summaryrefslogtreecommitdiff
path: root/drivers/mtd/spi/spansion.c
blob: b9a36c2f06cbe8f9c9a3eac6b87d3034ce646c3d (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 (C) 2009 Freescale Semiconductor, Inc.
 *
 * Author: Mingkai Hu (Mingkai.hu@freescale.com)
 * Based on stmicro.c by Wolfgang Denk (wd@denx.de),
 * TsiChung Liew (Tsi-Chung.Liew@freescale.com),
 * and  Jason McMullan (mcmullan@netapp.com)
 *
 * SPDX-License-Identifier:	GPL-2.0+ 
 */

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

#include "spi_flash_internal.h"

struct spansion_spi_flash_params {
	u16 idcode1;
	u16 idcode2;
	u16 pages_per_sector;
	u16 nr_sectors;
	const char *name;
};

static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
	{
		.idcode1 = 0x0213,
		.idcode2 = 0,
		.pages_per_sector = 256,
		.nr_sectors = 16,
		.name = "S25FL008A",
	},
	{
		.idcode1 = 0x0214,
		.idcode2 = 0,
		.pages_per_sector = 256,
		.nr_sectors = 32,
		.name = "S25FL016A",
	},
	{
		.idcode1 = 0x0215,
		.idcode2 = 0,
		.pages_per_sector = 256,
		.nr_sectors = 64,
		.name = "S25FL032A",
	},
	{
		.idcode1 = 0x0216,
		.idcode2 = 0,
		.pages_per_sector = 256,
		.nr_sectors = 128,
		.name = "S25FL064A",
	},
	{
		.idcode1 = 0x2018,
		.idcode2 = 0x0301,
		.pages_per_sector = 256,
		.nr_sectors = 256,
		.name = "S25FL128P_64K",
	},
	{
		.idcode1 = 0x2018,
		.idcode2 = 0x0300,
		.pages_per_sector = 1024,
		.nr_sectors = 64,
		.name = "S25FL128P_256K",
	},
	{
		.idcode1 = 0x0215,
		.idcode2 = 0x4d00,
		.pages_per_sector = 256,
		.nr_sectors = 64,
		.name = "S25FL032P",
	},
	{
		.idcode1 = 0x0216,
		.idcode2 = 0x4d00,
		.pages_per_sector = 256,
		.nr_sectors = 128,
		.name = "S25FL064P",
	},
	{
		.idcode1 = 0x2018,
		.idcode2 = 0x4d01,
		.pages_per_sector = 256,
		.nr_sectors = 256,
		.name = "S25FL129P_64K/S25FL128S_64K",
	},
	{
		.idcode1 = 0x0219,
		.idcode2 = 0x4d01,
		.pages_per_sector = 256,
		.nr_sectors = 512,
		.name = "S25FL256S_64K",
	},
	{
		.idcode1 = 0x0220,
		.idcode2 = 0x4d01,
		.pages_per_sector = 256,
		.nr_sectors = 1024,
		.name = "S25FL512S_64K",
	},
};

struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
{
	const struct spansion_spi_flash_params *params;
	struct spi_flash *flash;
	unsigned int i;
	unsigned short jedec, ext_jedec;

	jedec = idcode[1] << 8 | idcode[2];
	ext_jedec = idcode[3] << 8 | idcode[4];

	for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
		params = &spansion_spi_flash_table[i];
		if (params->idcode1 == jedec) {
			if (params->idcode2 == ext_jedec)
				break;
		}
	}

	if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
		debug("SF: Unsupported SPANSION ID %04x %04x\n",
		      jedec, ext_jedec);
		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 = 256 * params->pages_per_sector;
	flash->size = flash->sector_size * params->nr_sectors;

	return flash;
}