move ifxmips uboot to package/

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11601 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 892 insertions, 0 deletions

diff --git a/package/uboot-ifxmips/files/board/danube/flash.c b/package/uboot-ifxmips/files/board/danube/flash.c
new file mode 100644
index 0000000000..587c072d18
--- /dev/null
+++ b/package/uboot-ifxmips/files/board/danube/flash.c
@@ -0,0 +1,892 @@
+/*
+ * (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
+ */
+//joelin 10/07/2004 for MXIC MX29LV320ABTC-90
+#include <common.h>
+#include <asm/danube.h>
+
+/*
+#ifdef CONFIG_AMAZON
+	#define FLASH_DELAY 	{int i; \
+				for(i=0;i<800;i++) \
+					*((volatile u32 *)CFG_SDRAM_BASE_UNCACHE); \
+				}
+#else
+	#define FLASH_DELAY
+#endif
+*/	
+
+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)	// 0xffff8000
+
+#if 0
+#define FLASH_CYCLE1	0x0555
+#define FLASH_CYCLE2	0x02aa
+#else
+#define FLASH_CYCLE1	0x0554			//joelin for MX29LV320AT/B  0x0555 
+#define FLASH_CYCLE2	0x02ab			//joelin for MX29LV320AT/B  0x02aa 
+#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) {         // 1 bank 
+		ulong flashbase = (i == 0) ? PHYS_FLASH_1 : PHYS_FLASH_2;      // 0xb0000000,  0xb4000000
+
+       volatile ulong * buscon = (ulong *)
+			((i == 0) ? DANUBE_EBU_BUSCON0 : DANUBE_EBU_BUSCON1);
+
+		/* Disable write protection */
+//		*buscon &= ~AMAZON_EBU_BUSCON0_WRDIS;
+		/* Enable write protection */
+		*buscon |= DANUBE_EBU_BUSCON0_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    // TEXT_BASE >= 0xB3000000
+	/* monitor protection ON by default */  /* only use software protection, info->protect[i]=0/1 */
+/*	flash_protect(FLAG_PROTECT_SET,
+		      CFG_MONITOR_BASE,
+		      CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+		      flash_get_info(CFG_MONITOR_BASE));
+*/
+	flash_protect(FLAG_PROTECT_CLEAR,    // clear protect
+		      CFG_MONITOR_BASE,
+		      CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
+		      flash_get_info(CFG_MONITOR_BASE));
+
+#endif
+
+#ifdef	CFG_ENV_IS_IN_FLASH     /* 1 */
+	/* 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));
+*/
+	flash_protect(FLAG_PROTECT_CLEAR,
+		      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]);
+
+	(*DANUBE_EBU_BUSCON0)&=(~0x80000000);	// enable writing
+	(*DANUBE_EBU_BUSCON1)&=(~0x80000000);	// enable writing
+	(*EBU_NAND_CON)=0;	
+	/* Put FLASH back in read mode */
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
+		*base = (FPW)0x00FF00FF;	/* Intel Read Mode */
+		asm("SYNC");
+	}
+	else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD){
+		*base = (FPW)0x00F000F0;	/* AMD Read Mode */
+		asm("SYNC");			//joelin
+	}
+	else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX){
+		*base = (FPW)0x00F000F0;	/* MXIC Read Mode */
+		asm("SYNC");			//joelin
+	}		
+
+	(*DANUBE_EBU_BUSCON0)|=0x80000000;	// disable writing
+	(*DANUBE_EBU_BUSCON1)|=0x80000000;	// disable writing
+
+}
+
+/*-----------------------------------------------------------------------
+ */
+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);
+	}
+	else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
+		&& ((info->flash_id & FLASH_TYPEMASK)==FLASH_28F128J3A)){
+		int sect_size;
+		sect_size = 0x20000;
+		for(i=0;i < info->sector_count; i++)
