| /* |
| * QEMU PowerPC e500-based platforms |
| * |
| * Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved. |
| * |
| * Author: Yu Liu, <yu.liu@freescale.com> |
| * |
| * This file is derived from hw/ppc440_bamboo.c, |
| * the copyright for that material belongs to the original owners. |
| * |
| * This 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. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/units.h" |
| #include "qapi/error.h" |
| #include "e500.h" |
| #include "e500-ccsr.h" |
| #include "net/net.h" |
| #include "qemu/config-file.h" |
| #include "hw/hw.h" |
| #include "hw/char/serial.h" |
| #include "hw/pci/pci.h" |
| #include "hw/boards.h" |
| #include "sysemu/sysemu.h" |
| #include "sysemu/kvm.h" |
| #include "kvm_ppc.h" |
| #include "sysemu/device_tree.h" |
| #include "hw/ppc/openpic.h" |
| #include "hw/ppc/openpic_kvm.h" |
| #include "hw/ppc/ppc.h" |
| #include "hw/loader.h" |
| #include "elf.h" |
| #include "hw/sysbus.h" |
| #include "exec/address-spaces.h" |
| #include "qemu/host-utils.h" |
| #include "qemu/option.h" |
| #include "hw/pci-host/ppce500.h" |
| #include "qemu/error-report.h" |
| #include "hw/platform-bus.h" |
| #include "hw/net/fsl_etsec/etsec.h" |
| |
| #define EPAPR_MAGIC (0x45504150) |
| #define BINARY_DEVICE_TREE_FILE "mpc8544ds.dtb" |
| #define DTC_LOAD_PAD 0x1800000 |
| #define DTC_PAD_MASK 0xFFFFF |
| #define DTB_MAX_SIZE (8 * MiB) |
| #define INITRD_LOAD_PAD 0x2000000 |
| #define INITRD_PAD_MASK 0xFFFFFF |
| |
| #define RAM_SIZES_ALIGN (64 * MiB) |
| |
| /* TODO: parameterize */ |
| #define MPC8544_CCSRBAR_SIZE 0x00100000ULL |
| #define MPC8544_MPIC_REGS_OFFSET 0x40000ULL |
| #define MPC8544_MSI_REGS_OFFSET 0x41600ULL |
| #define MPC8544_SERIAL0_REGS_OFFSET 0x4500ULL |
| #define MPC8544_SERIAL1_REGS_OFFSET 0x4600ULL |
| #define MPC8544_PCI_REGS_OFFSET 0x8000ULL |
| #define MPC8544_PCI_REGS_SIZE 0x1000ULL |
| #define MPC8544_UTIL_OFFSET 0xe0000ULL |
| #define MPC8XXX_GPIO_OFFSET 0x000FF000ULL |
| #define MPC8XXX_GPIO_IRQ 47 |
| |
| struct boot_info |
| { |
| uint32_t dt_base; |
| uint32_t dt_size; |
| uint32_t entry; |
| }; |
| |
| static uint32_t *pci_map_create(void *fdt, uint32_t mpic, int first_slot, |
| int nr_slots, int *len) |
| { |
| int i = 0; |
| int slot; |
| int pci_irq; |
| int host_irq; |
| int last_slot = first_slot + nr_slots; |
| uint32_t *pci_map; |
| |
| *len = nr_slots * 4 * 7 * sizeof(uint32_t); |
| pci_map = g_malloc(*len); |
| |
| for (slot = first_slot; slot < last_slot; slot++) { |
| for (pci_irq = 0; pci_irq < 4; pci_irq++) { |
| pci_map[i++] = cpu_to_be32(slot << 11); |
| pci_map[i++] = cpu_to_be32(0x0); |
| pci_map[i++] = cpu_to_be32(0x0); |
| pci_map[i++] = cpu_to_be32(pci_irq + 1); |
| pci_map[i++] = cpu_to_be32(mpic); |
| host_irq = ppce500_pci_map_irq_slot(slot, pci_irq); |
| pci_map[i++] = cpu_to_be32(host_irq + 1); |
| pci_map[i++] = cpu_to_be32(0x1); |
| } |
| } |
| |
| assert((i * sizeof(uint32_t)) == *len); |
| |
| return pci_map; |
| } |
| |
| static void dt_serial_create(void *fdt, unsigned long long offset, |
| const char *soc, const char *mpic, |
| const char *alias, int idx, bool defcon) |
| { |
| char *ser; |
| |
| ser = g_strdup_printf("%s/serial@%llx", soc, offset); |
| qemu_fdt_add_subnode(fdt, ser); |
| qemu_fdt_setprop_string(fdt, ser, "device_type", "serial"); |
| qemu_fdt_setprop_string(fdt, ser, "compatible", "ns16550"); |
| qemu_fdt_setprop_cells(fdt, ser, "reg", offset, 0x100); |
| qemu_fdt_setprop_cell(fdt, ser, "cell-index", idx); |
| qemu_fdt_setprop_cell(fdt, ser, "clock-frequency", 0); |
| qemu_fdt_setprop_cells(fdt, ser, "interrupts", 42, 2); |
| qemu_fdt_setprop_phandle(fdt, ser, "interrupt-parent", mpic); |
| qemu_fdt_setprop_string(fdt, "/aliases", alias, ser); |
| |
| if (defcon) { |
| /* |
| * "linux,stdout-path" and "stdout" properties are deprecated by linux |
| * kernel. New platforms should only use the "stdout-path" property. Set |
| * the new property and continue using older property to remain |
| * compatible with the existing firmware. |
| */ |
| qemu_fdt_setprop_string(fdt, "/chosen", "linux,stdout-path", ser); |
| qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", ser); |
| } |
| g_free(ser); |
| } |
| |
| static void create_dt_mpc8xxx_gpio(void *fdt, const char *soc, const char *mpic) |
| { |
| hwaddr mmio0 = MPC8XXX_GPIO_OFFSET; |
