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

   1 /*
   2  * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
   3  * Author: Wu Zhangjin <wuzj@lemote.com>
   4  *
   5  * This program is free software; you can redistribute  it and/or modify it
   6  * under  the terms of  the GNU General  Public License as published by the
   7  * Free Software Foundation;  either version 2 of the  License, or (at your
   8  * option) any later version.
   9  *
  10  */
  11
  12 #ifndef __ASM_MACH_LOONGSON_LOONGSON_H
  13 #define __ASM_MACH_LOONGSON_LOONGSON_H
  14
  15 #include <linux/io.h>
  16 #include <linux/init.h>
  17
  18 /* there is an internal bonito64-compatiable northbridge in loongson2e/2f */
  19 #include <asm/mips-boards/bonito64.h>
  20
  21 /* loongson internal northbridge initialization */
  22 extern void bonito_irq_init(void);
  23
  24 /* machine-specific reboot/halt operation */
  25 extern void mach_prepare_reboot(void);
  26 extern void mach_prepare_shutdown(void);
  27
  28 /* environment arguments from bootloader */
  29 extern unsigned long bus_clock, cpu_clock_freq;
  30 extern unsigned long memsize, highmemsize;
  31
  32 /* loongson-specific command line, env and memory initialization */
  33 extern void __init prom_init_memory(void);
  34 extern void __init prom_init_cmdline(void);
  35 extern void __init prom_init_env(void);
  36
  37 /* irq operation functions */
  38 extern void bonito_irqdispatch(void);
  39 extern void __init bonito_irq_init(void);
  40 extern void __init set_irq_trigger_mode(void);
  41 extern void __init mach_init_irq(void);
  42 extern void mach_irq_dispatch(unsigned int pending);
  43
  44 /* PCI Configuration Registers */
  45 #define LOONGSON_PCI_ISR4C  BONITO_PCI_REG(0x4c)
  46
  47 /* PCI_Hit*_Sel_* */
  48
  49 #define LOONGSON_PCI_HIT0_SEL_L     BONITO(BONITO_REGBASE + 0x50)
  50 #define LOONGSON_PCI_HIT0_SEL_H     BONITO(BONITO_REGBASE + 0x54)
  51 #define LOONGSON_PCI_HIT1_SEL_L     BONITO(BONITO_REGBASE + 0x58)
  52 #define LOONGSON_PCI_HIT1_SEL_H     BONITO(BONITO_REGBASE + 0x5c)
  53 #define LOONGSON_PCI_HIT2_SEL_L     BONITO(BONITO_REGBASE + 0x60)
  54 #define LOONGSON_PCI_HIT2_SEL_H     BONITO(BONITO_REGBASE + 0x64)
  55
  56 /* PXArb Config & Status */
  57
  58 #define LOONGSON_PXARB_CFG      BONITO(BONITO_REGBASE + 0x68)
  59 #define LOONGSON_PXARB_STATUS       BONITO(BONITO_REGBASE + 0x6c)
  60
  61 /* loongson2-specific perf counter IRQ */
  62 #define LOONGSON2_PERFCNT_IRQ   (MIPS_CPU_IRQ_BASE + 6)
  63
  64 #endif /* __ASM_MACH_LOONGSON_LOONGSON_H */