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/blockdev.h" 26 #include "hw/loader.h" 27 #include "hw/ssi.h" 28 29 #define NUM_SPI_FLASHES 4 30 #define NUM_QSPI_FLASHES 2 31 #define NUM_QSPI_BUSSES 2 32 33 #define FLASH_SIZE (64 * 1024 * 1024) 34 #define FLASH_SECTOR_SIZE (128 * 1024) 35 36 #define IRQ_OFFSET 32 /* pic interrupts start from index 32 */ 37 38 static const int dma_irqs[8] = { 39 46, 47, 48, 49, 72, 73, 74, 75 40 }; 41 42 static struct arm_boot_info zynq_binfo = {}; 43 44 static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq) 45 { 46 DeviceState *dev; 47 SysBusDevice *s; 48 49 qemu_check_nic_model(nd, "cadence_gem"); 50 dev = qdev_create(NULL, "cadence_gem"); 51 qdev_set_nic_properties(dev, nd); 52 qdev_init_nofail(dev); 53 s = SYS_BUS_DEVICE(dev); 54 sysbus_mmio_map(s, 0, base); 55 sysbus_connect_irq(s, 0, irq); 56 } 57 58 static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq, 59 bool is_qspi) 60 { 61 DeviceState *dev; 62 SysBusDevice *busdev; 63 SSIBus *spi; 64 DeviceState *flash_dev; 65 int i, j; 66 int num_busses = is_qspi ? NUM_QSPI_BUSSES : 1; 67 int num_ss = is_qspi ? NUM_QSPI_FLASHES : NUM_SPI_FLASHES; 68 69 dev = qdev_create(NULL, is_qspi ? "xlnx.ps7-qspi" : "xlnx.ps7-spi"); 70 qdev_prop_set_uint8(dev, "num-txrx-bytes", is_qspi ? 4 : 1); 71 qdev_prop_set_uint8(dev, "num-ss-bits", num_ss); 72 qdev_prop_set_uint8(dev, "num-busses", num_busses); 73 qdev_init_nofail(dev); 74 busdev = SYS_BUS_DEVICE(dev); 75 sysbus_mmio_map(busdev, 0, base_addr); 76 if (is_qspi) { 77 sysbus_mmio_map(busdev, 1, 0xFC000000); 78 } 79 sysbus_connect_irq(busdev, 0, irq); 80 81 for (i = 0; i < num_busses; ++i) { 82 char bus_name[16]; 83 qemu_irq cs_line; 84 85 snprintf(bus_name, 16, "spi%d", i); 86 spi = (SSIBus *)qdev_get_child_bus(dev, bus_name); 87 88 for (j = 0; j < num_ss; ++j) { 89 flash_dev = ssi_create_slave(spi, "n25q128"); 90 91 cs_line = qdev_get_gpio_in(flash_dev, 0); 92 sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line); 93 } 94 } 95 96 } 97 98 static void zynq_init(QEMUMachineInitArgs *args) 99 { 100 ram_addr_t ram_size = args->ram_size; 101 const char *cpu_model = args->cpu_model; 102 const char *kernel_filename = args->kernel_filename; 103 const char *kernel_cmdline = args->kernel_cmdline; 104 const char *initrd_filename = args->initrd_filename; 105 ARMCPU *cpu; 106 MemoryRegion *address_space_mem = get_system_memory(); 107 MemoryRegion *ext_ram = g_new(MemoryRegion, 1); 108 MemoryRegion *ocm_ram = g_new(MemoryRegion, 1); 109 DeviceState *dev; 110 SysBusDevice *busdev; 111 qemu_irq *irqp; 112 qemu_irq pic[64]; 113 NICInfo *nd; 114 int n; 115 qemu_irq cpu_irq; 116 117 if (!cpu_model) { 118 cpu_model = "cortex-a9"; 119 } 120 121 cpu = cpu_arm_init(cpu_model); 122 if (!cpu) { 123 fprintf(stderr, "Unable to find CPU definition\n"); 124 exit(1); 125 } 126 irqp = arm_pic_init_cpu(cpu); 127 cpu_irq = irqp[ARM_PIC_CPU_IRQ]; 128 129 /* max 2GB ram */ 130 if (ram_size > 0x80000000) { 131 ram_size = 0x80000000; 132 } 133 134 /* DDR remapped to address zero. */ 135 memory_region_init_ram(ext_ram, NULL, "zynq.ext_ram", ram_size); 136 vmstate_register_ram_global(ext_ram); 137 memory_region_add_subregion(address_space_mem, 0, ext_ram); 138 139 /* 256K of on-chip memory */ 140 memory_region_init_ram(ocm_ram, NULL, "zynq.ocm_ram", 256 << 10); 141 vmstate_register_ram_global(ocm_ram); 142 memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram); 143 144 DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0); 145 146 /* AMD */ 147 pflash_cfi02_register(0xe2000000, NULL, "zynq.pflash", FLASH_SIZE, 148 dinfo ? dinfo->bdrv : NULL, FLASH_SECTOR_SIZE, 149 FLASH_SIZE/FLASH_SECTOR_SIZE, 1, 150 1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa, 151 0); 152 153 dev = qdev_create(NULL, "xilinx,zynq_slcr"); 154 qdev_init_nofail(dev); 155 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8000000); 156 157 dev = qdev_create(NULL, "a9mpcore_priv"); 158 qdev_prop_set_uint32(dev, "num-cpu", 1); 159 qdev_init_nofail(dev); 160 busdev = SYS_BUS_DEVICE(dev); 161 sysbus_mmio_map(busdev, 0, 0xF8F00000); 162 sysbus_connect_irq(busdev, 0, cpu_irq); 163 164 for (n = 0; n < 64; n++) { 165 pic[n] = qdev_get_gpio_in(dev, n); 166 } 167 168 zynq_init_spi_flashes(0xE0006000, pic[58-IRQ_OFFSET], false); 169 zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false); 170 zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true); 171 172 sysbus_create_simple("xlnx,ps7-usb", 0xE0002000, pic[53-IRQ_OFFSET]); 173 sysbus_create_simple("xlnx,ps7-usb", 0xE0003000, pic[76-IRQ_OFFSET]); 174 175 sysbus_create_simple("cadence_uart", 0xE0000000, pic[59-IRQ_OFFSET]); 176 sysbus_create_simple("cadence_uart", 0xE0001000, pic[82-IRQ_OFFSET]); 177 178 sysbus_create_varargs("cadence_ttc", 0xF8001000, 179 pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL); 180 sysbus_create_varargs("cadence_ttc", 0xF8002000, 181 pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL); 182 183 for (n = 0; n < nb_nics; n++) { 184 nd = &nd_table[n]; 185 if (n == 0) { 186 gem_init(nd, 0xE000B000, pic[54-IRQ_OFFSET]); 187 } else if (n == 1) { 188 gem_init(nd, 0xE000C000, pic[77-IRQ_OFFSET]); 189 } 190 } 191 192 dev = qdev_create(NULL, "generic-sdhci"); 193 qdev_init_nofail(dev); 194 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0100000); 195 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[56-IRQ_OFFSET]); 196 197 dev = qdev_create(NULL, "generic-sdhci"); 198 qdev_init_nofail(dev); 199 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0101000); 200 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[79-IRQ_OFFSET]); 201 202 dev = qdev_create(NULL, "pl330"); 203 qdev_prop_set_uint8(dev, "num_chnls", 8); 204 qdev_prop_set_uint8(dev, "num_periph_req", 4); 205 qdev_prop_set_uint8(dev, "num_events", 16); 206 207 qdev_prop_set_uint8(dev, "data_width", 64); 208 qdev_prop_set_uint8(dev, "wr_cap", 8); 209 qdev_prop_set_uint8(dev, "wr_q_dep", 16); 210 qdev_prop_set_uint8(dev, "rd_cap", 8); 211 qdev_prop_set_uint8(dev, "rd_q_dep", 16); 212 qdev_prop_set_uint16(dev, "data_buffer_dep", 256); 213 214 qdev_init_nofail(dev); 215 busdev = SYS_BUS_DEVICE(dev); 216 sysbus_mmio_map(busdev, 0, 0xF8003000); 217 sysbus_connect_irq(busdev, 0, pic[45-IRQ_OFFSET]); /* abort irq line */ 218 for (n = 0; n < 8; ++n) { /* event irqs */ 219 sysbus_connect_irq(busdev, n + 1, pic[dma_irqs[n] - IRQ_OFFSET]); 220 } 221 222 zynq_binfo.ram_size = ram_size; 223 zynq_binfo.kernel_filename = kernel_filename; 224 zynq_binfo.kernel_cmdline = kernel_cmdline; 225 zynq_binfo.initrd_filename = initrd_filename; 226 zynq_binfo.nb_cpus = 1; 227 zynq_binfo.board_id = 0xd32; 228 zynq_binfo.loader_start = 0; 229 arm_load_kernel(ARM_CPU(first_cpu), &zynq_binfo); 230 } 231 232 static QEMUMachine zynq_machine = { 233 .name = "xilinx-zynq-a9", 234 .desc = "Xilinx Zynq Platform Baseboard for Cortex-A9", 235 .init = zynq_init, 236 .block_default_type = IF_SCSI, 237 .max_cpus = 1, 238 .no_sdcard = 1, 239 DEFAULT_MACHINE_OPTIONS, 240 }; 241 242 static void zynq_machine_init(void) 243 { 244 qemu_register_machine(&zynq_machine); 245 } 246 247 machine_init(zynq_machine_init); 248