Prepare Fujitsu ports for release.

20080217/Demo/HCS12_GCC_banked/startup.c

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+/*
+	FreeRTOS.org V4.7.1 - 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.
+
+	***************************************************************************
+
+	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.
+
+	***************************************************************************
+*/
+
+
+/*
+ * startup.c
+ * Author Jefferson L Smith, Robotronics Inc.
+ *
+ * __premain() is the startup code to init hardware and ram to execute the
+ *             C application.
+ *
+ */
+
+#include <sys/ports.h>
+#include "cpu.h"
+
+void ATTR_NEAR __premain (void);
+
+void
+__premain (void)
+{
+	// in case special mode enabled, avoid conflict on PORTE
+	PEAR |= NECLK;
+	// bgnd mode stops COP and RTI clocks
+	COPCTL = RSBCK;
+	// stops TCNT counter when debugging stops
+	TSCR1 |= (1<<5);			// TFRZ
+	
+	// PLL
+	CLKSEL = 0;				// disable PLL to configure
+	// xtal 16MHz, bus 24MHz
+	SYNR  = 3 - 1;
+	REFDV = 2 - 1;
+	while (!(CRGFLG & 0x08))    // wait for PLL LOCK
+	cop_optional_reset();
+	CLKSEL |= 0x80;             // use PLL
+
+	// init switch inputs
+	PERH = 0xff;				// pullups
+
+	// outputs
+#if PORT_LED==M6811_PORTB		//PORTB
+	DDRB = 0xff;	// init LED
+#elif PORT_LED==M6811_PORTA		//PORTA
+	DDRA = 0xff;
+#elif PORT_LED==M6811_PTT	//PTT
+	DDRT = 0xff;
+#elif PORT_LED==M6811_PTM	//PTM
+	DDRM = 0xff;
+#elif PORT_LED==M6811_PTP	//PTP
+	DDRP = 0xff;
+#elif PORT_LED==M6811_PTH	//PTH
+	DDRH = 0xff;
+#endif
+	
+}
+