55b3e0c2f8
Create a separate child object to proxy the stream slave connection. This is setup for future work where a second stream slave connection is needed. The new child object is created at qdev init time and is linked back to the parent (the ethernet device itself) automatically. Stream slave masters differentiate which slave connection they are connected to by linking to the proxy object rather than the parent. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
191 lines
6.4 KiB
C
191 lines
6.4 KiB
C
/*
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* Model of Petalogix linux reference design targeting Xilinx Spartan ml605
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* board.
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*
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* Copyright (c) 2011 Michal Simek <monstr@monstr.eu>
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* Copyright (c) 2011 PetaLogix
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* Copyright (c) 2009 Edgar E. Iglesias.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/sysbus.h"
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#include "hw/hw.h"
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#include "net/net.h"
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#include "hw/block/flash.h"
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#include "sysemu/sysemu.h"
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#include "hw/devices.h"
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#include "hw/boards.h"
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#include "hw/xilinx.h"
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#include "sysemu/blockdev.h"
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#include "hw/char/serial.h"
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#include "exec/address-spaces.h"
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#include "hw/ssi.h"
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#include "boot.h"
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#include "pic_cpu.h"
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#include "hw/stream.h"
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#define LMB_BRAM_SIZE (128 * 1024)
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#define FLASH_SIZE (32 * 1024 * 1024)
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#define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb"
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#define NUM_SPI_FLASHES 4
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#define MEMORY_BASEADDR 0x50000000
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#define FLASH_BASEADDR 0x86000000
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#define INTC_BASEADDR 0x81800000
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#define TIMER_BASEADDR 0x83c00000
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#define UART16550_BASEADDR 0x83e00000
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#define AXIENET_BASEADDR 0x82780000
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#define AXIDMA_BASEADDR 0x84600000
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static void machine_cpu_reset(MicroBlazeCPU *cpu)
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{
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CPUMBState *env = &cpu->env;
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env->pvr.regs[10] = 0x0e000000; /* virtex 6 */
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/* setup pvr to match kernel setting */
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env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK;
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env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI;
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env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8);
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env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK;
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env->pvr.regs[4] = 0xc56b8000;
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env->pvr.regs[5] = 0xc56be000;
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}
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static void
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petalogix_ml605_init(QEMUMachineInitArgs *args)
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{
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ram_addr_t ram_size = args->ram_size;
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const char *cpu_model = args->cpu_model;
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MemoryRegion *address_space_mem = get_system_memory();
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DeviceState *dev, *dma, *eth0;
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Object *peer;
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MicroBlazeCPU *cpu;
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SysBusDevice *busdev;
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CPUMBState *env;
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DriveInfo *dinfo;
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int i;
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hwaddr ddr_base = MEMORY_BASEADDR;
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MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
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MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
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qemu_irq irq[32], *cpu_irq;
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/* init CPUs */
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if (cpu_model == NULL) {
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cpu_model = "microblaze";
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}
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cpu = cpu_mb_init(cpu_model);
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env = &cpu->env;
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/* Attach emulated BRAM through the LMB. */
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memory_region_init_ram(phys_lmb_bram, "petalogix_ml605.lmb_bram",
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LMB_BRAM_SIZE);
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vmstate_register_ram_global(phys_lmb_bram);
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memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);
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memory_region_init_ram(phys_ram, "petalogix_ml605.ram", ram_size);
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vmstate_register_ram_global(phys_ram);
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memory_region_add_subregion(address_space_mem, ddr_base, phys_ram);
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dinfo = drive_get(IF_PFLASH, 0, 0);
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/* 5th parameter 2 means bank-width
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* 10th paremeter 0 means little-endian */
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pflash_cfi01_register(FLASH_BASEADDR,
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NULL, "petalogix_ml605.flash", FLASH_SIZE,
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dinfo ? dinfo->bdrv : NULL, (64 * 1024),
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FLASH_SIZE >> 16,
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2, 0x89, 0x18, 0x0000, 0x0, 0);
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cpu_irq = microblaze_pic_init_cpu(env);
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dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4);
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for (i = 0; i < 32; i++) {
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irq[i] = qdev_get_gpio_in(dev, i);
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}
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serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2,
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irq[5], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN);
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/* 2 timers at irq 2 @ 100 Mhz. */
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xilinx_timer_create(TIMER_BASEADDR, irq[2], 0, 100 * 1000000);
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/* axi ethernet and dma initialization. */
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qemu_check_nic_model(&nd_table[0], "xlnx.axi-ethernet");
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eth0 = qdev_create(NULL, "xlnx.axi-ethernet");
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dma = qdev_create(NULL, "xlnx.axi-dma");
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/* FIXME: attach to the sysbus instead */
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object_property_add_child(qdev_get_machine(), "xilinx-eth", OBJECT(eth0),
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NULL);
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object_property_add_child(qdev_get_machine(), "xilinx-dma", OBJECT(dma),
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NULL);
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xilinx_axiethernet_init(eth0, &nd_table[0], STREAM_SLAVE(dma),
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0x82780000, irq[3], 0x1000, 0x1000);
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peer = object_property_get_link(OBJECT(eth0),
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"axistream-connected-target", NULL);
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xilinx_axidma_init(dma, STREAM_SLAVE(peer), 0x84600000, irq[1], irq[0],
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100 * 1000000);
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{
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SSIBus *spi;
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dev = qdev_create(NULL, "xlnx.xps-spi");
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qdev_prop_set_uint8(dev, "num-ss-bits", NUM_SPI_FLASHES);
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qdev_init_nofail(dev);
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busdev = SYS_BUS_DEVICE(dev);
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sysbus_mmio_map(busdev, 0, 0x40a00000);
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sysbus_connect_irq(busdev, 0, irq[4]);
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spi = (SSIBus *)qdev_get_child_bus(dev, "spi");
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for (i = 0; i < NUM_SPI_FLASHES; i++) {
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qemu_irq cs_line;
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dev = ssi_create_slave(spi, "n25q128");
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cs_line = qdev_get_gpio_in(dev, 0);
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sysbus_connect_irq(busdev, i+1, cs_line);
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}
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}
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microblaze_load_kernel(cpu, ddr_base, ram_size, BINARY_DEVICE_TREE_FILE,
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machine_cpu_reset);
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}
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static QEMUMachine petalogix_ml605_machine = {
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.name = "petalogix-ml605",
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.desc = "PetaLogix linux refdesign for xilinx ml605 little endian",
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.init = petalogix_ml605_init,
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.is_default = 0,
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DEFAULT_MACHINE_OPTIONS,
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};
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static void petalogix_ml605_machine_init(void)
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{
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qemu_register_machine(&petalogix_ml605_machine);
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}
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machine_init(petalogix_ml605_machine_init);
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