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/*
* linux/include/asm-ppc/ide.h
*
* Copyright (C) 1994-1996 Linus Torvalds & authors */
/*
* This file contains the ppc architecture specific IDE code.
*/
#ifndef __ASMPPC_IDE_H
#define __ASMPPC_IDE_H
#ifdef __KERNEL__
#include <linux/sched.h>
#include <asm/mpc8xx.h>
#ifndef MAX_HWIFS
#define MAX_HWIFS 8
#endif
#include <asm/hdreg.h>
#include <linux/config.h>
#include <linux/hdreg.h>
#include <linux/ioport.h>
#include <asm/io.h>
extern void __ide_mm_insw(unsigned long port, void *addr, u32 count);
extern void __ide_mm_outsw(unsigned long port, void *addr, u32 count);
extern void __ide_mm_insl(unsigned long port, void *addr, u32 count);
extern void __ide_mm_outsl(unsigned long port, void *addr, u32 count);
struct ide_machdep_calls {
int (*default_irq)(unsigned long base);
unsigned long (*default_io_base)(int index);
void (*ide_init_hwif)(hw_regs_t *hw,
unsigned long data_port,
unsigned long ctrl_port,
int *irq);
};
extern struct ide_machdep_calls ppc_ide_md;
#undef SUPPORT_SLOW_DATA_PORTS
#define SUPPORT_SLOW_DATA_PORTS 0
static __inline__ int ide_default_irq(unsigned long base)
{
if (ppc_ide_md.default_irq)
return ppc_ide_md.default_irq(base);
return 0;
}
static __inline__ unsigned long ide_default_io_base(int index)
{
if (ppc_ide_md.default_io_base)
return ppc_ide_md.default_io_base(index);
return 0;
}
/*
* This is only used for PC-style IDE controllers (e.g. as on PReP)
* or for PCI IDE devices, not for other types of IDE interface such
* as the pmac IDE interfaces.
*/
static __inline__ void ide_init_hwif_ports(hw_regs_t *hw,
unsigned long data_port,
unsigned long ctrl_port, int *irq)
{
unsigned long reg = data_port;
int i;
for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
hw->io_ports[i] = reg++;
if (ctrl_port) {
hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
} else {
hw->io_ports[IDE_CONTROL_OFFSET] =
hw->io_ports[IDE_DATA_OFFSET] + 0x206;
}
if (irq != NULL)
*irq = 0;
hw->io_ports[IDE_IRQ_OFFSET] = 0;
if (ppc_ide_md.ide_init_hwif != NULL)
ppc_ide_md.ide_init_hwif(hw, data_port, ctrl_port, irq);
}
static __inline__ void ide_init_default_hwifs(void)
{
#ifndef CONFIG_PCI
hw_regs_t hw;
int index;
unsigned long base;
for (index = 0; index < MAX_HWIFS; index++) {
base = ide_default_io_base(index);
if (base == 0)
continue;
ide_init_hwif_ports(&hw, base, 0, NULL);
hw.irq = ide_default_irq(base);
ide_register_hw(&hw, NULL);
}
#endif
}
#if (defined CONFIG_APUS || defined CONFIG_BLK_DEV_MPC8xx_IDE )
#define IDE_ARCH_ACK_INTR 1
#define ide_ack_intr(hwif) (hwif->hw.ack_intr ? hwif->hw.ack_intr(hwif) : 1)
#endif
#endif /* __KERNEL__ */
#endif /* __ASMPPC_IDE_H */
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