Annotation of qemu/hw/versatilepb.c, revision 1.1.1.12

1.1.1.4   root        1: /*
1.1       root        2:  * ARM Versatile Platform/Application Baseboard System emulation.
                      3:  *
1.1.1.4   root        4:  * Copyright (c) 2005-2007 CodeSourcery.
1.1       root        5:  * Written by Paul Brook
                      6:  *
1.1.1.10  root        7:  * This code is licensed under the GPL.
1.1       root        8:  */
                      9: 
1.1.1.6   root       10: #include "sysbus.h"
1.1.1.4   root       11: #include "arm-misc.h"
                     12: #include "devices.h"
                     13: #include "net.h"
                     14: #include "sysemu.h"
                     15: #include "pci.h"
1.1.1.12! root       16: #include "i2c.h"
1.1.1.4   root       17: #include "boards.h"
1.1.1.9   root       18: #include "blockdev.h"
1.1.1.12! root       19: #include "exec-memory.h"
        !            20: #include "flash.h"
        !            21: 
        !            22: #define VERSATILE_FLASH_ADDR 0x34000000
        !            23: #define VERSATILE_FLASH_SIZE (64 * 1024 * 1024)
        !            24: #define VERSATILE_FLASH_SECT_SIZE (256 * 1024)
1.1       root       25: 
                     26: /* Primary interrupt controller.  */
                     27: 
                     28: typedef struct vpb_sic_state
                     29: {
1.1.1.6   root       30:   SysBusDevice busdev;
1.1.1.12! root       31:   MemoryRegion iomem;
1.1       root       32:   uint32_t level;
                     33:   uint32_t mask;
                     34:   uint32_t pic_enable;
1.1.1.6   root       35:   qemu_irq parent[32];
1.1       root       36:   int irq;
                     37: } vpb_sic_state;
                     38: 
1.1.1.9   root       39: static const VMStateDescription vmstate_vpb_sic = {
                     40:     .name = "versatilepb_sic",
                     41:     .version_id = 1,
                     42:     .minimum_version_id = 1,
                     43:     .fields = (VMStateField[]) {
                     44:         VMSTATE_UINT32(level, vpb_sic_state),
                     45:         VMSTATE_UINT32(mask, vpb_sic_state),
                     46:         VMSTATE_UINT32(pic_enable, vpb_sic_state),
                     47:         VMSTATE_END_OF_LIST()
                     48:     }
                     49: };
                     50: 
1.1       root       51: static void vpb_sic_update(vpb_sic_state *s)
                     52: {
                     53:     uint32_t flags;
                     54: 
                     55:     flags = s->level & s->mask;
1.1.1.4   root       56:     qemu_set_irq(s->parent[s->irq], flags != 0);
1.1       root       57: }
                     58: 
                     59: static void vpb_sic_update_pic(vpb_sic_state *s)
                     60: {
                     61:     int i;
                     62:     uint32_t mask;
                     63: 
                     64:     for (i = 21; i <= 30; i++) {
                     65:         mask = 1u << i;
                     66:         if (!(s->pic_enable & mask))
                     67:             continue;
1.1.1.4   root       68:         qemu_set_irq(s->parent[i], (s->level & mask) != 0);
1.1       root       69:     }
                     70: }
                     71: 
                     72: static void vpb_sic_set_irq(void *opaque, int irq, int level)
                     73: {
                     74:     vpb_sic_state *s = (vpb_sic_state *)opaque;
                     75:     if (level)
                     76:         s->level |= 1u << irq;
                     77:     else
                     78:         s->level &= ~(1u << irq);
                     79:     if (s->pic_enable & (1u << irq))
1.1.1.4   root       80:         qemu_set_irq(s->parent[irq], level);
1.1       root       81:     vpb_sic_update(s);
                     82: }
                     83: 
1.1.1.12! root       84: static uint64_t vpb_sic_read(void *opaque, target_phys_addr_t offset,
        !            85:                              unsigned size)
1.1       root       86: {
                     87:     vpb_sic_state *s = (vpb_sic_state *)opaque;
                     88: 
                     89:     switch (offset >> 2) {
                     90:     case 0: /* STATUS */
                     91:         return s->level & s->mask;
                     92:     case 1: /* RAWSTAT */
                     93:         return s->level;
                     94:     case 2: /* ENABLE */
