1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __BCM47XXSFLASH_H 3#define __BCM47XXSFLASH_H 4 5#include <linux/mtd/mtd.h> 6 7#define BCM47XXSFLASH_WINDOW_SZ SZ_16M 8 9/* Used for ST flashes only. */ 10#define OPCODE_ST_WREN 0x0006 /* Write Enable */ 11#define OPCODE_ST_WRDIS 0x0004 /* Write Disable */ 12#define OPCODE_ST_RDSR 0x0105 /* Read Status Register */ 13#define OPCODE_ST_WRSR 0x0101 /* Write Status Register */ 14#define OPCODE_ST_READ 0x0303 /* Read Data Bytes */ 15#define OPCODE_ST_PP 0x0302 /* Page Program */ 16#define OPCODE_ST_SE 0x02d8 /* Sector Erase */ 17#define OPCODE_ST_BE 0x00c7 /* Bulk Erase */ 18#define OPCODE_ST_DP 0x00b9 /* Deep Power-down */ 19#define OPCODE_ST_RES 0x03ab /* Read Electronic Signature */ 20#define OPCODE_ST_CSA 0x1000 /* Keep chip select asserted */ 21#define OPCODE_ST_SSE 0x0220 /* Sub-sector Erase */ 22#define OPCODE_ST_READ4B 0x6313 /* Read Data Bytes in 4Byte addressing mode */ 23 24/* Used for Atmel flashes only. */ 25#define OPCODE_AT_READ 0x07e8 26#define OPCODE_AT_PAGE_READ 0x07d2 27#define OPCODE_AT_STATUS 0x01d7 28#define OPCODE_AT_BUF1_WRITE 0x0384 29#define OPCODE_AT_BUF2_WRITE 0x0387 30#define OPCODE_AT_BUF1_ERASE_PROGRAM 0x0283 31#define OPCODE_AT_BUF2_ERASE_PROGRAM 0x0286 32#define OPCODE_AT_BUF1_PROGRAM 0x0288 33#define OPCODE_AT_BUF2_PROGRAM 0x0289 34#define OPCODE_AT_PAGE_ERASE 0x0281 35#define OPCODE_AT_BLOCK_ERASE 0x0250 36#define OPCODE_AT_BUF1_WRITE_ERASE_PROGRAM 0x0382 37#define OPCODE_AT_BUF2_WRITE_ERASE_PROGRAM 0x0385 38#define OPCODE_AT_BUF1_LOAD 0x0253 39#define OPCODE_AT_BUF2_LOAD 0x0255 40#define OPCODE_AT_BUF1_COMPARE 0x0260 41#define OPCODE_AT_BUF2_COMPARE 0x0261 42#define OPCODE_AT_BUF1_REPROGRAM 0x0258 43#define OPCODE_AT_BUF2_REPROGRAM 0x0259 44 45/* Status register bits for ST flashes */ 46#define SR_ST_WIP 0x01 /* Write In Progress */ 47#define SR_ST_WEL 0x02 /* Write Enable Latch */ 48#define SR_ST_BP_MASK 0x1c /* Block Protect */ 49#define SR_ST_BP_SHIFT 2 50#define SR_ST_SRWD 0x80 /* Status Register Write Disable */ 51 52/* Status register bits for Atmel flashes */ 53#define SR_AT_READY 0x80 54#define SR_AT_MISMATCH 0x40 55#define SR_AT_ID_MASK 0x38 56#define SR_AT_ID_SHIFT 3 57 58struct bcma_drv_cc; 59 60enum bcm47xxsflash_type { 61 BCM47XXSFLASH_TYPE_ATMEL, 62 BCM47XXSFLASH_TYPE_ST, 63}; 64 65struct bcm47xxsflash { 66 struct bcma_drv_cc *bcma_cc; 67 int (*cc_read)(struct bcm47xxsflash *b47s, u16 offset); 68 void (*cc_write)(struct bcm47xxsflash *b47s, u16 offset, u32 value); 69 70 enum bcm47xxsflash_type type; 71 72 void __iomem *window; 73 74 u32 blocksize; 75 u16 numblocks; 76 u32 size; 77 78 struct mtd_info mtd; 79}; 80 81#endif /* BCM47XXSFLASH */ 82