hw/ppc440.c

   1 /*
   2  * Qemu PowerPC 440 chip emulation
   3  *
   4  * Copyright 2007 IBM Corporation.
   5  * Authors:
   6  *      Jerone Young <jyoung5@us.ibm.com>
   7  *      Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
   8  *      Hollis Blanchard <hollisb@us.ibm.com>
   9  *
  10  * This work is licensed under the GNU GPL license version 2 or later.
  11  *
  12  */
  13
  14 #include "hw.h"
  15 #include "isa.h"
  16 #include "ppc.h"
  17 #include "ppc4xx.h"
  18 #include "ppc440.h"
  19 #include "ppc405.h"
  20 #include "sysemu.h"
  21 #include "kvm.h"
  22 #include "qemu-kvm.h"
  23
  24 #define PPC440EP_PCI_CONFIG     0xeec00000
  25 #define PPC440EP_PCI_INTACK     0xeed00000
  26 #define PPC440EP_PCI_SPECIAL    0xeed00000
  27 #define PPC440EP_PCI_REGS       0xef400000
  28 #define PPC440EP_PCI_IO         0xe8000000
  29 #define PPC440EP_PCI_IOLEN      0x00010000
  30
  31 #define PPC440EP_SDRAM_NR_BANKS 4
  32
  33 static const unsigned int ppc440ep_sdram_bank_sizes[] = {
  34     256<<20, 128<<20, 64<<20, 32<<20, 16<<20, 8<<20, 0
  35 };
  36
  37 CPUState *ppc440ep_init(ram_addr_t *ram_size, PCIBus **pcip,
  38                         const unsigned int pci_irq_nrs[4], int do_init,
  39                         const char *cpu_model)
  40 {
  41     target_phys_addr_t ram_bases[PPC440EP_SDRAM_NR_BANKS];
  42     target_phys_addr_t ram_sizes[PPC440EP_SDRAM_NR_BANKS];
  43     CPUState *env;
  44     ppc4xx_mmio_t *mmio;
  45     qemu_irq *pic;
  46     qemu_irq *irqs;
  47     qemu_irq *pci_irqs;
  48
  49     if (cpu_model == NULL)
  50         cpu_model = "405"; // XXX: should be 440EP
  51     env = cpu_init(cpu_model);
  52     if (!env) {
  53         fprintf(stderr, "Unable to initialize CPU!\n");
  54         exit(1);
  55     }
  56
  57     ppc_dcr_init(env, NULL, NULL);
  58
  59     /* interrupt controller */
  60     irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
  61     irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
  62     irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
  63     pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
  64
  65     /* SDRAM controller */
  66     memset(ram_bases, 0, sizeof(ram_bases));
  67     memset(ram_sizes, 0, sizeof(ram_sizes));
  68     *ram_size = ppc4xx_sdram_adjust(*ram_size, PPC440EP_SDRAM_NR_BANKS,
  69                                     ram_bases, ram_sizes,
  70                                     ppc440ep_sdram_bank_sizes);
  71     /* XXX 440EP's ECC interrupts are on UIC1, but we've only created UIC0. */
  72     ppc4xx_sdram_init(env, pic[14], PPC440EP_SDRAM_NR_BANKS, ram_bases,
  73                       ram_sizes, do_init);
  74
  75     /* PCI */
  76     pci_irqs = qemu_malloc(sizeof(qemu_irq) * 4);
  77     pci_irqs[0] = pic[pci_irq_nrs[0]];
  78     pci_irqs[1] = pic[pci_irq_nrs[1]];
  79     pci_irqs[2] = pic[pci_irq_nrs[2]];
  80     pci_irqs[3] = pic[pci_irq_nrs[3]];
  81     *pcip = ppc4xx_pci_init(env, pci_irqs,
  82                             PPC440EP_PCI_CONFIG,
  83                             PPC440EP_PCI_INTACK,
  84                             PPC440EP_PCI_SPECIAL,
  85                             PPC440EP_PCI_REGS);
  86     if (!*pcip)
  87         printf("couldn't create PCI controller!\n");
  88
  89     isa_mmio_init(PPC440EP_PCI_IO, PPC440EP_PCI_IOLEN);
  90
  91     /* MMIO -- most "miscellaneous" devices live above 0xef600000. */
  92     mmio = ppc4xx_mmio_init(env, 0xef600000);
  93
  94     if (serial_hds[0])
  95         ppc405_serial_init(env, mmio, 0x300, pic[0], serial_hds[0]);
  96
  97     if (serial_hds[1])
  98         ppc405_serial_init(env, mmio, 0x400, pic[1], serial_hds[1]);
  99
 100     return env;
 101 }