Blackfin arch: fix bug - sometimes there is no response to the hitting key in uboot...

use 10 delays rather than 7

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index 367e2dc..b0a8f89 100644 (file)
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -34,15 +34,15 @@ void bfin_reset(void)
                bfin_write_SWRST(0x7);
 
                /* Due to the way reset is handled in the hardware, we need
-                * to delay for 7 SCLKS.  The only reliable way to do this is
-                * to calculate the CCLK/SCLK ratio and multiply 7.  For now,
+                * to delay for 10 SCLKS.  The only reliable way to do this is
+                * to calculate the CCLK/SCLK ratio and multiply 10.  For now,
                 * we'll assume worse case which is a 1:15 ratio.
                 */
                asm(
                        "LSETUP (1f, 1f) LC0 = %0\n"
                        "1: nop;"
                        :
-                       : "a" (15 * 7)
+                       : "a" (15 * 10)
                        : "LC0", "LB0", "LT0"
                );