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