arch/sh/include/mach-common/mach/secureedge5410.h

   1 /*
   2  * include/asm-sh/snapgear.h
   3  *
   4  * Modified version of io_se.h for the snapgear-specific functions.
   5  *
   6  * May be copied or modified under the terms of the GNU General Public
   7  * License.  See linux/COPYING for more information.
   8  *
   9  * IO functions for a SnapGear
  10  */
  11
  12 #ifndef _ASM_SH_IO_SNAPGEAR_H
  13 #define _ASM_SH_IO_SNAPGEAR_H
  14
  15 #define __IO_PREFIX     snapgear
  16 #include <asm/io_generic.h>
  17
  18 /*
  19  * We need to remember what was written to the ioport as some bits
  20  * are shared with other functions and you cannot read back what was
  21  * written :-|
  22  *
  23  * Bit        Read                   Write
  24  * -----------------------------------------------
  25  * D0         DCD on ttySC1          power
  26  * D1         Reset Switch           heatbeat
  27  * D2         ttySC0 CTS (7100)      LAN
  28  * D3         -                      WAN
  29  * D4         ttySC0 DCD (7100)      CONSOLE
  30  * D5         -                      ONLINE
  31  * D6         -                      VPN
  32  * D7         -                      DTR on ttySC1
  33  * D8         -                      ttySC0 RTS (7100)
  34  * D9         -                      ttySC0 DTR (7100)
  35  * D10        -                      RTC SCLK
  36  * D11        RTC DATA               RTC DATA
  37  * D12        -                      RTS RESET
  38  */
  39
  40 #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000)
  41 extern unsigned short secureedge5410_ioport;
  42
  43 #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \
  44          (secureedge5410_ioport = \
  45                         ((secureedge5410_ioport & ~(mask)) | ((val) & (mask)))))
  46 #define SECUREEDGE_READ_IOPORT() \
  47          ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817))
  48
  49 #endif /* _ASM_SH_IO_SNAPGEAR_H */