LXR qemu/hw/microblaze/petalogix_s3adsp1800

   1/*
   2 * Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800
   3 * boards.
   4 *
   5 * Copyright (c) 2009 Edgar E. Iglesias.
   6 *
   7 * Permission is hereby granted, free of charge, to any person obtaining a copy
   8 * of this software and associated documentation files (the "Software"), to deal
   9 * in the Software without restriction, including without limitation the rights
  10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11 * copies of the Software, and to permit persons to whom the Software is
  12 * furnished to do so, subject to the following conditions:
  13 *
  14 * The above copyright notice and this permission notice shall be included in
  15 * all copies or substantial portions of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23 * THE SOFTWARE.
  24 */
  25
  26#include "hw/sysbus.h"
  27#include "hw/hw.h"
  28#include "net/net.h"
  29#include "hw/block/flash.h"
  30#include "sysemu/sysemu.h"
  31#include "hw/devices.h"
  32#include "hw/boards.h"
  33#include "hw/xilinx.h"
  34#include "sysemu/blockdev.h"
  35#include "exec/address-spaces.h"
  36
  37#include "boot.h"
  38#include "pic_cpu.h"
  39
  40#define LMB_BRAM_SIZE  (128 * 1024)
  41#define FLASH_SIZE     (16 * 1024 * 1024)
  42
  43#define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb"
  44
  45#define MEMORY_BASEADDR 0x90000000
  46#define FLASH_BASEADDR 0xa0000000
  47#define INTC_BASEADDR 0x81800000
  48#define TIMER_BASEADDR 0x83c00000
  49#define UARTLITE_BASEADDR 0x84000000
  50#define ETHLITE_BASEADDR 0x81000000
  51
  52static void machine_cpu_reset(MicroBlazeCPU *cpu)
  53{
  54    CPUMBState *env = &cpu->env;
  55
  56    env->pvr.regs[10] = 0x0c000000; /* spartan 3a dsp family.  */
  57}
  58
  59static void
  60petalogix_s3adsp1800_init(QEMUMachineInitArgs *args)
  61{
  62    ram_addr_t ram_size = args->ram_size;
  63    const char *cpu_model = args->cpu_model;
  64    DeviceState *dev;
  65    MicroBlazeCPU *cpu;
  66    CPUMBState *env;
  67    DriveInfo *dinfo;
  68    int i;
  69    hwaddr ddr_base = MEMORY_BASEADDR;
  70    MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
  71    MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
  72    qemu_irq irq[32], *cpu_irq;
  73    MemoryRegion *sysmem = get_system_memory();
  74
  75    /* init CPUs */
  76    if (cpu_model == NULL) {
  77        cpu_model = "microblaze";
  78    }
  79    cpu = cpu_mb_init(cpu_model);
  80    env = &cpu->env;
  81
  82    /* Attach emulated BRAM through the LMB.  */
  83    memory_region_init_ram(phys_lmb_bram,
  84                           "petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE);
  85    vmstate_register_ram_global(phys_lmb_bram);
  86    memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram);
  87
  88    memory_region_init_ram(phys_ram, "petalogix_s3adsp1800.ram", ram_size);
  89    vmstate_register_ram_global(phys_ram);
  90    memory_region_add_subregion(sysmem, ddr_base, phys_ram);
  91
  92    dinfo = drive_get(IF_PFLASH, 0, 0);
  93    pflash_cfi01_register(FLASH_BASEADDR,
  94                          NULL, "petalogix_s3adsp1800.flash", FLASH_SIZE,
  95                          dinfo ? dinfo->bdrv : NULL, (64 * 1024),
  96                          FLASH_SIZE >> 16,
  97                          1, 0x89, 0x18, 0x0000, 0x0, 1);
  98
  99    cpu_irq = microblaze_pic_init_cpu(env);
 100    dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 2);
 101    for (i = 0; i < 32; i++) {
 102        irq[i] = qdev_get_gpio_in(dev, i);
 103    }
 104
 105    sysbus_create_simple("xlnx.xps-uartlite", UARTLITE_BASEADDR, irq[3]);
 106    /* 2 timers at irq 2 @ 62 Mhz.  */
 107    xilinx_timer_create(TIMER_BASEADDR, irq[0], 0, 62 * 1000000);
 108    xilinx_ethlite_create(&nd_table[0], ETHLITE_BASEADDR, irq[1], 0, 0);
 109
 110    microblaze_load_kernel(cpu, ddr_base, ram_size,
 111                    BINARY_DEVICE_TREE_FILE, machine_cpu_reset);
 112}
 113
 114static QEMUMachine petalogix_s3adsp1800_machine = {
 115    .name = "petalogix-s3adsp1800",
 116    .desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800",
 117    .init = petalogix_s3adsp1800_init,
 118    .is_default = 1,
 119    DEFAULT_MACHINE_OPTIONS,
 120};
 121
 122static void petalogix_s3adsp1800_machine_init(void)
 123{
 124    qemu_register_machine(&petalogix_s3adsp1800_machine);
 125}
 126
 127machine_init(petalogix_s3adsp1800_machine_init);
 128