LXR qemu/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
  27typedef struct XlnxEP108 {
  28    XlnxZynqMPState soc;
  29    MemoryRegion ddr_ram;
  30} XlnxEP108;
  31
  32static struct arm_boot_info xlnx_ep108_binfo;
  33
  34static 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
 109static void xlnx_ep108_machine_init(MachineClass *mc)
 110{
 111    mc->desc = "Xilinx ZynqMP EP108 board";
 112    mc->init = xlnx_ep108_init;
 113}
 114
 115DEFINE_MACHINE("xlnx-ep108", xlnx_ep108_machine_init)
 116