* Add support for MIPS32 4Kc CPUs

* Add support for INCA-IP Board

6 files changed, 1088 insertions, 0 deletions

diff --git a/board/incaip/Makefile b/board/incaip/Makefile
new file mode 100644
index 0000000..ad59bf0
--- /dev/null
+++ b/board/incaip/Makefile
@@ -0,0 +1,41 @@
+#
+# (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 $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	= $(BOARD).o flash.o
+SOBJS	= memsetup.o
+
+$(LIB):	.depend $(OBJS) $(SOBJS)
+	$(AR) crv $@ $^
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/incaip/config.mk b/board/incaip/config.mk
new file mode 100644
index 0000000..0cecc01
--- /dev/null
+++ b/board/incaip/config.mk
@@ -0,0 +1,32 @@
+#
+# (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
+#
+
+#
+# INCA-IP board with MIPS 4Kc CPU core
+#
+
+# ROM version
+TEXT_BASE = 0xB0000000
+
+# RAM version
+#TEXT_BASE = 0x80100000
diff --git a/board/incaip/flash.c b/board/incaip/flash.c
new file mode 100644
index 0000000..427f14a
--- /dev/null
+++ b/board/incaip/flash.c
@@ -0,0 +1,671 @@
+/*
+ * (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 <asm/inca-ip.h>
+
+flash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
+
+/* NOTE - CONFIG_FLASH_16BIT means the CPU interface is 16-bit, it
+ *        has nothing to do with the flash chip being 8-bit or 16-bit.
+ */
+#ifdef CONFIG_FLASH_16BIT
+typedef unsigned short FLASH_PORT_WIDTH;
+typedef volatile unsigned short FLASH_PORT_WIDTHV;
+#define	FLASH_ID_MASK	0xFFFF
+#else
+typedef unsigned long FLASH_PORT_WIDTH;
+typedef volatile unsigned long FLASH_PORT_WIDTHV;
+#define	FLASH_ID_MASK	0xFFFFFFFF
+#endif
+
+#define FPW	FLASH_PORT_WIDTH
+#define FPWV	FLASH_PORT_WIDTHV
+
+#define ORMASK(size) ((-size) & OR_AM_MSK)
+
+#if 0
+#define FLASH_CYCLE1	0x0555
+#define FLASH_CYCLE2	0x02aa
+#else
+#define FLASH_CYCLE1	0x0554
+#define FLASH_CYCLE2	0x02ab
+#endif
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size(FPWV *addr, flash_info_t *info);
+static void flash_reset(flash_info_t *info);
+static int write_word_intel(flash_info_t *info, FPWV *dest, FPW data);
+static int write_word_amd(flash_info_t *info, FPWV *dest, FPW data);
+static void flash_get_offsets(ulong base, flash_info_t *info);
+static flash_info_t *flash_get_info(ulong base);
+
+/*-----------------------------------------------------------------------
+ * flash_init()
+ *
+ * sets up flash_info and returns size of FLASH (bytes)
+ */
+unsigned long flash_init (void)
+{
+	unsigned long size = 0;
+	int i;
+
+	/* Init: no FLASHes known */
+	for (i=0; i < CFG_MAX_FLASH_BANKS; ++i) {
+		ulong flashbase = (i == 0) ? PHYS_FLASH_1 : PHYS_FLASH_2;
+		ulong * buscon = (ulong *)
+			((i == 0) ? INCA_IP_EBU_EBU_BUSCON0 : INCA_IP_EBU_EBU_BUSCON2);
+
+		/* Disable write protection */
+		*buscon &= ~INCA_IP_EBU_EBU_BUSCON1_WRDIS;
+
+#if 1
+		memset(&flash_info[i], 0, sizeof(flash_info_t));
+#endif
+
+		flash_info[i].size = 
+			flash_get_size((FPW *)flashbase, &flash_info[i]);
+
+		if (flash_info[i].flash_id == FLASH_UNKNOWN) {
+			printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx\n",
+			i, flash_info[i].size);
+		}
+		
+		size += flash_info[i].size;
+	}
+
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+	/* monitor protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_MONITOR_BASE,
+		      CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+		      flash_get_info(CFG_MONITOR_BASE));
+#endif
+
+#ifdef	CFG_ENV_IS_IN_FLASH
+	/* ENV protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_ENV_ADDR,
+		      CFG_ENV_ADDR+CFG_ENV_SIZE-1,
+		      flash_get_info(CFG_ENV_ADDR));
+#endif
+
+
+	return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_reset(flash_info_t *info)
+{
+	FPWV *base = (FPWV *)(info->start[0]);
+
+	/* Put FLASH back in read mode */
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
+		*base = (FPW)0x00FF00FF;	/* Intel Read Mode */
+	else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
+		*base = (FPW)0x00F000F0;	/* AMD Read Mode */
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t *info)
+{
+	int i;
+
+	/* set up sector start address table */
