1*5ca8e326SPierre-Luc Drouin /*- 2*5ca8e326SPierre-Luc Drouin * SPDX-License-Identifier: BSD-2-Clause 3*5ca8e326SPierre-Luc Drouin * 4*5ca8e326SPierre-Luc Drouin * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com> 5*5ca8e326SPierre-Luc Drouin * Copyright (c) 2024 Pierre-Luc Drouin <pldrouin@pldrouin.net> 6*5ca8e326SPierre-Luc Drouin * 7*5ca8e326SPierre-Luc Drouin * Redistribution and use in source and binary forms, with or without 8*5ca8e326SPierre-Luc Drouin * modification, are permitted provided that the following conditions 9*5ca8e326SPierre-Luc Drouin * are met: 10*5ca8e326SPierre-Luc Drouin * 1. Redistributions of source code must retain the above copyright 11*5ca8e326SPierre-Luc Drouin * notice, this list of conditions and the following disclaimer. 12*5ca8e326SPierre-Luc Drouin * 2. Redistributions in binary form must reproduce the above copyright 13*5ca8e326SPierre-Luc Drouin * notice, this list of conditions and the following disclaimer in the 14*5ca8e326SPierre-Luc Drouin * documentation and/or other materials provided with the distribution. 15*5ca8e326SPierre-Luc Drouin * 16*5ca8e326SPierre-Luc Drouin * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17*5ca8e326SPierre-Luc Drouin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*5ca8e326SPierre-Luc Drouin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*5ca8e326SPierre-Luc Drouin * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20*5ca8e326SPierre-Luc Drouin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*5ca8e326SPierre-Luc Drouin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*5ca8e326SPierre-Luc Drouin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*5ca8e326SPierre-Luc Drouin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*5ca8e326SPierre-Luc Drouin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*5ca8e326SPierre-Luc Drouin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*5ca8e326SPierre-Luc Drouin * SUCH DAMAGE. 27*5ca8e326SPierre-Luc Drouin */ 28*5ca8e326SPierre-Luc Drouin 29*5ca8e326SPierre-Luc Drouin /* 30*5ca8e326SPierre-Luc Drouin * Vybrid Family Inter-Integrated Circuit (I2C) 31*5ca8e326SPierre-Luc Drouin * Chapter 48, Vybrid Reference Manual, Rev. 5, 07/2013 32*5ca8e326SPierre-Luc Drouin * 33*5ca8e326SPierre-Luc Drouin * The current implementation is based on the original driver by Ruslan Bukin, 34*5ca8e326SPierre-Luc Drouin * later modified by Dawid Górecki, and split into FDT and ACPI drivers by Val 35*5ca8e326SPierre-Luc Drouin * Packett. 36*5ca8e326SPierre-Luc Drouin */ 37*5ca8e326SPierre-Luc Drouin 38*5ca8e326SPierre-Luc Drouin #ifndef __VF_I2C_H__ 39*5ca8e326SPierre-Luc Drouin #define __VF_I2C_H__ 40*5ca8e326SPierre-Luc Drouin 41*5ca8e326SPierre-Luc Drouin #include "opt_acpi.h" 42*5ca8e326SPierre-Luc Drouin #include "opt_platform.h" 43*5ca8e326SPierre-Luc Drouin 44*5ca8e326SPierre-Luc Drouin #ifdef FDT 45*5ca8e326SPierre-Luc Drouin #include <dev/clk/clk.h> 46*5ca8e326SPierre-Luc Drouin #endif 47*5ca8e326SPierre-Luc Drouin 48*5ca8e326SPierre-Luc Drouin #define VF_I2C_DEVSTR "Vybrid Family Inter-Integrated Circuit (I2C)" 49*5ca8e326SPierre-Luc Drouin 50*5ca8e326SPierre-Luc Drouin #define HW_MVF600 0x01 51*5ca8e326SPierre-Luc Drouin #define HW_VF610 0x02 52*5ca8e326SPierre-Luc Drouin 53*5ca8e326SPierre-Luc Drouin #define MVF600_DIV_REG 0x14 54*5ca8e326SPierre-Luc Drouin 55*5ca8e326SPierre-Luc Drouin #define VF_I2C_DEFAULT_BUS_SPEED 100000 56*5ca8e326SPierre-Luc Drouin 57*5ca8e326SPierre-Luc Drouin struct vf_i2c_softc { 58*5ca8e326SPierre-Luc Drouin struct resource *res[2]; 59*5ca8e326SPierre-Luc Drouin bus_space_tag_t bst; 60*5ca8e326SPierre-Luc Drouin bus_space_handle_t bsh; 61*5ca8e326SPierre-Luc Drouin uint32_t freq; 62*5ca8e326SPierre-Luc Drouin device_t dev; 63*5ca8e326SPierre-Luc Drouin device_t iicbus; 64*5ca8e326SPierre-Luc Drouin struct mtx mutex; 65*5ca8e326SPierre-Luc Drouin uintptr_t hwtype; 66*5ca8e326SPierre-Luc Drouin #ifdef FDT 67*5ca8e326SPierre-Luc Drouin clk_t clock; 68*5ca8e326SPierre-Luc Drouin #endif 69*5ca8e326SPierre-Luc Drouin }; 70*5ca8e326SPierre-Luc Drouin 71*5ca8e326SPierre-Luc Drouin extern driver_t vf_i2c_driver; 72*5ca8e326SPierre-Luc Drouin 73*5ca8e326SPierre-Luc Drouin device_attach_t vf_i2c_attach_common; 74*5ca8e326SPierre-Luc Drouin 75*5ca8e326SPierre-Luc Drouin #endif /* !__VF_I2C_H__ */ 76