                     95:         return s->mask;
                     96:     case 4: /* SOFTINT */
                     97:         return s->level & 1;
                     98:     case 8: /* PICENABLE */
                     99:         return s->pic_enable;
                    100:     default:
1.1.1.3   root      101:         printf ("vpb_sic_read: Bad register offset 0x%x\n", (int)offset);
1.1       root      102:         return 0;
                    103:     }
                    104: }
                    105: 
                    106: static void vpb_sic_write(void *opaque, target_phys_addr_t offset,
1.1.1.12! root      107:                           uint64_t value, unsigned size)
1.1       root      108: {
                    109:     vpb_sic_state *s = (vpb_sic_state *)opaque;
                    110: 
                    111:     switch (offset >> 2) {
                    112:     case 2: /* ENSET */
                    113:         s->mask |= value;
                    114:         break;
                    115:     case 3: /* ENCLR */
                    116:         s->mask &= ~value;
                    117:         break;
                    118:     case 4: /* SOFTINTSET */
                    119:         if (value)
                    120:             s->mask |= 1;
                    121:         break;
                    122:     case 5: /* SOFTINTCLR */
                    123:         if (value)
                    124:             s->mask &= ~1u;
                    125:         break;
                    126:     case 8: /* PICENSET */
                    127:         s->pic_enable |= (value & 0x7fe00000);
                    128:         vpb_sic_update_pic(s);
                    129:         break;
                    130:     case 9: /* PICENCLR */
                    131:         s->pic_enable &= ~value;
                    132:         vpb_sic_update_pic(s);
                    133:         break;
                    134:     default:
1.1.1.3   root      135:         printf ("vpb_sic_write: Bad register offset 0x%x\n", (int)offset);
1.1       root      136:         return;
                    137:     }
                    138:     vpb_sic_update(s);
                    139: }
                    140: 
1.1.1.12! root      141: static const MemoryRegionOps vpb_sic_ops = {
        !           142:     .read = vpb_sic_read,
        !           143:     .write = vpb_sic_write,
        !           144:     .endianness = DEVICE_NATIVE_ENDIAN,
1.1       root      145: };
                    146: 
1.1.1.7   root      147: static int vpb_sic_init(SysBusDevice *dev)
1.1       root      148: {
1.1.1.6   root      149:     vpb_sic_state *s = FROM_SYSBUS(vpb_sic_state, dev);
                    150:     int i;
1.1       root      151: 
1.1.1.6   root      152:     qdev_init_gpio_in(&dev->qdev, vpb_sic_set_irq, 32);
                    153:     for (i = 0; i < 32; i++) {
                    154:         sysbus_init_irq(dev, &s->parent[i]);
                    155:     }
                    156:     s->irq = 31;
1.1.1.12! root      157:     memory_region_init_io(&s->iomem, &vpb_sic_ops, s, "vpb-sic", 0x1000);
        !           158:     sysbus_init_mmio(dev, &s->iomem);
1.1.1.7   root      159:     return 0;
1.1       root      160: }
                    161: 
                    162: /* Board init.  */
                    163: 
                    164: /* The AB and PB boards both use the same core, just with different
                    165:    peripherans and expansion busses.  For now we emulate a subset of the
                    166:    PB peripherals and just change the board ID.  */
                    167: 
1.1.1.5   root      168: static struct arm_boot_info versatile_binfo;
                    169: 
1.1.1.6   root      170: static void versatile_init(ram_addr_t ram_size,
1.1.1.5   root      171:                      const char *boot_device,
1.1       root      172:                      const char *kernel_filename, const char *kernel_cmdline,
1.1.1.4   root      173:                      const char *initrd_filename, const char *cpu_model,
                    174:                      int board_id)
1.1       root      175: {
1.1.1.12! root      176:     CPUARMState *env;
        !           177:     MemoryRegion *sysmem = get_system_memory();
        !           178:     MemoryRegion *ram = g_new(MemoryRegion, 1);
1.1.1.6   root      179:     qemu_irq *cpu_pic;
                    180:     qemu_irq pic[32];
                    181:     qemu_irq sic[32];
1.1.1.11  root      182:     DeviceState *dev, *sysctl;
