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ARM MXC: Make-sure-ipg_per_clk-is-generated-by-ipg_clk-and-not-usb_pll 

From ff1fd9d7015d9b9ad3e0df2016d0415e2719747c Mon Sep 17 00:00:00 2001
From: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Date: Fri, 15 May 2009 17:21:21 +0200
Subject: [PATCH] Make sure ipg_per_clk is generated by ipg_clk and not usb_pll

Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Alberto Panizzo 2009-05-15 18:48:13 +02:00 committed by Sascha Hauer
parent 183c7fff50
commit 92ab0a5015
1 changed files with 6 additions and 0 deletions
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6
arch/arm/mach-mx3/clock.c
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@ -579,6 +579,12 @@ int __init mx31_clocks_init(unsigned long fref)
MX32, but still required to be set */
MXC_CCM_CGR2);
/*
* Before turning off usb_pll make sure ipg_per_clk is generated
* by ipg_clk and not usb_pll.
*/
__raw_writel(__raw_readl(MXC_CCM_CCMR) | (1 << 24), MXC_CCM_CCMR);
usb_pll_disable(&usb_pll_clk);
pr_info("Clock input source is %ld\n", clk_get_rate(&ckih_clk));