include/asm-sh/snapgear/io.h

   1 /*
   2  * include/asm-sh/snapgear/io.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_ADDR   INTC_IPRD
  24 #define IRL0_IPR_POS    3
  25 #define IRL0_PRIORITY   13
  26
  27 #define IRL1_IRQ                5
  28 #define IRL1_IPR_ADDR   INTC_IPRD
  29 #define IRL1_IPR_POS    2
  30 #define IRL1_PRIORITY   10
  31
  32 #define IRL2_IRQ                8
  33 #define IRL2_IPR_ADDR   INTC_IPRD
  34 #define IRL2_IPR_POS    1
  35 #define IRL2_PRIORITY   7
  36
  37 #define IRL3_IRQ                11
  38 #define IRL3_IPR_ADDR   INTC_IPRD
  39 #define IRL3_IPR_POS    0
  40 #define IRL3_PRIORITY   4
  41 #endif
  42
  43 extern unsigned char snapgear_inb(unsigned long port);
  44 extern unsigned short snapgear_inw(unsigned long port);
  45 extern unsigned int snapgear_inl(unsigned long port);
  46
  47 extern void snapgear_outb(unsigned char value, unsigned long port);
  48 extern void snapgear_outw(unsigned short value, unsigned long port);
  49 extern void snapgear_outl(unsigned int value, unsigned long port);
  50
  51 extern unsigned char snapgear_inb_p(unsigned long port);
  52 extern void snapgear_outb_p(unsigned char value, unsigned long port);
  53
  54 extern void snapgear_insl(unsigned long port, void *addr, unsigned long count);
  55 extern void snapgear_outsl(unsigned long port, const void *addr, unsigned long count);
  56
  57 extern unsigned long snapgear_isa_port2addr(unsigned long offset);
  58
  59 #ifdef CONFIG_SH_SECUREEDGE5410
  60 /*
  61  * We need to remember what was written to the ioport as some bits
  62  * are shared with other functions and you cannot read back what was
  63  * written :-|
  64  *
  65  * Bit        Read                   Write
  66  * -----------------------------------------------
  67  * D0         DCD on ttySC1          power
  68  * D1         Reset Switch           heatbeat
  69  * D2         ttySC0 CTS (7100)      LAN
  70  * D3         -                      WAN
  71  * D4         ttySC0 DCD (7100)      CONSOLE
  72  * D5         -                      ONLINE
  73  * D6         -                      VPN
  74  * D7         -                      DTR on ttySC1
  75  * D8         -                      ttySC0 RTS (7100)
  76  * D9         -                      ttySC0 DTR (7100)
  77  * D10        -                      RTC SCLK
  78  * D11        RTC DATA               RTC DATA
  79  * D12        -                      RTS RESET
  80  */
  81
  82  #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000)
  83  extern unsigned short secureedge5410_ioport;
  84
  85  #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \
  86                  (secureedge5410_ioport = \
  87                                 ((secureedge5410_ioport & ~(mask)) | ((val) & (mask)))))
  88  #define SECUREEDGE_READ_IOPORT() \
  89                  ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817))
  90 #endif
  91
  92 #endif /* _ASM_SH_IO_SNAPGEAR_H */