| /* |
| * Xilinx Zynq Baseboard System emulation. |
| * |
| * Copyright (c) 2010 Xilinx. |
| * Copyright (c) 2012 Peter A.G. Crosthwaite (peter.croshtwaite@petalogix.com) |
| * Copyright (c) 2012 Petalogix Pty Ltd. |
| * Written by Haibing Ma |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qapi/error.h" |
| #include "qemu-common.h" |
| #include "cpu.h" |
| #include "hw/sysbus.h" |
| #include "hw/arm/arm.h" |
| #include "net/net.h" |
| #include "exec/address-spaces.h" |
| #include "sysemu/sysemu.h" |
| #include "hw/boards.h" |
| #include "hw/block/flash.h" |
| #include "sysemu/block-backend.h" |
| #include "hw/loader.h" |
| #include "hw/misc/zynq-xadc.h" |
| #include "hw/ssi/ssi.h" |
| #include "qemu/error-report.h" |
| #include "hw/sd/sd.h" |
| #include "hw/char/cadence_uart.h" |
| |
| #define NUM_SPI_FLASHES 4 |
| #define NUM_QSPI_FLASHES 2 |
| #define NUM_QSPI_BUSSES 2 |
| |
| #define FLASH_SIZE (64 * 1024 * 1024) |
| #define FLASH_SECTOR_SIZE (128 * 1024) |
| |
| #define IRQ_OFFSET 32 /* pic interrupts start from index 32 */ |
| |
| #define MPCORE_PERIPHBASE 0xF8F00000 |
| #define ZYNQ_BOARD_MIDR 0x413FC090 |
| |
| static const int dma_irqs[8] = { |
| 46, 47, 48, 49, 72, 73, 74, 75 |
| }; |
| |
| #define BOARD_SETUP_ADDR 0x100 |
| |
| #define SLCR_LOCK_OFFSET 0x004 |
| #define SLCR_UNLOCK_OFFSET 0x008 |
| #define SLCR_ARM_PLL_OFFSET 0x100 |
| |
| #define SLCR_XILINX_UNLOCK_KEY 0xdf0d |
| #define SLCR_XILINX_LOCK_KEY 0x767b |
| |
| #define ARMV7_IMM16(x) (extract32((x), 0, 12) | \ |
| extract32((x), 12, 4) << 16) |
| |
| /* Write immediate val to address r0 + addr. r0 should contain base offset |
| * of the SLCR block. Clobbers r1. |
| */ |
| |
| #define SLCR_WRITE(addr, val) \ |
| 0xe3001000 + ARMV7_IMM16(extract32((val), 0, 16)), /* movw r1 ... */ \ |
| 0xe3401000 + ARMV7_IMM16(extract32((val), 16, 16)), /* movt r1 ... */ \ |
| 0xe5801000 + (addr) |
| |
| static void zynq_write_board_setup(ARMCPU *cpu, |
| const struct arm_boot_info *info) |
| { |
| int n; |
| uint32_t board_setup_blob[] = { |
| 0xe3a004f8, /* mov r0, #0xf8000000 */ |
| SLCR_WRITE(SLCR_UNLOCK_OFFSET, SLCR_XILINX_UNLOCK_KEY), |
| SLCR_WRITE(SLCR_ARM_PLL_OFFSET, 0x00014008), |
| SLCR_WRITE(SLCR_LOCK_OFFSET, SLCR_XILINX_LOCK_KEY), |
| 0xe12fff1e, /* bx lr */ |
| }; |
| for (n = 0; n < ARRAY_SIZE(board_setup_blob); n++) { |
| board_setup_blob[n] = tswap32(board_setup_blob[n]); |
| } |
| rom_add_blob_fixed("board-setup", board_setup_blob, |
| sizeof(board_setup_blob), BOARD_SETUP_ADDR); |
| } |
| |
| static struct arm_boot_info zynq_binfo = {}; |
| |
| static void gem_init(NICInfo *nd, uint32_t base, qemu_irq irq) |
| { |
| DeviceState *dev; |
| SysBusDevice *s; |
| |
| dev = qdev_create(NULL, "cadence_gem"); |
| if (nd->used) { |
| qemu_check_nic_model(nd, "cadence_gem"); |
| qdev_set_nic_properties(dev, nd); |
| } |
| qdev_init_nofail(dev); |
| s = SYS_BUS_DEVICE(dev); |
| sysbus_mmio_map(s, 0, base); |
| sysbus_connect_irq(s, 0, irq); |
| } |
| |
| static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq, |
| bool is_qspi) |
| { |
| DeviceState *dev; |
| SysBusDevice *busdev; |
| SSIBus *spi; |
| DeviceState *flash_dev; |
| int i, j; |
| int num_busses = is_qspi ? NUM_QSPI_BUSSES : 1; |
| int num_ss = is_qspi ? NUM_QSPI_FLASHES : NUM_SPI_FLASHES; |
| |
| dev = qdev_create(NULL, is_qspi ? "xlnx.ps7-qspi" : "xlnx.ps7-spi"); |
| qdev_prop_set_uint8(dev, "num-txrx-bytes", is_qspi ? 4 : 1); |
| qdev_prop_set_uint8(dev, "num-ss-bits", num_ss); |
| qdev_prop_set_uint8(dev, "num-busses", num_busses); |
| qdev_init_nofail(dev); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_mmio_map(busdev, 0, base_addr); |
| if (is_qspi) { |
