/* * QEMU PowerPC 405 embedded processors 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 "qapi/error.h" #include "qemu/log.h" #include "cpu.h" #include "hw/ppc/ppc.h" #include "hw/i2c/ppc4xx_i2c.h" #include "hw/irq.h" #include "hw/qdev-properties.h" #include "ppc405.h" #include "hw/char/serial-mm.h" #include "qemu/timer.h" #include "sysemu/reset.h" #include "sysemu/sysemu.h" #include "exec/address-spaces.h" #include "hw/intc/ppc-uic.h" #include "trace.h" /*****************************************************************************/ /* Shared peripherals */ /*****************************************************************************/ /* PLB to OPB bridge */ enum { POB0_BESR0 = 0x0A0, POB0_BESR1 = 0x0A2, POB0_BEAR = 0x0A4, }; static uint32_t dcr_read_pob(void *opaque, int dcrn) { Ppc405PobState *pob = opaque; uint32_t ret; switch (dcrn) { case POB0_BEAR: ret = pob->bear; break; case POB0_BESR0: ret = pob->besr0; break; case POB0_BESR1: ret = pob->besr1; break; default: /* Avoid gcc warning */ ret = 0; break; } return ret; } static void dcr_write_pob(void *opaque, int dcrn, uint32_t val) { Ppc405PobState *pob = opaque; switch (dcrn) { case POB0_BEAR: /* Read only */ break; case POB0_BESR0: /* Write-clear */ pob->besr0 &= ~val; break; case POB0_BESR1: /* Write-clear */ pob->besr1 &= ~val; break; } } static void ppc405_pob_reset(DeviceState *dev) { Ppc405PobState *pob = PPC405_POB(dev); /* No error */ pob->bear = 0x00000000; pob->besr0 = 0x0000000; pob->besr1 = 0x0000000; } static void ppc405_pob_realize(DeviceState *dev, Error **errp) { Ppc405PobState *pob = PPC405_POB(dev); Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); ppc4xx_dcr_register(dcr, POB0_BEAR, pob, &dcr_read_pob, &dcr_write_pob); ppc4xx_dcr_register(dcr, POB0_BESR0, pob, &dcr_read_pob, &dcr_write_pob); ppc4xx_dcr_register(dcr, POB0_BESR1, pob, &dcr_read_pob, &dcr_write_pob); } static void ppc405_pob_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_pob_realize; device_class_set_legacy_reset(dc, ppc405_pob_reset); /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /*****************************************************************************/ /* OPB arbitrer */ static uint64_t opba_readb(void *opaque, hwaddr addr, unsigned size) { Ppc405OpbaState *opba = opaque; uint32_t ret; switch (addr) { case 0x00: ret = opba->cr; break; case 0x01: ret = opba->pr; break; default: ret = 0x00; break; } trace_opba_readb(addr, ret); return ret; } static void opba_writeb(void *opaque, hwaddr addr, uint64_t value, unsigned size) { Ppc405OpbaState *opba = opaque; trace_opba_writeb(addr, value); switch (addr) { case 0x00: opba->cr = value & 0xF8; break; case 0x01: opba->pr = value & 0xFF; break; default: break; } } static const MemoryRegionOps opba_ops = { .read = opba_readb, .write = opba_writeb, .impl.min_access_size = 1, .impl.max_access_size = 1, .valid.min_access_size = 1, .valid.max_access_size = 4, .endianness = DEVICE_BIG_ENDIAN, }; static void ppc405_opba_reset(DeviceState *dev) { Ppc405OpbaState *opba = PPC405_OPBA(dev); opba->cr = 0x00; /* No dynamic priorities - park disabled */ opba->pr = 0x11; } static void ppc405_opba_realize(DeviceState *dev, Error **errp) { Ppc405OpbaState *s = PPC405_OPBA(dev); memory_region_init_io(&s->io, OBJECT(s), &opba_ops, s, "opba", 2); sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->io); } static void