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5f072e1f30
This should help us to: - More easily add or remove machine initialization arguments without having to change every single machine init function; - More easily make mechanical changes involving the machine init functions in the future; - Let machine initialization forward the init arguments to other functions more easily. This change was half-mechanical process: first the struct was added with the local ram_size, boot_device, kernel_*, initrd_*, and cpu_model local variable initialization to all functions. Then the compiler helped me locate the local variables that are unused, so they could be removed. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
185 lines
6.2 KiB
C
185 lines
6.2 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 "sysbus.h"
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#include "hw.h"
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#include "net.h"
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#include "flash.h"
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#include "sysemu.h"
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#include "devices.h"
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#include "boards.h"
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#include "xilinx.h"
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#include "blockdev.h"
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#include "pc.h"
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#include "exec-memory.h"
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#include "ssi.h"
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#include "microblaze_boot.h"
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#include "microblaze_pic_cpu.h"
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#include "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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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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target_phys_addr_t 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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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(container_get(qdev_get_machine(), "/unattached"),
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"xilinx-dma", OBJECT(dma), NULL);
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eth0 = xilinx_axiethernet_create(&nd_table[0], STREAM_SLAVE(dma),
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0x82780000, irq[3], 0x1000, 0x1000);
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xilinx_axiethernetdma_init(dma, STREAM_SLAVE(eth0),
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0x84600000, irq[1], irq[0], 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 = sysbus_from_qdev(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_no_init(spi, "m25p80");
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qdev_prop_set_string(dev, "partname", "n25q128");
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qdev_init_nofail(dev);
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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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};
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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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