1 files changed, 72 insertions, 0 deletions
diff --git a/util/flashrom/sst49lf040.c b/util/flashrom/sst49lf040.c
new file mode 100644
index 0000000000..f19b91e1c2
--- /dev/null
+++ b/util/flashrom/sst49lf040.c
@@ -0,0 +1,72 @@
+/* sst40lf020.c: driver for SST40LF040 flash models.
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *      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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *      4 MEgabit (512K x 8) SuperFlash EEPROM, SST49lF040 data sheet
+ *
+ * ToDo: Consilidated to standard JEDEC code.
+ *
+ * $Id$
+ */
+#include <stdio.h>
+#include "flash.h"
+#include "jedec.h"
+#include "sst49lf040.h"
+
+int erase_49lf040(struct flashchip *flash)
+{
+        int i;
+        int total_size = flash->total_size * 1024;
+        int page_size = flash->page_size;
+        volatile char *bios = flash->virt_addr;
+
+        for (i = 0; i < total_size / page_size; i++) {
+		/* Chip erase only works in parallel programming mode
+		 * for the 49lf040. Use sector-erase instead */
+		erase_sector_jedec(bios, i * page_size);
+	}         
+	return 0;
+}
+
+int write_49lf040(struct flashchip *flash, unsigned char *buf)
+{
+	int i;
+	int total_size = flash->total_size * 1024;
+	int page_size = flash->page_size;
+	volatile char *bios = flash->virt_addr;
+
+	printf("Programming Page: ");
+	for (i = 0; i < total_size / page_size; i++) {
+		/* erase the page before programming
+		 * Chip erase only works in parallel programming mode
+		 * for the 49lf040. Use sector-erase instead */
+		erase_sector_jedec(bios, i * page_size);
+
+		/* write to the sector */
+		printf("%04d at address: 0x%08x ", i, i * page_size);
+		write_sector_jedec(bios, buf + i * page_size,
+				   bios + i * page_size, page_size);
+		printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+		fflush(stdout);
+	}
+	printf("\n");
+
+	return (0);
+}