Add PPC440 port layer code.

2025-08-20 01:58:32 -04:00 · 2009-06-30 17:38:58 +00:00 · 2009-06-30 17:38:58 +00:00 · 09f991277e
commit 09f991277e
parent 0a9fddb5d4
4 changed files with 897 additions and 0 deletions
--- a/Source/portable/GCC/PPC440_Xilinx/portmacro.h
+++ b/Source/portable/GCC/PPC440_Xilinx/portmacro.h
@ -0,0 +1,138 @@
+/*
+	FreeRTOS.org V5.3.1 - Copyright (C) 2003-2009 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 (version 2) as published
+	by the Free Software Foundation and modified by the FreeRTOS exception.
+	**NOTE** The exception to the GPL is included to allow you to distribute a
+	combined work that includes FreeRTOS.org without being obliged to provide
+	the source code for any proprietary components.  Alternative commercial
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+	licensing section of http://www.FreeRTOS.org for full details.
+
+	FreeRTOS.org is distributed in the hope that it will be useful,	but WITHOUT
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+	FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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+
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+	with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
+	Temple Place, Suite 330, Boston, MA  02111-1307  USA.
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+
+	***************************************************************************
+	*                                                                         *
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+	*                                                                         *
+	* This is a concise, step by step, 'hands on' guide that describes both   *
+	* general multitasking concepts and FreeRTOS specifics. It presents and   *
+	* explains numerous examples that are written using the FreeRTOS API.     *
+	* Full source code for all the examples is provided in an accompanying    *
+	* .zip file.                                                              *
+	*                                                                         *
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+
+	1 tab == 4 spaces!
+
+	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.
+
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+*/
+
+#ifndef PORTMACRO_H
+#define PORTMACRO_H
+
+#include "xexception_l.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*-----------------------------------------------------------
+ * Port specific definitions.  
+ *
+ * The settings in this file configure FreeRTOS correctly for the
+ * given hardware and compiler.
+ *
+ * These settings should not be altered.
+ *-----------------------------------------------------------
+ */
+
+/* Type definitions. */
+#define portCHAR		char
+#define portFLOAT		float
+#define portDOUBLE		double
+#define portLONG		long
+#define portSHORT		short
+#define portSTACK_TYPE	unsigned portLONG
+#define portBASE_TYPE	portLONG
+
+#if( configUSE_16_BIT_TICKS == 1 )
+	typedef unsigned portSHORT portTickType;
+	#define portMAX_DELAY ( portTickType ) 0xffff
+#else
+	typedef unsigned portLONG portTickType;
+	#define portMAX_DELAY ( portTickType ) 0xffffffff
+#endif
+/*-----------------------------------------------------------*/	
+
+/* This port uses the critical nesting count from the TCB rather than
+maintaining a separate value and then saving this value in the task stack. */
+#define portCRITICAL_NESTING_IN_TCB		1
+
+/* Interrupt control macros. */
+#define portDISABLE_INTERRUPTS()		XExc_mDisableExceptions( XEXC_NON_CRITICAL );
+#define portENABLE_INTERRUPTS()			XExc_mEnableExceptions( XEXC_NON_CRITICAL );
+
+/*-----------------------------------------------------------*/
+
+/* Critical section macros. */
+void vTaskEnterCritical( void );
+void vTaskExitCritical( void );
+#define portENTER_CRITICAL()			vTaskEnterCritical()
+#define portEXIT_CRITICAL()				vTaskExitCritical()
+
+/*-----------------------------------------------------------*/
+
+/* Task utilities. */
+void vPortYield( void );
+#define portYIELD() asm volatile ( "SC \n\t NOP" )
+#define portYIELD_FROM_ISR() vTaskSwitchContext()
+
+/*-----------------------------------------------------------*/
+
+/* Hardware specifics. */
+#define portBYTE_ALIGNMENT			8
+#define portSTACK_GROWTH			( -1 )
+#define portTICK_RATE_MS			( ( portTickType ) 1000 / configTICK_RATE_HZ )		
+#define portNOP()					asm volatile ( "NOP" )
+
+/* There are 32 * 32bit floating point regieters, plus the FPSCR to save. */
+#define portNO_FLOP_REGISTERS_TO_SAVE  ( 32 + 1 )
+
+/*-----------------------------------------------------------*/
+
+/* Task function macros as described on the FreeRTOS.org WEB site. */
+#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
+#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
+
+/* Port specific interrupt handling functions. */
+void vPortSetupInterruptController( void );
+portBASE_TYPE xPortInstallInterruptHandler( unsigned portCHAR ucInterruptID, XInterruptHandler pxHandler, void *pvCallBackRef );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PORTMACRO_H */
+