1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (C) 2005, Intec Automation Inc.
4 * Copyright (C) 2014, Freescale Semiconductor, Inc.
5 */
6
7#include <linux/mtd/spi-nor.h>
8
9#include "core.h"
10
11static int
12gd25q256_post_bfpt(struct spi_nor *nor,
13 const struct sfdp_parameter_header *bfpt_header,
14 const struct sfdp_bfpt *bfpt)
15{
16 /*
17 * GD25Q256C supports the first version of JESD216 which does not define
18 * the Quad Enable methods. Overwrite the default Quad Enable method.
19 *
20 * GD25Q256 GENERATION | SFDP MAJOR VERSION | SFDP MINOR VERSION
21 * GD25Q256C | SFDP_JESD216_MAJOR | SFDP_JESD216_MINOR
22 * GD25Q256D | SFDP_JESD216_MAJOR | SFDP_JESD216B_MINOR
23 * GD25Q256E | SFDP_JESD216_MAJOR | SFDP_JESD216B_MINOR
24 */
25 if (bfpt_header->major == SFDP_JESD216_MAJOR &&
26 bfpt_header->minor == SFDP_JESD216_MINOR)
27 nor->params->quad_enable = spi_nor_sr1_bit6_quad_enable;
28
29 return 0;
30}
31
32static const struct spi_nor_fixups gd25q256_fixups = {
33 .post_bfpt = gd25q256_post_bfpt,
34};
35
36static const struct flash_info gigadevice_nor_parts[] = {
37 {
38 .id = SNOR_ID(0xc8, 0x40, 0x15),
39 .name = "gd25q16",
40 .size = SZ_2M,
41 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
42 .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
43 }, {
44 .id = SNOR_ID(0xc8, 0x40, 0x16),
45 .name = "gd25q32",
46 .size = SZ_4M,
47 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
48 .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
49 }, {
50 .id = SNOR_ID(0xc8, 0x40, 0x17),
51 .name = "gd25q64",
52 .size = SZ_8M,
53 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
54 .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
55 }, {
56 .id = SNOR_ID(0xc8, 0x40, 0x18),
57 .name = "gd25q128",
58 .size = SZ_16M,
59 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
60 .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
61 }, {
62 .id = SNOR_ID(0xc8, 0x40, 0x19),
63 .name = "gd25q256",
64 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_TB_SR_BIT6,
65 .fixups = &gd25q256_fixups,
66 .fixup_flags = SPI_NOR_4B_OPCODES,
67 }, {
68 .id = SNOR_ID(0xc8, 0x60, 0x16),
69 .name = "gd25lq32",
70 .size = SZ_4M,
71 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
72 .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
73 }, {
74 .id = SNOR_ID(0xc8, 0x60, 0x17),
75 .name = "gd25lq64c",
76 .size = SZ_8M,
77 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
78 .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
79 }, {
80 .id = SNOR_ID(0xc8, 0x60, 0x18),
81 .name = "gd25lq128d",
82 .size = SZ_16M,
83 .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
84 .no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
85 },
86};
87
88const struct spi_nor_manufacturer spi_nor_gigadevice = {
89 .name = "gigadevice",
90 .parts = gigadevice_nor_parts,
91 .nparts = ARRAY_SIZE(gigadevice_nor_parts),
92};
93

source code of linux/drivers/mtd/spi-nor/gigadevice.c