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL
+	    && (info->flash_id & FLASH_BTYPE)) {
+		int bootsect_size;	/* number of bytes/boot sector	*/
+		int sect_size;		/* number of bytes/regular sector */
+
+		bootsect_size = 0x00002000 * (sizeof(FPW)/2);
+		sect_size =     0x00010000 * (sizeof(FPW)/2);
+
+		/* set sector offsets for bottom boot block type	*/
+		for (i = 0; i < 8; ++i) {
+			info->start[i] = base + (i * bootsect_size);
+		}
+		for (i = 8; i < info->sector_count; i++) {
+			info->start[i] = base + ((i - 7) * sect_size);
+		}
+	}
+	else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD
+		 && (info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U) {
+
+		int sect_size;		/* number of bytes/sector */
+
+		sect_size = 0x00010000 * (sizeof(FPW)/2);
+
+		/* set up sector start address table (uniform sector type) */
+		for( i = 0; i < info->sector_count; i++ )
+			info->start[i] = base + (i * sect_size);
+	}
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+static flash_info_t *flash_get_info(ulong base)
+{
+	int i;
+	flash_info_t * info;
+	
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) {
+		info = & flash_info[i];
+		if (info->start[0] <= base && base < info->start[0] + info->size)
+			break;
+	}
+	
+	return i == CFG_MAX_FLASH_BANKS ? 0 : info;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+void flash_print_info (flash_info_t *info)
+{
+	int i;
+	uchar *boottype;
+	uchar *bootletter;
+	uchar *fmt;
+	uchar botbootletter[] = "B";
+	uchar topbootletter[] = "T";
+	uchar botboottype[] = "bottom boot sector";
+	uchar topboottype[] = "top boot sector";
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_AMD:	printf ("AMD ");		break;
+	case FLASH_MAN_BM:	printf ("BRIGHT MICRO ");	break;
+	case FLASH_MAN_FUJ:	printf ("FUJITSU ");		break;
+	case FLASH_MAN_SST:	printf ("SST ");		break;
+	case FLASH_MAN_STM:	printf ("STM ");		break;
+	case FLASH_MAN_INTEL:	printf ("INTEL ");		break;
+	default:		printf ("Unknown Vendor ");	break;
+	}
+
+	/* check for top or bottom boot, if it applies */
+	if (info->flash_id & FLASH_BTYPE) {
+		boottype = botboottype;
+		bootletter = botbootletter;
+	}
+	else {
+		boottype = topboottype;
+		bootletter = topbootletter;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM640U:
+		fmt = "29LV641D (64 Mbit, uniform sectors)\n";
+		break;
+        case FLASH_28F800C3B:
+        case FLASH_28F800C3T:
+		fmt = "28F800C3%s (8 Mbit, %s)\n";
+		break;
+	case FLASH_INTEL800B:
+	case FLASH_INTEL800T:
+		fmt = "28F800B3%s (8 Mbit, %s)\n";
+		break;
+        case FLASH_28F160C3B:
+        case FLASH_28F160C3T:
+		fmt = "28F160C3%s (16 Mbit, %s)\n";
+		break;
+	case FLASH_INTEL160B:
+	case FLASH_INTEL160T:
+		fmt = "28F160B3%s (16 Mbit, %s)\n";
+		break;
+        case FLASH_28F320C3B:
+        case FLASH_28F320C3T:
+		fmt = "28F320C3%s (32 Mbit, %s)\n";
+		break;
+	case FLASH_INTEL320B:
+	case FLASH_INTEL320T:
+		fmt = "28F320B3%s (32 Mbit, %s)\n";
+		break;
+        case FLASH_28F640C3B:
+        case FLASH_28F640C3T:
+		fmt = "28F640C3%s (64 Mbit, %s)\n";
+		break;
+	case FLASH_INTEL640B:
+	case FLASH_INTEL640T:
+		fmt = "28F640B3%s (64 Mbit, %s)\n";
+		break;
+	default:
+		fmt = "Unknown Chip Type\n";
+		break;
+	}
+
+	printf (fmt, bootletter, boottype);
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+		info->size >> 20,
+		info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+
+	for (i=0; i<info->sector_count; ++i) {
+		if ((i % 5) == 0) {
+			printf ("\n   ");
+		}
+
+		printf (" %08lX%s", info->start[i],
+			info->protect[i] ? " (RO)" : "     ");
+	}
+
+	printf ("\n");
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+
+ulong flash_get_size (FPWV *addr, flash_info_t *info)
+{
+	/* Write auto select command: read Manufacturer ID */
+
+	/* Write auto select command sequence and test FLASH answer */
+	addr[FLASH_CYCLE1] = (FPW)0x00AA00AA;	/* for AMD, Intel ignores this */
+	addr[FLASH_CYCLE2] = (FPW)0x00550055;	/* for AMD, Intel ignores this */
+	addr[FLASH_CYCLE1] = (FPW)0x00900090;	/* selects Intel or AMD */
+
+	/* The manufacturer codes are only 1 byte, so just use 1 byte.
