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/*
* Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800
* boards.
*
* Copyright (c) 2009 Edgar E. Iglesias.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw/sysbus.h"
#include "hw/hw.h"
#include "net/net.h"
#include "hw/block/flash.h"
#include "sysemu/sysemu.h"
#include "hw/devices.h"
#include "hw/boards.h"
#include "hw/xilinx.h"
#include "sysemu/blockdev.h"
#include "exec/address-spaces.h"
#include "boot.h"
#include "pic_cpu.h"
#define LMB_BRAM_SIZE (128 * 1024)
#define FLASH_SIZE (16 * 1024 * 1024)
#define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb"
#define MEMORY_BASEADDR 0x90000000
#define FLASH_BASEADDR 0xa0000000
#define INTC_BASEADDR 0x81800000
#define TIMER_BASEADDR 0x83c00000
#define UARTLITE_BASEADDR 0x84000000
#define ETHLITE_BASEADDR 0x81000000
static void machine_cpu_reset(MicroBlazeCPU *cpu)
{
CPUMBState *env = &cpu->env;
env->pvr.regs[10] = 0x0c000000; /* spartan 3a dsp family. */
}
static void
petalogix_s3adsp1800_init(QEMUMachineInitArgs *args)
{
ram_addr_t ram_size = args->ram_size;
const char *cpu_model = args->cpu_model;
DeviceState *dev;
MicroBlazeCPU *cpu;
CPUMBState *env;
DriveInfo *dinfo;
int i;
hwaddr ddr_base = MEMORY_BASEADDR;
MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
qemu_irq irq[32], *cpu_irq;
MemoryRegion *sysmem = get_system_memory();
/* init CPUs */
if (cpu_model == NULL) {
cpu_model = "microblaze";
}
cpu = cpu_mb_init(cpu_model);
env = &cpu->env;
/* Attach emulated BRAM through the LMB. */
memory_region_init_ram(phys_lmb_bram, NULL,
"petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE);
vmstate_register_ram_global(phys_lmb_bram);
memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram);
memory_region_init_ram(phys_ram, NULL, "petalogix_s3adsp1800.ram", ram_size);
vmstate_register_ram_global(phys_ram);
memory_region_add_subregion(sysmem, ddr_base, phys_ram);
dinfo = drive_get(IF_PFLASH, 0, 0);
pflash_cfi01_register(FLASH_BASEADDR,
NULL, "petalogix_s3adsp1800.flash", FLASH_SIZE,
dinfo ? dinfo->bdrv : NULL, (64 * 1024),
FLASH_SIZE >> 16,
1, 0x89, 0x18, 0x0000, 0x0, 1);
cpu_irq = microblaze_pic_init_cpu(env);
dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 0xA);
for (i = 0; i < 32; i++) {
irq[i] = qdev_get_gpio_in(dev, i);
}
sysbus_create_simple("xlnx.xps-uartlite", UARTLITE_BASEADDR, irq[3]);
/* 2 timers at irq 2 @ 62 Mhz. */
xilinx_timer_create(TIMER_BASEADDR, irq[0], 0, 62 * 1000000);
xilinx_ethlite_create(&nd_table[0], ETHLITE_BASEADDR, irq[1], 0, 0);
microblaze_load_kernel(cpu, ddr_base, ram_size,
args->initrd_filename,
BINARY_DEVICE_TREE_FILE,
machine_cpu_reset);
}
static QEMUMachine petalogix_s3adsp1800_machine = {
.name = "petalogix-s3adsp1800",
.desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800",
.init = petalogix_s3adsp1800_init,
.is_default = 1,
};
static void petalogix_s3adsp1800_machine_init(void)
{
qemu_register_machine(&petalogix_s3adsp1800_machine);
}
machine_init(petalogix_s3adsp1800_machine_init);
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