mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 21:21:47 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
445 lines
9.9 KiB
C
445 lines
9.9 KiB
C
/****************************************************************************/
|
|
/*
|
|
* 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 int
|
|
ide_check_region(ide_ioreg_t from, unsigned int extent)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
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 */
|
|
/****************************************************************************/
|