1/* 2 * Copyright (C) 1994-1996 Linus Torvalds & authors 3 * 4 * This file contains the powerpc architecture specific IDE code. 5 */ 6#ifndef _ASM_POWERPC_IDE_H 7#define _ASM_POWERPC_IDE_H 8 9#ifdef __KERNEL__ 10 11#ifndef __powerpc64__ 12#include <linux/sched.h> 13#include <asm/mpc8xx.h> 14#endif 15#include <asm/io.h> 16 17#ifndef MAX_HWIFS 18#ifdef __powerpc64__ 19#define MAX_HWIFS 10 20#else 21#define MAX_HWIFS 8 22#endif 23#endif 24 25#define __ide_mm_insw(p, a, c) readsw((void __iomem *)(p), (a), (c)) 26#define __ide_mm_insl(p, a, c) readsl((void __iomem *)(p), (a), (c)) 27#define __ide_mm_outsw(p, a, c) writesw((void __iomem *)(p), (a), (c)) 28#define __ide_mm_outsl(p, a, c) writesl((void __iomem *)(p), (a), (c)) 29 30#ifndef __powerpc64__ 31#include <linux/hdreg.h> 32#include <linux/ioport.h> 33 34struct ide_machdep_calls { 35 int (*default_irq)(unsigned long base); 36 unsigned long (*default_io_base)(int index); 37 void (*ide_init_hwif)(hw_regs_t *hw, 38 unsigned long data_port, 39 unsigned long ctrl_port, 40 int *irq); 41}; 42 43extern struct ide_machdep_calls ppc_ide_md; 44 45#undef SUPPORT_SLOW_DATA_PORTS 46#define SUPPORT_SLOW_DATA_PORTS 0 47 48#define IDE_ARCH_OBSOLETE_DEFAULTS 49 50static __inline__ int ide_default_irq(unsigned long base) 51{ 52 if (ppc_ide_md.default_irq) 53 return ppc_ide_md.default_irq(base); 54 return 0; 55} 56 57static __inline__ unsigned long ide_default_io_base(int index) 58{ 59 if (ppc_ide_md.default_io_base) 60 return ppc_ide_md.default_io_base(index); 61 return 0; 62} 63 64#ifdef CONFIG_PCI 65#define ide_init_default_irq(base) (0) 66#else 67#define ide_init_default_irq(base) ide_default_irq(base) 68#endif 69 70#if (defined CONFIG_APUS || defined CONFIG_BLK_DEV_MPC8xx_IDE ) 71#define IDE_ARCH_ACK_INTR 1 72#define ide_ack_intr(hwif) (hwif->hw.ack_intr ? hwif->hw.ack_intr(hwif) : 1) 73#endif 74 75#endif /* __powerpc64__ */ 76 77#define IDE_ARCH_OBSOLETE_INIT 78#define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */ 79 80#endif /* __KERNEL__ */ 81 82#endif /* _ASM_POWERPC_IDE_H */ 83