ENGR00159982-1 [MX6] : Fix FEC get clock rate function.

- The clock formula has error, fix the get clock rate
  for FEC module.

Signed-off-by: Fugang Duan  <B38611@freescale.com>

diff --git a/arch/arm/mach-mx6/clock.c b/arch/arm/mach-mx6/clock.c
index f5c7ba08af24fc6b554302cfd4276412de7db9f5..a0db56dca5f722e3c257c1b9573085fbdb5a0384 100644 (file)
--- a/arch/arm/mach-mx6/clock.c
+++ b/arch/arm/mach-mx6/clock.c
@@ -3394,7 +3394,22 @@ static unsigned long _clk_enet_get_rate(struct clk *clk)
        div = (__raw_readl(PLL8_ENET_BASE_ADDR))
                & ANADIG_PLL_ENET_DIV_SELECT_MASK;
 
-       return 500000000 / (div + 1);
+       switch (div) {
+       case 0:
+               div = 20;
+               break;
+       case 1:
+               div = 10;
+               break;
+       case 3:
+               div = 5;
+               break;
+       case 4:
+               div = 4;
+               break;
+       }
+
+       return 500000000 / div;
 }
 
 static struct clk enet_clk[] = {