/* * ARM V2M MPS2 board emulation, trustzone aware FPGA images * * Copyright (c) 2017 Linaro Limited * Written by Peter Maydell * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 or * (at your option) any later version. */ /* The MPS2 and MPS2+ dev boards are FPGA based (the 2+ has a bigger * FPGA but is otherwise the same as the 2). Since the CPU itself * and most of the devices are in the FPGA, the details of the board * as seen by the guest depend significantly on the FPGA image. * This source file covers the following FPGA images, for TrustZone cores: * "mps2-an505" -- Cortex-M33 as documented in ARM Application Note AN505 * * Links to the TRM for the board itself and to the various Application * Notes which document the FPGA images can be found here: * https://developer.arm.com/products/system-design/development-boards/fpga-prototyping-boards/mps2 * * Board TRM: * http://infocenter.arm.com/help/topic/com.arm.doc.100112_0200_06_en/versatile_express_cortex_m_prototyping_systems_v2m_mps2_and_v2m_mps2plus_technical_reference_100112_0200_06_en.pdf * Application Note AN505: * http://infocenter.arm.com/help/topic/com.arm.doc.dai0505b/index.html * * The AN505 defers to the Cortex-M33 processor ARMv8M IoT Kit FVP User Guide * (ARM ECM0601256) for the details of some of the device layout: * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html */ #include "qemu/osdep.h" #include "qapi/error.h" #include "qemu/error-report.h" #include "hw/arm/arm.h" #include "hw/arm/armv7m.h" #include "hw/or-irq.h" #include "hw/boards.h" #include "exec/address-spaces.h" #include "sysemu/sysemu.h" #include "hw/misc/unimp.h" #include "hw/char/cmsdk-apb-uart.h" #include "hw/timer/cmsdk-apb-timer.h" #include "hw/misc/mps2-scc.h" #include "hw/misc/mps2-fpgaio.h" #include "hw/arm/iotkit.h" #include "hw/devices.h" #include "net/net.h" #include "hw/core/split-irq.h" typedef enum MPS2TZFPGAType { FPGA_AN505, } MPS2TZFPGAType; typedef struct { MachineClass parent; MPS2TZFPGAType fpga_type; uint32_t scc_id; } MPS2TZMachineClass; typedef struct { MachineState parent; IoTKit iotkit; MemoryRegion psram; MemoryRegion ssram1; MemoryRegion ssram1_m; MemoryRegion ssram23; MPS2SCC scc; MPS2FPGAIO fpgaio; TZPPC ppc[5]; UnimplementedDeviceState ssram_mpc[3]; UnimplementedDeviceState spi[5]; UnimplementedDeviceState i2c[4]; UnimplementedDeviceState i2s_audio; UnimplementedDeviceState gpio[5]; UnimplementedDeviceState dma[4]; UnimplementedDeviceState gfx; CMSDKAPBUART uart[5]; SplitIRQ sec_resp_splitter; qemu_or_irq uart_irq_orgate; } MPS2TZMachineState; #define TYPE_MPS2TZ_MACHINE "mps2tz" #define TYPE_MPS2TZ_AN505_MACHINE MACHINE_TYPE_NAME("mps2-an505") #define MPS2TZ_MACHINE(obj) \ OBJECT_CHECK(MPS2TZMachineState, obj, TYPE_MPS2TZ_MACHINE) #define MPS2TZ_MACHINE_GET_CLASS(obj) \ OBJECT_GET_CLASS(MPS2TZMachineClass, obj, TYPE_MPS2TZ_MACHINE) #define MPS2TZ_MACHINE_CLASS(klass) \ OBJECT_CLASS_CHECK(MPS2TZMachineClass, klass, TYPE_MPS2TZ_MACHINE) /* Main SYSCLK frequency in Hz */ #define SYSCLK_FRQ 20000000 /* Initialize the auxiliary RAM region @mr and map it into * the memory map at @base. */ static void make_ram(MemoryRegion *mr, const char *name, hwaddr base, hwaddr size) { memory_region_init_ram(mr, NULL, name, size, &error_fatal); memory_region_add_subregion(get_system_memory(), base, mr); } /* Create