From 7dcf9d51e5ffadfcf8b5fceddcddb4e1d0a7db37 Mon Sep 17 00:00:00 2001
From: Julius Werner <jwerner@chromium.org>
Date: Fri, 16 Oct 2015 13:10:02 -0700
Subject: 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>
---
 src/soc/nvidia/tegra132/romstage.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/soc/nvidia/tegra132/romstage.c')

diff --git a/src/soc/nvidia/tegra132/romstage.c b/src/soc/nvidia/tegra132/romstage.c
index a6753b3a87..3b45aff63d 100644
--- a/src/soc/nvidia/tegra132/romstage.c
+++ b/src/soc/nvidia/tegra132/romstage.c
@@ -19,6 +19,7 @@
 #include <cbmem.h>
 #include <console/cbmem_console.h>
 #include <console/console.h>
+#include <lib.h>
 #include <program_loading.h>
 #include <soc/addressmap.h>
 #include <soc/ccplex.h>
@@ -26,6 +27,7 @@
 #include <soc/sdram.h>
 #include <soc/sdram_configs.h>
 #include <soc/romstage.h>
+#include <symbols.h>
 #include <timer.h>
 #include <timestamp.h>
 
@@ -82,6 +84,9 @@ void romstage(void)
 
 void platform_prog_run(struct prog *prog)
 {
+	/* We'll switch to a new stack, so validate our old one here. */
+	checkstack(_estack, 0);
+
 	ccplex_cpu_start(prog_entry(prog));
 
 	clock_halt_avp();
-- 
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