/* * QEMU PowerPC 4xx embedded processors shared devices emulation * * Copyright (c) 2007 Jocelyn Mayer * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include "qemu/units.h" #include "sysemu/reset.h" #include "cpu.h" #include "hw/irq.h" #include "hw/ppc/ppc.h" #include "hw/ppc/ppc4xx.h" #include "hw/qdev-properties.h" #include "qemu/log.h" #include "exec/address-spaces.h" #include "qemu/error-report.h" #include "qapi/error.h" #include "trace.h" /*****************************************************************************/ /* SDRAM controller */ typedef struct ppc4xx_sdram_t ppc4xx_sdram_t; struct ppc4xx_sdram_t { uint32_t addr; int nbanks; MemoryRegion containers[4]; /* used for clipping */ MemoryRegion *ram_memories; hwaddr ram_bases[4]; hwaddr ram_sizes[4]; uint32_t besr0; uint32_t besr1; uint32_t bear; uint32_t cfg; uint32_t status; uint32_t rtr; uint32_t pmit; uint32_t bcr[4]; uint32_t tr; uint32_t ecccfg; uint32_t eccesr; qemu_irq irq; }; enum { SDRAM0_CFGADDR = 0x010, SDRAM0_CFGDATA = 0x011, }; /* * XXX: TOFIX: some patches have made this code become inconsistent: * there are type inconsistencies, mixing hwaddr, target_ulong * and uint32_t */ static uint32_t sdram_bcr(hwaddr ram_base, hwaddr ram_size) { uint32_t bcr; switch (ram_size) { case 4 * MiB: bcr = 0x00000000; break; case 8 * MiB: bcr = 0x00020000; break; case 16 * MiB: bcr = 0x00040000; break; case 32 * MiB: bcr = 0x00060000; break; case 64 * MiB: bcr = 0x00080000; break; case 128 * MiB: bcr = 0x000A0000; break; case 256 * MiB: bcr = 0x000C0000; break; default: qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid RAM size 0x%" HWADDR_PRIx "\n", __func__, ram_size); return 0x00000000; } bcr |= ram_base & 0xFF800000; bcr |= 1; return bcr; } static inline hwaddr sdram_base(uint32_t bcr) { return bcr & 0xFF800000; } static target_ulong sdram_size(uint32_t bcr) { target_ulong size; int sh; sh = (bcr >> 17) & 0x7; if (sh == 7) { size = -1; } else { size = (4 * MiB) << sh; } return size; } static void sdram_set_bcr(ppc4xx_sdram_t *sdram, int i, uint32_t bcr, int enabled) { if (sdram->bcr[i] & 0x00000001) { /* Unmap RAM */ trace_ppc4xx_sdram_unmap(sdram_base(sdram->bcr[i]), sdram_size(sdram->bcr[i])); memory_region_del_subregion(get_system_memory(), &sdram->containers[i]); memory_region_del_subregion(&sdram->containers[i], &sdram->ram_memories[i]); object_unparent(OBJECT(&sdram->containers[i])); } sdram->bcr[i] = bcr & 0xFFDEE001; if (enabled && (bcr & 0x00000001)) { trace_ppc4xx_sdram_map(sdram_base(bcr), sdram_size(bcr)); memory_region_init(&sdram->containers[i], NULL, "sdram-containers", sdram_size(bcr)); memory_region_add_subregion(&sdram->containers[i], 0, &sdram->ram_memories[i]); memory_region_add_subregion(get_system_memory(), sdram_base(bcr), &sdram->containers[i]); } } static void sdram_map_bcr(ppc4xx_sdram_t *sdram) { int i; for (i = 0; i < sdram->nbanks; i++) { if (sdram->ram_sizes[i] != 