1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2020 exceet electronics GmbH 4 * 5 * Authors: 6 * Frieder Schrempf <frieder.schrempf@exceet.de> 7 * Boris Brezillon <boris.brezillon@bootlin.com> 8 */ 9 10 #ifndef __UBOOT__ 11 #include <linux/device.h> 12 #include <linux/kernel.h> 13 #endif 14 #include <linux/mtd/spinand.h> 15 16 #define SPINAND_MFR_HYF 0xC9 17 18 static SPINAND_OP_VARIANTS(read_cache_variants, 19 SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), 20 SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), 21 SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), 22 SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), 23 SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), 24 SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); 25 26 static SPINAND_OP_VARIANTS(write_cache_variants, 27 SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), 28 SPINAND_PROG_LOAD(true, 0, NULL, 0)); 29 30 static SPINAND_OP_VARIANTS(update_cache_variants, 31 SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), 32 SPINAND_PROG_LOAD(false, 0, NULL, 0)); 33 34 static int hyf1gq4upacae_ooblayout_ecc(struct mtd_info *mtd, int section, 35 struct mtd_oob_region *region) 36 { 37 if (section) 38 return -ERANGE; 39 40 region->offset = 64; 41 region->length = 64; 42 43 return 0; 44 } 45 46 static int hyf1gq4upacae_ooblayout_free(struct mtd_info *mtd, int section, 47 struct mtd_oob_region *region) 48 { 49 if (section) 50 return -ERANGE; 51 52 region->offset = 1; 53 region->length = 63; 54 55 return 0; 56 } 57 58 static const struct mtd_ooblayout_ops hyf1gq4upacae_ooblayout = { 59 .ecc = hyf1gq4upacae_ooblayout_ecc, 60 .rfree = hyf1gq4upacae_ooblayout_free, 61 }; 62 63 static int hyf1gq4udacae_ooblayout_ecc(struct mtd_info *mtd, int section, 64 struct mtd_oob_region *region) 65 { 66 if (section > 3) 67 return -ERANGE; 68 69 region->offset = (16 * section) + 8; 70 region->length = 8; 71 72 return 0; 73 } 74 75 static int hyf1gq4udacae_ooblayout_free(struct mtd_info *mtd, int section, 76 struct mtd_oob_region *region) 77 { 78 if (section > 3) 79 return -ERANGE; 80 81 region->offset = (16 * section) + 4; 82 region->length = 4; 83 84 return 0; 85 } 86 87 static const struct mtd_ooblayout_ops hyf1gq4udacae_ooblayout = { 88 .ecc = hyf1gq4udacae_ooblayout_ecc, 89 .rfree = hyf1gq4udacae_ooblayout_free, 90 }; 91 92 static int hyf2gq4uaacae_ooblayout_ecc(struct mtd_info *mtd, int section, 93 struct mtd_oob_region *region) 94 { 95 if (section > 3) 96 return -ERANGE; 97 98 region->offset = (32 * section) + 8; 99 region->length = 24; 100 101 return 0; 102 } 103 104 static int hyf2gq4uaacae_ooblayout_free(struct mtd_info *mtd, int section, 105 struct mtd_oob_region *region) 106 { 107 if (section > 3) 108 return -ERANGE; 109 110 region->offset = 16 * section; 111 region->length = 8; 112 113 return 0; 114 } 115 116 static const struct mtd_ooblayout_ops hyf2gq4uaacae_ooblayout = { 117 .ecc = hyf2gq4uaacae_ooblayout_ecc, 118 .rfree = hyf2gq4uaacae_ooblayout_free, 119 }; 120 121 static int hyf1gq4udacae_ecc_get_status(struct spinand_device *spinand, 122 u8 status) 123 { 124 struct nand_device *nand = spinand_to_nand(spinand); 125 126 switch (status & STATUS_ECC_MASK) { 