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 71c9fde..501fe03 100644 (file)
--- a/arch/sh/kernel/io.c
+++ b/arch/sh/kernel/io.c
@@ -61,6 +61,73 @@ void memset_io(volatile void __iomem *dst, int c, unsigned long count)
 }
 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);