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This commit is contained in:
Richard Barry 2008-08-14 11:07:50 +00:00
parent 6eec108bdd
commit aeea09e21e
2 changed files with 57 additions and 9 deletions
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59
Source/portable/GCC/ColdFire_V2/portasm.S
View file

@ -1,11 +1,59 @@
/*
FreeRTOS.org V5.0.3 - Copyright (C) 2003-2008 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS.org is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
***************************************************************************
* *
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
* and even write all or part of your application on your behalf. *
* See http://www.OpenRTOS.com for details of the services we provide to *
* expedite your project. *
* *
***************************************************************************
***************************************************************************
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/*
* File: mcf5xxx.s
* Purpose: Lowest level routines for all ColdFire processors.
*
* Notes:
*
* Function copied from mcf5xxx.S provided by FreeScale.
*
* ulPortSetIPL() and mcf5xxx_wr_cacr() copied with permission from FreeScale
* supplied source files.
*/
.global ulPortSetIPL
@ -25,6 +73,7 @@
.endm
.macro portRESTORE_CONTEXT
move.l pxCurrentTCB, %a0
move.l (%a0), %sp
movem.l (%sp), %d0-%fp
@ -55,7 +104,7 @@ ulPortSetIPL:
lsr.l #8,D0 /* IPL */
move.l 8(A6),D6 /* get argument */
andi.l #0x07,D6 /* least significant three bits */
andi.l #0x07,D6 /* least significant three bits */
lsl.l #8,D6 /* move over to make mask */
andi.l #0x0000F8FF,D7 /* zero out current IPL */
@ -70,7 +119,7 @@ ulPortSetIPL:
mcf5xxx_wr_cacr:
move.l 4(sp),d0
.long 0x4e7b0002 /* movec d0,cacr */
.long 0x4e7b0002 /* movec d0,cacr */
nop
rts

7
Source/portable/GCC/ColdFire_V2/portmacro.h
View file

@ -106,12 +106,11 @@ extern void vPortClearInterruptMaskFromISR( unsigned portBASE_TYPE );
/* Task utilities. */
#define portYIELD() MCF_INTC0_INTFRCH |= ( 1UL << ( configYIELD_INTERRUPT_VECTOR - 32UL ) ); portNOP(); portNOP(); portNOP() /* -32 as we are using the high word of the 64bit mask. */
#define portNOP() asm volatile ( "nop" )
/* Note this will overwrite all other bits in the force register, it is done this way for speed. */
#define portYIELD() MCF_INTC0_INTFRCH = ( 1UL << ( configYIELD_INTERRUPT_VECTOR - 32UL ) ); portNOP(); portNOP() /* -32 as we are using the high word of the 64bit mask. */
/*-----------------------------------------------------------*/
/* Task function macros as described on the FreeRTOS.org WEB site. */