arch/arm/mach-at91/clock.h

   1 /*
   2  * linux/arch/arm/mach-at91/clock.h
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #include <linux/clkdev.h>
  10
  11 #define CLK_TYPE_PRIMARY        0x1
  12 #define CLK_TYPE_PLL            0x2
  13 #define CLK_TYPE_PROGRAMMABLE   0x4
  14 #define CLK_TYPE_PERIPHERAL     0x8
  15 #define CLK_TYPE_SYSTEM         0x10
  16
  17
  18 struct clk {
  19         struct list_head node;
  20         const char      *name;          /* unique clock name */
  21         struct clk_lookup cl;
  22         unsigned long   rate_hz;
  23         unsigned        div;            /* parent clock divider */
  24         struct clk      *parent;
  25         unsigned        pid;            /* peripheral ID */
  26         u32             pmc_mask;
  27         void            (*mode)(struct clk *, int);
  28         unsigned        id:3;           /* PCK0..4, or 32k/main/a/b */
  29         unsigned        type;           /* clock type */
  30         u16             users;
  31 };
  32
  33
  34 extern int __init clk_register(struct clk *clk);
  35 extern struct clk mck;
  36 extern struct clk utmi_clk;
  37
  38 #define CLKDEV_CON_ID(_id, _clk)                        \
  39         {                                               \
  40                 .con_id = _id,                          \
  41                 .clk = _clk,                            \
  42         }
  43
  44 #define CLKDEV_CON_DEV_ID(_con_id, _dev_id, _clk)       \
  45         {                                               \
  46                 .con_id = _con_id,                      \
  47                 .dev_id = _dev_id,                      \
  48                 .clk = _clk,                            \
  49         }