[PATCH 7/9] ARM: zynq: clk: add pll type

[Steffen Trumtrar]

Signed-off-by: Steffen Trumtrar <s.trumt...@pengutronix.de>
---
 arch/arm/mach-zynq/clk-zynq7000.c | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-zynq/clk-zynq7000.c 
b/arch/arm/mach-zynq/clk-zynq7000.c
index 5a8a12a..0d3c3a8 100644
--- a/arch/arm/mach-zynq/clk-zynq7000.c
+++ b/arch/arm/mach-zynq/clk-zynq7000.c
@@ -33,10 +33,21 @@ enum zynq_clks {
        cpu_clk, cpu_6x4x, cpu_3x2x, cpu_2x, cpu_1x, clks_max
 };
 
+enum zynq_pll_type {
+       ZYNQ_PLL_ARM,
+       ZYNQ_PLL_DDR,
+       ZYNQ_PLL_IO,
+};
+
+#define PLL_ARM_LOCK   (1 << 0)
+#define PLL_DDR_LOCK   (1 << 1)
+#define PLL_IO_LOCK    (1 << 2)
+
 static struct clk *clks[clks_max];
 
 struct zynq_pll_clk {
        struct clk      clk;
+       u32             pll_lock;
        void __iomem    *pll_ctrl;
 };
 
@@ -51,11 +62,19 @@ static unsigned long zynq_pll_recalc_rate(struct clk *clk,
        return parent_rate * PLL_CTRL_FDIV(readl(pll->pll_ctrl));
 }
 
+static int zynq_pll_enable(struct clk *clk)
+{
+       return 0;
+}
+
 static struct clk_ops zynq_pll_clk_ops = {
        .recalc_rate = zynq_pll_recalc_rate,
+       .enable = zynq_pll_enable,
 };
 
-static inline struct clk *zynq_pll_clk(const char *name, void __iomem 
*pll_ctrl)
+static inline struct clk *zynq_pll_clk(enum zynq_pll_type type,
+                                      const char *name,
+                                      void __iomem *pll_ctrl)
 {
        static const char *pll_parent = "ps_clk";
        struct zynq_pll_clk *pll;
@@ -68,6 +87,18 @@ static inline struct clk *zynq_pll_clk(const char *name, 
void __iomem *pll_ctrl)
        pll->clk.parent_names   = &pll_parent;
        pll->clk.num_parents    = 1;
 
+       switch(type) {
+       case ZYNQ_PLL_ARM:
+               pll->pll_lock = PLL_ARM_LOCK;
+               break;
+       case ZYNQ_PLL_DDR:
+               pll->pll_lock = PLL_DDR_LOCK;
+               break;
+       case ZYNQ_PLL_IO:
+               pll->pll_lock = PLL_IO_LOCK;
+               break;
+       }
+
        ret = clk_register(&pll->clk);
        if (ret) {
                free(pll);
-- 
1.8.2.rc2


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox