1 files changed, 376 insertions, 0 deletions

diff --git a/include/asm-m68k/io.h b/include/asm-m68k/io.h
new file mode 100644
index 000000000000..6bb8b0d8f99d
--- /dev/null
+++ b/include/asm-m68k/io.h
@@ -0,0 +1,376 @@
+/*
+ * linux/include/asm-m68k/io.h
+ *
+ * 4/1/00 RZ: - rewritten to avoid clashes between ISA/PCI and other
+ *              IO access
+ *            - added Q40 support
+ *            - added skeleton for GG-II and Amiga PCMCIA
+ * 2/3/01 RZ: - moved a few more defs into raw_io.h
+ *
+ * inX/outX/readX/writeX should not be used by any driver unless it does
+ * ISA or PCI access. Other drivers should use function defined in raw_io.h
+ * or define its own macros on top of these.
+ *
+ *    inX(),outX()              are for PCI and ISA I/O
+ *    readX(),writeX()          are for PCI memory
+ *    isa_readX(),isa_writeX()  are for ISA memory
+ *
+ * moved mem{cpy,set}_*io inside CONFIG_PCI
+ */
+
+#ifndef _IO_H
+#define _IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <asm/raw_io.h>
+#include <asm/virtconvert.h>
+
+
+#ifdef CONFIG_ATARI
+#include <asm/atarihw.h>
+#endif
+
+
+/*
+ * IO/MEM definitions for various ISA bridges
+ */
+
+
+#ifdef CONFIG_Q40
+
+#define q40_isa_io_base  0xff400000
+#define q40_isa_mem_base 0xff800000
+
+#define Q40_ISA_IO_B(ioaddr) (q40_isa_io_base+1+4*((unsigned long)(ioaddr)))
+#define Q40_ISA_IO_W(ioaddr) (q40_isa_io_base+  4*((unsigned long)(ioaddr)))
+#define Q40_ISA_MEM_B(madr)  (q40_isa_mem_base+1+4*((unsigned long)(madr)))
+#define Q40_ISA_MEM_W(madr)  (q40_isa_mem_base+  4*((unsigned long)(madr)))
+
+#define MULTI_ISA 0
+#endif /* Q40 */
+
+/* GG-II Zorro to ISA bridge */
+#ifdef CONFIG_GG2
+
+extern unsigned long gg2_isa_base;
+#define GG2_ISA_IO_B(ioaddr) (gg2_isa_base+1+((unsigned long)(ioaddr)*4))
+#define GG2_ISA_IO_W(ioaddr) (gg2_isa_base+  ((unsigned long)(ioaddr)*4))
+#define GG2_ISA_MEM_B(madr)  (gg2_isa_base+1+(((unsigned long)(madr)*4) & 0xfffff))
+#define GG2_ISA_MEM_W(madr)  (gg2_isa_base+  (((unsigned long)(madr)*4) & 0xfffff))
+
+#ifndef MULTI_ISA
+#define MULTI_ISA 0
+#else
+#undef MULTI_ISA
+#define MULTI_ISA 1
+#endif
+#endif /* GG2 */
+
+#ifdef CONFIG_AMIGA_PCMCIA
+#include <asm/amigayle.h>
+
+#define AG_ISA_IO_B(ioaddr) ( GAYLE_IO+(ioaddr)+(((ioaddr)&1)*GAYLE_ODD) )
+#define AG_ISA_IO_W(ioaddr) ( GAYLE_IO+(ioaddr) )
+
+#ifndef MULTI_ISA
+#define MULTI_ISA 0
+#else
+#undef MULTI_ISA
+#define MULTI_ISA 1
+#endif
+#endif /* AMIGA_PCMCIA */
+
+
+
+#ifdef CONFIG_ISA
+
+#if MULTI_ISA == 0
+#undef MULTI_ISA
+#endif
+
+#define Q40_ISA (1)
+#define GG2_ISA (2)
+#define AG_ISA  (3)
+
+#if defined(CONFIG_Q40) && !defined(MULTI_ISA)
+#define ISA_TYPE Q40_ISA
+#define ISA_SEX  0
+#endif
+#if defined(CONFIG_AMIGA_PCMCIA) && !defined(MULTI_ISA)
+#define ISA_TYPE AG_ISA
+#define ISA_SEX  1
+#endif
+#if defined(CONFIG_GG2) && !defined(MULTI_ISA)
+#define ISA_TYPE GG2_ISA
+#define ISA_SEX  0
+#endif
+
+#ifdef MULTI_ISA
+extern int isa_type;
+extern int isa_sex;
+
+#define ISA_TYPE isa_type
+#define ISA_SEX  isa_sex
+#endif
+
+/*
+ * define inline addr translation functions. Normally only one variant will
+ * be compiled in so the case statement will be optimised away
+ */
+
+static inline u8 *isa_itb(unsigned long addr)
+{
+  switch(ISA_TYPE)
+    {
+#ifdef CONFIG_Q40
+    case Q40_ISA: return (u8 *)Q40_ISA_IO_B(addr);
+#endif
+#ifdef CONFIG_GG2
+    case GG2_ISA: return (u8 *)GG2_ISA_IO_B(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+    case AG_ISA: return (u8 *)AG_ISA_IO_B(addr);
+#endif
+    default: return 0; /* avoid warnings, just in case */
+    }
+}
+static inline u16 *isa_itw(unsigned long addr)
+{
+  switch(ISA_TYPE)
+    {
+#ifdef CONFIG_Q40
