The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/dev/podulebus/secreg.h

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    1 /* $NetBSD: secreg.h,v 1.1 2006/10/01 12:39:35 bjh21 Exp $ */
    2 
    3 /*
    4  * Ben Harris 2006
    5  *
    6  * This file is in the public domain.
    7  */
    8 
    9 /*
   10  * Register definitions for Acorn SCSI expansion cards (AKA30, AKA31, AKA32)
   11  */
   12 
   13 /*
   14  * Offsets are in bus_space units (words)
   15  */
   16 
   17 /* Podule "fast" space */
   18 #define SEC_ROM         0x000
   19 #define SEC_ISR         0x800 /* Interrupt status (read-only) */
   20 #define SEC_ISR_SBIC    0x08  /* Interrupt from WD33C93A SBIC */
   21 #define SEC_ISR_DMAC    0x02  /* TC uPD71071 DMAC */
   22 #define SEC_ISR_IRQ     0x01  /* OR of the above */
   23 #define SEC_CLRINT      0x800 /* Clear TC interrupt (write-only) */
   24 #define SEC_MPR         0xc00 /* Memory page register */
   25 #define SEC_MPR_UR      0x80  /* User reset */
   26 #define SEC_MPR_IE      0x40  /* Interrupts enabled */
   27 #define SEC_MPR_PAGE    0x3f  /* EPROM/SRAM page address */
   28 
   29 /* Module space */
   30 #define SEC_SRAM        0x000
   31 #define SEC_SBIC        0x800
   32 #define SEC_DMAC        0xc00
   33 
   34 /* The address lines of the DMAC are permuted. */
   35 #define DMAC(addr) ((addr) >> 1 | ((addr) & 1) << 7)
   36 
   37 #define SEC_CLKFREQ     80      /* Clock speed in 100 kHz */
   38 #define SEC_NPAGES      16
   39 #define SEC_PAGESIZE    4096
   40 #define SEC_MEMSIZE     (SEC_PAGESIZE * SEC_NPAGES)

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