hw/realview.c

   1 /*
   2  * ARM RealView Baseboard System emulation.
   3  *
   4  * Copyright (c) 2006-2007 CodeSourcery.
   5  * Written by Paul Brook
   6  *
   7  * This code is licenced under the GPL.
   8  */
   9
  10 #include "hw.h"
  11 #include "arm-misc.h"
  12 #include "primecell.h"
  13 #include "devices.h"
  14 #include "pci.h"
  15 #include "net.h"
  16 #include "sysemu.h"
  17 #include "boards.h"
  18
  19 /* Board init.  */
  20
  21 static struct arm_boot_info realview_binfo = {
  22     .loader_start = 0x0,
  23     .board_id = 0x33b,
  24 };
  25
  26 static void realview_init(ram_addr_t ram_size, int vga_ram_size,
  27                      const char *boot_device, DisplayState *ds,
  28                      const char *kernel_filename, const char *kernel_cmdline,
  29                      const char *initrd_filename, const char *cpu_model)
  30 {
  31     CPUState *env;
  32     qemu_irq *pic;
  33     void *scsi_hba;
  34     PCIBus *pci_bus;
  35     NICInfo *nd;
  36     int n;
  37     int done_smc = 0;
  38     qemu_irq cpu_irq[4];
  39     int ncpu;
  40     int index;
  41
  42     if (!cpu_model)
  43         cpu_model = "arm926";
  44     /* FIXME: obey smp_cpus.  */
  45     if (strcmp(cpu_model, "arm11mpcore") == 0) {
  46         ncpu = 4;
  47     } else {
  48         ncpu = 1;
  49     }
  50
  51     for (n = 0; n < ncpu; n++) {
  52         env = cpu_init(cpu_model);
  53         if (!env) {
  54             fprintf(stderr, "Unable to find CPU definition\n");
  55             exit(1);
  56         }
  57         pic = arm_pic_init_cpu(env);
  58         cpu_irq[n] = pic[ARM_PIC_CPU_IRQ];
  59         if (n > 0) {
  60             /* Set entry point for secondary CPUs.  This assumes we're using
  61                the init code from arm_boot.c.  Real hardware resets all CPUs
  62                the same.  */
  63             env->regs[15] = 0x80000000;
  64         }
  65     }
  66
  67     /* ??? RAM should repeat to fill physical memory space.  */
  68     /* SDRAM at address zero.  */
  69     cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
  70
  71     arm_sysctl_init(0x10000000, 0xc1400400);
  72
  73     if (ncpu == 1) {
  74         /* ??? The documentation says GIC1 is nFIQ and either GIC2 or GIC3
  75            is nIRQ (there are inconsistencies).  However Linux 2.6.17 expects
  76            GIC1 to be nIRQ and ignores all the others, so do that for now.  */
  77         pic = realview_gic_init(0x10040000, cpu_irq[0]);
  78     } else {
  79         pic = mpcore_irq_init(cpu_irq);
  80     }
  81
  82     pl050_init(0x10006000, pic[20], 0);
  83     pl050_init(0x10007000, pic[21], 1);
  84
  85     pl011_init(0x10009000, pic[12], serial_hds[0], PL011_ARM);
  86     pl011_init(0x1000a000, pic[13], serial_hds[1], PL011_ARM);
  87     pl011_init(0x1000b000, pic[14], serial_hds[2], PL011_ARM);
  88     pl011_init(0x1000c000, pic[15], serial_hds[3], PL011_ARM);
  89
  90     /* DMA controller is optional, apparently.  */
  91     pl080_init(0x10030000, pic[24], 2);
  92
  93     sp804_init(0x10011000, pic[4]);
  94     sp804_init(0x10012000, pic[5]);
  95
  96     pl110_init(ds, 0x10020000, pic[23], 1);
  97
  98     index = drive_get_index(IF_SD, 0, 0);
  99     if (index == -1) {
 100         fprintf(stderr, "qemu: missing SecureDigital card\n");
 101         exit(1);
 102     }
 103     pl181_init(0x10005000, drives_table[index].bdrv, pic[17], pic[18]);
 104
 105     pl031_init(0x10017000, pic[10]);
 106
 107     pci_bus = pci_vpb_init(pic, 48, 1);
 108     if (usb_enabled) {
