| /* |
| * 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 */ |
