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