| /* |
| * MIPS Boston development board emulation. |
| * |
| * Copyright (c) 2016 Imagination Technologies |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/units.h" |
| |
| #include "elf.h" |
| #include "hw/boards.h" |
| #include "hw/char/serial-mm.h" |
| #include "hw/ide/pci.h" |
| #include "hw/ide/ahci-pci.h" |
| #include "hw/loader.h" |
| #include "hw/loader-fit.h" |
| #include "hw/mips/bootloader.h" |
| #include "hw/mips/cps.h" |
| #include "hw/pci-host/xilinx-pcie.h" |
| #include "hw/qdev-clock.h" |
| #include "hw/qdev-properties.h" |
| #include "qapi/error.h" |
| #include "qemu/error-report.h" |
| #include "qemu/guest-random.h" |
| #include "qemu/log.h" |
| #include "chardev/char.h" |
| #include "system/device_tree.h" |
| #include "system/system.h" |
| #include "system/qtest.h" |
| #include "system/runstate.h" |
| #include "system/reset.h" |
| |
| #include <libfdt.h> |
| #include "qom/object.h" |
| |
| #define TYPE_BOSTON "mips-boston" |
| typedef struct BostonState BostonState; |
| DECLARE_INSTANCE_CHECKER(BostonState, BOSTON, |
| TYPE_BOSTON) |
| |
| #define FDT_IRQ_TYPE_NONE 0 |
| #define FDT_IRQ_TYPE_LEVEL_HIGH 4 |
| #define FDT_GIC_SHARED 0 |
| #define FDT_GIC_LOCAL 1 |
| #define FDT_BOSTON_CLK_SYS 1 |
| #define FDT_BOSTON_CLK_CPU 2 |
| #define FDT_PCI_IRQ_MAP_PINS 4 |
| #define FDT_PCI_IRQ_MAP_DESCS 6 |
| |
| struct BostonState { |
| SysBusDevice parent_obj; |
| |
| MachineState *mach; |
| MIPSCPSState cps; |
| SerialMM *uart; |
| Clock *cpuclk; |
| |
| CharBackend lcd_display; |
| char lcd_content[8]; |
| bool lcd_inited; |
| |
| hwaddr kernel_entry; |
| hwaddr fdt_base; |
| }; |
| |
| enum { |
| BOSTON_LOWDDR, |
| BOSTON_PCIE0, |
| BOSTON_PCIE1, |
| BOSTON_PCIE2, |
| BOSTON_PCIE2_MMIO, |
| BOSTON_CM, |
| BOSTON_GIC, |
| BOSTON_CDMM, |
| BOSTON_CPC, |
| BOSTON_PLATREG, |
| BOSTON_UART, |
| BOSTON_LCD, |
| BOSTON_FLASH, |
| BOSTON_PCIE1_MMIO, |
| BOSTON_PCIE0_MMIO, |
| BOSTON_HIGHDDR, |
| }; |
| |
| static const MemMapEntry boston_memmap[] = { |
| [BOSTON_LOWDDR] = { 0x0, 0x10000000 }, |
| [BOSTON_PCIE0] = { 0x10000000, 0x2000000 }, |
| [BOSTON_PCIE1] = { 0x12000000, 0x2000000 }, |
| [BOSTON_PCIE2] = { 0x14000000, 0x2000000 }, |
| [BOSTON_PCIE2_MMIO] = { 0x16000000, 0x100000 }, |
| [BOSTON_CM] = { 0x16100000, 0x20000 }, |
| [BOSTON_GIC] = { 0x16120000, 0x20000 }, |
| [BOSTON_CDMM] = { 0x16140000, 0x8000 }, |
| [BOSTON_CPC] = { 0x16200000, 0x8000 }, |
| [BOSTON_PLATREG] = { 0x17ffd000, 0x1000 }, |
| [BOSTON_UART] = { 0x17ffe000, 0x20 }, |
| [BOSTON_LCD] = { 0x17fff000, 0x8 }, |
| [BOSTON_FLASH] = { 0x18000000, 0x8000000 }, |
| [BOSTON_PCIE1_MMIO] = { 0x20000000, 0x20000000 }, |
| [BOSTON_PCIE0_MMIO] = { 0x40000000, 0x40000000 }, |
| [BOSTON_HIGHDDR] = { 0x80000000, 0x0 }, |
| }; |
| |
| enum boston_plat_reg { |
| PLAT_FPGA_BUILD = 0x00, |
| PLAT_CORE_CL = 0x04, |
| PLAT_WRAPPER_CL = 0x08, |
| PLAT_SYSCLK_STATUS = 0x0c, |
| PLAT_SOFTRST_CTL = 0x10, |
| #define PLAT_SOFTRST_CTL_SYSRESET (1 << 4) |
| PLAT_DDR3_STATUS = 0x14, |
| #define PLAT_DDR3_STATUS_LOCKED (1 << 0) |
| #define PLAT_DDR3_STATUS_CALIBRATED (1 << 2) |
| PLAT_PCIE_STATUS = 0x18, |
| #define PLAT_PCIE_STATUS_PCIE0_LOCKED (1 << 0) |
| #define PLAT_PCIE_STATUS_PCIE1_LOCKED (1 << 8) |
| #define PLAT_PCIE_STATUS_PCIE2_LOCKED (1 << 16) |
| PLAT_FLASH_CTL = 0x1c, |
| PLAT_SPARE0 = 0x20, |
| PLAT_SPARE1 = 0x24, |
| PLAT_SPARE2 = 0x28, |
