[U-Boot] [PATCH] NAND: Add nand read.raw and write.raw commands

[Marek Vasut <marek.vasut@gmail.com>]

These commands should work around various "hardware" ECC and BCH methods. This
is important for example in case where the user needs to write precisely what's
in a buffer to a NAND page, with no interference of hardware ECC engine or such.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
---
 common/cmd_nand.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index b767cd2..ca510ae 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -606,6 +606,20 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 				ret = nand->read_oob(nand, off, &ops);
 			else
 				ret = nand->write_oob(nand, off, &ops);
+		} else if (!strcmp(s, ".raw")) {
+			/* Raw access */
+			mtd_oob_ops_t ops = {
+				.datbuf = (u8 *)addr,
+				.oobbuf = ((u8 *)addr) + nand->writesize,
+				.len = nand->writesize,
+				.ooblen = nand->oobsize,
+				.mode = MTD_OOB_RAW
+			};
+
+			if (read)
+				ret = nand->read_oob(nand, off, &ops);
+			else
+				ret = nand->write_oob(nand, off, &ops);
 		} else {
 			printf("Unknown nand command suffix '%s'.\n", s);
 			return 1;
-- 
1.7.5.4