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##=============================================================================
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##
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## mbx.S
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##
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## MBX board hardware setup
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##
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##=============================================================================
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#####ECOSGPLCOPYRIGHTBEGIN####
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## -------------------------------------------
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## This file is part of eCos, the Embedded Configurable Operating System.
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## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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##
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## eCos is free software; you can redistribute it and/or modify it under
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## the terms of the GNU General Public License as published by the Free
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## Software Foundation; either version 2 or (at your option) any later version.
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##
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## eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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## WARRANTY; without even the implied warranty of MERCHANTABILITY or
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## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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## for more details.
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##
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## You should have received a copy of the GNU General Public License along
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## with eCos; if not, write to the Free Software Foundation, Inc.,
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## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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##
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## As a special exception, if other files instantiate templates or use macros
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## or inline functions from this file, or you compile this file and link it
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## with other works to produce a work based on this file, this file does not
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## by itself cause the resulting work to be covered by the GNU General Public
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## License. However the source code for this file must still be made available
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## in accordance with section (3) of the GNU General Public License.
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##
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## This exception does not invalidate any other reasons why a work based on
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## this file might be covered by the GNU General Public License.
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##
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## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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## at http://sources.redhat.com/ecos/ecos-license/
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## -------------------------------------------
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#####ECOSGPLCOPYRIGHTEND####
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##=============================================================================
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#######DESCRIPTIONBEGIN####
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##
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## Author(s): hmt
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## Contributors:hmt
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## Date: 1999-06-08
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## Purpose: MBX board hardware setup
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## Description: This file contains any code needed to initialize the
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## hardware on a MBX860 or 821 PowerPC board.
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##
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######DESCRIPTIONEND####
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##
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##=============================================================================
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#include
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#include
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#include
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#include
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59 |
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#include /* register symbols et al */
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#include /* on-chip resource layout, special */
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/* registers, IMM layout... */
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#include /* more of the same */
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#------------------------------------------------------------------------------
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# this is kept thus for commonality with CygMon code
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#if 40 == CYGHWR_HAL_POWERPC_BOARD_SPEED
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# define __40MHZ 1
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#elif 50 == CYGHWR_HAL_POWERPC_BOARD_SPEED
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# define __50MHZ 1
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#else
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# error Bad Board speed defined: see CYGBLD_HAL_PLATFORM_H
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#endif
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#------------------------------------------------------------------------------
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# this is controlled with one define for tidiness:
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# (and it is undefined by default)
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//#define CYGPRI_RAM_START_PROGRAMS_UPMS
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#if defined(CYG_HAL_STARTUP_ROM) || defined(CYGPRI_RAM_START_PROGRAMS_UPMS)
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# define CYGPRI_DO_PROGRAM_UPMS
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#endif
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#if defined(CYGPRI_RAM_START_PROGRAMS_UPMS) && defined(CYGSEM_HAL_ROM_MONITOR)
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/* use old tables in a StubROM build iff RAM start will reprogram them */
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# define CYGPRI_USE_OLD_UPM_TABLES
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#endif
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/* The intention is that we only set up the UPMs in ROM start, be it actual
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* ROM application start or Stub ROMs that we built from the same sources.
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*
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* The alternative approach - in which we have reliability doubts - is to
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* program the UPMs with *old* timing data in StubROM start, then
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* *reprogram* them with *new* timing data in RAM start - and of course
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* program with *new* timing data in plain ROM application start.
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* (Re-programming from new to new timing data fails - hence the suspicion
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* of reprogramming _at_all_, hence this private configuration)
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*
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* With CYGPRI_RAM_START_PROGRAMS_UPMS left undefined, the former behaviour
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* - programming the UPMs exactly once - is obtained. Define it to get the
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* latter, untrusted behaviour.
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*/
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#------------------------------------------------------------------------------
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// LED macro uses r3, r5: r4 left alone
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#define LED( x ) \
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lwi r5,0xfa100001; \
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lwi r3,((x) & 0xe); \
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stb r3,0(r5)
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#------------------------------------------------------------------------------
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FUNC_START( hal_hardware_init )
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# Throughout this routine, r4 is the base address of the control
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# registers. r3 and r5 are scratch in general.
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lwi r4,CYGARC_REG_IMM_BASE # base address of control registers
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mtspr CYGARC_REG_IMMR,r4
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LED( 0 ) # turn all LEDs on
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#define CACHE_UNLOCKALL 0x0a00
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#define CACHE_DISABLE 0x0400
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#define CACHE_INVALIDATEALL 0x0c00
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#define CACHE_ENABLE 0x0200
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#define CACHE_ENABLEBIT 0x8000
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#define CACHE_FORCEWRITETHROUGH 0x0100
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#define CACHE_NOWRITETHROUGH 0x0300
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#define CACHE_CLEAR_LE_SWAP 0x0700
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# DATA CACHE
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mfspr r3,CYGARC_REG_DC_CST /* clear error bits */
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lis r3,CACHE_UNLOCKALL
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sync
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mtspr CYGARC_REG_DC_CST,r3 /* unlock all lines */
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lis r3,CACHE_INVALIDATEALL
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sync
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mtspr CYGARC_REG_DC_CST,r3 /* invalidate all lines */
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lis r3,CACHE_DISABLE
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sync
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mtspr CYGARC_REG_DC_CST,r3 /* disable */
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lis r3,CACHE_FORCEWRITETHROUGH
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sync
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mtspr CYGARC_REG_DC_CST,r3 /* set force-writethrough mode */
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lis r3,CACHE_CLEAR_LE_SWAP
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sync
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mtspr CYGARC_REG_DC_CST,r3 /* clear little-endian swap mode */
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/* (dunno what this is, but it sounds like a bad thing) */
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# INSTRUCTION CACHE (no writeback modes)
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mfspr r3,CYGARC_REG_IC_CST /* clear error bits */
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lis r3,CACHE_UNLOCKALL
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mtspr CYGARC_REG_IC_CST,r3 /* unlock all lines */
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isync
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lis r3,CACHE_INVALIDATEALL
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mtspr CYGARC_REG_IC_CST,r3 /* invalidate all lines */
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isync
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lis r3,CACHE_DISABLE
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mtspr CYGARC_REG_IC_CST,r3 /* disable */
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isync
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sync
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/*
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* SIU Initialization.
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*/
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/* lwi r3,0x0062A900*/
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/* lwi r3,0x006A2900*/
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lwi r3,0x00602400
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stw r3,SIUMCR(r4)
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/*
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* Enable bus monitor. Disable Watchdog timer.
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*/
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lwi r3,0xffffff88
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stw r3,SYPCR(r4)
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/*
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* Clear REFA & REFB. Enable but freeze timebase.
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*/
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lwi r3,0x00c2
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sth r3,TBSCR(r4)
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/*
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* Unlock some RTC registers (see section 5.11.2)
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*/
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lwi r3,0x55ccaa33
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stw r3,RTCSCK(r4)
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stw r3,RTCK(r4)
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stw r3,RTSECK(r4)
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stw r3,RTCALK(r4)
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/*
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* Clear SERC & ALR. RTC runs on freeze. Enable RTC.
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*/
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li r3,0x00c3
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sth r3,RTCSC(r4)
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/*
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209 |
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* Clear periodic timer interrupt status.
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* Enable periodic timer and stop it on freeze.
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*/
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li r3,0x0083
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sth r3,PISCR(r4)
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#ifdef CYGPRI_DO_PROGRAM_UPMS
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/*
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217 |
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* Perform UPM programming by writing to its 64 RAM locations.
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218 |
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* Note that UPM initialization must be done before the Bank Register
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219 |
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* initialization. Otherwise, system may hang when writing to Bank
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* Registers in certain cases.
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*/
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lis r5,__upmtbl_start@h
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ori r5,r5,__upmtbl_start@l
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lis r6,__upmtbl_end@h
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ori r6,r6,__upmtbl_end@l
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sub r7,r6,r5 /* size of table */
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srawi r7,r7,2 /* in words */
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li r6,0x0000 /* Command - OP=Write, UPMA, MAD=0 */
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1:
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lwz r3,0(r5) /* get data from table */
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stw r3,MDR(r4) /* store the data to MD register */
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stw r6,MCR(r4) /* issue command to MCR register */
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addi r5,r5,4 /* next entry in the table */
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addi r6,r6,1 /* next MAD address */
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cmpw r6,r7 /* done yet ? */
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blt 1b
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#endif // CYGPRI_DO_PROGRAM_UPMS
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/*
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241 |
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* Set refresh timer prescaler to divide by 8.
