[U-Boot] [PATCH 2/2] nand: extend nand torture

[Max Krummenacher]

nand torture currently works on exactly one nand block which is specified
by giving the byteoffset to the beginning of the block.

Extend this by allowing for a second parameter specifying the byte offset
to the last block to be tested.

e.g.
==> nand torture 1000000

NAND torture: device 0 offset 0x1000000 size 0x20000
passed 1, failed 0

==> nand torture 1000000 1040000

NAND torture: device 0 offset 0x1000000 size 0x20000
passed 2, failed 0

Signed-off-by: Max Krummenacher <max.krummenacher at toradex.com>
---

 cmd/nand.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/cmd/nand.c b/cmd/nand.c
index a6b67e2..615dbd5 100644
--- a/cmd/nand.c
+++ b/cmd/nand.c
@@ -646,6 +646,8 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 #ifdef CONFIG_CMD_NAND_TORTURE
 	if (strcmp(cmd, "torture") == 0) {
+		loff_t endoff;
+		unsigned failed = 0, passed = 0;
 		if (argc < 3)
 			goto usage;
 
@@ -653,13 +655,27 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			puts("Offset is not a valid number\n");
 			return 1;
 		}
-
+		endoff = off + nand->erasesize;
+		if (argc > 3)
+			if (!str2off(argv[3], &endoff)) {
+				puts("End is not a valid number\n");
+				return 1;
+			}
 		printf("\nNAND torture: device %d offset 0x%llx size 0x%x\n",
 			dev, off, nand->erasesize);
-		ret = nand_torture(nand, off);
-		printf(" %s\n", ret ? "Failed" : "Passed");
+		while (off < endoff) {
 
-		return ret == 0 ? 0 : 1;
+			ret = nand_torture(nand, off);
+			if (ret) {
+				failed++;
+				printf(" off 0x%llx %s\n", off, "Failed");
+			} else {
+				passed++;
+			}
+			off += nand->erasesize;
+		}
+		printf("passed %u, failed %u\n", passed, failed);
+		return failed == 0 ? 0 : 1;
 	}
 #endif
 
@@ -775,6 +791,7 @@ static char nand_help_text[] =
 	"nand dump[.oob] off - dump page\n"
 #ifdef CONFIG_CMD_NAND_TORTURE
 	"nand torture off - torture block at offset\n"
+	"nand torture start end - torture blocks from start to end offset\n"
 #endif
 	"nand scrub [-y] off size | scrub.part partition | scrub.chip\n"
 	"    really clean NAND erasing bad blocks (UNSAFE)\n"
-- 
2.5.5