                    183:     SysBusDevice *busdev;
                    184:     DeviceState *pl041;
1.1.1.2   root      185:     PCIBus *pci_bus;
                    186:     NICInfo *nd;
1.1.1.12! root      187:     i2c_bus *i2c;
1.1.1.2   root      188:     int n;
                    189:     int done_smc = 0;
1.1.1.12! root      190:     DriveInfo *dinfo;
1.1       root      191: 
1.1.1.4   root      192:     if (!cpu_model)
                    193:         cpu_model = "arm926";
                    194:     env = cpu_init(cpu_model);
                    195:     if (!env) {
                    196:         fprintf(stderr, "Unable to find CPU definition\n");
                    197:         exit(1);
                    198:     }
1.1.1.12! root      199:     memory_region_init_ram(ram, "versatile.ram", ram_size);
        !           200:     vmstate_register_ram_global(ram);
1.1.1.5   root      201:     /* ??? RAM should repeat to fill physical memory space.  */
1.1       root      202:     /* SDRAM at address zero.  */
1.1.1.12! root      203:     memory_region_add_subregion(sysmem, 0, ram);
1.1       root      204: 
1.1.1.11  root      205:     sysctl = qdev_create(NULL, "realview_sysctl");
                    206:     qdev_prop_set_uint32(sysctl, "sys_id", 0x41007004);
                    207:     qdev_prop_set_uint32(sysctl, "proc_id", 0x02000000);
1.1.1.12! root      208:     qdev_init_nofail(sysctl);
1.1.1.11  root      209:     sysbus_mmio_map(sysbus_from_qdev(sysctl), 0, 0x10000000);
                    210: 
1.1.1.6   root      211:     cpu_pic = arm_pic_init_cpu(env);
                    212:     dev = sysbus_create_varargs("pl190", 0x10140000,
                    213:                                 cpu_pic[0], cpu_pic[1], NULL);
                    214:     for (n = 0; n < 32; n++) {
                    215:         pic[n] = qdev_get_gpio_in(dev, n);
                    216:     }
                    217:     dev = sysbus_create_simple("versatilepb_sic", 0x10003000, NULL);
                    218:     for (n = 0; n < 32; n++) {
                    219:         sysbus_connect_irq(sysbus_from_qdev(dev), n, pic[n]);
                    220:         sic[n] = qdev_get_gpio_in(dev, n);
                    221:     }
                    222: 
                    223:     sysbus_create_simple("pl050_keyboard", 0x10006000, sic[3]);
                    224:     sysbus_create_simple("pl050_mouse", 0x10007000, sic[4]);
                    225: 
1.1.1.11  root      226:     dev = qdev_create(NULL, "versatile_pci");
                    227:     busdev = sysbus_from_qdev(dev);
                    228:     qdev_init_nofail(dev);
                    229:     sysbus_mmio_map(busdev, 0, 0x41000000); /* PCI self-config */
                    230:     sysbus_mmio_map(busdev, 1, 0x42000000); /* PCI config */
                    231:     sysbus_connect_irq(busdev, 0, sic[27]);
                    232:     sysbus_connect_irq(busdev, 1, sic[28]);
                    233:     sysbus_connect_irq(busdev, 2, sic[29]);
                    234:     sysbus_connect_irq(busdev, 3, sic[30]);
1.1.1.6   root      235:     pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci");
1.1       root      236: 
1.1.1.2   root      237:     /* The Versatile PCI bridge does not provide access to PCI IO space,
                    238:        so many of the qemu PCI devices are not useable.  */
                    239:     for(n = 0; n < nb_nics; n++) {
                    240:         nd = &nd_table[n];
1.1.1.5   root      241: 
1.1.1.10  root      242:         if (!done_smc && (!nd->model || strcmp(nd->model, "smc91c111") == 0)) {
1.1.1.4   root      243:             smc91c111_init(nd, 0x10010000, sic[25]);
1.1.1.5   root      244:             done_smc = 1;
1.1       root      245:         } else {
1.1.1.7   root      246:             pci_nic_init_nofail(nd, "rtl8139", NULL);
1.1.1.2   root      247:         }
                    248:     }
                    249:     if (usb_enabled) {
1.1.1.12! root      250:         pci_create_simple(pci_bus, -1, "pci-ohci");
1.1.1.4   root      251:     }
1.1.1.6   root      252:     n = drive_get_max_bus(IF_SCSI);
                    253:     while (n >= 0) {
                    254:         pci_create_simple(pci_bus, -1, "lsi53c895a");
                    255:         n--;
1.1       root      256:     }
                    257: 
1.1.1.6   root      258:     sysbus_create_simple("pl011", 0x101f1000, pic[12]);
                    259:     sysbus_create_simple("pl011", 0x101f2000, pic[13]);
