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 <blogic@openwrt.org>
   7  */
   8 #ifndef _LANTIQ_H__
   9 #define _LANTIQ_H__
  10
  11 #include <linux/irq.h>
  12
  13 /* generic reg access functions */
  14 #define ltq_r32(reg)            __raw_readl(reg)
  15 #define ltq_w32(val, reg)       __raw_writel(val, reg)
  16 #define ltq_w32_mask(clear, set, reg)   \
  17         ltq_w32((ltq_r32(reg) & ~(clear)) | (set), reg)
  18 #define ltq_r8(reg)             __raw_readb(reg)
  19 #define ltq_w8(val, reg)        __raw_writeb(val, reg)
  20
  21 /* register access macros for EBU and CGU */
  22 #define ltq_ebu_w32(x, y)       ltq_w32((x), ltq_ebu_membase + (y))
  23 #define ltq_ebu_r32(x)          ltq_r32(ltq_ebu_membase + (x))
  24 #define ltq_cgu_w32(x, y)       ltq_w32((x), ltq_cgu_membase + (y))
  25 #define ltq_cgu_r32(x)          ltq_r32(ltq_cgu_membase + (x))
  26
  27 extern __iomem void *ltq_ebu_membase;
  28 extern __iomem void *ltq_cgu_membase;
  29
  30 extern unsigned int ltq_get_cpu_ver(void);
  31 extern unsigned int ltq_get_soc_type(void);
  32
  33 /* clock speeds */
  34 #define CLOCK_60M       60000000
  35 #define CLOCK_83M       83333333
  36 #define CLOCK_111M      111111111
  37 #define CLOCK_133M      133333333
  38 #define CLOCK_167M      166666667
  39 #define CLOCK_200M      200000000
  40 #define CLOCK_266M      266666666
  41 #define CLOCK_333M      333333333
  42 #define CLOCK_400M      400000000
  43
  44 /* spinlock all ebu i/o */
  45 extern spinlock_t ebu_lock;
  46
  47 /* some irq helpers */
  48 extern void ltq_disable_irq(struct irq_data *data);
  49 extern void ltq_mask_and_ack_irq(struct irq_data *data);
  50 extern void ltq_enable_irq(struct irq_data *data);
  51
  52 /* find out what caused the last cpu reset */
  53 extern int ltq_reset_cause(void);
  54 #define LTQ_RST_CAUSE_WDTRST    0x20
  55
  56 #define IOPORT_RESOURCE_START   0x10000000
  57 #define IOPORT_RESOURCE_END     0xffffffff
  58 #define IOMEM_RESOURCE_START    0x10000000
  59 #define IOMEM_RESOURCE_END      0xffffffff
  60 #define LTQ_FLASH_START         0x10000000
  61 #define LTQ_FLASH_MAX           0x04000000
  62
  63 #endif