drivers/clk/imx/clk.h

   1 #ifndef __MACH_IMX_CLK_H
   2 #define __MACH_IMX_CLK_H
   3
   4 #include <linux/spinlock.h>
   5 #include <linux/clk-provider.h>
   6
   7 extern spinlock_t imx_ccm_lock;
   8
   9 void imx_check_clocks(struct clk *clks[], unsigned int count);
  10 void imx_register_uart_clocks(struct clk ** const clks[]);
  11
  12 extern void imx_cscmr1_fixup(u32 *val);
  13
  14 enum imx_pllv1_type {
  15         IMX_PLLV1_IMX1,
  16         IMX_PLLV1_IMX21,
  17         IMX_PLLV1_IMX25,
  18         IMX_PLLV1_IMX27,
  19         IMX_PLLV1_IMX31,
  20         IMX_PLLV1_IMX35,
  21 };
  22
  23 struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name,
  24                 const char *parent, void __iomem *base);
  25
  26 struct clk *imx_clk_pllv2(const char *name, const char *parent,
  27                 void __iomem *base);
  28
  29 enum imx_pllv3_type {
  30         IMX_PLLV3_GENERIC,
  31         IMX_PLLV3_SYS,
  32         IMX_PLLV3_USB,
  33         IMX_PLLV3_USB_VF610,
  34         IMX_PLLV3_AV,
  35         IMX_PLLV3_ENET,
  36         IMX_PLLV3_ENET_IMX7,
  37 };
  38
  39 struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
  40                 const char *parent_name, void __iomem *base, u32 div_mask);
  41
  42 struct clk *clk_register_gate2(struct device *dev, const char *name,
  43                 const char *parent_name, unsigned long flags,
  44                 void __iomem *reg, u8 bit_idx,
  45                 u8 clk_gate_flags, spinlock_t *lock,
  46                 unsigned int *share_count);
  47
  48 struct clk * imx_obtain_fixed_clock(
  49                         const char *name, unsigned long rate);
  50
  51 struct clk *imx_clk_gate_exclusive(const char *name, const char *parent,
  52          void __iomem *reg, u8 shift, u32 exclusive_mask);
  53
  54 static inline struct clk *imx_clk_gate2(const char *name, const char *parent,
  55                 void __iomem *reg, u8 shift)
  56 {
  57         return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
  58                         shift, 0, &imx_ccm_lock, NULL);
  59 }
  60
  61 static inline struct clk *imx_clk_gate2_shared(const char *name,
  62                 const char *parent, void __iomem *reg, u8 shift,
  63                 unsigned int *share_count)
  64 {
  65         return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
  66                         shift, 0, &imx_ccm_lock, share_count);
  67 }
  68
  69 struct clk *imx_clk_pfd(const char *name, const char *parent_name,
  70                 void __iomem *reg, u8 idx);
  71
  72 struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
  73                                  void __iomem *reg, u8 shift, u8 width,
  74                                  void __iomem *busy_reg, u8 busy_shift);
  75
  76 struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
  77                              u8 width, void __iomem *busy_reg, u8 busy_shift,
  78                              const char **parent_names, int num_parents);
  79
  80 struct clk *imx_clk_fixup_divider(const char *name, const char *parent,
  81                                   void __iomem *reg, u8 shift, u8 width,
  82                                   void (*fixup)(u32 *val));
  83
  84 struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg,
  85                               u8 shift, u8 width, const char **parents,
  86                               int num_parents, void (*fixup)(u32 *val));
  87
  88 static inline struct clk *imx_clk_fixed(const char *name, int rate)
  89 {
  90         return clk_register_fixed_rate(NULL, name, NULL, CLK_IS_ROOT, rate);
  91 }
  92
  93 static inline struct clk *imx_clk_divider(const char *name, const char *parent,
  94                 void __iomem *reg, u8 shift, u8 width)
  95 {
  96         return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
  97                         reg, shift, width, 0, &imx_ccm_lock);
  98 }
  99
 100 static inline struct clk *imx_clk_divider_flags(const char *name,
 101                 const char *parent, void __iomem *reg, u8 shift, u8 width,
 102                 unsigned long flags)
 103 {
 104         return clk_register_divider(NULL, name, parent, flags,
 105                         reg, shift, width, 0, &imx_ccm_lock);
 106 }
 107
 108 static inline struct clk *imx_clk_gate(const char *name, const char *parent,
 109                 void __iomem *reg, u8 shift)
 110 {
 111         return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
 112                         shift, 0, &imx_ccm_lock);
 113 }
 114
 115 static inline struct clk *imx_clk_gate_dis(const char *name, const char *parent,
 116                 void __iomem *reg, u8 shift)
 117 {
 118         return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
 119                         shift, CLK_GATE_SET_TO_DISABLE, &imx_ccm_lock);
 120 }
 121
 122 static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg,
 123                 u8 shift, u8 width, const char **parents, int num_parents)
 124 {
 125         return clk_register_mux(NULL, name, parents, num_parents,
 126                         CLK_SET_RATE_NO_REPARENT, reg, shift,
 127                         width, 0, &imx_ccm_lock);
 128 }
 129
 130 static inline struct clk *imx_clk_mux_flags(const char *name,
 131                 void __iomem *reg, u8 shift, u8 width, const char **parents,
 132                 int num_parents, unsigned long flags)
 133 {
 134         return clk_register_mux(NULL, name, parents, num_parents,
 135                         flags | CLK_SET_RATE_NO_REPARENT, reg, shift, width, 0,
 136                         &imx_ccm_lock);
 137 }
 138
 139 static inline struct clk *imx_clk_fixed_factor(const char *name,
 140                 const char *parent, unsigned int mult, unsigned int div)
 141 {
 142         return clk_register_fixed_factor(NULL, name, parent,
 143                         CLK_SET_RATE_PARENT, mult, div);
 144 }
 145
 146 struct clk *imx_clk_cpu(const char *name, const char *parent_name,
 147                 struct clk *div, struct clk *mux, struct clk *pll,
 148                 struct clk *step);
 149
 150 #endif