arch/mips/include/asm/mach-lantiq/lantiq.h

   1 /*
   2  *  This program is free software; you can redistribute it and/or modify it
   3  *  under the terms of the GNU General Public License version 2 as published
   4  *  by the Free Software Foundation.
   5  *
   6  *  Copyright (C) 2010 John Crispin <john@phrozen.org>
   7  */
   8 #ifndef _LANTIQ_H__
   9 #define _LANTIQ_H__
  10
  11 #include <linux/irq.h>
  12 #include <linux/device.h>
  13 #include <linux/clk.h>
  14
  15 /* generic reg access functions */
  16 #define ltq_r32(reg)            __raw_readl(reg)
  17 #define ltq_w32(val, reg)       __raw_writel(val, reg)
  18 #define ltq_w32_mask(clear, set, reg)   \
  19         ltq_w32((ltq_r32(reg) & ~(clear)) | (set), reg)
  20 #define ltq_r8(reg)             __raw_readb(reg)
  21 #define ltq_w8(val, reg)        __raw_writeb(val, reg)
  22
  23 /* register access macros for EBU and CGU */
  24 #define ltq_ebu_w32(x, y)       ltq_w32((x), ltq_ebu_membase + (y))
  25 #define ltq_ebu_r32(x)          ltq_r32(ltq_ebu_membase + (x))
  26 #define ltq_ebu_w32_mask(x, y, z) \
  27         ltq_w32_mask(x, y, ltq_ebu_membase + (z))
  28 extern __iomem void *ltq_ebu_membase;
  29
  30 /* spinlock all ebu i/o */
  31 extern spinlock_t ebu_lock;
  32
  33 /* some irq helpers */
  34 extern void ltq_disable_irq(struct irq_data *data);
  35 extern void ltq_mask_and_ack_irq(struct irq_data *data);
  36 extern void ltq_enable_irq(struct irq_data *data);
  37 extern int ltq_eiu_get_irq(int exin);
  38
  39 /* clock handling */
  40 extern int clk_activate(struct clk *clk);
  41 extern void clk_deactivate(struct clk *clk);
  42 extern struct clk *clk_get_cpu(void);
  43 extern struct clk *clk_get_fpi(void);
  44 extern struct clk *clk_get_io(void);
  45 extern struct clk *clk_get_ppe(void);
  46
  47 /* find out what bootsource we have */
  48 extern unsigned char ltq_boot_select(void);
  49 /* find out the soc type */
  50 extern int ltq_soc_type(void);
  51
  52 #define IOPORT_RESOURCE_START   0x10000000
  53 #define IOPORT_RESOURCE_END     0xffffffff
  54 #define IOMEM_RESOURCE_START    0x10000000
  55 #define IOMEM_RESOURCE_END      0xffffffff
  56
  57 #endif