The Sparc port appears to use no generic hardware capability for
performing a CPU reset. Since all of the supported boards use the exact
same code to perform a jump-to-flash it goes into __arch_restart().
This means that Sparc has a no-op __arch_emergency_restart() function.
If the CPU is in an invalid state then jump-to-FLASH probably won't
work.
Signed-off-by: Kyle Moffett <kyle.d.moff...@boeing.com>
Cc: Daniel Hellstrom <dan...@gaisler.com>
---
arch/sparc/lib/board.c | 12 +++++++++++-
1 files changed, 11 insertions(+), 1 deletions(-)
diff --git a/arch/sparc/lib/board.c b/arch/sparc/lib/board.c
index 128ece7..e250274 100644
--- a/arch/sparc/lib/board.c
+++ b/arch/sparc/lib/board.c
@@ -445,7 +445,7 @@ void hang(void)
for (;;) ;
}
-int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+int __arch_restart(void)
{
/* Interrupts off */
disable_interrupts();
@@ -456,4 +456,14 @@ int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *
const argv[])
return 1;
}
+/*
+ * The __arch_restart() just jumps back to flash, which isn't safe to do in
+ * emergency conditions. Since we don't have anything better to do, just
+ * fall through into the default hang().
+ */
+void __arch_emergency_restart(void)
+{
+ return;
+}
+
/************************************************************************/
--
1.7.2.3
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
