ARM i.MX53: Some bug fix about MX53 MSL code

1. pll_base address should return right value
2. uart parent clk is from pll3

Signed-off-by: Yong Shen <yong.shen@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 24 insertions, 1 deletions

diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c
index ba9432c..b21bc47 100644
--- a/arch/arm/mach-mx5/clock-mx51-mx53.c
+++ b/arch/arm/mach-mx5/clock-mx51-mx53.c
@@ -127,7 +127,7 @@ static inline u32 _get_mux(struct clk *parent, struct clk *m0,
 	return -EINVAL;
 }
 
-static inline void __iomem *_get_pll_base(struct clk *pll)
+static inline void __iomem *_mx51_get_pll_base(struct clk *pll)
 {
 	if (pll == &pll1_main_clk)
 		return MX51_DPLL1_BASE;
@@ -135,6 +135,20 @@ static inline void __iomem *_get_pll_base(struct clk *pll)
 		return MX51_DPLL2_BASE;
 	else if (pll == &pll3_sw_clk)
 		return MX51_DPLL3_BASE;
+	else
+		BUG();
+
+	return NULL;
+}
+
+static inline void __iomem *_mx53_get_pll_base(struct clk *pll)
+{
+	if (pll == &pll1_main_clk)
+		return MX53_DPLL1_BASE;
+	else if (pll == &pll2_sw_clk)
+		return MX53_DPLL2_BASE;
+	else if (pll == &pll3_sw_clk)
+		return MX53_DPLL3_BASE;
 	else if (pll == &mx53_pll4_sw_clk)
 		return MX53_DPLL4_BASE;
 	else
@@ -143,6 +157,14 @@ static inline void __iomem *_get_pll_base(struct clk *pll)
 	return NULL;
 }
 
+static inline void __iomem *_get_pll_base(struct clk *pll)
+{
+	if (cpu_is_mx51())
+		return _mx51_get_pll_base(pll);
+	else
+		return _mx53_get_pll_base(pll);
+}
+
 static unsigned long clk_pll_get_rate(struct clk *clk)
 {
 	long mfi, mfn, mfd, pdf, ref_clk, mfn_abs;
@@ -1341,6 +1363,7 @@ int __init mx51_clocks_init(unsigned long ckil, unsigned long osc,
 
 	clk_tree_init();
 
+	clk_set_parent(&uart_root_clk, &pll3_sw_clk);
 	clk_enable(&cpu_clk);
 	clk_enable(&main_bus_clk);