+    case Q40_ISA: return (u16 *)Q40_ISA_IO_W(addr);
+#endif
+#ifdef CONFIG_GG2
+    case GG2_ISA: return (u16 *)GG2_ISA_IO_W(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+    case AG_ISA: return (u16 *)AG_ISA_IO_W(addr);
+#endif
+    default: return 0; /* avoid warnings, just in case */
+    }
+}
+static inline u8 *isa_mtb(unsigned long addr)
+{
+  switch(ISA_TYPE)
+    {
+#ifdef CONFIG_Q40
+    case Q40_ISA: return (u8 *)Q40_ISA_MEM_B(addr);
+#endif
+#ifdef CONFIG_GG2
+    case GG2_ISA: return (u8 *)GG2_ISA_MEM_B(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+    case AG_ISA: return (u8 *)addr;
+#endif
+    default: return 0; /* avoid warnings, just in case */
+    }
+}
+static inline u16 *isa_mtw(unsigned long addr)
+{
+  switch(ISA_TYPE)
+    {
+#ifdef CONFIG_Q40
+    case Q40_ISA: return (u16 *)Q40_ISA_MEM_W(addr);
+#endif
+#ifdef CONFIG_GG2
+    case GG2_ISA: return (u16 *)GG2_ISA_MEM_W(addr);
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+    case AG_ISA: return (u16 *)addr;
+#endif
+    default: return 0; /* avoid warnings, just in case */
+    }
+}
+
+
+#define isa_inb(port)      in_8(isa_itb(port))
+#define isa_inw(port)      (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port)))
+#define isa_outb(val,port) out_8(isa_itb(port),(val))
+#define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val)))
+
+#define isa_readb(p)       in_8(isa_mtb((unsigned long)(p)))
+#define isa_readw(p)       \
+        (ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \
+                 : in_le16(isa_mtw((unsigned long)(p))))
+#define isa_writeb(val,p)  out_8(isa_mtb((unsigned long)(p)),(val))
+#define isa_writew(val,p)  \
+        (ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val))  \
+                 : out_le16(isa_mtw((unsigned long)(p)),(val)))
+
+static inline void isa_delay(void)
+{
+  switch(ISA_TYPE)
+    {
+#ifdef CONFIG_Q40
+    case Q40_ISA: isa_outb(0,0x80); break;
+#endif
+#ifdef CONFIG_GG2
+    case GG2_ISA: break;
+#endif
+#ifdef CONFIG_AMIGA_PCMCIA
+    case AG_ISA: break;
+#endif
+    default: break; /* avoid warnings */
+    }
+}
+
+#define isa_inb_p(p)      ({u8 v=isa_inb(p);isa_delay();v;})
+#define isa_outb_p(v,p)   ({isa_outb((v),(p));isa_delay();})
+#define isa_inw_p(p)      ({u16 v=isa_inw(p);isa_delay();v;})
+#define isa_outw_p(v,p)   ({isa_outw((v),(p));isa_delay();})
+#define isa_inl_p(p)      ({u32 v=isa_inl(p);isa_delay();v;})
+#define isa_outl_p(v,p)   ({isa_outl((v),(p));isa_delay();})
+
+#define isa_insb(port, buf, nr) raw_insb(isa_itb(port), (u8 *)(buf), (nr))
+#define isa_outsb(port, buf, nr) raw_outsb(isa_itb(port), (u8 *)(buf), (nr))
+
+#define isa_insw(port, buf, nr)     \
+       (ISA_SEX ? raw_insw(isa_itw(port), (u16 *)(buf), (nr)) :    \
+                  raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
+
+#define isa_outsw(port, buf, nr)    \
+       (ISA_SEX ? raw_outsw(isa_itw(port), (u16 *)(buf), (nr)) :  \
+                  raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
+#endif  /* CONFIG_ISA */
+
+
+#if defined(CONFIG_ISA) && !defined(CONFIG_PCI)
+#define inb     isa_inb
+#define inb_p   isa_inb_p
+#define outb    isa_outb
+#define outb_p  isa_outb_p
+#define inw     isa_inw
+#define inw_p   isa_inw_p
+#define outw    isa_outw
+#define outw_p  isa_outw_p
+#define inl     isa_inw
+#define inl_p   isa_inw_p
+#define outl    isa_outw
+#define outl_p  isa_outw_p
+#define insb    isa_insb
+#define insw    isa_insw
+#define outsb   isa_outsb
+#define outsw   isa_outsw
+#define readb   isa_readb
+#define readw   isa_readw
+#define writeb  isa_writeb
+#define writew  isa_writew
+#endif /* CONFIG_ISA */
+
+#if defined(CONFIG_PCI)
+