+	 * This works for any bus width and any FLASH device width.
+	 */
+	switch (addr[1] & 0xff) {
+
+	case (uchar)AMD_MANUFACT:
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+
+	case (uchar)INTEL_MANUFACT:
+		info->flash_id = FLASH_MAN_INTEL;
+		break;
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		break;
+	}
+
+	/* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
+	if (info->flash_id != FLASH_UNKNOWN) switch (addr[0]) {
+
+	case (FPW)AMD_ID_LV640U:	/* 29LV640 and 29LV641 have same ID */
+		info->flash_id += FLASH_AM640U;
+		info->sector_count = 128;
+		info->size = 0x00800000 * (sizeof(FPW)/2);
+		break;				/* => 8 or 16 MB	*/
+
+	case (FPW)INTEL_ID_28F800C3B:
+		info->flash_id += FLASH_28F800C3B;
+		info->sector_count = 23;
+		info->size = 0x00100000 * (sizeof(FPW)/2);
+		break;				/* => 1 or 2 MB		*/
+
+	case (FPW)INTEL_ID_28F800B3B:
+		info->flash_id += FLASH_INTEL800B;
+		info->sector_count = 23;
+		info->size = 0x00100000 * (sizeof(FPW)/2);
+		break;				/* => 1 or 2 MB		*/
+
+	case (FPW)INTEL_ID_28F160C3B:
+		info->flash_id += FLASH_28F160C3B;
+		info->sector_count = 39;
+		info->size = 0x00200000 * (sizeof(FPW)/2);
+		break;				/* => 2 or 4 MB		*/
+
+	case (FPW)INTEL_ID_28F160B3B:
+		info->flash_id += FLASH_INTEL160B;
+		info->sector_count = 39;
+		info->size = 0x00200000 * (sizeof(FPW)/2);
+		break;				/* => 2 or 4 MB		*/
+
+	case (FPW)INTEL_ID_28F320C3B:
+		info->flash_id += FLASH_28F320C3B;
+		info->sector_count = 71;
+		info->size = 0x00400000 * (sizeof(FPW)/2);
+		break;				/* => 4 or 8 MB		*/
+
+	case (FPW)INTEL_ID_28F320B3B:
+		info->flash_id += FLASH_INTEL320B;
+		info->sector_count = 71;
+		info->size = 0x00400000 * (sizeof(FPW)/2);
+		break;				/* => 4 or 8 MB		*/
+
+	case (FPW)INTEL_ID_28F640C3B:
+		info->flash_id += FLASH_28F640C3B;
+		info->sector_count = 135;
+		info->size = 0x00800000 * (sizeof(FPW)/2);
+		break;				/* => 8 or 16 MB	*/
+
+	case (FPW)INTEL_ID_28F640B3B:
+		info->flash_id += FLASH_INTEL640B;
+		info->sector_count = 135;
+		info->size = 0x00800000 * (sizeof(FPW)/2);
+		break;				/* => 8 or 16 MB	*/
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		return (0);			/* => no or unknown flash */
+	}
+
+	flash_get_offsets((ulong)addr, info);
+
+	/* Put FLASH back in read mode */
+	flash_reset(info);
+
+	return (info->size);
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int	flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+	FPWV *addr;
+	int flag, prot, sect;
+	int intel = (info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL;
+	ulong start, now, last;
+	int rcode = 0;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		if (info->flash_id == FLASH_UNKNOWN) {
+			printf ("- missing\n");
+		} else {
+			printf ("- no sectors to erase\n");
+		}
+		return 1;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_INTEL800B:
+	case FLASH_INTEL160B:
+	case FLASH_INTEL320B:
+	case FLASH_INTEL640B:
+	case FLASH_28F800C3B:
+	case FLASH_28F160C3B:
+	case FLASH_28F320C3B:
+	case FLASH_28F640C3B:
+	case FLASH_AM640U:
+		break;
+	case FLASH_UNKNOWN:
+	default:
+		printf ("Can't erase unknown flash type %08lx - aborted\n",
+			info->flash_id);
+		return 1;
+	}
+
+	prot = 0;
+	for (sect=s_first; sect<=s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+
+	if (prot) {