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*/
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243 |
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li r3,PTP_DIV32
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sth r3,MPTPR(r4)
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246 |
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/*
|
247 |
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* See Table 15-16 MPC860 User's Manual.
|
248 |
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*
|
249 |
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* PTA = 0x13 (clock dependent)
|
250 |
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* PTAE = enabled
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251 |
|
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* AMA = 0
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252 |
|
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* DSA = 2 cycle disable
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253 |
|
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* G0CLA = A12
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254 |
|
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* GPL_A4DIS = 0
|
255 |
|
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* RLFA = 0
|
256 |
|
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* WLFA = 0
|
257 |
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* TLFA = 0
|
258 |
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*/
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259 |
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#ifdef __50MHZ
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260 |
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lwi r3,0x18801000
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#else
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262 |
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lwi r3,0x13801000
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263 |
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#endif
|
264 |
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stw r3,MAMR(r4)
|
265 |
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|
266 |
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/*
|
267 |
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* Base Register initialization.
|
268 |
|
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*/
|
269 |
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/* BOOT ROM */
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270 |
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lwi r3,0xfe000401 # 8-bit, GPCM
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271 |
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#ifdef __50MHZ
|
272 |
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lwi r5,0xff800960 /* for 120nS devices, else 0xff800940 */
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273 |
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#else
|
274 |
|
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lwi r5,0xff800930
|
275 |
|
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#endif
|
276 |
|
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#ifdef CYGHWR_HAL_POWERPC_MBX_BOOT_32BIT_FLASH
|
277 |
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// Then the 32-bit FLASH device is on CS0, the "ROM" is on CS7
|
278 |
|
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stw r3,BR7(r4)
|
279 |
|
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stw r5,OR7(r4)
|
280 |
|
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#else // Boot from 8-bit ROM - the default, on CS0
|
281 |
|
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stw r3,BR0(r4)
|
282 |
|
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stw r5,OR0(r4)
|
283 |
|
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#endif
|
284 |
|
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/* ONBOARD DRAM */
|
285 |
|
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lwi r3,0x00000081 # 32-bit, UPMA
|
286 |
|
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lwi r5,0xffc00400
|
287 |
|
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stw r3,BR1(r4)
|
288 |
|
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stw r5,OR1(r4)
|
289 |
|
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|
290 |
|
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/* DRAM DIMM BANK0 */
|
291 |
|
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lwi r3,0x00000080 # 32-bit, UPMA, INVALID
|
292 |
|
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lwi r5,0x00000400
|
293 |
|
