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, u8 cgr_val,
  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, 0x3, 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, 0x3, 0, &imx_ccm_lock, share_count);
  67 }
  68
  69 static inline struct clk *imx_clk_gate2_cgr(const char *name, const char *parent,
  70                 void __iomem *reg, u8 shift, u8 cgr_val)
  71 {
  72         return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
  73                         shift, cgr_val, 0, &imx_ccm_lock, NULL);
  74 }
  75
  76 struct clk *imx_clk_pfd(const char *name, const char *parent_name,
  77                 void __iomem *reg, u8 idx);
  78
  79 struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
  80                                  void __iomem *reg, u8 shift, u8 width,
  81                                  void __iomem *busy_reg, u8 busy_shift);
  82
  83 struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
  84                              u8 width, void __iomem *busy_reg, u8 busy_shift,
  85                              const char **parent_names, int num_parents);
  86
  87 struct clk *imx_clk_fixup_divider(const char *name, const char *parent,
  88                                   void __iomem *reg, u8 shift, u8 width,
  89                                   void (*fixup)(u32 *val));
  90
  91 struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg,
  92                               u8 shift, u8 width, const char **parents,
  93                               int num_parents, void (*fixup)(u32 *val));
  94
  95 static inline struct clk *imx_clk_fixed(const char *name, int rate)
  96 {
  97         return clk_register_fixed_rate(NULL, name, NULL, 0, rate);
  98 }
  99
 100 static inline struct clk *imx_clk_divider(const char *name, const char *parent,
 101                 void __iomem *reg, u8 shift, u8 width)
 102 {
 103         return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
 104                         reg, shift, width, 0, &imx_ccm_lock);
 105 }
 106
 107 static inline struct clk *imx_clk_divider_flags(const char *name,
 108                 const char *parent, void __iomem *reg, u8 shift, u8 width,
 109                 unsigned long flags)
 110 {
 111         return clk_register_divider(NULL, name, parent, flags,
 112                         reg, shift, width, 0, &imx_ccm_lock);
 113 }
 114
 115 static inline struct clk *imx_clk_gate(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, 0, &imx_ccm_lock);
 120 }
 121
 122 static inline struct clk *imx_clk_gate_dis(const char *name, const char *parent,
 123                 void __iomem *reg, u8 shift)
 124 {
 125         return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
 126                         shift, CLK_GATE_SET_TO_DISABLE, &imx_ccm_lock);
 127 }
 128
 129 static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg,
 130                 u8 shift, u8 width, const char **parents, int num_parents)
 131 {
 132         return clk_register_mux(NULL, name, parents, num_parents,
 133                         CLK_SET_RATE_NO_REPARENT, reg, shift,
 134                         width, 0, &imx_ccm_lock);
 135 }
 136
 137 static inline struct clk *imx_clk_mux_flags(const char *name,
 138                 void __iomem *reg, u8 shift, u8 width, const char **parents,
 139                 int num_parents, unsigned long flags)
 140 {
 141         return clk_register_mux(NULL, name, parents, num_parents,
 142                         flags | CLK_SET_RATE_NO_REPARENT, reg, shift, width, 0,
 143                         &imx_ccm_lock);
 144 }
 145
 146 static inline struct clk *imx_clk_fixed_factor(const char *name,
 147                 const char *parent, unsigned int mult, unsigned int div)
 148 {
 149         return clk_register_fixed_factor(NULL, name, parent,
 150                         CLK_SET_RATE_PARENT, mult, div);
 151 }
 152
 153 struct clk *imx_clk_cpu(const char *name, const char *parent_name,
 154                 struct clk *div, struct clk *mux, struct clk *pll,
 155                 struct clk *step);
 156
 157 #endif