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/*
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* COPYRIGHT (c) 1998 by Radstone Technology
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*
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*
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* THIS FILE IS PROVIDED TO YOU, THE USER, "AS IS", WITHOUT WARRANTY OF ANY
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* KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK
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* AS TO THE QUALITY AND PERFORMANCE OF ALL CODE IN THIS FILE IS WITH YOU.
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*
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* You are hereby granted permission to use, copy, modify, and distribute
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* this file, provided that this notice, plus the above copyright notice
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* and disclaimer, appears in all copies. Radstone Technology will provide
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* no support for this code.
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*
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* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994, 1997.
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* On-Line Applications Research Corporation (OAR).
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* All rights assigned to U.S. Government, 1994.
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*
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* This material may be reproduced by or for the U.S. Government pursuant
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* to the copyright license under the clause at DFARS 252.227-7013. This
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* notice must appear in all copies of this file and its derivatives.
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*
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* $ld:
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*/
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#include <rtems.h>
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#include <assert.h>
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#include <stdio.h>
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#include <bsp.h>
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#include <pci.h>
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/********************************************************************
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********************************************************************
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********* *********
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********* Prototypes *********
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********* *********
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********************************************************************
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********************************************************************/
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typedef struct {
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rtems_unsigned32 PCI_ID; /* Offset 0x0000 */
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rtems_unsigned32 PCI_CSR; /* Offset 0x0004 */
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rtems_unsigned32 PCI_CLASS; /* Offset 0x0008 */
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rtems_unsigned32 PCI_MISC0; /* Offset 0x000C */
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rtems_unsigned32 PCI_BS; /* Offset 0x0010 */
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rtems_unsigned32 Buf_Offset_0x0014[ 0x0A ]; /* Offset 0x0014 */
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rtems_unsigned32 PCI_MISC1; /* Offset 0x003C */
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rtems_unsigned32 Buf_Offset_0x0040[ 0x30 ]; /* Offset 0x0040 */
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rtems_unsigned32 LSI0_CTL; /* Offset 0x0100 */
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rtems_unsigned32 LSI0_BS; /* Offset 0x0104 */
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rtems_unsigned32 LSI0_BD; /* Offset 0x0108 */
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rtems_unsigned32 LSI0_TO; /* Offset 0x010C */
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rtems_unsigned32 Buf_Offset_0x0110; /* Offset 0x0110 */
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rtems_unsigned32 LSI1_CTL; /* Offset 0x0114 */
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rtems_unsigned32 LSI1_BS; /* Offset 0x0118 */
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rtems_unsigned32 LSI1_BD; /* Offset 0x011C */
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rtems_unsigned32 LSI1_TO; /* Offset 0x0120 */
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rtems_unsigned32 Buf_Offset_0x0124; /* Offset 0x0124 */
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rtems_unsigned32 LSI2_CTL; /* Offset 0x0128 */
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rtems_unsigned32 LSI2_BS; /* Offset 0x012C */
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rtems_unsigned32 LSI2_BD; /* Offset 0x0130 */
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rtems_unsigned32 LSI2_TO; /* Offset 0x0134 */
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rtems_unsigned32 Buf_Offset_0x0138; /* Offset 0x0138 */
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rtems_unsigned32 LSI3_CTL; /* Offset 0x013C */
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rtems_unsigned32 LSI3_BS; /* Offset 0x0140 */
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rtems_unsigned32 LSI3_BD; /* Offset 0x0144 */
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rtems_unsigned32 LSI3_TO; /* Offset 0x0148 */
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rtems_unsigned32 Buf_Offset_0x014C[ 0x09 ]; /* Offset 0x014C */
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rtems_unsigned32 SCYC_CTL; /* Offset 0x0170 */
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rtems_unsigned32 SCYC_ADDR; /* Offset 0x0174 */
