1 /*- 2 * Copyright (c) 2013 Thomas Skibo 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 /* 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 <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/bus.h> 42 #include <sys/devmap.h> 43 44 #include <vm/vm.h> 45 #include <vm/pmap.h> 46 47 #include <dev/fdt/fdt_common.h> 48 49 #include <machine/bus.h> 50 #include <machine/machdep.h> 51 #include <machine/platform.h> 52 53 #include <arm/xilinx/zy7_reg.h> 54 55 void (*zynq7_cpu_reset)(void); 56 57 vm_offset_t 58 platform_lastaddr(void) 59 { 60 61 return (devmap_lastaddr()); 62 } 63 64 void 65 platform_probe_and_attach(void) 66 { 67 68 } 69 70 void 71 platform_gpio_init(void) 72 { 73 } 74 75 void 76 platform_late_init(void) 77 { 78 } 79 80 /* 81 * Set up static device mappings. Not strictly necessary -- simplebus will 82 * dynamically establish mappings as needed -- but doing it this way gets us 83 * nice efficient 1MB section mappings. 84 */ 85 int 86 platform_devmap_init(void) 87 { 88 89 devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE); 90 devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE); 91 92 return (0); 93 } 94 95 96 #ifndef INTRNG 97 static int 98 fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig, 99 int *pol) 100 { 101 102 if (!fdt_is_compatible(node, "arm,gic")) 103 return (ENXIO); 104 105 *interrupt = fdt32_to_cpu(intr[0]); 106 *trig = INTR_TRIGGER_CONFORM; 107 *pol = INTR_POLARITY_CONFORM; 108 109 return (0); 110 } 111 112 fdt_pic_decode_t fdt_pic_table[] = { 113 &fdt_gic_decode_ic, 114 NULL 115 }; 116 #endif 117 118 void 119 cpu_reset() 120 { 121 if (zynq7_cpu_reset != NULL) 122 (*zynq7_cpu_reset)(); 123 124 printf("cpu_reset: no platform cpu_reset. hanging.\n"); 125 for (;;) 126 ; 127 } 128