From: Adam Ford <aford173@gmail.com>
Date: Thu, 3 Jan 2019 02:36:52 +0000 (-0600)
Subject: MTD: mxs_nand: Fix BCH read timeout error on boards requiring ECC
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=5ae585ba3a8bb2336d5cb6e1ef4c80a5ef445409;p=u-boot.git

MTD: mxs_nand: Fix BCH read timeout error on boards requiring ECC

The LogicPD board uses a Micron Flash with ECC.  To boot this from
SPL, the ECC needs to be correctly configured or the BCH engine
times out.

Signed-off-by: Adam Ford <aford173@gmail.com>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
Tested-by: Jörg Krause <joerg.krause@embedded.rocks>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Tim Harvey <tharvey@gateworks.com>
---

diff --git a/drivers/mtd/nand/raw/mxs_nand.c b/drivers/mtd/nand/raw/mxs_nand.c
index e3341812a2..2d84bfffe2 100644
--- a/drivers/mtd/nand/raw/mxs_nand.c
+++ b/drivers/mtd/nand/raw/mxs_nand.c
@@ -1163,6 +1163,12 @@ int mxs_nand_init_spl(struct nand_chip *nand)
 
 	nand_info->gpmi_regs = (struct mxs_gpmi_regs *)MXS_GPMI_BASE;
 	nand_info->bch_regs = (struct mxs_bch_regs *)MXS_BCH_BASE;
+
+	if (is_mx6sx() || is_mx7())
+		nand_info->max_ecc_strength_supported = 62;
+	else
+		nand_info->max_ecc_strength_supported = 40;
+
 	err = mxs_nand_alloc_buffers(nand_info);
 	if (err)
 		return err;
diff --git a/drivers/mtd/nand/raw/mxs_nand_spl.c b/drivers/mtd/nand/raw/mxs_nand_spl.c
index c628f3adec..ba85baac60 100644
--- a/drivers/mtd/nand/raw/mxs_nand_spl.c
+++ b/drivers/mtd/nand/raw/mxs_nand_spl.c
@@ -201,6 +201,7 @@ static int mxs_nand_init(void)
 	/* setup flash layout (does not scan as we override that) */
 	mtd->size = nand_chip.chipsize;
 	nand_chip.scan_bbt(mtd);
+	mxs_nand_setup_ecc(mtd);
 
 	return 0;
 }