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/pmap.h> 53 #include <machine/frame.h> 54 #include <machine/machdep.h> 55 56 #include <arm/xilinx/zy7_reg.h> 57 58 void (*zynq7_cpu_reset)(void); 59 60 vm_offset_t 61 initarm_lastaddr(void) 62 { 63 64 return (ZYNQ7_PSIO_VBASE - ARM_NOCACHE_KVA_SIZE); 65 } 66 67 void 68 initarm_gpio_init(void) 69 { 70 } 71 72 void 73 initarm_late_init(void) 74 { 75 } 76 77 #define FDT_DEVMAP_SIZE 3 78 static struct pmap_devmap fdt_devmap[FDT_DEVMAP_SIZE]; 79 80 /* 81 * Construct pmap_devmap[] with DT-derived config data. 82 */ 83 int 84 platform_devmap_init(void) 85 { 86 int i = 0; 87 88 fdt_devmap[i].pd_va = ZYNQ7_PSIO_VBASE; 89 fdt_devmap[i].pd_pa = ZYNQ7_PSIO_HWBASE; 90 fdt_devmap[i].pd_size = ZYNQ7_PSIO_SIZE; 91 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 92 fdt_devmap[i].pd_cache = PTE_DEVICE; 93 i++; 94 95 fdt_devmap[i].pd_va = ZYNQ7_PSCTL_VBASE; 96 fdt_devmap[i].pd_pa = ZYNQ7_PSCTL_HWBASE; 97 fdt_devmap[i].pd_size = ZYNQ7_PSCTL_SIZE; 98 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 99 fdt_devmap[i].pd_cache = PTE_DEVICE; 100 i++; 101 102 /* end of table */ 103 fdt_devmap[i].pd_va = 0; 104 fdt_devmap[i].pd_pa = 0; 105 fdt_devmap[i].pd_size = 0; 106 fdt_devmap[i].pd_prot = 0; 107 fdt_devmap[i].pd_cache = 0; 108 109 pmap_devmap_bootstrap_table = &fdt_devmap[0]; 110 return (0); 111 } 112 113 114 struct fdt_fixup_entry fdt_fixup_table[] = { 115 { NULL, NULL } 116 }; 117 118 static int 119 fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig, 120 int *pol) 121 { 122 123 if (!fdt_is_compatible(node, "arm,gic")) 124 return (ENXIO); 125 126 *interrupt = fdt32_to_cpu(intr[0]); 127 *trig = INTR_TRIGGER_CONFORM; 128 *pol = INTR_POLARITY_CONFORM; 129 130 return (0); 131 } 132 133 fdt_pic_decode_t fdt_pic_table[] = { 134 &fdt_gic_decode_ic, 135 NULL 136 }; 137 138 139 struct arm32_dma_range * 140 bus_dma_get_range(void) 141 { 142 143 return (NULL); 144 } 145 146 int 147 bus_dma_get_range_nb(void) 148 { 149 150 return (0); 151 } 152 153 void 154 cpu_reset() 155 { 156 if (zynq7_cpu_reset != NULL) 157 (*zynq7_cpu_reset)(); 158 159 printf("cpu_reset: no platform cpu_reset. hanging.\n"); 160 for (;;) 161 ; 162 } 163