From bd3581323cc02aefc79a21780a4ca8c578642892 Mon Sep 17 00:00:00 2001 From: "Ira W. Snyder" Date: Wed, 7 Apr 2010 09:43:00 +0200 Subject: mfd: Janz CMOD-IO PCI MODULbus Carrier Board support The Janz CMOD-IO PCI MODULbus carrier board is a PCI to MODULbus bridge, which may host many different types of MODULbus daughterboards, including CAN and GPIO controllers. Signed-off-by: Ira W. Snyder Reviewed-by: Wolfgang Grandegger Signed-off-by: Samuel Ortiz --- include/linux/mfd/janz.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 include/linux/mfd/janz.h (limited to 'include') diff --git a/include/linux/mfd/janz.h b/include/linux/mfd/janz.h new file mode 100644 index 00000000000..e9994c46980 --- /dev/null +++ b/include/linux/mfd/janz.h @@ -0,0 +1,54 @@ +/* + * Common Definitions for Janz MODULbus devices + * + * Copyright (c) 2010 Ira W. Snyder + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef JANZ_H +#define JANZ_H + +struct janz_platform_data { + /* MODULbus Module Number */ + unsigned int modno; +}; + +/* PLX bridge chip onboard registers */ +struct janz_cmodio_onboard_regs { + u8 unused1; + + /* + * Read access: interrupt status + * Write access: interrupt disable + */ + u8 int_disable; + u8 unused2; + + /* + * Read access: MODULbus number (hex switch) + * Write access: interrupt enable + */ + u8 int_enable; + u8 unused3; + + /* write-only */ + u8 reset_assert; + u8 unused4; + + /* write-only */ + u8 reset_deassert; + u8 unused5; + + /* read-write access to serial EEPROM */ + u8 eep; + u8 unused6; + + /* write-only access to EEPROM chip select */ + u8 enid; +}; + +#endif /* JANZ_H */ -- cgit v1.2.2