| /* |
| * ARM Android ("lionhead") emulator |
| * |
| * modified from vexpress.c |
| * |
| * Copyright (c) 2010 - 2011 B Labs Ltd. |
| * Copyright (c) 2011 Linaro Limited |
| * Written by Bahadir Balban, Amit Mahajan, 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 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, see <http://www.gnu.org/licenses/>. |
| * |
| * Contributions after 2012-01-13 are licensed under the terms of the |
| * GNU GPL, version 2 or (at your option) any later version. |
| */ |
| |
| #include "hw/sysbus.h" |
| #include "hw/arm/arm.h" |
| #include "hw/arm/primecell.h" |
| #include "hw/devices.h" |
| #include "sysemu/sysemu.h" |
| #include "hw/boards.h" |
| #include "exec/address-spaces.h" |
| #include "sysemu/blockdev.h" |
| #include "hw/block/flash.h" |
| #include "sysemu/device_tree.h" |
| #include <libfdt.h> |
| |
| #define LIONHEAD_BOARD_ID 0x5A1 |
| |
| /* Number of virtio transports to create (0..8; limited by |
| * number of available IRQ lines). |
| */ |
| #define NUM_VIRTIO_TRANSPORTS 4 |
| |
| /* Address maps for peripherals: |
| * the Versatile Express motherboard has two possible maps, |
| * the "legacy" one (used for A9) and the "Cortex-A Series" |
| * map (used for newer cores). |
| * Individual daughterboards can also have different maps for |
| * their peripherals. |
| */ |
| |
| enum { |
| VE_SYSREGS, |
| VE_SP810, |
| VE_SERIALPCI, |
| GOLDFISH_AUDIO, |
| GOLDFISH_BATTERY, |
| VE_KMI0, |
| VE_KMI1, |
| VE_UART0, |
| VE_UART1, |
| VE_UART2, |
| VE_UART3, |
| VE_WDT, |
| VE_TIMER01, |
| VE_TIMER23, |
| VE_RTC, |
| VE_COMPACTFLASH, |
| GOLDFISH_FB, |
| VE_NORFLASH0, |
| VE_NORFLASH1, |
| VE_NORFLASHALIAS, |
| VE_SRAM, |
| VE_ETHERNET, |
| VE_USB, |
| VE_DAPROM, |
| VE_VIRTIO, |
| }; |
| |
| static hwaddr motherboard_aseries_map[] = { |
| [VE_NORFLASHALIAS] = 0, |
| /* CS0: 0x08000000 .. 0x0c000000 */ |
| [VE_NORFLASH0] = 0x08000000, |
| /* CS4: 0x0c000000 .. 0x10000000 */ |
| [VE_NORFLASH1] = 0x0c000000, |
| /* CS5: 0x10000000 .. 0x14000000 */ |
| /* CS1: 0x14000000 .. 0x18000000 */ |
| [VE_SRAM] = 0x14000000, |
| /* CS2: 0x18000000 .. 0x1c000000 */ |
| [VE_ETHERNET] = 0x1a000000, |
| [VE_USB] = 0x1b000000, |
| /* CS3: 0x1c000000 .. 0x20000000 */ |
| [VE_DAPROM] = 0x1c000000, |
| [VE_SYSREGS] = 0x1c010000, |
| [VE_SP810] = 0x1c020000, |
| [VE_SERIALPCI] = 0x1c030000, |
| [GOLDFISH_AUDIO] = 0x1c040000, |
| [GOLDFISH_BATTERY] = 0x1c050000, |
| [VE_KMI0] = 0x1c060000, |
| [VE_KMI1] = 0x1c070000, |
| [VE_UART0] = 0x1c090000, |
| [VE_UART1] = 0x1c0a0000, |
| [VE_UART2] = 0x1c0b0000, |
| [VE_UART3] = 0x1c0c0000, |
| [VE_WDT] = 0x1c0f0000, |
| [VE_TIMER01] = 0x1c110000, |
| [VE_TIMER23] = 0x1c120000, |
| [VE_VIRTIO] = 0x1c130000, |
| [VE_RTC] = 0x1c170000, |
| [VE_COMPACTFLASH] = 0x1c1a0000, |
| [GOLDFISH_FB] = 0x1c1f0000, |
| }; |
| |
