| /* |
| * Model of Petalogix linux reference design targeting Xilinx Spartan ml605 |
| * board. |
| * |
| * Copyright (c) 2011 Michal Simek <monstr@monstr.eu> |
| * Copyright (c) 2011 PetaLogix |
| * 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/arm/devices.h" |
| #include "hw/boards.h" |
| #include "hw/xilinx.h" |
| #include "sysemu/blockdev.h" |
| #include "hw/char/serial.h" |
| #include "exec/address-spaces.h" |
| #include "hw/ssi.h" |
| |
| #include "boot.h" |
| #include "pic_cpu.h" |
| |
| #include "hw/stream.h" |
| |
| #define LMB_BRAM_SIZE (128 * 1024) |
| #define FLASH_SIZE (32 * 1024 * 1024) |
| |
| #define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb" |
| |
| #define NUM_SPI_FLASHES 4 |
| |
| #define MEMORY_BASEADDR 0x50000000 |
| #define FLASH_BASEADDR 0x86000000 |
| #define INTC_BASEADDR 0x81800000 |
| #define TIMER_BASEADDR 0x83c00000 |
| #define UART16550_BASEADDR 0x83e00000 |
| #define AXIENET_BASEADDR 0x82780000 |
| #define AXIDMA_BASEADDR 0x84600000 |
| |
| static void machine_cpu_reset(MicroBlazeCPU *cpu) |
| { |
| CPUMBState *env = &cpu->env; |
| |
| env->pvr.regs[10] = 0x0e000000; /* virtex 6 */ |
| /* setup pvr to match kernel setting */ |
| env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK; |
| env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI; |
| env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8); |
| env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK; |
| env->pvr.regs[4] = 0xc56b8000; |
| env->pvr.regs[5] = 0xc56be000; |
| } |
| |
| static void |
| petalogix_ml605_init(QEMUMachineInitArgs *args) |
| { |
| ram_addr_t ram_size = args->ram_size; |
| const char *cpu_model = args->cpu_model; |
| MemoryRegion *address_space_mem = get_system_memory(); |
| DeviceState *dev, *dma, *eth0; |
| MicroBlazeCPU *cpu; |
| SysBusDevice *busdev; |
| 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; |
| |
| /* 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, "petalogix_ml605.lmb_bram", |
| LMB_BRAM_SIZE); |
| vmstate_register_ram_global(phys_lmb_bram); |
| memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram); |
| |
| memory_region_init_ram(phys_ram, "petalogix_ml605.ram", ram_size); |
| vmstate_register_ram_global(phys_ram); |
| memory_region_add_subregion(address_space_mem, ddr_base, phys_ram); |
| |
| dinfo = drive_get(IF_PFLASH, 0, 0); |
| /* 5th parameter 2 means bank-width |
| * 10th paremeter 0 means little-endian */ |
| pflash_cfi01_register(FLASH_BASEADDR, |
| NULL, "petalogix_ml605.flash", FLASH_SIZE, |
| dinfo ? dinfo->bdrv : NULL, (64 * 1024), |
| FLASH_SIZE >> 16, |
| 2, 0x89, 0x18, 0x0000, 0x0, 0); |
| |
| |
| cpu_irq = microblaze_pic_init_cpu(env); |
| dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4); |
| for (i = 0; i < 32; i++) { |
| irq[i] = qdev_get_gpio_in(dev, i); |
| } |
| |
| serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2, |
| irq[5], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN); |
| |
| /* 2 timers at irq 2 @ 100 Mhz. */ |
| xilinx_timer_create(TIMER_BASEADDR, irq[2], 0, 100 * 1000000); |
| |
| /* axi ethernet and dma initialization. */ |
| qemu_check_nic_model(&nd_table[0], "xlnx.axi-ethernet"); |
| eth0 = qdev_create(NULL, "xlnx.axi-ethernet"); |
| dma = qdev_create(NULL, "xlnx.axi-dma"); |
| |
| /* FIXME: attach to the sysbus instead */ |
| object_property_add_child(container_get(qdev_get_machine(), "/unattached"), |
| "xilinx-dma", OBJECT(dma), NULL); |
| |
| xilinx_axiethernet_init(eth0, &nd_table[0], STREAM_SLAVE(dma), |
| 0x82780000, irq[3], 0x1000, 0x1000); |
| |
| xilinx_axidma_init(dma, STREAM_SLAVE(eth0), 0x84600000, irq[1], irq[0], |
| 100 * 1000000); |
| |
| { |
| SSIBus *spi; |
| |
| dev = qdev_create(NULL, "xlnx.xps-spi"); |
| qdev_prop_set_uint8(dev, "num-ss-bits", NUM_SPI_FLASHES); |
| qdev_init_nofail(dev); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_mmio_map(busdev, 0, 0x40a00000); |
| sysbus_connect_irq(busdev, 0, irq[4]); |
| |
| spi = (SSIBus *)qdev_get_child_bus(dev, "spi"); |
| |
| for (i = 0; i < NUM_SPI_FLASHES; i++) { |
| qemu_irq cs_line; |
| |
| dev = ssi_create_slave(spi, "n25q128"); |
| cs_line = qdev_get_gpio_in(dev, 0); |
| sysbus_connect_irq(busdev, i+1, cs_line); |
| } |
| } |
| |
| microblaze_load_kernel(cpu, ddr_base, ram_size, BINARY_DEVICE_TREE_FILE, |
| machine_cpu_reset); |
| |
| } |
| |
| static QEMUMachine petalogix_ml605_machine = { |
| .name = "petalogix-ml605", |
| .desc = "PetaLogix linux refdesign for xilinx ml605 little endian", |
| .init = petalogix_ml605_init, |
| .is_default = 0, |
| DEFAULT_MACHINE_OPTIONS, |
| }; |
| |
| static void petalogix_ml605_machine_init(void) |
| { |
| qemu_register_machine(&petalogix_ml605_machine); |
| } |
| |
| machine_init(petalogix_ml605_machine_init); |