Flashrom only checks for very few chips if the erase worked

And even when it checks if the erase worked, the result of that check is
often ignored.

Convert all erase functions and actually check return codes
almost everywhere.
Check inside all erase_* routines if erase worked, not outside.
erase_sector_jedec and erase_block_jedec have changed prototypes to
enable erase checking.

Uwe successfully tested LPC on an CK804 box and SPI on some SB600 box.

Corresponding to flashrom svn r595.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/m29f002.c b/m29f002.c
index 8ad86d2..00cbbc1 100644
--- a/m29f002.c
+++ b/m29f002.c
@@ -31,12 +31,19 @@
 	chip_writeb(0x10, bios + 0x555);
 	programmer_delay(10);
 	toggle_ready_jedec(bios);
+	if (check_erased_range(flash, 0, flash->total_size * 1024)) {
+		fprintf(stderr, "ERASE FAILED!\n");
+		return -1;
+	}
 	return 0;
 }
 
-static void rewrite_block(chipaddr bios, uint8_t *src,
-			  chipaddr dst, int size)
+static int rewrite_block(struct flashchip *flash, uint8_t *src,
+			  unsigned long start, int size)
 {
+	chipaddr bios = flash->virtual_memory;
+	chipaddr dst = bios + start;
+
 	/* erase */
 	chip_writeb(0xaa, bios + 0x555);
 	chip_writeb(0x55, bios + 0xaaa);
@@ -46,6 +53,10 @@
 	chip_writeb(0x30, dst);
 	programmer_delay(10);
 	toggle_ready_jedec(bios);
+	if (check_erased_range(flash, start, size)) {
+		fprintf(stderr, "ERASE FAILED!\n");
+		return -1;
+	}
 
 	/* program */
 	while (size--) {
@@ -57,20 +68,24 @@
 		dst++;
 		src++;
 	}
+	return 0;
 }
 
-static void do_block(chipaddr bios, uint8_t *src, int i,
+static int do_block(struct flashchip *flash, uint8_t *src, int i,
 		     unsigned long start, int size)
 {
+	int ret;
 	printf("%d at address: 0x%08lx", i, start);
-	rewrite_block(bios, src + start, bios + start, size);
+	ret = rewrite_block(flash, src + start, start, size);
+	if (ret)
+		return ret;
 	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");
+	return 0;
 }
 
 int write_m29f002t(struct flashchip *flash, uint8_t *buf)
 {
 	int i, page_size = flash->page_size;
-	chipaddr bios = flash->virtual_memory;
 
 	/* M29F002(N)T has 7 blocks. From bottom to top their sizes are:
 	 * 64k 64k 64k 32k 8k 8k 16k
@@ -79,11 +94,11 @@
 
 	printf("Programming block: ");
 	for (i = 0; i < 3; i++)
-		do_block(bios, buf, i, i * page_size, page_size);
-	do_block(bios, buf, i++, 0x30000, 32 * 1024);
-	do_block(bios, buf, i++, 0x38000, 8 * 1024);
-	do_block(bios, buf, i++, 0x3a000, 8 * 1024);
-	do_block(bios, buf, i, 0x3c000, 16 * 1024);
+		do_block(flash, buf, i, i * page_size, page_size);
+	do_block(flash, buf, i++, 0x30000, 32 * 1024);
+	do_block(flash, buf, i++, 0x38000, 8 * 1024);
+	do_block(flash, buf, i++, 0x3a000, 8 * 1024);
+	do_block(flash, buf, i, 0x3c000, 16 * 1024);
 
 	printf("\n");
 	return 0;
@@ -92,7 +107,6 @@
 int write_m29f002b(struct flashchip *flash, uint8_t *buf)
 {
 	int i = 0, page_size = flash->page_size;
-	chipaddr bios = flash->virtual_memory;
 
 	/* M29F002B has 7 blocks. From bottom to top their sizes are:
 	 * 16k 8k 8k 32k 64k 64k 64k
@@ -100,12 +114,12 @@
 	 */
 
 	printf("Programming block: ");
-	do_block(bios, buf, i++, 0x00000, 16 * 1024);
-	do_block(bios, buf, i++, 0x04000, 8 * 1024);
-	do_block(bios, buf, i++, 0x06000, 8 * 1024);
-	do_block(bios, buf, i++, 0x08000, 32 * 1024);
+	do_block(flash, buf, i++, 0x00000, 16 * 1024);
+	do_block(flash, buf, i++, 0x04000, 8 * 1024);
+	do_block(flash, buf, i++, 0x06000, 8 * 1024);
+	do_block(flash, buf, i++, 0x08000, 32 * 1024);
 	for (; i < 7; i++)
-		do_block(bios, buf, i, (i - 3) * page_size, page_size);
+		do_block(flash, buf, i, (i - 3) * page_size, page_size);
 
 	printf("\n");
 	return 0;