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 "qemu/osdep.h" 27 #include "qemu/units.h" 28 #include "qapi/error.h" 29 #include "cpu.h" 30 #include "hw/sysbus.h" 31 #include "net/net.h" 32 #include "hw/block/flash.h" 33 #include "sysemu/sysemu.h" 34 #include "hw/boards.h" 35 #include "hw/misc/unimp.h" 36 #include "exec/address-spaces.h" 37 #include "hw/char/xilinx_uartlite.h" 38 39 #include "boot.h" 40 41 #define LMB_BRAM_SIZE (128 * KiB) 42 #define FLASH_SIZE (16 * MiB) 43 44 #define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb" 45 46 #define MEMORY_BASEADDR 0x90000000 47 #define FLASH_BASEADDR 0xa0000000 48 #define GPIO_BASEADDR 0x81400000 49 #define INTC_BASEADDR 0x81800000 50 #define TIMER_BASEADDR 0x83c00000 51 #define UARTLITE_BASEADDR 0x84000000 52 #define ETHLITE_BASEADDR 0x81000000 53 54 #define TIMER_IRQ 0 55 #define ETHLITE_IRQ 1 56 #define UARTLITE_IRQ 3 57 58 static void 59 petalogix_s3adsp1800_init(MachineState *machine) 60 { 61 ram_addr_t ram_size = machine->ram_size; 62 DeviceState *dev; 63 MicroBlazeCPU *cpu; 64 DriveInfo *dinfo; 65 int i; 66 hwaddr ddr_base = MEMORY_BASEADDR; 67 MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1); 68 MemoryRegion *phys_ram = g_new(MemoryRegion, 1); 69 qemu_irq irq[32]; 70 MemoryRegion *sysmem = get_system_memory(); 71 72 cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU)); 73 object_property_set_str(OBJECT(cpu), "version", "7.10.d", &error_abort); 74 qdev_realize(DEVICE(cpu), NULL, &error_abort); 75 76 /* Attach emulated BRAM through the LMB. */ 77 memory_region_init_ram(phys_lmb_bram, NULL, 78 "petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE, 79 &error_fatal); 80 memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram); 81 82 memory_region_init_ram(phys_ram, NULL, "petalogix_s3adsp1800.ram", 83 ram_size, &error_fatal); 84 memory_region_add_subregion(sysmem, ddr_base, phys_ram); 85 86 dinfo = drive_get(IF_PFLASH, 0, 0); 87 pflash_cfi01_register(FLASH_BASEADDR, 88 "petalogix_s3adsp1800.flash", FLASH_SIZE, 89 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, 90 64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1); 91 92 dev = qdev_new("xlnx.xps-intc"); 93 qdev_prop_set_uint32(dev, "kind-of-intr", 94 1 << ETHLITE_IRQ | 1 << UARTLITE_IRQ); 95 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 96 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); 97 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, 98 qdev_get_gpio_in(DEVICE(cpu), MB_CPU_IRQ)); 99 for (i = 0; i < 32; i++) { 100 irq[i] = qdev_get_gpio_in(dev, i); 101 } 102 103 xilinx_uartlite_create(UARTLITE_BASEADDR, irq[UARTLITE_IRQ], 104 serial_hd(0)); 105 106 /* 2 timers at irq 2 @ 62 Mhz. */ 107 dev = qdev_new("xlnx.xps-timer"); 108 qdev_prop_set_uint32(dev, "one-timer-only", 0); 109 qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); 110 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 111 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR); 112 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]); 113 114 qemu_check_nic_model(&nd_table[0], "xlnx.xps-ethernetlite"); 115 dev = qdev_new("xlnx.xps-ethernetlite"); 116 qdev_set_nic_properties(dev, &nd_table[0]); 117 qdev_prop_set_uint32(dev, "tx-ping-pong", 0); 118 qdev_prop_set_uint32(dev, "rx-ping-pong", 0); 119 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); 120 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, ETHLITE_BASEADDR); 121 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[ETHLITE_IRQ]); 122 123 create_unimplemented_device("gpio", GPIO_BASEADDR, 0x10000); 124 125 microblaze_load_kernel(cpu, ddr_base, ram_size, 126 machine->initrd_filename, 127 BINARY_DEVICE_TREE_FILE, 128 NULL); 129 } 130 131 static void petalogix_s3adsp1800_machine_init(MachineClass *mc) 132 { 133 mc->desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800"; 134 mc->init = petalogix_s3adsp1800_init; 135 mc->is_default = true; 136 } 137 138 DEFINE_MACHINE("petalogix-s3adsp1800", petalogix_s3adsp1800_machine_init) 139