arch/arm/mach-footbridge/include/mach/hardware.h

   1 /*
   2  *  arch/arm/mach-footbridge/include/mach/hardware.h
   3  *
   4  *  Copyright (C) 1998-1999 Russell King.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  *  This file contains the hardware definitions of the EBSA-285.
  11  */
  12 #ifndef __ASM_ARCH_HARDWARE_H
  13 #define __ASM_ARCH_HARDWARE_H
  14
  15 /*   Virtual      Physical      Size
  16  * 0xff800000   0x40000000      1MB     X-Bus
  17  * 0xff000000   0x7c000000      1MB     PCI I/O space
  18  * 0xfe000000   0x42000000      1MB     CSR
  19  * 0xfd000000   0x78000000      1MB     Outbound write flush (not supported)
  20  * 0xfc000000   0x79000000      1MB     PCI IACK/special space
  21  * 0xfb000000   0x7a000000      16MB    PCI Config type 1
  22  * 0xfa000000   0x7b000000      16MB    PCI Config type 0
  23  * 0xf9000000   0x50000000      1MB     Cache flush
  24  * 0xf0000000   0x80000000      16MB    ISA memory
  25  */
  26
  27 #ifdef CONFIG_MMU
  28 #define MMU_IO(a, b)    (a)
  29 #else
  30 #define MMU_IO(a, b)    (b)
  31 #endif
  32
  33 #define XBUS_SIZE               0x00100000
  34 #define XBUS_BASE               MMU_IO(0xff800000, 0x40000000)
  35
  36 #define ARMCSR_SIZE             0x00100000
  37 #define ARMCSR_BASE             MMU_IO(0xfe000000, 0x42000000)
  38
  39 #define WFLUSH_SIZE             0x00100000
  40 #define WFLUSH_BASE             MMU_IO(0xfd000000, 0x78000000)
  41
  42 #define PCIIACK_SIZE            0x00100000
  43 #define PCIIACK_BASE            MMU_IO(0xfc000000, 0x79000000)
  44
  45 #define PCICFG1_SIZE            0x01000000
  46 #define PCICFG1_BASE            MMU_IO(0xfb000000, 0x7a000000)
  47
  48 #define PCICFG0_SIZE            0x01000000
  49 #define PCICFG0_BASE            MMU_IO(0xfa000000, 0x7b000000)
  50
  51 #define PCIMEM_SIZE             0x01000000
  52 #define PCIMEM_BASE             MMU_IO(0xf0000000, 0x80000000)
  53
  54 #define XBUS_LEDS               ((volatile unsigned char *)(XBUS_BASE + 0x12000))
  55 #define XBUS_LED_AMBER          (1 << 0)
  56 #define XBUS_LED_GREEN          (1 << 1)
  57 #define XBUS_LED_RED            (1 << 2)
  58 #define XBUS_LED_TOGGLE         (1 << 8)
  59
  60 #define XBUS_SWITCH             ((volatile unsigned char *)(XBUS_BASE + 0x12000))
  61 #define XBUS_SWITCH_SWITCH      ((*XBUS_SWITCH) & 15)
  62 #define XBUS_SWITCH_J17_13      ((*XBUS_SWITCH) & (1 << 4))
  63 #define XBUS_SWITCH_J17_11      ((*XBUS_SWITCH) & (1 << 5))
  64 #define XBUS_SWITCH_J17_9       ((*XBUS_SWITCH) & (1 << 6))
  65
  66 #define UNCACHEABLE_ADDR        (ARMCSR_BASE + 0x108)
  67
  68
  69 /* PIC irq control */
  70 #define PIC_LO                  0x20
  71 #define PIC_MASK_LO             0x21
  72 #define PIC_HI                  0xA0
  73 #define PIC_MASK_HI             0xA1
  74
  75 /* GPIO pins */
  76 #define GPIO_CCLK               0x800
  77 #define GPIO_DSCLK              0x400
  78 #define GPIO_E2CLK              0x200
  79 #define GPIO_IOLOAD             0x100
  80 #define GPIO_RED_LED            0x080
  81 #define GPIO_WDTIMER            0x040
  82 #define GPIO_DATA               0x020
  83 #define GPIO_IOCLK              0x010
  84 #define GPIO_DONE               0x008
  85 #define GPIO_FAN                0x004
  86 #define GPIO_GREEN_LED          0x002
  87 #define GPIO_RESET              0x001
  88
  89 /* CPLD pins */
  90 #define CPLD_DS_ENABLE          8
  91 #define CPLD_7111_DISABLE       4
  92 #define CPLD_UNMUTE             2
  93 #define CPLD_FLASH_WR_ENABLE    1
  94
  95 #ifndef __ASSEMBLY__
  96 extern spinlock_t nw_gpio_lock;
  97 extern void nw_gpio_modify_op(unsigned int mask, unsigned int set);
  98 extern void nw_gpio_modify_io(unsigned int mask, unsigned int in);
  99 extern unsigned int nw_gpio_read(void);
 100 extern void nw_cpld_modify(unsigned int mask, unsigned int set);
 101 #endif
 102
 103 #endif