[src/trunk]: src/sys/arch/arm/allwinner The A20 manual says that the pll6 out...

[bouyer <bouyer%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e850bb78dc85
branches:  trunk
changeset: 811207:e850bb78dc85
user:      bouyer <bouyer%NetBSD.org@localhost>
date:      Sat Oct 17 15:02:55 2015 +0000

description:
The A20 manual says that the pll6 output is (AWIN_REF_FREQ * n * k) / 2,
not (AWIN_REF_FREQ * n * k) / m (m is only used for the SATA clock).
On the boards I tested, m happens to be 2 so the correct value was returned
anyway.

diffstat:

 sys/arch/arm/allwinner/awin_board.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r d41dc9a9910b -r e850bb78dc85 sys/arch/arm/allwinner/awin_board.c
--- a/sys/arch/arm/allwinner/awin_board.c       Sat Oct 17 15:00:45 2015 +0000
+++ b/sys/arch/arm/allwinner/awin_board.c       Sat Oct 17 15:02:55 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: awin_board.c,v 1.37 2015/10/17 15:00:45 bouyer Exp $   */
+/*     $NetBSD: awin_board.c,v 1.38 2015/10/17 15:02:55 bouyer Exp $   */
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -36,7 +36,7 @@
 
 #include <sys/cdefs.h>
 
-__KERNEL_RCSID(1, "$NetBSD: awin_board.c,v 1.37 2015/10/17 15:00:45 bouyer Exp $");
+__KERNEL_RCSID(1, "$NetBSD: awin_board.c,v 1.38 2015/10/17 15:02:55 bouyer Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -570,7 +570,7 @@
        } else {
                n = __SHIFTOUT(cfg, AWIN_PLL_CFG_FACTOR_N);
                k = __SHIFTOUT(cfg, AWIN_PLL_CFG_FACTOR_K) + 1;
-               m = __SHIFTOUT(cfg, AWIN_PLL_CFG_FACTOR_M) + 1;
+               m = 2;
        }
 
        return (AWIN_REF_FREQ * n * k) / m;