Patches by Yasushi Shoji, 29 Jun 2004:

- add empty include/asm-microblaze/processor.h
- add to CREDITS and MAINTAINERS
- add gd initialization
- add MicroBlaze and SUZAKU board to MAKEALL script
- add reset support for SUZAKU
- add flush_cache() for MicroBlaze
- add CFG_FLASH_SIZE to include/configs/suzaku.h since we have fixed
  size flash memory on SUZAKU

CHANGELOG

@@ -2,6 +2,16 @@
 Changes since U-Boot 1.1.1:
 ======================================================================
 
+* Patches by Yasushi Shoji, 29 Jun 2004:
+  - add empty include/asm-microblaze/processor.h
+  - add to CREDITS and MAINTAINERS
+  - add gd initialization
+  - add MicroBlaze and SUZAKU board to MAKEALL script
+  - add reset support for SUZAKU
+  - add flush_cache() for MicroBlaze
+  - add CFG_FLASH_SIZE to include/configs/suzaku.h since we have fixed
+    size flash memory on SUZAKU
+
 * Patch by Prakash Kumar, 27 Jun 2004:
   Add support for the PXA250 based Intrinsyc Cerf board.
 

CREDITS

@@ -348,6 +348,10 @@ N: Robert Schwebel
 E: r.schwebel@pengutronix.de
 D: Support for csb226, logodl and innokom boards (PXA2xx)
 
+N: Yasushi Shoji
+E: yashi@atmark-techno.com
+D: Support for Xilinx MicroBlaze, for Atmark Techno SUZAKU FPGA board
+
 N: Kurt Stremerch
 E: kurt@exys.be
 D: Support for Exys XSEngine board

MAINTAINERS

@@ -424,6 +424,17 @@ Scott McNutt <smcnutt@psyent.com>
 
 	DK1C20			Nios-32
 
+#########################################################################
+# MicroBlaze Systems:							#
+#									#
+# Maintainer Name, Email Address					#
+#	Board			CPU					#
+#########################################################################
+
+Yasushi Shoji <yashi@atmark-techno.com>
+
+	SUZAKU			MicroBlaze
+
 #########################################################################
 # End of MAINTAINERS list						#
 #########################################################################

MAKEALL

@@ -187,6 +187,12 @@ LIST_nios="	\
 	DK1S10 DK1S10_standard_32 DK1S10_mtx_ldk_20			\
 "
 
+#########################################################################
+## MicroBlaze Systems
+#########################################################################
+
+LIST_microblaze="suzaku"
+
 #-----------------------------------------------------------------------
 
 #----- for now, just run PPC by default -----
@@ -211,6 +217,7 @@ do
 	case "$arg" in
 	ppc|5xx|5xxx|8xx|824x|8260|85xx|4xx|7xx|74xx| \
 	arm|SA|ARM7|ARM9|pxa|ixp| \
+	microblaze| \
 	mips| \
 	nios| \
 	x86|I486)

README

@@ -242,7 +242,7 @@ The following options need to be configured:
 
 		MicroBlaze based CPUs:
 		----------------------
-		CONFIG_MICROBLZE
+		CONFIG_MICROBLAZE
 
 
 - Board Type:	Define exactly one of

board/AtmarkTechno/suzaku/suzaku.c

@@ -22,8 +22,11 @@
  * MA 02111-1307 USA
  */
 
-#include <common.h>
+/* This is a board specific file.  It's OK to include board specific
+ * header files */
+#include <asm/suzaku.h>
 
 void do_reset(void)
 {
+	*((unsigned long *)(MICROBLAZE_SYSREG_BASE_ADDR)) = MICROBLAZE_SYSREG_RECONFIGURE;
 }

drivers/serial_xuartlite.c

@@ -24,7 +24,7 @@
 
 #include <config.h>
 
-#ifdef	CONFIG_MICROBLZE
+#ifdef	CONFIG_MICROBLAZE
 
 #include <asm/serial_xuartlite.h>
 

examples/stubs.c

@@ -98,7 +98,7 @@ gd_t *global_data;
 "	move.l	(%%a0), %%a0\n"		\
 "	jmp	(%%a0)\n"			\
 	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "a0");
-#elif defined(CONFIG_MICROBLZE)
+#elif defined(CONFIG_MICROBLAZE)
 /*
  * r31 holds the pointer to the global_data. r5 is a call-clobbered.
  */

