u-boot-lpc2294.patch

将U-boot1.1.4移植到了MagicARM2200平台。Nor_Flash_SST39VF1601检测正常。网络芯片DM9000E工作正常。没有能够实现Nand_Flash的驱动。

+			base += 64 << 10;
+			++i;
+		}
+	} else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322T) ||
+		   ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323T) ||
+		   ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
+		   ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324T)) {
+		/* set sector offsets for top boot block type		*/
+		base += info->size;
+		i = info->sector_count;
+		for (n=0; n<8; ++n) {		/*  8 x 8k boot sectors	*/
+			base -= 8 << 10;
+			--i;
+			info->start[i] = base;
+		}
+		while (i > 0) {			/* 64k regular sectors	*/
+			base -= 64 << 10;
+			--i;
+			info->start[i] = base;
+		}
+	} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) {
+		/* set sector offsets for top boot block type		*/
+		base += info->size;
+		i = info->sector_count;
+		/*  1 x 16k boot sector */
+		base -= 16 << 10;
+		--i;
+		info->start[i] = base;
+		/*  2 x 8k  boot sectors */
+		for (n=0; n<2; ++n) {
+			base -= 8 << 10;
+			--i;
+			info->start[i] = base;
+		}
+		/*  1 x 32k boot sector */
+		base -= 32 << 10;
+		--i;
+		info->start[i] = base;
+
+		while (i > 0) {			/* 64k regular sectors	*/
+			base -= 64 << 10;
+			--i;
+			info->start[i] = base;
+		}
+	} else {
+	    if (info->flash_id & FLASH_BTYPE) {
+		/* set sector offsets for bottom boot block type	*/
+		info->start[0] = base + 0x00000000;
+		info->start[1] = base + 0x00004000;
+		info->start[2] = base + 0x00006000;
+		info->start[3] = base + 0x00008000;
+		for (i = 4; i < info->sector_count; i++) {
+			info->start[i] = base + (i * 0x00010000) - 0x00030000;
+		}
+	    } else {
+		/* set sector offsets for top boot block type		*/
+		i = info->sector_count - 1;
+		info->start[i--] = base + info->size - 0x00004000;
+		info->start[i--] = base + info->size - 0x00006000;
+		info->start[i--] = base + info->size - 0x00008000;
+		for (; i >= 0; i--) {
+			info->start[i] = base + i * 0x00010000;
+		}
+	    }
+	}
+
+	/* check for protected sectors */
+	for (i = 0; i < info->sector_count; i++) {
+		/* read sector protection at sector address, (A7 .. A0) = 0x02 */
+		/* D0 = 1 if protected */
+		addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
+		if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+		  info->protect[i] = 0;
+		else
+		  info->protect[i] = addr2[CFG_FLASH_READ2] & 1;
+	}
+
+	/*
+	 * Prevent writes to uninitialized FLASH.
+	 */
+	if (info->flash_id != FLASH_UNKNOWN) {
+		addr2 = (CFG_FLASH_WORD_SIZE *)info->start[0];
+		*addr2 = (CFG_FLASH_WORD_SIZE)0x00F000F0;	/* reset bank */
+	}
+
+	return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int	flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+	volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *)(info->start[0]);
+	volatile CFG_FLASH_WORD_SIZE *addr2;
+	int flag, prot, sect, l_sect;
+	ulong start, now, last;
+	int i;
+
+	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;
+	}
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("Can't erase unknown flash type - aborted\n");
+		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");
+	}
+
+	l_sect = -1;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect<=s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+		    addr2 = (CFG_FLASH_WORD_SIZE *)(info->start[sect]);
+		    if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
+			addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
+			addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
+			addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00800080;
+			addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
+			addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
+			addr2[0] = (CFG_FLASH_WORD_SIZE)0x00500050;  /* block erase */
+			for (i=0; i<50; i++)
+			  udelay(1000);  /* wait 1 ms */
+		    } else {
+			if (sect == s_first) {
