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-rw-r--r--arch/arm/mach-tcc8k/clock.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/arm/mach-tcc8k/clock.c b/arch/arm/mach-tcc8k/clock.c
index 8d8c99f89558..e7cdae5c77a4 100644
--- a/arch/arm/mach-tcc8k/clock.c
+++ b/arch/arm/mach-tcc8k/clock.c
@@ -308,10 +308,17 @@ static unsigned long get_rate_sys(struct clk *clk)
static unsigned long get_rate_bus(struct clk *clk)
{
- unsigned int div;
+ unsigned int reg, sdiv, bdiv, rate;
- div = (__raw_readl(CKC_BASE + CLKCTRL_OFFS) >> 4) & 0xff;
- return get_rate_sys(clk) / (div + 1);
+ reg = __raw_readl(CKC_BASE + CLKCTRL_OFFS);
+ rate = get_rate_sys(clk);
+ sdiv = (reg >> 20) & 3;
+ if (sdiv)
+ rate /= sdiv + 1;
+ bdiv = (reg >> 4) & 0xff;
+ if (bdiv)
+ rate /= bdiv + 1;
+ return rate;
}
static unsigned long get_rate_cpu(struct clk *clk)