include/asm-microblaze/processor.h

@@ -0,0 +1 @@
+/* FIXME: Implement this! */

include/asm-microblaze/suzaku.h

@@ -22,4 +22,6 @@
  * MA 02111-1307 USA
  */
 
-/* EMPTY FILE */
+/* System Register (GPIO) */
+#define MICROBLAZE_SYSREG_BASE_ADDR 0xFFFFA000
+#define MICROBLAZE_SYSREG_RECONFIGURE (1 << 0)

include/configs/suzaku.h

@@ -36,7 +36,7 @@
  * (easy to change)
  */
 
-#define CONFIG_MICROBLZE	1	/* This is an MicroBlaze CPU	*/
+#define CONFIG_MICROBLAZE	1	/* This is an MicroBlaze CPU	*/
 #define CONFIG_SUZAKU		1	/* on an SUZAKU Board		*/
 
 /*-----------------------------------------------------------------------
@@ -47,6 +47,7 @@
 #define CFG_SDRAM_BASE		0x80000000
 #define CFG_SDRAM_SIZE		0x01000000
 #define CFG_FLASH_BASE		0xfff00000
+#define CFG_FLASH_SIZE		0x00400000
 #define CFG_RESET_ADDRESS	0xfff00100
 #define CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor */
 #define CFG_MONITOR_BASE        (CFG_SDRAM_BASE + CFG_SDRAM_SIZE - (1024 * 1024))
@@ -87,4 +88,14 @@
 #define	CFG_ENV_SIZE		0x10000	/* Total Size of Environment Sector	*/
 #define CFG_ENV_SECT_SIZE	0x10000	/* see README - env sector total size	*/
 
+/*-----------------------------------------------------------------------
+ * Definitions for initial stack pointer and data area (in DPRAM)
+ */
+
+#define CFG_INIT_RAM_ADDR	0x80000000	/* inside of SDRAM */
+#define CFG_INIT_RAM_END	0x2000		/* End of used area in RAM */
+#define CFG_GBL_DATA_SIZE	128		/* size in bytes reserved for initial data */
+#define CFG_GBL_DATA_OFFSET    (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
+#define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
+
 #endif	/* __CONFIG_H */

lib_microblaze/Makefile

@@ -27,7 +27,7 @@ LIB	= lib$(ARCH).a
 
 AOBJS	=
 
-COBJS	= board.o microblaze_linux.o time.o
+COBJS	= board.o microblaze_linux.o time.o cache.o
 
 OBJS	= $(AOBJS) $(COBJS)
 

lib_microblaze/board.c

@@ -72,8 +72,21 @@ init_fnc_t *init_sequence[] = {
 
 void board_init(void)
 {
+	DECLARE_GLOBAL_DATA_PTR;
+
+	bd_t *bd;
 	init_fnc_t **init_fnc_ptr;
 
+	/* Pointer is writable since we allocated a register for it. */
+	gd = (gd_t *)CFG_GBL_DATA_OFFSET;
+	memset((void *)gd, 0, CFG_GBL_DATA_SIZE);
+
+	gd->bd = (bd_t *)(gd+1);	/* At end of global data */
+	gd->baudrate = CONFIG_BAUDRATE;
+
+	bd = gd->bd;
+	bd->bi_baudrate = CONFIG_BAUDRATE;
+
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 		WATCHDOG_RESET ();
 		if ((*init_fnc_ptr) () != 0) {

lib_microblaze/cache.c

@@ -0,0 +1,31 @@
+/*
+ * (C) Copyright 2004 Atmark Techno, Inc.
+ *
+ * Yasushi SHOJI <yashi@atmark-techno.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+void flush_cache (ulong addr, ulong size)
+{
+	/* MicroBlaze have write thruough cache. nothing to do. */
+	return;
+}

microblaze_config.mk

@@ -22,6 +22,8 @@
 # MA 02111-1307 USA
 #
 
+PLATFORM_CPPFLAGS += -ffixed-r31
+
 ifdef CONFIG_MICROBLAZE_HARD_MULT
 PLATFORM_CPPFLAGS += -mno-xl-soft-mul
 endif