+			    addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
+			    addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
+			    addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00800080;
+			    addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
+			    addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
+			}
+			addr2[0] = (CFG_FLASH_WORD_SIZE)0x00300030;  /* sector erase */
+		    }
+		    l_sect = sect;
+		}
+	}
+
+	/* re-enable interrupts if necessary */
+	if (flag)
+		enable_interrupts();
+
+	/* wait at least 80us - let's wait 1 ms */
+	udelay (1000);
+
+	/*
+	 * We wait for the last triggered sector
+	 */
+	if (l_sect < 0)
+		goto DONE;
+
+	start = get_timer (0);
+	last  = start;
+	addr = (CFG_FLASH_WORD_SIZE *)(info->start[l_sect]);
+	while ((addr[0] & (CFG_FLASH_WORD_SIZE)0x00800080) != (CFG_FLASH_WORD_SIZE)0x00800080) {
+		if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+			printf ("Timeout\n");
+			return 1;
+		}
+		/* show that we're waiting */
+		if ((now - last) > 1000) {	/* every second */
+			putc ('.');
+			last = now;
+		}
+	}
+
+DONE:
+	/* reset to read mode */
+	addr = (CFG_FLASH_WORD_SIZE *)info->start[0];
+	addr[0] = (CFG_FLASH_WORD_SIZE)0x00F000F0;	/* reset bank */
+
+	printf (" done\n");
+	return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * 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)
+{
+	ulong cp, wp, data;
+	int i, l, rc;
+
+	wp = (addr & ~3);	/* get lower word aligned address */
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i=0, cp=wp; i<l; ++i, ++cp) {
+#ifdef CONFIG_LPC
+			data = data | ((*(uchar *)cp)<<(8*i));
+#else
+			data = (data << 8) | (*(uchar *)cp);
+#endif
+		}
+		for (; i<4 && cnt>0; ++i) {
+#ifdef CONFIG_LPC
+			data = data  | ((*src++)<<(8*i));
+#else
+			data = (data << 8) | *src++;
+#endif
+			--cnt;
+			++cp;
+		}
+		for (; cnt==0 && i<4; ++i, ++cp) {
+#ifdef CONFIG_LPC
+			data = data | ((*(uchar *)cp)<<(8*i));
+#else
+			data = (data << 8) | (*(uchar *)cp);
+#endif
+		}
+
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp += 4;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 4) {
+		data = 0;
+#ifdef CONFIG_LPC
+		data = (*(ulong*)src);
+		src += 4;
+#else
+		for (i=0; i<4; ++i) {
+			data = (data << 8) | *src++;
+		}
+#endif
+		if ((rc = write_word(info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp  += 4;
+		cnt -= 4;
+	}
+
+	if (cnt == 0) {
+		return (0);
+	}
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+#ifdef CONFIG_LPC
+		data = data  | ((*src++)<<(8*i));
+#else
+		data = (data << 8) | *src++;
+#endif
+		--cnt;
+	}
+	for (; i<4; ++i, ++cp) {
+#ifdef CONFIG_LPC
+		data = data | ((*(uchar *)cp)<<(8*i));
+#else
+		data = (data << 8) | (*(uchar *)cp);
+#endif
+	}
+
+	return (write_word(info, wp, data));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t *info, ulong dest, ulong data)
+{
+	volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *)(info->start[0]);
+	volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *)dest;
+	volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *)&data;
+	ulong start;
+	int flag;
+	int i;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*((volatile ulong *)dest) & data) != data) {
+		return (2);
+	}
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts();
+
+	for (i=0; i<4/sizeof(CFG_FLASH_WORD_SIZE); i++)
+	  {
+	    addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
+	    addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
+	    addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00A000A0;
+
+	    dest2[i] = data2[i];
+
+	    /* re-enable interrupts if necessary */
+	    if (flag)
+	      enable_interrupts();
+
+	    /* data polling for D7 */
+	    start = get_timer (0);
+	    while ((dest2[i] & (CFG_FLASH_WORD_SIZE)0x00800080) !=
+		   (data2[i] & (CFG_FLASH_WORD_SIZE)0x00800080)) {
+	      if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+		return (1);
