1 /* 2 * Xilinx Zynq Baseboard System emulation. 3 * 4 * Copyright (c) 2010 Xilinx. 5 * Copyright (c) 2012 Peter A.G. Crosthwaite (peter.croshtwaite@petalogix.com) 6 * Copyright (c) 2012 Petalogix Pty Ltd. 7 * Written by Haibing Ma 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * as published by the Free Software Foundation; either version 12 * 2 of the License, or (at your option) any later version. 13 * 14 * You should have received a copy of the GNU General Public License along 15 * with this program; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #include "hw/sysbus.h" 19 #include "hw/arm/arm.h" 20 #include "net/net.h" 21 #include "exec/address-spaces.h" 22 #include "sysemu/sysemu.h" 23 #include "hw/boards.h" 24 #include "hw/block/flash.h" 25 #include "sysemu/block-backend.h" 26 #include "hw/loader.h" 27 #include "hw/ssi.h" 28 #include "qemu/error-report.h" 29 30 #define NUM_SPI_FLASHES 4 31 #define NUM_QSPI_FLASHES 2 32 #define NUM_QSPI_BUSSES 2 33 34 #define FLASH_SIZE (64 * 1024 * 1024) 35 #define FLASH_SECTOR_SIZE (128 * 1024) 36 37 #define IRQ_OFFSET 32 /* pic interrupts start from index 32 */ 38 39 #define MPCORE_PERIPHBASE 0xF8F00000 40 #define ZYNQ_BOARD_MIDR 0x413FC090 41 42 static const int dma_irqs[8] = { 43 46, 47, 48, 49, 72, 73, 74, 75 44 }; 45 46 static struct arm_boot_info zynq_binfo = {}; 47 48 static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq) 49 { 50 DeviceState *dev; 51 SysBusDevice *s; 52 53 dev = qdev_create(NULL, "cadence_gem"); 54 if (nd->used) { 55 qemu_check_nic_model(nd, "cadence_gem"); 56 qdev_set_nic_properties(dev, nd); 57 } 58 qdev_init_nofail(dev); 59 s = SYS_BUS_DEVICE(dev); 60 sysbus_mmio_map(s, 0, base); 61 sysbus_connect_irq(s, 0, irq); 62 } 63 64 static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq, 65 bool is_qspi) 66 { 67 DeviceState *dev; 68 SysBusDevice *busdev; 69 SSIBus *spi; 70 DeviceState *flash_dev; 71 int i, j; 72 int num_busses = is_qspi ? NUM_QSPI_BUSSES : 1; 73 int num_ss = is_qspi ? NUM_QSPI_FLASHES : NUM_SPI_FLASHES; 74 75 dev = qdev_create(NULL, is_qspi ? "xlnx.ps7-qspi" : "xlnx.ps7-spi"); 76 qdev_prop_set_uint8(dev, "num-txrx-bytes", is_qspi ? 4 : 1); 77 qdev_prop_set_uint8(dev, "num-ss-bits", num_ss); 78 qdev_prop_set_uint8(dev, "num-busses", num_busses); 79 qdev_init_nofail(dev); 80 busdev = SYS_BUS_DEVICE(dev); 81 sysbus_mmio_map(busdev, 0, base_addr); 82 if (is_qspi) { 83 sysbus_mmio_map(busdev, 1, 0xFC000000); 84 } 85 sysbus_connect_irq(busdev, 0, irq); 86 87 for (i = 0; i < num_busses; ++i) { 88 char bus_name[16]; 89 qemu_irq cs_line; 90 91 snprintf(bus_name, 16, "spi%d", i); 92 spi = (SSIBus *)qdev_get_child_bus(dev, bus_name); 93 94 for (j = 0; j < num_ss; ++j) { 95 flash_dev = ssi_create_slave(spi, "n25q128"); 96 97 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0); 98 sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line); 99 } 100 } 101 102 } 103 104 static void zynq_init(MachineState *machine) 105 { 106 ram_addr_t ram_size = machine->ram_size; 107 const char *cpu_model = machine->cpu_model; 108 const char *kernel_filename = machine->kernel_filename; 109 const char *kernel_cmdline = machine->kernel_cmdline; 110 const char *initrd_filename = machine->initrd_filename; 111 ObjectClass *cpu_oc; 112 ARMCPU *cpu; 113 MemoryRegion *address_space_mem = get_system_memory(); 114 MemoryRegion *ext_ram = g_new(MemoryRegion, 1); 115 MemoryRegion *ocm_ram = g_new(MemoryRegion, 1); 116 DeviceState *dev; 117 SysBusDevice *busdev; 118 qemu_irq pic[64]; 119 Error *err = NULL; 120 int n; 121 122 if (!cpu_model) { 123 cpu_model = "cortex-a9"; 124 } 125 cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model); 126 127 cpu = ARM_CPU(object_new(object_class_get_name(cpu_oc))); 128 129 /* By default A9 CPUs have EL3 enabled. This board does not 130 * currently support EL3 so the CPU EL3 property is disabled before 131 * realization. 132 */ 133 if (object_property_find(OBJECT(cpu), "has_el3", NULL)) { 134 object_property_set_bool(OBJECT(cpu), false, "has_el3", &err); 135 if (err) { 136 error_report_err(err); 137 exit(1); 138 } 139 } 140 141 object_property_set_int(OBJECT(cpu), ZYNQ_BOARD_MIDR, "midr", &err); 142 if (err) { 143 error_report_err(err); 144 exit(1); 145 } 146 147 object_property_set_int(OBJECT(cpu), MPCORE_PERIPHBASE, "reset-cbar", &err); 148 if (err) { 149 error_report_err(err); 150 exit(1); 151 } 152 object_property_set_bool(OBJECT(cpu), true, "realized", &err); 153 if (err) { 154 error_report_err(err); 155 exit(1); 156 } 157 158 /* max 2GB ram */ 159 if (ram_size > 0x80000000) { 160 ram_size = 0x80000000; 161 } 162 163 /* DDR remapped to address zero. */ 164 memory_region_allocate_system_memory(ext_ram, NULL, "zynq.ext_ram", 165 ram_size); 166 memory_region_add_subregion(address_space_mem, 0, ext_ram); 167 168 /* 256K of on-chip memory */ 169 memory_region_init_ram(ocm_ram, NULL, "zynq.ocm_ram", 256 << 10, 170 &error_abort); 171 vmstate_register_ram_global(ocm_ram); 172 memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram); 173 174 DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0); 175 176 /* AMD */ 177 pflash_cfi02_register(0xe2000000, NULL, "zynq.pflash", FLASH_SIZE, 178 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, 179 FLASH_SECTOR_SIZE, 180 FLASH_SIZE/FLASH_SECTOR_SIZE, 1, 181 1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa, 182 0); 183 184 dev = qdev_create(NULL, "xilinx,zynq_slcr"); 185 qdev_init_nofail(dev); 186 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8000000); 187 188 dev = qdev_create(NULL, "a9mpcore_priv"); 189 qdev_prop_set_uint32(dev, "num-cpu", 1); 190 qdev_init_nofail(dev); 191 busdev = SYS_BUS_DEVICE(dev); 192 sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE); 193 sysbus_connect_irq(busdev, 0, 194 qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ)); 195 196 for (n = 0; n < 64; n++) { 197 pic[n] = qdev_get_gpio_in(dev, n); 198 } 199 200 zynq_init_spi_flashes(0xE0006000, pic[58-IRQ_OFFSET], false); 201 zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false); 202 zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true); 203 204 sysbus_create_simple("xlnx,ps7-usb", 0xE0002000, pic[53-IRQ_OFFSET]); 205 sysbus_create_simple("xlnx,ps7-usb", 0xE0003000, pic[76-IRQ_OFFSET]); 206 207 sysbus_create_simple("cadence_uart", 0xE0000000, pic[59-IRQ_OFFSET]); 208 sysbus_create_simple("cadence_uart", 0xE0001000, pic[82-IRQ_OFFSET]); 209 210 sysbus_create_varargs("cadence_ttc", 0xF8001000, 211 pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL); 212 sysbus_create_varargs("cadence_ttc", 0xF8002000, 213 pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL); 214 215 gem_init(&nd_table[0], 0xE000B000, pic[54-IRQ_OFFSET]); 216 gem_init(&nd_table[1], 0xE000C000, pic[77-IRQ_OFFSET]); 217 218 dev = qdev_create(NULL, "generic-sdhci"); 219 qdev_init_nofail(dev); 220 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0100000); 221 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[56-IRQ_OFFSET]); 222 223 dev = qdev_create(NULL, "generic-sdhci"); 224 qdev_init_nofail(dev); 225 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0101000); 226 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[79-IRQ_OFFSET]); 227 228 dev = qdev_create(NULL, "pl330"); 229 qdev_prop_set_uint8(dev, "num_chnls", 8); 230 qdev_prop_set_uint8(dev, "num_periph_req", 4); 231 qdev_prop_set_uint8(dev, "num_events", 16); 232 233 qdev_prop_set_uint8(dev, "data_width", 64); 234 qdev_prop_set_uint8(dev, "wr_cap", 8); 235 qdev_prop_set_uint8(dev, "wr_q_dep", 16); 236 qdev_prop_set_uint8(dev, "rd_cap", 8); 237 qdev_prop_set_uint8(dev, "rd_q_dep", 16); 238 qdev_prop_set_uint16(dev, "data_buffer_dep", 256); 239 240 qdev_init_nofail(dev); 241 busdev = SYS_BUS_DEVICE(dev); 242 sysbus_mmio_map(busdev, 0, 0xF8003000); 243 sysbus_connect_irq(busdev, 0, pic[45-IRQ_OFFSET]); /* abort irq line */ 244 for (n = 0; n < 8; ++n) { /* event irqs */ 245 sysbus_connect_irq(busdev, n + 1, pic[dma_irqs[n] - IRQ_OFFSET]); 246 } 247 248 zynq_binfo.ram_size = ram_size; 249 zynq_binfo.kernel_filename = kernel_filename; 250 zynq_binfo.kernel_cmdline = kernel_cmdline; 251 zynq_binfo.initrd_filename = initrd_filename; 252 zynq_binfo.nb_cpus = 1; 253 zynq_binfo.board_id = 0xd32; 254 zynq_binfo.loader_start = 0; 255 arm_load_kernel(ARM_CPU(first_cpu), &zynq_binfo); 256 } 257 258 static QEMUMachine zynq_machine = { 259 .name = "xilinx-zynq-a9", 260 .desc = "Xilinx Zynq Platform Baseboard for Cortex-A9", 261 .init = zynq_init, 262 .block_default_type = IF_SCSI, 263 .max_cpus = 1, 264 .no_sdcard = 1, 265 }; 266 267 static void zynq_machine_init(void) 268 { 269 qemu_register_machine(&zynq_machine); 270 } 271 272 machine_init(zynq_machine_init); 273