include/asm-sh/snapgear.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 #if defined(CONFIG_CPU_SH4)
  16 /*
  17  * The external interrupt lines, these take up ints 0 - 15 inclusive
  18  * depending on the priority for the interrupt.  In fact the priority
  19  * is the interrupt :-)
  20  */
  21
  22 #define IRL0_IRQ                2
  23 #define IRL0_IPR_POS    3
  24 #define IRL0_PRIORITY   13
  25
  26 #define IRL1_IRQ                5
  27 #define IRL1_IPR_POS    2
  28 #define IRL1_PRIORITY   10
  29
  30 #define IRL2_IRQ                8
  31 #define IRL2_IPR_POS    1
  32 #define IRL2_PRIORITY   7
  33
  34 #define IRL3_IRQ                11
  35 #define IRL3_IPR_POS    0
  36 #define IRL3_PRIORITY   4
  37 #endif
  38
  39 #define __IO_PREFIX     snapgear
  40 #include <asm/io_generic.h>
  41
  42 #ifdef CONFIG_SH_SECUREEDGE5410
  43 /*
  44  * We need to remember what was written to the ioport as some bits
  45  * are shared with other functions and you cannot read back what was
  46  * written :-|
  47  *
  48  * Bit        Read                   Write
  49  * -----------------------------------------------
  50  * D0         DCD on ttySC1          power
  51  * D1         Reset Switch           heatbeat
  52  * D2         ttySC0 CTS (7100)      LAN
  53  * D3         -                      WAN
  54  * D4         ttySC0 DCD (7100)      CONSOLE
  55  * D5         -                      ONLINE
  56  * D6         -                      VPN
  57  * D7         -                      DTR on ttySC1
  58  * D8         -                      ttySC0 RTS (7100)
  59  * D9         -                      ttySC0 DTR (7100)
  60  * D10        -                      RTC SCLK
  61  * D11        RTC DATA               RTC DATA
  62  * D12        -                      RTS RESET
  63  */
  64
  65 #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000)
  66 extern unsigned short secureedge5410_ioport;
  67
  68 #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \
  69          (secureedge5410_ioport = \
  70                         ((secureedge5410_ioport & ~(mask)) | ((val) & (mask)))))
  71 #define SECUREEDGE_READ_IOPORT() \
  72          ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817))
  73 #endif
  74
  75 #endif /* _ASM_SH_IO_SNAPGEAR_H */