1 files changed, 144 insertions, 0 deletions

diff --git a/include/asm-m68k/ide.h b/include/asm-m68k/ide.h
new file mode 100644
index 000000000000..36118fd01867
--- /dev/null
+++ b/include/asm-m68k/ide.h
@@ -0,0 +1,144 @@
+/*
+ *  linux/include/asm-m68k/ide.h
+ *
+ *  Copyright (C) 1994-1996  Linus Torvalds & authors
+ */
+
+/* Copyright(c) 1996 Kars de Jong */
+/* Based on the ide driver from 1.2.13pl8 */
+
+/*
+ * Credits (alphabetical):
+ *
+ *  - Bjoern Brauel
+ *  - Kars de Jong
+ *  - Torsten Ebeling
+ *  - Dwight Engen
+ *  - Thorsten Floeck
+ *  - Roman Hodek
+ *  - Guenther Kelleter
+ *  - Chris Lawrence
+ *  - Michael Rausch
+ *  - Christian Sauer
+ *  - Michael Schmitz
+ *  - Jes Soerensen
+ *  - Michael Thurm
+ *  - Geert Uytterhoeven
+ */
+
+#ifndef _M68K_IDE_H
+#define _M68K_IDE_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+
+#include <asm/setup.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#ifdef CONFIG_ATARI
+#include <linux/interrupt.h>
+#include <asm/atari_stdma.h>
+#endif
+
+#ifdef CONFIG_MAC
+#include <asm/macints.h>
+#endif
+
+#ifndef MAX_HWIFS
+#define MAX_HWIFS       4       /* same as the other archs */
+#endif
+
+/*
+ * Get rid of defs from io.h - ide has its private and conflicting versions
+ * Since so far no single m68k platform uses ISA/PCI I/O space for IDE, we
+ * always use the `raw' MMIO versions
+ */
+#undef inb
+#undef inw
+#undef insw
+#undef inl
+#undef insl
+#undef outb
+#undef outw
+#undef outsw
+#undef outl
+#undef outsl
+#undef readb
+#undef readw
+#undef readl
+#undef writeb
+#undef writew
+#undef writel
+
+#define inb                             in_8
+#define inw                             in_be16
+#define insw(port, addr, n)             raw_insw((u16 *)port, addr, n)
+#define inl                             in_be32
+#define insl(port, addr, n)             raw_insl((u32 *)port, addr, n)
+#define outb(val, port)                 out_8(port, val)
+#define outw(val, port)                 out_be16(port, val)
+#define outsw(port, addr, n)            raw_outsw((u16 *)port, addr, n)
+#define outl(val, port)                 out_be32(port, val)
+#define outsl(port, addr, n)            raw_outsl((u32 *)port, addr, n)
+#define readb                           in_8
+#define readw                           in_be16
+#define __ide_mm_insw(port, addr, n)    raw_insw((u16 *)port, addr, n)
+#define readl                           in_be32
+#define __ide_mm_insl(port, addr, n)    raw_insl((u32 *)port, addr, n)
+#define writeb(val, port)               out_8(port, val)
+#define writew(val, port)               out_be16(port, val)
+#define __ide_mm_outsw(port, addr, n)   raw_outsw((u16 *)port, addr, n)
+#define writel(val, port)               out_be32(port, val)
+#define __ide_mm_outsl(port, addr, n)   raw_outsl((u32 *)port, addr, n)
+#if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
+#define insw_swapw(port, addr, n)       raw_insw_swapw((u16 *)port, addr, n)
+#define outsw_swapw(port, addr, n)      raw_outsw_swapw((u16 *)port, addr, n)
+#endif
+
+
+/* Q40 and Atari have byteswapped IDE busses and since many interesting
+ * values in the identification string are text, chars and words they
+ * happened to be almost correct without swapping.. However *_capacity
+ * is needed for drives over 8 GB. RZ */
+#if defined(CONFIG_Q40) || defined(CONFIG_ATARI)
+#define M68K_IDE_SWAPW  (MACH_IS_Q40 || MACH_IS_ATARI)
+#endif
+
+#ifdef CONFIG_BLK_DEV_FALCON_IDE
+#define IDE_ARCH_LOCK
+
+extern int falconide_intr_lock;
+
+static __inline__ void ide_release_lock (void)
+{
+        if (MACH_IS_ATARI) {
+                if (falconide_intr_lock == 0) {
+                        printk("ide_release_lock: bug\n");
+                        return;
+                }
+                falconide_intr_lock = 0;
+                stdma_release();
+        }
+}
+
+static __inline__ void
+ide_get_lock(irqreturn_t (*handler)(int, void *, struct pt_regs *), void *data)
+{
+        if (MACH_IS_ATARI) {
+                if (falconide_intr_lock == 0) {
+                        if (in_interrupt() > 0)
+                                panic( "Falcon IDE hasn't ST-DMA lock in interrupt" );
+                        stdma_lock(handler, data);
+                        falconide_intr_lock = 1;
+                }
+        }
+}
+#endif /* CONFIG_BLK_DEV_FALCON_IDE */
+
+#define IDE_ARCH_ACK_INTR
+#define ide_ack_intr(hwif)      ((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)
+
+#endif /* __KERNEL__ */
+#endif /* _M68K_IDE_H */