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stw r3,BR2(r4)
|
294 |
|
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stw r5,OR2(r4)
|
295 |
|
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|
296 |
|
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/* DRAM DIMM BANK1 */
|
297 |
|
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lwi r3,0x00000080 # 32-bit, UPMA, INVALID
|
298 |
|
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lwi r5,0x00000400
|
299 |
|
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stw r3,BR3(r4)
|
300 |
|
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stw r5,OR3(r4)
|
301 |
|
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|
302 |
|
|
/* NVRAM */
|
303 |
|
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lwi r3,0xfa000401 # 8-bit, GPCM
|
304 |
|
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#ifdef __50MHZ
|
305 |
|
|
lwi r5,0xffe00930
|
306 |
|
|
#else
|
307 |
|
|
lwi r5,0xffe00920
|
308 |
|
|
#endif
|
309 |
|
|
stw r3,BR4(r4)
|
310 |
|
|
stw r5,OR4(r4)
|
311 |
|
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|
312 |
|
|
/* PCI BRIDGE MEM/IO */
|
313 |
|
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lwi r3,0x80000001 # 32-bit, GPCM
|
314 |
|
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lwi r5,0xa0000108
|
315 |
|
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stw r3,BR5(r4)
|
316 |
|
|
stw r5,OR5(r4)
|
317 |
|
|
|
318 |
|
|
/* PCI BRIDGE REGISTERS */
|
319 |
|
|
lwi r3,0xfa210001 # 32-bit, GPCM
|
320 |
|
|
lwi r5,0xffff0108
|
321 |
|
|
stw r3,BR6(r4)
|
322 |
|
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stw r5,OR6(r4)
|
323 |
|
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|
324 |
|
|
/* FLASH */
|
325 |
|
|
lwi r3,0xfc000001 # 32-bit, GPCM
|
326 |
|
|
#ifdef __50MHZ
|
327 |
|
|
lwi r5,0xff800940
|
328 |
|
|
#else
|
329 |
|
|
lwi r5,0xff800930
|
330 |
|
|
#endif
|
331 |
|
|
#ifdef CYGHWR_HAL_POWERPC_MBX_BOOT_32BIT_FLASH
|
332 |
|
|
// Then the 32-bit FLASH device is on CS0, the "ROM" is on CS7
|
333 |
|
|
stw r3,BR0(r4)
|
334 |
|
|
stw r5,OR0(r4)
|
335 |
|
|
#else // Boot from 8-bit ROM - so the 32-bit FLASH is on CS7
|
336 |
|
|
stw r3,BR7(r4)
|
337 |
|
|
stw r5,OR7(r4)
|
338 |
|
|
#endif
|
339 |
|
|
/*
|
340 |
|
|
* SYSTEM CLOCK CONTROL REGISTER
|
341 |
|
|
*
|
342 |
|
|
* COM (1:2) = 0
|
343 |
|
|
* TBS (6) = 1
|
344 |
|
|
* RTDIV (7) = 0
|
345 |
|
|
* RTSEL (8) = 0
|
346 |
|
|
* CRQEN (9) = 0
|
347 |
|
|
* PRQEN (10) = 0
|
348 |
|
|
* EBDF (13:14) = 0
|
349 |
|
|
* DFSYNC(17:18) = 0
|
350 |
|
|
* DFBRG (19:20) = 0
|
351 |
|
|
* DFNL (21:23) = 0
|
352 |
|
|
* DFNH (24:26) = 0
|
353 |
|
|
*/
|
354 |
|
|
lwi r3,0x02000000
|
355 |
|
|
stw r3,SCCR(r4)
|
356 |
|
|
|
357 |
|
|
/*
|
358 |
|
|
* The following sets up a 40MHz CPU clock.
|
359 |
|
|
* I've seen 2 variations of MBX boards. One
|
360 |
|
|
* uses a direct feed (1:1) 40MHz clock on
|
361 |
|
|
* EXTCLK inputs. The other uses a 32KHz
|
362 |
|
|
* oscillator on the OSCM inputs.
|
363 |
|
|
*/
|
364 |
|
|
lwz r3,PLPRCR(r4)
|
365 |
|
|
rlwinm r3,r3,12,20,31
|
366 |
|
|
cmpwi r3,0
|
367 |
|
|
beq 1f
|
368 |
|
|
|
369 |
|
|
/*
|
370 |
|
|
* PLL, LOW POWER, AND RESET CONTROL REGISTER
|
371 |
|
|
*
|
372 |
|
|
* MF (0:11) = depends on source clock
|
373 |
|
|
* SPLSS (16) = 1
|
374 |
|
|
* TEXPS (17) = 1
|
375 |
|
|
* TMIST (19) = 1
|
376 |
|
|
* CSRC (21) = 0
|
377 |
|
|
* LPM (22:23) = 0
|
378 |
|
|
* CSR (24) = 0
|
379 |
|
|
* LOLRE (25) = 0
|
380 |
|
|
* FIOPD (26) = 0
|
381 |
|
|
*/
|
382 |
|
|
/* MF (0:11) = 0x4c4 = 1220 = (40MHz/32.768KHz) */
|
383 |
|
|
#ifdef __50MHZ
|
384 |
|
|
lwi r3,0x5f50d000
|
385 |
|
|
#else
|
386 |
|
|
lwi r3,0x4c40d000
|
387 |
|
|
#endif
|
388 |
|
|
b 2f
|
389 |
|
|
1:
|
390 |
|
|
/* MF (0:11) = 0x000 = 1 = (1:1) */
|
391 |
|
|
lwi r3,0x0000d000
|
392 |
|
|
2:
|
393 |
|
|
stw r3,PLPRCR(r4)
|
394 |
|
|
|
395 |
|
|
# mask interrupt sources in the SIU
|
396 |
|
|
lis r2,0
|
397 |
|
|
lwi r3,CYGARC_REG_IMM_SIMASK
|
398 |
|
|
stw r2,0(r3)
|
399 |
|
|
|
400 |
|
|
# set the decrementer to maxint
|
401 |
|
|
lwi r2,0
|
402 |
|
|
not r2,r2
|
403 |
|
|
mtdec r2
|
404 |
|
|
|
405 |
|
|
# and enable the timebase and decrementer to make sure
|
406 |
|
|
li r2,1 # TBEnable and not TBFreeze
|
407 |
|
|
lwi r3,CYGARC_REG_IMM_TBSCR
|
408 |
|
|
sth r2,0(r3)
|
409 |
|
|
|
410 |
|
|
LED( 8 ) # turn red led off
|
411 |
|
|
|
412 |
|
|
#ifdef CYG_HAL_STARTUP_ROM
|
413 |
|
|
# move return address to where the ROM is
|
414 |
|
|
mflr r3
|
415 |
|
|
andi. r3,r3,0xffff
|
416 |
|
|
oris r3,r3,CYGMEM_REGION_rom>>16
|
417 |
|
|
mtlr r3
|
418 |
|
|
#endif
|
419 |
|
|
|
420 |
|
|
blr
|
421 |
|
|
FUNC_END( hal_hardware_init )
