diff options
Diffstat (limited to 'kernel/drivers/mtd/devices/serial_flash_cmds.h')
-rw-r--r-- | kernel/drivers/mtd/devices/serial_flash_cmds.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/kernel/drivers/mtd/devices/serial_flash_cmds.h b/kernel/drivers/mtd/devices/serial_flash_cmds.h new file mode 100644 index 000000000..f59a12529 --- /dev/null +++ b/kernel/drivers/mtd/devices/serial_flash_cmds.h @@ -0,0 +1,61 @@ +/* + * Generic/SFDP Flash Commands and Device Capabilities + * + * Copyright (C) 2013 Lee Jones <lee.jones@lianro.org> + * + * This code is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef _MTD_SERIAL_FLASH_CMDS_H +#define _MTD_SERIAL_FLASH_CMDS_H + +/* Generic Flash Commands/OPCODEs */ +#define SPINOR_OP_RDSR2 0x35 +#define SPINOR_OP_WRVCR 0x81 +#define SPINOR_OP_RDVCR 0x85 + +/* JEDEC Standard - Serial Flash Discoverable Parmeters (SFDP) Commands */ +#define SPINOR_OP_READ_1_2_2 0xbb /* DUAL I/O READ */ +#define SPINOR_OP_READ_1_4_4 0xeb /* QUAD I/O READ */ + +#define SPINOR_OP_WRITE 0x02 /* PAGE PROGRAM */ +#define SPINOR_OP_WRITE_1_1_2 0xa2 /* DUAL INPUT PROGRAM */ +#define SPINOR_OP_WRITE_1_2_2 0xd2 /* DUAL INPUT EXT PROGRAM */ +#define SPINOR_OP_WRITE_1_1_4 0x32 /* QUAD INPUT PROGRAM */ +#define SPINOR_OP_WRITE_1_4_4 0x12 /* QUAD INPUT EXT PROGRAM */ + +/* READ commands with 32-bit addressing */ +#define SPINOR_OP_READ4_1_2_2 0xbc +#define SPINOR_OP_READ4_1_4_4 0xec + +/* Configuration flags */ +#define FLASH_FLAG_SINGLE 0x000000ff +#define FLASH_FLAG_READ_WRITE 0x00000001 +#define FLASH_FLAG_READ_FAST 0x00000002 +#define FLASH_FLAG_SE_4K 0x00000004 +#define FLASH_FLAG_SE_32K 0x00000008 +#define FLASH_FLAG_CE 0x00000010 +#define FLASH_FLAG_32BIT_ADDR 0x00000020 +#define FLASH_FLAG_RESET 0x00000040 +#define FLASH_FLAG_DYB_LOCKING 0x00000080 + +#define FLASH_FLAG_DUAL 0x0000ff00 +#define FLASH_FLAG_READ_1_1_2 0x00000100 +#define FLASH_FLAG_READ_1_2_2 0x00000200 +#define FLASH_FLAG_READ_2_2_2 0x00000400 +#define FLASH_FLAG_WRITE_1_1_2 0x00001000 +#define FLASH_FLAG_WRITE_1_2_2 0x00002000 +#define FLASH_FLAG_WRITE_2_2_2 0x00004000 + +#define FLASH_FLAG_QUAD 0x00ff0000 +#define FLASH_FLAG_READ_1_1_4 0x00010000 +#define FLASH_FLAG_READ_1_4_4 0x00020000 +#define FLASH_FLAG_READ_4_4_4 0x00040000 +#define FLASH_FLAG_WRITE_1_1_4 0x00100000 +#define FLASH_FLAG_WRITE_1_4_4 0x00200000 +#define FLASH_FLAG_WRITE_4_4_4 0x00400000 + +#endif /* _MTD_SERIAL_FLASH_CMDS_H */ |