imx_machdep.h revision 259354
1/*- 2 * Copyright (c) 2013 Ian Lepore <ian@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/10/sys/arm/freescale/imx/imx_machdep.h 259354 2013-12-13 22:30:21Z ian $ 27 */ 28 29#ifndef IMX_MACHDEP_H 30#define IMX_MACHDEP_H 31 32#include <sys/types.h> 33 34/* Common functions, implemented in imx_machdep.c. */ 35 36void imx_devmap_addentry(vm_paddr_t _pa, vm_size_t _sz); 37void imx_wdog_cpu_reset(vm_offset_t _wdcr_phys) __attribute__((__noreturn__)); 38 39/* From here down, routines are implemented in imxNN_machdep.c. */ 40 41/* 42 * SoC identity. 43 * According to the documentation, there is such a thing as an i.MX6 Dual 44 * (non-lite flavor). However, Freescale doesn't seem to have assigned it a 45 * number in their code for determining the SoC type in u-boot. 46 * 47 * To-do: put silicon revision numbers into the low-order bits somewhere. 48 */ 49#define IMXSOC_51 0x51000000 50#define IMXSOC_53 0x53000000 51#define IMXSOC_6SL 0x60000000 52#define IMXSOC_6DL 0x61000000 53#define IMXSOC_6S 0x62000000 54#define IMXSOC_6Q 0x63000000 55#define IMXSOC_FAMSHIFT 28 56 57u_int imx_soc_type(void); 58u_int imx_soc_family(void); 59 60void imx_devmap_init(void); 61 62/* 63 * We need a clock management system that works across unrelated SoCs and 64 * devices. For now, to keep imx development moving, define some barebones 65 * functionality that can be shared within the imx family by having each SoC 66 * implement functions with a common name. 67 * 68 * The usb enable functions are best-effort. They turn on the usb otg, host, 69 * and phy clocks in a SoC-specific manner, but it may take a lot more than that 70 * to make usb work on a given board. In particular, it can require specific 71 * pinmux setup of gpio pins connected to external phy parts, voltage regulators 72 * and overcurrent detectors, and so on. On such boards, u-boot or other early 73 * board setup code has to handle those things. 74 */ 75void imx_ccm_usb_enable(device_t _usbdev); 76void imx_ccm_usbphy_enable(device_t _phydev); 77 78#endif 79 80