arch/arm/mach-omap2/clock.h

   1 /*
   2  *  linux/arch/arm/mach-omap2/clock.h
   3  *
   4  *  Copyright (C) 2005-2008 Texas Instruments, Inc.
   5  *  Copyright (C) 2004-2008 Nokia Corporation
   6  *
   7  *  Contacts:
   8  *  Richard Woodruff <r-woodruff2@ti.com>
   9  *  Paul Walmsley
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H
  17 #define __ARCH_ARM_MACH_OMAP2_CLOCK_H
  18
  19 #include <asm/arch/clock.h>
  20
  21 int omap2_clk_enable(struct clk *clk);
  22 void omap2_clk_disable(struct clk *clk);
  23 long omap2_clk_round_rate(struct clk *clk, unsigned long rate);
  24 int omap2_clk_set_rate(struct clk *clk, unsigned long rate);
  25 int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent);
  26
  27 #ifdef CONFIG_OMAP_RESET_CLOCKS
  28 void omap2_clk_disable_unused(struct clk *clk);
  29 #else
  30 #define omap2_clk_disable_unused        NULL
  31 #endif
  32
  33 void omap2_clksel_recalc(struct clk *clk);
  34 void omap2_init_clksel_parent(struct clk *clk);
  35 u32 omap2_clksel_get_divisor(struct clk *clk);
  36 u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
  37                                 u32 *new_div);
  38 u32 omap2_clksel_to_divisor(struct clk *clk, u32 field_val);
  39 u32 omap2_divisor_to_clksel(struct clk *clk, u32 div);
  40 void omap2_fixed_divisor_recalc(struct clk *clk);
  41 long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate);
  42 int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
  43 u32 omap2_get_dpll_rate(struct clk *clk);
  44 int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name);
  45
  46 extern u8 cpu_mask;
  47
  48 /* clksel_rate data common to 24xx/343x */
  49 static const struct clksel_rate gpt_32k_rates[] = {
  50          { .div = 1, .val = 0, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE },
  51          { .div = 0 }
  52 };
  53
  54 static const struct clksel_rate gpt_sys_rates[] = {
  55          { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE },
  56          { .div = 0 }
  57 };
  58
  59 static const struct clksel_rate gfx_l3_rates[] = {
  60         { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_343X },
  61         { .div = 2, .val = 2, .flags = RATE_IN_24XX | RATE_IN_343X | DEFAULT_RATE },
  62         { .div = 3, .val = 3, .flags = RATE_IN_243X | RATE_IN_343X },
  63         { .div = 4, .val = 4, .flags = RATE_IN_243X | RATE_IN_343X },
  64         { .div = 0 }
  65 };
  66
  67
  68 #endif