zy7_machdep.c revision 259364
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: stable/10/sys/arm/xilinx/zy7_machdep.c 259364 2013-12-13 23:56:53Z ian $ 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: stable/10/sys/arm/xilinx/zy7_machdep.c 259364 2013-12-13 23:56:53Z ian $"); 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 55#include <arm/xilinx/zy7_reg.h> 56 57void (*zynq7_cpu_reset)(void); 58 59vm_offset_t 60initarm_lastaddr(void) 61{ 62 63 return (ZYNQ7_PSIO_VBASE); 64} 65 66void 67initarm_gpio_init(void) 68{ 69} 70 71void 72initarm_late_init(void) 73{ 74} 75 76#define FDT_DEVMAP_SIZE 3 77static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_SIZE]; 78 79/* 80 * Construct pmap_devmap[] with DT-derived config data. 81 */ 82int 83platform_devmap_init(void) 84{ 85 int i = 0; 86 87 fdt_devmap[i].pd_va = ZYNQ7_PSIO_VBASE; 88 fdt_devmap[i].pd_pa = ZYNQ7_PSIO_HWBASE; 89 fdt_devmap[i].pd_size = ZYNQ7_PSIO_SIZE; 90 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 91 fdt_devmap[i].pd_cache = PTE_DEVICE; 92 i++; 93 94 fdt_devmap[i].pd_va = ZYNQ7_PSCTL_VBASE; 95 fdt_devmap[i].pd_pa = ZYNQ7_PSCTL_HWBASE; 96 fdt_devmap[i].pd_size = ZYNQ7_PSCTL_SIZE; 97 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE; 98 fdt_devmap[i].pd_cache = PTE_DEVICE; 99 i++; 100 101 /* end of table */ 102 fdt_devmap[i].pd_va = 0; 103 fdt_devmap[i].pd_pa = 0; 104 fdt_devmap[i].pd_size = 0; 105 fdt_devmap[i].pd_prot = 0; 106 fdt_devmap[i].pd_cache = 0; 107 108 arm_devmap_register_table(&fdt_devmap[0]); 109 return (0); 110} 111 112 113struct fdt_fixup_entry fdt_fixup_table[] = { 114 { NULL, NULL } 115}; 116 117static int 118fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig, 119 int *pol) 120{ 121 122 if (!fdt_is_compatible(node, "arm,gic")) 123 return (ENXIO); 124 125 *interrupt = fdt32_to_cpu(intr[0]); 126 *trig = INTR_TRIGGER_CONFORM; 127 *pol = INTR_POLARITY_CONFORM; 128 129 return (0); 130} 131 132fdt_pic_decode_t fdt_pic_table[] = { 133 &fdt_gic_decode_ic, 134 NULL 135}; 136 137 138struct arm32_dma_range * 139bus_dma_get_range(void) 140{ 141 142 return (NULL); 143} 144 145int 146bus_dma_get_range_nb(void) 147{ 148 149 return (0); 150} 151 152void 153cpu_reset() 154{ 155 if (zynq7_cpu_reset != NULL) 156 (*zynq7_cpu_reset)(); 157 158 printf("cpu_reset: no platform cpu_reset. hanging.\n"); 159 for (;;) 160 ; 161} 162