|
422 |
|
|
|
423 |
|
|
|
424 |
|
|
#ifdef CYGPRI_DO_PROGRAM_UPMS
|
425 |
|
|
# -------------------------------------------------------------------------
|
426 |
|
|
# this table initializes the User Programmable Machine (UPM) nastiness
|
427 |
|
|
# in the QUICC to control DRAM timing.
|
428 |
|
|
|
429 |
|
|
__upmtbl_start:
|
430 |
|
|
|
431 |
|
|
#ifdef __25MHZ
|
432 |
|
|
/* UPM contents for 25MHz clk. DRAM: EDO,4K,60ns */
|
433 |
|
|
|
434 |
|
|
/* Single read. (offset 0 in upm RAM) */
|
435 |
|
|
.long 0xcfffe004, 0x0fffe404, 0x08af2c04, 0x03af2c08
|
436 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
437 |
|
|
|
438 |
|
|
/* Burst read. (offset 8 in upm RAM) */
|
439 |
|
|
.long 0xcfffe004, 0x0fffe404, 0x08af2c04, 0x03af2c08
|
440 |
|
|
.long 0x08af2c04, 0x03af2c08, 0x08af2c04, 0x03af2c08
|
441 |
|
|
.long 0x08af2c04, 0x03af2c08, 0xffffec07, 0xffffec07
|
442 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
443 |
|
|
|
444 |
|
|
/* Single write. (offset 18 in upm RAM) */
|
445 |
|
|
.long 0xcfffe004, 0x0fffa404, 0x08ff2c00, 0x33ff6c0f
|
446 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
447 |
|
|
|
448 |
|
|
/* Burst write. (offset 20 in upm RAM) */
|
449 |
|
|
.long 0xcfffe004, 0x0fffa404, 0x08ff2c00, 0x03ff2c0c
|
450 |
|
|
.long 0x08ff2c00, 0x03ff2c0c, 0x08ff2c00, 0x03ff2c0c
|
451 |
|
|
.long 0x08ff2c00, 0x33ff6c0f, 0xffffec07, 0xffffec07
|
452 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
453 |
|
|
|
454 |
|
|
/* Refresh (offset 30 in upm RAM) */
|
455 |
|
|
.long 0xc0ffec04, 0x07ffec04, 0x3fffec07, 0xffffec07
|
456 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
457 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
458 |
|
|
|
459 |
|
|
/* Exception. (offset 3c in upm RAM) */
|
460 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
461 |
|
|
#endif
|
462 |
|
|
|
463 |
|
|
#ifdef __33MHZ
|
464 |
|
|
/* UPM contents for 33MHz clk. DRAM: EDO,4K,60ns */
|
465 |
|
|
|
466 |
|
|
/* Single read. (offset 0 in upm RAM) */
|
467 |
|
|
.long 0xcfffe004, 0x0fffe404, 0x08af2c04, 0x03af2c08
|
468 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
469 |
|
|
|
470 |
|
|
/* Burst read. (offset 8 in upm RAM) */
|
471 |
|
|
.long 0xcfffe004, 0x0fffe404, 0x08af2c04, 0x03af2c08
|
472 |
|
|
.long 0x08af2c04, 0x03af2c08, 0x08af2c04, 0x03af2c08
|
473 |
|
|
.long 0x08af2c04, 0x03af2c08, 0xffffec07, 0xffffec07
|
474 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
475 |
|
|
|
476 |
|
|
/* Single write. (offset 18 in upm RAM) */
|
477 |
|
|
.long 0xcfffe004, 0x0fff2404, 0x08ff2c00, 0x33ff6c07
|
478 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
479 |
|
|
|
480 |
|
|
/* Burst write. (offset 20 in upm RAM) */
|
481 |
|
|
.long 0xcfffe004, 0x0fff2404, 0x08ff2c00, 0x03ff2c0c
|
482 |
|
|
.long 0x08ff2c00, 0x03ff2c0c, 0x08ff2c00, 0x03ff2c0c
|
483 |
|
|
.long 0x08ff2c00, 0x33ff6c07, 0xffffec07, 0xffffec07
|
484 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
485 |
|
|
|
486 |
|
|
/* Refresh (offset 30 in upm RAM) */
|
487 |
|
|
.long 0xc0ffec04, 0x03ffec04, 0x1fffec07, 0xffffec07
|
488 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
489 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
490 |
|
|
|
491 |
|
|
/* Exception. (offset 3c in upm RAM) */
|
492 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
493 |
|
|
#endif
|
494 |
|
|
|
495 |
|
|
#ifdef CYGPRI_USE_OLD_UPM_TABLES
|
496 |
|
|
|
497 |
|
|
// BUT new tables received from motorola are further down
|
498 |
|
|
|
499 |
|
|
// And I just discovered a good reason for using the NEW TABLES:
|
500 |
|
|
// with the old tables, the cache zero-a-line command does not
|
501 |
|
|
// work. It only zeros the first 12 bytes of the line, not all 16.
