[U-Boot] [PATCH v2 3/4] microblaze: Disable all cpu features before reset

Michal Simek
2013-04-23T13:33:38Z

From: Michal Simek <monstr@monstr.eu>

Fix microblaze soft reset function and disable
all cpu features. Especially disable caches because
IRQs were off by disable_interrupts().

Reported-by: John Williams <john.williams@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
Changes in v2: None

board/xilinx/microblaze-generic/microblaze-generic.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/board/xilinx/microblaze-generic/microblaze-generic.c b/board/xilinx/microblaze-generic/microblaze-generic.c
index 8ba99f9..1af0b86 100644
--- a/board/xilinx/microblaze-generic/microblaze-generic.c
+++ b/board/xilinx/microblaze-generic/microblaze-generic.c
@@ -40,7 +40,8 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
#endif

puts ("Reseting board\n");
- asm ("bra r0");
+ __asm__ __volatile__ (" mts rmsr, r0;" \
+ "bra r0");

return 0;
}
--
1.8.2.1

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