diff options
Diffstat (limited to 'arch/arm/mach-mx1/clock.c')
-rw-r--r-- | arch/arm/mach-mx1/clock.c | 31 |
1 files changed, 2 insertions, 29 deletions
diff --git a/arch/arm/mach-mx1/clock.c b/arch/arm/mach-mx1/clock.c index 4bcd1ece55f5..3c464331b870 100644 --- a/arch/arm/mach-mx1/clock.c +++ b/arch/arm/mach-mx1/clock.c @@ -87,33 +87,6 @@ static int _clk_parent_set_rate(struct clk *clk, unsigned long rate) return clk->parent->set_rate(clk->parent, rate); } -/* - * get the system pll clock in Hz - * - * mfi + mfn / (mfd +1) - * f = 2 * f_ref * -------------------- - * pd + 1 - */ -static unsigned long mx1_decode_pll(unsigned int pll, u32 f_ref) -{ - unsigned long long ll; - unsigned long quot; - - u32 mfi = (pll >> 10) & 0xf; - u32 mfn = pll & 0x3ff; - u32 mfd = (pll >> 16) & 0x3ff; - u32 pd = (pll >> 26) & 0xf; - - mfi = mfi <= 5 ? 5 : mfi; - - ll = 2 * (unsigned long long)f_ref * - ((mfi << 16) + (mfn << 16) / (mfd + 1)); - quot = (pd + 1) * (1 << 16); - ll += quot / 2; - do_div(ll, quot); - return (unsigned long)ll; -} - static unsigned long clk16m_get_rate(struct clk *clk) { return 16000000; @@ -188,7 +161,7 @@ static struct clk prem_clk = { static unsigned long system_clk_get_rate(struct clk *clk) { - return mx1_decode_pll(__raw_readl(CCM_SPCTL0), + return mxc_decode_pll(__raw_readl(CCM_SPCTL0), clk_get_rate(clk->parent)); } @@ -200,7 +173,7 @@ static struct clk system_clk = { static unsigned long mcu_clk_get_rate(struct clk *clk) { - return mx1_decode_pll(__raw_readl(CCM_MPCTL0), + return mxc_decode_pll(__raw_readl(CCM_MPCTL0), clk_get_rate(clk->parent)); } |