hw/versatilepb.c

   1 /*
   2  * ARM Versatile Platform/Application Baseboard System emulation.
   3  *
   4  * Copyright (c) 2005-2007 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 "net.h"
  15 #include "sysemu.h"
  16 #include "pci.h"
  17 #include "boards.h"
  18
  19 /* Primary interrupt controller.  */
  20
  21 typedef struct vpb_sic_state
  22 {
  23   uint32_t base;
  24   uint32_t level;
  25   uint32_t mask;
  26   uint32_t pic_enable;
  27   qemu_irq *parent;
  28   int irq;
  29 } vpb_sic_state;
  30
  31 static void vpb_sic_update(vpb_sic_state *s)
  32 {
  33     uint32_t flags;
  34
  35     flags = s->level & s->mask;
  36     qemu_set_irq(s->parent[s->irq], flags != 0);
  37 }
  38
  39 static void vpb_sic_update_pic(vpb_sic_state *s)
  40 {
  41     int i;
  42     uint32_t mask;
  43
  44     for (i = 21; i <= 30; i++) {
  45         mask = 1u << i;
  46         if (!(s->pic_enable & mask))
  47             continue;
  48         qemu_set_irq(s->parent[i], (s->level & mask) != 0);
  49     }
  50 }
  51
  52 static void vpb_sic_set_irq(void *opaque, int irq, int level)
  53 {
  54     vpb_sic_state *s = (vpb_sic_state *)opaque;
  55     if (level)
  56         s->level |= 1u << irq;
  57     else
  58         s->level &= ~(1u << irq);
  59     if (s->pic_enable & (1u << irq))
  60         qemu_set_irq(s->parent[irq], level);
  61     vpb_sic_update(s);
  62 }
  63
  64 static uint32_t vpb_sic_read(void *opaque, target_phys_addr_t offset)
  65 {
  66     vpb_sic_state *s = (vpb_sic_state *)opaque;
  67
  68     offset -= s->base;
  69     switch (offset >> 2) {
  70     case 0: /* STATUS */
  71         return s->level & s->mask;
  72     case 1: /* RAWSTAT */
  73         return s->level;
  74     case 2: /* ENABLE */
  75         return s->mask;
  76     case 4: /* SOFTINT */
  77         return s->level & 1;
  78     case 8: /* PICENABLE */
  79         return s->pic_enable;
  80     default:
  81         printf ("vpb_sic_read: Bad register offset 0x%x\n", (int)offset);
  82         return 0;
  83     }
  84 }
  85
  86 static void vpb_sic_write(void *opaque, target_phys_addr_t offset,
  87                           uint32_t value)
  88 {
  89     vpb_sic_state *s = (vpb_sic_state *)opaque;
  90     offset -= s->base;
  91
  92     switch (offset >> 2) {
  93     case 2: /* ENSET */
  94         s->mask |= value;
  95         break;
  96     case 3: /* ENCLR */
  97         s->mask &= ~value;
  98         break;
  99     case 4: /* SOFTINTSET */
 100         if (value)
 101             s->mask |= 1;
 102         break;
 103     case 5: /* SOFTINTCLR */
 104         if (value)
 105             s->mask &= ~1u;
 106         break;
 107     case 8: /* PICENSET */
 108         s->pic_enable |= (value & 0x7fe00000);
 109         vpb_sic_update_pic(s);
 110         break;
 111     case 9: /* PICENCLR */
 112         s->pic_enable &= ~value;
 113         vpb_sic_update_pic(s);
 114         break;
 115     default:
 116         printf ("vpb_sic_write: Bad register offset 0x%x\n", (int)offset);
 117         return;
 118     }
 119     vpb_sic_update(s);
 120 }
 121
 122 static CPUReadMemoryFunc *vpb_sic_readfn[] = {
 123    vpb_sic_read,
 124    vpb_sic_read,
 125    vpb_sic_read
 126 };
 127
 128 static CPUWriteMemoryFunc *vpb_sic_writefn[] = {
 129    vpb_sic_write,
 130    vpb_sic_write,
 131    vpb_sic_write
 132 };