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rtems_unsigned32 SCYC_EN; /* Offset 0x0178 */
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rtems_unsigned32 SCYC_CMP; /* Offset 0x017C */
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rtems_unsigned32 SCYC_SWP; /* Offset 0x0180 */
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rtems_unsigned32 LMISC; /* Offset 0x0184 */
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rtems_unsigned32 SLSI; /* Offset 0x0188 */
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rtems_unsigned32 L_CMDERR; /* Offset 0x018C */
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rtems_unsigned32 LAERR; /* Offset 0x0190 */
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rtems_unsigned32 Buf_Offset_0x0194[ 0x1B ]; /* Offset 0x0194 */
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rtems_unsigned32 DCTL; /* Offset 0x0200 */
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rtems_unsigned32 DTBC; /* Offset 0x0204 */
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rtems_unsigned32 DLA; /* Offset 0x0208 */
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rtems_unsigned32 Buf_Offset_0x020C; /* Offset 0x020C */
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rtems_unsigned32 DVA; /* Offset 0x0210 */
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rtems_unsigned32 Buf_Offset_0x0214; /* Offset 0x0214 */
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rtems_unsigned32 DCPP; /* Offset 0x0218 */
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rtems_unsigned32 Buf_Offset_0x021C; /* Offset 0x021C */
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rtems_unsigned32 DGCS; /* Offset 0x0220 */
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rtems_unsigned32 D_LLUE; /* Offset 0x0224 */
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rtems_unsigned32 Buf_Offset_0x0228[ 0x36 ]; /* Offset 0x0228 */
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rtems_unsigned32 LINT_EN; /* Offset 0x0300 */
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rtems_unsigned32 LINT_STAT; /* Offset 0x0304 */
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rtems_unsigned32 LINT_MAP0; /* Offset 0x0308 */
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rtems_unsigned32 LINT_MAP1; /* Offset 0x030C */
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rtems_unsigned32 VINT_EN; /* Offset 0x0310 */
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rtems_unsigned32 VINT_STAT; /* Offset 0x0314 */
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rtems_unsigned32 VINT_MAP0; /* Offset 0x0318 */
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rtems_unsigned32 VINT_MAP1; /* Offset 0x031C */
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rtems_unsigned32 STATID; /* Offset 0x0320 */
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rtems_unsigned32 V1_STATID; /* Offset 0x0324 */
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rtems_unsigned32 V2_STATID; /* Offset 0x0328 */
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rtems_unsigned32 V3_STATID; /* Offset 0x032C */
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rtems_unsigned32 V4_STATID; /* Offset 0x0330 */
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rtems_unsigned32 V5_STATID; /* Offset 0x0334 */
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rtems_unsigned32 V6_STATID; /* Offset 0x0338 */
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rtems_unsigned32 V7_STATID; /* Offset 0x033C */
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rtems_unsigned32 Buf_Offset_0x0340[ 0x30 ]; /* Offset 0x0340 */
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rtems_unsigned32 MAST_CTL; /* Offset 0x0400 */
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rtems_unsigned32 MISC_CTL; /* Offset 0x0404 */
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rtems_unsigned32 MISC_STAT; /* Offset 0x0408 */
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rtems_unsigned32 USER_AM; /* Offset 0x040C */
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rtems_unsigned32 Buf_Offset_0x0410[ 0x2bc ];/* Offset 0x0410 */
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rtems_unsigned32 VSI0_CTL; /* Offset 0x0F00 */
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rtems_unsigned32 VSI0_BS; /* Offset 0x0F04 */
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rtems_unsigned32 VSI0_BD; /* Offset 0x0F08 */
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rtems_unsigned32 VSI0_TO; /* Offset 0x0F0C */
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rtems_unsigned32 Buf_Offset_0x0f10; /* Offset 0x0F10 */
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rtems_unsigned32 VSI1_CTL; /* Offset 0x0F14 */
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rtems_unsigned32 VSI1_BS; /* Offset 0x0F18 */
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rtems_unsigned32 VSI1_BD; /* Offset 0x0F1C */
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rtems_unsigned32 VSI1_TO; /* Offset 0x0F20 */
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rtems_unsigned32 Buf_Offset_0x0F24; /* Offset 0x0F24 */
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rtems_unsigned32 VSI2_CTL; /* Offset 0x0F28 */
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rtems_unsigned32 VSI2_BS; /* Offset 0x0F2C */
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rtems_unsigned32 VSI2_BD; /* Offset 0x0F30 */
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rtems_unsigned32 VSI2_TO; /* Offset 0x0F34 */
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rtems_unsigned32 Buf_Offset_0x0F38; /* Offset 0x0F38 */
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rtems_unsigned32 VSI3_CTL; /* Offset 0x0F3C */
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rtems_unsigned32 VSI3_BS; /* Offset 0x0F40 */
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rtems_unsigned32 VSI3_BD; /* Offset 0x0F44 */
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rtems_unsigned32 VSI3_TO; /* Offset 0x0F48 */
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rtems_unsigned32 Buf_Offset_0x0F4C[ 0x9 ]; /* Offset 0x0F4C */
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rtems_unsigned32 VRAI_CTL; /* Offset 0x0F70 */