an alias of an entire original MemoryRegion @orig * located at @base in the memory map. */ static void make_ram_alias(MemoryRegion *mr, const char *name, MemoryRegion *orig, hwaddr base) { memory_region_init_alias(mr, NULL, name, orig, 0, memory_region_size(orig)); memory_region_add_subregion(get_system_memory(), base, mr); } static void init_sysbus_child(Object *parent, const char *childname, void *child, size_t childsize, const char *childtype) { object_initialize(child, childsize, childtype); object_property_add_child(parent, childname, OBJECT(child), &error_abort); qdev_set_parent_bus(DEVICE(child), sysbus_get_default()); } /* Most of the devices in the AN505 FPGA image sit behind * Peripheral Protection Controllers. These data structures * define the layout of which devices sit behind which PPCs. * The devfn for each port is a function which creates, configures * and initializes the device, returning the MemoryRegion which * needs to be plugged into the downstream end of the PPC port. */ typedef MemoryRegion *MakeDevFn(MPS2TZMachineState *mms, void *opaque, const char *name, hwaddr size); typedef struct PPCPortInfo { const char *name; MakeDevFn *devfn; void *opaque; hwaddr addr; hwaddr size; } PPCPortInfo; typedef struct PPCInfo { const char *name; PPCPortInfo ports[TZ_NUM_PORTS]; } PPCInfo; static MemoryRegion *make_unimp_dev(MPS2TZMachineState *mms, void *opaque, const char *name, hwaddr size) { /* Initialize, configure and realize a TYPE_UNIMPLEMENTED_DEVICE, * and return a pointer to its MemoryRegion. */ UnimplementedDeviceState *uds = opaque; init_sysbus_child(OBJECT(mms), name, uds, sizeof(UnimplementedDeviceState), TYPE_UNIMPLEMENTED_DEVICE); qdev_prop_set_string(DEVICE(uds), "name", name); qdev_prop_set_uint64(DEVICE(uds), "size", size); object_property_set_bool(OBJECT(uds), true, "realized", &error_fatal); return sysbus_mmio_get_region(SYS_BUS_DEVICE(uds), 0); } static MemoryRegion *make_uart(MPS2TZMachineState *mms, void *opaque, const char *name, hwaddr size) { CMSDKAPBUART *uart = opaque; int i = uart - &mms->uart[0]; int rxirqno = i * 2; int txirqno = i * 2 + 1; int combirqno = i + 10; SysBusDevice *s; DeviceState *iotkitdev = DEVICE(&mms->iotkit); DeviceState *orgate_dev = DEVICE(&mms->uart_irq_orgate); init_sysbus_child(OBJECT(mms), name, uart, sizeof(mms->uart[0]), TYPE_CMSDK_APB_UART); qdev_prop_set_chr(DEVICE(uart), "chardev", serial_hd(i)); qdev_prop_set_uint32(DEVICE(uart), "pclk-frq", SYSCLK_FRQ); object_property_set_bool(OBJECT(uart), true, "realized", &error_fatal); s = SYS_BUS_DEVICE(uart); sysbus_connect_irq(s, 0, qdev_get_gpio_in_named(iotkitdev, "EXP_IRQ", txirqno)); sysbus_connect_irq(s, 1, qdev_get_gpio_in_named(iotkitdev, "EXP_IRQ", rxirqno)); sysbus_connect_irq(s, 2, qdev_get_gpio_in(orgate_dev, i * 2)); sysbus_connect_irq(s, 3, qdev_get_gpio_in(orgate_dev, i * 2 + 1)); sysbus_connect_irq(s, 4, qdev_get_gpio_in_named(iotkitdev, "EXP_IRQ", combirqno)); return sysbus_mmio_get_region(SYS_BUS_DEVICE(uart), 0); } static MemoryRegion *make_scc(MPS2TZMachineState *mms, void *opaque, const char *name, hwaddr size) { MPS2SCC *scc = opaque; DeviceState *sccdev; MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_GET_CLASS(mms); object_initialize(scc, sizeof(mms->scc), TYPE_MPS2_SCC); sccdev = DEVICE(scc); qdev_set_parent_bus(sccdev, sysbus_get_default()); qdev_prop_set_uint32(sccdev, "scc-cfg4", 0x2); qdev_prop_set_uint32(sccdev, "scc-aid", 0x02000008); qdev_prop_set_uint32(sccdev, "scc-id", mmc->scc_id); object_property_set_bool(OBJECT(scc), true, "realized", &error_fatal); return sysbus_mmio_get_region(SYS_BUS_DEVICE(sccdev), 0); } static MemoryRegion *make_fpgaio(MPS2TZMachineState *mms, void *opaque, const char *name, hwaddr size) { MPS2FPGAIO *fpgaio = opaque; object_initialize(fpgaio, sizeof(mms->fpgaio), TYPE_MPS2_FPGAIO); qdev_set_parent_bus(DEVICE(fpgaio), sysbus_get_default()); object_property_set_bool(OBJECT(fpgaio), true, "realized", &error_fatal); return sysbus_mmio_get_region(SYS_BUS_DEVICE(fpgaio), 0); } static void mps2tz_common_init(MachineState *machine) { MPS2TZMachineState *mms = MPS2TZ_MACHINE(machine); MachineClass *mc = MACHINE_GET_CLASS(machine); MemoryRegion *system_memory = get_system_memory(); DeviceState *iotkitdev; DeviceState *dev_splitter; int i; if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) { error_report("This board can only be used with CPU %s", mc->default_cpu_type); exit(1); } init_sysbus_child(OBJECT(machine), "iotkit", &mms->iotkit, sizeof(mms->iotkit), TYPE_IOTKIT); iotkitdev = DEVICE(&mms->iotkit); object_property_set_link(OBJECT(&mms->iotkit), OBJECT(system_memory), "memory", &error_abort); qdev_prop_set_uint32(iotkitdev, "EXP_NUMIRQ", 92); qdev_prop_set_uint32(iotkitdev, "MAINCLK", SYSCLK_FRQ); object_property_set_bool(OBJECT(&mms->iotkit), true, "realized", &error_fatal); /* The sec_resp_cfg output from the IoTKit must be split into multiple * lines, one for each of the PPCs we create here. */ object_initialize(&mms->sec_resp_splitter, sizeof(mms->sec_resp_splitter), TYPE_SPLIT_IRQ); object_property_add_child(OBJECT(machine), "sec-resp-splitter", OBJECT(&mms->sec_resp_splitter), &error_abort); object_property_set_int(OBJECT(&mms->sec_resp_splitter), 5, "num-lines", &error_fatal); object_property_set_bool(OBJECT(&mms->sec_resp_splitter), true, "realized", &error_fatal); dev_splitter = DEVICE(&mms->sec_resp_splitter); qdev_connect_gpio_out_named(iotkitdev, "sec_resp_cfg", 0, qdev_get_gpio_in(dev_splitter, 0)); /* The IoTKit sets up much of the memory layout, including * the aliases between secure and non-secure regions in the * address space. The FPGA itself contains: * * 0x00000000..0x003fffff SSRAM1 * 0x00400000..0x007fffff alias of SSRAM1 * 0x28000000..0x283fffff 4MB SSRAM2 + SSRAM3 * 0x40100000..0x4fffffff AHB Master Expansion 1 interface devices * 0x80000000..0x80ffffff 16MB PSRAM */ /* The FPGA images have an odd combination of different RAMs, * because in hardware they are different implementations and * connected to different buses, giving varying performance/size * tradeoffs. For QEMU they're all just RAM, though. We arbitrarily * call the 16MB our "system memory", as it's the largest lump. */ memory_region_allocate_system_memory(&mms->psram, NULL, "mps.ram", 0x01000000); memory_region_add_subregion(system_memory, 0x80000000, &mms->psram); /* The SSRAM memories should all be behind Memory Protection Controllers, * but we don't implement that yet. */ make_ram(&mms->ssram1, "mps.ssram1", 0x00000000, 