ppc405_opba_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_opba_realize; device_class_set_legacy_reset(dc, ppc405_opba_reset); /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /*****************************************************************************/ /* Code decompression controller */ /* XXX: TODO */ /*****************************************************************************/ /* DMA controller */ enum { DMA0_CR0 = 0x100, DMA0_CT0 = 0x101, DMA0_DA0 = 0x102, DMA0_SA0 = 0x103, DMA0_SG0 = 0x104, DMA0_CR1 = 0x108, DMA0_CT1 = 0x109, DMA0_DA1 = 0x10A, DMA0_SA1 = 0x10B, DMA0_SG1 = 0x10C, DMA0_CR2 = 0x110, DMA0_CT2 = 0x111, DMA0_DA2 = 0x112, DMA0_SA2 = 0x113, DMA0_SG2 = 0x114, DMA0_CR3 = 0x118, DMA0_CT3 = 0x119, DMA0_DA3 = 0x11A, DMA0_SA3 = 0x11B, DMA0_SG3 = 0x11C, DMA0_SR = 0x120, DMA0_SGC = 0x123, DMA0_SLP = 0x125, DMA0_POL = 0x126, }; static uint32_t dcr_read_dma(void *opaque, int dcrn) { return 0; } static void dcr_write_dma(void *opaque, int dcrn, uint32_t val) { } static void ppc405_dma_reset(DeviceState *dev) { Ppc405DmaState *dma = PPC405_DMA(dev); int i; for (i = 0; i < 4; i++) { dma->cr[i] = 0x00000000; dma->ct[i] = 0x00000000; dma->da[i] = 0x00000000; dma->sa[i] = 0x00000000; dma->sg[i] = 0x00000000; } dma->sr = 0x00000000; dma->sgc = 0x00000000; dma->slp = 0x7C000000; dma->pol = 0x00000000; } static void ppc405_dma_realize(DeviceState *dev, Error **errp) { Ppc405DmaState *dma = PPC405_DMA(dev); Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); int i; for (i = 0; i < ARRAY_SIZE(dma->irqs); i++) { sysbus_init_irq(SYS_BUS_DEVICE(dma), &dma->irqs[i]); } ppc4xx_dcr_register(dcr, DMA0_CR0, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_CT0, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_DA0, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SA0, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SG0, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_CR1, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_CT1, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_DA1, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SA1, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SG1, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_CR2, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_CT2, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_DA2, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SA2, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SG2, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_CR3, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_CT3, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_DA3, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SA3, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SG3, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SR, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SGC, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_SLP, dma, &dcr_read_dma, &dcr_write_dma); ppc4xx_dcr_register(dcr, DMA0_POL, dma, &dcr_read_dma, &dcr_write_dma); } static void ppc405_dma_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_dma_realize; device_class_set_legacy_reset(dc, ppc405_dma_reset); /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /*****************************************************************************/ /* GPIO */ static uint64_t ppc405_gpio_read(void *opaque, hwaddr addr, unsigned size) { trace_ppc405_gpio_read(addr, size); return 0; } static void ppc405_gpio_write(void *opaque, hwaddr addr, uint64_t value, unsigned size) { trace_ppc405_gpio_write(addr, size, value); } static const MemoryRegionOps ppc405_gpio_ops = { .read = ppc405_gpio_read, .write = ppc405_gpio_write, .endianness = DEVICE_NATIVE_ENDIAN, }; static void ppc405_gpio_realize(DeviceState *dev, Error **errp) { Ppc405GpioState *s = PPC405_GPIO(dev); memory_region_init_io(&s->io, OBJECT(s), &ppc405_gpio_ops, s, "gpio", 0x38); sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->io); } static void ppc405_gpio_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_gpio_realize; /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /*****************************************************************************/ /* On Chip Memory */ enum { OCM0_ISARC = 0x018, OCM0_ISACNTL = 0x019, OCM0_DSARC = 0x01A, OCM0_DSACNTL = 0x01B, }; static void ocm_update_mappings(Ppc405OcmState *ocm, uint32_t isarc, uint32_t isacntl, uint32_t dsarc, uint32_t dsacntl) { trace_ocm_update_mappings(isarc, isacntl, dsarc, dsacntl, ocm->isarc, ocm->isacntl, ocm->dsarc, ocm->dsacntl); if (ocm->isarc != isarc || (ocm->isacntl & 0x80000000) != (isacntl & 0x80000000)) { if (ocm->isacntl & 0x80000000) { /* Unmap previously assigned memory region */ trace_ocm_unmap("ISA", ocm->isarc); memory_region_del_subregion(get_system_memory(), &ocm->isarc_ram); } if (isacntl & 0x80000000) { /* Map new instruction memory region */ trace_ocm_map("ISA", isarc); memory_region_add_subregion(get_system_memory(), isarc, &ocm->isarc_ram); } } if (ocm->dsarc != dsarc || (ocm->dsacntl & 0x80000000) != (dsacntl & 0x80000000)) { if (ocm->dsacntl & 0x80000000) { /* Beware not to unmap the region we just mapped */ if (!(isacntl & 0x80000000) || ocm->dsarc != isarc) { /* Unmap previously assigned memory region */ trace_ocm_unmap("DSA", ocm->dsarc); memory_region_del_subregion(get_system_memory(), &ocm->dsarc_ram); } } if (dsacntl & 0x80000000) { /* Beware not to remap the region we just mapped */ if (!(isacntl & 0x80000000) || dsarc != isarc) { /* Map new data memory region */ trace_ocm_map("DSA", dsarc); memory_region_add_subregion(get_system_memory(), dsarc, &ocm->dsarc_ram); } } } } static uint32_t dcr_read_ocm(void *opaque, int dcrn) { Ppc405OcmState *ocm = opaque; uint32_t ret; switch (dcrn) { case OCM0_ISARC: ret = ocm->isarc; break; case OCM0_ISACNTL: ret = ocm->isacntl; break; case OCM0_DSARC: ret = ocm->dsarc; break; case OCM0_DSACNTL: ret = ocm->dsacntl; break; default: ret = 0; break; } return ret; } static void dcr_write_ocm(void *opaque, int dcrn, uint32_t val) { Ppc405OcmState *ocm = opaque; uint32_t isarc, dsarc, isacntl, dsacntl; isarc = ocm->isarc; dsarc = ocm->dsarc; isacntl = ocm->isacntl; dsacntl = ocm->dsacntl; switch (dcrn) { case OCM0_ISARC: isarc = val & 0xFC000000; break; case OCM0_ISACNTL: isacntl = val & 0xC0000000; break; case OCM0_DSARC: isarc = val & 0xFC000000; break; case OCM0_DSACNTL: isacntl = val & 0xC0000000; break; } ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl); ocm->isarc = isarc; ocm->dsarc = dsarc; ocm->isacntl = isacntl; ocm->dsacntl = dsacntl; } static void ppc405_ocm_reset(DeviceState *dev) { Ppc405OcmState *ocm = PPC405_OCM(dev); uint32_t isarc, dsarc, isacntl, dsacntl; isarc = 0x00000000; isacntl = 0x00000000; dsarc = 0x00000000; dsacntl = 0x00000000; ocm_update_mappings(ocm, isarc, isacntl, dsarc, dsacntl); ocm->isarc = isarc; ocm->dsarc = dsarc; ocm->isacntl = isacntl; ocm->dsacntl = dsacntl; } static void ppc405_ocm_realize(DeviceState *dev, Error **errp) { Ppc405OcmState *ocm = PPC405_OCM(dev); Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); /* XXX: Size is 4096 or 0x04000000 */ memory_region_init_ram(&ocm->isarc_ram, OBJECT(ocm), "ppc405.ocm", 4 * KiB, &error_fatal); memory_region_init_alias(&ocm->dsarc_ram, OBJECT(ocm), "ppc405.dsarc", &ocm->isarc_ram, 0, 4 * KiB); ppc4xx_dcr_register(dcr, OCM0_ISARC, ocm, &dcr_read_ocm, &dcr_write_ocm); ppc4xx_dcr_register(dcr, OCM0_ISACNTL, ocm, &dcr_read_ocm, &dcr_write_ocm); ppc4xx_dcr_register(dcr, OCM0_DSARC, ocm, &dcr_read_ocm, &dcr_write_ocm); ppc4xx_dcr_register(dcr, OCM0_DSACNTL, ocm, &dcr_read_ocm, &dcr_write_ocm); } static void ppc405_ocm_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_ocm_realize; device_class_set_legacy_reset(dc, ppc405_ocm_reset); /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /*****************************************************************************/ /* General purpose timers */ static int ppc4xx_gpt_compare(Ppc405GptState *gpt, int n) { /* XXX: TODO */ return 0; } static void ppc4xx_gpt_set_output(Ppc405GptState *gpt, int n, int level) { /* XXX: TODO */ } static void ppc4xx_gpt_set_outputs(Ppc405GptState *gpt) { uint32_t mask; int i; mask = 0x80000000; for (i = 0; i < 5; i++) { if (gpt->oe & mask) { /* Output is enabled */ if (ppc4xx_gpt_compare(gpt, i)) { /* Comparison is OK */ ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask); } else { /* Comparison is KO */ ppc4xx_gpt_set_output(gpt, i, gpt->ol & mask ? 0 : 1); } } mask = mask >> 1; } } static void ppc4xx_gpt_set_irqs(Ppc405GptState *gpt) { uint32_t mask; int i; mask = 0x00008000; for (i = 0; i < 5; i++) { if (gpt->is & gpt->im & mask) { qemu_irq_raise(gpt->irqs[i]); } else { qemu_irq_lower(gpt->irqs[i]); } mask = mask >> 1; } } static void ppc4xx_gpt_compute_timer(Ppc405GptState *gpt) { /* XXX: TODO */ } static uint64_t ppc4xx_gpt_read(void *opaque, hwaddr addr, unsigned size) { Ppc405GptState *gpt = opaque; uint32_t ret; int idx; trace_ppc4xx_gpt_read(addr, size); switch (addr) { case 0x00: /* Time base counter */ ret = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + gpt->tb_offset, gpt->tb_freq, NANOSECONDS_PER_SECOND); break; case 0x10: /* Output enable */ ret = gpt->oe; break; case 0x14: /* Output level */ ret = gpt->ol; break; case 0x18: /* Interrupt mask */ ret = gpt->im; break; case 0x1C: case 0x20: /* Interrupt status */ ret = gpt->is; break; case 0x24: /* Interrupt enable */ ret = gpt->ie; break; case 0x80 ... 0x90: /* Compare timer */ idx = (addr - 0x80) >> 2; ret = gpt->comp[idx]; break; case 0xC0 ... 0xD0: /* Compare mask */ idx = (addr - 0xC0) >> 2; ret = gpt->mask[idx]; break; default: ret = -1; break; } return ret; } static void ppc4xx_gpt_write(void *opaque, hwaddr addr, uint64_t value, unsigned size) { Ppc405GptState *gpt = opaque; int idx; trace_ppc4xx_gpt_write(addr, size, value); switch (addr) { case 0x00: /* Time base counter */ gpt->tb_offset = muldiv64(value, NANOSECONDS_PER_SECOND, gpt->tb_freq) - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); ppc4xx_gpt_compute_timer(gpt); break; case 0x10: /* Output enable */ gpt->oe = value & 0xF8000000; ppc4xx_gpt_set_outputs(gpt); break; case 0x14: /* Output level */ gpt->ol = value & 0xF8000000; ppc4xx_gpt_set_outputs(gpt); break; case 0x18: /* Interrupt mask */ gpt->im = value & 0x0000F800; break; case 0x1C: /* Interrupt status set */ gpt->is |= value & 0x0000F800; ppc4xx_gpt_set_irqs(gpt); break; case 0x20: /* Interrupt status clear */ gpt->is &= ~(value & 0x0000F800); ppc4xx_gpt_set_irqs(gpt); break; case 0x24: /* Interrupt enable */ gpt->ie = value & 0x0000F800; ppc4xx_gpt_set_irqs(gpt); break; case 0x80 ... 