1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT) 2 /* 3 * Copyright (c) 2021 Rockchip Electronics Co., Ltd. 4 */ 5 6 #ifndef __UBOOT__ 7 #include <linux/device.h> 8 #include <linux/kernel.h> 9 #endif 10 #include <linux/mtd/spinand.h> 11 12 #define SPINAND_MFR_ETRON 0xD5 13 14 static SPINAND_OP_VARIANTS(read_cache_variants, 15 SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), 16 SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), 17 SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), 18 SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), 19 SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), 20 SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); 21 22 static SPINAND_OP_VARIANTS(write_cache_variants, 23 SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), 24 SPINAND_PROG_LOAD(true, 0, NULL, 0)); 25 26 static SPINAND_OP_VARIANTS(update_cache_variants, 27 SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), 28 SPINAND_PROG_LOAD(false, 0, NULL, 0)); 29 30 static int em73c044vcf_oh_ooblayout_ecc(struct mtd_info *mtd, int section, 31 struct mtd_oob_region *region) 32 { 33 if (section > 3) 34 return -ERANGE; 35 36 region->offset = (16 * section) + 8; 37 region->length = 8; 38 39 return 0; 40 } 41 42 static int em73c044vcf_oh_ooblayout_free(struct mtd_info *mtd, int section, 43 struct mtd_oob_region *region) 44 { 45 if (section > 3) 46 return -ERANGE; 47 48 region->offset = (16 * section) + 2; 49 region->length = 6; 50 51 return 0; 52 } 53 54 static const struct mtd_ooblayout_ops em73c044vcf_oh_ooblayout = { 55 .ecc = em73c044vcf_oh_ooblayout_ecc, 56 .rfree = em73c044vcf_oh_ooblayout_free, 57 }; 58 59 static int em73c044vcf_oh_ecc_get_status(struct spinand_device *spinand, 60 u8 status) 61 { 62 struct nand_device *nand = spinand_to_nand(spinand); 63 64 switch (status & STATUS_ECC_MASK) { 65 case STATUS_ECC_NO_BITFLIPS: 66 return 0; 67 68 case STATUS_ECC_UNCOR_ERROR: 69 return -EBADMSG; 70 71 case STATUS_ECC_HAS_BITFLIPS: 72 return 1; 73 74 default: 75 return nand->eccreq.strength; 76 } 77 78 return -EINVAL; 79 } 80 81 static int em73e044vce_ooblayout_ecc(struct mtd_info *mtd, int section, 82 struct mtd_oob_region *region) 83 { 84 if (section) 85 return -ERANGE; 86 87 region->offset = mtd->oobsize / 2; 88 region->length = mtd->oobsize / 2; 89 90 return 0; 91 } 92 93 static int em73e044vce_ooblayout_free(struct mtd_info *mtd, int section, 94 struct mtd_oob_region *region) 95 { 96 if (section) 97 return -ERANGE; 98 99 region->offset = 2; 100 region->length = mtd->oobsize / 2 - 2; 101 102 return 0; 103 } 104 105 static const struct mtd_ooblayout_ops em73e044vce_ooblayout = { 106 .ecc = em73e044vce_ooblayout_ecc, 107 .rfree = em73e044vce_ooblayout_free, 108 }; 109 110 static int em73e044vce_oh_ooblayout_ecc(struct mtd_info *mtd, int section, 111 struct mtd_oob_region *region) 112 { 113 if (section > 3) 114 return -ERANGE; 115 116 region->offset = (32 * section) + 18; 117 region->length = 14; 118 119 return 0; 120 } 121 122 static int em73e044vce_oh_ooblayout_free(struct mtd_info *mtd, int section, 123 struct mtd_oob_region *region) 124 { 125 if (section > 3) 126 return -ERANGE; 127 128 region->offset = (32 * section) + 2; 129 region->length = 16; 130 131 return 0; 132 } 133 134 static const struct mtd_ooblayout_ops em73e044vce_oh_ooblayout = { 135 .ecc = em73e044vce_oh_ooblayout_ecc, 136 .rfree = em73e044vce_oh_ooblayout_free, 137 }; 138 139 static const struct spinand_info etron_spinand_table[] = { 140 SPINAND_INFO("EM73C044VCF-0H", 141 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x36), 142 NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1), 143 NAND_ECCREQ(4, 512), 144 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 145 &write_cache_variants, 146 &update_cache_variants), 147 SPINAND_HAS_QE_BIT, 148 SPINAND_ECCINFO(&em73c044vcf_oh_ooblayout, 149 em73c044vcf_oh_ecc_get_status)), 150 SPINAND_INFO("EM73E044VCE-H", 151 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x3B), 152 NAND_MEMORG(1, 2048, 128, 64, 4096, 1, 1, 1), 153 NAND_ECCREQ(8, 512), 154 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 155 &write_cache_variants, 156 &update_cache_variants), 157 SPINAND_HAS_QE_BIT, 158 SPINAND_ECCINFO(&em73e044vce_ooblayout, em73c044vcf_oh_ecc_get_status)), 159 SPINAND_INFO("EM73E044VCE-OH", 160 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x40), 161 NAND_MEMORG(1, 2048, 128, 64, 4096, 1, 1, 1), 162 NAND_ECCREQ(8, 512), 163 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 164 &write_cache_variants, 165 &update_cache_variants), 166 SPINAND_HAS_QE_BIT, 167 SPINAND_ECCINFO(&em73e044vce_oh_ooblayout, em73c044vcf_oh_ecc_get_status)), 168 }; 169 170 static const struct spinand_manufacturer_ops etron_spinand_manuf_ops = { 171 }; 172 173 const struct spinand_manufacturer etron_spinand_manufacturer = { 174 .id = SPINAND_MFR_ETRON, 175 .name = "Etron", 176 .chips = etron_spinand_table, 177 .nchips = ARRAY_SIZE(etron_spinand_table), 178 .ops = &etron_spinand_manuf_ops, 179 }; 180