Prepare for 0.3.0 release
* Add support for Purple Board (MIPS64 5Kc)
* Add support for MIPS64 5Kc CPUs
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;
+ }
+}