 109         usb_ohci_init_pci(pci_bus, 3, -1);
 110     }
 111     if (drive_get_max_bus(IF_SCSI) > 0) {
 112         fprintf(stderr, "qemu: too many SCSI bus\n");
 113         exit(1);
 114     }
 115     scsi_hba = lsi_scsi_init(pci_bus, -1);
 116     for (n = 0; n < LSI_MAX_DEVS; n++) {
 117         index = drive_get_index(IF_SCSI, 0, n);
 118         if (index == -1)
 119             continue;
 120         lsi_scsi_attach(scsi_hba, drives_table[index].bdrv, n);
 121     }
 122     for(n = 0; n < nb_nics; n++) {
 123         nd = &nd_table[n];
 124         if (!nd->model)
 125             nd->model = done_smc ? "rtl8139" : "smc91c111";
 126         if (strcmp(nd->model, "smc91c111") == 0) {
 127             smc91c111_init(nd, 0x4e000000, pic[28]);
 128         } else {
 129             pci_nic_init(pci_bus, nd, -1);
 130         }
 131     }
 132
 133     /* Memory map for RealView Emulation Baseboard:  */
 134     /* 0x10000000 System registers.  */
 135     /*  0x10001000 System controller.  */
 136     /*  0x10002000 Two-Wire Serial Bus.  */
 137     /* 0x10003000 Reserved.  */
 138     /*  0x10004000 AACI.  */
 139     /*  0x10005000 MCI.  */
 140     /* 0x10006000 KMI0.  */
 141     /* 0x10007000 KMI1.  */
 142     /*  0x10008000 Character LCD.  */
 143     /* 0x10009000 UART0.  */
 144     /* 0x1000a000 UART1.  */
 145     /* 0x1000b000 UART2.  */
 146     /* 0x1000c000 UART3.  */
 147     /*  0x1000d000 SSPI.  */
 148     /*  0x1000e000 SCI.  */
 149     /* 0x1000f000 Reserved.  */
 150     /*  0x10010000 Watchdog.  */
 151     /* 0x10011000 Timer 0+1.  */
 152     /* 0x10012000 Timer 2+3.  */
 153     /*  0x10013000 GPIO 0.  */
 154     /*  0x10014000 GPIO 1.  */
 155     /*  0x10015000 GPIO 2.  */
 156     /* 0x10016000 Reserved.  */
 157     /* 0x10017000 RTC.  */
 158     /*  0x10018000 DMC.  */
 159     /*  0x10019000 PCI controller config.  */
 160     /*  0x10020000 CLCD.  */
 161     /* 0x10030000 DMA Controller.  */
 162     /* 0x10040000 GIC1.  */
 163     /* 0x10050000 GIC2.  */
 164     /* 0x10060000 GIC3.  */
 165     /* 0x10070000 GIC4.  */
 166     /*  0x10080000 SMC.  */
 167     /*  0x40000000 NOR flash.  */
 168     /*  0x44000000 DoC flash.  */
 169     /*  0x48000000 SRAM.  */
 170     /*  0x4c000000 Configuration flash.  */
 171     /* 0x4e000000 Ethernet.  */
 172     /*  0x4f000000 USB.  */
 173     /*  0x50000000 PISMO.  */
 174     /*  0x54000000 PISMO.  */
 175     /*  0x58000000 PISMO.  */
 176     /*  0x5c000000 PISMO.  */
 177     /* 0x60000000 PCI.  */
 178     /* 0x61000000 PCI Self Config.  */
 179     /* 0x62000000 PCI Config.  */
 180     /* 0x63000000 PCI IO.  */
 181     /* 0x64000000 PCI mem 0.  */
 182     /* 0x68000000 PCI mem 1.  */
 183     /* 0x6c000000 PCI mem 2.  */
 184
 185     realview_binfo.ram_size = ram_size;
 186     realview_binfo.kernel_filename = kernel_filename;
 187     realview_binfo.kernel_cmdline = kernel_cmdline;
 188     realview_binfo.initrd_filename = initrd_filename;
 189     realview_binfo.nb_cpus = ncpu;
 190     arm_load_kernel(first_cpu, &realview_binfo);
 191
 192     /* ??? Hack to map an additional page of ram for the secondary CPU
 193        startup code.  I guess this works on real hardware because the
 194        BootROM happens to be in ROM/flash or in memory that isn't clobbered
 195        until after Linux boots the secondary CPUs.  */
 196     cpu_register_physical_memory(0x80000000, 0x1000, IO_MEM_RAM + ram_size);
 197 }
 198
 199 QEMUMachine realview_machine = {
 200     "realview",
 201     "ARM RealView Emulation Baseboard (ARM926EJ-S)",
 202     realview_init,
 203     0x1000
 204 };