1 // SPDX-License-Identifier: GPL-2.0-or-later
6  * Author: Boris Brezillon <boris.brezillon@free-electrons.com>
11 static void amd_nand_decode_id(struct nand_chip *chip)  in amd_nand_decode_id()  argument
13 	struct mtd_info *mtd = nand_to_mtd(chip);  in amd_nand_decode_id()
16 	memorg = nanddev_get_memorg(&chip->base);  in amd_nand_decode_id()
18 	nand_decode_ext_id(chip);  in amd_nand_decode_id()
21 	 * Check for Spansion/AMD ID + repeating 5th, 6th byte since  in amd_nand_decode_id()
24 	 * Data sheet (5 byte ID): Spansion S30ML-P ORNAND (p.39)  in amd_nand_decode_id()
26 	if (chip->id.data[4] != 0x00 && chip->id.data[5] == 0x00 &&  in amd_nand_decode_id()
27 	    chip->id.data[6] == 0x00 && chip->id.data[7] == 0x00 &&  in amd_nand_decode_id()
28 	    memorg->pagesize == 512) {  in amd_nand_decode_id()
29 		memorg->pages_per_eraseblock = 256;  in amd_nand_decode_id()
30 		memorg->pages_per_eraseblock <<= ((chip->id.data[3] & 0x03) << 1);  in amd_nand_decode_id()
31 		mtd->erasesize = memorg->pages_per_eraseblock *  in amd_nand_decode_id()
32 				 memorg->pagesize;  in amd_nand_decode_id()
36 static int amd_nand_init(struct nand_chip *chip)  in amd_nand_init()  argument
38 	if (nand_is_slc(chip))  in amd_nand_init()
44 		chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |  in amd_nand_init()