--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/loadtools/flashops.c	Tue Jun 17 00:33:05 2014 +0000
@@ -0,0 +1,95 @@
+/*
+ * This module implements those flash operations which are dependent
+ * on the AMD vs. Intel command set style.
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <time.h>
+#include "flash.h"
+
+/* common stub functions */
+
+static
+noop()
+{
+	return(0);
+}
+
+static
+invalid()
+{
+	fprintf(stderr,
+	      "This operation is not applicable to the selected flash type\n");
+	return(-1);
+}
+
+/* AMD flash functions */
+
+amd_reset_cmd(bi)
+	struct flash_bank_info *bi;
+{
+	if (do_w16(bi->base_addr + 0xAAA, 0xF0)) {
+		fprintf(stderr,
+	"unexpected response to w16 when resetting flash to read mode!\n");
+		return(-1);
+	}
+	return(0);
+}
+
+amd_sector_erase(bi, sp)
+	struct flash_bank_info *bi;
+	struct sector_info *sp;
+{
+	int stat;
+	uint16_t flstat;
+	time_t start_time, curtime;
+
+	stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0xAA);
+	if (stat) {
+bad_w16:	fprintf(stderr,
+	"unexpected response to w16 in erase cmd sequence - aborting\n");
+		return(-1);
+	}
+	stat = do_w16(bi->base_addr + sp->start + 0x554, 0x55);
+	if (stat)
+		goto bad_w16;
+	stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0x80);
+	if (stat)
+		goto bad_w16;
+	stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0xAA);
+	if (stat)
+		goto bad_w16;
+	stat = do_w16(bi->base_addr + sp->start + 0x554, 0x55);
+	if (stat)
+		goto bad_w16;
+	stat = do_w16(bi->base_addr + sp->start + 0xAAA, 0x30);
+	if (stat)
+		goto bad_w16;
+	start_time = time(0);
+	for (;;) {
+		stat = do_r16(bi->base_addr + sp->start, &flstat);
+		if (stat)
+			return(stat);	/* error msg already printed */
+		if (flstat == 0xFFFF)
+			return(0);
+		curtime = time(0);
+		if (curtime >= start_time + 20) {
+			fprintf(stderr, "erase timeout, aborting\n");
+			return(-1);
+		}
+	}
+}
+
+struct flash_cmdset flash_cmdset_amd = {
+	.cmdset_name		= "AMD",
+	.reset_cmd		= amd_reset_cmd,
+	.status_cmd		= invalid,
+	.unlock_sector		= invalid,
+	.erase_sector		= amd_sector_erase,
+	.prep_for_program	= noop,
+	.loadagent_setbase_cmd	= "AMFB",
+	.loadagent_program_cmd	= "AMFW",
+};