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rtems_unsigned32 VRAI_BS; /* Offset 0x0F74 */
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rtems_unsigned32 Buf_Offset_0x0F78[ 0x2 ]; /* Offset 0x0F78 */
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rtems_unsigned32 VCSR_CTL; /* Offset 0x0F80 */
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rtems_unsigned32 VCSR_TO; /* Offset 0x0F84 */
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rtems_unsigned32 V_AMERR; /* Offset 0x0F88 */
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rtems_unsigned32 VAERR; /* Offset 0x0F8C */
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rtems_unsigned32 Buf_Offset_0x0F90[ 0x19 ]; /* Offset 0x0F90 */
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rtems_unsigned32 VCSR_CLR; /* Offset 0x0FF4 */
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rtems_unsigned32 VCSR_SET; /* Offset 0x0FF8 */
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rtems_unsigned32 VCSR_BS; /* Offset 0x0FFC */
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} Universe_Memory;
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volatile Universe_Memory *UNIVERSE;
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/*
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* PCI_bus_write
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*/
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void PCI_bus_write(
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volatile rtems_unsigned32 * _addr, /* IN */
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rtems_unsigned32 _data /* IN */
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)
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{
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outport_32(_addr, _data);
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}
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rtems_unsigned32 PCI_bus_read(
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volatile rtems_unsigned32 * _addr /* IN */
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)
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{
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rtems_unsigned32 data;
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inport_32(_addr, data);
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return data;
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}
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/********************************************************************
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********************************************************************
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********* *********
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********* *********
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********* *********
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********************************************************************
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********************************************************************/
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/*
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* Initializes the UNIVERSE chip. This routine is called automatically
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* by the boot code. This routine should be called by user code only if
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* a complete PPCn_60x VME initialization is required.
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*/
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void InitializeUniverse()
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{
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rtems_unsigned32 pci_id;
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rtems_unsigned32 universe_temp_value;
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/*
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* Verify the UNIVERSE CHIP ID
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*/
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(void)PCIConfigRead32(0,4,0,PCI_CONFIG_VENDOR_LOW, &pci_id);
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/*
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* compare to known ID
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*/
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if (pci_id != 0x000010e3 ){
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DEBUG_puts ("Invalid PPCN_60X_UNIVERSE_CHIP_ID: ");
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rtems_fatal_error_occurred( 0x603e0bad );
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}
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(void)PCIConfigRead32(0,4,0,PCI_CONFIG_BAR_0, &universe_temp_value);
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UNIVERSE = (Universe_Memory *)(universe_temp_value & ~PCI_ADDRESS_IO_SPACE);
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/*
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* Set the UNIVERSE PCI Configuration Space Control and Status Register to
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* medium speed device, Target Back to Back Capable, Master Enable, Target
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* Memory Enable and Target IO Enable
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*/
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PCIConfigWrite32(0,4,0,PCI_CONFIG_COMMAND, PCI_ENABLE_IO_SPACE |
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PCI_ENABLE_MEMORY_SPACE |
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PCI_ENABLE_BUS_MASTER);
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/*
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* Turn off the sysfail by setting SYSFAIL bit to 1 on the VCSR_CLR register
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*/
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PCI_bus_write( &UNIVERSE->VCSR_CLR, 0x40000000 );
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#if 0
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/*
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* Set VMEbus Slave Image 0 Base Address to 0x04000000 on VSI0_BS register.