| int irq0 = MPC8XXX_GPIO_IRQ; |
| gchar *node = g_strdup_printf("%s/gpio@%"PRIx64, soc, mmio0); |
| gchar *poweroff = g_strdup_printf("%s/power-off", soc); |
| int gpio_ph; |
| |
| qemu_fdt_add_subnode(fdt, node); |
| qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,qoriq-gpio"); |
| qemu_fdt_setprop_cells(fdt, node, "reg", mmio0, 0x1000); |
| qemu_fdt_setprop_cells(fdt, node, "interrupts", irq0, 0x2); |
| qemu_fdt_setprop_phandle(fdt, node, "interrupt-parent", mpic); |
| qemu_fdt_setprop_cells(fdt, node, "#gpio-cells", 2); |
| qemu_fdt_setprop(fdt, node, "gpio-controller", NULL, 0); |
| gpio_ph = qemu_fdt_alloc_phandle(fdt); |
| qemu_fdt_setprop_cell(fdt, node, "phandle", gpio_ph); |
| qemu_fdt_setprop_cell(fdt, node, "linux,phandle", gpio_ph); |
| |
| /* Power Off Pin */ |
| qemu_fdt_add_subnode(fdt, poweroff); |
| qemu_fdt_setprop_string(fdt, poweroff, "compatible", "gpio-poweroff"); |
| qemu_fdt_setprop_cells(fdt, poweroff, "gpios", gpio_ph, 0, 0); |
| |
| g_free(node); |
| g_free(poweroff); |
| } |
| |
| typedef struct PlatformDevtreeData { |
| void *fdt; |
| const char *mpic; |
| int irq_start; |
| const char *node; |
| PlatformBusDevice *pbus; |
| } PlatformDevtreeData; |
| |
| static int create_devtree_etsec(SysBusDevice *sbdev, PlatformDevtreeData *data) |
| { |
| eTSEC *etsec = ETSEC_COMMON(sbdev); |
| PlatformBusDevice *pbus = data->pbus; |
| hwaddr mmio0 = platform_bus_get_mmio_addr(pbus, sbdev, 0); |
| int irq0 = platform_bus_get_irqn(pbus, sbdev, 0); |
| int irq1 = platform_bus_get_irqn(pbus, sbdev, 1); |
| int irq2 = platform_bus_get_irqn(pbus, sbdev, 2); |
| gchar *node = g_strdup_printf("/platform/ethernet@%"PRIx64, mmio0); |
| gchar *group = g_strdup_printf("%s/queue-group", node); |
| void *fdt = data->fdt; |
| |
| assert((int64_t)mmio0 >= 0); |
| assert(irq0 >= 0); |
| assert(irq1 >= 0); |
| assert(irq2 >= 0); |
| |
| qemu_fdt_add_subnode(fdt, node); |
| qemu_fdt_setprop_string(fdt, node, "device_type", "network"); |
| qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,etsec2"); |
| qemu_fdt_setprop_string(fdt, node, "model", "eTSEC"); |
| qemu_fdt_setprop(fdt, node, "local-mac-address", etsec->conf.macaddr.a, 6); |
| qemu_fdt_setprop_cells(fdt, node, "fixed-link", 0, 1, 1000, 0, 0); |
| |
| qemu_fdt_add_subnode(fdt, group); |
| qemu_fdt_setprop_cells(fdt, group, "reg", mmio0, 0x1000); |
| qemu_fdt_setprop_cells(fdt, group, "interrupts", |
| data->irq_start + irq0, 0x2, |
| data->irq_start + irq1, 0x2, |
| data->irq_start + irq2, 0x2); |
| |
| g_free(node); |
| g_free(group); |
| |
| return 0; |
| } |
| |
| static void sysbus_device_create_devtree(SysBusDevice *sbdev, void *opaque) |
| { |
| PlatformDevtreeData *data = opaque; |
| bool matched = false; |
| |
| if (object_dynamic_cast(OBJECT(sbdev), TYPE_ETSEC_COMMON)) { |
| create_devtree_etsec(sbdev, data); |
| matched = true; |
| } |
| |
| if (!matched) { |
| error_report("Device %s is not supported by this machine yet.", |
| qdev_fw_name(DEVICE(sbdev))); |
| exit(1); |
| } |
| } |
| |
| static void platform_bus_create_devtree(PPCE500MachineState *pms, |
| void *fdt, const char *mpic) |
| { |
| const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms); |
| gchar *node = g_strdup_printf("/platform@%"PRIx64, pmc->platform_bus_base); |
| const char platcomp[] = "qemu,platform\0simple-bus"; |
| uint64_t addr = pmc->platform_bus_base; |
| uint64_t size = pmc->platform_bus_size; |
| int irq_start = pmc->platform_bus_first_irq; |
| |
| /* Create a /platform node that we can put all devices into */ |
| |
| qemu_fdt_add_subnode(fdt, node); |
| qemu_fdt_setprop(fdt, node, "compatible", platcomp, sizeof(platcomp)); |
| |
| /* Our platform bus region is less than 32bit big, so 1 cell is enough for |
| address and size */ |
| qemu_fdt_setprop_cells(fdt, node, "#size-cells", 1); |
| qemu_fdt_setprop_cells(fdt, node, "#address-cells", 1); |
| qemu_fdt_setprop_cells(fdt, node, "ranges", 0, addr >> 32, addr, size); |
| |
| qemu_fdt_setprop_phandle(fdt, node, "interrupt-parent", mpic); |
| |
| /* Create dt nodes for dynamic devices */ |
| PlatformDevtreeData data = { |
| .fdt = fdt, |
| .mpic = mpic, |
| .irq_start = irq_start, |
| .node = node, |
| .pbus = pms->pbus_dev, |
| }; |
| |
| /* Loop through all dynamic sysbus devices and create nodes for them */ |
| foreach_dynamic_sysbus_device(sysbus_device_create_devtree, &data); |
| |
| g_free(node); |
| } |
| |
| static int ppce500_load_device_tree(PPCE500MachineState *pms, |
| hwaddr addr, |
| hwaddr initrd_base, |
| hwaddr initrd_size, |
| hwaddr kernel_base, |
| hwaddr kernel_size, |
| bool dry_run) |
| { |
| MachineState *machine = MACHINE(pms); |
| const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms); |
| CPUPPCState *env = first_cpu->env_ptr; |
| int ret = -1; |
| uint64_t mem_reg_property[] = { 0, cpu_to_be64(machine->ram_size) }; |
| int fdt_size; |
| void *fdt; |
| uint8_t hypercall[16]; |
| uint32_t clock_freq = 400000000; |
| uint32_t tb_freq = 400000000; |
| int i; |
| char compatible_sb[] = "fsl,mpc8544-immr\0simple-bus"; |
| char *soc; |
| char *mpic; |
| uint32_t mpic_ph; |
| uint32_t msi_ph; |
| char *gutil; |
| char *pci; |
| char *msi; |
| uint32_t *pci_map = NULL; |
| int len; |
| uint32_t pci_ranges[14] = |
| { |
| 0x2000000, 0x0, pmc->pci_mmio_bus_base, |
| pmc->pci_mmio_base >> 32, pmc->pci_mmio_base, |
| 0x0, 0x20000000, |
| |
| 0x1000000, 0x0, 0x0, |
| pmc->pci_pio_base >> 32, pmc->pci_pio_base, |
| 0x0, 0x10000, |
| }; |
| QemuOpts *machine_opts = qemu_get_machine_opts(); |
| const char *dtb_file = qemu_opt_get(machine_opts, "dtb"); |
| const char *toplevel_compat = qemu_opt_get(machine_opts, "dt_compatible"); |
| |
| if (dtb_file) { |
| char *filename; |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_file); |
| if (!filename) { |
| goto out; |
| } |
| |
| fdt = load_device_tree(filename, &fdt_size); |
| g_free(filename); |
| if (!fdt) { |
| goto out; |
| } |
| goto done; |
| } |
| |
| fdt = create_device_tree(&fdt_size); |
| if (fdt == NULL) { |
| goto out; |
| } |
| |
| /* Manipulate device tree in memory. */ |
| qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 2); |
| qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 2); |
| |
| qemu_fdt_add_subnode(fdt, "/memory"); |
| qemu_fdt_setprop_string(fdt, "/memory", "device_type", "memory"); |
| qemu_fdt_setprop(fdt, "/memory", "reg", mem_reg_property, |
| sizeof(mem_reg_property)); |
| |
| qemu_fdt_add_subnode(fdt, "/chosen"); |
| if (initrd_size) { |
| ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start", |
| initrd_base); |
| if (ret < 0) { |
| fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); |
| } |
| |
| ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end", |
| (initrd_base + initrd_size)); |
| if (ret < 0) { |
| fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); |
| } |
| |
| } |
| |
| if (kernel_base != -1ULL) { |
| qemu_fdt_setprop_cells(fdt, "/chosen", "qemu,boot-kernel", |
| kernel_base >> 32, kernel_base, |
| kernel_size >> 32, kernel_size); |
| } |
| |
| ret = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", |
| machine->kernel_cmdline); |
| if (ret < 0) |
| fprintf(stderr, "couldn't set /chosen/bootargs\n"); |
| |
| if (kvm_enabled()) { |
| /* Read out host's frequencies */ |
| clock_freq = kvmppc_get_clockfreq(); |
| tb_freq = kvmppc_get_tbfreq(); |
| |
| /* indicate KVM hypercall interface */ |
| qemu_fdt_add_subnode(fdt, "/hypervisor"); |
| qemu_fdt_setprop_string(fdt, "/hypervisor", "compatible", |
| "linux,kvm"); |
| kvmppc_get_hypercall(env, hypercall, sizeof(hypercall)); |
| qemu_fdt_setprop(fdt, "/hypervisor", "hcall-instructions", |
| hypercall, sizeof(hypercall)); |
| /* if KVM supports the idle hcall, set property indicating this */ |
| if (kvmppc_get_hasidle(env)) { |
| qemu_fdt_setprop(fdt, "/hypervisor", "has-idle", NULL, 0); |
| } |
| } |
| |
| /* Create CPU nodes */ |
| qemu_fdt_add_subnode(fdt, "/cpus"); |
| qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 1); |
| qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0); |
| |
| /* We need to generate the cpu nodes in reverse order, so Linux can pick |
| the first node as boot node and be happy */ |
| for (i = smp_cpus - 1; i >= 0; i--) { |
| CPUState *cpu; |
| char *cpu_name; |
| uint64_t cpu_release_addr = pmc->spin_base + (i * 0x20); |
| |
| cpu = qemu_get_cpu(i); |
| if (cpu == NULL) { |
| continue; |
| } |
| env = cpu->env_ptr; |
| |
| cpu_name = g_strdup_printf("/cpus/PowerPC,8544@%x", i); |
| qemu_fdt_add_subnode(fdt, cpu_name); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "clock-frequency", clock_freq); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "timebase-frequency", tb_freq); |
| qemu_fdt_setprop_string(fdt, cpu_name, "device_type", "cpu"); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "reg", i); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "d-cache-line-size", |
| env->dcache_line_size); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "i-cache-line-size", |
| env->icache_line_size); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "d-cache-size", 0x8000); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "i-cache-size", 0x8000); |
| qemu_fdt_setprop_cell(fdt, cpu_name, "bus-frequency", 0); |
| if (cpu->cpu_index) { |
| qemu_fdt_setprop_string(fdt, cpu_name, "status", "disabled"); |
| qemu_fdt_setprop_string(fdt, cpu_name, "enable-method", |
| "spin-table"); |
| qemu_fdt_setprop_u64(fdt, cpu_name, "cpu-release-addr", |
| cpu_release_addr); |
| } else { |
| qemu_fdt_setprop_string(fdt, cpu_name, "status", "okay"); |
| } |
| g_free(cpu_name); |
| } |
| |
| qemu_fdt_add_subnode(fdt, "/aliases"); |
| /* XXX These should go into their respective devices' code */ |
| soc = g_strdup_printf("/soc@%"PRIx64, pmc->ccsrbar_base); |
| qemu_fdt_add_subnode(fdt, soc); |
| qemu_fdt_setprop_string(fdt, soc, "device_type", "soc"); |
| qemu_fdt_setprop(fdt, soc, "compatible", compatible_sb, |
| sizeof(compatible_sb)); |
| qemu_fdt_setprop_cell(fdt, soc, "#address-cells", 1); |
| qemu_fdt_setprop_cell(fdt, soc, "#size-cells", 1); |
| qemu_fdt_setprop_cells(fdt, soc, "ranges", 0x0, |
| pmc->ccsrbar_base >> 32, pmc->ccsrbar_base, |
| MPC8544_CCSRBAR_SIZE); |
| /* XXX should contain a reasonable value */ |
| qemu_fdt_setprop_cell(fdt, soc, "bus-frequency", 0); |
| |
| mpic = g_strdup_printf("%s/pic@%llx", soc, MPC8544_MPIC_REGS_OFFSET); |
| qemu_fdt_add_subnode(fdt, mpic); |
| qemu_fdt_setprop_string(fdt, mpic, "device_type", "open-pic"); |
| qemu_fdt_setprop_string(fdt, mpic, "compatible", "fsl,mpic"); |
| qemu_fdt_setprop_cells(fdt, mpic, "reg", MPC8544_MPIC_REGS_OFFSET, |
| 0x40000); |
| qemu_fdt_setprop_cell(fdt, mpic, "#address-cells", 0); |
| qemu_fdt_setprop_cell(fdt, mpic, "#interrupt-cells", 2); |
| mpic_ph = qemu_fdt_alloc_phandle(fdt); |
| qemu_fdt_setprop_cell(fdt, mpic, "phandle", mpic_ph); |
| qemu_fdt_setprop_cell(fdt, mpic, "linux,phandle", mpic_ph); |
| qemu_fdt_setprop(fdt, mpic, "interrupt-controller", NULL, 0); |
| |
| /* |
| * We have to generate ser1 first, because Linux takes the first |
| * device it finds in the dt as serial output device. And we generate |
| * devices in reverse order to the dt. |
| */ |
| if (serial_hd(1)) { |
| dt_serial_create(fdt, MPC8544_SERIAL1_REGS_OFFSET, |
| soc, mpic, "serial1", 1, false); |
| } |
| |
| if (serial_hd(0)) { |
| dt_serial_create(fdt, MPC8544_SERIAL0_REGS_OFFSET, |
| soc, mpic, "serial0", 0, true); |
| } |
| |
| gutil = g_strdup_printf("%s/global-utilities@%llx", soc, |
| MPC8544_UTIL_OFFSET); |
| qemu_fdt_add_subnode(fdt, gutil); |
| qemu_fdt_setprop_string(fdt, gutil, "compatible", "fsl,mpc8544-guts"); |
| qemu_fdt_setprop_cells(fdt, gutil, "reg", MPC8544_UTIL_OFFSET, 0x1000); |
| qemu_fdt_setprop(fdt, gutil, "fsl,has-rstcr", NULL, 0); |
| g_free(gutil); |
| |
| msi = g_strdup_printf("/%s/msi@%llx", soc, MPC8544_MSI_REGS_OFFSET); |
| qemu_fdt_add_subnode(fdt, msi); |
| qemu_fdt_setprop_string(fdt, msi, "compatible", "fsl,mpic-msi"); |
| qemu_fdt_setprop_cells(fdt, msi, "reg", MPC8544_MSI_REGS_OFFSET, 0x200); |
| msi_ph = qemu_fdt_alloc_phandle(fdt); |
| qemu_fdt_setprop_cells(fdt, msi, "msi-available-ranges", 0x0, 0x100); |
| qemu_fdt_setprop_phandle(fdt, msi, "interrupt-parent", mpic); |
| qemu_fdt_setprop_cells(fdt, msi, "interrupts", |
| 0xe0, 0x0, |
| 0xe1, 0x0, |
| 0xe2, 0x0, |
| 0xe3, 0x0, |
| 0xe4, 0x0, |
| 0xe5, 0x0, |
| 0xe6, 0x0, |
| 0xe7, 0x0); |
| qemu_fdt_setprop_cell(fdt, msi, "phandle", msi_ph); |
| qemu_fdt_setprop_cell(fdt, msi, "linux,phandle", msi_ph); |
| g_free(msi); |
| |
| pci = g_strdup_printf("/pci@%llx", |
| pmc->ccsrbar_base + MPC8544_PCI_REGS_OFFSET); |
| qemu_fdt_add_subnode(fdt, pci); |
| qemu_fdt_setprop_cell(fdt, pci, "cell-index", 0); |
| qemu_fdt_setprop_string(fdt, pci, "compatible", "fsl,mpc8540-pci"); |
| qemu_fdt_setprop_string(fdt, pci, "device_type", "pci"); |
| qemu_fdt_setprop_cells(fdt, pci, "interrupt-map-mask", 0xf800, 0x0, |
| 0x0, 0x7); |
| pci_map = pci_map_create(fdt, qemu_fdt_get_phandle(fdt, mpic), |
| pmc->pci_first_slot, pmc->pci_nr_slots, |
