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authorTom Rini <trini@konsulko.com>2017-04-04 09:20:03 -0400
committerTom Rini <trini@konsulko.com>2017-04-04 09:20:03 -0400
commit4951e9420e179977f49549e25d8fd6437b37da72 (patch)
treee7498383776b712aa8fdefb54309ae2ffe08d170 /arch
parent5f9518b2e1126b6413bab32a8e3f507e0a89f857 (diff)
parent6cba327bd96f90818a8beede51405228c54a5251 (diff)
Merge git://git.denx.de/u-boot-arc
In this patch-set we add support of new AXS103 firmware as well as troubleshoot unexpected execution by multiple cores simultaneously.
Diffstat (limited to 'arch')
-rw-r--r--arch/arc/lib/start.S16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arc/lib/start.S b/arch/arc/lib/start.S
index 90ee7e0fe4..b2ba768309 100644
--- a/arch/arc/lib/start.S
+++ b/arch/arc/lib/start.S
@@ -10,6 +10,22 @@
#include <asm/arcregs.h>
ENTRY(_start)
+ ; Non-masters will be halted immediately, they might be kicked later
+ ; by platform code right before passing control to the Linux kernel
+ ; in bootm.c:boot_jump_linux().
+ lr r5, [identity]
+ lsr r5, r5, 8
+ bmsk r5, r5, 7
+ cmp r5, 0
+ mov.nz r0, r5
+ bz .Lmaster_proceed
+ flag 1
+ nop
+ nop
+ nop
+
+.Lmaster_proceed:
+
/* Setup interrupt vector base that matches "__text_start" */
sr __ivt_start, [ARC_AUX_INTR_VEC_BASE]