04649ec133
The information about where the manufacturer puts the bad block markers inside the bad block and in the OOB data is stored in different places. Let's move this information to nand_chip.options and nand_chip.badblockpos. As this chip-specific information is not directly related to the bad block table (BBT), we also rename the flags to NAND_BBM_*. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
48 lines
974 B
C
48 lines
974 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018 Toradex AG
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*
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* Author: Marcel Ziswiler <marcel.ziswiler@toradex.com>
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*/
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#include <linux/mtd/rawnand.h>
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#include "internals.h"
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static void esmt_nand_decode_id(struct nand_chip *chip)
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{
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nand_decode_ext_id(chip);
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/* Extract ECC requirements from 5th id byte. */
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if (chip->id.len >= 5 && nand_is_slc(chip)) {
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chip->base.eccreq.step_size = 512;
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switch (chip->id.data[4] & 0x3) {
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case 0x0:
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chip->base.eccreq.strength = 4;
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break;
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case 0x1:
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chip->base.eccreq.strength = 2;
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break;
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case 0x2:
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chip->base.eccreq.strength = 1;
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break;
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default:
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WARN(1, "Could not get ECC info");
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chip->base.eccreq.step_size = 0;
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break;
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}
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}
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}
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static int esmt_nand_init(struct nand_chip *chip)
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{
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if (nand_is_slc(chip))
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chip->options |= NAND_BBM_SECONDPAGE;
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return 0;
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}
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const struct nand_manufacturer_ops esmt_nand_manuf_ops = {
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.detect = esmt_nand_decode_id,
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.init = esmt_nand_init,
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};
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