[PATCH 2/2] check if the start address is page-aligned.

[Stanley.Miao]

Only page-aligned address is permitted in NAND subsystem.

Signed-off-by: Stanley.Miao <stanley.miao at windriver.com>
---
 nandwrite.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/nandwrite.c b/nandwrite.c
index 1e30ad1..fbb1153 100644
--- a/nandwrite.c
+++ b/nandwrite.c
@@ -306,6 +306,14 @@ int main(int argc, char * const argv[])
 		close(fd);
 		exit (EXIT_FAILURE);
 	}
+	
+	if (mtdoffset & (meminfo.writesize - 1)) {
+		fprintf(stderr, "The start address is not page-aligned !\n"
+				"The pagesize of this NAND Flash is 0x%x.\n",
+				meminfo.writesize);
+		close(fd);
+		exit(EXIT_FAILURE);
+	}
 
 	if (autoplace) {
 		/* Read the current oob info */
-- 
1.5.4.3