+#define inl(port)        in_le32(port)
+#define outl(val,port)   out_le32((port),(val))
+#define readl(addr)      in_le32(addr)
+#define writel(val,addr) out_le32((addr),(val))
+
+/* those can be defined for both ISA and PCI - it won't work though */
+#define readb(addr)       in_8(addr)
+#define readw(addr)       in_le16(addr)
+#define writeb(val,addr)  out_8((addr),(val))
+#define writew(val,addr)  out_le16((addr),(val))
+
+#define readb_relaxed(addr) readb(addr)
+#define readw_relaxed(addr) readw(addr)
+#define readl_relaxed(addr) readl(addr)
+
+#ifndef CONFIG_ISA
+#define inb(port)      in_8(port)
+#define outb(val,port) out_8((port),(val))
+#define inw(port)      in_le16(port)
+#define outw(val,port) out_le16((port),(val))
+
+#else
+/*
+ * kernel with both ISA and PCI compiled in, those have
+ * conflicting defs for in/out. Simply consider port < 1024
+ * ISA and everything else PCI. read,write not defined
+ * in this case
+ */
+#define inb(port) ((port)<1024 ? isa_inb(port) : in_8(port))
+#define inb_p(port) ((port)<1024 ? isa_inb_p(port) : in_8(port))
+#define inw(port) ((port)<1024 ? isa_inw(port) : in_le16(port))
+#define inw_p(port) ((port)<1024 ? isa_inw_p(port) : in_le16(port))
+#define inl(port) ((port)<1024 ? isa_inl(port) : in_le32(port))
+#define inl_p(port) ((port)<1024 ? isa_inl_p(port) : in_le32(port))
+
+#define outb(val,port) ((port)<1024 ? isa_outb((val),(port)) : out_8((port),(val)))
+#define outb_p(val,port) ((port)<1024 ? isa_outb_p((val),(port)) : out_8((port),(val)))
+#define outw(val,port) ((port)<1024 ? isa_outw((val),(port)) : out_le16((port),(val)))
+#define outw_p(val,port) ((port)<1024 ? isa_outw_p((val),(port)) : out_le16((port),(val)))
+#define outl(val,port) ((port)<1024 ? isa_outl((val),(port)) : out_le32((port),(val)))
+#define outl_p(val,port) ((port)<1024 ? isa_outl_p((val),(port)) : out_le32((port),(val)))
+#endif
+#endif /* CONFIG_PCI */
+
+#if !defined(CONFIG_ISA) && !defined(CONFIG_PCI) && defined(CONFIG_HP300)
+/*
+ * We need to define dummy functions otherwise drivers/serial/8250.c doesn't link
+ */
+#define inb(port)        0xff
+#define inb_p(port)      0xff
+#define outb(val,port)   do { } while (0)
+#define outb_p(val,port) do { } while (0)
+
+/*
+ * These should be valid on any ioremap()ed region
+ */
+#define readb(addr)      in_8(addr)
+#define writeb(val,addr) out_8((addr),(val))
+#define readl(addr)      in_le32(addr)
+#define writel(val,addr) out_le32((addr),(val))
+#endif
+
+#define mmiowb()
+
+static inline void *ioremap(unsigned long physaddr, unsigned long size)
+{
+        return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
+{
+        return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+static inline void *ioremap_writethrough(unsigned long physaddr,
+                                         unsigned long size)
+{
+        return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
+static inline void *ioremap_fullcache(unsigned long physaddr,
+                                      unsigned long size)
+{
+        return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
+
+/* m68k caches aren't DMA coherent */
+extern void dma_cache_wback_inv(unsigned long start, unsigned long size);
+extern void dma_cache_wback(unsigned long start, unsigned long size);
+extern void dma_cache_inv(unsigned long start, unsigned long size);
+
+
+#ifndef CONFIG_SUN3
+#define IO_SPACE_LIMIT 0xffff
+#else
+#define IO_SPACE_LIMIT 0x0fffffff
+#endif
+
+#endif /* __KERNEL__ */
+
+#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED          1
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)    __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)   p
+
+#endif /* _IO_H */