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*/
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PCI_bus_write( &UNIVERSE->VSI0_BS, 0x04000000 );
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/*
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* Set VMEbus Slave Image 0 Bound Address to 0x05000000 on VSI0_BD register.
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*/
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PCI_bus_write( &UNIVERSE->VSI0_BD, 0x05000000 );
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/*
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* VMEbus Slave Image 0 Translation Offset to 0x7C000000 on VSI0_TO
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* register. Map the VME base address 0x4000000 to local memory address 0x0
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*/
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PCI_bus_write( &UNIVERSE->VSI0_TO, 0x7C000000 );
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/*
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* Set the VMEbus Slave Image 0 Control register with write posted,
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* read prefetch and AM code set for program, data, supervisor and user mode
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*/
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PCI_bus_write( &UNIVERSE->VSI0_CTL, 0xE0F20000 );
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#endif
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/*
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* Set the VMEbus Master Control register with retry forever, 256 bytes
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* posted write transfer count, VMEbus request level 3, RWD, PCI 32 bytes
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* aligned burst size and PCI bus number to be zero
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*/
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PCI_bus_write( &UNIVERSE->MAST_CTL, 0x01C00000 );
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/*
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* VMEbus DMA Transfer Control register with 32 bit VMEbus Maximum Data
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* width, A32 VMEbus Address Space, AM code to be data, none-privilleged,
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* single and BLT cycles on VME bus and 64-bit PCI Bus Transactions enable
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PCI_bus_write( &UNIVERSE->DCTL, 0x00820180 );
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*/
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PCI_bus_write( &UNIVERSE->LSI0_CTL, 0x80700040 );
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PCI_bus_write( &UNIVERSE->LSI0_BS, 0x04000000 );
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PCI_bus_write( &UNIVERSE->LSI0_BD, 0x05000000 );
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PCI_bus_write( &UNIVERSE->LSI0_TO, 0x7C000000 );
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#if 0
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/*
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* Set the PCI Slave Image 0 Control register with posted write enable,
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* 32 bit data width, A32 VMEbus address base, AM code to be data,
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* none-privilleged, single and BLT cycles on VME bus with PCI
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* bus memory space.
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PCI_bus_write( &UNIVERSE->LSI0_CTL, 0xC0820100 );
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*/
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PCI_bus_write( &UNIVERSE->LSI0_CTL, 0x80700040 );
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/*
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* Set the PCI Slave Image 0 Base Address to be
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* 0x0 on LSI0_BS register.
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*/
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PCI_bus_write( &UNIVERSE->LSI0_BS, 0x00FF0000 );
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/*
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* Set the PCI Slave Image 0 Bound Address to be
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* 0xFFFFF000 on VSI0_BD register.
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*/
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PCI_bus_write( &UNIVERSE->LSI0_BD, 0x00FFF000 );
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/*
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* Set the PCI Slave Image 0 Translation Offset to be
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* 0x0 on VSI0_TO register.
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* Note: If the actual VME address is bigger than 0x40000000, we need
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* to set the PCI Slave Image 0 Translation Offset = 0x40000000
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* register.
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* i.e. if actual VME ADRR = 0x50000000, then we
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* need to subtract it by 0x40000000 and set
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* the LSI0_T0 register to be 0x40000000 and then
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* perform a PCI data access by adding 0xC0000000 to
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* 0x10000000 -- which is came form the result of
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* (0x50000000 - 0x40000000).
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*/
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PCI_bus_write( &UNIVERSE->LSI0_TO, 0x0 );
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#endif
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/*
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* Remove the Universe from VMEbus BI-Mode (bus-isolation). Once out of
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* BI-Mode VMEbus accesses can be made.
