+++ /dev/null
-/****************************************************************************/
-/*
- * linux/include/asm-m68knommu/ide.h
- *
- * Copyright (C) 1994-1996 Linus Torvalds & authors
- * Copyright (C) 2001 Lineo Inc., davidm@uclinux.org
- */
-/****************************************************************************/
-#ifndef _M68KNOMMU_IDE_H
-#define _M68KNOMMU_IDE_H
-
-#ifdef __KERNEL__
-/****************************************************************************/
-
-#include <linux/config.h>
-#include <linux/interrupt.h>
-
-#include <asm/setup.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-/****************************************************************************/
-/*
- * some coldfire specifics
- */
-
-#ifdef CONFIG_COLDFIRE
-#include <asm/coldfire.h>
-#include <asm/mcfsim.h>
-
-/*
- * Save some space, only have 1 interface
- */
-#define MAX_HWIFS 1 /* we only have one interface for now */
-
-#ifdef CONFIG_SECUREEDGEMP3
-#define MCFSIM_LOCALCS MCFSIM_CSCR4
-#else
-#define MCFSIM_LOCALCS MCFSIM_CSCR6
-#endif
-
-#endif /* CONFIG_COLDFIRE */
-
-/****************************************************************************/
-/*
- * Fix up things that may not have been provided
- */
-
-#ifndef MAX_HWIFS
-#define MAX_HWIFS 4 /* same as the other archs */
-#endif
-
-#undef SUPPORT_SLOW_DATA_PORTS
-#define SUPPORT_SLOW_DATA_PORTS 0
-
-#undef SUPPORT_VLB_SYNC
-#define SUPPORT_VLB_SYNC 0
-
-/* this definition is used only on startup .. */
-#undef HD_DATA
-#define HD_DATA NULL
-
-#define DBGIDE(fmt,a...)
-// #define DBGIDE(fmt,a...) printk(fmt, ##a)
-#define IDE_INLINE __inline__
-// #define IDE_INLINE
-
-/****************************************************************************/
-
-typedef union {
- unsigned all : 8; /* all of the bits together */
- struct {
- unsigned bit7 : 1; /* always 1 */
- unsigned lba : 1; /* using LBA instead of CHS */
- unsigned bit5 : 1; /* always 1 */
- unsigned unit : 1; /* drive select number, 0 or 1 */
- unsigned head : 4; /* always zeros here */
- } b;
-} select_t;
-
-/*
- * our list of ports/irq's for different boards
- */
-
-static struct m68k_ide_defaults {
- ide_ioreg_t base;
- int irq;
-} m68k_ide_defaults[MAX_HWIFS] = {
-#if defined(CONFIG_SECUREEDGEMP3)
- { ((ide_ioreg_t)0x30800000), 29 },
-#elif defined(CONFIG_eLIA)
- { ((ide_ioreg_t)0x30c00000), 29 },
-#else
- { ((ide_ioreg_t)0x0), 0 }
-#endif
-};
-
-/****************************************************************************/
-
-static IDE_INLINE int ide_default_irq(ide_ioreg_t base)
-{
- int i;
-
- for (i = 0; i < MAX_HWIFS; i++)
- if (m68k_ide_defaults[i].base == base)
- return(m68k_ide_defaults[i].irq);
- return 0;
-}
-
-static IDE_INLINE ide_ioreg_t ide_default_io_base(int index)
-{
- if (index >= 0 && index < MAX_HWIFS)
- return(m68k_ide_defaults[index].base);
- return 0;
-}
-
-
-/*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
-static IDE_INLINE void ide_init_hwif_ports(
- hw_regs_t *hw,
- ide_ioreg_t data_port,
- ide_ioreg_t ctrl_port,
- int *irq)
-{
- ide_ioreg_t reg = data_port;
- int i;
-
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- if (ctrl_port) {
- hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
- } else {
- hw->io_ports[IDE_CONTROL_OFFSET] = data_port + 0xe;
- }
-}
-
-#define ide_init_default_irq(base) ide_default_irq(base)
-
-static IDE_INLINE int
-ide_request_irq(
- unsigned int irq,
