sf: inline data constants
[oweals/u-boot.git] / drivers / mtd / spi / eon.c
1 /*
2  * (C) Copyright 2010, ucRobotics Inc.
3  * Author: Chong Huang <chuang@ucrobotics.com>
4  * Licensed under the GPL-2 or later.
5  */
6
7 #include <common.h>
8 #include <malloc.h>
9 #include <spi_flash.h>
10
11 #include "spi_flash_internal.h"
12
13 /* EN25Q128-specific commands */
14 #define CMD_EN25Q128_SE         0x20    /* Sector Erase */
15 #define CMD_EN25Q128_BE         0xd8    /* Block Erase */
16
17 struct eon_spi_flash_params {
18         u8 idcode1;
19         u16 nr_sectors;
20         const char *name;
21 };
22
23 static const struct eon_spi_flash_params eon_spi_flash_table[] = {
24         {
25                 .idcode1 = 0x16,
26                 .nr_sectors = 1024,
27                 .name = "EN25Q32B",
28         },
29         {
30                 .idcode1 = 0x18,
31                 .nr_sectors = 4096,
32                 .name = "EN25Q128",
33         },
34         {
35                 .idcode1 = 0x16,
36                 .nr_sectors = 1024,
37                 .name = "EN25Q32B",
38         },
39 };
40
41 static int eon_erase(struct spi_flash *flash, u32 offset, size_t len)
42 {
43         return spi_flash_cmd_erase(flash, CMD_EN25Q128_BE, offset, len);
44 }
45
46 struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
47 {
48         const struct eon_spi_flash_params *params;
49         struct spi_flash *flash;
50         unsigned int i;
51
52         for (i = 0; i < ARRAY_SIZE(eon_spi_flash_table); ++i) {
53                 params = &eon_spi_flash_table[i];
54                 if (params->idcode1 == idcode[2])
55                         break;
56         }
57
58         if (i == ARRAY_SIZE(eon_spi_flash_table)) {
59                 debug("SF: Unsupported EON ID %02x\n", idcode[1]);
60                 return NULL;
61         }
62
63         flash = malloc(sizeof(*flash));
64         if (!flash) {
65                 debug("SF: Failed to allocate memory\n");
66                 return NULL;
67         }
68
69         flash->spi = spi;
70         flash->name = params->name;
71
72         flash->write = spi_flash_cmd_write_multi;
73         flash->erase = eon_erase;
74         flash->read = spi_flash_cmd_read_fast;
75         flash->page_size = 256;
76         flash->sector_size = 256 * 16 * 16;
77         flash->size = 256 * 16
78             * params->nr_sectors;
79
80         return flash;
81 }