/* * 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 "sysbus.h" #include "hw.h" #include "net.h" #include "flash.h" #include "sysemu.h" #include "devices.h" #include "boards.h" #include "xilinx.h" #include "blockdev.h" #include "serial.h" #include "exec-memory.h" #include "ssi.h" #include "microblaze_boot.h" #include "microblaze_pic_cpu.h" #include "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. */ 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); eth0 = xilinx_axiethernet_create(&nd_table[0], STREAM_SLAVE(dma), 0x82780000, irq[3], 0x1000, 0x1000); xilinx_axiethernetdma_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 = sysbus_from_qdev(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_no_init(spi, "m25p80"); qdev_prop_set_string(dev, "partname", "n25q128"); qdev_init_nofail(dev); 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 }; static void petalogix_ml605_machine_init(void) { qemu_register_machine(&petalogix_ml605_machine); } machine_init(petalogix_ml605_machine_init);