|
502 |
|
|
// This may be related to having the cache set up write-through, as
|
503 |
|
|
// seems necessary to have it work on this platform.
|
504 |
|
|
|
505 |
|
|
#ifdef __40MHZ
|
506 |
|
|
/* UPM contents for 40MHz clk. DRAM: EDO,4K,60ns */
|
507 |
|
|
|
508 |
|
|
/* Single read. (offset 0 in upm RAM) */
|
509 |
|
|
.long 0xefffe004, 0x0fffe004, 0x0eefac04, 0x00af2c04
|
510 |
|
|
.long 0x03af2c08, 0xffffec07, 0xffffec07, 0xffffec07
|
511 |
|
|
|
512 |
|
|
/* Burst read. (offset 8 in upm RAM) */
|
513 |
|
|
.long 0xefffe004, 0x0fffe004, 0x0eefac04, 0x00af2c04
|
514 |
|
|
.long 0x03af2c08, 0x0caf2c04, 0x00af2c04, 0x03af2c08
|
515 |
|
|
.long 0x0caf2c04, 0x00af2c04, 0x03af2c08, 0x0caf2c04
|
516 |
|
|
.long 0x00af2c04, 0x03af2c08, 0xffffec07, 0xffffec07
|
517 |
|
|
|
518 |
|
|
/* Single write. (offset 18 in upm RAM) */
|
519 |
|
|
.long 0xefffe004, 0x0fffa004, 0x0eff2c04, 0x00ff2c00
|
520 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
521 |
|
|
|
522 |
|
|
/* Burst write. (offset 20 in upm RAM) */
|
523 |
|
|
.long 0xefffe004, 0x0fffa004, 0x0eff2c04, 0x00ff2c00
|
524 |
|
|
.long 0x0fff2c0c, 0x0cff2c00, 0x03ff2c0c, 0x0cff2c00
|
525 |
|
|
.long 0x03ff2c0c, 0x0cff2c00, 0x33ff6c07, 0xffffec07
|
526 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
527 |
|
|
|
528 |
|
|
/* Refresh (offset 30 in upm RAM) */
|
529 |
|
|
.long 0xf0ffec04, 0x00ffec04, 0x0fffec04, 0x0fffec04
|
530 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
531 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
532 |
|
|
|
533 |
|
|
/* Exception. (offset 3c in upm RAM) */
|
534 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
535 |
|
|
#endif
|
536 |
|
|
|
537 |
|
|
#ifdef __50MHZ
|
538 |
|
|
/* UPM contents for 50MHZ clk. DRAM: EDO,4K,60ns */
|
539 |
|
|
|
540 |
|
|
/* Single read. (offset 0 in upm RAM) */
|
541 |
|
|
.long 0xffffe004, 0x0fffe004, 0x0fffe404, 0x0cafac04
|
542 |
|
|
.long 0x00af2c04, 0x0faf2c08, 0xffffec07, 0xffffec07
|
543 |
|
|
|
544 |
|
|
/* Burst read. (offset 8 in upm RAM) */
|
545 |
|
|
.long 0xffffe004, 0x0fffe004, 0x0fffe404, 0x0cafac04
|
546 |
|
|
.long 0x00af2c04, 0x0faf2c08, 0x0caf2c04, 0x00af2c04
|
547 |
|
|
.long 0x0faf2c08, 0x0caf2c04, 0x00af2c04, 0x0faf2c08
|
548 |
|
|
.long 0x0caf2c04, 0x00af2c04, 0x0faf2c08, 0xffffec07
|
549 |
|
|
|
550 |
|
|
/* Single write. (offset 18 in upm RAM) */
|
551 |
|
|
.long 0xffffe004, 0x0fffe004, 0x0fffa404, 0x0cff2c04