+		printf ("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf ("\n");
+	}
+
+	last  = get_timer(0);
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect<=s_last && rcode == 0; sect++) {
+
+		if (info->protect[sect] != 0)	/* protected, skip it */
+			continue;
+
+		/* Disable interrupts which might cause a timeout here */
+		flag = disable_interrupts();
+
+		addr = (FPWV *)(info->start[sect]);
+		if (intel) {
+			*addr = (FPW)0x00500050; /* clear status register */
+			*addr = (FPW)0x00200020; /* erase setup */
+			*addr = (FPW)0x00D000D0; /* erase confirm */
+		}
+		else {
+			/* must be AMD style if not Intel */
+			FPWV *base;		/* first address in bank */
+
+			base = (FPWV *)(info->start[0]);
+			base[FLASH_CYCLE1] = (FPW)0x00AA00AA;	/* unlock */
+			base[FLASH_CYCLE2] = (FPW)0x00550055;	/* unlock */
+			base[FLASH_CYCLE1] = (FPW)0x00800080;	/* erase mode */
+			base[FLASH_CYCLE1] = (FPW)0x00AA00AA;	/* unlock */
+			base[FLASH_CYCLE2] = (FPW)0x00550055;	/* unlock */
+			*addr = (FPW)0x00300030;	/* erase sector */
+		}
+
+		/* re-enable interrupts if necessary */
+		if (flag)
+			enable_interrupts();
+
+		start = get_timer(0);
+
+		/* wait at least 50us for AMD, 80us for Intel.
+		 * Let's wait 1 ms.
+		 */
+		udelay (1000);
+
+		while ((*addr & (FPW)0x00800080) != (FPW)0x00800080) {
+			if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+				printf ("Timeout\n");
+
+				if (intel) {
+					/* suspend erase	*/
+					*addr = (FPW)0x00B000B0;
+				}
+
+				flash_reset(info);	/* reset to read mode */
+				rcode = 1;		/* failed */
+				break;
+			}
+
+			/* show that we're waiting */
+			if ((get_timer(last)) > CFG_HZ) {/* every second */
+				putc ('.');
+				last = get_timer(0);
+			}
+		}
+
+		/* show that we're waiting */
+		if ((get_timer(last)) > CFG_HZ) {	/* every second */
+			putc ('.');
+			last = get_timer(0);
+		}
+
+		flash_reset(info);	/* reset to read mode	*/
+	}
+
+	printf (" done\n");
+	return rcode;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+    FPW data = 0; /* 16 or 32 bit word, matches flash bus width on MPC8XX */
+    int bytes;	  /* number of bytes to program in current word		*/
+    int left;	  /* number of bytes left to program			*/
+    int i, res;
+
+    for (left = cnt, res = 0;
+	 left > 0 && res == 0;
+	 addr += sizeof(data), left -= sizeof(data) - bytes) {
+
+        bytes = addr & (sizeof(data) - 1);
+        addr &= ~(sizeof(data) - 1);
+
+	/* combine source and destination data so can program
+	 * an entire word of 16 or 32 bits
+	 */
+        for (i = 0; i < sizeof(data); i++) {
+            data <<= 8;
+            if (i < bytes || i - bytes >= left )
+		data += *((uchar *)addr + i);
+	    else
+		data += *src++;
+	}
+
+	/* write one word to the flash */
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_AMD:
+		res = write_word_amd(info, (FPWV *)addr, data);
+		break;
+	case FLASH_MAN_INTEL:
+		res = write_word_intel(info, (FPWV *)addr, data);
+		break;
+	default:
+		/* unknown flash type, error! */
+		printf ("missing or unknown FLASH type\n");
+		res = 1;	/* not really a timeout, but gives error */
+		break;
+	}
+    }
+
+    return (res);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash for AMD FLASH
+ * A word is 16 or 32 bits, whichever the bus width of the flash bank
+ * (not an individual chip) is.