+	      }
+	    }
+	  }
+
+	return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
diff -Naur u-boot-origin/board/lpc2294/lowlevel_init.S u-boot-1.1.3/board/lpc2294/lowlevel_init.S
--- u-boot-origin/board/lpc2294/lowlevel_init.S	1970-01-01 07:00:00.000000000 +0700
+++ u-boot-1.1.3/board/lpc2294/lowlevel_init.S	2005-09-07 10:16:32.000000000 +0800
@@ -0,0 +1,184 @@
+/*
+ * (C) Copyright 2004
+ * DAVE Srl
+ *
+ * http://www.dave-tech.it
+ * http://www.wawnet.biz
+ * mailto:[e-mail]
+ *
+ * memsetup-sa1110.S (blob): memory setup for various SA1110 architectures
+ * Modified By MATTO
+ *
+ * Copyright (C) 2001 Erik Mouw ([e-mail])
+ *
+ * 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
+ *
+ */
+
+/*
+ * Documentation:
+ * Intel Corporation, "Intel StrongARM SA-1110 Microprocessor
+ *     Advanced Developer's manual, December 1999
+ *
+ * Intel has a very hard to find SDRAM configurator on their web site:
+ *   http://appzone.intel.com/hcd/sa1110/memory/index.asp
+ *
+ * NOTE: This code assumes that an SA1110 CPU *always* uses SDRAM. This
+ * appears to be true, but it might be possible that somebody designs a
+ * board with mixed EDODRAM/SDRAM memory (which is a bad idea). -- Erik
+ *
+ * 04-10-2001:  SELETZ
+ * - separated memory config for multiple platform support
+ * - perform SA1110 Hardware Reset Procedure
+ *
+ */
+
+.equ    B0_Tacs,      0x0 /* 0clk */
+.equ    B0_Tcos,      0x0 /* 0clk */
+.equ    B0_Tacc,      0x4 /* 6clk */
+.equ    B0_Tcoh,      0x0 /* 0clk */
+.equ    B0_Tah,       0x0 /* 0clk */
+.equ    B0_Tacp,      0x0 /* 0clk */
+.equ    B0_PMC,       0x0 /* normal(1data) */
+/* Bank 1 parameter */
+.equ    B1_Tacs,      0x3 /* 4clk */
+.equ    B1_Tcos,      0x3 /* 4clk */
+.equ    B1_Tacc,      0x7 /* 14clkv */
+.equ    B1_Tcoh,      0x3 /* 4clk */
+.equ    B1_Tah,       0x3 /* 4clk */
+.equ    B1_Tacp,      0x3 /* 6clk */
+.equ    B1_PMC,       0x0 /* normal(1data) */
+
+/* Bank 2 parameter - LAN91C96 */
+.equ    B2_Tacs,      0x3 /* 4clk */
+.equ    B2_Tcos,      0x3 /* 4clk */
+.equ    B2_Tacc,      0x7 /* 14clk */
+.equ    B2_Tcoh,      0x3 /* 4clk */
+.equ    B2_Tah,       0x3 /* 4clk */
+.equ    B2_Tacp,      0x3 /* 6clk */
+.equ    B2_PMC,       0x0 /* normal(1data) */
+
+/* Bank 3 parameter */
+.equ    B3_Tacs,      0x3 /* 4clk */
+.equ    B3_Tcos,      0x3 /* 4clk */
+.equ    B3_Tacc,      0x7 /* 14clk */
+.equ    B3_Tcoh,      0x3 /* 4clk */
+.equ    B3_Tah,       0x3 /* 4clk */
+.equ    B3_Tacp,      0x3 /* 6clk */
+.equ    B3_PMC,       0x0 /* normal(1data) */
+
+/* Bank 4 parameter */
+.equ    B4_Tacs,      0x3 /* 4clk */
+.equ    B4_Tcos,      0x3 /* 4clk */
+.equ    B4_Tacc,      0x7 /* 14clk */
+.equ    B4_Tcoh,      0x3 /* 4clk */
+.equ    B4_Tah,       0x3 /* 4clk */
+.equ    B4_Tacp,      0x3 /* 6clk */
+.equ    B4_PMC,       0x0 /* normal(1data) */
+
+/* Bank 5 parameter */
+.equ    B5_Tacs,      0x3 /* 4clk */
+.equ    B5_Tcos,      0x3 /* 4clk */
+.equ    B5_Tacc,      0x7 /* 14clk */
+.equ    B5_Tcoh,      0x3 /* 4clk */
+.equ    B5_Tah,       0x3 /* 4clk */
+.equ    B5_Tacp,      0x3 /* 6clk */
+.equ    B5_PMC,       0x0 /* normal(1data) */
+
+/* Bank 6(if SROM) parameter */
+.equ    B6_Tacs,      0x3 /* 4clk */
+.equ    B6_Tcos,      0x3 /* 4clk */
+.equ    B6_Tacc,      0x7 /* 14clk */
+.equ    B6_Tcoh,      0x3 /* 4clk */
+.equ    B6_Tah,       0x3 /* 4clk */
+.equ    B6_Tacp,      0x3 /* 6clk */
+.equ    B6_PMC,       0x0 /* normal(1data) */
+
+/* Bank 7(if SROM) parameter */
+.equ    B7_Tacs,      0x3 /* 4clk */
+.equ    B7_Tcos,      0x3 /* 4clk */
+.equ    B7_Tacc,      0x7 /* 14clk */
+.equ    B7_Tcoh,      0x3 /* 4clk */
+.equ    B7_Tah,       0x3 /* 4clk */
+.equ    B7_Tacp,      0x3 /* 6clk */
+.equ    B7_PMC,       0x0 /* normal(1data) */
+
+/* Bank 6 parameter */
+.equ    B6_MT,        0x3 /* SDRAM */
+.equ    B6_Trcd,      0x0 /* 2clk */