|
552 |
|
|
.long 0x00ff2c00, 0xffffec07, 0xffffec07, 0xffffec07
|
553 |
|
|
|
554 |
|
|
/* Burst write. (offset 20 in upm RAM) */
|
555 |
|
|
.long 0xffffe004, 0x0fffe004, 0x0fffa404, 0x0cff2c04
|
556 |
|
|
.long 0x00ff2c00, 0x0fff2c08, 0x0cff2c04, 0x00ff2c00
|
557 |
|
|
.long 0x0fff2c00, 0x0cff2c04, 0x00ff2c00, 0x0fff2c08
|
558 |
|
|
.long 0x0cff2c04, 0x00ff2c00, 0xffffec07, 0xffffec07
|
559 |
|
|
|
560 |
|
|
/* Refresh (offset 30 in upm RAM) */
|
561 |
|
|
.long 0xf0ffec04, 0xc0ffec04, 0x00ffec04, 0x0fffec04
|
562 |
|
|
.long 0x1fffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
563 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
564 |
|
|
|
565 |
|
|
/* Exception. (offset 3c in upm RAM) */
|
566 |
|
|
.long 0xffffec07, 0xffffec07, 0xffffec07, 0xffffec07
|
567 |
|
|
#endif
|
568 |
|
|
|
569 |
|
|
#else // !CYGPRI_USE_OLD_UPM_TABLES: use the NEW TABLES
|
570 |
|
|
|
571 |
|
|
// for RAM startup or ROM application when NOT making a stub rom,
|
572 |
|
|
// ie. CYGSEM_HAL_ROM_MONITOR not defined.
|
573 |
|
|
|
574 |
|
|
#ifdef __40MHZ
|
575 |
|
|
/* UPM contents for 40MHz clk. DRAM: EDO,4K,60ns */
|
576 |
|
|
.long 0xcfafc004, 0x0fafc404, 0x0caf0c04, 0x30af0c00
|
577 |
|
|
.long 0xf1bf4805, 0xffffc005, 0xffffc005, 0xffffc005
|
578 |
|
|
|
579 |
|
|
.long 0xcfafc004, 0x0fafc404, 0x0caf0c04, 0x03af0c08
|
580 |
|
|
.long 0x0caf0c04, 0x03af0c08, 0x0caf0c04, 0x03af0c08
|
581 |
|
|
.long 0x0caf0c04, 0x30af0c00, 0xf3bf4805, 0xffffc005
|
582 |
|
|
.long 0xffffc005, 0xffffc005, 0xffffc005, 0xffffc005
|
583 |
|
|
|
584 |
|
|
.long 0xcfff0004, 0x0fff0404, 0x0cff0c00, 0x33ff4804
|
585 |
|
|
.long 0xffffc005, 0xffffc005, 0xffffc005, 0xffffc005
|
586 |
|
|
|
587 |
|
|
.long 0xcfff0004, 0x0fff0404, 0x0cff0c00, 0x03ff0c0c
|
588 |
|
|
.long 0x0cff0c00, 0x03ff0c0c, 0x0cff0c00, 0x03ff0c0c
|
589 |
|
|
.long 0x0cff0c00, 0x33ff4804, 0xffffc005, 0xffffc005
|
590 |
|
|
.long 0xffffc005, 0xffffc005, 0xffffc005, 0xffffc005
|
591 |
|
|
|
592 |
|
|
.long 0xfcffc004, 0xc0ffc004, 0x01ffc004, 0x0fffc004
|
593 |
|
|
.long 0x3fffc004, 0xffffc005, 0xffffc005, 0xffffc005
|
594 |
|
|
.long 0xffffc005, 0xffffc005, 0xffffc005, 0xffffc005
|
595 |
|
|
|
596 |
|
|
.long 0xffffc007, 0xffffc007, 0xffffc007, 0xffffc007
|
597 |
|
|
#endif
|
598 |
|
|
|
599 |
|
|
#ifdef __50MHZ
|
600 |
|
|
/* UPM contents for 50MHZ clk. DRAM: EDO,4K,60ns */
|
601 |
|
|
|