0x00400000); make_ram_alias(&mms->ssram1_m, "mps.ssram1_m", &mms->ssram1, 0x00400000); make_ram(&mms->ssram23, "mps.ssram23", 0x28000000, 0x00400000); /* The overflow IRQs for all UARTs are ORed together. * Tx, Rx and "combined" IRQs are sent to the NVIC separately. * Create the OR gate for this. */ object_initialize(&mms->uart_irq_orgate, sizeof(mms->uart_irq_orgate), TYPE_OR_IRQ); object_property_add_child(OBJECT(mms), "uart-irq-orgate", OBJECT(&mms->uart_irq_orgate), &error_abort); object_property_set_int(OBJECT(&mms->uart_irq_orgate), 10, "num-lines", &error_fatal); object_property_set_bool(OBJECT(&mms->uart_irq_orgate), true, "realized", &error_fatal); qdev_connect_gpio_out(DEVICE(&mms->uart_irq_orgate), 0, qdev_get_gpio_in_named(iotkitdev, "EXP_IRQ", 15)); /* Most of the devices in the FPGA are behind Peripheral Protection * Controllers. The required order for initializing things is: * + initialize the PPC * + initialize, configure and realize downstream devices * + connect downstream device MemoryRegions to the PPC * + realize the PPC * + map the PPC's MemoryRegions to the places in the address map * where the downstream devices should appear * + wire up the PPC's control lines to the IoTKit object */ const PPCInfo ppcs[] = { { .name = "apb_ppcexp0", .ports = { { "ssram-mpc0", make_unimp_dev, &mms->ssram_mpc[0], 0x58007000, 0x1000 }, { "ssram-mpc1", make_unimp_dev, &mms->ssram_mpc[1], 0x58008000, 0x1000 }, { "ssram-mpc2", make_unimp_dev, &mms->ssram_mpc[2], 0x58009000, 0x1000 }, }, }, { .name = "apb_ppcexp1", .ports = { { "spi0", make_unimp_dev, &mms->spi[0], 0x40205000, 0x1000 }, { "spi1", make_unimp_dev, &mms->spi[1], 0x40206000, 0x1000 }, { "spi2", make_unimp_dev, &mms->spi[2], 0x40209000, 0x1000 }, { "spi3", make_unimp_dev, &mms->spi[3], 0x4020a000, 0x1000 }, { "spi4", make_unimp_dev, &mms->spi[4], 0x4020b000, 0x1000 }, { "uart0", make_uart, &mms->uart[0], 0x40200000, 0x1000 }, { "uart1", make_uart, &mms->uart[1], 0x40201000, 0x1000 }, { "uart2", make_uart, &mms->uart[2], 0x40202000, 0x1000 }, { "uart3", make_uart, &mms->uart[3], 0x40203000, 0x1000 }, { "uart4", make_uart, &mms->uart[4], 0x40204000, 0x1000 }, { "i2c0", make_unimp_dev, &mms->i2c[0], 0x40207000, 0x1000 }, { "i2c1", make_unimp_dev, &mms->i2c[1], 0x40208000, 0x1000 }, { "i2c2", make_unimp_dev, &mms->i2c[2], 0x4020c000, 0x1000 }, { "i2c3", make_unimp_dev, &mms->i2c[3], 0x4020d000, 0x1000 }, }, }, { .name = "apb_ppcexp2", .ports = { { "scc", make_scc, &mms->scc, 0x40300000, 0x1000 }, { "i2s-audio", make_unimp_dev, &mms->i2s_audio, 0x40301000, 0x1000 }, { "fpgaio", make_fpgaio, &mms->fpgaio, 0x40302000, 0x1000 }, }, }, { .name = "ahb_ppcexp0", .ports = { { "gfx", make_unimp_dev, &mms->gfx, 0x41000000, 0x140000 }, { "gpio0", make_unimp_dev, &mms->gpio[0], 0x40100000, 0x1000 }, { "gpio1", make_unimp_dev, &mms->gpio[1], 0x40101000, 0x1000 }, { "gpio2", make_unimp_dev, &mms->gpio[2], 0x40102000, 0x1000 }, { "gpio3", make_unimp_dev, &mms->gpio[3], 0x40103000, 0x1000 }, { "gpio4", make_unimp_dev, &mms->gpio[4], 0x40104000, 0x1000 }, }, }, { .name = "ahb_ppcexp1", .ports = { { "dma0", make_unimp_dev, &mms->dma[0], 0x40110000, 0x1000 }, { "dma1", make_unimp_dev, &mms->dma[1], 0x40111000, 0x1000 }, { "dma2", make_unimp_dev, &mms->dma[2], 0x40112000, 0x1000 }, { "dma3", make_unimp_dev, &mms->dma[3], 