LXR qemu/hw/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 "sysbus.h"
  27#include "hw.h"
  28#include "net.h"
  29#include "flash.h"
  30#include "sysemu.h"
  31#include "devices.h"
  32#include "boards.h"
  33#include "xilinx.h"
  34#include "blockdev.h"
  35#include "exec-memory.h"
  36
  37#include "microblaze_boot.h"
  38#include "microblaze_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(ram_addr_t ram_size,
  61                          const char *boot_device,
  62                          const char *kernel_filename,
  63                          const char *kernel_cmdline,
  64                          const char *initrd_filename, const char *cpu_model)
  65{
  66    DeviceState *dev;
  67    MicroBlazeCPU *cpu;
  68    CPUMBState *env;
  69    DriveInfo *dinfo;
  70    int i;
  71    target_phys_addr_t ddr_base = MEMORY_BASEADDR;
  72    MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
  73    MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
  74    qemu_irq irq[32], *cpu_irq;
  75    MemoryRegion *sysmem = get_system_memory();
  76
  77    /* init CPUs */
  78    if (cpu_model == NULL) {
  79        cpu_model = "microblaze";
  80    }
  81    cpu = cpu_mb_init(cpu_model);
  82    env = &cpu->env;
  83
  84    /* Attach emulated BRAM through the LMB.  */
  85    memory_region_init_ram(phys_lmb_bram,
  86                           "petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE);
  87    vmstate_register_ram_global(phys_lmb_bram);
  88    memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram);
  89
  90    memory_region_init_ram(phys_ram, "petalogix_s3adsp1800.ram", ram_size);
  91    vmstate_register_ram_global(phys_ram);
  92    memory_region_add_subregion(sysmem, ddr_base, phys_ram);
  93
  94    dinfo = drive_get(IF_PFLASH, 0, 0);
  95    pflash_cfi01_register(FLASH_BASEADDR,
  96                          NULL, "petalogix_s3adsp1800.flash", FLASH_SIZE,
  97                          dinfo ? dinfo->bdrv : NULL, (64 * 1024),
  98                          FLASH_SIZE >> 16,
  99                          1, 0x89, 0x18, 0x0000, 0x0, 1);
 100
 101    cpu_irq = microblaze_pic_init_cpu(env);
 102    dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 2);
 103    for (i = 0; i < 32; i++) {
 104        irq[i] = qdev_get_gpio_in(dev, i);
 105    }
 106
 107    sysbus_create_simple("xlnx.xps-uartlite", UARTLITE_BASEADDR, irq[3]);
 108    /* 2 timers at irq 2 @ 62 Mhz.  */
 109    xilinx_timer_create(TIMER_BASEADDR, irq[0], 0, 62 * 1000000);
 110    xilinx_ethlite_create(&nd_table[0], ETHLITE_BASEADDR, irq[1], 0, 0);
 111
 112    microblaze_load_kernel(cpu, ddr_base, ram_size,
 113                    BINARY_DEVICE_TREE_FILE, machine_cpu_reset);
 114}
 115
 116static QEMUMachine petalogix_s3adsp1800_machine = {
 117    .name = "petalogix-s3adsp1800",
 118    .desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800",
 119    .init = petalogix_s3adsp1800_init,
 120    .is_default = 1
 121};
 122
 123static void petalogix_s3adsp1800_machine_init(void)
 124{
 125    qemu_register_machine(&petalogix_s3adsp1800_machine);
 126}
 127
 128machine_init(petalogix_s3adsp1800_machine_init);
 129