diff options
Diffstat (limited to 'hw/microblaze/petalogix_ml605_mmu.c')
| -rw-r--r-- | hw/microblaze/petalogix_ml605_mmu.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_ml605_mmu.c new file mode 100644 index 0000000..cfc0220 --- /dev/null +++ b/hw/microblaze/petalogix_ml605_mmu.c @@ -0,0 +1,186 @@ +/* + * 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/flash.h" +#include "sysemu/sysemu.h" +#include "hw/devices.h" +#include "hw/boards.h" +#include "hw/xilinx.h" +#include "sysemu/blockdev.h" +#include "hw/serial.h" +#include "exec/address-spaces.h" +#include "hw/ssi.h" + +#include "hw/microblaze_boot.h" +#include "hw/microblaze_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_no_init(spi, "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, + DEFAULT_MACHINE_OPTIONS, +}; + +static void petalogix_ml605_machine_init(void) +{ + qemu_register_machine(&petalogix_ml605_machine); +} + +machine_init(petalogix_ml605_machine_init); |
