1#ifndef __BCM47XXSFLASH_H
2#define __BCM47XXSFLASH_H
3
4#include <linux/mtd/mtd.h>
5
6/* Used for ST flashes only. */
7#define OPCODE_ST_WREN		0x0006		/* Write Enable */
8#define OPCODE_ST_WRDIS		0x0004		/* Write Disable */
9#define OPCODE_ST_RDSR		0x0105		/* Read Status Register */
10#define OPCODE_ST_WRSR		0x0101		/* Write Status Register */
11#define OPCODE_ST_READ		0x0303		/* Read Data Bytes */
12#define OPCODE_ST_PP		0x0302		/* Page Program */
13#define OPCODE_ST_SE		0x02d8		/* Sector Erase */
14#define OPCODE_ST_BE		0x00c7		/* Bulk Erase */
15#define OPCODE_ST_DP		0x00b9		/* Deep Power-down */
16#define OPCODE_ST_RES		0x03ab		/* Read Electronic Signature */
17#define OPCODE_ST_CSA		0x1000		/* Keep chip select asserted */
18#define OPCODE_ST_SSE		0x0220		/* Sub-sector Erase */
19
20/* Used for Atmel flashes only. */
21#define OPCODE_AT_READ				0x07e8
22#define OPCODE_AT_PAGE_READ			0x07d2
23#define OPCODE_AT_STATUS			0x01d7
24#define OPCODE_AT_BUF1_WRITE			0x0384
25#define OPCODE_AT_BUF2_WRITE			0x0387
26#define OPCODE_AT_BUF1_ERASE_PROGRAM		0x0283
27#define OPCODE_AT_BUF2_ERASE_PROGRAM		0x0286
28#define OPCODE_AT_BUF1_PROGRAM			0x0288
29#define OPCODE_AT_BUF2_PROGRAM			0x0289
30#define OPCODE_AT_PAGE_ERASE			0x0281
31#define OPCODE_AT_BLOCK_ERASE			0x0250
32#define OPCODE_AT_BUF1_WRITE_ERASE_PROGRAM	0x0382
33#define OPCODE_AT_BUF2_WRITE_ERASE_PROGRAM	0x0385
34#define OPCODE_AT_BUF1_LOAD			0x0253
35#define OPCODE_AT_BUF2_LOAD			0x0255
36#define OPCODE_AT_BUF1_COMPARE			0x0260
37#define OPCODE_AT_BUF2_COMPARE			0x0261
38#define OPCODE_AT_BUF1_REPROGRAM		0x0258
39#define OPCODE_AT_BUF2_REPROGRAM		0x0259
40
41/* Status register bits for ST flashes */
42#define SR_ST_WIP		0x01		/* Write In Progress */
43#define SR_ST_WEL		0x02		/* Write Enable Latch */
44#define SR_ST_BP_MASK		0x1c		/* Block Protect */
45#define SR_ST_BP_SHIFT		2
46#define SR_ST_SRWD		0x80		/* Status Register Write Disable */
47
48/* Status register bits for Atmel flashes */
49#define SR_AT_READY		0x80
50#define SR_AT_MISMATCH		0x40
51#define SR_AT_ID_MASK		0x38
52#define SR_AT_ID_SHIFT		3
53
54struct bcma_drv_cc;
55
56enum bcm47xxsflash_type {
57	BCM47XXSFLASH_TYPE_ATMEL,
58	BCM47XXSFLASH_TYPE_ST,
59};
60
61struct bcm47xxsflash {
62	struct bcma_drv_cc *bcma_cc;
63	int (*cc_read)(struct bcm47xxsflash *b47s, u16 offset);
64	void (*cc_write)(struct bcm47xxsflash *b47s, u16 offset, u32 value);
65
66	enum bcm47xxsflash_type type;
67
68	u32 window;
69	u32 blocksize;
70	u16 numblocks;
71	u32 size;
72
73	struct mtd_info mtd;
74};
75
76#endif /* BCM47XXSFLASH */
77