 133
 134 static qemu_irq *vpb_sic_init(uint32_t base, qemu_irq *parent, int irq)
 135 {
 136     vpb_sic_state *s;
 137     qemu_irq *qi;
 138     int iomemtype;
 139
 140     s = (vpb_sic_state *)qemu_mallocz(sizeof(vpb_sic_state));
 141     if (!s)
 142         return NULL;
 143     qi = qemu_allocate_irqs(vpb_sic_set_irq, s, 32);
 144     s->base = base;
 145     s->parent = parent;
 146     s->irq = irq;
 147     iomemtype = cpu_register_io_memory(0, vpb_sic_readfn,
 148                                        vpb_sic_writefn, s);
 149     cpu_register_physical_memory(base, 0x00001000, iomemtype);
 150     /* ??? Save/restore.  */
 151     return qi;
 152 }
 153
 154 /* Board init.  */
 155
 156 /* The AB and PB boards both use the same core, just with different
 157    peripherans and expansion busses.  For now we emulate a subset of the
 158    PB peripherals and just change the board ID.  */
 159
 160 static void versatile_init(int ram_size, int vga_ram_size,
 161                      const char *boot_device, DisplayState *ds,
 162                      const char *kernel_filename, const char *kernel_cmdline,
 163                      const char *initrd_filename, const char *cpu_model,
 164                      int board_id)
 165 {
 166     CPUState *env;
 167     qemu_irq *pic;
 168     qemu_irq *sic;
 169     void *scsi_hba;
 170     PCIBus *pci_bus;
 171     NICInfo *nd;
 172     int n;
 173     int done_smc = 0;
 174
 175     if (!cpu_model)
 176         cpu_model = "arm926";
 177     env = cpu_init(cpu_model);
 178     if (!env) {
 179         fprintf(stderr, "Unable to find CPU definition\n");
 180         exit(1);
 181     }
 182     /* ??? RAM shoud repeat to fill physical memory space.  */
 183     /* SDRAM at address zero.  */
 184     cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
 185
 186     arm_sysctl_init(0x10000000, 0x41007004);
 187     pic = arm_pic_init_cpu(env);
 188     pic = pl190_init(0x10140000, pic[0], pic[1]);
 189     sic = vpb_sic_init(0x10003000, pic, 31);
 190     pl050_init(0x10006000, sic[3], 0);
 191     pl050_init(0x10007000, sic[4], 1);
 192
 193     pci_bus = pci_vpb_init(sic, 27, 0);
 194     /* The Versatile PCI bridge does not provide access to PCI IO space,
 195        so many of the qemu PCI devices are not useable.  */
 196     for(n = 0; n < nb_nics; n++) {
 197         nd = &nd_table[n];
 198         if (!nd->model)
 199             nd->model = done_smc ? "rtl8139" : "smc91c111";
 200         if (strcmp(nd->model, "smc91c111") == 0) {
 201             smc91c111_init(nd, 0x10010000, sic[25]);
 202         } else {
 203             pci_nic_init(pci_bus, nd, -1);
 204         }
 205     }
 206     if (usb_enabled) {
 207         usb_ohci_init_pci(pci_bus, 3, -1);
 208     }
 209     scsi_hba = lsi_scsi_init(pci_bus, -1);
 210     for (n = 0; n < MAX_DISKS; n++) {
 211         if (bs_table[n]) {
 212             lsi_scsi_attach(scsi_hba, bs_table[n], n);
 213         }
 214     }
 215
 216     pl011_init(0x101f1000, pic[12], serial_hds[0], PL011_ARM);
 217     pl011_init(0x101f2000, pic[13], serial_hds[1], PL011_ARM);
 218     pl011_init(0x101f3000, pic[14], serial_hds[2], PL011_ARM);
 219     pl011_init(0x10009000, sic[6], serial_hds[3], PL011_ARM);
 220
 221     pl080_init(0x10130000, pic[17], 8);
 222     sp804_init(0x101e2000, pic[4]);
 223     sp804_init(0x101e3000, pic[5]);
 224
