From mboxrd@z Thu Jan 1 00:00:00 1970 From: Atsushi Nemoto Subject: [PATCH 1/2] txx9: Fix spi-baseclk value Date: Thu, 3 Sep 2009 22:59:00 +0900 Message-ID: <1251986341-16938-1-git-send-email-anemo@mba.ocn.ne.jp> Cc: ralf@linux-mips.org, spi-devel-general@lists.sourceforge.net, david-b@pacbell.net To: linux-mips@linux-mips.org Return-path: Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org List-Id: linux-spi.vger.kernel.org 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 --- arch/mips/txx9/generic/setup.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c index a205e2b..b2613c1 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); -- 1.5.6.5