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 * $FreeBSD$ 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 36 void imx_wdog_cpu_reset(vm_offset_t _wdcr_phys) __attribute__((__noreturn__)); 37 38 /* From here down, routines are implemented in imxNN_machdep.c. */ 39 40 /* 41 * SoC identity. 42 * According to the documentation, there is such a thing as an i.MX6 Dual 43 * (non-lite flavor). However, Freescale doesn't seem to have assigned it a 44 * number in their code for determining the SoC type in u-boot. 45 * 46 * To-do: put silicon revision numbers into the low-order bits somewhere. 47 */ 48 #define IMXSOC_51 0x51000000 49 #define IMXSOC_53 0x53000000 50 #define IMXSOC_6SL 0x60000000 51 #define IMXSOC_6DL 0x61000000 52 #define IMXSOC_6S 0x62000000 53 #define IMXSOC_6Q 0x63000000 54 #define IMXSOC_FAMSHIFT 28 55 56 u_int imx_soc_type(void); 57 u_int imx_soc_family(void); 58 59 /* 60 * We need a clock management system that works across unrelated SoCs and 61 * devices. For now, to keep imx development moving, define some barebones 62 * functionality that can be shared within the imx family by having each SoC 63 * implement functions with a common name. 64 * 65 * The usb enable functions are best-effort. They turn on the usb otg, host, 66 * and phy clocks in a SoC-specific manner, but it may take a lot more than that 67 * to make usb work on a given board. In particular, it can require specific 68 * pinmux setup of gpio pins connected to external phy parts, voltage regulators 69 * and overcurrent detectors, and so on. On such boards, u-boot or other early 70 * board setup code has to handle those things. 71 */ 72 void imx_ccm_usb_enable(device_t _usbdev); 73 void imx_ccm_usbphy_enable(device_t _phydev); 74 75 #endif 76 77