Linux-2.6.12-rc2
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!
diff --git a/include/asm-m68knommu/io.h b/include/asm-m68knommu/io.h
new file mode 100644
index 0000000..30fade4
--- /dev/null
+++ b/include/asm-m68knommu/io.h
@@ -0,0 +1,203 @@
+#ifndef _M68KNOMMU_IO_H
+#define _M68KNOMMU_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+
+/*
+ * These are for ISA/PCI shared memory _only_ and should never be used
+ * on any other type of memory, including Zorro memory. They are meant to
+ * access the bus in the bus byte order which is little-endian!.
+ *
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently. On the m68k architecture, we just read/write the
+ * memory location directly.
+ */
+/* ++roman: The assignments to temp. vars avoid that gcc sometimes generates
+ * two accesses to memory, which may be undesireable for some devices.
+ */
+
+/*
+ * swap functions are sometimes needed to interface little-endian hardware
+ */
+static inline unsigned short _swapw(volatile unsigned short v)
+{
+ return ((v << 8) | (v >> 8));
+}
+
+static inline unsigned int _swapl(volatile unsigned long v)
+{
+ return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
+}
+
+#define readb(addr) \
+ ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
+#define readw(addr) \
+ ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
+#define readl(addr) \
+ ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
+
+#define readb_relaxed(addr) readb(addr)
+#define readw_relaxed(addr) readw(addr)
+#define readl_relaxed(addr) readl(addr)
+
+#define writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b))
+#define writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b))
+#define writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b))
+
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+
+static inline void io_outsb(unsigned int addr, void *buf, int len)
+{
+ volatile unsigned char *ap = (volatile unsigned char *) addr;
+ unsigned char *bp = (unsigned char *) buf;
+ while (len--)
+ *ap = *bp++;
+}
+
+static inline void io_outsw(unsigned int addr, void *buf, int len)
+{
+ volatile unsigned short *ap = (volatile unsigned short *) addr;
+ unsigned short *bp = (unsigned short *) buf;
+ while (len--)
+ *ap = _swapw(*bp++);
+}
+
+static inline void io_outsl(unsigned int addr, void *buf, int len)
+{
+ volatile unsigned int *ap = (volatile unsigned int *) addr;
+ unsigned int *bp = (unsigned int *) buf;
+ while (len--)
+ *ap = _swapl(*bp++);
+}
+
+static inline void io_insb(unsigned int addr, void *buf, int len)
+{
+ volatile unsigned char *ap = (volatile unsigned char *) addr;
+ unsigned char *bp = (unsigned char *) buf;
+ while (len--)
+ *bp++ = *ap;
+}
+
+static inline void io_insw(unsigned int addr, void *buf, int len)
+{
+ volatile unsigned short *ap = (volatile unsigned short *) addr;
+ unsigned short *bp = (unsigned short *) buf;
+ while (len--)
+ *bp++ = _swapw(*ap);
+}
+
+static inline void io_insl(unsigned int addr, void *buf, int len)
+{
+ volatile unsigned int *ap = (volatile unsigned int *) addr;
+ unsigned int *bp = (unsigned int *) buf;
+ while (len--)
+ *bp++ = _swapl(*ap);
+}
+
+#define mmiowb()
+
+/*
+ * make the short names macros so specific devices
+ * can override them as required
+ */
+
+#define memset_io(a,b,c) memset((void *)(a),(b),(c))
+#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
+#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
+
+#define inb(addr) readb(addr)
+#define inw(addr) readw(addr)
+#define inl(addr) readl(addr)
+#define outb(x,addr) ((void) writeb(x,addr))
+#define outw(x,addr) ((void) writew(x,addr))
+#define outl(x,addr) ((void) writel(x,addr))
+
+#define inb_p(addr) inb(addr)
+#define inw_p(addr) inw(addr)
+#define inl_p(addr) inl(addr)
+#define outb_p(x,addr) outb(x,addr)
+#define outw_p(x,addr) outw(x,addr)
+#define outl_p(x,addr) outl(x,addr)
+
+#define outsb(a,b,l) io_outsb(a,b,l)
+#define outsw(a,b,l) io_outsw(a,b,l)
+#define outsl(a,b,l) io_outsl(a,b,l)
+
+#define insb(a,b,l) io_insb(a,b,l)
+#define insw(a,b,l) io_insw(a,b,l)
+#define insl(a,b,l) io_insl(a,b,l)
+
+#define IO_SPACE_LIMIT 0xffff
+
+
+/* Values for nocacheflag and cmode */
+#define IOMAP_FULL_CACHING 0
+#define IOMAP_NOCACHE_SER 1
+#define IOMAP_NOCACHE_NONSER 2
+#define IOMAP_WRITETHROUGH 3
+
+extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
+extern void __iounmap(void *addr, unsigned long size);
+
+extern inline void *ioremap(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+extern inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+extern inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
+extern inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
+extern void iounmap(void *addr);
+
+/* Nothing to do */
+
+#define dma_cache_inv(_start,_size) do { } while (0)
+#define dma_cache_wback(_start,_size) do { } while (0)
+#define dma_cache_wback_inv(_start,_size) do { } while (0)
+
+/* Pages to physical address... */
+#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT)
+#define page_to_bus(page) ((page - mem_map) << PAGE_SHIFT)
+
+/*
+ * Macros used for converting between virtual and physical mappings.
+ */
+#define mm_ptov(vaddr) ((void *) (vaddr))
+#define mm_vtop(vaddr) ((unsigned long) (vaddr))
+#define phys_to_virt(vaddr) ((void *) (vaddr))
+#define virt_to_phys(vaddr) ((unsigned long) (vaddr))
+
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+
+/*
+ * 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 /* __KERNEL__ */
+
+#endif /* _M68KNOMMU_IO_H */