summaryrefslogtreecommitdiff
path: root/drivers/mtd/spi/winbond.c
blob: b31911a4055b14cc984f7b314a96c94c9219894a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/*
 * Copyright 2008, Network Appliance Inc.
 * Author: Jason McMullan <mcmullan <at> netapp.com>
 * Licensed under the GPL-2 or later.
 */

#include <common.h>
#include <malloc.h>
#include <spi_flash.h>

#include "spi_flash_internal.h"

struct winbond_spi_flash_params {
	uint16_t	id;
	uint16_t	nr_blocks;
	const char	*name;
};

static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
	{
		.id			= 0x2014,
		.nr_blocks		= 16,
		.name			= "W25P80",
	},
	{
		.id			= 0x2015,
		.nr_blocks		= 32,
		.name			= "W25P16",
	},
	{
		.id			= 0x2016,
		.nr_blocks		= 64,
		.name			= "W25P32",
	},
	{
		.id			= 0x3013,
		.nr_blocks		= 8,
		.name			= "W25X40",
	},
	{
		.id			= 0x3015,
		.nr_blocks		= 32,
		.name			= "W25X16",
	},
	{
		.id			= 0x3016,
		.nr_blocks		= 64,
		.name			= "W25X32",
	},
	{
		.id			= 0x3017,
		.nr_blocks		= 128,
		.name			= "W25X64",
	},
	{
		.id			= 0x4014,
		.nr_blocks		= 16,
		.name			= "W25Q80BL/W25Q80BV",
	},
	{
		.id			= 0x4015,
		.nr_blocks		= 32,
		.name			= "W25Q16CL/W25Q16DV",
	},
	{
		.id			= 0x4016,
		.nr_blocks		= 64,
		.name			= "W25Q32BV/W25Q32FV_SPI",
	},
	{
		.id			= 0x4017,
		.nr_blocks		= 128,
		.name			= "W25Q64CV/W25Q64FV_SPI",
	},
	{
		.id			= 0x4018,
		.nr_blocks		= 256,
		.name			= "W25Q128BV/W25Q128FV_SPI",
	},
	{
		.id			= 0x4019,
		.nr_blocks		= 512,
		.name			= "W25Q256",
	},
	{
		.id			= 0x5014,
		.nr_blocks		= 16,
		.name			= "W25Q80BW",
	},
	{
		.id			= 0x6015,
		.nr_blocks		= 32,
		.name			= "W25Q16DW",
	},
	{
		.id			= 0x6016,
		.nr_blocks		= 64,
		.name			= "W25Q32DW/W25Q32FV_QPI",
	},
	{
		.id			= 0x6017,
		.nr_blocks		= 128,
		.name			= "W25Q64DW/W25Q64FV_QPI",
	},
	{
		.id			= 0x6018,
		.nr_blocks		= 256,
		.name			= "W25Q128FW/W25Q128FV_QPI",
	},
};

struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
{
	const struct winbond_spi_flash_params *params;
	struct spi_flash *flash;
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(winbond_spi_flash_table); i++) {
		params = &winbond_spi_flash_table[i];
		if (params->id == ((idcode[1] << 8) | idcode[2]))
			break;
	}

	if (i == ARRAY_SIZE(winbond_spi_flash_table)) {
		debug("SF: Unsupported Winbond ID %02x%02x\n",
		      idcode[1], idcode[2]);
		return NULL;
	}

	flash = spi_flash_alloc_base(spi, params->name);
	if (!flash) {
		debug("SF: Failed to allocate memory\n");
		return NULL;
	}

	flash->page_size = 256;
	flash->sector_size = (idcode[1] == 0x20) ? 65536 : 4096;
	flash->size = 4096 * 16 * params->nr_blocks;

	return flash;
}