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Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2017 Free Electrons
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* Copyright (C) 2017 NextThing Co
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*
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* Author: Boris Brezillon <boris.brezillon@free-electrons.com>
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*/
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#include "internals.h"
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static void amd_nand_decode_id(struct nand_chip *chip)
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{
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struct mtd_info *mtd = nand_to_mtd(chip);
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struct nand_memory_organization *memorg;
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memorg = nanddev_get_memorg(&chip->base);
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nand_decode_ext_id(chip);
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/*
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* Check for Spansion/AMD ID + repeating 5th, 6th byte since
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* some Spansion chips have erasesize that conflicts with size
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* listed in nand_ids table.
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* Data sheet (5 byte ID): Spansion S30ML-P ORNAND (p.39)
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*/
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if (chip->id.data[4] != 0x00 && chip->id.data[5] == 0x00 &&
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chip->id.data[6] == 0x00 && chip->id.data[7] == 0x00 &&
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memorg->pagesize == 512) {
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memorg->pages_per_eraseblock = 256;
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memorg->pages_per_eraseblock <<= ((chip->id.data[3] & 0x03) << 1);
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mtd->erasesize = memorg->pages_per_eraseblock *
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memorg->pagesize;
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}
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}
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static int amd_nand_init(struct nand_chip *chip)
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{
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if (nand_is_slc(chip))
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/*
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* According to the datasheet of some Cypress SLC NANDs,
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* the bad block markers can be in the first, second or last
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* page of a block. So let's check all three locations.
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*/
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chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
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NAND_BBM_LASTPAGE;
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return 0;
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}
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const struct nand_manufacturer_ops amd_nand_manuf_ops = {
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.detect = amd_nand_decode_id,
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.init = amd_nand_init,
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};
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