0) { sdram_set_bcr(sdram, i, sdram_bcr(sdram->ram_bases[i], sdram->ram_sizes[i]), 1); } else { sdram_set_bcr(sdram, i, 0x00000000, 0); } } } static void sdram_unmap_bcr(ppc4xx_sdram_t *sdram) { int i; for (i = 0; i < sdram->nbanks; i++) { trace_ppc4xx_sdram_unmap(sdram_base(sdram->bcr[i]), sdram_size(sdram->bcr[i])); memory_region_del_subregion(get_system_memory(), &sdram->ram_memories[i]); } } static uint32_t dcr_read_sdram(void *opaque, int dcrn) { ppc4xx_sdram_t *sdram; uint32_t ret; sdram = opaque; switch (dcrn) { case SDRAM0_CFGADDR: ret = sdram->addr; break; case SDRAM0_CFGDATA: switch (sdram->addr) { case 0x00: /* SDRAM_BESR0 */ ret = sdram->besr0; break; case 0x08: /* SDRAM_BESR1 */ ret = sdram->besr1; break; case 0x10: /* SDRAM_BEAR */ ret = sdram->bear; break; case 0x20: /* SDRAM_CFG */ ret = sdram->cfg; break; case 0x24: /* SDRAM_STATUS */ ret = sdram->status; break; case 0x30: /* SDRAM_RTR */ ret = sdram->rtr; break; case 0x34: /* SDRAM_PMIT */ ret = sdram->pmit; break; case 0x40: /* SDRAM_B0CR */ ret = sdram->bcr[0]; break; case 0x44: /* SDRAM_B1CR */ ret = sdram->bcr[1]; break; case 0x48: /* SDRAM_B2CR */ ret = sdram->bcr[2]; break; case 0x4C: /* SDRAM_B3CR */ ret = sdram->bcr[3]; break; case 0x80: /* SDRAM_TR */ ret = -1; /* ? */ break; case 0x94: /* SDRAM_ECCCFG */ ret = sdram->ecccfg; break; case 0x98: /* SDRAM_ECCESR */ ret = sdram->eccesr; break; default: /* Error */ ret = -1; break; } break; default: /* Avoid gcc warning */ ret = 0x00000000; break; } return ret; } static void dcr_write_sdram(void *opaque, int dcrn, uint32_t val) { ppc4xx_sdram_t *sdram; sdram = opaque; switch (dcrn) { case SDRAM0_CFGADDR: sdram->addr = val; break; case SDRAM0_CFGDATA: switch (sdram->addr) { case 0x00: /* SDRAM_BESR0 */ sdram->besr0 &= ~val; break; case 0x08: /* SDRAM_BESR1 */ sdram->besr1 &= ~val; break; case 0x10: /* SDRAM_BEAR */ sdram->bear = val; break; case 0x20: /* SDRAM_CFG */ val &= 0xFFE00000; if (!(sdram->cfg & 0x80000000) && (val & 0x80000000)) { trace_ppc4xx_sdram_enable("enable"); /* validate all RAM mappings */ sdram_map_bcr(sdram); sdram->status &= ~0x80000000; } else if ((sdram->cfg & 0x80000000) && !(val & 0x80000000)) { trace_ppc4xx_sdram_enable("disable"); /* invalidate all RAM mappings */ sdram_unmap_bcr(sdram); sdram->status |= 0x80000000; } if (!(sdram->cfg & 0x40000000) && (val & 0x40000000)) { sdram->status |= 0x40000000; } else if ((sdram->cfg & 0x40000000) && !(val & 0x40000000)) { sdram->status &= ~0x40000000; } sdram->cfg = val; break; case 0x24: /* SDRAM_STATUS */ /* Read-only register */ break; case 0x30: /* SDRAM_RTR */ sdram->rtr = val & 0x3FF80000; break; case 0x34: /* SDRAM_PMIT */ sdram->pmit = (val & 0xF8000000) | 0x07C00000; break; case 0x40: /* SDRAM_B0CR */ sdram_set_bcr(sdram, 0, val, sdram->cfg & 0x80000000); break; case 0x44: /* SDRAM_B1CR */ sdram_set_bcr(sdram, 1, val, sdram->cfg & 0x80000000); break; case 0x48: /* SDRAM_B2CR */ sdram_set_bcr(sdram, 2, val, sdram->cfg & 0x80000000); break; case 0x4C: /* SDRAM_B3CR */ sdram_set_bcr(sdram, 3, val, sdram->cfg & 0x80000000); break; case 0x80: /* SDRAM_TR */ sdram->tr = val & 0x018FC01F; break; case 0x94: /* SDRAM_ECCCFG */ sdram->ecccfg = val & 0x00F00000; break; case 0x98: /* SDRAM_ECCESR */ val &= 0xFFF0F000; if (sdram->eccesr == 0 && val != 0) { qemu_irq_raise(sdram->irq); } else if (sdram->eccesr != 0 && val == 0) { qemu_irq_lower(sdram->irq); } sdram->eccesr = val; break; default: /* Error */ break; } break; } } static void sdram_reset(void *opaque) { ppc4xx_sdram_t *sdram; sdram = opaque; sdram->addr = 0x00000000; sdram->bear = 0x00000000; sdram->besr0 = 0x00000000; /* No error */ sdram->besr1 = 0x00000000; /* No error */ sdram->cfg = 0x00000000; sdram->ecccfg = 0x00000000; /* No ECC */ sdram->eccesr = 0x00000000; /* No error */ sdram->pmit = 0x07C00000; sdram->rtr = 0x05F00000; sdram->tr = 0x00854009; /* We pre-initialize RAM banks */ sdram->status = 0x00000000; sdram->cfg = 0x00800000; } void ppc4xx_sdram_init(CPUPPCState *env, qemu_irq irq, int nbanks, MemoryRegion *ram_memories, hwaddr *ram_bases, hwaddr *ram_sizes, int do_init) { ppc4xx_sdram_t *sdram; sdram = g_new0(ppc4xx_sdram_t, 1); sdram->irq = irq; sdram->nbanks = nbanks; sdram->ram_memories = ram_memories; memset(sdram->ram_bases, 0, 4 * sizeof(hwaddr)); memcpy(sdram->ram_bases, ram_bases, nbanks * sizeof(hwaddr)); memset(sdram->ram_sizes, 0, 4 * sizeof(hwaddr)); memcpy(sdram->ram_sizes, ram_sizes, nbanks * sizeof(hwaddr)); qemu_register_reset(&sdram_reset, sdram); ppc_dcr_register(env, SDRAM0_CFGADDR, sdram, &dcr_read_sdram, &dcr_write_sdram); ppc_dcr_register(env, SDRAM0_CFGDATA, sdram, &dcr_read_sdram, &dcr_write_sdram); if (do_init) { sdram_map_bcr(sdram); } } /* * Split RAM between SDRAM banks. * * sdram_bank_sizes[] must be in descending order, that is sizes[i] > sizes[i+1] * and must be 0-terminated. * * The 4xx SDRAM controller supports a small number of banks, and each bank * must be one of a small set of sizes. The number of banks and the supported * sizes varies by SoC. */ void ppc4xx_sdram_banks(MemoryRegion *ram, int nr_banks, MemoryRegion ram_memories[], hwaddr ram_bases[], hwaddr ram_sizes[], const ram_addr_t sdram_bank_sizes[]) { ram_addr_t size_left = memory_region_size(ram); ram_addr_t base = 0; ram_addr_t bank_size; int i; int j; for (i = 0; i < nr_banks; i++) { for (j = 0; sdram_bank_sizes[j] != 0; j++) { bank_size = sdram_bank_sizes[j]; if (bank_size <= size_left) { char name[32]; ram_bases[i] = base; ram_sizes[i] = bank_size; base += bank_size; size_left -= bank_size; snprintf(name, sizeof(name), "ppc4xx.sdram%d", i); memory_region_init_alias(&ram_memories[i], NULL, name, ram, ram_bases[i], ram_sizes[i]); break; } } if (!size_left) { /* No need to use the remaining banks. */ break; } } if (size_left) { ram_addr_t used_size = memory_region_size(ram) - size_left; GString *s = g_string_new(NULL); for (i = 0; sdram_bank_sizes[i]; i++) { g_string_append_printf(s, "%" PRIi64 "%s", sdram_bank_sizes[i] / MiB, sdram_bank_sizes[i + 1] ? ", " : ""); } error_report("at most %d bank%s of %s MiB each supported", nr_banks, nr_banks == 1 ? "" : "s", s->str); error_printf("Possible valid RAM size: %" PRIi64 " MiB\n", used_size ? used_size / MiB : sdram_bank_sizes[i - 1] / MiB); g_string_free(s, true); exit(EXIT_FAILURE); } } /*****************************************************************************/ /* MAL */ enum { MAL0_CFG = 0x180, MAL0_ESR = 0x181, MAL0_IER = 0x182, MAL0_TXCASR = 0x184, MAL0_TXCARR = 0x185, MAL0_TXEOBISR = 0x186, MAL0_TXDEIR = 0x187, MAL0_RXCASR = 0x190, MAL0_RXCARR = 0x191, MAL0_RXEOBISR = 0x192, MAL0_RXDEIR = 0x193, MAL0_TXCTP0R = 0x1A0, MAL0_RXCTP0R = 0x1C0, MAL0_RCBS0 = 0x1E0, MAL0_RCBS1 = 0x1E1, }; static void ppc4xx_mal_reset(DeviceState *dev) { Ppc4xxMalState *mal = PPC4xx_MAL(dev); mal->cfg = 0x0007C000; mal->esr = 0x00000000; mal->ier = 0x00000000; mal->rxcasr = 0x00000000; mal->rxdeir = 0x00000000; mal->rxeobisr = 0x00000000; mal->txcasr = 0x00000000; mal->txdeir = 0x00000000; mal->txeobisr = 0x00000000; } static uint32_t dcr_read_mal(void *opaque, int dcrn) { Ppc4xxMalState *mal = opaque; uint32_t ret; switch (dcrn) { case MAL0_CFG: ret = mal->cfg; break; case MAL0_ESR: ret = mal->esr; break; case MAL0_IER: ret = mal->ier; break; case MAL0_TXCASR: ret = mal->txcasr; break; case MAL0_TXCARR: ret = mal->txcarr; break; case MAL0_TXEOBISR: ret = mal->txeobisr; break; case MAL0_TXDEIR: ret = mal->txdeir; break; case MAL0_RXCASR: ret = mal->rxcasr; break; case MAL0_RXCARR: ret = mal->rxcarr; break; case MAL0_RXEOBISR: ret = mal->rxeobisr; break; case MAL0_RXDEIR: ret = mal->rxdeir; break; default: ret = 0; break; } if (dcrn >= MAL0_TXCTP0R && dcrn < MAL0_TXCTP0R + mal->txcnum) { ret = mal->txctpr[dcrn - MAL0_TXCTP0R]; } if (dcrn >= MAL0_RXCTP0R && dcrn < MAL0_RXCTP0R + mal->rxcnum) { ret = mal->rxctpr[dcrn - MAL0_RXCTP0R]; } if (dcrn >= MAL0_RCBS0 && dcrn < MAL0_RCBS0 + mal->rxcnum) { ret = mal->rcbs[dcrn - MAL0_RCBS0]; } return ret; } static void dcr_write_mal(void *opaque, int dcrn, uint32_t val) { Ppc4xxMalState *mal = opaque; switch (dcrn) { case MAL0_CFG: if (val & 0x80000000) { ppc4xx_mal_reset(DEVICE(mal)); } mal->cfg = val & 0x00FFC087; break; case MAL0_ESR: /* Read/clear */ mal->esr &= ~val; break; case MAL0_IER: mal->ier = val & 0x0000001F; break; case MAL0_TXCASR: mal->txcasr = val & 0xF0000000; break; case MAL0_TXCARR: mal->txcarr = val & 0xF0000000; break; case MAL0_TXEOBISR: /* Read/clear */ mal->txeobisr &= ~val; break; case MAL0_TXDEIR: /* Read/clear */ mal->txdeir &= ~val; break; case MAL0_RXCASR: mal->rxcasr = val & 0xC0000000; break; case MAL0_RXCARR: mal->rxcarr = val & 0xC0000000; break; case MAL0_RXEOBISR: /* Read/clear */ mal->rxeobisr &= ~val; break; case MAL0_RXDEIR: /* Read/clear */ mal->rxdeir &= ~val; break; } if (dcrn >= MAL0_TXCTP0R && dcrn < MAL0_TXCTP0R + mal->txcnum) { mal->txctpr[dcrn - MAL0_TXCTP0R] = val; } if (dcrn >= MAL0_RXCTP0R && dcrn < MAL0_RXCTP0R + mal->rxcnum) { mal->rxctpr[dcrn - MAL0_RXCTP0R] = val; } if (dcrn >= MAL0_RCBS0 && dcrn < MAL0_RCBS0 + mal->rxcnum) { mal->rcbs[dcrn - MAL0_RCBS0] = val & 0x000000FF; } } static void ppc4xx_mal_realize(DeviceState *dev, Error **errp) { Ppc4xxMalState *mal = PPC4xx_MAL(dev); Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); int i; if (mal->txcnum > 32 || mal->rxcnum > 32) { error_setg(errp, "invalid TXC/RXC number"); return; } mal->txctpr = g_new0(uint32_t, mal->txcnum); mal->rxctpr = g_new0(uint32_t, mal->rxcnum); mal->rcbs = g_new0(uint32_t, mal->rxcnum); for (i = 0; i < ARRAY_SIZE(mal->irqs); i++) { sysbus_init_irq(SYS_BUS_DEVICE(dev), &mal->irqs[i]); } ppc4xx_dcr_register(dcr, MAL0_CFG, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_ESR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_IER, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_TXCASR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_TXCARR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_TXEOBISR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_TXDEIR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_RXCASR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_RXCARR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_RXEOBISR, mal, &dcr_read_mal, &dcr_write_mal); ppc4xx_dcr_register(dcr, MAL0_RXDEIR, mal, &dcr_read_mal, &dcr_write_mal); for (i = 0; i < mal->txcnum; i++) { ppc4xx_dcr_register(dcr, MAL0_TXCTP0R + i, mal, &dcr_read_mal, &dcr_write_mal); } for (i = 0; i < mal->rxcnum; i++) { ppc4xx_dcr_register(dcr, MAL0_RXCTP0R + i, mal, &dcr_read_mal, &dcr_write_mal); } for (i = 0; i < mal->rxcnum; i++) { ppc4xx_dcr_register(dcr, MAL0_RCBS0 + i, mal, &dcr_read_mal, &dcr_write_mal); } } static void ppc4xx_mal_finalize(Object *obj) { Ppc4xxMalState *mal = PPC4xx_MAL(obj); g_free(mal->rcbs); g_free(mal->rxctpr); g_free(mal->txctpr); } static Property ppc4xx_mal_properties[] = { DEFINE_PROP_UINT8("txc-num", Ppc4xxMalState, txcnum, 0), DEFINE_PROP_UINT8("rxc-num", Ppc4xxMalState, rxcnum, 0), DEFINE_PROP_END_OF_LIST(), }; static void ppc4xx_mal_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc4xx_mal_realize; dc->reset = ppc4xx_mal_reset; /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; device_class_set_props(dc, ppc4xx_mal_properties); } /*****************************************************************************/ /* Peripheral local bus arbitrer */ enum { PLB3A0_ACR = 0x077, PLB4A0_ACR = 0x081, PLB0_BESR = 0x084, PLB0_BEAR = 0x086, PLB0_ACR = 0x087, PLB4A1_ACR = 0x089, }; static uint32_t dcr_read_plb(void *opaque, int dcrn) { Ppc4xxPlbState *plb = opaque; uint32_t ret; switch (dcrn) { case PLB0_ACR: ret = plb->acr; break; case PLB0_BEAR: ret = plb->bear; break; case PLB0_BESR: ret = plb->besr; break; default: /* Avoid gcc warning */ ret = 0; break; } return ret; } static void dcr_write_plb(void *opaque, int dcrn, uint32_t val) { Ppc4xxPlbState *plb = opaque; switch (dcrn) { case PLB0_ACR: /* * We don't care about the actual parameters written as * we don't manage any priorities on the bus */ plb->acr = val & 0xF8000000; break; case PLB0_BEAR: /* Read only */ break; case PLB0_BESR: /* Write-clear */ plb->besr &= ~val; break; } } static void ppc405_plb_reset(DeviceState *dev) { Ppc4xxPlbState *plb = PPC4xx_PLB(dev); plb->acr = 0x00000000; plb->bear = 0x00000000; plb->besr = 0x00000000; } static void ppc405_plb_realize(DeviceState *dev, Error **errp) { Ppc4xxPlbState *plb = PPC4xx_PLB(dev); Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); ppc4xx_dcr_register(dcr, PLB3A0_ACR, plb, &dcr_read_plb, &dcr_write_plb); ppc4xx_dcr_register(dcr, PLB4A0_ACR, plb, &dcr_read_plb, &dcr_write_plb); ppc4xx_dcr_register(dcr, PLB0_ACR, plb, &dcr_read_plb, &dcr_write_plb); ppc4xx_dcr_register(dcr, PLB0_BEAR, plb, &dcr_read_plb, &dcr_write_plb); ppc4xx_dcr_register(dcr, PLB0_BESR, plb, &dcr_read_plb, &dcr_write_plb); ppc4xx_dcr_register(dcr, PLB4A1_ACR, plb, &dcr_read_plb, &dcr_write_plb); } static void ppc405_plb_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_plb_realize; dc->reset = ppc405_plb_reset; /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /*****************************************************************************/ /* Peripheral controller */ enum { EBC0_CFGADDR = 0x012, EBC0_CFGDATA = 0x013, }; static uint32_t dcr_read_ebc(void *opaque, int dcrn) { Ppc4xxEbcState *ebc = opaque; uint32_t ret; switch (dcrn) { case EBC0_CFGADDR: ret = ebc->addr; break; case EBC0_CFGDATA: switch (ebc->addr) { case 0x00: /* B0CR */ ret = ebc->bcr[0]; break; case 0x01: /* B1CR */ ret = ebc->bcr[1]; break; case 0x02: /* B2CR */ ret = ebc->bcr[2]; break; case 0x03: /* B3CR */ ret = ebc->bcr[3]; break; case 0x04: /* B4CR */ ret = ebc->bcr[4]; break; case 0x05: /* B5CR */ ret = ebc->bcr[5]; break; case 0x06: /* B6CR */ ret = ebc->bcr[6]; break; case 0x07: /* B7CR */ ret = ebc->bcr[7]; break; case 0x10: /* B0AP */ ret = ebc->bap[0]; break; case 0x11: /* B1AP */ ret = ebc->bap[1]; break; case 0x12: /* B2AP */ ret = ebc->bap[2]; break; case 0x13: /* B3AP */ ret = ebc->bap[3]; break; case 0x14: /* B4AP */ ret = ebc->bap[4]; break; case 0x15: /* B5AP */ ret = ebc->bap[5]; break; case 0x16: /* B6AP */ ret = ebc->bap[6]; break; case 0x17: /* B7AP */ ret = ebc->bap[7]; break; case 0x20: /* BEAR */ ret = ebc->bear; break; case 0x21: /* BESR0 */ ret = ebc->besr0; break; case 0x22: /* BESR1 */ ret = ebc->besr1; break; case 0x23: /* CFG */ ret = ebc->cfg; break; default: ret = 0x00000000; break; } break; default: ret = 0x00000000; break; } return ret; } static void dcr_write_ebc(void *opaque, int dcrn, uint32_t val) { Ppc4xxEbcState *ebc = opaque; switch (dcrn) { case EBC0_CFGADDR: ebc->addr = val; break; case EBC0_CFGDATA: switch (ebc->addr) { case 0x00: /* B0CR */ break; case 0x01: /* B1CR */ break; case 0x02: /* B2CR */ break; case 0x03: /* B3CR */ break; case 0x04: /* B4CR */ break; case 0x05: /* B5CR */ break; case 0x06: /* B6CR */ break; case 0x07: /* B7CR */ break; case 0x10: /* B0AP */ break; case 0x11: /* B1AP */ break; case 0x12: /* B2AP */ break; case 0x13: /* B3AP */ break; case 0x14: /* B4AP */ break; case 0x15: /* B5AP */ break; case 0x16: /* B6AP */ break; case 0x17: /* B7AP */ break; case 0x20: /* BEAR */ break; case 0x21: /* BESR0 */ break; case 0x22: /* BESR1 */ break; case 0x23: /* CFG */ break; default: break; } break; default: break; } } static void ppc405_ebc_reset(DeviceState *dev) { Ppc4xxEbcState *ebc = PPC4xx_EBC(dev); int i; ebc->addr = 0x00000000; ebc->bap[0] = 0x7F8FFE80; ebc->bcr[0] = 0xFFE28000; for (i = 0; i < 8; i++) { ebc->bap[i] = 0x00000000; ebc->bcr[i] = 0x00000000; } ebc->besr0 = 0x00000000; ebc->besr1 = 0x00000000; ebc->cfg = 0x80400000; } static void ppc405_ebc_realize(DeviceState *dev, Error **errp) { Ppc4xxEbcState *ebc = PPC4xx_EBC(dev); Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); ppc4xx_dcr_register(dcr, EBC0_CFGADDR, ebc, &dcr_read_ebc, &dcr_write_ebc); ppc4xx_dcr_register(dcr, EBC0_CFGDATA, ebc, &dcr_read_ebc, &dcr_write_ebc); } static void ppc405_ebc_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_ebc_realize; dc->reset = ppc405_ebc_reset; /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /* PPC4xx_DCR_DEVICE */ void ppc4xx_dcr_register(Ppc4xxDcrDeviceState *dev, int dcrn, void *opaque, dcr_read_cb dcr_read, dcr_write_cb dcr_write) { assert(dev->cpu); ppc_dcr_register(&dev->cpu->env, dcrn, opaque, dcr_read, dcr_write); } bool ppc4xx_dcr_realize(Ppc4xxDcrDeviceState *dev, PowerPCCPU *cpu, Error **errp) { object_property_set_link(OBJECT(dev), "cpu", OBJECT(cpu), &error_abort); return sysbus_realize(SYS_BUS_DEVICE(dev), errp); } static Property ppc4xx_dcr_properties[] = { DEFINE_PROP_LINK("cpu", Ppc4xxDcrDeviceState, cpu, TYPE_POWERPC_CPU, PowerPCCPU *), DEFINE_PROP_END_OF_LIST(), }; static void ppc4xx_dcr_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); device_class_set_props(dc, ppc4xx_dcr_properties); } static const TypeInfo ppc4xx_types[] = { { .name = TYPE_PPC4xx_MAL, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc4xxMalState), .instance_finalize = ppc4xx_mal_finalize, .class_init = ppc4xx_mal_class_init, }, { .name = TYPE_PPC4xx_PLB, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc4xxPlbState), .class_init = ppc405_plb_class_init, }, { .name = TYPE_PPC4xx_EBC, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc4xxEbcState), .class_init = ppc405_ebc_class_init, }, { .name = TYPE_PPC4xx_DCR_DEVICE, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(Ppc4xxDcrDeviceState), .class_init = ppc4xx_dcr_class_init, .abstract = true, } }; DEFINE_TYPES(ppc4xx_types)