| PLAT_SPARE3 = 0x2c, |
| PLAT_MMCM_DIV = 0x30, |
| #define PLAT_MMCM_DIV_CLK0DIV_SHIFT 0 |
| #define PLAT_MMCM_DIV_INPUT_SHIFT 8 |
| #define PLAT_MMCM_DIV_MUL_SHIFT 16 |
| #define PLAT_MMCM_DIV_CLK1DIV_SHIFT 24 |
| PLAT_BUILD_CFG = 0x34, |
| #define PLAT_BUILD_CFG_IOCU_EN (1 << 0) |
| #define PLAT_BUILD_CFG_PCIE0_EN (1 << 1) |
| #define PLAT_BUILD_CFG_PCIE1_EN (1 << 2) |
| #define PLAT_BUILD_CFG_PCIE2_EN (1 << 3) |
| PLAT_DDR_CFG = 0x38, |
| #define PLAT_DDR_CFG_SIZE (0xf << 0) |
| #define PLAT_DDR_CFG_MHZ (0xfff << 4) |
| PLAT_NOC_PCIE0_ADDR = 0x3c, |
| PLAT_NOC_PCIE1_ADDR = 0x40, |
| PLAT_NOC_PCIE2_ADDR = 0x44, |
| PLAT_SYS_CTL = 0x48, |
| }; |
| |
| static void boston_lcd_event(void *opaque, QEMUChrEvent event) |
| { |
| BostonState *s = opaque; |
| if (event == CHR_EVENT_OPENED && !s->lcd_inited) { |
| qemu_chr_fe_printf(&s->lcd_display, " "); |
| s->lcd_inited = true; |
| } |
| } |
| |
| static uint64_t boston_lcd_read(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| BostonState *s = opaque; |
| uint64_t val = 0; |
| |
| switch (size) { |
| case 8: |
| val |= (uint64_t)s->lcd_content[(addr + 7) & 0x7] << 56; |
| val |= (uint64_t)s->lcd_content[(addr + 6) & 0x7] << 48; |
| val |= (uint64_t)s->lcd_content[(addr + 5) & 0x7] << 40; |
| val |= (uint64_t)s->lcd_content[(addr + 4) & 0x7] << 32; |
| /* fall through */ |
| case 4: |
| val |= (uint64_t)s->lcd_content[(addr + 3) & 0x7] << 24; |
| val |= (uint64_t)s->lcd_content[(addr + 2) & 0x7] << 16; |
| /* fall through */ |
| case 2: |
| val |= (uint64_t)s->lcd_content[(addr + 1) & 0x7] << 8; |
| /* fall through */ |
| case 1: |
| val |= (uint64_t)s->lcd_content[(addr + 0) & 0x7]; |
| break; |
| } |
| |
| return val; |
| } |
| |
| static void boston_lcd_write(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| BostonState *s = opaque; |
| |
| switch (size) { |
| case 8: |
| s->lcd_content[(addr + 7) & 0x7] = val >> 56; |
| s->lcd_content[(addr + 6) & 0x7] = val >> 48; |
| s->lcd_content[(addr + 5) & 0x7] = val >> 40; |
| s->lcd_content[(addr + 4) & 0x7] = val >> 32; |
| /* fall through */ |
| case 4: |
| s->lcd_content[(addr + 3) & 0x7] = val >> 24; |
| s->lcd_content[(addr + 2) & 0x7] = val >> 16; |
| /* fall through */ |
| case 2: |
| s->lcd_content[(addr + 1) & 0x7] = val >> 8; |
| /* fall through */ |
| case 1: |
| s->lcd_content[(addr + 0) & 0x7] = val; |
| break; |
| } |
| |
| qemu_chr_fe_printf(&s->lcd_display, |
| "\r%-8.8s", s->lcd_content); |
| } |
| |
| static const MemoryRegionOps boston_lcd_ops = { |
| .read = boston_lcd_read, |
| .write = boston_lcd_write, |
| .endianness = DEVICE_LITTLE_ENDIAN, |
| }; |
| |
| static uint64_t boston_platreg_read(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| BostonState *s = opaque; |
| uint32_t gic_freq, val; |
| |
| if (size != 4) { |
| qemu_log_mask(LOG_UNIMP, "%uB platform register read\n", size); |
| return 0; |
| } |
| |
| switch (addr & 0xffff) { |
| case PLAT_FPGA_BUILD: |
| case PLAT_CORE_CL: |
| case PLAT_WRAPPER_CL: |
| return 0; |
| case PLAT_DDR3_STATUS: |
| return PLAT_DDR3_STATUS_LOCKED | PLAT_DDR3_STATUS_CALIBRATED; |
| case PLAT_MMCM_DIV: |
| gic_freq = mips_gictimer_get_freq(s->cps.gic.gic_timer) / 1000000; |
| val = gic_freq << PLAT_MMCM_DIV_INPUT_SHIFT; |
| val |= 1 << PLAT_MMCM_DIV_MUL_SHIFT; |
| val |= 1 << PLAT_MMCM_DIV_CLK0DIV_SHIFT; |
| val |= 1 << PLAT_MMCM_DIV_CLK1DIV_SHIFT; |
| return val; |
| case PLAT_BUILD_CFG: |
| val = PLAT_BUILD_CFG_PCIE0_EN; |
| val |= PLAT_BUILD_CFG_PCIE1_EN; |
| val |= PLAT_BUILD_CFG_PCIE2_EN; |
| return val; |
| case PLAT_DDR_CFG: |
| val = s->mach->ram_size / GiB; |
| assert(!(val & ~PLAT_DDR_CFG_SIZE)); |
| val |= PLAT_DDR_CFG_MHZ; |
| return val; |
| default: |
| qemu_log_mask(LOG_UNIMP, "Read platform register 0x%" HWADDR_PRIx "\n", |
| addr & 0xffff); |
| return 0; |
| } |
| } |
| |
| static void boston_platreg_write(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| if (size != 4) { |
| qemu_log_mask(LOG_UNIMP, "%uB platform register write\n", size); |
| return; |
| } |
| |
| switch (addr & 0xffff) { |
| case PLAT_FPGA_BUILD: |
| case PLAT_CORE_CL: |
| case PLAT_WRAPPER_CL: |
| case PLAT_DDR3_STATUS: |
| case PLAT_PCIE_STATUS: |
| case PLAT_MMCM_DIV: |
| case PLAT_BUILD_CFG: |
| case PLAT_DDR_CFG: |
| /* read only */ |
| break; |
| case PLAT_SOFTRST_CTL: |
| if (val & PLAT_SOFTRST_CTL_SYSRESET) { |
| qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); |
| } |
| break; |
| default: |
| qemu_log_mask(LOG_UNIMP, "Write platform register 0x%" HWADDR_PRIx |
| " = 0x%" PRIx64 "\n", addr & 0xffff, val); |
| break; |
| } |
| } |
| |
| static const MemoryRegionOps boston_platreg_ops = { |
| .read = boston_platreg_read, |
| .write = boston_platreg_write, |
| .endianness = DEVICE_LITTLE_ENDIAN, |
| }; |
| |
| static void mips_boston_instance_init(Object *obj) |
| { |
| BostonState *s = BOSTON(obj); |
| |
| s->cpuclk = qdev_init_clock_out(DEVICE(obj), "cpu-refclk"); |
| clock_set_hz(s->cpuclk, 1000000000); /* 1 GHz */ |
| } |
| |
| static const TypeInfo boston_device = { |
| .name = TYPE_BOSTON, |
| .parent = TYPE_SYS_BUS_DEVICE, |
| .instance_size = sizeof(BostonState), |
| .instance_init = mips_boston_instance_init, |
| }; |
| |
| static void boston_register_types(void) |
| { |
| type_register_static(&boston_device); |
| } |
| type_init(boston_register_types) |
| |
| static void gen_firmware(void *p, hwaddr kernel_entry, hwaddr fdt_addr) |
| { |
| uint64_t regaddr; |
| |
| /* Move CM GCRs */ |
| regaddr = cpu_mips_phys_to_kseg1(NULL, GCR_BASE_ADDR + GCR_BASE_OFS), |
| bl_gen_write_ulong(&p, regaddr, |
| boston_memmap[BOSTON_CM].base); |
| |
| /* Move & enable GIC GCRs */ |
| regaddr = cpu_mips_phys_to_kseg1(NULL, boston_memmap[BOSTON_CM].base |
| + GCR_GIC_BASE_OFS), |
| bl_gen_write_ulong(&p, regaddr, |
| boston_memmap[BOSTON_GIC].base | GCR_GIC_BASE_GICEN_MSK); |
| |
| /* Move & enable CPC GCRs */ |
| regaddr = cpu_mips_phys_to_kseg1(NULL, boston_memmap[BOSTON_CM].base |
| + GCR_CPC_BASE_OFS), |
| bl_gen_write_ulong(&p, regaddr, |
| boston_memmap[BOSTON_CPC].base | GCR_CPC_BASE_CPCEN_MSK); |
| |
| /* |
| * Setup argument registers to follow the UHI boot protocol: |
| * |
| * a0/$4 = -2 |
| * a1/$5 = virtual address of FDT |
| * a2/$6 = 0 |
| * a3/$7 = 0 |
| */ |
| bl_gen_jump_kernel(&p, |
| true, 0, true, (int32_t)-2, |
| true, fdt_addr, true, 0, true, 0, |
| kernel_entry); |
| } |
| |
| static void *boston_fdt_filter(void *opaque, const void *fdt_orig, |
| const void *match_data, hwaddr *load_addr) |
| { |
| BostonState *s = BOSTON(opaque); |
| MachineState *machine = s->mach; |
| const char *cmdline; |
| int err; |
| size_t ram_low_sz, ram_high_sz; |
| size_t fdt_sz = fdt_totalsize(fdt_orig) * 2; |
| g_autofree void *fdt = g_malloc0(fdt_sz); |
| uint8_t rng_seed[32]; |
| |
| err = fdt_open_into(fdt_orig, fdt, fdt_sz); |
| if (err) { |
| fprintf(stderr, "unable to open FDT\n"); |
| return NULL; |
| } |
| |
| qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed)); |
| qemu_fdt_setprop(fdt, "/chosen", "rng-seed", rng_seed, sizeof(rng_seed)); |
| |
| cmdline = (machine->kernel_cmdline && machine->kernel_cmdline[0]) |
| ? machine->kernel_cmdline : " "; |
| err = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); |
| if (err < 0) { |
| fprintf(stderr, "couldn't set /chosen/bootargs\n"); |
| return NULL; |
| } |
| |
| ram_low_sz = MIN(256 * MiB, machine->ram_size); |
| ram_high_sz = machine->ram_size - ram_low_sz; |
| qemu_fdt_setprop_sized_cells(fdt, "/memory@0", "reg", |
| 1, boston_memmap[BOSTON_LOWDDR].base, 1, ram_low_sz, |
| 1, boston_memmap[BOSTON_HIGHDDR].base + ram_low_sz, |
| 1, ram_high_sz); |
| |
| fdt = g_realloc(fdt, fdt_totalsize(fdt)); |
| |
| s->fdt_base = *load_addr; |
| |
| return g_steal_pointer(&fdt); |
| } |
| |
| static const void *boston_kernel_filter(void *opaque, const void *kernel, |
| hwaddr *load_addr, hwaddr *entry_addr) |
| { |
| BostonState *s = BOSTON(opaque); |
| |
| s->kernel_entry = *entry_addr; |
| |
| return kernel; |
| } |
| |
| static const struct fit_loader_match boston_matches[] = { |
| { "img,boston" }, |
| { NULL }, |
| }; |
| |
| static const struct fit_loader boston_fit_loader = { |
| .matches = boston_matches, |
| .addr_to_phys = cpu_mips_kseg0_to_phys, |
| .fdt_filter = boston_fdt_filter, |
| .kernel_filter = boston_kernel_filter, |
| }; |
| |
| static inline XilinxPCIEHost * |
| xilinx_pcie_init(MemoryRegion *sys_mem, uint32_t bus_nr, |
| hwaddr cfg_base, uint64_t cfg_size, |
| hwaddr mmio_base, uint64_t mmio_size, |
| qemu_irq irq) |
| { |
| DeviceState *dev; |
| MemoryRegion *cfg, *mmio; |
| |
| dev = qdev_new(TYPE_XILINX_PCIE_HOST); |
| |
| qdev_prop_set_uint32(dev, "bus_nr", bus_nr); |
| qdev_prop_set_uint64(dev, "cfg_base", cfg_base); |
| qdev_prop_set_uint64(dev, "cfg_size", cfg_size); |
| qdev_prop_set_uint64(dev, "mmio_base", mmio_base); |
| qdev_prop_set_uint64(dev, "mmio_size", mmio_size); |
| |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| |
| cfg = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0); |
| memory_region_add_subregion_overlap(sys_mem, cfg_base, cfg, 0); |
| |
| mmio = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1); |
| memory_region_add_subregion_overlap(sys_mem, 0, mmio, 0); |
| |
| qdev_connect_gpio_out_named(dev, "interrupt_out", 0, irq); |
| |
| return XILINX_PCIE_HOST(dev); |
| } |
| |
| |
| static void fdt_create_pcie(void *fdt, int gic_ph, int irq, hwaddr reg_base, |
| hwaddr reg_size, hwaddr mmio_base, hwaddr mmio_size) |
| { |
| int i; |
| char *name, *intc_name; |
| uint32_t intc_ph; |
| uint32_t interrupt_map[FDT_PCI_IRQ_MAP_PINS][FDT_PCI_IRQ_MAP_DESCS]; |
| |
| intc_ph = qemu_fdt_alloc_phandle(fdt); |
| name = g_strdup_printf("/soc/pci@%" HWADDR_PRIx, reg_base); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", |
| "xlnx,axi-pcie-host-1.00.a"); |
| qemu_fdt_setprop_string(fdt, name, "device_type", "pci"); |
| qemu_fdt_setprop_cells(fdt, name, "reg", reg_base, reg_size); |
| |
| qemu_fdt_setprop_cell(fdt, name, "#address-cells", 3); |
| qemu_fdt_setprop_cell(fdt, name, "#size-cells", 2); |
| qemu_fdt_setprop_cell(fdt, name, "#interrupt-cells", 1); |
| |
| qemu_fdt_setprop_cell(fdt, name, "interrupt-parent", gic_ph); |
| qemu_fdt_setprop_cells(fdt, name, "interrupts", FDT_GIC_SHARED, irq, |
| FDT_IRQ_TYPE_LEVEL_HIGH); |
| |
| qemu_fdt_setprop_cells(fdt, name, "ranges", 0x02000000, 0, mmio_base, |
| mmio_base, 0, mmio_size); |
| qemu_fdt_setprop_cells(fdt, name, "bus-range", 0x00, 0xff); |
| |
| |
| |
| intc_name = g_strdup_printf("%s/interrupt-controller", name); |
| qemu_fdt_add_subnode(fdt, intc_name); |
| qemu_fdt_setprop(fdt, intc_name, "interrupt-controller", NULL, 0); |
| qemu_fdt_setprop_cell(fdt, intc_name, "#address-cells", 0); |
| qemu_fdt_setprop_cell(fdt, intc_name, "#interrupt-cells", 1); |
| qemu_fdt_setprop_cell(fdt, intc_name, "phandle", intc_ph); |
| |
| qemu_fdt_setprop_cells(fdt, name, "interrupt-map-mask", 0, 0, 0, 7); |
| for (i = 0; i < FDT_PCI_IRQ_MAP_PINS; i++) { |
| uint32_t *irqmap = interrupt_map[i]; |
| |
| irqmap[0] = cpu_to_be32(0); |
| irqmap[1] = cpu_to_be32(0); |
| irqmap[2] = cpu_to_be32(0); |
| irqmap[3] = cpu_to_be32(i + 1); |
| irqmap[4] = cpu_to_be32(intc_ph); |
| irqmap[5] = cpu_to_be32(i + 1); |
| } |
| qemu_fdt_setprop(fdt, name, "interrupt-map", |
| &interrupt_map, sizeof(interrupt_map)); |
| |
| g_free(intc_name); |
| g_free(name); |
| } |
| |
| static const void *create_fdt(BostonState *s, |
| const MemMapEntry *memmap, int *dt_size) |
| { |
| void *fdt; |
| int cpu; |
| MachineState *ms = s->mach; |
| uint32_t platreg_ph, gic_ph, clk_ph; |
| char *name, *gic_name, *platreg_name, *stdout_name; |
| static const char * const syscon_compat[2] = { |
| "img,boston-platform-regs", "syscon" |
| }; |
| |
| fdt = create_device_tree(dt_size); |
| if (!fdt) { |
| error_report("create_device_tree() failed"); |
| exit(1); |
| } |
| |
| platreg_ph = qemu_fdt_alloc_phandle(fdt); |
| gic_ph = qemu_fdt_alloc_phandle(fdt); |
| clk_ph = qemu_fdt_alloc_phandle(fdt); |
| |
| qemu_fdt_setprop_string(fdt, "/", "model", "img,boston"); |
| qemu_fdt_setprop_string(fdt, "/", "compatible", "img,boston"); |
| qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x1); |
| qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x1); |
| |
| |
| qemu_fdt_add_subnode(fdt, "/cpus"); |
| qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0); |
| qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1); |
| |
| for (cpu = 0; cpu < ms->smp.cpus; cpu++) { |
| name = g_strdup_printf("/cpus/cpu@%d", cpu); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "img,mips"); |
| qemu_fdt_setprop_string(fdt, name, "status", "okay"); |
| qemu_fdt_setprop_cell(fdt, name, "reg", cpu); |
| qemu_fdt_setprop_string(fdt, name, "device_type", "cpu"); |
| qemu_fdt_setprop_cells(fdt, name, "clocks", clk_ph, FDT_BOSTON_CLK_CPU); |
| g_free(name); |
| } |
| |
| qemu_fdt_add_subnode(fdt, "/soc"); |
| qemu_fdt_setprop(fdt, "/soc", "ranges", NULL, 0); |
| qemu_fdt_setprop_string(fdt, "/soc", "compatible", "simple-bus"); |
| qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x1); |
| qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x1); |
| |
| fdt_create_pcie(fdt, gic_ph, 2, |
| memmap[BOSTON_PCIE0].base, memmap[BOSTON_PCIE0].size, |
| memmap[BOSTON_PCIE0_MMIO].base, memmap[BOSTON_PCIE0_MMIO].size); |
| |
| fdt_create_pcie(fdt, gic_ph, 1, |
| memmap[BOSTON_PCIE1].base, memmap[BOSTON_PCIE1].size, |
| memmap[BOSTON_PCIE1_MMIO].base, memmap[BOSTON_PCIE1_MMIO].size); |
| |
| fdt_create_pcie(fdt, gic_ph, 0, |
| memmap[BOSTON_PCIE2].base, memmap[BOSTON_PCIE2].size, |
| memmap[BOSTON_PCIE2_MMIO].base, memmap[BOSTON_PCIE2_MMIO].size); |
| |
| /* GIC with it's timer node */ |
| gic_name = g_strdup_printf("/soc/interrupt-controller@%" HWADDR_PRIx, |
| memmap[BOSTON_GIC].base); |
| qemu_fdt_add_subnode(fdt, gic_name); |
| qemu_fdt_setprop_string(fdt, gic_name, "compatible", "mti,gic"); |
| qemu_fdt_setprop_cells(fdt, gic_name, "reg", memmap[BOSTON_GIC].base, |
| memmap[BOSTON_GIC].size); |
| qemu_fdt_setprop(fdt, gic_name, "interrupt-controller", NULL, 0); |
| qemu_fdt_setprop_cell(fdt, gic_name, "#interrupt-cells", 3); |
| qemu_fdt_setprop_cell(fdt, gic_name, "phandle", gic_ph); |
| |
| name = g_strdup_printf("%s/timer", gic_name); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "mti,gic-timer"); |
| qemu_fdt_setprop_cells(fdt, name, "interrupts", FDT_GIC_LOCAL, 1, |
| FDT_IRQ_TYPE_NONE); |
| qemu_fdt_setprop_cells(fdt, name, "clocks", clk_ph, FDT_BOSTON_CLK_CPU); |
| g_free(name); |
| g_free(gic_name); |
| |
| /* CDMM node */ |
| name = g_strdup_printf("/soc/cdmm@%" HWADDR_PRIx, memmap[BOSTON_CDMM].base); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "mti,mips-cdmm"); |
| qemu_fdt_setprop_cells(fdt, name, "reg", memmap[BOSTON_CDMM].base, |
| memmap[BOSTON_CDMM].size); |
| g_free(name); |
| |
| /* CPC node */ |
| name = g_strdup_printf("/soc/cpc@%" HWADDR_PRIx, memmap[BOSTON_CPC].base); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "mti,mips-cpc"); |
| qemu_fdt_setprop_cells(fdt, name, "reg", memmap[BOSTON_CPC].base, |
| memmap[BOSTON_CPC].size); |
| g_free(name); |
| |
| /* platreg and it's clk node */ |
| platreg_name = g_strdup_printf("/soc/system-controller@%" HWADDR_PRIx, |
| memmap[BOSTON_PLATREG].base); |
| qemu_fdt_add_subnode(fdt, platreg_name); |
| qemu_fdt_setprop_string_array(fdt, platreg_name, "compatible", |
| (char **)&syscon_compat, |
| ARRAY_SIZE(syscon_compat)); |
| qemu_fdt_setprop_cells(fdt, platreg_name, "reg", |
| memmap[BOSTON_PLATREG].base, |
| memmap[BOSTON_PLATREG].size); |
| qemu_fdt_setprop_cell(fdt, platreg_name, "phandle", platreg_ph); |
| |
| name = g_strdup_printf("%s/clock", platreg_name); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "img,boston-clock"); |
| qemu_fdt_setprop_cell(fdt, name, "#clock-cells", 1); |
| qemu_fdt_setprop_cell(fdt, name, "phandle", clk_ph); |
| g_free(name); |
| g_free(platreg_name); |
| |
| /* reboot node */ |
| name = g_strdup_printf("/soc/reboot"); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "syscon-reboot"); |
| qemu_fdt_setprop_cell(fdt, name, "regmap", platreg_ph); |
| qemu_fdt_setprop_cell(fdt, name, "offset", 0x10); |
| qemu_fdt_setprop_cell(fdt, name, "mask", 0x10); |
| g_free(name); |
| |
| /* uart node */ |
| name = g_strdup_printf("/soc/uart@%" HWADDR_PRIx, memmap[BOSTON_UART].base); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "ns16550a"); |
| qemu_fdt_setprop_cells(fdt, name, "reg", memmap[BOSTON_UART].base, |
| memmap[BOSTON_UART].size); |
| qemu_fdt_setprop_cell(fdt, name, "reg-shift", 0x2); |
| qemu_fdt_setprop_cell(fdt, name, "interrupt-parent", gic_ph); |
| qemu_fdt_setprop_cells(fdt, name, "interrupts", FDT_GIC_SHARED, 3, |
| FDT_IRQ_TYPE_LEVEL_HIGH); |
| qemu_fdt_setprop_cells(fdt, name, "clocks", clk_ph, FDT_BOSTON_CLK_SYS); |
| |
| qemu_fdt_add_subnode(fdt, "/chosen"); |
| stdout_name = g_strdup_printf("%s:115200", name); |
| qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", stdout_name); |
| g_free(stdout_name); |
| g_free(name); |
| |
| /* lcd node */ |
| name = g_strdup_printf("/soc/lcd@%" HWADDR_PRIx, memmap[BOSTON_LCD].base); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "compatible", "img,boston-lcd"); |
| qemu_fdt_setprop_cells(fdt, name, "reg", memmap[BOSTON_LCD].base, |
| memmap[BOSTON_LCD].size); |
| g_free(name); |
| |
| name = g_strdup_printf("/memory@0"); |
| qemu_fdt_add_subnode(fdt, name); |
| qemu_fdt_setprop_string(fdt, name, "device_type", "memory"); |
| g_free(name); |
| |
| return fdt; |
| } |
| |
| static void boston_mach_init(MachineState *machine) |
| { |
| DeviceState *dev; |
| BostonState *s; |
| MemoryRegion *flash, *ddr_low_alias, *lcd, *platreg; |
| MemoryRegion *sys_mem = get_system_memory(); |
| XilinxPCIEHost *pcie2; |
| PCIDevice *pdev; |
| AHCIPCIState *ich9; |
| DriveInfo *hd[6]; |
| Chardev *chr; |
| int fw_size, fit_err; |
| |
| if ((machine->ram_size % GiB) || |
| (machine->ram_size > (2 * GiB))) { |
| error_report("Memory size must be 1GB or 2GB"); |
| exit(1); |
| } |
| |
| dev = qdev_new(TYPE_BOSTON); |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| |
| s = BOSTON(dev); |
| s->mach = machine; |
| |
| if (!cpu_type_supports_cps_smp(machine->cpu_type)) { |
| error_report("Boston requires CPUs which support CPS"); |
| exit(1); |
| } |
| |
| object_initialize_child(OBJECT(machine), "cps", &s->cps, TYPE_MIPS_CPS); |
| object_property_set_str(OBJECT(&s->cps), "cpu-type", machine->cpu_type, |
| &error_fatal); |
| object_property_set_uint(OBJECT(&s->cps), "num-vp", machine->smp.cpus, |
| &error_fatal); |
| qdev_connect_clock_in(DEVICE(&s->cps), "clk-in", |
| qdev_get_clock_out(dev, "cpu-refclk")); |
| sysbus_realize(SYS_BUS_DEVICE(&s->cps), &error_fatal); |
| |
| sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->cps), 0, 0, 1); |
| |
| flash = g_new(MemoryRegion, 1); |
| memory_region_init_rom(flash, NULL, "boston.flash", |
| boston_memmap[BOSTON_FLASH].size, &error_fatal); |
| memory_region_add_subregion_overlap(sys_mem, |
| boston_memmap[BOSTON_FLASH].base, |
| flash, 0); |
| |
| memory_region_add_subregion_overlap(sys_mem, |
| boston_memmap[BOSTON_HIGHDDR].base, |
| machine->ram, 0); |
| |
| ddr_low_alias = g_new(MemoryRegion, 1); |
| memory_region_init_alias(ddr_low_alias, NULL, "boston_low.ddr", |
| machine->ram, 0, |
| MIN(machine->ram_size, (256 * MiB))); |
| memory_region_add_subregion_overlap(sys_mem, 0, ddr_low_alias, 0); |
| |
| xilinx_pcie_init(sys_mem, 0, |
| boston_memmap[BOSTON_PCIE0].base, |
| boston_memmap[BOSTON_PCIE0].size, |
| boston_memmap[BOSTON_PCIE0_MMIO].base, |
| boston_memmap[BOSTON_PCIE0_MMIO].size, |
| get_cps_irq(&s->cps, 2)); |
| |
| xilinx_pcie_init(sys_mem, 1, |
| boston_memmap[BOSTON_PCIE1].base, |
| boston_memmap[BOSTON_PCIE1].size, |
| boston_memmap[BOSTON_PCIE1_MMIO].base, |
| boston_memmap[BOSTON_PCIE1_MMIO].size, |
| get_cps_irq(&s->cps, 1)); |
| |
| pcie2 = xilinx_pcie_init(sys_mem, 2, |
| boston_memmap[BOSTON_PCIE2].base, |
| boston_memmap[BOSTON_PCIE2].size, |
| boston_memmap[BOSTON_PCIE2_MMIO].base, |
| boston_memmap[BOSTON_PCIE2_MMIO].size, |
| get_cps_irq(&s->cps, 0)); |
| |
| platreg = g_new(MemoryRegion, 1); |
| memory_region_init_io(platreg, NULL, &boston_platreg_ops, s, |
| "boston-platregs", |
| boston_memmap[BOSTON_PLATREG].size); |
| memory_region_add_subregion_overlap(sys_mem, |
| boston_memmap[BOSTON_PLATREG].base, platreg, 0); |
| |
| s->uart = serial_mm_init(sys_mem, boston_memmap[BOSTON_UART].base, 2, |
| get_cps_irq(&s->cps, 3), 10000000, |
| serial_hd(0), DEVICE_LITTLE_ENDIAN); |
| |
| lcd = g_new(MemoryRegion, 1); |
| memory_region_init_io(lcd, NULL, &boston_lcd_ops, s, "boston-lcd", 0x8); |
| memory_region_add_subregion_overlap(sys_mem, |
| boston_memmap[BOSTON_LCD].base, lcd, 0); |
| |
| chr = qemu_chr_new("lcd", "vc:320x240", NULL); |
| qemu_chr_fe_init(&s->lcd_display, chr, NULL); |
| qemu_chr_fe_set_handlers(&s->lcd_display, NULL, NULL, |
| boston_lcd_event, NULL, s, NULL, true); |
| |
| pdev = pci_create_simple_multifunction(&PCI_BRIDGE(&pcie2->root)->sec_bus, |
| PCI_DEVFN(0, 0), TYPE_ICH9_AHCI); |
| ich9 = ICH9_AHCI(pdev); |
| g_assert(ARRAY_SIZE(hd) == ich9->ahci.ports); |
| ide_drive_get(hd, ich9->ahci.ports); |
| ahci_ide_create_devs(&ich9->ahci, hd); |
| |
| if (machine->firmware) { |
| fw_size = load_image_targphys(machine->firmware, |
| 0x1fc00000, 4 * MiB); |
| if (fw_size == -1) { |
| error_report("unable to load firmware image '%s'", |
| machine->firmware); |
| exit(1); |
| } |
| } else if (machine->kernel_filename) { |
| uint64_t kernel_entry, kernel_high; |
| ssize_t kernel_size; |
| |
| kernel_size = load_elf(machine->kernel_filename, NULL, |
| cpu_mips_kseg0_to_phys, NULL, |
| &kernel_entry, NULL, &kernel_high, |
| NULL, ELFDATA2LSB, EM_MIPS, 1, 0); |
| |
| if (kernel_size > 0) { |
| int dt_size; |
| g_autofree const void *dtb_file_data = NULL; |
| void *dtb_load_data = NULL; |
| hwaddr dtb_paddr = QEMU_ALIGN_UP(kernel_high, 64 * KiB); |
| hwaddr dtb_vaddr = cpu_mips_phys_to_kseg0(NULL, dtb_paddr); |
| |
| s->kernel_entry = kernel_entry; |
| if (machine->dtb) { |
| dtb_file_data = load_device_tree(machine->dtb, &dt_size); |
| } else { |
| dtb_file_data = create_fdt(s, boston_memmap, &dt_size); |
| } |
| |
| dtb_load_data = boston_fdt_filter(s, dtb_file_data, |
| NULL, &dtb_vaddr); |
| if (!dtb_load_data) { |
| /* boston_fdt_filter() already printed the error for us */ |
| exit(1); |
| } |
| |
| machine->fdt = dtb_load_data; |
| |
| /* Calculate real fdt size after filter */ |
| dt_size = fdt_totalsize(dtb_load_data); |
| rom_add_blob_fixed("dtb", dtb_load_data, dt_size, dtb_paddr); |
| qemu_register_reset_nosnapshotload(qemu_fdt_randomize_seeds, |
| rom_ptr(dtb_paddr, dt_size)); |
| } else { |
| /* Try to load file as FIT */ |
| fit_err = load_fit(&boston_fit_loader, machine->kernel_filename, |
| &machine->fdt, s); |
| if (fit_err) { |
| error_report("unable to load kernel image"); |
| exit(1); |
| } |
| } |
| |
| gen_firmware(memory_region_get_ram_ptr(flash) + 0x7c00000, |
| s->kernel_entry, s->fdt_base); |
| } else if (!qtest_enabled()) { |
| error_report("Please provide either a -kernel or -bios argument"); |
| exit(1); |
| } |
| } |
| |
| static void boston_mach_class_init(MachineClass *mc) |
| { |
| mc->desc = "MIPS Boston"; |
| mc->init = boston_mach_init; |
| mc->block_default_type = IF_IDE; |
| mc->default_ram_size = 1 * GiB; |
| mc->default_ram_id = "boston.ddr"; |
| mc->max_cpus = 16; |
| mc->default_cpu_type = MIPS_CPU_TYPE_NAME("I6400"); |
| } |
| |
| DEFINE_MACHINE("boston", boston_mach_class_init) |