| sysbus_mmio_map(busdev, 1, 0xFC000000); |
| } |
| sysbus_connect_irq(busdev, 0, irq); |
| |
| for (i = 0; i < num_busses; ++i) { |
| char bus_name[16]; |
| qemu_irq cs_line; |
| |
| snprintf(bus_name, 16, "spi%d", i); |
| spi = (SSIBus *)qdev_get_child_bus(dev, bus_name); |
| |
| for (j = 0; j < num_ss; ++j) { |
| DriveInfo *dinfo = drive_get_next(IF_MTD); |
| flash_dev = ssi_create_slave_no_init(spi, "n25q128"); |
| if (dinfo) { |
| qdev_prop_set_drive(flash_dev, "drive", |
| blk_by_legacy_dinfo(dinfo), &error_fatal); |
| } |
| qdev_init_nofail(flash_dev); |
| |
| cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0); |
| sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line); |
| } |
| } |
| |
| } |
| |
| static void zynq_init(MachineState *machine) |
| { |
| ram_addr_t ram_size = machine->ram_size; |
| const char *cpu_model = machine->cpu_model; |
| const char *kernel_filename = machine->kernel_filename; |
| const char *kernel_cmdline = machine->kernel_cmdline; |
| const char *initrd_filename = machine->initrd_filename; |
| ObjectClass *cpu_oc; |
| ARMCPU *cpu; |
| MemoryRegion *address_space_mem = get_system_memory(); |
| MemoryRegion *ext_ram = g_new(MemoryRegion, 1); |
| MemoryRegion *ocm_ram = g_new(MemoryRegion, 1); |
| DeviceState *dev, *carddev; |
| SysBusDevice *busdev; |
| DriveInfo *di; |
| BlockBackend *blk; |
| qemu_irq pic[64]; |
| int n; |
| |
| if (!cpu_model) { |
| cpu_model = "cortex-a9"; |
| } |
| cpu_oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model); |
| |
| cpu = ARM_CPU(object_new(object_class_get_name(cpu_oc))); |
| |
| /* By default A9 CPUs have EL3 enabled. This board does not |
| * currently support EL3 so the CPU EL3 property is disabled before |
| * realization. |
| */ |
| if (object_property_find(OBJECT(cpu), "has_el3", NULL)) { |
| object_property_set_bool(OBJECT(cpu), false, "has_el3", &error_fatal); |
| } |
| |
| object_property_set_int(OBJECT(cpu), ZYNQ_BOARD_MIDR, "midr", |
| &error_fatal); |
| object_property_set_int(OBJECT(cpu), MPCORE_PERIPHBASE, "reset-cbar", |
| &error_fatal); |
| object_property_set_bool(OBJECT(cpu), true, "realized", &error_fatal); |
| |
| /* max 2GB ram */ |
| if (ram_size > 0x80000000) { |
| ram_size = 0x80000000; |
| } |
| |
| /* DDR remapped to address zero. */ |
| memory_region_allocate_system_memory(ext_ram, NULL, "zynq.ext_ram", |
| ram_size); |
| memory_region_add_subregion(address_space_mem, 0, ext_ram); |
| |
| /* 256K of on-chip memory */ |
| memory_region_init_ram(ocm_ram, NULL, "zynq.ocm_ram", 256 << 10, |
| &error_fatal); |
| vmstate_register_ram_global(ocm_ram); |
| memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram); |
| |
| DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0); |
| |
| /* AMD */ |
| pflash_cfi02_register(0xe2000000, NULL, "zynq.pflash", FLASH_SIZE, |
| dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, |
| FLASH_SECTOR_SIZE, |
| FLASH_SIZE/FLASH_SECTOR_SIZE, 1, |
| 1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa, |
| 0); |
| |
| dev = qdev_create(NULL, "xilinx,zynq_slcr"); |
| qdev_init_nofail(dev); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8000000); |
| |
| dev = qdev_create(NULL, "a9mpcore_priv"); |
| qdev_prop_set_uint32(dev, "num-cpu", 1); |
| qdev_init_nofail(dev); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE); |
| sysbus_connect_irq(busdev, 0, |
| qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ)); |
| |
| for (n = 0; n < 64; n++) { |
| pic[n] = qdev_get_gpio_in(dev, n); |
| } |
| |
| zynq_init_spi_flashes(0xE0006000, pic[58-IRQ_OFFSET], false); |
| zynq_init_spi_flashes(0xE0007000, pic[81-IRQ_OFFSET], false); |
| zynq_init_spi_flashes(0xE000D000, pic[51-IRQ_OFFSET], true); |
