--- a/loadtools/Makefile	Sun Jun 23 20:13:59 2013 +0000
+++ b/loadtools/Makefile	Sun Jun 23 20:50:41 2013 +0000
@@ -9,7 +9,7 @@
 IRAM_OBJS=	defpath.o hexdecode.o hwparam.o hwparamstubs.o romload.o \
 		sercomm.o sertool.o srecreader.o ttypassthru.o
 
-LOADTOOL_OBJS=	crc32tab.o defpath.o hexdecode.o hwparam.o labaud.o \
+LOADTOOL_OBJS=	crc32tab.o defpath.o flutil.o hexdecode.o hwparam.o labaud.o \
 		ltdispatch.o ltdump.o ltexit.o ltflash.o ltmain.o ltpassthru.o \
 		ltscript.o romload.o sercomm.o srecreader.o tpinterf.o \
 		tpinterf2.o

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/loadtools/flutil.c	Sun Jun 23 20:50:41 2013 +0000
@@ -0,0 +1,34 @@
+/*
+ * Miscellaneous utility functions for flash support
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include "flash.h"
+
+extern struct flash_bank_info flash_bank_info[2];
+
+compute_flash_totsize_nsecs(bank)
+{
+	struct flash_bank_info *bi;
+	struct flash_region_desc *reg;
+
+	bi = flash_bank_info + bank;
+	for (reg = bi->bank_desc->regions; reg->nsectors; reg++) {
+		bi->nsectors += reg->nsectors;
+		bi->total_size += reg->sector_size * reg->nsectors;
+	}
+}
+
+/* the following function is used to verify that total_size is a power of 2 */
+count_ones(word)
+	uint32_t word;
+{
+	int count;
+
+	for (count = 0; word; word >>= 1)
+		count += word & 1;
+	return count;
+}

--- a/loadtools/ltflash.c	Sun Jun 23 20:13:59 2013 +0000
+++ b/loadtools/ltflash.c	Sun Jun 23 20:50:41 2013 +0000
@@ -54,6 +54,7 @@
 	char *cp, *np, *ep;
 	struct flash_device_desc *tp;
 	int bank;
+	struct flash_bank_info *bi;
 
 	if (selected_flash_device) {
 		fprintf(stderr, "%s line %d: duplicate flash setting\n",
@@ -93,7 +94,8 @@
 			;
 		if (*cp)
 			*cp++ = '\0';
-		flash_bank_info[bank].base_addr = strtoul(np, &ep, 16);
+		bi = flash_bank_info + bank;
+		bi->base_addr = strtoul(np, &ep, 16);
 		if (*ep) {
 			fprintf(stderr,
 "%s line %d: syntax error (base addr expected after flash device type)\n",
@@ -101,9 +103,21 @@
 			exit(1);
 		}
 		/* the rest comes from the flash device type */
-		flash_bank_info[bank].bank_desc =
-				selected_flash_device->bank_desc + bank;
-		/* TODO: call function to init total_size and nsectors */
+		bi->bank_desc = selected_flash_device->bank_desc + bank;
+		compute_flash_totsize_nsecs(bank);
+		if (count_ones(bi->total_size) != 1) {
+			fprintf(stderr,
+"fc-loadtool internal bug: flash bank %d size for %s is not a power of 2\n",
+				bank, selected_flash_device->name);
+			exit(1);
+		}
+		if (bi->base_addr & (bi->total_size - 1)) {
+			fprintf(stderr,
+"%s line %d: flash bank %d base addr is not aligned to the bank size (0x%lx)\n",
+				filename_for_errs, lineno_for_errs, bank,
+				(u_long) bi->total_size);
+			exit(1);
+		}
 	}
 	while (isspace(*cp))
 		cp++;