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 "qapi/error.h"
  20 #include "hw/arm/xlnx-zynqmp.h"
  21 #include "hw/boards.h"
  22 #include "qemu/error-report.h"
  23 #include "exec/address-spaces.h"
  24
  25 typedef struct XlnxEP108 {
  26     XlnxZynqMPState soc;
  27     MemoryRegion ddr_ram;
  28 } XlnxEP108;
  29
  30 static struct arm_boot_info xlnx_ep108_binfo;
  31
  32 static void xlnx_ep108_init(MachineState *machine)
  33 {
  34     XlnxEP108 *s = g_new0(XlnxEP108, 1);
  35     int i;
  36     uint64_t ram_size = machine->ram_size;
  37
  38     /* Create the memory region to pass to the SoC */
  39     if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
  40         error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
  41                      "0x%llx", ram_size,
  42                      XLNX_ZYNQMP_MAX_RAM_SIZE);
  43         exit(1);
  44     }
  45
  46     if (ram_size < 0x08000000) {
  47         qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for EP108",
  48                  ram_size);
  49     }
  50
  51     memory_region_allocate_system_memory(&s->ddr_ram, NULL, "ddr-ram",
  52                                          ram_size);
  53
  54     object_initialize(&s->soc, sizeof(s->soc), TYPE_XLNX_ZYNQMP);
  55     object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
  56                               &error_abort);
  57
  58     object_property_set_link(OBJECT(&s->soc), OBJECT(&s->ddr_ram),
  59                          "ddr-ram", &error_abort);
  60
  61     object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
  62
  63     /* Create and plug in the SD cards */
  64     for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
  65         BusState *bus;
  66         DriveInfo *di = drive_get_next(IF_SD);
  67         BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
  68         DeviceState *carddev;
  69         char *bus_name;
  70
  71         bus_name = g_strdup_printf("sd-bus%d", i);
  72         bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
  73         g_free(bus_name);
  74         if (!bus) {
  75             error_report("No SD bus found for SD card %d", i);
  76             exit(1);
  77         }
  78         carddev = qdev_create(bus, TYPE_SD_CARD);
  79         qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
  80         object_property_set_bool(OBJECT(carddev), true, "realized",
  81                                  &error_fatal);
  82     }
  83
  84     for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
  85         SSIBus *spi_bus;
  86         DeviceState *flash_dev;
  87         qemu_irq cs_line;
  88         gchar *bus_name = g_strdup_printf("spi%d", i);
  89
  90         spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(&s->soc), bus_name);
  91         g_free(bus_name);
  92
  93         flash_dev = ssi_create_slave(spi_bus, "sst25wf080");
  94         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
  95
  96         sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
  97     }
  98
  99     xlnx_ep108_binfo.ram_size = ram_size;
 100     xlnx_ep108_binfo.kernel_filename = machine->kernel_filename;
 101     xlnx_ep108_binfo.kernel_cmdline = machine->kernel_cmdline;
 102     xlnx_ep108_binfo.initrd_filename = machine->initrd_filename;
 103     xlnx_ep108_binfo.loader_start = 0;
 104     arm_load_kernel(s->soc.boot_cpu_ptr, &xlnx_ep108_binfo);
 105 }
 106
 107 static void xlnx_ep108_machine_init(MachineClass *mc)
 108 {
 109     mc->desc = "Xilinx ZynqMP EP108 board";
 110     mc->init = xlnx_ep108_init;
 111 }
 112
 113 DEFINE_MACHINE("xlnx-ep108", xlnx_ep108_machine_init)