1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2021 Rockchip Electronics Co., Ltd
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Authors:
6*4882a593Smuzhiyun * Dingqiang Lin <jon.lin@rock-chips.com>
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/device.h>
10*4882a593Smuzhiyun #include <linux/kernel.h>
11*4882a593Smuzhiyun #include <linux/mtd/spinand.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #define SPINAND_MFR_SILICONGO 0xEA
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun static SPINAND_OP_VARIANTS(read_cache_variants,
16*4882a593Smuzhiyun SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
17*4882a593Smuzhiyun SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
18*4882a593Smuzhiyun SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
19*4882a593Smuzhiyun SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
20*4882a593Smuzhiyun SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
21*4882a593Smuzhiyun SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun static SPINAND_OP_VARIANTS(write_cache_variants,
24*4882a593Smuzhiyun SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
25*4882a593Smuzhiyun SPINAND_PROG_LOAD(true, 0, NULL, 0));
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun static SPINAND_OP_VARIANTS(update_cache_variants,
28*4882a593Smuzhiyun SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
29*4882a593Smuzhiyun SPINAND_PROG_LOAD(false, 0, NULL, 0));
30*4882a593Smuzhiyun
sgm7000i_ooblayout_ecc(struct mtd_info * mtd,int section,struct mtd_oob_region * region)31*4882a593Smuzhiyun static int sgm7000i_ooblayout_ecc(struct mtd_info *mtd, int section,
32*4882a593Smuzhiyun struct mtd_oob_region *region)
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun return -ERANGE;
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
sgm7000i_ooblayout_free(struct mtd_info * mtd,int section,struct mtd_oob_region * region)37*4882a593Smuzhiyun static int sgm7000i_ooblayout_free(struct mtd_info *mtd, int section,
38*4882a593Smuzhiyun struct mtd_oob_region *region)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun if (section)
41*4882a593Smuzhiyun return -ERANGE;
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun region->offset = 2;
44*4882a593Smuzhiyun region->length = mtd->oobsize - 2;
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun return 0;
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun static const struct mtd_ooblayout_ops sgm7000i_ooblayout = {
50*4882a593Smuzhiyun .ecc = sgm7000i_ooblayout_ecc,
51*4882a593Smuzhiyun .free = sgm7000i_ooblayout_free,
52*4882a593Smuzhiyun };
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun static const struct spinand_info silicongo_spinand_table[] = {
55*4882a593Smuzhiyun SPINAND_INFO("SGM7000I-S24W1GH",
56*4882a593Smuzhiyun SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xC1),
57*4882a593Smuzhiyun NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
58*4882a593Smuzhiyun NAND_ECCREQ(4, 512),
59*4882a593Smuzhiyun SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
60*4882a593Smuzhiyun &write_cache_variants,
61*4882a593Smuzhiyun &update_cache_variants),
62*4882a593Smuzhiyun SPINAND_HAS_QE_BIT,
63*4882a593Smuzhiyun SPINAND_ECCINFO(&sgm7000i_ooblayout, NULL)),
64*4882a593Smuzhiyun };
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun static const struct spinand_manufacturer_ops silicongo_spinand_manuf_ops = {
67*4882a593Smuzhiyun };
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun const struct spinand_manufacturer silicongo_spinand_manufacturer = {
70*4882a593Smuzhiyun .id = SPINAND_MFR_SILICONGO,
71*4882a593Smuzhiyun .name = "silicongo",
72*4882a593Smuzhiyun .chips = silicongo_spinand_table,
73*4882a593Smuzhiyun .nchips = ARRAY_SIZE(silicongo_spinand_table),
74*4882a593Smuzhiyun .ops = &silicongo_spinand_manuf_ops,
75*4882a593Smuzhiyun };
76