| /* | |
| * linux/include/asm-cris/ide.h | |
| * | |
| * Copyright (C) 2000-2004 Axis Communications AB | |
| * | |
| * Authors: Bjorn Wesen, Mikael Starvik | |
| * | |
| */ | |
| /* | |
| * This file contains the ETRAX FS specific IDE code. | |
| */ | |
| #ifndef __ASMCRIS_IDE_H | |
| #define __ASMCRIS_IDE_H | |
| #ifdef __KERNEL__ | |
| #include <asm/arch/hwregs/intr_vect.h> | |
| #include <asm/arch/hwregs/ata_defs.h> | |
| #include <asm/io.h> | |
| #include <asm-generic/ide_iops.h> | |
| /* ETRAX FS can support 4 IDE busses on the same pins (serialized) */ | |
| #define MAX_HWIFS 4 | |
| static inline int ide_default_irq(unsigned long base) | |
| { | |
| /* all IDE busses share the same IRQ, | |
| * this has the side-effect that ide-probe.c will cluster our 4 interfaces | |
| * together in a hwgroup, and will serialize accesses. this is good, because | |
| * we can't access more than one interface at the same time on ETRAX100. | |
| */ | |
| return ATA_INTR_VECT; | |
| } | |
| static inline unsigned long ide_default_io_base(int index) | |
| { | |
| reg_ata_rw_ctrl2 ctrl2 = {.sel = index}; | |
| /* we have no real I/O base address per interface, since all go through the | |
| * same register. but in a bitfield in that register, we have the i/f number. | |
| * so we can use the io_base to remember that bitfield. | |
| */ | |
| ctrl2.sel = index; | |
| return REG_TYPE_CONV(unsigned long, reg_ata_rw_ctrl2, ctrl2); | |
| } | |
| /* some configuration options we don't need */ | |
| #undef SUPPORT_VLB_SYNC | |
| #define SUPPORT_VLB_SYNC 0 | |
| #define IDE_ARCH_ACK_INTR | |
| #define ide_ack_intr(hwif) (hwif)->hw.ack_intr(hwif) | |
| #endif /* __KERNEL__ */ | |
| #endif /* __ASMCRIS_IDE_H */ |