| &len); |
| qemu_fdt_setprop(fdt, pci, "interrupt-map", pci_map, len); |
| qemu_fdt_setprop_phandle(fdt, pci, "interrupt-parent", mpic); |
| qemu_fdt_setprop_cells(fdt, pci, "interrupts", 24, 2); |
| qemu_fdt_setprop_cells(fdt, pci, "bus-range", 0, 255); |
| for (i = 0; i < 14; i++) { |
| pci_ranges[i] = cpu_to_be32(pci_ranges[i]); |
| } |
| qemu_fdt_setprop_cell(fdt, pci, "fsl,msi", msi_ph); |
| qemu_fdt_setprop(fdt, pci, "ranges", pci_ranges, sizeof(pci_ranges)); |
| qemu_fdt_setprop_cells(fdt, pci, "reg", |
| (pmc->ccsrbar_base + MPC8544_PCI_REGS_OFFSET) >> 32, |
| (pmc->ccsrbar_base + MPC8544_PCI_REGS_OFFSET), |
| 0, 0x1000); |
| qemu_fdt_setprop_cell(fdt, pci, "clock-frequency", 66666666); |
| qemu_fdt_setprop_cell(fdt, pci, "#interrupt-cells", 1); |
| qemu_fdt_setprop_cell(fdt, pci, "#size-cells", 2); |
| qemu_fdt_setprop_cell(fdt, pci, "#address-cells", 3); |
| qemu_fdt_setprop_string(fdt, "/aliases", "pci0", pci); |
| g_free(pci); |
| |
| if (pmc->has_mpc8xxx_gpio) { |
| create_dt_mpc8xxx_gpio(fdt, soc, mpic); |
| } |
| g_free(soc); |
| |
| if (pms->pbus_dev) { |
| platform_bus_create_devtree(pms, fdt, mpic); |
| } |
| g_free(mpic); |
| |
| pmc->fixup_devtree(fdt); |
| |
| if (toplevel_compat) { |
| qemu_fdt_setprop(fdt, "/", "compatible", toplevel_compat, |
| strlen(toplevel_compat) + 1); |
| } |
| |
| done: |
| if (!dry_run) { |
| qemu_fdt_dumpdtb(fdt, fdt_size); |
| cpu_physical_memory_write(addr, fdt, fdt_size); |
| } |
| ret = fdt_size; |
| |
| out: |
| g_free(pci_map); |
| |
| return ret; |
| } |
| |
| typedef struct DeviceTreeParams { |
| PPCE500MachineState *machine; |
| hwaddr addr; |
| hwaddr initrd_base; |
| hwaddr initrd_size; |
| hwaddr kernel_base; |
| hwaddr kernel_size; |
| Notifier notifier; |
| } DeviceTreeParams; |
| |
| static void ppce500_reset_device_tree(void *opaque) |
| { |
| DeviceTreeParams *p = opaque; |
| ppce500_load_device_tree(p->machine, p->addr, p->initrd_base, |
| p->initrd_size, p->kernel_base, p->kernel_size, |
| false); |
| } |
| |
| static void ppce500_init_notify(Notifier *notifier, void *data) |
| { |
| DeviceTreeParams *p = container_of(notifier, DeviceTreeParams, notifier); |
| ppce500_reset_device_tree(p); |
| } |
| |
| static int ppce500_prep_device_tree(PPCE500MachineState *machine, |
| hwaddr addr, |
| hwaddr initrd_base, |
| hwaddr initrd_size, |
| hwaddr kernel_base, |
| hwaddr kernel_size) |
| { |
| DeviceTreeParams *p = g_new(DeviceTreeParams, 1); |
| p->machine = machine; |
| p->addr = addr; |
| p->initrd_base = initrd_base; |
| p->initrd_size = initrd_size; |
| p->kernel_base = kernel_base; |
| p->kernel_size = kernel_size; |
| |
| qemu_register_reset(ppce500_reset_device_tree, p); |
| p->notifier.notify = ppce500_init_notify; |
| qemu_add_machine_init_done_notifier(&p->notifier); |
| |
| /* Issue the device tree loader once, so that we get the size of the blob */ |
| return ppce500_load_device_tree(machine, addr, initrd_base, initrd_size, |
| kernel_base, kernel_size, true); |
| } |
| |
| /* Create -kernel TLB entries for BookE. */ |
| hwaddr booke206_page_size_to_tlb(uint64_t size) |
| { |
| return 63 - clz64(size / KiB); |
| } |
| |
| static int booke206_initial_map_tsize(CPUPPCState *env) |
| { |
| struct boot_info *bi = env->load_info; |
| hwaddr dt_end; |
| int ps; |
| |
| /* Our initial TLB entry needs to cover everything from 0 to |
| the device tree top */ |
| dt_end = bi->dt_base + bi->dt_size; |
| ps = booke206_page_size_to_tlb(dt_end) + 1; |
| if (ps & 1) { |
| /* e500v2 can only do even TLB size bits */ |
| ps++; |
| } |
| return ps; |
| } |
| |
| static uint64_t mmubooke_initial_mapsize(CPUPPCState *env) |
| { |
| int tsize; |
| |
| tsize = booke206_initial_map_tsize(env); |
| return (1ULL << 10 << tsize); |
| } |
| |
| static void mmubooke_create_initial_mapping(CPUPPCState *env) |
| { |
| ppcmas_tlb_t *tlb = booke206_get_tlbm(env, 1, 0, 0); |
| hwaddr size; |
| int ps; |
| |
| ps = booke206_initial_map_tsize(env); |
| size = (ps << MAS1_TSIZE_SHIFT); |
| tlb->mas1 = MAS1_VALID | size; |
| tlb->mas2 = 0; |
| tlb->mas7_3 = 0; |
| tlb->mas7_3 |= MAS3_UR | MAS3_UW | MAS3_UX | MAS3_SR | MAS3_SW | MAS3_SX; |
| |
| env->tlb_dirty = true; |
| } |
| |
| static void ppce500_cpu_reset_sec(void *opaque) |
| { |
| PowerPCCPU *cpu = opaque; |
| CPUState *cs = CPU(cpu); |
| |
| cpu_reset(cs); |