+ *
+ * returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word_amd (flash_info_t *info, FPWV *dest, FPW data)
+{
+    ulong start;
+    int flag;
+    int res = 0;	/* result, assume success	*/
+    FPWV *base;		/* first address in flash bank	*/
+
+    /* Check if Flash is (sufficiently) erased */
+    if ((*dest & data) != data) {
+	return (2);
+    }
+
+
+    base = (FPWV *)(info->start[0]);
+
+    /* Disable interrupts which might cause a timeout here */
+    flag = disable_interrupts();
+
+    base[FLASH_CYCLE1] = (FPW)0x00AA00AA;	/* unlock */
+    base[FLASH_CYCLE2] = (FPW)0x00550055;	/* unlock */
+    base[FLASH_CYCLE1] = (FPW)0x00A000A0;	/* selects program mode */
+
+    *dest = data;		/* start programming the data	*/
+
+    /* re-enable interrupts if necessary */
+    if (flag)
+	enable_interrupts();
+
+    start = get_timer (0);
+
+    /* data polling for D7 */
+    while (res == 0 && (*dest & (FPW)0x00800080) != (data & (FPW)0x00800080)) {
+	if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+	    *dest = (FPW)0x00F000F0;	/* reset bank */
+	    res = 1;
+	}
+    }
+
+    return (res);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash for Intel FLASH
+ * A word is 16 or 32 bits, whichever the bus width of the flash bank
+ * (not an individual chip) is.
+ *
+ * returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word_intel (flash_info_t *info, FPWV *dest, FPW data)
+{
+    ulong start;
+    int flag;
+    int res = 0;	/* result, assume success	*/
+
+    /* Check if Flash is (sufficiently) erased */
+    if ((*dest & data) != data) {
+	return (2);
+    }
+
+    /* Disable interrupts which might cause a timeout here */
+    flag = disable_interrupts();
+
+    *dest = (FPW)0x00500050;	/* clear status register	*/
+    *dest = (FPW)0x00FF00FF;	/* make sure in read mode	*/
+    *dest = (FPW)0x00400040;	/* program setup		*/
+
+    *dest = data;		/* start programming the data	*/
+
+    /* re-enable interrupts if necessary */
+    if (flag)
+	enable_interrupts();
+
+    start = get_timer (0);
+
+    while (res == 0 && (*dest & (FPW)0x00800080) != (FPW)0x00800080) {
+	if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+	    *dest = (FPW)0x00B000B0;	/* Suspend program	*/
+	    res = 1;
+	}
+    }
+
+    if (res == 0 && (*dest & (FPW)0x00100010))
+	res = 1;	/* write failed, time out error is close enough	*/
+
+    *dest = (FPW)0x00500050;	/* clear status register	*/
+    *dest = (FPW)0x00FF00FF;	/* make sure in read mode	*/
+
+    return (res);
+}
diff --git a/board/incaip/incaip.c b/board/incaip/incaip.c
new file mode 100644
index 0000000..72f1c21
--- /dev/null
+++ b/board/incaip/incaip.c
@@ -0,0 +1,129 @@
+/*
+ * (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/addrspace.h>
+#include <asm/inca-ip.h>
+
+
+static ulong max_sdram_size(void)
+{
+	/* The only supported SDRAM data width is 16bit.
+	 */
+#define CFG_DW	2
+
+	/* The only supported number of SDRAM banks is 4.
