| Mikael Starvik | 51533b6 | 2005-07-27 11:44:44 -0700 | [diff] [blame] | 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 | |
| 29 | extern __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 | |
| 39 | extern __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 */ |