public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/3] nand: Fix problem with ECC ordering for PPC4xx NDFC platforms
Date: Wed, 20 May 2009 10:58:03 +0200	[thread overview]
Message-ID: <1242809883-10823-3-git-send-email-sr@denx.de> (raw)
In-Reply-To: <1242809883-10823-1-git-send-email-sr@denx.de>

This patch enables Smart Media (SMC) ECC byte ordering which is used
on the PPC4xx NAND FLASH controller (NDFC). Without this patch we have
incompatible ECC byte ordering to the Linux kernel NDFC driver.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
---
 drivers/mtd/nand/nand_ecc.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
index 94923b9..463f9cb 100644
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -48,6 +48,11 @@
 #include <asm/errno.h>
 #include <linux/mtd/mtd.h>
 
+/* The PPC4xx NDFC uses Smart Media (SMC) bytes order */
+#ifdef CONFIG_NAND_NDFC
+#define CONFIG_MTD_NAND_ECC_SMC
+#endif
+
 /*
  * NAND-SPL has no sofware ECC for now, so don't include nand_calculate_ecc(),
  * only nand_correct_data() is needed
-- 
1.6.2.5

  parent reply	other threads:[~2009-05-20  8:58 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-20  8:58 [U-Boot] [PATCH 1/3] ppc4xx: Move definition for PPC4xx NAND FLASH controller to header Stefan Roese
2009-05-20  8:58 ` [U-Boot] [PATCH 2/3] ppc4xx: Fix problem with ECC ordering for PPC4xx NDFC platforms Stefan Roese
2009-05-20  8:58 ` Stefan Roese [this message]
2009-05-20 18:52 ` [U-Boot] [PATCH 1/3] ppc4xx: Move definition for PPC4xx NAND FLASH controller to header Scott Wood
2009-05-23 10:47   ` Stefan Roese

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1242809883-10823-3-git-send-email-sr@denx.de \
    --to=sr@denx.de \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox