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 "qemu-common.h"
  21 #include "cpu.h"
  22 #include "hw/arm/xlnx-zynqmp.h"
  23 #include "hw/boards.h"
  24 #include "qemu/error-report.h"
  25 #include "exec/address-spaces.h"
  26
  27 typedef struct XlnxEP108 {
  28     XlnxZynqMPState soc;
  29     MemoryRegion ddr_ram;
  30 } XlnxEP108;
  31
  32 static struct arm_boot_info xlnx_ep108_binfo;
  33
  34 static void xlnx_ep108_init(MachineState *machine)
  35 {
  36     XlnxEP108 *s = g_new0(XlnxEP108, 1);
  37     int i;
  38     uint64_t ram_size = machine->ram_size;
  39
  40     /* Create the memory region to pass to the SoC */
  41     if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
  42         error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
  43                      "0x%llx", ram_size,
  44                      XLNX_ZYNQMP_MAX_RAM_SIZE);
  45         exit(1);
  46     }
  47
  48     if (ram_size < 0x08000000) {
  49         qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for EP108",
  50                  ram_size);
  51     }
  52
  53     memory_region_allocate_system_memory(&s->ddr_ram, NULL, "ddr-ram",
  54                                          ram_size);
  55
  56     object_initialize(&s->soc, sizeof(s->soc), TYPE_XLNX_ZYNQMP);
  57     object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
  58                               &error_abort);
  59
  60     object_property_set_link(OBJECT(&s->soc), OBJECT(&s->ddr_ram),
  61                          "ddr-ram", &error_abort);
  62
  63     object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
  64
  65     /* Create and plug in the SD cards */
  66     for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
  67         BusState *bus;
  68         DriveInfo *di = drive_get_next(IF_SD);
  69         BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
  70         DeviceState *carddev;
  71         char *bus_name;
  72
  73         bus_name = g_strdup_printf("sd-bus%d", i);
  74         bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
  75         g_free(bus_name);
  76         if (!bus) {
  77             error_report("No SD bus found for SD card %d", i);
  78             exit(1);
  79         }
  80         carddev = qdev_create(bus, TYPE_SD_CARD);
  81         qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
  82         object_property_set_bool(OBJECT(carddev), true, "realized",
  83                                  &error_fatal);
  84     }
  85
  86     for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
  87         SSIBus *spi_bus;
  88         DeviceState *flash_dev;
  89         qemu_irq cs_line;
  90         gchar *bus_name = g_strdup_printf("spi%d", i);
  91
  92         spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(&s->soc), bus_name);
  93         g_free(bus_name);
  94
  95         flash_dev = ssi_create_slave(spi_bus, "sst25wf080");
  96         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
  97
  98         sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
  99     }
 100
 101     xlnx_ep108_binfo.ram_size = ram_size;
 102     xlnx_ep108_binfo.kernel_filename = machine->kernel_filename;
 103     xlnx_ep108_binfo.kernel_cmdline = machine->kernel_cmdline;
 104     xlnx_ep108_binfo.initrd_filename = machine->initrd_filename;
 105     xlnx_ep108_binfo.loader_start = 0;
 106     arm_load_kernel(s->soc.boot_cpu_ptr, &xlnx_ep108_binfo);
 107 }
 108
 109 static void xlnx_ep108_machine_init(MachineClass *mc)
 110 {
 111     mc->desc = "Xilinx ZynqMP EP108 board";
 112     mc->init = xlnx_ep108_init;
 113 }
 114
 115 DEFINE_MACHINE("xlnx-ep108", xlnx_ep108_machine_init)