| |
| /* Secondary CPU starts in halted state for now. Needs to change when |
| implementing non-kernel boot. */ |
| cs->halted = 1; |
| cs->exception_index = EXCP_HLT; |
| } |
| |
| static void ppce500_cpu_reset(void *opaque) |
| { |
| PowerPCCPU *cpu = opaque; |
| CPUState *cs = CPU(cpu); |
| CPUPPCState *env = &cpu->env; |
| struct boot_info *bi = env->load_info; |
| |
| cpu_reset(cs); |
| |
| /* Set initial guest state. */ |
| cs->halted = 0; |
| env->gpr[1] = (16 * MiB) - 8; |
| env->gpr[3] = bi->dt_base; |
| env->gpr[4] = 0; |
| env->gpr[5] = 0; |
| env->gpr[6] = EPAPR_MAGIC; |
| env->gpr[7] = mmubooke_initial_mapsize(env); |
| env->gpr[8] = 0; |
| env->gpr[9] = 0; |
| env->nip = bi->entry; |
| mmubooke_create_initial_mapping(env); |
| } |
| |
| static DeviceState *ppce500_init_mpic_qemu(PPCE500MachineState *pms, |
| IrqLines *irqs) |
| { |
| DeviceState *dev; |
| SysBusDevice *s; |
| int i, j, k; |
| MachineState *machine = MACHINE(pms); |
| const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms); |
| |
| dev = qdev_create(NULL, TYPE_OPENPIC); |
| object_property_add_child(OBJECT(machine), "pic", OBJECT(dev), |
| &error_fatal); |
| qdev_prop_set_uint32(dev, "model", pmc->mpic_version); |
| qdev_prop_set_uint32(dev, "nb_cpus", smp_cpus); |
| |
| qdev_init_nofail(dev); |
| s = SYS_BUS_DEVICE(dev); |
| |
| k = 0; |
| for (i = 0; i < smp_cpus; i++) { |
| for (j = 0; j < OPENPIC_OUTPUT_NB; j++) { |
| sysbus_connect_irq(s, k++, irqs[i].irq[j]); |
| } |
| } |
| |
| return dev; |
| } |
| |
| static DeviceState *ppce500_init_mpic_kvm(const PPCE500MachineClass *pmc, |
| IrqLines *irqs, Error **errp) |
| { |
| Error *err = NULL; |
| DeviceState *dev; |
| CPUState *cs; |
| |
| dev = qdev_create(NULL, TYPE_KVM_OPENPIC); |
| qdev_prop_set_uint32(dev, "model", pmc->mpic_version); |
| |
| object_property_set_bool(OBJECT(dev), true, "realized", &err); |
| if (err) { |
| error_propagate(errp, err); |
| object_unparent(OBJECT(dev)); |
| return NULL; |
| } |
| |
| CPU_FOREACH(cs) { |
| if (kvm_openpic_connect_vcpu(dev, cs)) { |
| fprintf(stderr, "%s: failed to connect vcpu to irqchip\n", |
| __func__); |
| abort(); |
| } |
| } |
| |
| return dev; |
| } |
| |
| static DeviceState *ppce500_init_mpic(PPCE500MachineState *pms, |
| MemoryRegion *ccsr, |
| IrqLines *irqs) |
| { |
| MachineState *machine = MACHINE(pms); |
| const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms); |
| DeviceState *dev = NULL; |
| SysBusDevice *s; |
| |
| if (kvm_enabled()) { |
| Error *err = NULL; |
| |
| if (machine_kernel_irqchip_allowed(machine)) { |
| dev = ppce500_init_mpic_kvm(pmc, irqs, &err); |
| } |
| if (machine_kernel_irqchip_required(machine) && !dev) { |
| error_reportf_err(err, |
| "kernel_irqchip requested but unavailable: "); |
| exit(1); |
| } |
| } |
| |
| if (!dev) { |
| dev = ppce500_init_mpic_qemu(pms, irqs); |
| } |
| |
| s = SYS_BUS_DEVICE(dev); |
| memory_region_add_subregion(ccsr, MPC8544_MPIC_REGS_OFFSET, |
| s->mmio[0].memory); |
| |
| return dev; |
| } |
| |
| static void ppce500_power_off(void *opaque, int line, int on) |
| { |
| if (on) { |
| qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); |
| } |
| } |
| |
| void ppce500_init(MachineState *machine) |
| { |
| MemoryRegion *address_space_mem = get_system_memory(); |
| MemoryRegion *ram = g_new(MemoryRegion, 1); |
| PPCE500MachineState *pms = PPCE500_MACHINE(machine); |
| const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(machine); |
| PCIBus *pci_bus; |
| CPUPPCState *env = NULL; |
| uint64_t loadaddr; |
| hwaddr kernel_base = -1LL; |
| int kernel_size = 0; |
| hwaddr dt_base = 0; |
| hwaddr initrd_base = 0; |
| int initrd_size = 0; |
| hwaddr cur_base = 0; |
| char *filename; |
| const char *payload_name; |
| bool kernel_as_payload; |
| hwaddr bios_entry = 0; |
| target_long payload_size; |
| struct boot_info *boot_info; |
| int dt_size; |
| int i; |
| /* irq num for pin INTA, INTB, INTC and INTD is 1, 2, 3 and |
| * 4 respectively */ |
| unsigned int pci_irq_nrs[PCI_NUM_PINS] = {1, 2, 3, 4}; |
| IrqLines *irqs; |
| DeviceState *dev, *mpicdev; |
| CPUPPCState *firstenv = NULL; |
| MemoryRegion *ccsr_addr_space; |
| SysBusDevice *s; |
| PPCE500CCSRState *ccsr; |
| |
| irqs = g_new0(IrqLines, smp_cpus); |
| for (i = 0; i < smp_cpus; i++) { |
| PowerPCCPU *cpu; |
| CPUState *cs; |
| qemu_irq *input; |
| |
| cpu = POWERPC_CPU(cpu_create(machine->cpu_type)); |
| env = &cpu->env; |
| cs = CPU(cpu); |
| |
| if (env->mmu_model != POWERPC_MMU_BOOKE206) { |
| error_report("MMU model %i not supported by this machine", |
| env->mmu_model); |
| exit(1); |
| } |
| |
| if (!firstenv) { |
| firstenv = env; |
| } |
| |
| input = (qemu_irq *)env->irq_inputs; |
| irqs[i].irq[OPENPIC_OUTPUT_INT] = input[PPCE500_INPUT_INT]; |
| irqs[i].irq[OPENPIC_OUTPUT_CINT] = input[PPCE500_INPUT_CINT]; |
| env->spr_cb[SPR_BOOKE_PIR].default_value = cs->cpu_index = i; |
| env->mpic_iack = pmc->ccsrbar_base + MPC8544_MPIC_REGS_OFFSET + 0xa0; |
| |
| ppc_booke_timers_init(cpu, 400000000, PPC_TIMER_E500); |
| |
| /* Register reset handler */ |
| if (!i) { |
| /* Primary CPU */ |
| struct boot_info *boot_info; |
| boot_info = g_malloc0(sizeof(struct boot_info)); |
| qemu_register_reset(ppce500_cpu_reset, cpu); |
| env->load_info = boot_info; |
| } else { |
| /* Secondary CPUs */ |
| qemu_register_reset(ppce500_cpu_reset_sec, cpu); |
| } |
| } |
| |
| env = firstenv; |
| |
| /* Fixup Memory size on a alignment boundary */ |
| ram_size &= ~(RAM_SIZES_ALIGN - 1); |
| machine->ram_size = ram_size; |
| |
| /* Register Memory */ |
| memory_region_allocate_system_memory(ram, NULL, "mpc8544ds.ram", ram_size); |
| memory_region_add_subregion(address_space_mem, 0, ram); |
| |
| dev = qdev_create(NULL, "e500-ccsr"); |
| object_property_add_child(qdev_get_machine(), "e500-ccsr", |
| OBJECT(dev), NULL); |
| qdev_init_nofail(dev); |
| ccsr = CCSR(dev); |
| ccsr_addr_space = &ccsr->ccsr_space; |
| memory_region_add_subregion(address_space_mem, pmc->ccsrbar_base, |
| ccsr_addr_space); |
| |
| mpicdev = ppce500_init_mpic(pms, ccsr_addr_space, irqs); |
| |
| /* Serial */ |
| if (serial_hd(0)) { |
| serial_mm_init(ccsr_addr_space, MPC8544_SERIAL0_REGS_OFFSET, |
| 0, qdev_get_gpio_in(mpicdev, 42), 399193, |
| serial_hd(0), DEVICE_BIG_ENDIAN); |
| } |
| |
| if (serial_hd(1)) { |
| serial_mm_init(ccsr_addr_space, MPC8544_SERIAL1_REGS_OFFSET, |
| 0, qdev_get_gpio_in(mpicdev, 42), 399193, |
| serial_hd(1), DEVICE_BIG_ENDIAN); |
| } |
| |
| /* General Utility device */ |
| dev = qdev_create(NULL, "mpc8544-guts"); |
| qdev_init_nofail(dev); |
| s = SYS_BUS_DEVICE(dev); |
| memory_region_add_subregion(ccsr_addr_space, MPC8544_UTIL_OFFSET, |
| sysbus_mmio_get_region(s, 0)); |
| |
| /* PCI */ |
| dev = qdev_create(NULL, "e500-pcihost"); |
| object_property_add_child(qdev_get_machine(), "pci-host", OBJECT(dev), |
| &error_abort); |
| qdev_prop_set_uint32(dev, "first_slot", pmc->pci_first_slot); |
| qdev_prop_set_uint32(dev, "first_pin_irq", pci_irq_nrs[0]); |
| qdev_init_nofail(dev); |
| s = SYS_BUS_DEVICE(dev); |
| for (i = 0; i < PCI_NUM_PINS; i++) { |
| sysbus_connect_irq(s, i, qdev_get_gpio_in(mpicdev, pci_irq_nrs[i])); |
| } |
| |
| memory_region_add_subregion(ccsr_addr_space, MPC8544_PCI_REGS_OFFSET, |
| sysbus_mmio_get_region(s, 0)); |
| |
| pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0"); |
| if (!pci_bus) |
| printf("couldn't create PCI controller!\n"); |
| |
| if (pci_bus) { |
| /* Register network interfaces. */ |
| for (i = 0; i < nb_nics; i++) { |
| pci_nic_init_nofail(&nd_table[i], pci_bus, "virtio-net-pci", NULL); |
| } |
| } |
| |
| /* Register spinning region */ |
| sysbus_create_simple("e500-spin", pmc->spin_base, NULL); |
| |
| if (pmc->has_mpc8xxx_gpio) { |
| qemu_irq poweroff_irq; |
| |
| dev = qdev_create(NULL, "mpc8xxx_gpio"); |
| s = SYS_BUS_DEVICE(dev); |
| qdev_init_nofail(dev); |
| sysbus_connect_irq(s, 0, qdev_get_gpio_in(mpicdev, MPC8XXX_GPIO_IRQ)); |
| memory_region_add_subregion(ccsr_addr_space, MPC8XXX_GPIO_OFFSET, |
| sysbus_mmio_get_region(s, 0)); |
| |
| /* Power Off GPIO at Pin 0 */ |
| poweroff_irq = qemu_allocate_irq(ppce500_power_off, NULL, 0); |
| qdev_connect_gpio_out(dev, 0, poweroff_irq); |
| } |
| |
| /* Platform Bus Device */ |
| if (pmc->has_platform_bus) { |
| dev = qdev_create(NULL, TYPE_PLATFORM_BUS_DEVICE); |
| dev->id = TYPE_PLATFORM_BUS_DEVICE; |
| qdev_prop_set_uint32(dev, "num_irqs", pmc->platform_bus_num_irqs); |
| qdev_prop_set_uint32(dev, "mmio_size", pmc->platform_bus_size); |
| qdev_init_nofail(dev); |
| pms->pbus_dev = PLATFORM_BUS_DEVICE(dev); |
| |
| s = SYS_BUS_DEVICE(pms->pbus_dev); |
| for (i = 0; i < pmc->platform_bus_num_irqs; i++) { |
