[PATCH 1/2] txx9: Fix spi-baseclk value
From: Atsushi Nemoto <hidden>
Date: 2009-09-03 13:59:00
Also in:
linux-spi
Subsystem:
mips, the rest · Maintainers:
Thomas Bogendoerfer, Linus Torvalds
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 <redacted> --- 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