131 lines
3.2 KiB
C
131 lines
3.2 KiB
C
/*
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* linux/include/asm-arm/arch-ebsa285/hardware.h
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*
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* Copyright (C) 1998-1999 Russell King.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This file contains the hardware definitions of the EBSA-285.
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*/
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#ifndef __ASM_ARCH_HARDWARE_H
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#define __ASM_ARCH_HARDWARE_H
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#include <asm/arch/memory.h>
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#ifdef CONFIG_ARCH_FOOTBRIDGE
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/* Virtual Physical Size
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* 0xff800000 0x40000000 1MB X-Bus
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* 0xff000000 0x7c000000 1MB PCI I/O space
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* 0xfe000000 0x42000000 1MB CSR
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* 0xfd000000 0x78000000 1MB Outbound write flush (not supported)
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* 0xfc000000 0x79000000 1MB PCI IACK/special space
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* 0xfb000000 0x7a000000 16MB PCI Config type 1
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* 0xfa000000 0x7b000000 16MB PCI Config type 0
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* 0xf9000000 0x50000000 1MB Cache flush
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* 0xf0000000 0x80000000 16MB ISA memory
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*/
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#define XBUS_SIZE 0x00100000
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#define XBUS_BASE 0xff800000
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#define PCIO_SIZE 0x00100000
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#define PCIO_BASE 0xff000000
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#define ARMCSR_SIZE 0x00100000
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#define ARMCSR_BASE 0xfe000000
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#define WFLUSH_SIZE 0x00100000
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#define WFLUSH_BASE 0xfd000000
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#define PCIIACK_SIZE 0x00100000
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#define PCIIACK_BASE 0xfc000000
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#define PCICFG1_SIZE 0x01000000
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#define PCICFG1_BASE 0xfb000000
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#define PCICFG0_SIZE 0x01000000
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#define PCICFG0_BASE 0xfa000000
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#define PCIMEM_SIZE 0x01000000
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#define PCIMEM_BASE 0xf0000000
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#elif defined(CONFIG_ARCH_CO285)
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/*
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* This is the COEBSA285 cut-down mapping
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*/
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#define PCIMEM_SIZE 0x80000000
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#define PCIMEM_BASE 0x80000000
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#define WFLUSH_SIZE 0x01000000
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#define WFLUSH_BASE 0x7d000000
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#define ARMCSR_SIZE 0x00100000
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#define ARMCSR_BASE 0x7cf00000
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#define XBUS_SIZE 0x00020000
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#define XBUS_BASE 0x7cee0000
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#define PCIO_SIZE 0x00010000
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#define PCIO_BASE 0x7ced0000
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#else
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#error "Undefined footbridge architecture"
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#endif
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#define XBUS_LEDS ((volatile unsigned char *)(XBUS_BASE + 0x12000))
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#define XBUS_LED_AMBER (1 << 0)
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#define XBUS_LED_GREEN (1 << 1)
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#define XBUS_LED_RED (1 << 2)
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#define XBUS_LED_TOGGLE (1 << 8)
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#define XBUS_SWITCH ((volatile unsigned char *)(XBUS_BASE + 0x12000))
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#define XBUS_SWITCH_SWITCH ((*XBUS_SWITCH) & 15)
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#define XBUS_SWITCH_J17_13 ((*XBUS_SWITCH) & (1 << 4))
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#define XBUS_SWITCH_J17_11 ((*XBUS_SWITCH) & (1 << 5))
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#define XBUS_SWITCH_J17_9 ((*XBUS_SWITCH) & (1 << 6))
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#define UNCACHEABLE_ADDR (ARMCSR_BASE + 0x108)
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/* PIC irq control */
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#define PIC_LO 0x20
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#define PIC_MASK_LO 0x21
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#define PIC_HI 0xA0
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#define PIC_MASK_HI 0xA1
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/* GPIO pins */
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#define GPIO_CCLK 0x800
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#define GPIO_DSCLK 0x400
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#define GPIO_E2CLK 0x200
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#define GPIO_IOLOAD 0x100
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#define GPIO_RED_LED 0x080
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#define GPIO_WDTIMER 0x040
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#define GPIO_DATA 0x020
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#define GPIO_IOCLK 0x010
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#define GPIO_DONE 0x008
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#define GPIO_FAN 0x004
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#define GPIO_GREEN_LED 0x002
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#define GPIO_RESET 0x001
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/* CPLD pins */
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#define CPLD_DS_ENABLE 8
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#define CPLD_7111_DISABLE 4
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#define CPLD_UNMUTE 2
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#define CPLD_FLASH_WR_ENABLE 1
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#ifndef __ASSEMBLY__
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extern void gpio_modify_op(int mask, int set);
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extern void gpio_modify_io(int mask, int in);
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extern int gpio_read(void);
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extern void cpld_modify(int mask, int set);
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#endif
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#define pcibios_assign_all_busses() 1
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#define PCIBIOS_MIN_IO 0x1000
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#define PCIBIOS_MIN_MEM 0x81000000
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#endif
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