Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee13...

[pandora-kernel.git] / arch / sh / kernel / io.c

diff --git a/arch/sh/kernel/io.c b/arch/sh/kernel/io.c
index d9932f2..501fe03 100644 (file)
--- a/arch/sh/kernel/io.c
+++ b/arch/sh/kernel/io.c
@@ -2,58 +2,140 @@
  * linux/arch/sh/kernel/io.c
  *
  * Copyright (C) 2000  Stuart Menefy
+ * Copyright (C) 2005  Paul Mundt
  *
  * Provide real functions which expand to whatever the header file defined.
  * Also definitions of machine independent IO functions.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
  */
-
-#include <asm/io.h>
 #include <linux/module.h>
+#include <asm/machvec.h>
+#include <asm/io.h>
 
 /*
  * Copy data from IO memory space to "real" memory space.
  * This needs to be optimized.
  */
-void  memcpy_fromio(void * to, unsigned long from, unsigned long count)
+void memcpy_fromio(void *to, volatile void __iomem *from, unsigned long count)
 {
        char *p = to;
         while (count) {
                 count--;
-                *p = readb(from);
+                *p = readb((void __iomem *)from);
                 p++;
                 from++;
         }
 }
- 
+EXPORT_SYMBOL(memcpy_fromio);
+
 /*
  * Copy data from "real" memory space to IO memory space.
  * This needs to be optimized.
  */
-void  memcpy_toio(unsigned long to, const void * from, unsigned long count)
+void memcpy_toio(volatile void __iomem *to, const void *from, unsigned long count)
 {
        const char *p = from;
         while (count) {
                 count--;
-                writeb(*p, to);
+                writeb(*p, (void __iomem *)to);
                 p++;
                 to++;
         }
 }
- 
+EXPORT_SYMBOL(memcpy_toio);
+
 /*
  * "memset" on IO memory space.
  * This needs to be optimized.
  */
-void  memset_io(unsigned long dst, int c, unsigned long count)
+void memset_io(volatile void __iomem *dst, int c, unsigned long count)
 {
         while (count) {
                 count--;
-                writeb(c, dst);
+                writeb(c, (void __iomem *)dst);
                 dst++;
         }
 }
-
-EXPORT_SYMBOL(memcpy_fromio);
-EXPORT_SYMBOL(memcpy_toio);
 EXPORT_SYMBOL(memset_io);
 
+void __raw_readsl(unsigned long addr, void *datap, int len)
+{
+       u32 *data;
+
+       for (data = datap; (len != 0) && (((u32)data & 0x1f) != 0); len--)
+               *data++ = ctrl_inl(addr);
+
+       if (likely(len >= (0x20 >> 2))) {
+               int tmp2, tmp3, tmp4, tmp5, tmp6;
+
+               __asm__ __volatile__(
+                       "1:                     \n\t"
+                       "mov.l  @%7, r0         \n\t"
+                       "mov.l  @%7, %2         \n\t"
+#ifdef CONFIG_CPU_SH4
+                       "movca.l r0, @%0        \n\t"
+#else
+                       "mov.l  r0, @%0         \n\t"
+#endif
+                       "mov.l  @%7, %3         \n\t"
+                       "mov.l  @%7, %4         \n\t"
+                       "mov.l  @%7, %5         \n\t"
+                       "mov.l  @%7, %6         \n\t"
+                       "mov.l  @%7, r7         \n\t"
+                       "mov.l  @%7, r0         \n\t"
+                       "mov.l  %2, @(0x04,%0)  \n\t"
+                       "mov    #0x20>>2, %2    \n\t"
+                       "mov.l  %3, @(0x08,%0)  \n\t"
+                       "sub    %2, %1          \n\t"
+                       "mov.l  %4, @(0x0c,%0)  \n\t"
+                       "cmp/hi %1, %2          ! T if 32 > len \n\t"
+                       "mov.l  %5, @(0x10,%0)  \n\t"
+                       "mov.l  %6, @(0x14,%0)  \n\t"
+                       "mov.l  r7, @(0x18,%0)  \n\t"
+                       "mov.l  r0, @(0x1c,%0)  \n\t"
+                       "bf.s   1b              \n\t"
+                       " add   #0x20, %0       \n\t"
+                       : "=&r" (data), "=&r" (len),
+                         "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4),
+                         "=&r" (tmp5), "=&r" (tmp6)
+                       : "r"(addr), "0" (data), "1" (len)
+                       : "r0", "r7", "t", "memory");
+       }
+
+       for (; len != 0; len--)
+               *data++ = ctrl_inl(addr);
+}
+EXPORT_SYMBOL(__raw_readsl);
+
+void __raw_writesl(unsigned long addr, const void *data, int len)
+{
+       if (likely(len != 0)) {
+               int tmp1;
+
+               __asm__ __volatile__ (
+                       "1:                             \n\t"
+                       "mov.l  @%0+, %1        \n\t"
+                       "dt             %3              \n\t"
+                       "bf.s           1b              \n\t"
+                       " mov.l %1, @%4         \n\t"
+                       : "=&r" (data), "=&r" (tmp1)
+                       : "0" (data), "r" (len), "r"(addr)
+                       : "t", "memory");
+       }
+}
+EXPORT_SYMBOL(__raw_writesl);
+
+void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+       return sh_mv.mv_ioport_map(port, nr);
+}
+EXPORT_SYMBOL(ioport_map);
+
+void ioport_unmap(void __iomem *addr)
+{
+       sh_mv.mv_ioport_unmap(addr);
+}
+EXPORT_SYMBOL(ioport_unmap);