| /* Structure defining the peculiarities of a specific daughterboard */ |
| |
| typedef struct VEDBoardInfo VEDBoardInfo; |
| |
| typedef void DBoardInitFn(const VEDBoardInfo *daughterboard, |
| ram_addr_t ram_size, |
| const char *cpu_model, |
| qemu_irq *pic); |
| |
| struct VEDBoardInfo { |
| struct arm_boot_info bootinfo; |
| const hwaddr *motherboard_map; |
| hwaddr loader_start; |
| const hwaddr gic_cpu_if_addr; |
| uint32_t proc_id; |
| uint32_t num_voltage_sensors; |
| const uint32_t *voltages; |
| uint32_t num_clocks; |
| const uint32_t *clocks; |
| DBoardInitFn *init; |
| }; |
| |
| static void a15_daughterboard_init(const VEDBoardInfo *daughterboard, |
| ram_addr_t ram_size, |
| const char *cpu_model, |
| qemu_irq *pic) |
| { |
| int n; |
| MemoryRegion *sysmem = get_system_memory(); |
| MemoryRegion *ram = g_new(MemoryRegion, 1); |
| MemoryRegion *sram = g_new(MemoryRegion, 1); |
| qemu_irq cpu_irq[4]; |
| DeviceState *dev; |
| SysBusDevice *busdev; |
| |
| if (!cpu_model) { |
| cpu_model = "cortex-a15"; |
| } |
| |
| for (n = 0; n < smp_cpus; n++) { |
| ARMCPU *cpu; |
| |
| cpu = cpu_arm_init(cpu_model); |
| if (!cpu) { |
| fprintf(stderr, "Unable to find CPU definition\n"); |
| exit(1); |
| } |
| cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ); |
| } |
| |
| { |
| /* We have to use a separate 64 bit variable here to avoid the gcc |
| * "comparison is always false due to limited range of data type" |
| * warning if we are on a host where ram_addr_t is 32 bits. |
| */ |
| uint64_t rsz = ram_size; |
| if (rsz > (30ULL * 1024 * 1024 * 1024)) { |
| fprintf(stderr, "vexpress-a15: cannot model more than 30GB RAM\n"); |
| exit(1); |
| } |
| } |
| |
| memory_region_init_ram(ram, NULL, "vexpress.highmem", ram_size); |
| vmstate_register_ram_global(ram); |
| /* RAM is from 0x80000000 upwards; there is no low-memory alias for it. */ |
| memory_region_add_subregion(sysmem, 0x80000000, ram); |
| |
| /* 0x2c000000 A15MPCore private memory region (GIC) */ |
| dev = qdev_create(NULL, "a15mpcore_priv"); |
| qdev_prop_set_uint32(dev, "num-cpu", smp_cpus); |
| qdev_init_nofail(dev); |
| busdev = SYS_BUS_DEVICE(dev); |
| sysbus_mmio_map(busdev, 0, 0x2c000000); |
| for (n = 0; n < smp_cpus; n++) { |
| sysbus_connect_irq(busdev, n, cpu_irq[n]); |
| } |
| /* Interrupts [42:0] are from the motherboard; |
| * [47:43] are reserved; [63:48] are daughterboard |
| * peripherals. Note that some documentation numbers |
| * external interrupts starting from 32 (because there |
| * are internal interrupts 0..31). |
| */ |
| for (n = 0; n < 64; n++) { |
| pic[n] = qdev_get_gpio_in(dev, n); |
| } |
| |
| /* A15 daughterboard peripherals: */ |
| |
| /* 0x20000000: CoreSight interfaces: not modelled */ |
| /* 0x2a000000: PL301 AXI interconnect: not modelled */ |
| /* 0x2a420000: SCC: not modelled */ |
| /* 0x2a430000: system counter: not modelled */ |
| /* 0x2b000000: HDLCD controller: not modelled */ |
| /* 0x2b060000: SP805 watchdog: not modelled */ |
| /* 0x2b0a0000: PL341 dynamic memory controller: not modelled */ |
| /* 0x2e000000: system SRAM */ |
| memory_region_init_ram(sram, NULL, "vexpress.a15sram", 0x10000); |
| vmstate_register_ram_global(sram); |
| memory_region_add_subregion(sysmem, 0x2e000000, sram); |
| |
| /* 0x7ffb0000: DMA330 DMA controller: not modelled */ |
| /* 0x7ffd0000: PL354 static memory controller: not modelled */ |
| } |
| |
| static const uint32_t a15_voltages[] = { |
| 900000, /* Vcore: 0.9V : CPU core voltage */ |
| }; |
| |
| static const uint32_t a15_clocks[] = { |
| 60000000, /* OSCCLK0: 60MHz : CPU_CLK reference */ |
| 0, /* OSCCLK1: reserved */ |
| 0, /* OSCCLK2: reserved */ |
| 0, /* OSCCLK3: reserved */ |
| 40000000, /* OSCCLK4: 40MHz : external AXI master clock */ |
| 23750000, /* OSCCLK5: 23.75MHz : HDLCD PLL reference */ |
| 50000000, /* OSCCLK6: 50MHz : static memory controller clock */ |
| 60000000, /* OSCCLK7: 60MHz : SYSCLK reference */ |
| 40000000, /* OSCCLK8: 40MHz : DDR2 PLL reference */ |
| }; |
| |
| static VEDBoardInfo a15_daughterboard = { |
| .motherboard_map = motherboard_aseries_map, |
| .loader_start = 0x80000000, |
| .gic_cpu_if_addr = 0x2c002000, |
| .proc_id = 0x14000237, |
| .num_voltage_sensors = ARRAY_SIZE(a15_voltages), |
| .voltages = a15_voltages, |
| .num_clocks = ARRAY_SIZE(a15_clocks), |
| .clocks = a15_clocks, |
| .init = a15_daughterboard_init, |
| }; |
| |
| static int add_virtio_mmio_node(void *fdt, uint32_t acells, uint32_t scells, |
| hwaddr addr, hwaddr size, uint32_t intc, |
| int irq) |
| { |
| /* Add a virtio_mmio node to the device tree blob: |
| * virtio_mmio@ADDRESS { |
| * compatible = "virtio,mmio"; |
| * reg = <ADDRESS, SIZE>; |
| * interrupt-parent = <&intc>; |
| * interrupts = <0, irq, 1>; |
| * } |
| * (Note that the format of the interrupts property is dependent on the |
| * interrupt controller that interrupt-parent points to; these are for |
| * the ARM GIC and indicate an SPI interrupt, rising-edge-triggered.) |
| */ |
| int rc; |
| char *nodename = g_strdup_printf("/virtio_mmio@%" PRIx64, addr); |
| |
| rc = qemu_fdt_add_subnode(fdt, nodename); |
| rc |= qemu_fdt_setprop_string(fdt, nodename, |
| "compatible", "virtio,mmio"); |
| rc |= qemu_fdt_setprop_sized_cells(fdt, nodename, "reg", |
| acells, addr, scells, size); |
| qemu_fdt_setprop_cells(fdt, nodename, "interrupt-parent", intc); |
| qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 0, irq, 1); |
| g_free(nodename); |
| if (rc) { |
| return -1; |
| } |
| return 0; |
| } |
| |
| static uint32_t find_int_controller(void *fdt) |
| { |
| /* Find the FDT node corresponding to the interrupt controller |
| * for virtio-mmio devices. We do this by scanning the fdt for |
| * a node with the right compatibility, since we know there is |
| * only one GIC on a vexpress board. |
| * We return the phandle of the node, or 0 if none was found. |
| */ |
| const char *compat = "arm,cortex-a9-gic"; |
| int offset; |
| |
| offset = fdt_node_offset_by_compatible(fdt, -1, compat); |
| if (offset >= 0) { |
| return fdt_get_phandle(fdt, offset); |
| } |
| return 0; |
| } |
| |
| static void vexpress_modify_dtb(const struct arm_boot_info *info, void *fdt) |
| { |
| uint32_t acells, scells, intc; |
| const VEDBoardInfo *daughterboard = (const VEDBoardInfo *)info; |
| |
| acells = qemu_fdt_getprop_cell(fdt, "/", "#address-cells"); |
| scells = qemu_fdt_getprop_cell(fdt, "/", "#size-cells"); |
| intc = find_int_controller(fdt); |
| if (!intc) { |
| /* Not fatal, we just won't provide virtio. This will |
| * happen with older device tree blobs. |
| */ |
| fprintf(stderr, "QEMU: warning: couldn't find interrupt controller in " |
| "dtb; will not include virtio-mmio devices in the dtb.\n"); |
| } else { |
| int i; |
| const hwaddr *map = daughterboard->motherboard_map; |
| |
| /* We iterate backwards here because adding nodes |
| * to the dtb puts them in last-first. |
| */ |
| for (i = NUM_VIRTIO_TRANSPORTS - 1; i >= 0; i--) { |
| add_virtio_mmio_node(fdt, acells, scells, |
| map[VE_VIRTIO] + 0x200 * i, |
| 0x200, intc, 40 + i); |
| } |
| } |
| } |
| |
| static void lionhead_common_init(VEDBoardInfo *daughterboard, |
| QEMUMachineInitArgs *args) |
| { |
| DeviceState *sysctl; |
| qemu_irq pic[64]; |
| uint32_t sys_id; |
| ram_addr_t sram_size; |
| MemoryRegion *sysmem = get_system_memory(); |
| MemoryRegion *sram = g_new(MemoryRegion, 1); |
| const hwaddr *map = daughterboard->motherboard_map; |
| int i; |
| |
| daughterboard->init(daughterboard, args->ram_size, args->cpu_model, pic); |
| |
| /* Motherboard peripherals: the wiring is the same but the |
| * addresses vary between the legacy and A-Series memory maps. |
| */ |
| |
| sys_id = 0x1190f500; |
| |
| sysctl = qdev_create(NULL, "realview_sysctl"); |
| qdev_prop_set_uint32(sysctl, "sys_id", sys_id); |
| qdev_prop_set_uint32(sysctl, "proc_id", daughterboard->proc_id); |
| qdev_prop_set_uint32(sysctl, "len-db-voltage", |
| daughterboard->num_voltage_sensors); |
| for (i = 0; i < daughterboard->num_voltage_sensors; i++) { |
| char *propname = g_strdup_printf("db-voltage[%d]", i); |
| qdev_prop_set_uint32(sysctl, propname, daughterboard->voltages[i]); |
| g_free(propname); |
| } |
| qdev_prop_set_uint32(sysctl, "len-db-clock", |
| daughterboard->num_clocks); |
| for (i = 0; i < daughterboard->num_clocks; i++) { |
| char *propname = g_strdup_printf("db-clock[%d]", i); |
| qdev_prop_set_uint32(sysctl, propname, daughterboard->clocks[i]); |
| g_free(propname); |
| } |
| qdev_init_nofail(sysctl); |
| sysbus_mmio_map(SYS_BUS_DEVICE(sysctl), 0, map[VE_SYSREGS]); |
| |
| /* VE_SP810: not modelled */ |