+			info->start[i]= base + (i*sect_size);
+	}
+	else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
+		&& ((info->flash_id & FLASH_TYPEMASK)==FLASH_28F320J3A)){
+		int sect_size;
+		sect_size = 0x20000;
+		for(i=0;i < info->sector_count; i++)
+			info->start[i]= base + (i*sect_size);
+	}
+//joelin add for MX29LV320AB-- SA0~SA7:sector size=8K bytes ,SA9~SA70 :sector size=64k bytes	
+	else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX)
+		&& ((info->flash_id & FLASH_TYPEMASK)==FLASH_29LV320AB)){
+		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);
+		}
+	}	
+//joelin add for MX29LV160BB-- SA0=16K,SA1,SA2=8K,SA3=32K bytes ,SA4~SA34 :sector size=64k bytes			
+	else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX)
+		&& ((info->flash_id & FLASH_TYPEMASK)==FLASH_29LV160BB)){
+		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	*/		
+//MX29LV160BB
+		info->start[0] = base ;				//SA0=16K bytes
+		info->start[1] = info->start[0]  + (1 * 0x00004000 * (sizeof(FPW)/2)); //SA1=8K bytes
+		info->start[2] = info->start[1]  + (1 * 0x00002000 * (sizeof(FPW)/2)); //SA2=8K bytes
+		info->start[3] = info->start[2]  + (1 * 0x00002000 * (sizeof(FPW)/2)); //SA3=32K bytes
+
+		for (i = 4; i < info->sector_count; i++) {
+			info->start[i] = base + ((i - 3) * sect_size);
+		}		
+	}	
+//liupeng add for MX29LV640BB-- SA0~SA7:sector size=8k bytes ,SA8~SA134 :sector size=64k bytes	
+	else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX)
+		&& ((info->flash_id & FLASH_TYPEMASK)==FLASH_29LV640BB)){
+		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{
+		printf("flash get offsets fail\n");
+	}
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+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;
+	case FLASH_MAN_MX:	printf ("MXIC  ");		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;
+	case FLASH_28F128J3A:
+		fmt = "28F128J3A (128 Mbit, 128 uniform sectors)\n";
+		break;
+	case FLASH_28F320J3A:
+		fmt = "28F320J3A (32 Mbit, 32 uniform sectors)\n";
+		break;
+	case FLASH_29LV640BB:		//liupeng for MXIC FLASH_29LV640BB
+		fmt = "29LV640BB (64 Mbit, boot sector SA0~SA126 size 64k bytes,other sectors SA127~SA135 size 8k bytes)\n";
+		break;	
+	case FLASH_29LV320AB:		//joelin for MXIC FLASH_29LV320AB
+		fmt = "29LV320AB (32 Mbit, boot sector SA0~SA7 size 8K bytes,other sectors SA8~SA70 size 64K bytes)\n";
+		break;	
+	case FLASH_29LV160BB:		//joelin for MXIC FLASH_29LV160BB
+		fmt = "29LV160BB (16 Mbit, boot sector SA0 size 16K bytes,SA1,SA2 size 8K bytes,SA3 size 32k bytes,other sectors SA4~SA34 size 64K bytes)\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)
+{
+        (*DANUBE_EBU_BUSCON0)=0x1d7ff;  //value from Aikann, should be used on the real chip
+	(*EBU_ADDR_SEL_0) = 0x10000031; //starting address from 0xb0000000
+	(*EBU_NAND_CON)=0;
+	(*DANUBE_EBU_BUSCON0)&=(~0x80000000);	// enable writing
+	(*DANUBE_EBU_BUSCON1)&=(~0x80000000);	// enable writing
+	/* 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 */
+  	asm("SYNC");	
+  	addr[FLASH_CYCLE2] = (FPW)0x00550055;	/* for AMD, Intel ignores this */
+  	asm("SYNC");
+  	addr[FLASH_CYCLE1] = (FPW)0x00900090;	/* selects Intel or AMD */
+  	asm("SYNC");
+	
+	/* The manufacturer codes are only 1 byte, so just use 1 byte.
+	 * This works for any bus width and any FLASH device width.
