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