first steps to make Makefile machine independent

BaS_gcc/Makefile

@@ -129,7 +129,7 @@ $(BASFLASH_EXEC): MAPFILE=basflash.map
 
 # the final link stage (BaS in RAM and BaS in flash)
 $(FLASH_EXEC) $(RAM_EXEC): $(LIBBAS) $(LDCSRC)
-	$(CPP) -P -DTARGET_ADDRESS=$(TARGET_ADDRESS) -DFORMAT=$(FORMAT) $(LDCSRC) -o $(LDCFILE)
+	$(CPP) $(INCLUDE) -P -DTARGET_ADDRESS=$(TARGET_ADDRESS) -DFORMAT=$(FORMAT) -DMACHINE_M5484LITE $(LDCSRC) -o $(LDCFILE)
 	$(LD) --oformat $(FORMAT) -Map $(MAPFILE) --cref -T $(LDCFILE) -o $@
 ifeq ($(COMPILE_ELF),Y)
 	$(OBJCOPY) -O srec $@ $@.s19

BaS_gcc/bas.lk.in

@@ -1,10 +1,19 @@
+#ifdef MACHINE_FIREBEE
+#include "firebee.h"
+#endif /* MACHINE_FIREBEE */
+
+#ifdef MACHINE_M5484LITE
+#include "m5484l.h"
+#endif /* MACHINE_M5484LITE */
+
+
 MEMORY
 {
    bas_rom (RX) : ORIGIN = TARGET_ADDRESS, LENGTH = 0x00100000
    /*
 	* target to copy BaS data segment to. 20k should be enough for now
 	*/
-   bas_ram (WX) : ORIGIN = 0x1FFFC000, LENGTH = 0x005000
+   bas_ram (WX) : ORIGIN = 0x1FFFB000, LENGTH = 0x005000
 }
 
 SECTIONS
@@ -13,6 +22,7 @@ SECTIONS
 	.text :
 	{
 		objs/startcf.o(.text) /* this one is the entry point so it must be the first */
+
 		objs/sysinit.o(.text)
 		objs/fault_vectors.o(.text)
 		objs/init_fpga.o(.text)
@@ -90,8 +100,8 @@ SECTIONS
 	 */
 
 	/* SDRAM Initialization @ 0000_0000 - 1FFF_FFFF 512Mbytes */
- 	___SDRAM                = 0x00000000;
+ 	___SDRAM                = SDRAM_START;
- 	___SDRAM_SIZE           = 0x20000000;
+ 	___SDRAM_SIZE           = SDRAM_SIZE;
 	_SDRAM_VECTOR_TABLE		= ___SDRAM;
 	
 	/* ST-RAM */

BaS_gcc/include/firebee.h

@@ -1,8 +1,37 @@
 #ifndef _FIREBEE_H_
 #define _FIREBEE_H_
 
+/*
+ * firebee.h
+ *
+ * preprocessor definitions for the Firebee machine. This file should contain nothing but preprocessor
+ * definition that evaluate to numbers. It is intended for use in C sources as well as in linker control
+ * files, so care must be taken to not break the syntax of either one.
+ * 
+ * This file is part of BaS_gcc.
+ *
+ * BaS_gcc 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * BaS_gcc 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 BaS_gcc.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Created on: 26.02.2013
+ *      Author: Markus Fröschle
+ */
+
 #define BOOTFLASH_BASE_ADDRESS	0xE0000000
 #define BOOTFLASH_SIZE			0x800000
 #define BOOTFLASH_BAM			(BOOTFLASH_SIZE - 1)
 
+#define SDRAM_START				0x00000000	/* start at address 0 */
+#define SDRAM_SIZE				0x20000000	/* 512 kb on the Firebee */
+
 #endif /* _FIREBEE_H_ */

BaS_gcc/include/m5484l.h

@@ -2,7 +2,10 @@
 #define _M5484L_H_
 
 #define BOOTFLASH_BASE_ADDRESS	0xE0000000
-#define BOOTFLASH_SIZE			0x400000				/* LITEKIT has 4Mb flash */
+#define BOOTFLASH_SIZE			0x400000				/* LITEKIT has 4MB flash */
 #define BOOTFLASH_BAM			(BOOTFLASH_SIZE - 1)
 
+#define SDRAM_START             0x00000000  /* start at address 0 */
+#define SDRAM_SIZE              0x4000000  	/* 64 MB on the LITEKIT */
+
 #endif /* _M5484L_H_ */