hw/arm/xlnx-ep108.c

   1 /*
   2  * Xilinx ZynqMP EP108 board
   3  *
   4  * Copyright (C) 2015 Xilinx Inc
   5  * Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  15  * for more details.
  16  */
  17
  18 #include "qemu/osdep.h"
  19 #include "hw/arm/xlnx-zynqmp.h"
  20 #include "hw/boards.h"
  21 #include "qemu/error-report.h"
  22 #include "exec/address-spaces.h"
  23
  24 typedef struct XlnxEP108 {
  25     XlnxZynqMPState soc;
  26     MemoryRegion ddr_ram;
  27 } XlnxEP108;
  28
  29 static struct arm_boot_info xlnx_ep108_binfo;
  30
  31 static void xlnx_ep108_init(MachineState *machine)
  32 {
  33     XlnxEP108 *s = g_new0(XlnxEP108, 1);
  34     int i;
  35     uint64_t ram_size = machine->ram_size;
  36
  37     /* Create the memory region to pass to the SoC */
  38     if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
  39         error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
  40                      "0x%llx", ram_size,
  41                      XLNX_ZYNQMP_MAX_RAM_SIZE);
  42         exit(1);
  43     }
  44
  45     if (ram_size < 0x08000000) {
  46         qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for EP108",
  47                  ram_size);
  48     }
  49
  50     memory_region_allocate_system_memory(&s->ddr_ram, NULL, "ddr-ram",
  51                                          ram_size);
  52
  53     object_initialize(&s->soc, sizeof(s->soc), TYPE_XLNX_ZYNQMP);
  54     object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
  55                               &error_abort);
  56
  57     object_property_set_link(OBJECT(&s->soc), OBJECT(&s->ddr_ram),
  58                          "ddr-ram", &error_abort);
  59
  60     object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
  61
  62     for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
  63         SSIBus *spi_bus;
  64         DeviceState *flash_dev;
  65         qemu_irq cs_line;
  66         gchar *bus_name = g_strdup_printf("spi%d", i);
  67
  68         spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(&s->soc), bus_name);
  69         g_free(bus_name);
  70
  71         flash_dev = ssi_create_slave(spi_bus, "sst25wf080");
  72         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
  73
  74         sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
  75     }
  76
  77     xlnx_ep108_binfo.ram_size = ram_size;
  78     xlnx_ep108_binfo.kernel_filename = machine->kernel_filename;
  79     xlnx_ep108_binfo.kernel_cmdline = machine->kernel_cmdline;
  80     xlnx_ep108_binfo.initrd_filename = machine->initrd_filename;
  81     xlnx_ep108_binfo.loader_start = 0;
  82     arm_load_kernel(s->soc.boot_cpu_ptr, &xlnx_ep108_binfo);
  83 }
  84
  85 static void xlnx_ep108_machine_init(MachineClass *mc)
  86 {
  87     mc->desc = "Xilinx ZynqMP EP108 board";
  88     mc->init = xlnx_ep108_init;
  89 }
  90
  91 DEFINE_MACHINE("xlnx-ep108", xlnx_ep108_machine_init)