                    260:     sysbus_create_simple("pl011", 0x101f3000, pic[14]);
                    261:     sysbus_create_simple("pl011", 0x10009000, sic[6]);
                    262: 
                    263:     sysbus_create_simple("pl080", 0x10130000, pic[17]);
                    264:     sysbus_create_simple("sp804", 0x101e2000, pic[4]);
                    265:     sysbus_create_simple("sp804", 0x101e3000, pic[5]);
1.1       root      266: 
                    267:     /* The versatile/PB actually has a modified Color LCD controller
                    268:        that includes hardware cursor support from the PL111.  */
1.1.1.11  root      269:     dev = sysbus_create_simple("pl110_versatile", 0x10120000, pic[16]);
                    270:     /* Wire up the mux control signals from the SYS_CLCD register */
                    271:     qdev_connect_gpio_out(sysctl, 0, qdev_get_gpio_in(dev, 0));
1.1.1.4   root      272: 
1.1.1.6   root      273:     sysbus_create_varargs("pl181", 0x10005000, sic[22], sic[1], NULL);
                    274:     sysbus_create_varargs("pl181", 0x1000b000, sic[23], sic[2], NULL);
1.1.1.4   root      275: 
                    276:     /* Add PL031 Real Time Clock. */
1.1.1.6   root      277:     sysbus_create_simple("pl031", 0x101e8000, pic[10]);
1.1       root      278: 
1.1.1.12! root      279:     dev = sysbus_create_simple("versatile_i2c", 0x10002000, NULL);
        !           280:     i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c");
        !           281:     i2c_create_slave(i2c, "ds1338", 0x68);
        !           282: 
1.1.1.11  root      283:     /* Add PL041 AACI Interface to the LM4549 codec */
                    284:     pl041 = qdev_create(NULL, "pl041");
                    285:     qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
                    286:     qdev_init_nofail(pl041);
                    287:     sysbus_mmio_map(sysbus_from_qdev(pl041), 0, 0x10004000);
                    288:     sysbus_connect_irq(sysbus_from_qdev(pl041), 0, sic[24]);
                    289: 
1.1       root      290:     /* Memory map for Versatile/PB:  */
                    291:     /* 0x10000000 System registers.  */
                    292:     /* 0x10001000 PCI controller config registers.  */
                    293:     /* 0x10002000 Serial bus interface.  */
                    294:     /*  0x10003000 Secondary interrupt controller.  */
                    295:     /* 0x10004000 AACI (audio).  */
1.1.1.4   root      296:     /*  0x10005000 MMCI0.  */
1.1       root      297:     /*  0x10006000 KMI0 (keyboard).  */
                    298:     /*  0x10007000 KMI1 (mouse).  */
                    299:     /* 0x10008000 Character LCD Interface.  */
                    300:     /*  0x10009000 UART3.  */
                    301:     /* 0x1000a000 Smart card 1.  */
1.1.1.4   root      302:     /*  0x1000b000 MMCI1.  */
1.1       root      303:     /*  0x10010000 Ethernet.  */
                    304:     /* 0x10020000 USB.  */
                    305:     /* 0x10100000 SSMC.  */
                    306:     /* 0x10110000 MPMC.  */
                    307:     /*  0x10120000 CLCD Controller.  */
                    308:     /*  0x10130000 DMA Controller.  */
                    309:     /*  0x10140000 Vectored interrupt controller.  */
                    310:     /* 0x101d0000 AHB Monitor Interface.  */
                    311:     /* 0x101e0000 System Controller.  */
                    312:     /* 0x101e1000 Watchdog Interface.  */
                    313:     /* 0x101e2000 Timer 0/1.  */
                    314:     /* 0x101e3000 Timer 2/3.  */
                    315:     /* 0x101e4000 GPIO port 0.  */
                    316:     /* 0x101e5000 GPIO port 1.  */
                    317:     /* 0x101e6000 GPIO port 2.  */
                    318:     /* 0x101e7000 GPIO port 3.  */
                    319:     /* 0x101e8000 RTC.  */
                    320:     /* 0x101f0000 Smart card 0.  */
                    321:     /*  0x101f1000 UART0.  */
                    322:     /*  0x101f2000 UART1.  */
                    323:     /*  0x101f3000 UART2.  */
                    324:     /* 0x101f4000 SSPI.  */
1.1.1.12! root      325:     /* 0x34000000 NOR Flash */
        !           326: 
        !           327:     dinfo = drive_get(IF_PFLASH, 0, 0);
        !           328:     if (!pflash_cfi01_register(VERSATILE_FLASH_ADDR, NULL, "versatile.flash",
        !           329:                           VERSATILE_FLASH_SIZE, dinfo ? dinfo->bdrv : NULL,
