| /* |
| * Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800 |
| * boards. |
| * |
| * 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 "sysbus.h" |
| #include "hw.h" |
| #include "net/net.h" |
| #include "flash.h" |
| #include "sysemu/sysemu.h" |
| #include "devices.h" |
| #include "boards.h" |
| #include "xilinx.h" |
| #include "sysemu/blockdev.h" |
| #include "exec/address-spaces.h" |
| |
| #include "microblaze_boot.h" |
| #include "microblaze_pic_cpu.h" |
| |
| #define LMB_BRAM_SIZE (128 * 1024) |
| #define FLASH_SIZE (16 * 1024 * 1024) |
| |
| #define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb" |
| |
| #define MEMORY_BASEADDR 0x90000000 |
| #define FLASH_BASEADDR 0xa0000000 |
| #define INTC_BASEADDR 0x81800000 |
| #define TIMER_BASEADDR 0x83c00000 |
| #define UARTLITE_BASEADDR 0x84000000 |
| #define ETHLITE_BASEADDR 0x81000000 |
| |
| static void machine_cpu_reset(MicroBlazeCPU *cpu) |
| { |
| CPUMBState *env = &cpu->env; |
| |
| env->pvr.regs[10] = 0x0c000000; /* spartan 3a dsp family. */ |
| } |
| |
| static void |
| petalogix_s3adsp1800_init(QEMUMachineInitArgs *args) |
| { |
| ram_addr_t ram_size = args->ram_size; |
| const char *cpu_model = args->cpu_model; |
| DeviceState *dev; |
| MicroBlazeCPU *cpu; |
| 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; |
| MemoryRegion *sysmem = get_system_memory(); |
| |
| /* 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_s3adsp1800.lmb_bram", LMB_BRAM_SIZE); |
| vmstate_register_ram_global(phys_lmb_bram); |
| memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram); |
| |
| memory_region_init_ram(phys_ram, "petalogix_s3adsp1800.ram", ram_size); |
| vmstate_register_ram_global(phys_ram); |
| memory_region_add_subregion(sysmem, ddr_base, phys_ram); |
| |
| dinfo = drive_get(IF_PFLASH, 0, 0); |
| pflash_cfi01_register(FLASH_BASEADDR, |
| NULL, "petalogix_s3adsp1800.flash", FLASH_SIZE, |
| dinfo ? dinfo->bdrv : NULL, (64 * 1024), |
| FLASH_SIZE >> 16, |
| 1, 0x89, 0x18, 0x0000, 0x0, 1); |
| |
| cpu_irq = microblaze_pic_init_cpu(env); |
| dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 2); |
| for (i = 0; i < 32; i++) { |
| irq[i] = qdev_get_gpio_in(dev, i); |
| } |
| |
| sysbus_create_simple("xlnx.xps-uartlite", UARTLITE_BASEADDR, irq[3]); |
| /* 2 timers at irq 2 @ 62 Mhz. */ |
| xilinx_timer_create(TIMER_BASEADDR, irq[0], 0, 62 * 1000000); |
| xilinx_ethlite_create(&nd_table[0], ETHLITE_BASEADDR, irq[1], 0, 0); |
| |
| microblaze_load_kernel(cpu, ddr_base, ram_size, |
| BINARY_DEVICE_TREE_FILE, machine_cpu_reset); |
| } |
| |
| static QEMUMachine petalogix_s3adsp1800_machine = { |
| .name = "petalogix-s3adsp1800", |
| .desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800", |
| .init = petalogix_s3adsp1800_init, |
| .is_default = 1 |
| }; |
| |
| static void petalogix_s3adsp1800_machine_init(void) |
| { |
| qemu_register_machine(&petalogix_s3adsp1800_machine); |
| } |
| |
| machine_init(petalogix_s3adsp1800_machine_init); |