| |
| sysbus_create_simple("xlnx,ps7-usb", 0xE0002000, pic[53-IRQ_OFFSET]); |
| sysbus_create_simple("xlnx,ps7-usb", 0xE0003000, pic[76-IRQ_OFFSET]); |
| |
| cadence_uart_create(0xE0000000, pic[59 - IRQ_OFFSET], serial_hds[0]); |
| cadence_uart_create(0xE0001000, pic[82 - IRQ_OFFSET], serial_hds[1]); |
| |
| sysbus_create_varargs("cadence_ttc", 0xF8001000, |
| pic[42-IRQ_OFFSET], pic[43-IRQ_OFFSET], pic[44-IRQ_OFFSET], NULL); |
| sysbus_create_varargs("cadence_ttc", 0xF8002000, |
| pic[69-IRQ_OFFSET], pic[70-IRQ_OFFSET], pic[71-IRQ_OFFSET], NULL); |
| |
| gem_init(&nd_table[0], 0xE000B000, pic[54-IRQ_OFFSET]); |
| gem_init(&nd_table[1], 0xE000C000, pic[77-IRQ_OFFSET]); |
| |
| dev = qdev_create(NULL, "generic-sdhci"); |
| qdev_init_nofail(dev); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0100000); |
| sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[56-IRQ_OFFSET]); |
| |
| di = drive_get_next(IF_SD); |
| blk = di ? blk_by_legacy_dinfo(di) : NULL; |
| carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD); |
| qdev_prop_set_drive(carddev, "drive", blk, &error_fatal); |
| object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal); |
| |
| dev = qdev_create(NULL, "generic-sdhci"); |
| qdev_init_nofail(dev); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xE0101000); |
| sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[79-IRQ_OFFSET]); |
| |
| di = drive_get_next(IF_SD); |
| blk = di ? blk_by_legacy_dinfo(di) : NULL; |
| carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD); |
| qdev_prop_set_drive(carddev, "drive", blk, &error_fatal); |
| object_property_set_bool(OBJECT(carddev), true, "realized", &error_fatal); |
| |
| dev = qdev_create(NULL, TYPE_ZYNQ_XADC); |
| qdev_init_nofail(dev); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8007100); |
| sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[39-IRQ_OFFSET]); |
| |
| dev = qdev_create(NULL, "pl330"); |
| qdev_prop_set_uint8(dev, "num_chnls", 8); |
| qdev_prop_set_uint8(dev, "num_periph_req", 4); |
| qdev_prop_set_uint8(dev, "num_events", 16); |
| |
| qdev_prop_set_uint8(dev, "data_width", 64); |
| qdev_prop_set_uint8(dev, "wr_cap", 8); |
| qdev_prop_set_uint8(dev, "wr_q_dep", 16); |
| qdev_prop_set_uint8(dev, "rd_cap", 8); |
| qdev_prop_set_uint8(dev, "rd_q_dep", 16); |
| qdev_prop_set_uint16(dev, "data_buffer_dep", 256); |
| |
| qdev_init_nofail(dev); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_mmio_map(busdev, 0, 0xF8003000); |
| sysbus_connect_irq(busdev, 0, pic[45-IRQ_OFFSET]); /* abort irq line */ |
| for (n = 0; n < 8; ++n) { /* event irqs */ |
| sysbus_connect_irq(busdev, n + 1, pic[dma_irqs[n] - IRQ_OFFSET]); |
| } |
| |
| dev = qdev_create(NULL, "xlnx.ps7-dev-cfg"); |
| qdev_init_nofail(dev); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_connect_irq(busdev, 0, pic[40 - IRQ_OFFSET]); |
| sysbus_mmio_map(busdev, 0, 0xF8007000); |
| |
| zynq_binfo.ram_size = ram_size; |
| zynq_binfo.kernel_filename = kernel_filename; |
| zynq_binfo.kernel_cmdline = kernel_cmdline; |
| zynq_binfo.initrd_filename = initrd_filename; |
| zynq_binfo.nb_cpus = 1; |
| zynq_binfo.board_id = 0xd32; |
| zynq_binfo.loader_start = 0; |
| zynq_binfo.board_setup_addr = BOARD_SETUP_ADDR; |
| zynq_binfo.write_board_setup = zynq_write_board_setup; |
| |
| arm_load_kernel(ARM_CPU(first_cpu), &zynq_binfo); |
| } |
| |
| static void zynq_machine_init(MachineClass *mc) |
| { |
| mc->desc = "Xilinx Zynq Platform Baseboard for Cortex-A9"; |
| mc->init = zynq_init; |
| mc->block_default_type = IF_SCSI; |
| mc->max_cpus = 1; |
| mc->no_sdcard = 1; |
| } |
| |
| DEFINE_MACHINE("xilinx-zynq-a9", zynq_machine_init) |
