| /* |
| * Model of Xilinx Virtex5 ML507 PPC-440 refdesign. |
| * |
| * Copyright (c) 2010 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 "qemu/osdep.h" |
| #include "qemu/datadir.h" |
| #include "qemu/units.h" |
| #include "exec/page-protection.h" |
| #include "cpu.h" |
| #include "hw/sysbus.h" |
| #include "hw/char/serial-mm.h" |
| #include "hw/block/flash.h" |
| #include "sysemu/sysemu.h" |
| #include "sysemu/reset.h" |
| #include "hw/boards.h" |
| #include "sysemu/device_tree.h" |
| #include "hw/loader.h" |
| #include "elf.h" |
| #include "qapi/error.h" |
| #include "qemu/error-report.h" |
| #include "qemu/option.h" |
| |
| #include "hw/intc/ppc-uic.h" |
| #include "hw/ppc/ppc.h" |
| #include "hw/ppc/ppc4xx.h" |
| #include "hw/qdev-properties.h" |
| |
| #include <libfdt.h> |
| |
| #define EPAPR_MAGIC (0x45504150) |
| #define FLASH_SIZE (16 * MiB) |
| |
| #define INTC_BASEADDR 0x81800000 |
| #define UART16550_BASEADDR 0x83e01003 |
| #define TIMER_BASEADDR 0x83c00000 |
| #define PFLASH_BASEADDR 0xfc000000 |
| |
| #define TIMER_IRQ 3 |
| #define UART16550_IRQ 9 |
| |
| static struct boot_info |
| { |
| uint32_t bootstrap_pc; |
| uint32_t cmdline; |
| uint32_t fdt; |
| uint32_t ima_size; |
| void *vfdt; |
| } boot_info; |
| |
| /* Create reset TLB entries for BookE, spanning the 32bit addr space. */ |
| static void mmubooke_create_initial_mapping(CPUPPCState *env, |
| target_ulong va, |
| hwaddr pa) |
| { |
| ppcemb_tlb_t *tlb = &env->tlb.tlbe[0]; |
| |
| tlb->attr = 0; |
| tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4); |
| tlb->size = 1U << 31; /* up to 0x80000000 */ |
| tlb->EPN = va & TARGET_PAGE_MASK; |
| tlb->RPN = pa & TARGET_PAGE_MASK; |
| tlb->PID = 0; |
| |
| tlb = &env->tlb.tlbe[1]; |
| tlb->attr = 0; |
| tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4); |
| tlb->size = 1U << 31; /* up to 0xffffffff */ |
| tlb->EPN = 0x80000000 & TARGET_PAGE_MASK; |
| tlb->RPN = 0x80000000 & TARGET_PAGE_MASK; |
| tlb->PID = 0; |
| } |
| |
| static PowerPCCPU *ppc440_init_xilinx(const char *cpu_type, uint32_t sysclk) |
| { |
| PowerPCCPU *cpu; |
| CPUPPCState *env; |
| DeviceState *uicdev; |
| SysBusDevice *uicsbd; |
| |
| cpu = POWERPC_CPU(cpu_create(cpu_type)); |
| env = &cpu->env; |
| |
| ppc_booke_timers_init(cpu, sysclk, 0/* no flags */); |
| |
| ppc_dcr_init(env, NULL, NULL); |
| |
| /* interrupt controller */ |
| uicdev = qdev_new(TYPE_PPC_UIC); |
| ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(uicdev), cpu, &error_fatal); |
| object_unref(OBJECT(uicdev)); |
| uicsbd = SYS_BUS_DEVICE(uicdev); |
| sysbus_connect_irq(uicsbd, PPCUIC_OUTPUT_INT, |
| qdev_get_gpio_in(DEVICE(cpu), PPC40x_INPUT_INT)); |
| sysbus_connect_irq(uicsbd, PPCUIC_OUTPUT_CINT, |
| qdev_get_gpio_in(DEVICE(cpu), PPC40x_INPUT_CINT)); |
| |
| /* This board doesn't wire anything up to the inputs of the UIC. */ |
| return cpu; |
| } |
| |
| static void main_cpu_reset(void *opaque) |
| { |
| PowerPCCPU *cpu = opaque; |
| CPUPPCState *env = &cpu->env; |
| struct boot_info *bi = env->load_info; |
| |
| cpu_reset(CPU(cpu)); |
| /* Linux Kernel Parameters (passing device tree): |
| * r3: pointer to the fdt |
| * r4: 0 |
| * r5: 0 |
| * r6: epapr magic |
| * r7: size of IMA in bytes |
| * r8: 0 |
| * r9: 0 |
| */ |
| env->gpr[1] = (16 * MiB) - 8; |
| /* Provide a device-tree. */ |
| env->gpr[3] = bi->fdt; |
| env->nip = bi->bootstrap_pc; |
| |
| /* Create a mapping for the kernel. */ |
| mmubooke_create_initial_mapping(env, 0, 0); |
| env->gpr[6] = tswap32(EPAPR_MAGIC); |
| env->gpr[7] = bi->ima_size; |
| } |
| |
| #define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb" |
| static int xilinx_load_device_tree(MachineState *machine, |
| hwaddr addr, |
| hwaddr initrd_base, |
| hwaddr initrd_size) |
| { |
| char *path; |
| int fdt_size; |
| void *fdt = NULL; |
| int r; |
| const char *dtb_filename; |
| |
| dtb_filename = machine->dtb; |
| if (dtb_filename) { |
| fdt = load_device_tree(dtb_filename, &fdt_size); |
| if (!fdt) { |
| error_report("Error while loading device tree file '%s'", |
| dtb_filename); |
| } |
| } else { |
| /* Try the local "ppc.dtb" override. */ |
| fdt = load_device_tree("ppc.dtb", &fdt_size); |
| if (!fdt) { |
| path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
| if (path) { |
| fdt = load_device_tree(path, &fdt_size); |
| g_free(path); |
| } |
| } |
| } |
| if (!fdt) { |
| return 0; |
| } |
| |
| r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start", |
| initrd_base); |
| if (r < 0) { |
| error_report("couldn't set /chosen/linux,initrd-start"); |
| } |
| |
| r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end", |
| (initrd_base + initrd_size)); |
| if (r < 0) { |
| error_report("couldn't set /chosen/linux,initrd-end"); |
| } |
| |
| r = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", |
| machine->kernel_cmdline); |
| if (r < 0) |
| fprintf(stderr, "couldn't set /chosen/bootargs\n"); |
| cpu_physical_memory_write(addr, fdt, fdt_size); |
| |
| /* Set machine->fdt for 'dumpdtb' QMP/HMP command */ |
| machine->fdt = fdt; |
| |
| return fdt_size; |
| } |
| |
| static void virtex_init(MachineState *machine) |
| { |
| const char *kernel_filename = machine->kernel_filename; |
| hwaddr initrd_base = 0; |
| int initrd_size = 0; |
| MemoryRegion *address_space_mem = get_system_memory(); |
| DeviceState *dev; |
| PowerPCCPU *cpu; |
| CPUPPCState *env; |
| hwaddr ram_base = 0; |
| DriveInfo *dinfo; |
| qemu_irq irq[32], cpu_irq; |
| int kernel_size; |
| int i; |
| |
| /* init CPUs */ |
| cpu = ppc440_init_xilinx(machine->cpu_type, 400000000); |
| env = &cpu->env; |
| |
| if (env->mmu_model != POWERPC_MMU_BOOKE) { |
| error_report("MMU model %i not supported by this machine", |
| env->mmu_model); |
| exit(1); |
| } |
| |
| qemu_register_reset(main_cpu_reset, cpu); |
| |
| memory_region_add_subregion(address_space_mem, ram_base, machine->ram); |
| |
| dinfo = drive_get(IF_PFLASH, 0, 0); |
| pflash_cfi01_register(PFLASH_BASEADDR, "virtex.flash", FLASH_SIZE, |
| dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, |
| 64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1); |
| |
| cpu_irq = qdev_get_gpio_in(DEVICE(cpu), PPC40x_INPUT_INT); |
| dev = qdev_new("xlnx.xps-intc"); |
| qdev_prop_set_uint32(dev, "kind-of-intr", 0); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); |
| sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq); |
| for (i = 0; i < 32; i++) { |
| irq[i] = qdev_get_gpio_in(dev, i); |
| } |
| |
| serial_mm_init(address_space_mem, UART16550_BASEADDR, 2, irq[UART16550_IRQ], |
| 115200, serial_hd(0), DEVICE_LITTLE_ENDIAN); |
| |
| /* 2 timers at irq 2 @ 62 Mhz. */ |
| dev = qdev_new("xlnx.xps-timer"); |
| qdev_prop_set_uint32(dev, "one-timer-only", 0); |
| qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR); |
| sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]); |
| |
| if (kernel_filename) { |
| uint64_t entry, high; |
| hwaddr boot_offset; |
| |
| /* Boots a kernel elf binary. */ |
| kernel_size = load_elf(kernel_filename, NULL, NULL, NULL, |
| &entry, NULL, &high, NULL, 1, PPC_ELF_MACHINE, |
| 0, 0); |
| boot_info.bootstrap_pc = entry & 0x00ffffff; |
| |
| if (kernel_size < 0) { |
| boot_offset = 0x1200000; |
| /* If we failed loading ELF's try a raw image. */ |
| kernel_size = load_image_targphys(kernel_filename, |
| boot_offset, |
| machine->ram_size); |
| boot_info.bootstrap_pc = boot_offset; |
| high = boot_info.bootstrap_pc + kernel_size + 8192; |
| } |
| |
| boot_info.ima_size = kernel_size; |
| |
| /* Load initrd. */ |
| if (machine->initrd_filename) { |
| initrd_base = high = ROUND_UP(high, 4); |
| initrd_size = load_image_targphys(machine->initrd_filename, |
| high, machine->ram_size - high); |
| |
| if (initrd_size < 0) { |
| error_report("couldn't load ram disk '%s'", |
| machine->initrd_filename); |
| exit(1); |
| } |
| high = ROUND_UP(high + initrd_size, 4); |
| } |
| |
| /* Provide a device-tree. */ |
| boot_info.fdt = high + (8192 * 2); |
| boot_info.fdt &= ~8191; |
| |
| xilinx_load_device_tree(machine, boot_info.fdt, |
| initrd_base, initrd_size); |
| } |
| env->load_info = &boot_info; |
| } |
| |
| static void virtex_machine_init(MachineClass *mc) |
| { |
| mc->desc = "Xilinx Virtex ML507 reference design"; |
| mc->init = virtex_init; |
| mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("440-xilinx"); |
| mc->default_ram_id = "ram"; |
| } |
| |
| DEFINE_MACHINE("virtex-ml507", virtex_machine_init) |
