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mtd: nand: davinci: add support for on-die ECC engine type

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Some chips, e.g. Micron MT29F1G08ABBFAH4, has a mandatory on-die ECC.
Add "on-die" as ECC engine type in order to be compatible with those.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Marcus Folkesson
2024-11-07 14:47:07 +01:00
committed by Miquel Raynal
parent e0a4f50fce
commit ef73c7dad4
1 changed files with 4 additions and 0 deletions
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4
drivers/mtd/nand/raw/davinci_nand.c
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@@ -66,6 +66,7 @@ struct davinci_nand_pdata {
/* none == NAND_ECC_ENGINE_TYPE_NONE (strongly *not* advised!!)
* soft == NAND_ECC_ENGINE_TYPE_SOFT
* on-die == NAND_ECC_ENGINE_TYPE_ON_DIE
* else == NAND_ECC_ENGINE_TYPE_ON_HOST, according to ecc_bits
*
* All DaVinci-family chips support 1-bit hardware ECC.
@@ -525,6 +526,8 @@ nand_davinci_get_pdata(struct platform_device *pdev)
pdata->engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
if (!strncmp("hw", mode, 2))
pdata->engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST;
if (!strncmp("on-die", mode, 6))
pdata->engine_type = NAND_ECC_ENGINE_TYPE_ON_DIE;
}
if (!device_property_read_u32(&pdev->dev,
"ti,davinci-ecc-bits", &prop))
@@ -580,6 +583,7 @@ static int davinci_nand_attach_chip(struct nand_chip *chip)
switch (chip->ecc.engine_type) {
case NAND_ECC_ENGINE_TYPE_NONE:
case NAND_ECC_ENGINE_TYPE_ON_DIE:
pdata->ecc_bits = 0;
break;
case NAND_ECC_ENGINE_TYPE_SOFT: