Prepare for 0.3.0 release

* Add support for Purple Board (MIPS64 5Kc)

* Add support for MIPS64 5Kc CPUs

1 files changed, 197 insertions, 0 deletions

diff --git a/board/purple/purple.c b/board/purple/purple.c
new file mode 100644
index 0000000..293cc56
--- /dev/null
+++ b/board/purple/purple.c
@@ -0,0 +1,197 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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>
+#include <command.h>
+#include <asm/inca-ip.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
+
+#include "sconsole.h"
+
+#define cache_unroll(base,op)	        	\
+	__asm__ __volatile__("	         	\
+		.set noreorder;		        \
+		.set mips3;		        \
+                cache %1, (%0);	                \
+		.set mips0;			\
+		.set reorder"			\
+		:				\
+		: "r" (base),			\
+		  "i" (op));
+
+typedef void (*FUNCPTR)(ulong *source, ulong *destination, ulong nlongs);
+
+extern void	asc_serial_init		(void);
+extern void	asc_serial_putc 	(char);
+extern void	asc_serial_puts 	(const char *);
+extern int	asc_serial_getc 	(void);
+extern int	asc_serial_tstc 	(void);
+extern void	asc_serial_setbrg 	(void);
+
+
+long int initdram(int board_type)
+{
+	/* The only supported number of SDRAM banks is 4.
+	 */
+#define CFG_NB	4
+
+	ulong	cfgpb0	= *INCA_IP_SDRAM_MC_CFGPB0;
+	ulong	cfgdw	= *INCA_IP_SDRAM_MC_CFGDW;
+	int	cols	= cfgpb0 & 0xF;
+	int	rows	= (cfgpb0 & 0xF0) >> 4;
+	int	dw	= cfgdw & 0xF;
+	ulong	size	= (1 << (rows + cols)) * (1 << (dw - 1)) * CFG_NB;
+
+	return size;
+}
+
+int checkboard (void)
+{
+
+	unsigned long chipid = *(unsigned long *)0xB800C800;
+
+	printf ("Board: Purple PLB 2800 chip version %ld, ", chipid & 0xF);
+
+	printf("CPU Speed %d MHz\n", CPU_CLOCK_RATE/1000000);
+
+	return 0;
+}
+
+int misc_init_r (void)
+{
+	asc_serial_init ();
+
+	sconsole_putc   = asc_serial_putc;
+	sconsole_puts   = asc_serial_puts;
+	sconsole_getc   = asc_serial_getc;
+	sconsole_tstc   = asc_serial_tstc;
+	sconsole_setbrg = asc_serial_setbrg;
+
+	sconsole_flush ();
+	return (0);
+}
+
+/*******************************************************************************
+*
+* copydwords - copy one buffer to another a long at a time
+*
+* This routine copies the first <nlongs> longs from <source> to <destination>.
+*/
+static void copydwords (ulong *source, ulong *destination, ulong nlongs)
+{
+	ulong temp,temp1;
+	ulong *dstend = destination + nlongs;
+
+	while (destination < dstend)
+	{
+		temp = *source++;
+		/* dummy read from sdram */
+		temp1 = *(ulong *)0xa0000000;
+		/* avoid optimization from compliler */
+		*(ulong *)0xbf0081f8 = temp1 + temp;
+		*destination++ = temp;
+
+	} 
+}
+
+/*******************************************************************************
+*
+* copyLongs - copy one buffer to another a long at a time
+*
+* This routine copies the first <nlongs> longs from <source> to <destination>.
+*/
+static void copyLongs (ulong *source, ulong *destination, ulong nlongs)
+{
+	FUNCPTR absEntry;
+
+	absEntry = (FUNCPTR)(0xbf008000+((ulong)copydwords & 0x7));
+	absEntry(source, destination, nlongs);
+}
+
+/*******************************************************************************
+*
+* programLoad - load program into ram
+*
+* This routine load copydwords into ram
+*
+*/
+static void programLoad(void)
+{
+	FUNCPTR absEntry;
+	ulong *src,*dst;
+
+	src = (ulong *)(TEXT_BASE + 0x428);
+	dst = (ulong *)0xbf0081d0;
+
+	absEntry = (FUNCPTR)(TEXT_BASE + 0x400);   
+	absEntry(src,dst,0x6);     	
+
+	src = (ulong *)((ulong)copydwords & 0xfffffff8);
+	dst = (ulong *)0xbf008000;
+
+	absEntry(src,dst,0x38);
+}
+
+/*******************************************************************************
+*
+* copy_code - copy u-boot image from flash to RAM
+*
+* This routine is needed to solve flash problems on this board
+*
+*/
+void copy_code (ulong dest_addr)
+{
+	unsigned long start;
+	unsigned long end;
+
+	/* load copydwords into ram
+	 */
+	programLoad();
+
+	/* copy u-boot code
+	 */
+	copyLongs((ulong *)CFG_MONITOR_BASE,
+		  (ulong *)dest_addr,
+		  (CFG_MONITOR_LEN + 3) / 4);
+
+
+	/* flush caches
+	 */
+
+	start = KSEG0;
+	end = start + CFG_DCACHE_SIZE;
+	while(start < end) {
+		cache_unroll(start,Index_Writeback_Inv_D);
+		start += CFG_CACHELINE_SIZE;
+	}
+
+	start = KSEG0;
+	end = start + CFG_ICACHE_SIZE;
+	while(start < end) {
+		cache_unroll(start,Index_Invalidate_I);
+		start += CFG_CACHELINE_SIZE;
+	}
+}