        !           330:                           VERSATILE_FLASH_SECT_SIZE,
        !           331:                           VERSATILE_FLASH_SIZE / VERSATILE_FLASH_SECT_SIZE,
        !           332:                           4, 0x0089, 0x0018, 0x0000, 0x0, 0)) {
        !           333:         fprintf(stderr, "qemu: Error registering flash memory.\n");
        !           334:     }
1.1       root      335: 
1.1.1.5   root      336:     versatile_binfo.ram_size = ram_size;
                    337:     versatile_binfo.kernel_filename = kernel_filename;
                    338:     versatile_binfo.kernel_cmdline = kernel_cmdline;
                    339:     versatile_binfo.initrd_filename = initrd_filename;
                    340:     versatile_binfo.board_id = board_id;
                    341:     arm_load_kernel(env, &versatile_binfo);
1.1       root      342: }
                    343: 
1.1.1.6   root      344: static void vpb_init(ram_addr_t ram_size,
1.1.1.5   root      345:                      const char *boot_device,
1.1       root      346:                      const char *kernel_filename, const char *kernel_cmdline,
1.1.1.4   root      347:                      const char *initrd_filename, const char *cpu_model)
1.1       root      348: {
1.1.1.6   root      349:     versatile_init(ram_size,
1.1.1.5   root      350:                    boot_device,
1.1       root      351:                    kernel_filename, kernel_cmdline,
1.1.1.4   root      352:                    initrd_filename, cpu_model, 0x183);
1.1       root      353: }
                    354: 
1.1.1.6   root      355: static void vab_init(ram_addr_t ram_size,
1.1.1.5   root      356:                      const char *boot_device,
1.1       root      357:                      const char *kernel_filename, const char *kernel_cmdline,
1.1.1.4   root      358:                      const char *initrd_filename, const char *cpu_model)
1.1       root      359: {
1.1.1.6   root      360:     versatile_init(ram_size,
1.1.1.5   root      361:                    boot_device,
1.1       root      362:                    kernel_filename, kernel_cmdline,
1.1.1.4   root      363:                    initrd_filename, cpu_model, 0x25e);
1.1       root      364: }
                    365: 
1.1.1.6   root      366: static QEMUMachine versatilepb_machine = {
1.1.1.5   root      367:     .name = "versatilepb",
                    368:     .desc = "ARM Versatile/PB (ARM926EJ-S)",
                    369:     .init = vpb_init,
                    370:     .use_scsi = 1,
1.1       root      371: };
                    372: 
1.1.1.6   root      373: static QEMUMachine versatileab_machine = {
1.1.1.5   root      374:     .name = "versatileab",
                    375:     .desc = "ARM Versatile/AB (ARM926EJ-S)",
                    376:     .init = vab_init,
                    377:     .use_scsi = 1,
1.1       root      378: };
1.1.1.6   root      379: 
                    380: static void versatile_machine_init(void)
                    381: {
                    382:     qemu_register_machine(&versatilepb_machine);
                    383:     qemu_register_machine(&versatileab_machine);
                    384: }
                    385: 
                    386: machine_init(versatile_machine_init);
                    387: 
1.1.1.12! root      388: static void vpb_sic_class_init(ObjectClass *klass, void *data)
        !           389: {
        !           390:     DeviceClass *dc = DEVICE_CLASS(klass);
        !           391:     SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
        !           392: 
        !           393:     k->init = vpb_sic_init;
        !           394:     dc->no_user = 1;
        !           395:     dc->vmsd = &vmstate_vpb_sic;
        !           396: }
        !           397: 
        !           398: static TypeInfo vpb_sic_info = {
        !           399:     .name          = "versatilepb_sic",
        !           400:     .parent        = TYPE_SYS_BUS_DEVICE,
        !           401:     .instance_size = sizeof(vpb_sic_state),
        !           402:     .class_init    = vpb_sic_class_init,
1.1.1.9   root      403: };
                    404: 
1.1.1.12! root      405: static void versatilepb_register_types(void)
1.1.1.6   root      406: {
1.1.1.12! root      407:     type_register_static(&vpb_sic_info);
1.1.1.6   root      408: }
                    409: 
1.1.1.12! root      410: type_init(versatilepb_register_types)

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