mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-10-31 08:21:36 +01:00
bd6adff22f
Upstream linux commit 229204da53b31d. Move AMD/Spansion specific initialization/detection logic into nand_amd.c. This is part of the "separate vendor specific code from core" cleanup process. Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2017 Free Electrons
|
|
* Copyright (C) 2017 NextThing Co
|
|
*
|
|
* Author: Boris Brezillon <boris.brezillon@free-electrons.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/mtd/rawnand.h>
|
|
|
|
static void amd_nand_decode_id(struct nand_chip *chip)
|
|
{
|
|
struct mtd_info *mtd = nand_to_mtd(chip);
|
|
|
|
nand_decode_ext_id(chip);
|
|
|
|
/*
|
|
* Check for Spansion/AMD ID + repeating 5th, 6th byte since
|
|
* some Spansion chips have erasesize that conflicts with size
|
|
* listed in nand_ids table.
|
|
* Data sheet (5 byte ID): Spansion S30ML-P ORNAND (p.39)
|
|
*/
|
|
if (chip->id.data[4] != 0x00 && chip->id.data[5] == 0x00 &&
|
|
chip->id.data[6] == 0x00 && chip->id.data[7] == 0x00 &&
|
|
mtd->writesize == 512) {
|
|
mtd->erasesize = 128 * 1024;
|
|
mtd->erasesize <<= ((chip->id.data[3] & 0x03) << 1);
|
|
}
|
|
}
|
|
|
|
static int amd_nand_init(struct nand_chip *chip)
|
|
{
|
|
if (nand_is_slc(chip))
|
|
chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct nand_manufacturer_ops amd_nand_manuf_ops = {
|
|
.detect = amd_nand_decode_id,
|
|
.init = amd_nand_init,
|
|
};
|