arm64: tegra132: tegra210: Remove old arm64/stage_entry.S

This patch removes the old arm64/stage_entry.S code that was too
specific to the Tegra SoC boot flow, and replaces it with code that
hides the peculiarities of switching to a different CPU/arch in ramstage
in the Tegra SoC directories.

BRANCH=None
BUG=None
TEST=Built Ryu and Smaug. !!!UNTESTED!!!

Change-Id: Ib3a0448b30ac9c7132581464573efd5e86e03698
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/12078
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 11 insertions, 1 deletions

diff --git a/src/soc/nvidia/tegra132/ramstage.c b/src/soc/nvidia/tegra132/ramstage.c
index ca9cec49c3..fec31c4686 100644
--- a/src/soc/nvidia/tegra132/ramstage.c
+++ b/src/soc/nvidia/tegra132/ramstage.c
@@ -14,6 +14,7 @@
  */
 
 #include <arch/stages.h>
+#include <gic.h>
 #include <soc/addressmap.h>
 #include <soc/clock.h>
 #include <soc/mc.h>
@@ -28,8 +29,14 @@ static void lock_down_vpr(void)
 	write32(&regs->video_protect_reg_ctrl, 1);
 }
 
-void arm64_soc_init(void)
+/* Tegra-specific entry point, called from assembly in stage_entry.S */
+void ramstage_entry(void);
+void ramstage_entry(void)
 {
+	/* TODO: Is this still needed? */
+	gic_init();
+
+	/* TODO: Move TrustZone setup to BL31? */
 	trustzone_region_init();
 
 	tegra132_mmu_init();
@@ -40,4 +47,7 @@ void arm64_soc_init(void)
 
 	/* Lock down VPR */
 	lock_down_vpr();
+
+	/* Jump to boot state machine in common code. */
+	main();
 }