1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2020 Grandstream Networks, Inc 4 * 5 * Authors: 6 * Carl <xjxia@grandstream.cn> 7 */ 8 9 #ifndef __UBOOT__ 10 #include <linux/device.h> 11 #include <linux/kernel.h> 12 #endif 13 #include <linux/mtd/spinand.h> 14 15 #define SPINAND_MFR_ESMT 0xC8 16 17 static SPINAND_OP_VARIANTS(read_cache_variants, 18 SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0), 19 SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0), 20 SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0), 21 SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0), 22 SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0), 23 SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0)); 24 25 static SPINAND_OP_VARIANTS(write_cache_variants, 26 SPINAND_PROG_LOAD_X4(true, 0, NULL, 0), 27 SPINAND_PROG_LOAD(true, 0, NULL, 0)); 28 29 static SPINAND_OP_VARIANTS(update_cache_variants, 30 SPINAND_PROG_LOAD_X4(false, 0, NULL, 0), 31 SPINAND_PROG_LOAD(false, 0, NULL, 0)); 32 33 static int f50lxx41x_ooblayout_ecc(struct mtd_info *mtd, int section, 34 struct mtd_oob_region *region) 35 { 36 if (section > 3) 37 return -ERANGE; 38 39 region->offset = (16 * section) + 8; 40 region->length = 8; 41 42 return 0; 43 } 44 45 static int f50lxx41x_ooblayout_free(struct mtd_info *mtd, int section, 46 struct mtd_oob_region *region) 47 { 48 if (section > 3) 49 return -ERANGE; 50 51 region->offset = (16 * section) + 2; 52 region->length = 6; 53 54 return 0; 55 } 56 57 static const struct mtd_ooblayout_ops f50lxx41x_ooblayout = { 58 .ecc = f50lxx41x_ooblayout_ecc, 59 .rfree = f50lxx41x_ooblayout_free, 60 }; 61 62 static const struct spinand_info esmt_spinand_table[] = { 63 SPINAND_INFO("F50L1G41LB", 64 SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x01), 65 NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1), 66 NAND_ECCREQ(1, 512), 67 SPINAND_INFO_OP_VARIANTS(&read_cache_variants, 68 &write_cache_variants, 69 &update_cache_variants), 70 0, 71 SPINAND_ECCINFO(&f50lxx41x_ooblayout, NULL)), 72 }; 73 74 static const struct spinand_manufacturer_ops esmt_spinand_manuf_ops = { 75 }; 76 77 const struct spinand_manufacturer esmt_spinand_manufacturer = { 78 .id = SPINAND_MFR_ESMT, 79 .name = "esmt", 80 .chips = esmt_spinand_table, 81 .nchips = ARRAY_SIZE(esmt_spinand_table), 82 .ops = &esmt_spinand_manuf_ops, 83 }; 84