| /* |
| * 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 "qemu/units.h" |
| #include "qapi/error.h" |
| #include "cpu.h" |
| #include "hw/sysbus.h" |
| #include "hw/arm/boot.h" |
| #include "net/net.h" |
| #include "exec/address-spaces.h" |
| #include "sysemu/sysemu.h" |
| #include "hw/boards.h" |
| #include "hw/block/flash.h" |
| #include "hw/loader.h" |
| #include "hw/misc/zynq-xadc.h" |
| #include "hw/ssi/ssi.h" |
| #include "hw/usb/chipidea.h" |
| #include "qemu/error-report.h" |
| #include "hw/sd/sdhci.h" |
| #include "hw/char/cadence_uart.h" |
| #include "hw/net/cadence_gem.h" |
| #include "hw/cpu/a9mpcore.h" |
| #include "hw/qdev-clock.h" |
| #include "sysemu/reset.h" |
| |
| #define TYPE_ZYNQ_MACHINE MACHINE_TYPE_NAME("xilinx-zynq-a9") |
| #define ZYNQ_MACHINE(obj) \ |
| OBJECT_CHECK(ZynqMachineState, (obj), TYPE_ZYNQ_MACHINE) |
| |
| /* board base frequency: 33.333333 MHz */ |
| #define PS_CLK_FREQUENCY (100 * 1000 * 1000 / 3) |
| |
| #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 ZYNQ_SDHCI_CAPABILITIES 0x69ec0080 /* Datasheet: UG585 (v1.12.1) */ |
| |
| #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) |
| |
| typedef struct ZynqMachineState { |
| MachineState parent; |
| Clock *ps_clk; |
| } ZynqMachineState; |
| |
| 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_new(TYPE_CADENCE_GEM); |
| if (nd->used) { |
| qemu_check_nic_model(nd, TYPE_CADENCE_GEM); |
| qdev_set_nic_properties(dev, nd); |
| } |
| s = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(s, &error_fatal); |
| 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_new(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); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(busdev, &error_fatal); |
| 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 = qdev_new("n25q128"); |
| if (dinfo) { |
| qdev_prop_set_drive_err(flash_dev, "drive", |
| blk_by_legacy_dinfo(dinfo), |
| &error_fatal); |
| } |
| qdev_realize_and_unref(flash_dev, BUS(spi), &error_fatal); |
| |
| 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) |
| { |
| ZynqMachineState *zynq_machine = ZYNQ_MACHINE(machine); |
| ARMCPU *cpu; |
| MemoryRegion *address_space_mem = get_system_memory(); |
| MemoryRegion *ocm_ram = g_new(MemoryRegion, 1); |
| DeviceState *dev, *slcr; |
| SysBusDevice *busdev; |
| qemu_irq pic[64]; |
| int n; |
| |
| /* max 2GB ram */ |
| if (machine->ram_size > 2 * GiB) { |
| error_report("RAM size more than 2 GiB is not supported"); |
| exit(EXIT_FAILURE); |
| } |
| |
| cpu = ARM_CPU(object_new(machine->cpu_type)); |
| |
| /* 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), "has_el3", false, &error_fatal); |
| } |
| |
| object_property_set_int(OBJECT(cpu), "midr", ZYNQ_BOARD_MIDR, |
| &error_fatal); |
| object_property_set_int(OBJECT(cpu), "reset-cbar", MPCORE_PERIPHBASE, |
| &error_fatal); |
| qdev_realize(DEVICE(cpu), NULL, &error_fatal); |
| |
| /* DDR remapped to address zero. */ |
| memory_region_add_subregion(address_space_mem, 0, machine->ram); |
| |
| /* 256K of on-chip memory */ |
| memory_region_init_ram(ocm_ram, NULL, "zynq.ocm_ram", 256 * KiB, |
| &error_fatal); |
| memory_region_add_subregion(address_space_mem, 0xFFFC0000, ocm_ram); |
| |
| DriveInfo *dinfo = drive_get(IF_PFLASH, 0, 0); |
| |
| /* AMD */ |
| pflash_cfi02_register(0xe2000000, "zynq.pflash", FLASH_SIZE, |
| dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, |
| FLASH_SECTOR_SIZE, 1, |
| 1, 0x0066, 0x0022, 0x0000, 0x0000, 0x0555, 0x2aa, |
| 0); |
| |
| /* Create the main clock source, and feed slcr with it */ |
| zynq_machine->ps_clk = CLOCK(object_new(TYPE_CLOCK)); |
| object_property_add_child(OBJECT(zynq_machine), "ps_clk", |
| OBJECT(zynq_machine->ps_clk)); |
| object_unref(OBJECT(zynq_machine->ps_clk)); |
| clock_set_hz(zynq_machine->ps_clk, PS_CLK_FREQUENCY); |
| |
| /* Create slcr, keep a pointer to connect clocks */ |
| slcr = qdev_new("xilinx,zynq_slcr"); |