127 case STATUS_ECC_NO_BITFLIPS: 128 return 0; 129 130 case STATUS_ECC_UNCOR_ERROR: 131 return -EBADMSG; 132 133 case STATUS_ECC_HAS_BITFLIPS: 134 return 1; 135 136 default: 137 return nand->eccreq.strength; 138 } 139 140 return -EINVAL; 141 } 142 143 static const struct spinand_info hyf_spinand_table[] = { 144 SPINAND_INFO("HYF1GQ4UPACAE", 0xA1, 145 NAND_MEMORG(1, 2048, 128, 64, 1024, 1, 1, 1), 146 NAND_ECCREQ(1, 512), 147 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 148 &write_cache_variants, 149 &update_cache_variants), 150 SPINAND_HAS_QE_BIT, 151 SPINAND_ECCINFO(&hyf1gq4upacae_ooblayout, NULL)), 152 SPINAND_INFO("HYF1GQ4UDACAE", 0x21, 153 NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1), 154 NAND_ECCREQ(4, 512), 155 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 156 &write_cache_variants, 157 &update_cache_variants), 158 SPINAND_HAS_QE_BIT, 159 SPINAND_ECCINFO(&hyf1gq4udacae_ooblayout, 160 hyf1gq4udacae_ecc_get_status)), 161 SPINAND_INFO("HYF1GQ4UDACAE", 0x22, 162 NAND_MEMORG(1, 2048, 64, 64, 2048, 1, 1, 1), 163 NAND_ECCREQ(4, 512), 164 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 165 &write_cache_variants, 166 &update_cache_variants), 167 SPINAND_HAS_QE_BIT, 168 SPINAND_ECCINFO(&hyf1gq4udacae_ooblayout, 169 hyf1gq4udacae_ecc_get_status)), 170 SPINAND_INFO("HYF2GQ4UAACAE", 0x52, 171 NAND_MEMORG(1, 2048, 128, 64, 2048, 1, 1, 1), 172 NAND_ECCREQ(14, 512), 173 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 174 &write_cache_variants, 175 &update_cache_variants), 176 SPINAND_HAS_QE_BIT, 177 SPINAND_ECCINFO(&hyf2gq4uaacae_ooblayout, 178 hyf1gq4udacae_ecc_get_status)), 179 SPINAND_INFO("HYF2GQ4UHCCAE", 0x5A, 180 NAND_MEMORG(1, 2048, 128, 64, 2048, 1, 1, 1), 181 NAND_ECCREQ(14, 512), 182 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 183 &write_cache_variants, 184 &update_cache_variants), 185 SPINAND_HAS_QE_BIT, 186 SPINAND_ECCINFO(&hyf2gq4uaacae_ooblayout, 187 hyf1gq4udacae_ecc_get_status)), 188 SPINAND_INFO("HYF4GQ4UAACBE", 0xD4, 189 NAND_MEMORG(1, 4096, 128, 64, 2048, 1, 1, 1), 190 NAND_ECCREQ(4, 512), 191 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 192 &write_cache_variants, 193 &update_cache_variants), 194 SPINAND_HAS_QE_BIT, 195 SPINAND_ECCINFO(&hyf2gq4uaacae_ooblayout, 196 hyf1gq4udacae_ecc_get_status)), 197 }; 198 199 /** 200 * hyf_spinand_detect - initialize device related part in spinand_device 201 * struct if it is a hyf device. 202 * @spinand: SPI NAND device structure 203 */ 204 static int hyf_spinand_detect(struct spinand_device *spinand) 205 { 206 u8 *id = spinand->id.data; 207 int ret; 208 209 /* 210 * hyf SPI NAND read ID needs a dummy byte, so the first byte in 211 * raw_id is garbage. 212 */ 213 if (id[1] != SPINAND_MFR_HYF) 214 return 0; 215 216 ret = spinand_match_and_init(spinand, hyf_spinand_table, 217 ARRAY_SIZE(hyf_spinand_table), 218 id[2]); 219 if (ret) 220 return ret; 221 222 return 1; 223 } 224 225 static const struct spinand_manufacturer_ops hyf_spinand_manuf_ops = { 226 .detect = hyf_spinand_detect, 227 }; 228 229 const struct spinand_manufacturer hyf_spinand_manufacturer = { 230 .id = SPINAND_MFR_HYF, 231 .name = "hyf", 232 .ops = &hyf_spinand_manuf_ops, 233 }; 234