0x90: /* Compare timer */ idx = (addr - 0x80) >> 2; gpt->comp[idx] = value & 0xF8000000; ppc4xx_gpt_compute_timer(gpt); break; case 0xC0 ... 0xD0: /* Compare mask */ idx = (addr - 0xC0) >> 2; gpt->mask[idx] = value & 0xF8000000; ppc4xx_gpt_compute_timer(gpt); break; } } static const MemoryRegionOps gpt_ops = { .read = ppc4xx_gpt_read, .write = ppc4xx_gpt_write, .valid.min_access_size = 4, .valid.max_access_size = 4, .endianness = DEVICE_NATIVE_ENDIAN, }; static void ppc4xx_gpt_cb(void *opaque) { Ppc405GptState *gpt = opaque; ppc4xx_gpt_set_irqs(gpt); ppc4xx_gpt_set_outputs(gpt); ppc4xx_gpt_compute_timer(gpt); } static void ppc405_gpt_reset(DeviceState *dev) { Ppc405GptState *gpt = PPC405_GPT(dev); int i; timer_del(gpt->timer); gpt->oe = 0x00000000; gpt->ol = 0x00000000; gpt->im = 0x00000000; gpt->is = 0x00000000; gpt->ie = 0x00000000; for (i = 0; i < 5; i++) { gpt->comp[i] = 0x00000000; gpt->mask[i] = 0x00000000; } } static void ppc405_gpt_realize(DeviceState *dev, Error **errp) { Ppc405GptState *s = PPC405_GPT(dev); SysBusDevice *sbd = SYS_BUS_DEVICE(dev); int i; s->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &ppc4xx_gpt_cb, s); memory_region_init_io(&s->iomem, OBJECT(s), &gpt_ops, s, "gpt", 0xd4); sysbus_init_mmio(sbd, &s->iomem); for (i = 0; i < ARRAY_SIZE(s->irqs); i++) { sysbus_init_irq(sbd, &s->irqs[i]); } } static void ppc405_gpt_finalize(Object *obj) { /* timer will be NULL if the GPT wasn't realized */ if (PPC405_GPT(obj)->timer) { timer_del(PPC405_GPT(obj)->timer); } } static void ppc405_gpt_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_gpt_realize; device_class_set_legacy_reset(dc, ppc405_gpt_reset); /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; } /*****************************************************************************/ /* PowerPC 405EP */ /* CPU control */ enum { PPC405EP_CPC0_PLLMR0 = 0x0F0, PPC405EP_CPC0_BOOT = 0x0F1, PPC405EP_CPC0_EPCTL = 0x0F3, PPC405EP_CPC0_PLLMR1 = 0x0F4, PPC405EP_CPC0_UCR = 0x0F5, PPC405EP_CPC0_SRR = 0x0F6, PPC405EP_CPC0_JTAGID = 0x0F7, PPC405EP_CPC0_PCI = 0x0F9, #if 0 PPC405EP_CPC0_ER = xxx, PPC405EP_CPC0_FR = xxx, PPC405EP_CPC0_SR = xxx, #endif }; static void ppc405ep_compute_clocks(Ppc405CpcState *cpc) { uint32_t CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk; uint32_t UART0_clk, UART1_clk; uint64_t VCO_out, PLL_out; int M, D; VCO_out = 0; if ((cpc->pllmr[1] & 0x80000000) && !(cpc->pllmr[1] & 0x40000000)) { M = (((cpc->pllmr[1] >> 20) - 1) & 0xF) + 1; /* FBMUL */ trace_ppc405ep_clocks_compute("FBMUL", (cpc->pllmr[1] >> 20) & 0xF, M); D = 8 - ((cpc->pllmr[1] >> 16) & 0x7); /* FWDA */ trace_ppc405ep_clocks_compute("FWDA", (cpc->pllmr[1] >> 16) & 0x7, D); VCO_out = (uint64_t)cpc->sysclk * M * D; if (VCO_out < 500000000UL || VCO_out > 1000000000UL) { /* Error - unlock the PLL */ qemu_log_mask(LOG_GUEST_ERROR, "VCO out of range %" PRIu64 "\n", VCO_out); #if 0 cpc->pllmr[1] &= ~0x80000000; goto pll_bypass; #endif } PLL_out = VCO_out / D; /* Pretend the PLL is locked */ cpc->boot |= 0x00000001; } else { #if 0 pll_bypass: #endif PLL_out = cpc->sysclk; if (cpc->pllmr[1] & 0x40000000) { /* Pretend the PLL is not locked */ cpc->boot &= ~0x00000001; } } /* Now, compute all other clocks */ D = ((cpc->pllmr[0] >> 20) & 0x3) + 1; /* CCDV */ trace_ppc405ep_clocks_compute("CCDV", (cpc->pllmr[0] >> 20) & 0x3, D); CPU_clk = PLL_out / D; D = ((cpc->pllmr[0] >> 16) & 0x3) + 1; /* CBDV */ trace_ppc405ep_clocks_compute("CBDV", (cpc->pllmr[0] >> 16) & 0x3, D); PLB_clk = CPU_clk / D; D = ((cpc->pllmr[0] >> 12) & 0x3) + 1; /* OPDV */ trace_ppc405ep_clocks_compute("OPDV", (cpc->pllmr[0] >> 12) & 0x3, D); OPB_clk = PLB_clk / D; D = ((cpc->pllmr[0] >> 8) & 0x3) + 2; /* EPDV */ trace_ppc405ep_clocks_compute("EPDV", (cpc->pllmr[0] >> 8) & 0x3, D); EBC_clk = PLB_clk / D; D = ((cpc->pllmr[0] >> 4) & 0x3) + 1; /* MPDV */ trace_ppc405ep_clocks_compute("MPDV", (cpc->pllmr[0] >> 4) & 0x3, D); MAL_clk = PLB_clk / D; D = (cpc->pllmr[0] & 0x3) + 1; /* PPDV */ trace_ppc405ep_clocks_compute("PPDV", cpc->pllmr[0] & 0x3, D); PCI_clk = PLB_clk / D; D = ((cpc->ucr - 1) & 0x7F) + 1; /* U0DIV */ trace_ppc405ep_clocks_compute("U0DIV", cpc->ucr & 0x7F, D); UART0_clk = PLL_out / D; D = (((cpc->ucr >> 8) - 1) & 0x7F) + 1; /* U1DIV */ trace_ppc405ep_clocks_compute("U1DIV", (cpc->ucr >> 8) & 0x7F, D); UART1_clk = PLL_out / D; if (trace_event_get_state_backends(TRACE_PPC405EP_CLOCKS_SETUP)) { g_autofree char *trace = g_strdup_printf( "Setup PPC405EP clocks - sysclk %" PRIu32 " VCO %" PRIu64 " PLL out %" PRIu64 " Hz\n" "CPU %" PRIu32 " PLB %" PRIu32 " OPB %" PRIu32 " EBC %" PRIu32 " MAL %" PRIu32 " PCI %" PRIu32 " UART0 %" PRIu32 " UART1 %" PRIu32 "\n", cpc->sysclk, VCO_out, PLL_out, CPU_clk, PLB_clk, OPB_clk, EBC_clk, MAL_clk, PCI_clk, UART0_clk, UART1_clk); trace_ppc405ep_clocks_setup(trace); } /* Setup CPU clocks */ clk_setup(&cpc->clk_setup[PPC405EP_CPU_CLK], CPU_clk); /* Setup PLB clock */ clk_setup(&cpc->clk_setup[PPC405EP_PLB_CLK], PLB_clk); /* Setup OPB clock */ clk_setup(&cpc->clk_setup[PPC405EP_OPB_CLK], OPB_clk); /* Setup external clock */ clk_setup(&cpc->clk_setup[PPC405EP_EBC_CLK], EBC_clk); /* Setup MAL clock */ clk_setup(&cpc->clk_setup[PPC405EP_MAL_CLK], MAL_clk); /* Setup PCI clock */ clk_setup(&cpc->clk_setup[PPC405EP_PCI_CLK], PCI_clk); /* Setup UART0 clock */ clk_setup(&cpc->clk_setup[PPC405EP_UART0_CLK], UART0_clk); /* Setup UART1 clock */ clk_setup(&cpc->clk_setup[PPC405EP_UART1_CLK], UART1_clk); } static uint32_t dcr_read_epcpc(void *opaque, int dcrn) { Ppc405CpcState *cpc = opaque; uint32_t ret; switch (dcrn) { case PPC405EP_CPC0_BOOT: ret = cpc->boot; break; case PPC405EP_CPC0_EPCTL: ret = cpc->epctl; break; case PPC405EP_CPC0_PLLMR0: ret = cpc->pllmr[0]; break; case PPC405EP_CPC0_PLLMR1: ret = cpc->pllmr[1]; break; case PPC405EP_CPC0_UCR: ret = cpc->ucr; break; case PPC405EP_CPC0_SRR: ret = cpc->srr; break; case PPC405EP_CPC0_JTAGID: ret = cpc->jtagid; break; case PPC405EP_CPC0_PCI: ret = cpc->pci; break; default: /* Avoid gcc warning */ ret = 0; break; } return ret; } static void dcr_write_epcpc(void *opaque, int dcrn, uint32_t val) { Ppc405CpcState *cpc = opaque; switch (dcrn) { case PPC405EP_CPC0_BOOT: /* Read-only register */ break; case PPC405EP_CPC0_EPCTL: /* Don't care for now */ cpc->epctl = val & 0xC00000F3; break; case PPC405EP_CPC0_PLLMR0: cpc->pllmr[0] = val & 0x00633333; ppc405ep_compute_clocks(cpc); break; case PPC405EP_CPC0_PLLMR1: cpc->pllmr[1] = val & 0xC0F73FFF; ppc405ep_compute_clocks(cpc); break; case