From: eric@eukrea.com (Eric Bénard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/8] i.MX25: fix get_rate_otg to return the correct value
Date: Tue, 8 Jun 2010 11:02:57 +0200 [thread overview]
Message-ID: <1275987782-16094-3-git-send-email-eric@eukrea.com> (raw)
In-Reply-To: <1275987782-16094-2-git-send-email-eric@eukrea.com>
usb drivers need to get the right value for otg clock so
calculate and return it
Signed-off-by: Eric B?nard <eric@eukrea.com>
---
arch/arm/mach-mx25/clock.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-mx25/clock.c b/arch/arm/mach-mx25/clock.c
index 1550149..d2835ff 100644
--- a/arch/arm/mach-mx25/clock.c
+++ b/arch/arm/mach-mx25/clock.c
@@ -131,7 +131,10 @@ static unsigned long get_rate_lcdc(struct clk *clk)
static unsigned long get_rate_otg(struct clk *clk)
{
- return 48000000; /* FIXME */
+ unsigned long cctl = readl(CRM_BASE + CCM_CCTL);
+ unsigned long rate = get_rate_upll();
+
+ return (cctl & (1 << 23)) ? 0 : rate / ((0x3F & (cctl >> 16)) + 1);
}
static int clk_cgcr_enable(struct clk *clk)
--
1.6.3.3
next prev parent reply other threads:[~2010-06-08 9:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-08 9:02 [PATCH 1/8] MX25: put define for OTG base address in right include Eric Bénard
2010-06-08 9:02 ` [PATCH 2/8] plat-mxc/ehci.c: add i.MX25 support Eric Bénard
2010-06-08 9:02 ` Eric Bénard [this message]
2010-06-08 9:02 ` [PATCH 4/8] i.MX25: fix EHCI support Eric Bénard
2010-06-08 9:02 ` [PATCH 5/8] i.MX25: fix USB gadget support Eric Bénard
2010-06-08 9:03 ` [PATCH 6/8] i.MX25: add AUDMUX and SSI support Eric Bénard
2010-06-08 9:03 ` [PATCH 7/8] i.MX25: add cpuimx25 module and its baseboard Eric Bénard
2010-06-08 9:03 ` [PATCH 8/8] eukrea-tlv320: add support for our i.MX25 board Eric Bénard
2010-06-10 6:36 ` [PATCH 1/8] MX25: put define for OTG base address in right include Sascha Hauer
2010-06-10 7:00 ` Eric Bénard
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