+	 */
+#define CFG_NB	4
+
+	ulong cfgpb0 = *INCA_IP_SDRAM_MC_CFGPB0;
+	int   cols   = cfgpb0 & 0xF;
+	int   rows   = (cfgpb0 & 0xF0) >> 4;
+	ulong size   = (1 << (rows + cols)) * CFG_DW * CFG_NB;
+
+	return size;
+}
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+
+static long int dram_size(long int *base, long int maxsize)
+{
+	volatile long int *addr;
+	ulong cnt, val;
+	ulong save[32];			/* to make test non-destructive */
+	unsigned char i = 0;
+
+	for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) {
+		addr = base + cnt;		/* pointer arith! */
+
+		save[i++] = *addr;
+		*addr = ~cnt;
+	}
+
+	/* write 0 to base address */
+	addr = base;
+	save[i] = *addr;
+	*addr = 0;
+
+	/* check at base address */
+	if ((val = *addr) != 0) {
+		*addr = save[i];
+		return (0);
+	}
+
+	for (cnt = 1; cnt < maxsize / sizeof (long); cnt <<= 1) {
+		addr = base + cnt;		/* pointer arith! */
+
+		val = *addr;
+		*addr = save[--i];
+
+		if (val != (~cnt)) {
+			return (cnt * sizeof (long));
+		}
+	}
+	return (maxsize);
+}
+
+long int initdram(int board_type)
+{
+	int   rows, cols, best_val = *INCA_IP_SDRAM_MC_CFGPB0;
+	ulong size, max_size       = 0;
+	ulong our_address;
+
+	asm volatile ("move %0, $25" : "=r" (our_address) :);
+
+		/* Can't probe for RAM size unless we are running from Flash.
+		 */
+	if (PHYSADDR(our_address) < PHYSADDR(PHYS_FLASH_1))
+	{
+		return max_sdram_size();
+	}
+
+	for (cols = 0x8; cols <= 0xC; cols++)
+	{
+		for (rows = 0xB; rows <= 0xD; rows++)
+		{
+			*INCA_IP_SDRAM_MC_CFGPB0 = (0x14 << 8) |
+			                           (rows << 4) | cols;
+			size = dram_size((ulong *)CFG_SDRAM_BASE,
+			                                     max_sdram_size());
+
+			if (size > max_size)
+			{
+				best_val = *INCA_IP_SDRAM_MC_CFGPB0;
+				max_size = size;
+			}
+		}
+	}
+
+	*INCA_IP_SDRAM_MC_CFGPB0 = best_val;
+	return max_size;
+}
+
diff --git a/board/incaip/memsetup.S b/board/incaip/memsetup.S
new file mode 100644
index 0000000..4faf627
--- /dev/null
+++ b/board/incaip/memsetup.S
@@ -0,0 +1,151 @@
+/*
+ *  Memory sub-system initialization code for INCA-IP development board.
+ *
+ *  Copyright (c) 2003	Wolfgang Denk <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 <config.h>
+#include <version.h>
+#include <asm/regdef.h>
+
+
+#define EBU_MODUL_BASE          0xB8000200
+#define EBU_CLC(value)          0x0000(value)
+#define EBU_CON(value)          0x0010(value)
+#define EBU_ADDSEL0(value)      0x0020(value)
+#define EBU_ADDSEL1(value)      0x0024(value)
+#define EBU_ADDSEL2(value)      0x0028(value)
+#define EBU_BUSCON0(value)      0x0060(value)
+#define EBU_BUSCON1(value)      0x0064(value)
+#define EBU_BUSCON2(value)      0x0068(value)
+
+#define MC_MODUL_BASE           0xBF800000
+#define MC_ERRCAUSE(value)      0x0100(value)
+#define MC_ERRADDR(value)       0x0108(value)
+#define MC_IOGP(value)          0x0800(value)
+#define MC_SELFRFSH(value)      0x0A00(value)
+#define MC_CTRLENA(value)       0x1000(value)
+#define MC_MRSCODE(value)       0x1008(value)
+#define MC_CFGDW(value)         0x1010(value)
+#define MC_CFGPB0(value)        0x1018(value)
+#define MC_LATENCY(value)       0x1038(value)
+#define MC_TREFRESH(value)      0x1040(value)
+
+#if CPU_CLOCK_RATE==150000000   /* 150 MHz clock for the MIPS core */
+#define CGU_MODUL_BASE          0xBF107000
+#define CGU_PLL1CR(value)       0x0008(value)
+#define CGU_DIVCR(value)        0x0010(value)
+#define CGU_MUXCR(value)        0x0014(value)
+#define CGU_PLL1SR(value)       0x000C(value)
+#endif
+
+	.globl	memsetup
+memsetup:
+
+	/* EBU Initialization for the Flash CS0 and CS2.