| int irqn = pmc->platform_bus_first_irq + i; |
| sysbus_connect_irq(s, i, qdev_get_gpio_in(mpicdev, irqn)); |
| } |
| |
| memory_region_add_subregion(address_space_mem, |
| pmc->platform_bus_base, |
| sysbus_mmio_get_region(s, 0)); |
| } |
| |
| /* |
| * Smart firmware defaults ahead! |
| * |
| * We follow the following table to select which payload we execute. |
| * |
| * -kernel | -bios | payload |
| * ---------+-------+--------- |
| * N | Y | u-boot |
| * N | N | u-boot |
| * Y | Y | u-boot |
| * Y | N | kernel |
| * |
| * This ensures backwards compatibility with how we used to expose |
| * -kernel to users but allows them to run through u-boot as well. |
| */ |
| kernel_as_payload = false; |
| if (bios_name == NULL) { |
| if (machine->kernel_filename) { |
| payload_name = machine->kernel_filename; |
| kernel_as_payload = true; |
| } else { |
| payload_name = "u-boot.e500"; |
| } |
| } else { |
| payload_name = bios_name; |
| } |
| |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, payload_name); |
| |
| payload_size = load_elf(filename, NULL, NULL, NULL, |
| &bios_entry, &loadaddr, NULL, |
| 1, PPC_ELF_MACHINE, 0, 0); |
| if (payload_size < 0) { |
| /* |
| * Hrm. No ELF image? Try a uImage, maybe someone is giving us an |
| * ePAPR compliant kernel |
| */ |
| loadaddr = LOAD_UIMAGE_LOADADDR_INVALID; |
| payload_size = load_uimage(filename, &bios_entry, &loadaddr, NULL, |
| NULL, NULL); |
| if (payload_size < 0) { |
| error_report("could not load firmware '%s'", filename); |
| exit(1); |
| } |
| } |
| |
| g_free(filename); |
| |
| if (kernel_as_payload) { |
| kernel_base = loadaddr; |
| kernel_size = payload_size; |
| } |
| |
| cur_base = loadaddr + payload_size; |
| if (cur_base < 32 * MiB) { |
| /* u-boot occupies memory up to 32MB, so load blobs above */ |
| cur_base = 32 * MiB; |
| } |
| |
| /* Load bare kernel only if no bios/u-boot has been provided */ |
| if (machine->kernel_filename && !kernel_as_payload) { |
| kernel_base = cur_base; |
| kernel_size = load_image_targphys(machine->kernel_filename, |
| cur_base, |
| ram_size - cur_base); |
| if (kernel_size < 0) { |
| error_report("could not load kernel '%s'", |
| machine->kernel_filename); |
| exit(1); |
| } |
| |
| cur_base += kernel_size; |
| } |
| |
| /* Load initrd. */ |
| if (machine->initrd_filename) { |
| initrd_base = (cur_base + INITRD_LOAD_PAD) & ~INITRD_PAD_MASK; |
| initrd_size = load_image_targphys(machine->initrd_filename, initrd_base, |
| ram_size - initrd_base); |
| |
| if (initrd_size < 0) { |
| error_report("could not load initial ram disk '%s'", |
| machine->initrd_filename); |
| exit(1); |
| } |
| |
| cur_base = initrd_base + initrd_size; |
| } |
| |
| /* |
| * Reserve space for dtb behind the kernel image because Linux has a bug |
| * where it can only handle the dtb if it's within the first 64MB of where |
| * <kernel> starts. dtb cannot not reach initrd_base because INITRD_LOAD_PAD |
| * ensures enough space between kernel and initrd. |
| */ |
| dt_base = (loadaddr + payload_size + DTC_LOAD_PAD) & ~DTC_PAD_MASK; |
| if (dt_base + DTB_MAX_SIZE > ram_size) { |
| error_report("not enough memory for device tree"); |
| exit(1); |
| } |
| |
| dt_size = ppce500_prep_device_tree(pms, dt_base, |
| initrd_base, initrd_size, |
| kernel_base, kernel_size); |
| if (dt_size < 0) { |
| error_report("couldn't load device tree"); |
| exit(1); |
| } |
| assert(dt_size < DTB_MAX_SIZE); |
| |
| boot_info = env->load_info; |
| boot_info->entry = bios_entry; |
| boot_info->dt_base = dt_base; |
| boot_info->dt_size = dt_size; |
| } |
| |
| static void e500_ccsr_initfn(Object *obj) |
| { |
| PPCE500CCSRState *ccsr = CCSR(obj); |
| memory_region_init(&ccsr->ccsr_space, obj, "e500-ccsr", |
| MPC8544_CCSRBAR_SIZE); |
| } |
| |
| static const TypeInfo e500_ccsr_info = { |
| .name = TYPE_CCSR, |
| .parent = TYPE_SYS_BUS_DEVICE, |
| .instance_size = sizeof(PPCE500CCSRState), |
| .instance_init = e500_ccsr_initfn, |
| }; |
| |
| static const TypeInfo ppce500_info = { |
| .name = TYPE_PPCE500_MACHINE, |
| .parent = TYPE_MACHINE, |
| .abstract = true, |
| .instance_size = sizeof(PPCE500MachineState), |
| .class_size = sizeof(PPCE500MachineClass), |
| }; |
| |
| static void e500_register_types(void) |
| { |
| type_register_static(&e500_ccsr_info); |
| type_register_static(&ppce500_info); |
| } |
| |
| type_init(e500_register_types) |
