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| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2009-09-03 13:59:00 (GMT) |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-11-02 11:00:07 (GMT) |
| commit | fcc152f3bf55cec61167b173774cbf717b0ff5e4 (patch) | |
| tree | 7005fde7d87f7f93fa33a39f1cda3194ed94a632 | |
| parent | 2b5b9b786c177fa4bca1646325a1dd98c4399523 (diff) | |
| download | linux-fcc152f3bf55cec61167b173774cbf717b0ff5e4.tar.xz | |
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>
| -rw-r--r-- | 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 dfe4720..e10184c 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); |