target/linux/generic-2.6/patches-2.6.24/930-ppc_big_endian_io_memory_accessors.patch

   1 From a.othieno@bluewin.ch Tue Oct 11 07:50:21 2005
   2 From: Arthur Othieno <a.othieno@bluewin.ch>
   3 Subject: Big-endian I/O memory accessors.
   4 Date: Tue, 11 Oct 2005 07:50:21 +1000
   5 X-Patchwork-ID: 2759
   6
   7 From: Arthur Othieno <a.othieno@bluewin.ch>
   8
   9 I/O memory accessors. Big endian version. For those busses/devices
  10 that do export big-endian I/O memory.
  11
  12 Of notable relevance/reference:
  13
  14   http://lwn.net/Articles/132804/
  15   http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019798.html
  16   http://ozlabs.org/pipermail/linuxppc-embedded/2005-August/019752.html
  17
  18 Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch>
  19 ---
  20
  21 Paulus,
  22
  23 A similar patch for ppc64 made it upstream with your big ppc64 merge.
  24 This one is still sitting in http://patchwork.ozlabs.org/linuxppc/
  25 and didn't make it with the ppc32 equivalent. Thanks.
  26
  27
  28  include/asm-ppc/io.h |   20 ++++++++++++++++++++
  29  1 file changed, 20 insertions(+)
  30
  31
  32 ---
  33 diff -uprN a/include/asm-ppc/io.h b/include/asm-ppc/io.h
  34 --- a/include/asm-ppc/io.h      2005-08-21 17:49:44.000000000 -0400
  35 +++ b/include/asm-ppc/io.h      2005-08-21 20:29:55.000000000 -0400
  36 @@ -487,11 +487,21 @@ static inline unsigned int ioread16(void
  37         return readw(addr);
  38  }
  39
  40 +static inline unsigned int ioread16be(void __iomem *addr)
  41 +{
  42 +       return in_be16(addr);
  43 +}
  44 +
  45  static inline unsigned int ioread32(void __iomem *addr)
  46  {
  47         return readl(addr);
  48  }
  49
  50 +static inline unsigned int ioread32be(void __iomem *addr)
  51 +{
  52 +       return in_be32(addr);
  53 +}
  54 +
  55  static inline void iowrite8(u8 val, void __iomem *addr)
  56  {
  57         writeb(val, addr);
  58 @@ -502,11 +512,21 @@ static inline void iowrite16(u16 val, vo
  59         writew(val, addr);
  60  }
  61
  62 +static inline void iowrite16be(u16 val, void __iomem *addr)
  63 +{
  64 +       out_be16(addr, val);
  65 +}
  66 +
  67  static inline void iowrite32(u32 val, void __iomem *addr)
  68  {
  69         writel(val, addr);
  70  }
  71
  72 +static inline void iowrite32be(u32 val, void __iomem *addr)
  73 +{
  74 +       out_be32(addr, val);
  75 +}
  76 +
  77  static inline void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
  78  {
  79         _insb(addr, dst, count);
  80