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*/
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universe_temp_value = PCI_bus_read( &UNIVERSE->MISC_CTL );
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if (universe_temp_value & 0x100000)
|
308 |
|
|
PCI_bus_write( &UNIVERSE->MISC_CTL,(universe_temp_value | ~0xFF0FFFFF));
|
309 |
|
|
}
|
310 |
|
|
|
311 |
|
|
/*
|
312 |
|
|
* Set the slave VME base address to the specified base address.
|
313 |
|
|
* Note: Lower 12 bits[11:0] will be masked out prior to setting the VMEbus
|
314 |
|
|
* Slave Image 0 registers.
|
315 |
|
|
*/
|
316 |
|
|
void set_vme_base_address (
|
317 |
|
|
rtems_unsigned32 base_address
|
318 |
|
|
)
|
319 |
|
|
{
|
320 |
|
|
volatile rtems_unsigned32 temp;
|
321 |
|
|
|
322 |
|
|
/*
|
323 |
|
|
* Calculate the current size of the Slave VME image 0
|
324 |
|
|
*/
|
325 |
|
|
temp = ( PCI_bus_read( &UNIVERSE->VSI0_BD) & 0xFFFFF000) -
|
326 |
|
|
( PCI_bus_read( &UNIVERSE->VSI0_BS) & 0xFFFFF000);
|
327 |
|
|
|
328 |
|
|
/*
|
329 |
|
|
* Set the VMEbus Slave Image 0 Base Address to be
|
330 |
|
|
* the specifed base address on VSI0_BS register.
|
331 |
|
|
*/
|
332 |
|
|
PCI_bus_write( &UNIVERSE->VSI0_BS, (base_address & 0xFFFFF000) );
|
333 |
|
|
|
334 |
|
|
/*
|
335 |
|
|
* Update the VMEbus Slave Image 0 Bound Address.
|
336 |
|
|
*/
|
337 |
|
|
PCI_bus_write( &UNIVERSE->VSI0_BD, temp );
|
338 |
|
|
|
339 |
|
|
/*
|
340 |
|
|
* Update the VMEbus Slave Image 0 Translation Offset
|
341 |
|
|
*/
|
342 |
|
|
temp = 0xFFFFFFFF - (base_address & 0xFFFFF000) + 1 + 0x80000000;
|
343 |
|
|
PCI_bus_write( &UNIVERSE->VSI0_TO, temp );
|
344 |
|
|
}
|
345 |
|
|
|
346 |
|
|
/*
|
347 |
|
|
* Gets the VME base address
|
348 |
|
|
*/
|
349 |
|
|
rtems_unsigned32 get_vme_base_address ()
|
350 |
|
|
{
|
351 |
|
|
volatile rtems_unsigned32 temp;
|
352 |
|
|
|
353 |
|
|
temp = PCI_bus_read( &UNIVERSE->VSI0_BS );
|
354 |
|
|
temp &= 0xFFFFF000;
|
355 |
|
|
return (temp);
|
356 |
|
|
}
|
357 |
|
|
|
358 |
|
|
rtems_unsigned32 get_vme_slave_size()
|
359 |
|
|
{
|
360 |
|
|
volatile rtems_unsigned32 temp;
|
361 |
|
|
temp = PCI_bus_read( &UNIVERSE->VSI0_BD);
|
362 |
|
|
temp &= 0xFFFFF000;
|
363 |
|
|
temp = temp - get_vme_base_address ();
|
364 |
|
|
return temp;
|
365 |
|
|
}
|
366 |
|
|
|
367 |
|
|
/*
|
368 |
|
|
* Set the size of the VME slave image
|
369 |
|
|
* Note: The maximum size is up to 24 M bytes. (00000000 - 017FFFFF)
|
370 |
|
|
*/
|
371 |
|
|
void set_vme_slave_size (rtems_unsigned32 size)
|
372 |
|
|
{
|
373 |
|
|
volatile rtems_unsigned32 temp;
|
374 |
|
|
|
375 |
|
|
if (size<0)
|
376 |
|
|
size = 0;
|
377 |
|
|
|
378 |
|
|
if (size > 0x17FFFFF)
|
379 |
|
|
size = 0x17FFFFF;
|
380 |
|
|
|
381 |
|
|
/*
|
382 |
|
|
* Read the VME slave image base address
|
383 |
|
|
*/
|
384 |
|
|
temp = get_vme_base_address ();
|
385 |
|
|
|
386 |
|
|
/*
|
387 |
|
|
* Update the VMEbus Slave Image 0 Bound Address.
