include/asm-mips/marvell.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2004 by Ralf Baechle
   7  */
   8 #ifndef __ASM_MIPS_MARVELL_H
   9 #define __ASM_MIPS_MARVELL_H
  10
  11 #include <linux/pci.h>
  12
  13 #include <asm/byteorder.h>
  14
  15 extern unsigned long marvell_base;
  16
  17 /*
  18  * Because of an error/peculiarity in the Galileo chip, we need to swap the
  19  * bytes when running bigendian.
  20  */
  21 #define __MV_READ(ofs)                                                  \
  22         (*(volatile u32 *)(marvell_base+(ofs)))
  23 #define __MV_WRITE(ofs, data)                                           \
  24         do { *(volatile u32 *)(marvell_base+(ofs)) = (data); } while (0)
  25
  26 #define MV_READ(ofs)            le32_to_cpu(__MV_READ(ofs))
  27 #define MV_WRITE(ofs, data)     __MV_WRITE(ofs, cpu_to_le32(data))
  28
  29 #define MV_READ_16(ofs)                                                 \
  30         le16_to_cpu(*(volatile u16 *)(marvell_base+(ofs)))
  31 #define MV_WRITE_16(ofs, data)  \
  32         *(volatile u16 *)(marvell_base+(ofs)) = cpu_to_le16(data)
  33
  34 #define MV_READ_8(ofs)                                                  \
  35         *(volatile u8 *)(marvell_base+(ofs))
  36 #define MV_WRITE_8(ofs, data)                                           \
  37         *(volatile u8 *)(marvell_base+(ofs)) = data
  38
  39 #define MV_SET_REG_BITS(ofs, bits)                                      \
  40         (*((volatile u32 *)(marvell_base + (ofs)))) |= ((u32)cpu_to_le32(bits))
  41 #define MV_RESET_REG_BITS(ofs, bits)                                    \
  42         (*((volatile u32 *)(marvell_base + (ofs)))) &= ~((u32)cpu_to_le32(bits))
  43
  44 extern struct pci_ops mv_pci_ops;
  45
  46 struct mv_pci_controller {
  47         struct pci_controller   pcic;
  48
  49         /*
  50          * GT-64240/MV-64340 specific, per host bus information
  51          */
  52         unsigned long   config_addr;
  53         unsigned long   config_vreg;
  54 };
  55
  56 #endif  /* __ASM_MIPS_MARVELL_H */