PPC405EP_CPC0_UCR: /* UART control - don't care for now */ cpc->ucr = val & 0x003F7F7F; break; case PPC405EP_CPC0_SRR: cpc->srr = val; break; case PPC405EP_CPC0_JTAGID: /* Read-only */ break; case PPC405EP_CPC0_PCI: cpc->pci = val; break; } } static void ppc405_cpc_reset(DeviceState *dev) { Ppc405CpcState *cpc = PPC405_CPC(dev); cpc->boot = 0x00000010; /* Boot from PCI - IIC EEPROM disabled */ cpc->epctl = 0x00000000; cpc->pllmr[0] = 0x00021002; cpc->pllmr[1] = 0x80a552be; cpc->ucr = 0x00004646; cpc->srr = 0x00040000; cpc->pci = 0x00000000; cpc->er = 0x00000000; cpc->fr = 0x00000000; cpc->sr = 0x00000000; cpc->jtagid = 0x20267049; ppc405ep_compute_clocks(cpc); } /* XXX: sysclk should be between 25 and 100 MHz */ static void ppc405_cpc_realize(DeviceState *dev, Error **errp) { Ppc405CpcState *cpc = PPC405_CPC(dev); Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev); assert(dcr->cpu); cpc->clk_setup[PPC405EP_CPU_CLK].cb = ppc_40x_timers_init(&dcr->cpu->env, cpc->sysclk, PPC_INTERRUPT_PIT); cpc->clk_setup[PPC405EP_CPU_CLK].opaque = &dcr->cpu->env; ppc4xx_dcr_register(dcr, PPC405EP_CPC0_BOOT, cpc, &dcr_read_epcpc, &dcr_write_epcpc); ppc4xx_dcr_register(dcr, PPC405EP_CPC0_EPCTL, cpc, &dcr_read_epcpc, &dcr_write_epcpc); ppc4xx_dcr_register(dcr, PPC405EP_CPC0_PLLMR0, cpc, &dcr_read_epcpc, &dcr_write_epcpc); ppc4xx_dcr_register(dcr, PPC405EP_CPC0_PLLMR1, cpc, &dcr_read_epcpc, &dcr_write_epcpc); ppc4xx_dcr_register(dcr, PPC405EP_CPC0_UCR, cpc, &dcr_read_epcpc, &dcr_write_epcpc); ppc4xx_dcr_register(dcr, PPC405EP_CPC0_SRR, cpc, &dcr_read_epcpc, &dcr_write_epcpc); ppc4xx_dcr_register(dcr, PPC405EP_CPC0_JTAGID, cpc, &dcr_read_epcpc, &dcr_write_epcpc); ppc4xx_dcr_register(dcr, PPC405EP_CPC0_PCI, cpc, &dcr_read_epcpc, &dcr_write_epcpc); } static Property ppc405_cpc_properties[] = { DEFINE_PROP_UINT32("sys-clk", Ppc405CpcState, sysclk, 0), DEFINE_PROP_END_OF_LIST(), }; static void ppc405_cpc_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_cpc_realize; device_class_set_legacy_reset(dc, ppc405_cpc_reset); /* Reason: only works as function of a ppc4xx SoC */ dc->user_creatable = false; device_class_set_props(dc, ppc405_cpc_properties); } /* PPC405_SOC */ static void ppc405_soc_instance_init(Object *obj) { Ppc405SoCState *s = PPC405_SOC(obj); object_initialize_child(obj, "cpu", &s->cpu, POWERPC_CPU_TYPE_NAME("405ep")); object_initialize_child(obj, "uic", &s->uic, TYPE_PPC_UIC); object_initialize_child(obj, "cpc", &s->cpc, TYPE_PPC405_CPC); object_property_add_alias(obj, "sys-clk", OBJECT(&s->cpc), "sys-clk"); object_initialize_child(obj, "gpt", &s->gpt, TYPE_PPC405_GPT); object_initialize_child(obj, "ocm", &s->ocm, TYPE_PPC405_OCM); object_initialize_child(obj, "gpio", &s->gpio, TYPE_PPC405_GPIO); object_initialize_child(obj, "dma", &s->dma, TYPE_PPC405_DMA); object_initialize_child(obj, "i2c", &s->i2c, TYPE_PPC4xx_I2C); object_initialize_child(obj, "ebc", &s->ebc, TYPE_PPC4xx_EBC); object_initialize_child(obj, "opba", &s->opba, TYPE_PPC405_OPBA); object_initialize_child(obj, "pob", &s->pob, TYPE_PPC405_POB); object_initialize_child(obj, "plb", &s->plb, TYPE_PPC4xx_PLB); object_initialize_child(obj, "mal", &s->mal, TYPE_PPC4xx_MAL); object_initialize_child(obj, "sdram", &s->sdram, TYPE_PPC4xx_SDRAM_DDR); object_property_add_alias(obj, "dram", OBJECT(&s->sdram), "dram"); } static void ppc405_reset(void *opaque) { cpu_reset(CPU(opaque)); } static void