diff options
Diffstat (limited to 'drivers/clk/mxs/clk-imx28.c')
| -rw-r--r-- | drivers/clk/mxs/clk-imx28.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index c541377838a8..a6c35010e4e5 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -53,9 +53,8 @@ static void __iomem *clkctrl; #define BP_ENET_SLEEP 31 #define BP_CLKSEQ_BYPASS_SAIF0 0 #define BP_CLKSEQ_BYPASS_SSP0 3 - -#define FRAC0_IO1 2 -#define FRAC0_IO0 3 +#define BP_FRAC0_IO1FRAC 16 +#define BP_FRAC0_IO0FRAC 24 static void __iomem *digctrl; #define DIGCTRL digctrl @@ -86,7 +85,6 @@ int mxs_saif_clkmux_select(unsigned int clkmux) static void __init clk_misc_init(void) { u32 val; - u8 frac; /* Gate off cpu clock in WFI for power saving */ writel_relaxed(1 << BP_CPU_INTERRUPT_WAIT, CPU + SET); @@ -120,16 +118,11 @@ static void __init clk_misc_init(void) /* * 480 MHz seems too high to be ssp clock source directly, * so set frac0 to get a 288 MHz ref_io0 and ref_io1. - * According to reference manual we must access frac0 bytewise. */ - frac = readb_relaxed(FRAC0 + FRAC0_IO0); - frac &= ~0x3f; - frac |= 30; - writeb_relaxed(frac, FRAC0 + FRAC0_IO0); - frac = readb_relaxed(FRAC0 + FRAC0_IO1); - frac &= ~0x3f; - frac |= 30; - writeb_relaxed(frac, FRAC0 + FRAC0_IO1); + val = readl_relaxed(FRAC0); + val &= ~((0x3f << BP_FRAC0_IO0FRAC) | (0x3f << BP_FRAC0_IO1FRAC)); + val |= (30 << BP_FRAC0_IO0FRAC) | (30 << BP_FRAC0_IO1FRAC); + writel_relaxed(val, FRAC0); } static const char *sel_cpu[] __initconst = { "ref_cpu", "ref_xtal", }; |