- void (*handler)(int, void *, struct pt_regs *),
- unsigned long flags,
- const char *device,
- void *dev_id)
-{
-#ifdef CONFIG_COLDFIRE
- mcf_autovector(irq);
-#endif
- return(request_irq(irq, handler, flags, device, dev_id));
-}
-
-
-static IDE_INLINE void
-ide_free_irq(unsigned int irq, void *dev_id)
-{
- free_irq(irq, dev_id);
-}
-
-
-static IDE_INLINE void
-ide_request_region(ide_ioreg_t from, unsigned int extent, const char *name)
-{
-}
-
-
-static IDE_INLINE void
-ide_release_region(ide_ioreg_t from, unsigned int extent)
-{
-}
-
-
-static IDE_INLINE void
-ide_fix_driveid(struct hd_driveid *id)
-{
-#ifdef CONFIG_COLDFIRE
- int i, n;
- unsigned short *wp = (unsigned short *) id;
- int avoid[] = {49, 51, 52, 59, -1 }; /* do not swap these words */
-
- /* Need to byte swap shorts, but not char fields */
- for (i = n = 0; i < sizeof(*id) / sizeof(*wp); i++, wp++) {
- if (avoid[n] == i) {
- n++;
- continue;
- }
- *wp = ((*wp & 0xff) << 8) | ((*wp >> 8) & 0xff);
- }
- /* have to word swap the one 32 bit field */
- id->lba_capacity = ((id->lba_capacity & 0xffff) << 16) |
- ((id->lba_capacity >> 16) & 0xffff);
-#endif
-}
-
-
-static IDE_INLINE void
-ide_release_lock (int *ide_lock)
-{
-}
-
-
-static IDE_INLINE void
-ide_get_lock(
- int *ide_lock,
- void (*handler)(int, void *, struct pt_regs *),
- void *data)
-{
-}
-
-
-#define ide_ack_intr(hwif) \
- ((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)
-#define ide__sti() __sti()
-
-/****************************************************************************/
-/*
- * System specific IO requirements
- */
-
-#ifdef CONFIG_COLDFIRE
-
-#ifdef CONFIG_SECUREEDGEMP3
-
-/* Replace standard IO functions for funky mapping of MP3 board */
-#undef outb
-#undef outb_p
-#undef inb
-#undef inb_p
-
-#define outb(v, a) ide_outb(v, (unsigned long) (a))
-#define outb_p(v, a) ide_outb(v, (unsigned long) (a))
-#define inb(a) ide_inb((unsigned long) (a))
-#define inb_p(a) ide_inb((unsigned long) (a))
-
-#define ADDR8_PTR(addr) (((addr) & 0x1) ? (0x8000 + (addr) - 1) : (addr))
-#define ADDR16_PTR(addr) (addr)
-#define ADDR32_PTR(addr) (addr)
-#define SWAP8(w) ((((w) & 0xffff) << 8) | (((w) & 0xffff) >> 8))
-#define SWAP16(w) (w)
-#define SWAP32(w) (w)
-
-
-static IDE_INLINE void
-ide_outb(unsigned int val, unsigned int addr)
-{
- volatile unsigned short *rp;
-
- DBGIDE("%s(val=%x,addr=%x)\n", __FUNCTION__, val, addr);
- rp = (volatile unsigned short *) ADDR8_PTR(addr);
- *rp = SWAP8(val);
-}
-
-
-static IDE_INLINE int
-ide_inb(unsigned int addr)
-{
- volatile unsigned short *rp, val;
-
- DBGIDE("%s(addr=%x)\n", __FUNCTION__, addr);
- rp = (volatile unsigned short *) ADDR8_PTR(addr);
- val = *rp;
- return(SWAP8(val));
-}
-
-
-static IDE_INLINE void
-ide_outw(unsigned int val, unsigned int addr)
-{
- volatile unsigned short *rp;
-
- DBGIDE("%s(val=%x,addr=%x)\n", __FUNCTION__, val, addr);
- rp = (volatile unsigned short *) ADDR16_PTR(addr);
- *rp = SWAP16(val);
-}
-
-static IDE_INLINE void
-ide_outsw(unsigned int addr, const void *vbuf, unsigned long len)
-{
- volatile unsigned short *rp, val;
- unsigned short *buf;
-
- DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
- buf = (unsigned short *) vbuf;
- rp = (volatile unsigned short *) ADDR16_PTR(addr);
- for (; (len > 0); len--) {
- val = *buf++;
- *rp = SWAP16(val);
- }
-}
-
-static IDE_INLINE int
-ide_inw(unsigned int addr)
-{
- volatile unsigned short *rp, val;
