* Patch by Thomas Frieden, 13 Nov 2002:

  Add code for AmigaOne board
  (preliminary merge to U-Boot, still WIP)

* Patch by Jon Diekema, 12 Nov 2002:
  - Adding URL for IEEE OUI lookup
  - Making the autoboot #defines dependent on CONFIG_AUTOBOOT_KEYED
    being defined.
  - In the CONFIG_EXTRA_ENV_SETTINGS #define, the root-on-initrd and
    root-on-nfs macros are designed to switch how the default boot
    method gets defined.

1 files changed, 184 insertions, 0 deletions

diff --git a/tools/updater/flash.c b/tools/updater/flash.c
new file mode 100644
index 0000000..d2e11d2
--- /dev/null
+++ b/tools/updater/flash.c
@@ -0,0 +1,184 @@
+/*
+ * (C) Copyright 2000
+ * 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 <flash.h>
+
+extern flash_info_t  flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+
+/*-----------------------------------------------------------------------
+ * Set protection status for monitor sectors
+ *
+ * The monitor is always located in the _first_ Flash bank.
+ * If necessary you have to map the second bank at lower addresses.
+ */
+void
+flash_protect (int flag, ulong from, ulong to, flash_info_t *info)
+{
+	ulong b_end = info->start[0] + info->size - 1;	/* bank end address */
+	short s_end = info->sector_count - 1;	/* index of last sector */
+	int i;
+
+	/* Do nothing if input data is bad. */
+	if (info->sector_count == 0 || info->size == 0 || to < from) {
+		return;
+	}
+
+	/* There is nothing to do if we have no data about the flash
+	 * or the protect range and flash range don't overlap.
+	 */
+	if (info->flash_id == FLASH_UNKNOWN ||
+	    to < info->start[0] || from > b_end) {
+		return;
+	}
+
+	for (i=0; i<info->sector_count; ++i) {
+		ulong end;		/* last address in current sect	*/
+
+		end = (i == s_end) ? b_end : info->start[i + 1] - 1;
+
+		/* Update protection if any part of the sector
+		 * is in the specified range.
+		 */
+		if (from <= end && to >= info->start[i]) {
+			if (flag & FLAG_PROTECT_CLEAR) {
+#if defined(CFG_FLASH_PROTECTION)
+				flash_real_protect(info, i, 0);
+#else
+				info->protect[i] = 0;
+#endif	/* CFG_FLASH_PROTECTION */
+			}
+			else if (flag & FLAG_PROTECT_SET) {
+#if defined(CFG_FLASH_PROTECTION)
+				flash_real_protect(info, i, 1);
+#else
+				info->protect[i] = 1;
+#endif	/* CFG_FLASH_PROTECTION */
+			}
+		}
+	}
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+flash_info_t *
+addr2info (ulong addr)
+{
+#ifndef CONFIG_SPD823TS
+	flash_info_t *info;
+	int i;
+
+	for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
+		if (info->flash_id != FLASH_UNKNOWN &&
+		    addr >= info->start[0] &&
+		    /* WARNING - The '- 1' is needed if the flash
+		     * is at the end of the address space, since
+		     * info->start[0] + info->size wraps back to 0.
+		     * Please don't change this unless you understand this.
+		     */
+		    addr <= info->start[0] + info->size - 1) {
+			return (info);
+		}
+	}
+#endif /* CONFIG_SPD823TS */
+
+	return (NULL);
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash.
+ * Make sure all target addresses are within Flash bounds,
+ * and no protected sectors are hit.
+ * Returns:
+ * ERR_OK          0 - OK
+ * ERR_TIMOUT      1 - write timeout
+ * ERR_NOT_ERASED  2 - Flash not erased
+ * ERR_PROTECTED   4 - target range includes protected sectors
+ * ERR_INVAL       8 - target address not in Flash memory
+ * ERR_ALIGN       16 - target address not aligned on boundary
+ *			(only some targets require alignment)
+ */
+int
+flash_write (uchar *src, ulong addr, ulong cnt)
+{
+#ifdef CONFIG_SPD823TS
+	return (ERR_TIMOUT);	/* any other error codes are possible as well */
+#else
+	int i;
+	ulong         end        = addr + cnt - 1;
+	flash_info_t *info_first = addr2info (addr);
+	flash_info_t *info_last  = addr2info (end );
+	flash_info_t *info;
+	int j;
+
+	if (cnt == 0) {
+		return (ERR_OK);
+	}
+
+	if (!info_first || !info_last) {
+		return (ERR_INVAL);
+	}
+
+	for (info = info_first; info <= info_last; ++info) {
+		ulong b_end = info->start[0] + info->size;	/* bank end addr */
+		short s_end = info->sector_count - 1;
+		for (i=0; i<info->sector_count; ++i) {
+			ulong e_addr = (i == s_end) ? b_end : info->start[i + 1];
+
+			if ((end >= info->start[i]) && (addr < e_addr) &&
+			    (info->protect[i] != 0) ) {
+				return (ERR_PROTECTED);
+			}
+		}
+	}
+
+	mon_printf("\rWriting ");
+	for (j=0; j<20; j++) mon_putc(177);
+	mon_printf("\rWriting ");
+
+	/* finally write data to flash */
+	for (info = info_first; info <= info_last && cnt>0; ++info) {
+		ulong len;
+
+		len = info->start[0] + info->size - addr;
+		if (len > cnt)
+			len = cnt;
+
+		if ((i = write_buff(info, src, addr, len)) != 0) {
+			return (i);
+		}
+		cnt  -= len;
+		addr += len;
+		src  += len;
+	}
+	return (ERR_OK);
+#endif /* CONFIG_SPD823TS */
+}
+
+/*-----------------------------------------------------------------------
+ */