From: Adam Ford <aford173@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] MTD: mxs_nand: Fix BCH read timeout error on boards requiring ECC
Date: Wed, 2 Jan 2019 20:36:52 -0600 [thread overview]
Message-ID: <20190103023652.8489-1-aford173@gmail.com> (raw)
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>
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;
}
--
2.17.1
next reply other threads:[~2019-01-03 2:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-03 2:36 Adam Ford [this message]
2019-01-03 15:55 ` [U-Boot] [PATCH] MTD: mxs_nand: Fix BCH read timeout error on boards requiring ECC Stefan Agner
2019-02-02 13:21 ` Jörg Krause
2019-02-04 18:17 ` Tim Harvey
2019-02-10 13:30 ` Adam Ford
2019-02-10 13:48 ` Adam Ford
2019-02-12 21:38 ` Scott Wood
2019-02-12 21:44 ` Adam Ford
2019-02-12 23:05 ` Tom Rini
2019-02-13 7:42 ` Stefano Babic
2019-02-16 10:26 ` [U-Boot] " sbabic at denx.de
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