-
- DBGIDE("%s(addr=%x)\n", __FUNCTION__, addr);
- rp = (volatile unsigned short *) ADDR16_PTR(addr);
- val = *rp;
- return(SWAP16(val));
-}
-
-static IDE_INLINE void
-ide_insw(unsigned int addr, void *vbuf, unsigned long len)
-{
- volatile unsigned short *rp;
- unsigned short w, *buf;
-
- DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
- buf = (unsigned short *) vbuf;
- rp = (volatile unsigned short *) ADDR16_PTR(addr);
- for (; (len > 0); len--) {
- w = *rp;
- *buf++ = SWAP16(w);
- }
-}
-
-static IDE_INLINE void
-ide_insl(unsigned int addr, void *vbuf, unsigned long len)
-{
- volatile unsigned long *rp;
- unsigned long w, *buf;
-
- DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
- buf = (unsigned long *) vbuf;
- rp = (volatile unsigned long *) ADDR32_PTR(addr);
- for (; (len > 0); len--) {
- w = *rp;
- *buf++ = SWAP32(w);
- }
-}
-
-static IDE_INLINE void
-ide_outsl(unsigned int addr, const void *vbuf, unsigned long len)
-{
- volatile unsigned long *rp, val;
- unsigned long *buf;
-
- DBGIDE("%s(addr=%x,vbuf=%p,len=%x)\n", __FUNCTION__, addr, vbuf, len);
- buf = (unsigned long *) vbuf;
- rp = (volatile unsigned long *) ADDR32_PTR(addr);
- for (; (len > 0); len--) {
- val = *buf++;
- *rp = SWAP32(val);
- }
-}
-
-#elif CONFIG_eLIA
-
-/* 8/16 bit acesses are controlled by flicking bits in the CS register */
-#define ACCESS_MODE_16BIT() \
- *((volatile unsigned short *) (MCF_MBAR + MCFSIM_LOCALCS)) = 0x0080
-#define ACCESS_MODE_8BIT() \
- *((volatile unsigned short *) (MCF_MBAR + MCFSIM_LOCALCS)) = 0x0040
-
-
-static IDE_INLINE void
-ide_outw(unsigned int val, unsigned int addr)
-{
- ACCESS_MODE_16BIT();
- outw(val, addr);
- ACCESS_MODE_8BIT();
-}
-
-static IDE_INLINE void
-ide_outsw(unsigned int addr, const void *vbuf, unsigned long len)
-{
- ACCESS_MODE_16BIT();
- outsw(addr, vbuf, len);
- ACCESS_MODE_8BIT();
-}
-
-static IDE_INLINE int
-ide_inw(unsigned int addr)
-{
- int ret;
-
- ACCESS_MODE_16BIT();
- ret = inw(addr);
- ACCESS_MODE_8BIT();
- return(ret);
-}
-
-static IDE_INLINE void
-ide_insw(unsigned int addr, void *vbuf, unsigned long len)
-{
- ACCESS_MODE_16BIT();
- insw(addr, vbuf, len);
- ACCESS_MODE_8BIT();
-}
-
-static IDE_INLINE void
-ide_insl(unsigned int addr, void *vbuf, unsigned long len)
-{
- ACCESS_MODE_16BIT();
- insl(addr, vbuf, len);
- ACCESS_MODE_8BIT();
-}
-
-static IDE_INLINE void
-ide_outsl(unsigned int addr, const void *vbuf, unsigned long len)
-{
- ACCESS_MODE_16BIT();
- outsl(addr, vbuf, len);
- ACCESS_MODE_8BIT();
-}
-
-#endif /* CONFIG_SECUREEDGEMP3 */
-
-#undef outw
-#undef outw_p
-#undef outsw
-#undef inw
-#undef inw_p
-#undef insw
-#undef insl
-#undef outsl
-
-#define outw(v, a) ide_outw(v, (unsigned long) (a))
-#define outw_p(v, a) ide_outw(v, (unsigned long) (a))
-#define outsw(a, b, n) ide_outsw((unsigned long) (a), b, n)
-#define inw(a) ide_inw((unsigned long) (a))
-#define inw_p(a) ide_inw((unsigned long) (a))
-#define insw(a, b, n) ide_insw((unsigned long) (a), b, n)
-#define insl(a, b, n) ide_insl((unsigned long) (a), b, n)
-#define outsl(a, b, n) ide_outsl((unsigned long) (a), b, n)
-
-#endif CONFIG_COLDFIRE
-
-/****************************************************************************/
-#endif /* __KERNEL__ */
-#endif /* _M68KNOMMU_IDE_H */
-/****************************************************************************/
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff