| /* |
| * ARM RealView Baseboard System emulation. |
| * |
| * Copyright (c) 2006-2007 CodeSourcery. |
| * Written by Paul Brook |
| * |
| * This code is licenced under the GPL. |
| */ |
| |
| #include "sysbus.h" |
| #include "arm-misc.h" |
| #include "primecell.h" |
| #include "devices.h" |
| #include "pci.h" |
| #include "usb-ohci.h" |
| #include "net.h" |
| #include "sysemu.h" |
| #include "boards.h" |
| #include "bitbang_i2c.h" |
| #include "sysbus.h" |
| #include "blockdev.h" |
| |
| #define SMP_BOOT_ADDR 0xe0000000 |
| |
| typedef struct { |
| SysBusDevice busdev; |
| bitbang_i2c_interface *bitbang; |
| int out; |
| int in; |
| } RealViewI2CState; |
| |
| static uint32_t realview_i2c_read(void *opaque, target_phys_addr_t offset) |
| { |
| RealViewI2CState *s = (RealViewI2CState *)opaque; |
| |
| if (offset == 0) { |
| return (s->out & 1) | (s->in << 1); |
| } else { |
| hw_error("realview_i2c_read: Bad offset 0x%x\n", (int)offset); |
| return -1; |
| } |
| } |
| |
| static void realview_i2c_write(void *opaque, target_phys_addr_t offset, |
| uint32_t value) |
| { |
| RealViewI2CState *s = (RealViewI2CState *)opaque; |
| |
| switch (offset) { |
| case 0: |
| s->out |= value & 3; |
| break; |
| case 4: |
| s->out &= ~value; |
| break; |
| default: |
| hw_error("realview_i2c_write: Bad offset 0x%x\n", (int)offset); |
| } |
| bitbang_i2c_set(s->bitbang, BITBANG_I2C_SCL, (s->out & 1) != 0); |
| s->in = bitbang_i2c_set(s->bitbang, BITBANG_I2C_SDA, (s->out & 2) != 0); |
| } |
| |
| static CPUReadMemoryFunc * const realview_i2c_readfn[] = { |
| realview_i2c_read, |
| realview_i2c_read, |
| realview_i2c_read |
| }; |
| |
| static CPUWriteMemoryFunc * const realview_i2c_writefn[] = { |
| realview_i2c_write, |
| realview_i2c_write, |
| realview_i2c_write |
| }; |
| |
| static int realview_i2c_init(SysBusDevice *dev) |
| { |
| RealViewI2CState *s = FROM_SYSBUS(RealViewI2CState, dev); |
| i2c_bus *bus; |
| int iomemtype; |
| |
| bus = i2c_init_bus(&dev->qdev, "i2c"); |
| s->bitbang = bitbang_i2c_init(bus); |
| iomemtype = cpu_register_io_memory(realview_i2c_readfn, |
| realview_i2c_writefn, s, |
| DEVICE_NATIVE_ENDIAN); |
| sysbus_init_mmio(dev, 0x1000, iomemtype); |
| return 0; |
| } |
| |
| static SysBusDeviceInfo realview_i2c_info = { |
| .init = realview_i2c_init, |
| .qdev.name = "realview_i2c", |
| .qdev.size = sizeof(RealViewI2CState), |
| }; |
| |
| static void realview_register_devices(void) |
| { |
| sysbus_register_withprop(&realview_i2c_info); |
| } |
| |
| /* Board init. */ |
| |
| static struct arm_boot_info realview_binfo = { |
| .smp_loader_start = SMP_BOOT_ADDR, |
| }; |
| |
| static void secondary_cpu_reset(void *opaque) |
| { |
| CPUState *env = opaque; |
| |
| cpu_reset(env); |
| /* Set entry point for secondary CPUs. This assumes we're using |
| the init code from arm_boot.c. Real hardware resets all CPUs |
| the same. */ |
| env->regs[15] = SMP_BOOT_ADDR; |
| } |
| |
| /* The following two lists must be consistent. */ |
| enum realview_board_type { |
| BOARD_EB, |
| BOARD_EB_MPCORE, |
| BOARD_PB_A8, |
| BOARD_PBX_A9, |
| }; |
| |
| static const int realview_board_id[] = { |
| 0x33b, |
| 0x33b, |
| 0x769, |
| 0x76d |
| }; |
| |
| static void realview_init(ram_addr_t ram_size, |
| const char *boot_device, |
| const char *kernel_filename, const char *kernel_cmdline, |
| const char *initrd_filename, const char *cpu_model, |
| enum realview_board_type board_type) |
| { |
| CPUState *env = NULL; |
| ram_addr_t ram_offset; |
| DeviceState *dev; |
| SysBusDevice *busdev; |
| qemu_irq *irqp; |
| qemu_irq pic[64]; |
| PCIBus *pci_bus; |
| NICInfo *nd; |
| i2c_bus *i2c; |
| int n; |
| int done_nic = 0; |
| qemu_irq cpu_irq[4]; |
| int is_mpcore = 0; |
| int is_pb = 0; |
| uint32_t proc_id = 0; |
| uint32_t sys_id; |
| ram_addr_t low_ram_size; |
| |
| switch (board_type) { |
| case BOARD_EB: |
| break; |
| case BOARD_EB_MPCORE: |
| is_mpcore = 1; |
| break; |
| case BOARD_PB_A8: |
| is_pb = 1; |
| break; |
| case BOARD_PBX_A9: |
| is_mpcore = 1; |
| is_pb = 1; |
| break; |
| } |
| for (n = 0; n < smp_cpus; n++) { |
| env = cpu_init(cpu_model); |
| if (!env) { |
| fprintf(stderr, "Unable to find CPU definition\n"); |
| exit(1); |
| } |
| irqp = arm_pic_init_cpu(env); |
| cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ]; |
| if (n > 0) { |
| qemu_register_reset(secondary_cpu_reset, env); |
| } |
| } |
| if (arm_feature(env, ARM_FEATURE_V7)) { |
| if (is_mpcore) { |
| proc_id = 0x0c000000; |
| } else { |
| proc_id = 0x0e000000; |
| } |
| } else if (arm_feature(env, ARM_FEATURE_V6K)) { |
| proc_id = 0x06000000; |
| } else if (arm_feature(env, ARM_FEATURE_V6)) { |
| proc_id = 0x04000000; |
| } else { |
| proc_id = 0x02000000; |
| } |
| |
| if (is_pb && ram_size > 0x20000000) { |
| /* Core tile RAM. */ |
| low_ram_size = ram_size - 0x20000000; |
| ram_size = 0x20000000; |
| ram_offset = qemu_ram_alloc(NULL, "realview.lowmem", low_ram_size); |
| cpu_register_physical_memory(0x20000000, low_ram_size, |
| ram_offset | IO_MEM_RAM); |
| } |
| |
| ram_offset = qemu_ram_alloc(NULL, "realview.highmem", ram_size); |
| low_ram_size = ram_size; |
| if (low_ram_size > 0x10000000) |
| low_ram_size = 0x10000000; |
| /* SDRAM at address zero. */ |
| cpu_register_physical_memory(0, low_ram_size, ram_offset | IO_MEM_RAM); |
| if (is_pb) { |
| /* And again at a high address. */ |
| cpu_register_physical_memory(0x70000000, ram_size, |
| ram_offset | IO_MEM_RAM); |
| } else { |
| ram_size = low_ram_size; |
| } |
| |
| sys_id = is_pb ? 0x01780500 : 0xc1400400; |
| arm_sysctl_init(0x10000000, sys_id, proc_id); |
| |
| if (is_mpcore) { |
| dev = qdev_create(NULL, is_pb ? "a9mpcore_priv": "realview_mpcore"); |
| qdev_prop_set_uint32(dev, "num-cpu", smp_cpus); |
| qdev_init_nofail(dev); |
| busdev = sysbus_from_qdev(dev); |
| if (is_pb) { |
| realview_binfo.smp_priv_base = 0x1f000000; |
| } else { |
| realview_binfo.smp_priv_base = 0x10100000; |
| } |
| sysbus_mmio_map(busdev, 0, realview_binfo.smp_priv_base); |
| for (n = 0; n < smp_cpus; n++) { |
| sysbus_connect_irq(busdev, n, cpu_irq[n]); |
| } |
| } else { |
| uint32_t gic_addr = is_pb ? 0x1e000000 : 0x10040000; |
| /* For now just create the nIRQ GIC, and ignore the others. */ |
| dev = sysbus_create_simple("realview_gic", gic_addr, cpu_irq[0]); |
| } |
| for (n = 0; n < 64; n++) { |
| pic[n] = qdev_get_gpio_in(dev, n); |
| } |
| |
| sysbus_create_simple("pl050_keyboard", 0x10006000, pic[20]); |
| sysbus_create_simple("pl050_mouse", 0x10007000, pic[21]); |
| |
| sysbus_create_simple("pl011", 0x10009000, pic[12]); |
| sysbus_create_simple("pl011", 0x1000a000, pic[13]); |
| sysbus_create_simple("pl011", 0x1000b000, pic[14]); |
| sysbus_create_simple("pl011", 0x1000c000, pic[15]); |
| |
| /* DMA controller is optional, apparently. */ |
| sysbus_create_simple("pl081", 0x10030000, pic[24]); |
| |
| sysbus_create_simple("sp804", 0x10011000, pic[4]); |
| sysbus_create_simple("sp804", 0x10012000, pic[5]); |
| |
| sysbus_create_simple("pl110_versatile", 0x10020000, pic[23]); |
| |
| sysbus_create_varargs("pl181", 0x10005000, pic[17], pic[18], NULL); |
| |
| sysbus_create_simple("pl031", 0x10017000, pic[10]); |
| |
| if (!is_pb) { |
| dev = sysbus_create_varargs("realview_pci", 0x60000000, |
| pic[48], pic[49], pic[50], pic[51], NULL); |
| pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci"); |
| if (usb_enabled) { |
| usb_ohci_init_pci(pci_bus, -1); |
| } |
| n = drive_get_max_bus(IF_SCSI); |
| while (n >= 0) { |
| pci_create_simple(pci_bus, -1, "lsi53c895a"); |
| n--; |
| } |
| } |
| for(n = 0; n < nb_nics; n++) { |
| nd = &nd_table[n]; |
| |
| if ((!nd->model && !done_nic) |
| || strcmp(nd->model, is_pb ? "lan9118" : "smc91c111") == 0) { |
| if (is_pb) { |
| lan9118_init(nd, 0x4e000000, pic[28]); |
| } else { |
| smc91c111_init(nd, 0x4e000000, pic[28]); |
| } |
| done_nic = 1; |
| } else { |
| pci_nic_init_nofail(nd, "rtl8139", NULL); |
| } |
| } |
| |
| dev = sysbus_create_simple("realview_i2c", 0x10002000, NULL); |
| i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c"); |
| i2c_create_slave(i2c, "ds1338", 0x68); |
| |
| /* Memory map for RealView Emulation Baseboard: */ |
| /* 0x10000000 System registers. */ |
| /* 0x10001000 System controller. */ |
| /* 0x10002000 Two-Wire Serial Bus. */ |
| /* 0x10003000 Reserved. */ |
| /* 0x10004000 AACI. */ |
| /* 0x10005000 MCI. */ |
| /* 0x10006000 KMI0. */ |
| /* 0x10007000 KMI1. */ |
| /* 0x10008000 Character LCD. (EB) */ |
| /* 0x10009000 UART0. */ |
| /* 0x1000a000 UART1. */ |
| /* 0x1000b000 UART2. */ |
| /* 0x1000c000 UART3. */ |
| /* 0x1000d000 SSPI. */ |
| /* 0x1000e000 SCI. */ |
| /* 0x1000f000 Reserved. */ |
| /* 0x10010000 Watchdog. */ |
| /* 0x10011000 Timer 0+1. */ |
| /* 0x10012000 Timer 2+3. */ |
| /* 0x10013000 GPIO 0. */ |
| /* 0x10014000 GPIO 1. */ |
| /* 0x10015000 GPIO 2. */ |
| /* 0x10002000 Two-Wire Serial Bus - DVI. (PB) */ |
| /* 0x10017000 RTC. */ |
| /* 0x10018000 DMC. */ |
| /* 0x10019000 PCI controller config. */ |
| /* 0x10020000 CLCD. */ |
| /* 0x10030000 DMA Controller. */ |
| /* 0x10040000 GIC1. (EB) */ |
| /* 0x10050000 GIC2. (EB) */ |
| /* 0x10060000 GIC3. (EB) */ |
| /* 0x10070000 GIC4. (EB) */ |
| /* 0x10080000 SMC. */ |
| /* 0x1e000000 GIC1. (PB) */ |
| /* 0x1e001000 GIC2. (PB) */ |
| /* 0x1e002000 GIC3. (PB) */ |
| /* 0x1e003000 GIC4. (PB) */ |
| /* 0x40000000 NOR flash. */ |
| /* 0x44000000 DoC flash. */ |
| /* 0x48000000 SRAM. */ |
| /* 0x4c000000 Configuration flash. */ |
| /* 0x4e000000 Ethernet. */ |
| /* 0x4f000000 USB. */ |
| /* 0x50000000 PISMO. */ |
| /* 0x54000000 PISMO. */ |
| /* 0x58000000 PISMO. */ |
| /* 0x5c000000 PISMO. */ |
| /* 0x60000000 PCI. */ |
| /* 0x61000000 PCI Self Config. */ |
| /* 0x62000000 PCI Config. */ |
| /* 0x63000000 PCI IO. */ |
| /* 0x64000000 PCI mem 0. */ |
| /* 0x68000000 PCI mem 1. */ |
| /* 0x6c000000 PCI mem 2. */ |
| |
| /* ??? Hack to map an additional page of ram for the secondary CPU |
| startup code. I guess this works on real hardware because the |
| BootROM happens to be in ROM/flash or in memory that isn't clobbered |
| until after Linux boots the secondary CPUs. */ |
| ram_offset = qemu_ram_alloc(NULL, "realview.hack", 0x1000); |
| cpu_register_physical_memory(SMP_BOOT_ADDR, 0x1000, |
| ram_offset | IO_MEM_RAM); |
| |
| realview_binfo.ram_size = ram_size; |
| realview_binfo.kernel_filename = kernel_filename; |
| realview_binfo.kernel_cmdline = kernel_cmdline; |
| realview_binfo.initrd_filename = initrd_filename; |
| realview_binfo.nb_cpus = smp_cpus; |
| realview_binfo.board_id = realview_board_id[board_type]; |
| realview_binfo.loader_start = (board_type == BOARD_PB_A8 ? 0x70000000 : 0); |
| arm_load_kernel(first_cpu, &realview_binfo); |
| } |
| |
| static void realview_eb_init(ram_addr_t ram_size, |
| const char *boot_device, |
| const char *kernel_filename, const char *kernel_cmdline, |
| const char *initrd_filename, const char *cpu_model) |
| { |
| if (!cpu_model) { |
| cpu_model = "arm926"; |
| } |
| realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline, |
| initrd_filename, cpu_model, BOARD_EB); |
| } |
| |
| static void realview_eb_mpcore_init(ram_addr_t ram_size, |
| const char *boot_device, |
| const char *kernel_filename, const char *kernel_cmdline, |
| const char *initrd_filename, const char *cpu_model) |
| { |
| if (!cpu_model) { |
| cpu_model = "arm11mpcore"; |
| } |
| realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline, |
| initrd_filename, cpu_model, BOARD_EB_MPCORE); |
| } |
| |
| static void realview_pb_a8_init(ram_addr_t ram_size, |
| const char *boot_device, |
| const char *kernel_filename, const char *kernel_cmdline, |
| const char *initrd_filename, const char *cpu_model) |
| { |
| if (!cpu_model) { |
| cpu_model = "cortex-a8"; |
| } |
| realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline, |
| initrd_filename, cpu_model, BOARD_PB_A8); |
| } |
| |
| static void realview_pbx_a9_init(ram_addr_t ram_size, |
| const char *boot_device, |
| const char *kernel_filename, const char *kernel_cmdline, |
| const char *initrd_filename, const char *cpu_model) |
| { |
| if (!cpu_model) { |
| cpu_model = "cortex-a9"; |
| } |
| realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline, |
| initrd_filename, cpu_model, BOARD_PBX_A9); |
| } |
| |
| static QEMUMachine realview_eb_machine = { |
| .name = "realview-eb", |
| .desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)", |
| .init = realview_eb_init, |
| .use_scsi = 1, |
| }; |
| |
| static QEMUMachine realview_eb_mpcore_machine = { |
| .name = "realview-eb-mpcore", |
| .desc = "ARM RealView Emulation Baseboard (ARM11MPCore)", |
| .init = realview_eb_mpcore_init, |
| .use_scsi = 1, |
| .max_cpus = 4, |
| }; |
| |
| static QEMUMachine realview_pb_a8_machine = { |
| .name = "realview-pb-a8", |
| .desc = "ARM RealView Platform Baseboard for Cortex-A8", |
| .init = realview_pb_a8_init, |
| }; |
| |
| static QEMUMachine realview_pbx_a9_machine = { |
| .name = "realview-pbx-a9", |
| .desc = "ARM RealView Platform Baseboard Explore for Cortex-A9", |
| .init = realview_pbx_a9_init, |
| .use_scsi = 1, |
| .max_cpus = 4, |
| }; |
| |
| static void realview_machine_init(void) |
| { |
| qemu_register_machine(&realview_eb_machine); |
| qemu_register_machine(&realview_eb_mpcore_machine); |
| qemu_register_machine(&realview_pb_a8_machine); |
| qemu_register_machine(&realview_pbx_a9_machine); |
| } |
| |
| machine_init(realview_machine_init); |
| device_init(realview_register_devices) |