+	 */
+	li	t0, EBU_MODUL_BASE
+
+	li	t1, 0xA0000041
+	sw	t1, EBU_ADDSEL0(t0)
+
+#if CPU_CLOCK_RATE==150000000   /* 150 MHz clock for the MIPS core */
+	li	t1, 0xE841417E
+	sw	t1, EBU_BUSCON0(t0)   /* value set up by magic flash word */
+	sw	t1, EBU_BUSCON2(t0)
+#else /* 100 MHz */
+	lw	t1, EBU_BUSCON0(t0)   /* value set up by magic flash word */
+	sw	t1, EBU_BUSCON2(t0)
+#endif
+
+	li	t1, 0xA0800041
+	sw	t1, EBU_ADDSEL2(t0)
+
+	/* Need to initialize CS1 too, so as to to prevent overlapping with
+	 * Flash bank 1.
+	 */
+	li	t1, 0xBE0000F1
+ 	sw	t1, EBU_ADDSEL1(t0)
+
+#if CPU_CLOCK_RATE==150000000   /* 150 MHz clock for the MIPS core */
+	li	t1, 0x684143FD
+#else /* 100 MHz */
+	li	t1, 0x684142BD
+#endif
+ 	sw	t1, EBU_BUSCON1(t0)
+
+#if CPU_CLOCK_RATE==150000000   /* 150 MHz clock for the MIPS core */
+	li      t0, CGU_MODUL_BASE
+	li      t1, 0x80000017
+	sw      t1, CGU_DIVCR(t0)
+	li      t1, 0xC00B0001
+	sw      t1, CGU_PLL1CR(t0)
+	lui     t2, 0x8000
+b1:
+	lw      t1, CGU_PLL1SR(t0)
+	and     t1, t1, t2
+	beq     t1, zero, b1
+	li      t1, 0x80000001
+	sw      t1, CGU_MUXCR(t0)
+#endif
+
+	/* SDRAM Initialization.
+	 */
+	li	t0, MC_MODUL_BASE
+
+	/* Clear Error log registers */
+	sw	zero, MC_ERRCAUSE(t0)
+	sw	zero, MC_ERRADDR(t0)
+
+	/* Set clock ratio to 1:1 */
+	li	t1, 0x03		/* clkrat=1:1, rddel=3 */
+	sw	t1, MC_IOGP(t0)
+
+	/* Clear Power-down registers */
+	sw	zero, MC_SELFRFSH(t0)
+
+	/* Set CAS Latency */
+	li	t1, 0x00000020		/* CL = 2 */
+	sw	t1, MC_MRSCODE(t0)
+
+	/* Set word width to 16 bit */
+	li	t1, 0x2  
+	sw	t1, MC_CFGDW(t0)
+
+	/* Set CS0 to SDRAM parameters */
+	li	t1, 0x000014C9
+	sw	t1, MC_CFGPB0(t0)
+
+	/* Set SDRAM latency parameters */
+	li	t1, 0x00026325		/* BC PC100 */
+	sw	t1, MC_LATENCY(t0)
+
+	/* Set SDRAM refresh rate */
+	li	t1, 0x00000C30		/* 4K/64ms @ 100MHz */
+	sw	t1, MC_TREFRESH(t0)
+
+	/* Finally enable the controller */
+	li	t1, 1
+	sw	t1, MC_CTRLENA(t0)
+
+	j	ra
+	nop
+
diff --git a/board/incaip/u-boot.lds b/board/incaip/u-boot.lds
new file mode 100644
index 0000000..3c9ca89
--- /dev/null
+++ b/board/incaip/u-boot.lds
@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk 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
+ */
+
+/*
+OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-bigmips")
+*/
+OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradbigmips", "elf32-tradbigmips")
+OUTPUT_ARCH(mips)
+ENTRY(_start)
+SECTIONS
+{
+        . = 0x00000000;
+
+        . = ALIGN(4);
+	.text       :
+	{
+	  *(.text)
+	}
+
+        . = ALIGN(4);
+        .rodata  : { *(.rodata) }
+
+        . = ALIGN(4);
+        .data  : { *(.data) }
+
+	. = ALIGN(4);
+	.sdata  : { *(.sdata) }
+
+	_gp = ALIGN(16);
+
+	__got_start = .;
+	.got  : { *(.got) }
+	__got_end = .;
+
+	.sdata  : { *(.sdata) }
+
+	uboot_end_data = .;
+	num_got_entries = (__got_end - __got_start) >> 2;
+
+        . = ALIGN(4);
+	.sbss  : { *(.sbss) }
+        .bss  : { *(.bss) }
+	uboot_end = .;
+}