0x40113000, 0x1000 }, }, }, }; for (i = 0; i < ARRAY_SIZE(ppcs); i++) { const PPCInfo *ppcinfo = &ppcs[i]; TZPPC *ppc = &mms->ppc[i]; DeviceState *ppcdev; int port; char *gpioname; init_sysbus_child(OBJECT(machine), ppcinfo->name, ppc, sizeof(TZPPC), TYPE_TZ_PPC); ppcdev = DEVICE(ppc); for (port = 0; port < TZ_NUM_PORTS; port++) { const PPCPortInfo *pinfo = &ppcinfo->ports[port]; MemoryRegion *mr; char *portname; if (!pinfo->devfn) { continue; } mr = pinfo->devfn(mms, pinfo->opaque, pinfo->name, pinfo->size); portname = g_strdup_printf("port[%d]", port); object_property_set_link(OBJECT(ppc), OBJECT(mr), portname, &error_fatal); g_free(portname); } object_property_set_bool(OBJECT(ppc), true, "realized", &error_fatal); for (port = 0; port < TZ_NUM_PORTS; port++) { const PPCPortInfo *pinfo = &ppcinfo->ports[port]; if (!pinfo->devfn) { continue; } sysbus_mmio_map(SYS_BUS_DEVICE(ppc), port, pinfo->addr); gpioname = g_strdup_printf("%s_nonsec", ppcinfo->name); qdev_connect_gpio_out_named(iotkitdev, gpioname, port, qdev_get_gpio_in_named(ppcdev, "cfg_nonsec", port)); g_free(gpioname); gpioname = g_strdup_printf("%s_ap", ppcinfo->name); qdev_connect_gpio_out_named(iotkitdev, gpioname, port, qdev_get_gpio_in_named(ppcdev, "cfg_ap", port)); g_free(gpioname); } gpioname = g_strdup_printf("%s_irq_enable", ppcinfo->name); qdev_connect_gpio_out_named(iotkitdev, gpioname, 0, qdev_get_gpio_in_named(ppcdev, "irq_enable", 0)); g_free(gpioname); gpioname = g_strdup_printf("%s_irq_clear", ppcinfo->name); qdev_connect_gpio_out_named(iotkitdev, gpioname, 0, qdev_get_gpio_in_named(ppcdev, "irq_clear", 0)); g_free(gpioname); gpioname = g_strdup_printf("%s_irq_status", ppcinfo->name); qdev_connect_gpio_out_named(ppcdev, "irq", 0, qdev_get_gpio_in_named(iotkitdev, gpioname, 0)); g_free(gpioname); qdev_connect_gpio_out(dev_splitter, i, qdev_get_gpio_in_named(ppcdev, "cfg_sec_resp", 0)); } /* In hardware this is a LAN9220; the LAN9118 is software compatible * except that it doesn't support the checksum-offload feature. * The ethernet controller is not behind a PPC. */ lan9118_init(&nd_table[0], 0x42000000, qdev_get_gpio_in_named(iotkitdev, "EXP_IRQ", 16)); create_unimplemented_device("FPGA NS PC", 0x48007000, 0x1000); armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename, 0x400000); } static void mps2tz_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); mc->init = mps2tz_common_init; mc->max_cpus = 1; } static void mps2tz_an505_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); MPS2TZMachineClass *mmc = MPS2TZ_MACHINE_CLASS(oc); mc->desc = "ARM MPS2 with AN505 FPGA image for Cortex-M33"; mmc->fpga_type = FPGA_AN505; mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m33"); mmc->scc_id = 0x41040000 | (505 << 4); } static const TypeInfo mps2tz_info = { .name = TYPE_MPS2TZ_MACHINE, .parent = TYPE_MACHINE, .abstract = true, .instance_size = sizeof(MPS2TZMachineState), .class_size = sizeof(MPS2TZMachineClass), .class_init = mps2tz_class_init, }; static const TypeInfo mps2tz_an505_info = { .name = TYPE_MPS2TZ_AN505_MACHINE, .parent = TYPE_MPS2TZ_MACHINE, .class_init = mps2tz_an505_class_init, }; static void mps2tz_machine_init(void) { type_register_static(&mps2tz_info); type_register_static(&mps2tz_an505_info); } type_init(mps2tz_machine_init);