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Diffstat (limited to 'cfe/cfe/include/dev_flash.h')
| -rw-r--r-- | cfe/cfe/include/dev_flash.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/cfe/cfe/include/dev_flash.h b/cfe/cfe/include/dev_flash.h new file mode 100644 index 0000000..8cbce48 --- /dev/null +++ b/cfe/cfe/include/dev_flash.h @@ -0,0 +1,168 @@ +/* ********************************************************************* + * Broadcom Common Firmware Environment (CFE) + * + * Flash memory definitions File: dev_flash.h + * + * Stuff we use when manipulating flash memory devices. + * + * Author: Mitch Lichtenberg (mpl@broadcom.com) + * + ********************************************************************* + * + * Copyright 2000,2001,2002,2003 + * Broadcom Corporation. All rights reserved. + * + * This software is furnished under license and may be used and + * copied only in accordance with the following terms and + * conditions. Subject to these conditions, you may download, + * copy, install, use, modify and distribute modified or unmodified + * copies of this software in source and/or binary form. No title + * or ownership is transferred hereby. + * + * 1) Any source code used, modified or distributed must reproduce + * and retain this copyright notice and list of conditions + * as they appear in the source file. + * + * 2) No right is granted to use any trade name, trademark, or + * logo of Broadcom Corporation. The "Broadcom Corporation" + * name may not be used to endorse or promote products derived + * from this software without the prior written permission of + * Broadcom Corporation. + * + * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED + * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR + * PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT + * SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN + * PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + * TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + ********************************************************************* */ + +/* + * AMD Flash commands and magic offsets + */ + +#define AMD_FLASH_MAGIC_ADDR_1 0x555 /* AAA for 16-bit devices in 8-bit mode */ +#define AMD_FLASH_MAGIC_ADDR_2 0x2AA /* 554 for 16-bit devices in 8-bit mode */ + +#define AMD_FLASH_RESET 0xF0 +#define AMD_FLASH_MAGIC_1 0xAA +#define AMD_FLASH_MAGIC_2 0x55 +#define AMD_FLASH_AUTOSEL 0x90 +#define AMD_FLASH_PROGRAM 0xA0 +#define AMD_FLASH_UNLOCK_BYPASS 0x20 +#define AMD_FLASH_ERASE_3 0x80 +#define AMD_FLASH_ERASE_4 0xAA +#define AMD_FLASH_ERASE_5 0x55 +#define AMD_FLASH_ERASE_ALL_6 0x10 +#define AMD_FLASH_ERASE_SEC_6 0x30 + +/* + * INTEL Flash commands and magic offsets + */ + +#define INTEL_FLASH_READ_MODE 0xFF +#define INTEL_FLASH_ERASE_BLOCK 0x20 +#define INTEL_FLASH_ERASE_CONFIRM 0xD0 +#define INTEL_FLASH_PROGRAM 0x40 + +/* INTEL Flash commands for 16-bit mode */ +#define INTEL_FLASH_16BIT_READ_MODE 0xFF00 +#define INTEL_FLASH_16BIT_ERASE_BLOCK 0x2000 +#define INTEL_FLASH_16BIT_ERASE_CONFIRM 0xD000 +#define INTEL_FLASH_16BIT_PROGRAM 0x4000 +#define INTEL_FLASH_8BIT 0 +#define INTEL_FLASH_16BIT 1 + + +/* + * Common Flash Interface (CFI) commands and offsets + */ + +#define FLASH_CFI_QUERY_ADDR 0x55 +#define FLASH_CFI_QUERY_MODE 0x98 +#define FLASH_CFI_QUERY_EXIT 0xFF + +#define FLASH_CFI_MANUFACTURER 0x00 +#define FLASH_CFI_DEVICE 0x01 +#define FLASH_CFI_SIGNATURE 0x10 +#define FLASH_CFI_QUERY_STRING 0x10 +#define FLASH_CFI_COMMAND_SET 0x13 +#define FLASH_CFI_DEVICE_SIZE 0x27 +#define FLASH_CFI_DEVICE_INTERFACE 0x28 +#define FLASH_CFI_REGION_COUNT 0x2C +#define FLASH_CFI_REGION_TABLE 0x2D + +#define FLASH_CFI_CMDSET_INTEL_ECS 0x0001 /* Intel extended */ +#define FLASH_CFI_CMDSET_AMD_STD 0x0002 /* AMD Standard */ +#define FLASH_CFI_CMDSET_INTEL_STD 0x0003 /* Intel Standard */ +#define FLASH_CFI_CMDSET_AMD_ECS 0x0004 /* AMD Extended */ + +#define FLASH_CFI_DEVIF_X8 0x0000 /* 8-bit asynchronous */ +#define FLASH_CFI_DEVIF_X16 0x0001 /* 16-bit asynchronous */ +#define FLASH_CFI_DEVIF_X8X16 0x0002 /* 8 or 16-bit with BYTE# pin */ +#define FLASH_CFI_DEVIF_X32 0x0003 /* 32-bit asynchronous */ + +/* + * JEDEC offsets + */ + +#define FLASH_JEDEC_OFFSET_MFR 0 +#define FLASH_JEDEC_OFFSET_DEV 1 + +/* Vendor-specific flash identifiers */ + +#define FLASH_MFR_HYUNDAI 0xAD + +/* ********************************************************************* + * Macros for defining custom sector tables + ********************************************************************* */ + +#define FLASH_SECTOR_RANGE(nblks,size) (((nblks)-1) << 16) + ((size)/256) +#define FLASH_SECTOR_NBLKS(x) (((x) >> 16)+1) +#define FLASH_SECTOR_SIZE(x) (((x) & 0xFFFF)*256) +#define FLASH_MAXSECTORS 8 + + +/* ********************************************************************* + * Structures + ********************************************************************* */ + +/* + * This structure is passed in the "probe_ptr" field of the + * flash's probe routines and can be used for advanced + * configuration. If you pass this structure, probe_a and + * probe_b will be ignored by the driver + * + * flash_prog_phys is the base address you use for flash commands - + * you can put 0 here if it's the same as flash_phys. some boards, + * like the Algor P5064, have a different PA region used for doing + * byte accesses to the flash. In this case the special + * "flash_prog_phys" field is used for that. + */ + + +#define FLASH_FLG_NVRAM 0x00000001 /* Reserve space for NVRAM */ +#define FLASH_FLG_AUTOSIZE 0x00000002 /* resize to actual device size */ +#define FLASH_FLG_16BIT 0x00000004 /* it's a 16-bit ROM in 16-bit mode */ +#define FLASH_FLG_MANUAL 0x00000008 /* Not CFI, manual sectoring */ +#define FLASH_FLG_WIDE 0x00000010 /* must shift control addresses left one bit */ + +#ifndef __ASSEMBLER__ +typedef struct flash_probe_t { + long flash_phys; + long flash_prog_phys; /* base address for programming, if different */ + int flash_size; /* total flash size */ + int flash_flags; + /* The following are used when manually sectoring */ + int flash_cmdset; + int flash_nsectors; /* number of ranges */ + int flash_sectors[FLASH_MAXSECTORS]; +} flash_probe_t; +#endif |