/* * Model of Petalogix linux reference design targeting Xilinx Spartan ml605 * board. * * Copyright (c) 2011 Michal Simek * 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/devices.h" #include "hw/boards.h" #include "sysemu/blockdev.h" #include "hw/char/serial.h" #include "exec/address-spaces.h" #include "hw/ssi.h" #include "boot.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 SPI_BASEADDR 0x40a00000 #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 #define AXIDMA_IRQ1 0 #define AXIDMA_IRQ0 1 #define TIMER_IRQ 2 #define AXIENET_IRQ 3 #define SPI_IRQ 4 #define UART16550_IRQ 5 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; MemoryRegion *address_space_mem = get_system_memory(); DeviceState *dev, *dma, *eth0; Object *ds, *cs; MicroBlazeCPU *cpu; SysBusDevice *busdev; 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]; /* init CPUs */ cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU)); object_property_set_bool(OBJECT(cpu), true, "realized", &error_abort); /* Attach emulated BRAM through the LMB. */ memory_region_init_ram(phys_lmb_bram, NULL, "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, NULL, "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); dev = qdev_create(NULL, "xlnx.xps-intc"); qdev_prop_set_uint32(dev, "kind-of-intr", 1 << TIMER_IRQ); qdev_init_nofail(dev); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(DEVICE(cpu), MB_CPU_IRQ)); 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[UART16550_IRQ], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN); /* 2 timers at irq 2 @ 100 Mhz. */ dev = qdev_create(NULL, "xlnx.xps-timer"); qdev_prop_set_uint32(dev, "one-timer-only", 0); qdev_prop_set_uint32(dev, "clock-frequency", 100 * 1000000); qdev_init_nofail(dev); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR); sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]); /* 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(qdev_get_machine(), "xilinx-eth", OBJECT(eth0), NULL); object_property_add_child(qdev_get_machine(), "xilinx-dma", OBJECT(dma), NULL); ds = object_property_get_link(OBJECT(dma), "axistream-connected-target", NULL); cs = object_property_get_link(OBJECT(dma), "axistream-control-connected-target", NULL); qdev_set_nic_properties(eth0, &nd_table[0]); qdev_prop_set_uint32(eth0, "rxmem", 0x1000); qdev_prop_set_uint32(eth0, "txmem", 0x1000); object_property_set_link(OBJECT(eth0), OBJECT(ds), "axistream-connected", &error_abort); object_property_set_link(OBJECT(eth0), OBJECT(cs), "axistream-control-connected", &error_abort); qdev_init_nofail(eth0); sysbus_mmio_map(SYS_BUS_DEVICE(eth0), 0, AXIENET_BASEADDR); sysbus_connect_irq(SYS_BUS_DEVICE(eth0), 0, irq[AXIENET_IRQ]); ds = object_property_get_link(OBJECT(eth0), "axistream-connected-target", NULL); cs = object_property_get_link(OBJECT(eth0), "axistream-control-connected-target", NULL); qdev_prop_set_uint32(dma, "freqhz", 100 * 1000000); object_property_set_link(OBJECT(dma), OBJECT(ds), "axistream-connected", &error_abort); object_property_set_link(OBJECT(dma), OBJECT(cs), "axistream-control-connected", &error_abort); qdev_init_nofail(dma); sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, AXIDMA_BASEADDR); sysbus_connect_irq(SYS_BUS_DEVICE(dma), 0, irq[AXIDMA_IRQ0]); sysbus_connect_irq(SYS_BUS_DEVICE(dma), 1, irq[AXIDMA_IRQ1]); { 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, SPI_BASEADDR); sysbus_connect_irq(busdev, 0, irq[SPI_IRQ]); 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, args->initrd_filename, 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);