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

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * include/asm-sh/snapgear.h
   4  *
   5  * Modified version of io_se.h for the snapgear-specific functions.
   6  *
   7  * IO functions for a SnapGear
   8  */
   9
  10 #ifndef _ASM_SH_IO_SNAPGEAR_H
  11 #define _ASM_SH_IO_SNAPGEAR_H
  12
  13 #define __IO_PREFIX     snapgear
  14 #include <asm/io_generic.h>
  15
  16 /*
  17  * We need to remember what was written to the ioport as some bits
  18  * are shared with other functions and you cannot read back what was
  19  * written :-|
  20  *
  21  * Bit        Read                   Write
  22  * -----------------------------------------------
  23  * D0         DCD on ttySC1          power
  24  * D1         Reset Switch           heatbeat
  25  * D2         ttySC0 CTS (7100)      LAN
  26  * D3         -                      WAN
  27  * D4         ttySC0 DCD (7100)      CONSOLE
  28  * D5         -                      ONLINE
  29  * D6         -                      VPN
  30  * D7         -                      DTR on ttySC1
  31  * D8         -                      ttySC0 RTS (7100)
  32  * D9         -                      ttySC0 DTR (7100)
  33  * D10        -                      RTC SCLK
  34  * D11        RTC DATA               RTC DATA
  35  * D12        -                      RTS RESET
  36  */
  37
  38 #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000)
  39 extern unsigned short secureedge5410_ioport;
  40
  41 #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \
  42          (secureedge5410_ioport = \
  43                         ((secureedge5410_ioport & ~(mask)) | ((val) & (mask)))))
  44 #define SECUREEDGE_READ_IOPORT() \
  45          ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817))
  46
  47 #endif /* _ASM_SH_IO_SNAPGEAR_H */