diff options
Diffstat (limited to 'hw/ppce500_mpc8544ds.c')
| -rw-r--r-- | hw/ppce500_mpc8544ds.c | 113 |
1 files changed, 87 insertions, 26 deletions
diff --git a/hw/ppce500_mpc8544ds.c b/hw/ppce500_mpc8544ds.c index e111dda5f4..17b0165533 100644 --- a/hw/ppce500_mpc8544ds.c +++ b/hw/ppce500_mpc8544ds.c @@ -28,9 +28,10 @@ #include "kvm_ppc.h" #include "device_tree.h" #include "openpic.h" -#include "ppce500.h" +#include "ppc.h" #include "loader.h" #include "elf.h" +#include "sysbus.h" #define BINARY_DEVICE_TREE_FILE "mpc8544ds.dtb" #define UIMAGE_LOAD_BASE 0 @@ -50,6 +51,12 @@ #define MPC8544_PCI_IO 0xE1000000 #define MPC8544_PCI_IOLEN 0x10000 +struct boot_info +{ + uint32_t dt_base; + uint32_t entry; +}; + #ifdef CONFIG_FDT static int mpc8544_copy_soc_cell(void *fdt, const char *node, const char *prop) { @@ -82,7 +89,7 @@ static int mpc8544_load_device_tree(target_phys_addr_t addr, { int ret = -1; #ifdef CONFIG_FDT - uint32_t mem_reg_property[] = {0, ramsize}; + uint32_t mem_reg_property[] = {0, cpu_to_be32(ramsize)}; char *filename; int fdt_size; void *fdt; @@ -103,15 +110,19 @@ static int mpc8544_load_device_tree(target_phys_addr_t addr, if (ret < 0) fprintf(stderr, "couldn't set /memory/reg\n"); - ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", - initrd_base); - if (ret < 0) - fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); + if (initrd_size) { + ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", + initrd_base); + if (ret < 0) { + fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); + } - ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", - (initrd_base + initrd_size)); - if (ret < 0) - fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); + ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", + (initrd_base + initrd_size)); + if (ret < 0) { + fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); + } + } ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline); @@ -145,6 +156,13 @@ static int mpc8544_load_device_tree(target_phys_addr_t addr, mpc8544_copy_soc_cell(fdt, buf, "clock-frequency"); mpc8544_copy_soc_cell(fdt, buf, "timebase-frequency"); + } else { + const uint32_t freq = 400000000; + + qemu_devtree_setprop_cell(fdt, "/cpus/PowerPC,8544@0", + "clock-frequency", freq); + qemu_devtree_setprop_cell(fdt, "/cpus/PowerPC,8544@0", + "timebase-frequency", freq); } ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr); @@ -156,6 +174,35 @@ out: return ret; } +/* Create -kernel TLB entries for BookE, linearly spanning 256MB. */ +static void mmubooke_create_initial_mapping(CPUState *env, + target_ulong va, + target_phys_addr_t pa) +{ + ppcemb_tlb_t *tlb = booke206_get_tlbe(env, 1, 0, 0); + + tlb->attr = 0; + tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4); + tlb->size = 256 * 1024 * 1024; + tlb->EPN = va & TARGET_PAGE_MASK; + tlb->RPN = pa & TARGET_PAGE_MASK; + tlb->PID = 0; +} + +static void mpc8544ds_cpu_reset(void *opaque) +{ + CPUState *env = opaque; + struct boot_info *bi = env->load_info; + + cpu_reset(env); + + /* Set initial guest state. */ + env->gpr[1] = (16<<20) - 8; + env->gpr[3] = bi->dt_base; + env->nip = bi->entry; + mmubooke_create_initial_mapping(env, 0, 0); +} + static void mpc8544ds_init(ram_addr_t ram_size, const char *boot_device, const char *kernel_filename, @@ -175,15 +222,28 @@ static void mpc8544ds_init(ram_addr_t ram_size, target_long initrd_size=0; int i=0; unsigned int pci_irq_nrs[4] = {1, 2, 3, 4}; - qemu_irq *irqs, *mpic, *pci_irqs; + qemu_irq *irqs, *mpic; + DeviceState *dev; + struct boot_info *boot_info; /* Setup CPU */ - env = cpu_ppc_init("e500v2_v30"); + if (cpu_model == NULL) { + cpu_model = "e500v2_v30"; + } + + env = cpu_ppc_init(cpu_model); if (!env) { fprintf(stderr, "Unable to initialize CPU!\n"); exit(1); } + /* XXX register timer? */ + ppc_emb_timers_init(env, 400000000, PPC_INTERRUPT_DECR); + ppc_dcr_init(env, NULL, NULL); + + /* Register reset handler */ + qemu_register_reset(mpc8544ds_cpu_reset, env); + /* Fixup Memory size on a alignment boundary */ ram_size &= ~(RAM_SIZES_ALIGN - 1); @@ -211,12 +271,11 @@ static void mpc8544ds_init(ram_addr_t ram_size, } /* PCI */ - pci_irqs = qemu_malloc(sizeof(qemu_irq) * 4); - pci_irqs[0] = mpic[pci_irq_nrs[0]]; - pci_irqs[1] = mpic[pci_irq_nrs[1]]; - pci_irqs[2] = mpic[pci_irq_nrs[2]]; - pci_irqs[3] = mpic[pci_irq_nrs[3]]; - pci_bus = ppce500_pci_init(pci_irqs, MPC8544_PCI_REGS_BASE); + dev = sysbus_create_varargs("e500-pcihost", MPC8544_PCI_REGS_BASE, + mpic[pci_irq_nrs[0]], mpic[pci_irq_nrs[1]], + mpic[pci_irq_nrs[2]], mpic[pci_irq_nrs[3]], + NULL); + pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci"); if (!pci_bus) printf("couldn't create PCI controller!\n"); @@ -259,8 +318,13 @@ static void mpc8544ds_init(ram_addr_t ram_size, } } + boot_info = qemu_mallocz(sizeof(struct boot_info)); + /* If we're loading a kernel directly, we must load the device tree too. */ if (kernel_filename) { +#ifndef CONFIG_FDT + cpu_abort(env, "Compiled without FDT support - can't load kernel\n"); +#endif dt_base = (kernel_size + DTC_LOAD_PAD) & ~DTC_PAD_MASK; if (mpc8544_load_device_tree(dt_base, ram_size, initrd_base, initrd_size, kernel_cmdline) < 0) { @@ -268,17 +332,14 @@ static void mpc8544ds_init(ram_addr_t ram_size, exit(1); } - /* Set initial guest state. */ - env->gpr[1] = (16<<20) - 8; - env->gpr[3] = dt_base; - env->nip = entry; - /* XXX we currently depend on KVM to create some initial TLB entries. */ + boot_info->entry = entry; + boot_info->dt_base = dt_base; } + env->load_info = boot_info; - if (kvm_enabled()) + if (kvm_enabled()) { kvmppc_init(); - - return; + } } static QEMUMachine mpc8544ds_machine = { |