 225     /* The versatile/PB actually has a modified Color LCD controller
 226        that includes hardware cursor support from the PL111.  */
 227     pl110_init(ds, 0x10120000, pic[16], 1);
 228
 229     pl181_init(0x10005000, sd_bdrv, sic[22], sic[1]);
 230 #if 0
 231     /* Disabled because there's no way of specifying a block device.  */
 232     pl181_init(0x1000b000, NULL, sic, 23, 2);
 233 #endif
 234
 235     /* Add PL031 Real Time Clock. */
 236     pl031_init(0x101e8000,pic[10]);
 237
 238     /* Memory map for Versatile/PB:  */
 239     /* 0x10000000 System registers.  */
 240     /* 0x10001000 PCI controller config registers.  */
 241     /* 0x10002000 Serial bus interface.  */
 242     /*  0x10003000 Secondary interrupt controller.  */
 243     /* 0x10004000 AACI (audio).  */
 244     /*  0x10005000 MMCI0.  */
 245     /*  0x10006000 KMI0 (keyboard).  */
 246     /*  0x10007000 KMI1 (mouse).  */
 247     /* 0x10008000 Character LCD Interface.  */
 248     /*  0x10009000 UART3.  */
 249     /* 0x1000a000 Smart card 1.  */
 250     /*  0x1000b000 MMCI1.  */
 251     /*  0x10010000 Ethernet.  */
 252     /* 0x10020000 USB.  */
 253     /* 0x10100000 SSMC.  */
 254     /* 0x10110000 MPMC.  */
 255     /*  0x10120000 CLCD Controller.  */
 256     /*  0x10130000 DMA Controller.  */
 257     /*  0x10140000 Vectored interrupt controller.  */
 258     /* 0x101d0000 AHB Monitor Interface.  */
 259     /* 0x101e0000 System Controller.  */
 260     /* 0x101e1000 Watchdog Interface.  */
 261     /* 0x101e2000 Timer 0/1.  */
 262     /* 0x101e3000 Timer 2/3.  */
 263     /* 0x101e4000 GPIO port 0.  */
 264     /* 0x101e5000 GPIO port 1.  */
 265     /* 0x101e6000 GPIO port 2.  */
 266     /* 0x101e7000 GPIO port 3.  */
 267     /* 0x101e8000 RTC.  */
 268     /* 0x101f0000 Smart card 0.  */
 269     /*  0x101f1000 UART0.  */
 270     /*  0x101f2000 UART1.  */
 271     /*  0x101f3000 UART2.  */
 272     /* 0x101f4000 SSPI.  */
 273
 274     arm_load_kernel(env, ram_size, kernel_filename, kernel_cmdline,
 275                     initrd_filename, board_id, 0x0);
 276 }
 277
 278 static void vpb_init(int ram_size, int vga_ram_size,
 279                      const char *boot_device, DisplayState *ds,
 280                      const char *kernel_filename, const char *kernel_cmdline,
 281                      const char *initrd_filename, const char *cpu_model)
 282 {
 283     versatile_init(ram_size, vga_ram_size,
 284                    boot_device, ds,
 285                    kernel_filename, kernel_cmdline,
 286                    initrd_filename, cpu_model, 0x183);
 287 }
 288
 289 static void vab_init(int ram_size, int vga_ram_size,
 290                      const char *boot_device, DisplayState *ds,
 291                      const char *kernel_filename, const char *kernel_cmdline,
 292                      const char *initrd_filename, const char *cpu_model)
 293 {
 294     versatile_init(ram_size, vga_ram_size,
 295                    boot_device, ds,
 296                    kernel_filename, kernel_cmdline,
 297                    initrd_filename, cpu_model, 0x25e);
 298 }
 299
 300 QEMUMachine versatilepb_machine = {
 301     "versatilepb",
 302     "ARM Versatile/PB (ARM926EJ-S)",
 303     vpb_init,
 304 };
 305
 306 QEMUMachine versatileab_machine = {
 307     "versatileab",
 308     "ARM Versatile/AB (ARM926EJ-S)",
 309     vab_init,
 310 };