linux-kernel - [PATCH 3.14 19/78] ARM: OMAP2+: nand: Fix NAND on OMAP2 and OMAP3 boards

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Message-Id: <20140609224813.976309192@linuxfoundation.org>
Date:	Mon,  9 Jun 2014 15:47:59 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Roger Quadros <rogerq@...com>,
	Tony Lindgren <tony@...mide.com>
Subject: [PATCH 3.14 19/78] ARM: OMAP2+: nand: Fix NAND on OMAP2 and OMAP3 boards

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Roger Quadros <rogerq@...com>

commit 5005e0b76781c37d0a16dd6dd17d015098e8ce92 upstream.

Commit c66d039197e4 broke NAND for non-DT boot on all OMAP2 and OMAP3
boards using board_nand_init(). Following error is seen at boot

[    0.154998]  (null): Unsupported NAND ECC scheme selected

For OMAP2 and OMAP3 platforms, the ecc_opt parameter in platform data
must be set to OMAP_ECC_HAM1_CODE_HW to work properly.

Tested on omap3-beagle c4.

Fixes: c66d039197e4 (mtd: nand: omap: combine different flavours of 1-bit hamming ecc schemes)
Signed-off-by: Roger Quadros <rogerq@...com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/arm/mach-omap2/board-flash.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/mach-omap2/board-flash.c
+++ b/arch/arm/mach-omap2/board-flash.c
@@ -142,7 +142,7 @@ __init board_nand_init(struct mtd_partit
 	board_nand_data.nr_parts	= nr_parts;
 	board_nand_data.devsize		= nand_type;
 
-	board_nand_data.ecc_opt = OMAP_ECC_BCH8_CODE_HW;
+	board_nand_data.ecc_opt = OMAP_ECC_HAM1_CODE_HW;
 	gpmc_nand_init(&board_nand_data, gpmc_t);
 }
 #endif /* CONFIG_MTD_NAND_OMAP2 || CONFIG_MTD_NAND_OMAP2_MODULE */


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