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Diffstat (limited to 'board/siemens/common/board.h')
| -rw-r--r-- | board/siemens/common/board.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/board/siemens/common/board.h b/board/siemens/common/board.h new file mode 100644 index 00000000000..db34bc78711 --- /dev/null +++ b/board/siemens/common/board.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Common board functions for siemens based boards + * (C) Copyright 2022 Siemens Schweiz AG + */ + +#ifndef __COMMON_BOARD_H +#define __COMMON_BOARD_H + +/* + * Chip data + * Offset in EEPROM: 0x120 - 0x14F + * + * ----------------------------------------------------------------------------------- + * | Address range | Content | + * ----------------------------------------------------------------------------------- + * | 0x120 - 0x123 | Magic Number - 0x43484950 (4 byte) | + * ----------------------------------------------------------------------------------- + * | 0x124 - 0x133 | Device Nomenclature (15 + 1 byte) | + * ----------------------------------------------------------------------------------- + * | 0x134 - 0x13A | HW Version of the form "v00.00" (6 + 1 byte) | + * | | - First 2 digits: Layout revision (starting from 1) | + * | | - Last 2 digits: Assembly variant revision (starting from 1) | + * ----------------------------------------------------------------------------------- + * | 0x13B - 0x13F | Flash Size in Gibit (4 + 1 byte) | + * ----------------------------------------------------------------------------------- + * | 0x140 - 0x144 | Ram Size in Gibit (4 + 1 byte) | + * ----------------------------------------------------------------------------------- + * | 0x145 - 0x14F | Sequence number, equals DMC-code (10 + 1 byte) [OBSOLETE] | + * ----------------------------------------------------------------------------------- + */ + +#define MAGIC_CHIP 0x50494843 +#define EEPROM_CHIP_OFFSET 0x120 + +struct chip_data { + unsigned int magic; + char sdevname[16]; + char shwver[7]; + char flash_size[5]; + char ram_size[5]; +}; + +#endif /* __COMMON_BOARD_H */ |