+	 */
+ 
+//	printf("\n type is %08lx", addr[1] & 0xff); 	//joelin 10/06/2004 flash type
+//	printf("\n type is %08lx", addr[0] & 0xff); 	//joelin 10/06/2004 flash type
+//		asm("SYNC");	 
+	switch (addr[1] & 0xff) {
+	case (uchar)AMD_MANUFACT:
+		info->flash_id = FLASH_MAN_AMD;
+		break;
+
+	case (uchar)INTEL_MANUFACT:			// 0x0089
+		info->flash_id = FLASH_MAN_INTEL; //0x00300000
+		break;
+		
+//joelin for MXIC		
+	case (uchar)MX_MANUFACT:		// 0x00c2
+		info->flash_id = FLASH_MAN_MX ;//0x00030000
+		break;
+		
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		break;
+/*	default:
+		info->flash_id = FLASH_MAN_INTEL; //0x00300000
+		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	*/
+	
+	case (FPW)INTEL_ID_28F128J3A:
+		info->flash_id +=FLASH_28F128J3A;
+		info->sector_count = 128;
+		info->size = 0x01000000 * (sizeof(FPW)/2);
+		break;				/* => 16 MB */
+	case (FPW)INTEL_ID_28F320J3A:
+		info->flash_id += FLASH_28F320J3A;
+		info->sector_count = 32;
+		info->size = 0x00400000 * (sizeof(FPW)/2);
+		break;	
+//joelin for MXIC
+	case (FPW)MX_ID_29LV320AB:
+		info->flash_id += FLASH_29LV320AB;
+		info->sector_count = 71;
+		info->size = 0x00400000 * (sizeof(FPW)/2);
+		break;				/* => 4 MB		*/		
+					/* => 4 MB */
+//joelin for MXIC
+	case (FPW)MX_ID_29LV160BB:
+		info->flash_id += FLASH_29LV160BB;
+		info->sector_count = 35;
+		info->size = 0x00200000 * (sizeof(FPW)/2);
+		break;				/* => 2 MB		*/		
+					/* => 2 MB */					
+	/* liupeng*/
+	case (FPW)MX_ID_29LV640BB:
+		info->flash_id += FLASH_29LV640BB;
+		info->sector_count = 135;
+		info->size = 0x00800000 * (sizeof(FPW)/2);
+		break;				/* => 2 MB		*/		
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		return (0);			/* => no or unknown flash */
+/*	default:
+		info->flash_id += FLASH_28F320J3A;
+		info->sector_count = 32;
+		info->size = 0x00400000 * (sizeof(FPW)/2);
+		break;*/
+	}
+
+
+	(*DANUBE_EBU_BUSCON0)|=0x80000000;	// disable writing
+	(*DANUBE_EBU_BUSCON1)|=0x80000000;	// disable writing
+	
+	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_28F128J3A:
+	case FLASH_28F320J3A:
+	case FLASH_AM640U:
+	case FLASH_29LV640BB:	//liupeng for MXIC MX29LV640BB
+	case FLASH_29LV320AB:	//joelin for MXIC MX29LV320AB
+	case FLASH_29LV160BB:	//joelin for MXIC MX29LV160BB
+		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();
+		
+		(*DANUBE_EBU_BUSCON0)&=(~0x80000000);	// enable writing
+		(*DANUBE_EBU_BUSCON1)&=(~0x80000000);	// enable writing
+		(*EBU_NAND_CON)=0;
+		addr = (FPWV *)(info->start[sect]);
+		if (intel) {
+			*addr = (FPW)0x00500050; /* clear status register */
+			*addr = (FPW)0x00200020; /* erase setup */
+			*addr = (FPW)0x00D000D0; /* erase confirm */
+			asm("SYNC");
+		}
+		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 ("Erase 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);
+			}
+		}
+		
+			
+//joelin for MXIC 
+	switch (info->flash_id & FLASH_VENDMASK) {
+ 	case FLASH_MAN_MX:		//joelin for MXIC	
+ 		break;
+ 	default:
+		if((*addr & (FPW)0x00200020) != (FPW)0x0)
+			printf("Erase Error\n");
+		break;
+	}			
+			
+			
+
+		/* 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	*/
+	}
+
+	(*DANUBE_EBU_BUSCON0)|=0x80000000;	// disable writing
+	(*DANUBE_EBU_BUSCON1)|=0x80000000;	// disable writing
+ 
+	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:
+	case FLASH_MAN_MX:		//joelin for MXIC	
+		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();
+  
+    (*DANUBE_EBU_BUSCON0)&=(~0x80000000);	// enable writing
+    (*DANUBE_EBU_BUSCON1)&=(~0x80000000);	// enable writing
+    (*EBU_NAND_CON)=0;
+	
+    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;
+	}
+    }
+ 
+	(*DANUBE_EBU_BUSCON0)|=0x80000000;	// disable writing
+	(*DANUBE_EBU_BUSCON1)|=0x80000000;	// disable writing
+ 
+        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();
+
+    (*DANUBE_EBU_BUSCON0)&=(~0x80000000);	// enable writing
+    (*DANUBE_EBU_BUSCON1)&=(~0x80000000);	// enable writing
+    (*EBU_NAND_CON)=0;
+    *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	*/
+    asm("SYNC");
+    
+    /* 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	*/
+    flash_reset(info);
+
+    (*DANUBE_EBU_BUSCON0)|=0x80000000;	// disable writing
+    (*DANUBE_EBU_BUSCON1)|=0x80000000;	// disable writing
+ 
+        return (res);
+}