| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * Common Definitions for Janz MODULbus devices |
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| 4 | * |
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| 5 | * Copyright (c) 2010 Ira W. Snyder <iws@ovro.caltech.edu> |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef JANZ_H |
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| 9 | #define JANZ_H |
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| 10 | |
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| 11 | struct janz_platform_data { |
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| 12 | /* MODULbus Module Number */ |
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| 13 | unsigned int modno; |
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| 14 | }; |
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| 15 | |
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| 16 | /* PLX bridge chip onboard registers */ |
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| 17 | struct janz_cmodio_onboard_regs { |
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| 18 | u8 unused1; |
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| 19 | |
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| 20 | /* |
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| 21 | * Read access: interrupt status |
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| 22 | * Write access: interrupt disable |
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| 23 | */ |
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| 24 | u8 int_disable; |
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| 25 | u8 unused2; |
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| 26 | |
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| 27 | /* |
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| 28 | * Read access: MODULbus number (hex switch) |
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| 29 | * Write access: interrupt enable |
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| 30 | */ |
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| 31 | u8 int_enable; |
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| 32 | u8 unused3; |
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| 33 | |
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| 34 | /* write-only */ |
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| 35 | u8 reset_assert; |
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| 36 | u8 unused4; |
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| 37 | |
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| 38 | /* write-only */ |
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| 39 | u8 reset_deassert; |
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| 40 | u8 unused5; |
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| 41 | |
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| 42 | /* read-write access to serial EEPROM */ |
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| 43 | u8 eep; |
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| 44 | u8 unused6; |
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| 45 | |
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| 46 | /* write-only access to EEPROM chip select */ |
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| 47 | u8 enid; |
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| 48 | }; |
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| 49 | |
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| 50 | #endif /* JANZ_H */ |
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| 51 | |
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