From: Mike Frysinger Date: Wed, 8 Oct 2008 06:46:09 +0000 (+0800) Subject: Blackfin arch: fix bug - sometimes there is no response to the hitting key in uboot... X-Git-Tag: firefly_0821_release~17712^2~49 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fffe53bee7d90ab2103d2520ab4d095aea9b7397;p=firefly-linux-kernel-4.4.55.git Blackfin arch: fix bug - sometimes there is no response to the hitting key in uboot for bf561-ezkit when running with 50mhz SCLK use 10 delays rather than 7 Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu --- diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c index 367e2dc09881..b0a8f89cc9b6 100644 --- 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" );