST=Built and ran through coreboot. Original-Change-Id: Ib352f3788872f888581b398c9b394b7c4e54b02a Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/208061 Original-Reviewed-by: Tom Warren <twarren@nvidia.com> Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> (cherry picked from commit 2c50e2b39e75d1383e8e573c576630a5b7313349) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: I38df63e46c5c21b2d319fc9eb42053c3a0d61bc8 Reviewed-on: http://review.coreboot.org/8595 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/arch/arm64/include/arch')
-rw-r--r--src/arch/arm64/include/arch/stages.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/arch/arm64/include/arch/stages.h b/src/arch/arm64/include/arch/stages.h
index 0f8245049..97714926e 100644
--- a/src/arch/arm64/include/arch/stages.h
+++ b/src/arch/arm64/include/arch/stages.h
@@ -26,4 +26,12 @@ void stage_entry(void);
void stage_exit(void *);
void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size);
+/* C entry point for all arm64 stages. */
+void arm64_init(void);
+
+/* This function is called upon initial entry of each stage. It is called prior
+ * to main(). That means all of the common infrastructure will most likely not
+ * be available to be used (such as console). */
+void arm64_soc_init(void);
+
#endif