/* * 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 . */ #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(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), 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); /* 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 slcr, keep a pointer to connect clocks */ slcr = qdev_new("xilinx,zynq_slcr"); sysbus_realize_and_unref(SYS_BUS_DEVICE(slcr), &error_fatal); sysbus_mmio_map(SYS_BUS_DEVICE(slcr), 0, 0xF8000000); /* 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); qdev_connect_clock_in(slcr, "ps_clk", zynq_machine->ps_clk); 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 = cadence_uart_create(0xE0000000, pic[59 - IRQ_OFFSET], serial_hd(0)); qdev_connect_clock_in(dev, "refclk", qdev_get_clock_out(slcr, "uart0_ref_clk")); dev = cadence_uart_create(0xE0001000, pic[82 - IRQ_OFFSET], serial_hd(1)); qdev_connect_clock_in(dev, "refclk", qdev_get_clock_out(slcr, "uart1_ref_clk")); 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(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)