|
388 |
|
|
*/
|
389 |
|
|
temp = temp + (size & 0xFFFFF000);
|
390 |
|
|
PCI_bus_write( &UNIVERSE->VSI0_BD, temp );
|
391 |
|
|
}
|
392 |
|
|
|
393 |
|
|
#if 0
|
394 |
|
|
/* XXXXX */
|
395 |
|
|
/*
|
396 |
|
|
* Returns the 16 bit location specified by vme_ptr, which must be a
|
397 |
|
|
* pointer to VME D16 space
|
398 |
|
|
*/
|
399 |
|
|
rtems_unsigned16 get_vme(
|
400 |
|
|
rtems_unsigned16 *vme_ptr
|
401 |
|
|
)
|
402 |
|
|
{
|
403 |
|
|
rtems_unsigned16 result;
|
404 |
|
|
|
405 |
|
|
if (vme_ptr > (rtems_unsigned16 *)0x3EFFFFFF)
|
406 |
|
|
{
|
407 |
|
|
/*
|
408 |
|
|
* LSI0_TO register to 0x3EFFF000 if it had not been updated already
|
409 |
|
|
*/
|
410 |
|
|
if (( PCI_bus_read( &UNIVERSE->LSI0_TO ) & 0xFFFFF000) != 0x3EFFF000)
|
411 |
|
|
PCI_bus_write( &UNIVERSE->LSI0_TO, 0x3EFFF000 );
|
412 |
|
|
|
413 |
|
|
result = (*(rtems_unsigned16 *)(
|
414 |
|
|
((rtems_unsigned32)vme_ptr - 0x3EFFF000)+
|
415 |
|
|
PPCN_60X_PCI_MEM_BASE) );
|
416 |
|
|
}
|
417 |
|
|
else
|
418 |
|
|
result = (*(rtems_unsigned16 *)
|
419 |
|
|
((rtems_unsigned32)vme_ptr+PPCN_60X_PCI_MEM_BASE));
|
420 |
|
|
|
421 |
|
|
return result;
|
422 |
|
|
}
|
423 |
|
|
|
424 |
|
|
/*
|
425 |
|
|
* Stores the 16 bit word at the location specified by vme_ptr, which must
|
426 |
|
|
* be a pointer to VME D16 space
|
427 |
|
|
*/
|
428 |
|
|
void put_vme(
|
429 |
|
|
rtems_unsigned16 *vme_ptr,
|
430 |
|
|
rtems_unsigned16 value
|
431 |
|
|
)
|
432 |
|
|
{
|
433 |
|
|
|
434 |
|
|
if (vme_ptr > (rtems_unsigned16 *)0x3EFFFFFF) {
|
435 |
|
|
/*
|
436 |
|
|
* LSI0_TO register to 0x3EFFF000 if it had not been updated already
|
437 |
|
|
*/
|
438 |
|
|
if (( PCI_bus_read( &UNIVERSE->LSI0_TO) & 0xFFFFF000) != 0x3EFFF000)
|
439 |
|
|
PCI_bus_write( &UNIVERSE->LSI0_TO, 0x3EFFF000 );
|
440 |
|
|
|
441 |
|
|
*(rtems_unsigned16 *) (((rtems_unsigned32)vme_ptr - 0x3EFFF000) +
|
442 |
|
|
PPCN_60X_PCI_MEM_BASE) = value;
|
443 |
|
|
}
|
444 |
|
|
else
|
445 |
|
|
*(rtems_unsigned16 *)((rtems_unsigned32)vme_ptr +
|
446 |
|
|
PPCN_60X_PCI_MEM_BASE) = value;
|
447 |
|
|
}
|
448 |
|
|
#endif
|
449 |
|
|
|