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 "opt_global.h" 37 38 #include <sys/cdefs.h> 39 __FBSDID("$FreeBSD$"); 40 41 #define _ARM32_BUS_DMA_PRIVATE 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/bus.h> 45 46 #include <vm/vm.h> 47 #include <vm/pmap.h> 48 49 #include <dev/fdt/fdt_common.h> 50 51 #include <machine/bus.h> 52 #include <machine/devmap.h> 53 #include <machine/machdep.h> 54 #include <machine/platform.h> 55 56 #include <arm/xilinx/zy7_reg.h> 57 58 void (*zynq7_cpu_reset)(void); 59 60 vm_offset_t 61 platform_lastaddr(void) 62 { 63 64 return (arm_devmap_lastaddr()); 65 } 66 67 void 68 platform_probe_and_attach(void) 69 { 70 71 } 72 73 void 74 platform_gpio_init(void) 75 { 76 } 77 78 void 79 platform_late_init(void) 80 { 81 } 82 83 /* 84 * Set up static device mappings. Not strictly necessary -- simplebus will 85 * dynamically establish mappings as needed -- but doing it this way gets us 86 * nice efficient 1MB section mappings. 87 */ 88 int 89 platform_devmap_init(void) 90 { 91 92 arm_devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE); 93 arm_devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE); 94 95 return (0); 96 } 97 98 99 struct fdt_fixup_entry fdt_fixup_table[] = { 100 { NULL, NULL } 101 }; 102 103 static int 104 fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig, 105 int *pol) 106 { 107 108 if (!fdt_is_compatible(node, "arm,gic")) 109 return (ENXIO); 110 111 *interrupt = fdt32_to_cpu(intr[0]); 112 *trig = INTR_TRIGGER_CONFORM; 113 *pol = INTR_POLARITY_CONFORM; 114 115 return (0); 116 } 117 118 fdt_pic_decode_t fdt_pic_table[] = { 119 &fdt_gic_decode_ic, 120 NULL 121 }; 122 123 124 struct arm32_dma_range * 125 bus_dma_get_range(void) 126 { 127 128 return (NULL); 129 } 130 131 int 132 bus_dma_get_range_nb(void) 133 { 134 135 return (0); 136 } 137 138 void 139 cpu_reset() 140 { 141 if (zynq7_cpu_reset != NULL) 142 (*zynq7_cpu_reset)(); 143 144 printf("cpu_reset: no platform cpu_reset. hanging.\n"); 145 for (;;) 146 ; 147 } 148