arch/arm/mach-lpc32xx/common.h

   1 /*
   2  * arch/arm/mach-lpc32xx/common.h
   3  *
   4  * Author: Kevin Wells <kevin.wells@nxp.com>
   5  *
   6  * Copyright (C) 2009-2010 NXP Semiconductors
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18
  19 #ifndef __LPC32XX_COMMON_H
  20 #define __LPC32XX_COMMON_H
  21
  22 #include <linux/platform_device.h>
  23
  24 /*
  25  * Arch specific platform device structures
  26  */
  27 extern struct platform_device lpc32xx_watchdog_device;
  28 extern struct platform_device lpc32xx_i2c0_device;
  29 extern struct platform_device lpc32xx_i2c1_device;
  30 extern struct platform_device lpc32xx_i2c2_device;
  31
  32 /*
  33  * Other arch specific structures and functions
  34  */
  35 extern struct sys_timer lpc32xx_timer;
  36 extern void __init lpc32xx_init_irq(void);
  37 extern void __init lpc32xx_map_io(void);
  38 extern void __init lpc32xx_serial_init(void);
  39 extern void __init lpc32xx_gpio_init(void);
  40
  41 /*
  42  * Structure used for setting up and querying the PLLS
  43  */
  44 struct clk_pll_setup {
  45         int analog_on;
  46         int cco_bypass_b15;
  47         int direct_output_b14;
  48         int fdbk_div_ctrl_b13;
  49         int pll_p;
  50         int pll_n;
  51         u32 pll_m;
  52 };
  53
  54 extern int clk_is_sysclk_mainosc(void);
  55 extern u32 clk_check_pll_setup(u32 ifreq, struct clk_pll_setup *pllsetup);
  56 extern u32 clk_get_pllrate_from_reg(u32 inputclk, u32 regval);
  57 extern u32 clk_get_pclk_div(void);
  58
  59 /*
  60  * Returns the LPC32xx unique 128-bit chip ID
  61  */
  62 extern void lpc32xx_get_uid(u32 devid[4]);
  63
  64 extern void lpc32xx_watchdog_reset(void);
  65 extern u32 lpc32xx_return_iram_size(void);
  66
  67 /*
  68  * Pointers used for sizing and copying suspend function data
  69  */
  70 extern int lpc32xx_sys_suspend(void);
  71 extern int lpc32xx_sys_suspend_sz;
  72
  73 #endif