602 |
|
|
.long 0xcfafc004, 0x0fafc404, 0x0caf8c04, 0x10af0c04
|
603 |
|
|
.long 0xf0af0c00, 0xf3bf4805, 0xffffc005, 0xffffc005
|
604 |
|
|
|
605 |
|
|
.long 0xcfafc004, 0x0fafc404, 0x0caf8c04, 0x00af0c04
|
606 |
|
|
.long 0x07af0c08, 0x0caf0c04, 0x01af0c04, 0x0faf0c08
|
607 |
|
|
.long 0x0caf0c04, 0x01af0c04, 0x0faf0c08, 0x0caf0c04
|
608 |
|
|
.long 0x10af0c04, 0xf0afc000, 0xf3bf4805, 0xffffc005
|
609 |
|
|
|
610 |
|
|
.long 0xcfff0004, 0x0fff0404, 0x0cff0c00, 0x13ff4804
|
611 |
|
|
.long 0xffffc004, 0xffffc005, 0xffffc005, 0xffffc005
|
612 |
|
|
|
613 |
|
|
.long 0xcfff0004, 0x0fff0404, 0x0cff0c00, 0x03ff0c0c
|
614 |
|
|
.long 0x0cff0c00, 0x03ff0c0c, 0x0cff0c00, 0x03ff0c0c
|
615 |
|
|
.long 0x0cff0c00, 0x13ff4804, 0xffffc004, 0xffffc005
|
616 |
|
|
.long 0xffffc005, 0xffffc005, 0xffffc005, 0xffffc005
|
617 |
|
|
|
618 |
|
|
.long 0xfcffc004, 0xc0ffc004, 0x01ffc004, 0x0fffc004
|
619 |
|
|
.long 0x1fffc004, 0xffffc004, 0xffffc005, 0xffffc005
|
620 |
|
|
.long 0xffffc005, 0xffffc005, 0xffffc005, 0xffffc005
|
621 |
|
|
|
622 |
|
|
.long 0xffffc007, 0xffffc007, 0xffffc007, 0xffffc007
|
623 |
|
|
#endif
|
624 |
|
|
#endif // OLD/NEW TABLES == CYGPRI_USE_OLD_UPM_TABLES or not.
|
625 |
|
|
// depending on CYGSEM_HAL_ROM_MONITOR and whether RAM
|
626 |
|
|
// start re-initializes.
|
627 |
|
|
|
628 |
|
|
__upmtbl_end:
|
629 |
|
|
#endif // CYGPRI_DO_PROGRAM_UPMS
|
630 |
|
|
|
631 |
|
|
FUNC_START(hal_mbx_set_led)
|
632 |
|
|
andi. r3,r3,0x0e
|
633 |
|
|
lwi r4,0xfa100001
|
634 |
|
|
stb r3,0(r4)
|
635 |
|
|
blr
|
636 |
|
|
FUNC_END(hal_mbx_set_led)
|
637 |
|
|
|
638 |
|
|
FUNC_START(hal_mbx_flash_led)
|
639 |
|
|
lwi r4,0xfa100001
|
640 |
|
|
1:
|
641 |
|
|
li r5,10
|
642 |
|
|
stb r5,0(r4)
|
643 |
|
|
|
644 |
|
|
lis r5,10
|
645 |
|
|
mtctr r5
|
646 |
|
|
2:
|
647 |
|
|
bdnz 2b
|
648 |
|
|
|
649 |
|
|
li r5,12
|
650 |
|
|
stb r5,0(r4)
|
651 |
|
|
|
652 |
|
|
lis r5,10
|
653 |
|
|
mtctr r5
|
654 |
|
|
3:
|
655 |
|
|
bdnz 3b
|
656 |
|
|
|
657 |
|
|
subi r3,r3,1
|
658 |
|
|
cmpwi r3,0
|
659 |
|
|
bge 1b
|
660 |
|
|
|
661 |
|
|
li r5,6
|
662 |
|
|
stb r5,0(r4)
|
663 |
|
|
|
664 |
|
|
lis r5,20
|
665 |
|
|
mtctr r5
|
666 |
|
|
4:
|
667 |
|
|
bdnz 4b
|
668 |
|
|
|
669 |
|
|
blr
|
670 |
|
|
FUNC_END(hal_mbx_flash_led)
|
671 |
|
|
|
672 |
|
|
|
673 |
|
|
#------------------------------------------------------------------------------
|
674 |
|
|
# end of mbx.S
|