| qdev_connect_clock_in(slcr, "ps_clk", zynq_machine->ps_clk); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(slcr), &error_fatal); |
| sysbus_mmio_map(SYS_BUS_DEVICE(slcr), 0, 0xF8000000); |
| |
| dev = qdev_new(TYPE_A9MPCORE_PRIV); |
| qdev_prop_set_uint32(dev, "num-cpu", 1); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(busdev, &error_fatal); |
| 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(TYPE_CHIPIDEA, 0xE0002000, pic[53 - IRQ_OFFSET]); |
| sysbus_create_simple(TYPE_CHIPIDEA, 0xE0003000, pic[76 - IRQ_OFFSET]); |
| |
| dev = qdev_new(TYPE_CADENCE_UART); |
| busdev = SYS_BUS_DEVICE(dev); |
| qdev_prop_set_chr(dev, "chardev", serial_hd(0)); |
| qdev_connect_clock_in(dev, "refclk", |
| qdev_get_clock_out(slcr, "uart0_ref_clk")); |
| sysbus_realize_and_unref(busdev, &error_fatal); |
| sysbus_mmio_map(busdev, 0, 0xE0000000); |
| sysbus_connect_irq(busdev, 0, pic[59 - IRQ_OFFSET]); |
| dev = qdev_new(TYPE_CADENCE_UART); |
| busdev = SYS_BUS_DEVICE(dev); |
| qdev_prop_set_chr(dev, "chardev", serial_hd(1)); |
| qdev_connect_clock_in(dev, "refclk", |
| qdev_get_clock_out(slcr, "uart1_ref_clk")); |
| sysbus_realize_and_unref(busdev, &error_fatal); |
| sysbus_mmio_map(busdev, 0, 0xE0001000); |
| sysbus_connect_irq(busdev, 0, pic[82 - IRQ_OFFSET]); |
| |
| 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]); |
| |
| for (n = 0; n < 2; n++) { |
| int hci_irq = n ? 79 : 56; |
| hwaddr hci_addr = n ? 0xE0101000 : 0xE0100000; |
| DriveInfo *di; |
| BlockBackend *blk; |
| DeviceState *carddev; |
| |
| /* Compatible with: |
| * - SD Host Controller Specification Version 2.0 Part A2 |
| * - SDIO Specification Version 2.0 |
| * - MMC Specification Version 3.31 |
| */ |
| dev = qdev_new(TYPE_SYSBUS_SDHCI); |
| qdev_prop_set_uint8(dev, "sd-spec-version", 2); |
| qdev_prop_set_uint64(dev, "capareg", ZYNQ_SDHCI_CAPABILITIES); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, hci_addr); |
| sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[hci_irq - IRQ_OFFSET]); |
| |
| di = drive_get_next(IF_SD); |
| blk = di ? blk_by_legacy_dinfo(di) : NULL; |
| carddev = qdev_new(TYPE_SD_CARD); |
| qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal); |
| qdev_realize_and_unref(carddev, qdev_get_child_bus(dev, "sd-bus"), |
| &error_fatal); |
| } |
| |
| dev = qdev_new(TYPE_ZYNQ_XADC); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xF8007100); |
| sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[39-IRQ_OFFSET]); |
| |
| dev = qdev_new("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); |
| |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(busdev, &error_fatal); |
| sysbus_mmio_map(busdev, 0, 0xF8003000); |
| sysbus_connect_irq(busdev, 0, pic[45-IRQ_OFFSET]); /* abort irq line */ |
| for (n = 0; n < ARRAY_SIZE(dma_irqs); ++n) { /* event irqs */ |
| sysbus_connect_irq(busdev, n + 1, pic[dma_irqs[n] - IRQ_OFFSET]); |
| } |
| |
| dev = qdev_new("xlnx.ps7-dev-cfg"); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_realize_and_unref(busdev, &error_fatal); |
| sysbus_connect_irq(busdev, 0, pic[40 - IRQ_OFFSET]); |
| sysbus_mmio_map(busdev, 0, 0xF8007000); |
| |
| zynq_binfo.ram_size = machine->ram_size; |
| 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), machine, &zynq_binfo); |
| } |
| |
| static void zynq_machine_class_init(ObjectClass *oc, void *data) |
| { |
| MachineClass *mc = MACHINE_CLASS(oc); |
| mc->desc = "Xilinx Zynq Platform Baseboard for Cortex-A9"; |
| mc->init = zynq_init; |
| mc->max_cpus = 1; |
| mc->no_sdcard = 1; |
| mc->ignore_memory_transaction_failures = true; |
| mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a9"); |
| mc->default_ram_id = "zynq.ext_ram"; |
| } |
| |
| static const TypeInfo zynq_machine_type = { |
| .name = TYPE_ZYNQ_MACHINE, |
| .parent = TYPE_MACHINE, |
| .class_init = zynq_machine_class_init, |
| .instance_size = sizeof(ZynqMachineState), |
| }; |
| |
| static void zynq_machine_register_types(void) |
| { |
| type_register_static(&zynq_machine_type); |
| } |
| |
| type_init(zynq_machine_register_types) |
