[src/trunk]: src/sys/arch/mips/ingenic spin up SMBus clocks before attaching ...

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

details:   https://anonhg.NetBSD.org/src/rev/2525e55dce28
branches:  trunk
changeset: 336779:2525e55dce28
user:      macallan <macallan%NetBSD.org@localhost>
date:      Thu Mar 19 12:22:00 2015 +0000

description:
spin up SMBus clocks before attaching drivers
TODO: only enable clocks for drivers that actually attach

diffstat:

 sys/arch/mips/ingenic/apbus.c |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (36 lines):

diff -r 0aa4bbd447d5 -r 2525e55dce28 sys/arch/mips/ingenic/apbus.c
--- a/sys/arch/mips/ingenic/apbus.c     Thu Mar 19 05:46:25 2015 +0000
+++ b/sys/arch/mips/ingenic/apbus.c     Thu Mar 19 12:22:00 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: apbus.c,v 1.9 2015/03/17 09:26:31 macallan Exp $ */
+/*     $NetBSD: apbus.c,v 1.10 2015/03/19 12:22:00 macallan Exp $ */
 
 /*-
  * Copyright (c) 2014 Michael Lorenz
@@ -29,7 +29,7 @@
 /* catch-all for on-chip peripherals */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: apbus.c,v 1.9 2015/03/17 09:26:31 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: apbus.c,v 1.10 2015/03/19 12:22:00 macallan Exp $");
 
 #include "locators.h"
 #define        _MIPS_BUS_DMA_PRIVATE
@@ -128,12 +128,17 @@
 
        /* enable USB clocks */
        reg = readreg(JZ_CLKGR1);
+       reg &= ~(1 << 0);       /* SMB3 clock */
        reg &= ~(1 << 8);       /* OTG1 clock */
        reg &= ~(1 << 11);      /* AHB_MON clock */
+       reg &= ~(1 << 12);      /* SMB4 clock */
        writereg(JZ_CLKGR1, reg);
 
        reg = readreg(JZ_CLKGR0);
+       reg &= ~(1 << 5);       /* SMB0 clock */
+       reg &= ~(1 << 6);       /* SMB1 clock */
        reg &= ~(1 << 24);      /* UHC clock */
+       reg &= ~(1 << 25);      /* SMB2 clock */
        writereg(JZ_CLKGR0, reg);
 
        /* wake up the USB part */