1 /* 2 * Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800 3 * boards. 4 * 5 * Copyright (c) 2009 Edgar E. Iglesias. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #include "hw/sysbus.h" 27 #include "hw/hw.h" 28 #include "net/net.h" 29 #include "hw/block/flash.h" 30 #include "sysemu/sysemu.h" 31 #include "hw/devices.h" 32 #include "hw/boards.h" 33 #include "sysemu/block-backend.h" 34 #include "exec/address-spaces.h" 35 36 #include "boot.h" 37 38 #define LMB_BRAM_SIZE (128 * 1024) 39 #define FLASH_SIZE (16 * 1024 * 1024) 40 41 #define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb" 42 43 #define MEMORY_BASEADDR 0x90000000 44 #define FLASH_BASEADDR 0xa0000000 45 #define INTC_BASEADDR 0x81800000 46 #define TIMER_BASEADDR 0x83c00000 47 #define UARTLITE_BASEADDR 0x84000000 48 #define ETHLITE_BASEADDR 0x81000000 49 50 #define TIMER_IRQ 0 51 #define ETHLITE_IRQ 1 52 #define UARTLITE_IRQ 3 53 54 static void 55 petalogix_s3adsp1800_init(MachineState *machine) 56 { 57 ram_addr_t ram_size = machine->ram_size; 58 DeviceState *dev; 59 MicroBlazeCPU *cpu; 60 DriveInfo *dinfo; 61 int i; 62 hwaddr ddr_base = MEMORY_BASEADDR; 63 MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1); 64 MemoryRegion *phys_ram = g_new(MemoryRegion, 1); 65 qemu_irq irq[32]; 66 MemoryRegion *sysmem = get_system_memory(); 67 68 cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU)); 69 object_property_set_bool(OBJECT(cpu), true, "realized", &error_abort); 70 71 /* Attach emulated BRAM through the LMB. */ 72 memory_region_init_ram(phys_lmb_bram, NULL, 73 "petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE, 74 &error_abort); 75 vmstate_register_ram_global(phys_lmb_bram); 76 memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram); 77 78 memory_region_init_ram(phys_ram, NULL, "petalogix_s3adsp1800.ram", 79 ram_size, &error_abort); 80 vmstate_register_ram_global(phys_ram); 81 memory_region_add_subregion(sysmem, ddr_base, phys_ram); 82 83 dinfo = drive_get(IF_PFLASH, 0, 0); 84 pflash_cfi01_register(FLASH_BASEADDR, 85 NULL, "petalogix_s3adsp1800.flash", FLASH_SIZE, 86 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, 87 (64 * 1024), FLASH_SIZE >> 16, 88 1, 0x89, 0x18, 0x0000, 0x0, 1); 89 90 dev = qdev_create(NULL, "xlnx.xps-intc"); 91 qdev_prop_set_uint32(dev, "kind-of-intr", 92 1 << ETHLITE_IRQ | 1 << UARTLITE_IRQ); 93 qdev_init_nofail(dev); 94 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); 95 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, 96 qdev_get_gpio_in(DEVICE(cpu), MB_CPU_IRQ)); 97 for (i = 0; i < 32; i++) { 98 irq[i] = qdev_get_gpio_in(dev, i); 99 } 100 101 sysbus_create_simple("xlnx.xps-uartlite", UARTLITE_BASEADDR, 102 irq[UARTLITE_IRQ]); 103 104 /* 2 timers at irq 2 @ 62 Mhz. */ 105 dev = qdev_create(NULL, "xlnx.xps-timer"); 106 qdev_prop_set_uint32(dev, "one-timer-only", 0); 107 qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); 108 qdev_init_nofail(dev); 109 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR); 110 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]); 111 112 qemu_check_nic_model(&nd_table[0], "xlnx.xps-ethernetlite"); 113 dev = qdev_create(NULL, "xlnx.xps-ethernetlite"); 114 qdev_set_nic_properties(dev, &nd_table[0]); 115 qdev_prop_set_uint32(dev, "tx-ping-pong", 0); 116 qdev_prop_set_uint32(dev, "rx-ping-pong", 0); 117 qdev_init_nofail(dev); 118 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, ETHLITE_BASEADDR); 119 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[ETHLITE_IRQ]); 120 121 microblaze_load_kernel(cpu, ddr_base, ram_size, 122 machine->initrd_filename, 123 BINARY_DEVICE_TREE_FILE, 124 NULL); 125 } 126 127 static QEMUMachine petalogix_s3adsp1800_machine = { 128 .name = "petalogix-s3adsp1800", 129 .desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800", 130 .init = petalogix_s3adsp1800_init, 131 .is_default = 1, 132 }; 133 134 static void petalogix_s3adsp1800_machine_init(void) 135 { 136 qemu_register_machine(&petalogix_s3adsp1800_machine); 137 } 138 139 machine_init(petalogix_s3adsp1800_machine_init); 140