1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013 Thomas Skibo 5 * All rights reserved. 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 * $FreeBSD$ 29 */ 30 31 /* 32 * Machine dependent code for Xilinx Zynq-7000 Soc. 33 * 34 * Reference: Zynq-7000 All Programmable SoC Technical Reference Manual. 35 * (v1.4) November 16, 2012. Xilinx doc UG585. 36 */ 37 38 #include "opt_platform.h" 39 40 #include <sys/cdefs.h> 41 __FBSDID("$FreeBSD$"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/bus.h> 46 #include <sys/devmap.h> 47 48 #include <vm/vm.h> 49 #include <vm/pmap.h> 50 51 #include <machine/bus.h> 52 #include <machine/machdep.h> 53 #include <machine/platform.h> 54 #include <machine/platformvar.h> 55 56 #include <arm/xilinx/zy7_machdep.h> 57 #include <arm/xilinx/zy7_reg.h> 58 59 #include "platform_if.h" 60 #include "platform_pl310_if.h" 61 62 void (*zynq7_cpu_reset)(void); 63 64 /* 65 * Set up static device mappings. Not strictly necessary -- simplebus will 66 * dynamically establish mappings as needed -- but doing it this way gets us 67 * nice efficient 1MB section mappings. 68 */ 69 static int 70 zynq7_devmap_init(platform_t plat) 71 { 72 73 devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE); 74 devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE); 75 76 return (0); 77 } 78 79 static void 80 zynq7_do_cpu_reset(platform_t plat) 81 { 82 if (zynq7_cpu_reset != NULL) 83 (*zynq7_cpu_reset)(); 84 85 printf("cpu_reset: no platform cpu_reset. hanging.\n"); 86 for (;;) 87 ; 88 } 89 90 static platform_method_t zynq7_methods[] = { 91 PLATFORMMETHOD(platform_devmap_init, zynq7_devmap_init), 92 PLATFORMMETHOD(platform_cpu_reset, zynq7_do_cpu_reset), 93 94 #ifdef SMP 95 PLATFORMMETHOD(platform_mp_setmaxid, zynq7_mp_setmaxid), 96 PLATFORMMETHOD(platform_mp_start_ap, zynq7_mp_start_ap), 97 #endif 98 99 PLATFORMMETHOD(platform_pl310_init, zynq7_pl310_init), 100 101 PLATFORMMETHOD_END, 102 }; 103 104 FDT_PLATFORM_DEF(zynq7, "zynq7", 0, "xlnx,zynq-7000", 200); 105