arm: atmel: add nand trimffs subcommand for at91sam9n12 and at91sam9x5
as the at91sam9n12 and at91sam9x5 soc support PMECC, when use u-boot
to flash the rootfs, in order to avoid flash one sector with all 0xff
into NAND, so use nand trimffs subcommand to avoid it
Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
diff --git a/include/configs/at91sam9n12ek.h b/include/configs/at91sam9n12ek.h
index be8a28c..28a7925 100644
--- a/include/configs/at91sam9n12ek.h
+++ b/include/configs/at91sam9n12ek.h
@@ -122,6 +122,9 @@
#define CONFIG_PMECC_CAP 2
#define CONFIG_PMECC_SECTOR_SIZE 512
#define CONFIG_PMECC_INDEX_TABLE_OFFSET 0x8000
+
+#define CONFIG_CMD_NAND_TRIMFFS
+
#endif
#define CONFIG_MTD_PARTITIONS