From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Thu, 3 Sep 2009 13:59:00 +0000 (+0900)
Subject: MIPS: TXx9: Fix spi-baseclk value
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=fcc152f3bf55cec61167b173774cbf717b0ff5e4;p=openwrt%2Fstaging%2Fblogic.git

MIPS: TXx9: Fix spi-baseclk value

TXx9 SPI bit rate is calculated by:
	fBR = fSPI / 2 / (n + 1)
	(fSPI is SPI master clock freq, i.e. imbusclk freq.)
So use imbus_clk / 2 as a spi-baseclk.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index dfe4720ac82e..e10184c1b3e1 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -85,7 +85,7 @@ int txx9_ccfg_toeon __initdata = 1;
 struct clk *clk_get(struct device *dev, const char *id)
 {
 	if (!strcmp(id, "spi-baseclk"))
-		return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 4);
+		return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 2);
 	if (!strcmp(id, "imbus_clk"))
 		return (struct clk *)((unsigned long)txx9_gbus_clock / 2);
 	return ERR_PTR(-ENOENT);