| /* VE_SERIALPCI: not modelled */ |
| |
| sysbus_create_simple("goldfish_audio", map[GOLDFISH_AUDIO], pic[11]); |
| sysbus_create_simple("goldfish_battery", map[GOLDFISH_BATTERY], pic[9]); |
| |
| sysbus_create_simple("pl050_keyboard", map[VE_KMI0], pic[12]); |
| sysbus_create_simple("pl050_mouse", map[VE_KMI1], pic[13]); |
| |
| sysbus_create_simple("pl011", map[VE_UART0], pic[5]); |
| sysbus_create_simple("pl011", map[VE_UART1], pic[6]); |
| sysbus_create_simple("pl011", map[VE_UART2], pic[7]); |
| sysbus_create_simple("pl011", map[VE_UART3], pic[8]); |
| |
| sysbus_create_simple("sp804", map[VE_TIMER01], pic[2]); |
| sysbus_create_simple("sp804", map[VE_TIMER23], pic[3]); |
| |
| /* VE_SERIALDVI: not modelled */ |
| |
| sysbus_create_simple("pl031", map[VE_RTC], pic[4]); /* RTC */ |
| |
| /* VE_COMPACTFLASH: not modelled */ |
| |
| sysbus_create_simple("goldfish_fb", map[GOLDFISH_FB], pic[14]); |
| |
| sram_size = 0x2000000; |
| memory_region_init_ram(sram, NULL, "vexpress.sram", sram_size); |
| vmstate_register_ram_global(sram); |
| memory_region_add_subregion(sysmem, map[VE_SRAM], sram); |
| |
| /* VE_USB: not modelled */ |
| |
| /* VE_DAPROM: not modelled */ |
| |
| /* Create mmio transports, so the user can create virtio backends |
| * (which will be automatically plugged in to the transports). If |
| * no backend is created the transport will just sit harmlessly idle. |
| */ |
| for (i = 0; i < NUM_VIRTIO_TRANSPORTS; i++) { |
| sysbus_create_simple("virtio-mmio", map[VE_VIRTIO] + 0x200 * i, |
| pic[40 + i]); |
| } |
| |
| daughterboard->bootinfo.ram_size = args->ram_size; |
| daughterboard->bootinfo.kernel_filename = args->kernel_filename; |
| daughterboard->bootinfo.kernel_cmdline = args->kernel_cmdline; |
| daughterboard->bootinfo.initrd_filename = args->initrd_filename; |
| daughterboard->bootinfo.nb_cpus = smp_cpus; |
| daughterboard->bootinfo.board_id = LIONHEAD_BOARD_ID; |
| daughterboard->bootinfo.loader_start = daughterboard->loader_start; |
| daughterboard->bootinfo.smp_loader_start = map[VE_SRAM]; |
| daughterboard->bootinfo.smp_bootreg_addr = map[VE_SYSREGS] + 0x30; |
| daughterboard->bootinfo.gic_cpu_if_addr = daughterboard->gic_cpu_if_addr; |
| daughterboard->bootinfo.modify_dtb = vexpress_modify_dtb; |
| arm_load_kernel(ARM_CPU(first_cpu), &daughterboard->bootinfo); |
| } |
| |
| static void lionhead_a15_init(QEMUMachineInitArgs *args) |
| { |
| lionhead_common_init(&a15_daughterboard, args); |
| } |
| |
| static QEMUMachine lionhead_a15_machine = { |
| .name = "lionhead-a15", |
| .desc = "ARM Android Emulator for Cortex-A15", |
| .init = lionhead_a15_init, |
| .block_default_type = IF_SCSI, |
| .max_cpus = 4, |
| }; |
| |
| static void vexpress_machine_init(void) |
| { |
| qemu_register_machine(&lionhead_a15_machine); |
| } |
| |
| machine_init(vexpress_machine_init); |
