1/* 2 * linux/include/asm-cris/ide.h 3 * 4 * Copyright (C) 2000-2004 Axis Communications AB 5 * 6 * Authors: Bjorn Wesen, Mikael Starvik 7 * 8 */ 9 10/* 11 * This file contains the ETRAX FS specific IDE code. 12 */ 13 14#ifndef __ASMCRIS_IDE_H 15#define __ASMCRIS_IDE_H 16 17#ifdef __KERNEL__ 18 19#include <asm/arch/hwregs/intr_vect.h> 20#include <asm/arch/hwregs/ata_defs.h> 21#include <asm/io.h> 22#include <asm-generic/ide_iops.h> 23 24 25/* ETRAX FS can support 4 IDE busses on the same pins (serialized) */ 26 27#define MAX_HWIFS 4 28 29static inline int ide_default_irq(unsigned long base) 30{ 31 /* all IDE busses share the same IRQ, 32 * this has the side-effect that ide-probe.c will cluster our 4 interfaces 33 * together in a hwgroup, and will serialize accesses. this is good, because 34 * we can't access more than one interface at the same time on ETRAX100. 35 */ 36 return ATA_INTR_VECT; 37} 38 39static inline unsigned long ide_default_io_base(int index) 40{ 41 reg_ata_rw_ctrl2 ctrl2 = {.sel = index}; 42 /* we have no real I/O base address per interface, since all go through the 43 * same register. but in a bitfield in that register, we have the i/f number. 44 * so we can use the io_base to remember that bitfield. 45 */ 46 ctrl2.sel = index; 47 48 return REG_TYPE_CONV(unsigned long, reg_ata_rw_ctrl2, ctrl2); 49} 50 51/* some configuration options we don't need */ 52 53#undef SUPPORT_VLB_SYNC 54#define SUPPORT_VLB_SYNC 0 55 56#define IDE_ARCH_ACK_INTR 57#define ide_ack_intr(hwif) (hwif)->hw.ack_intr(hwif) 58 59#endif /* __KERNEL__ */ 60 61#endif /* __ASMCRIS_IDE_H */ 62