ppc405_soc_realize(DeviceState *dev, Error **errp) { Ppc405SoCState *s = PPC405_SOC(dev); CPUPPCState *env; SysBusDevice *sbd; int i; /* init CPUs */ if (!qdev_realize(DEVICE(&s->cpu), NULL, errp)) { return; } qemu_register_reset(ppc405_reset, &s->cpu); env = &s->cpu.env; ppc_dcr_init(env, NULL, NULL); /* CPU control */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->cpc), &s->cpu, errp)) { return; } /* PLB arbitrer */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->plb), &s->cpu, errp)) { return; } /* PLB to OPB bridge */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->pob), &s->cpu, errp)) { return; } /* OBP arbitrer */ sbd = SYS_BUS_DEVICE(&s->opba); if (!sysbus_realize(sbd, errp)) { return; } sysbus_mmio_map(sbd, 0, 0xef600600); /* Universal interrupt controller */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->uic), &s->cpu, errp)) { return; } sbd = SYS_BUS_DEVICE(&s->uic); sysbus_connect_irq(sbd, PPCUIC_OUTPUT_INT, qdev_get_gpio_in(DEVICE(&s->cpu), PPC40x_INPUT_INT)); sysbus_connect_irq(sbd, PPCUIC_OUTPUT_CINT, qdev_get_gpio_in(DEVICE(&s->cpu), PPC40x_INPUT_CINT)); /* SDRAM controller */ /* * We use the 440 DDR SDRAM controller which has more regs and features * but it's compatible enough for now */ object_property_set_int(OBJECT(&s->sdram), "nbanks", 2, &error_abort); if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->sdram), &s->cpu, errp)) { return; } /* XXX 405EP has no ECC interrupt */ sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdram), 0, qdev_get_gpio_in(DEVICE(&s->uic), 17)); /* External bus controller */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->ebc), &s->cpu, errp)) { return; } /* DMA controller */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->dma), &s->cpu, errp)) { return; } sbd = SYS_BUS_DEVICE(&s->dma); for (i = 0; i < ARRAY_SIZE(s->dma.irqs); i++) { sysbus_connect_irq(sbd, i, qdev_get_gpio_in(DEVICE(&s->uic), 5 + i)); } /* I2C controller */ sbd = SYS_BUS_DEVICE(&s->i2c); if (!sysbus_realize(sbd, errp)) { return; } sysbus_mmio_map(sbd, 0, 0xef600500); sysbus_connect_irq(sbd, 0, qdev_get_gpio_in(DEVICE(&s->uic), 2)); /* GPIO */ sbd = SYS_BUS_DEVICE(&s->gpio); if (!sysbus_realize(sbd, errp)) { return; } sysbus_mmio_map(sbd, 0, 0xef600700); /* Serial ports */ if (serial_hd(0) != NULL) { serial_mm_init(get_system_memory(), 0xef600300, 0, qdev_get_gpio_in(DEVICE(&s->uic), 0), PPC_SERIAL_MM_BAUDBASE, serial_hd(0), DEVICE_BIG_ENDIAN); } if (serial_hd(1) != NULL) { serial_mm_init(get_system_memory(), 0xef600400, 0, qdev_get_gpio_in(DEVICE(&s->uic), 1), PPC_SERIAL_MM_BAUDBASE, serial_hd(1), DEVICE_BIG_ENDIAN); } /* OCM */ if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->ocm), &s->cpu, errp)) { return; } /* GPT */ sbd = SYS_BUS_DEVICE(&s->gpt); if (!sysbus_realize(sbd, errp)) { return; } sysbus_mmio_map(sbd, 0, 0xef600000); for (i = 0; i < ARRAY_SIZE(s->gpt.irqs); i++) { sysbus_connect_irq(sbd, i, qdev_get_gpio_in(DEVICE(&s->uic), 19 + i)); } /* MAL */ object_property_set_int(OBJECT(&s->mal), "txc-num", 4, &error_abort); object_property_set_int(OBJECT(&s->mal), "rxc-num", 2, &error_abort); if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->mal), &s->cpu, errp)) { return; } sbd = SYS_BUS_DEVICE(&s->mal); for (i = 0; i < ARRAY_SIZE(s->mal.irqs); i++) { sysbus_connect_irq(sbd, i, qdev_get_gpio_in(DEVICE(&s->uic), 11 + i)); } /* Ethernet */ /* Uses UIC IRQs 9, 15, 17 */ } static void ppc405_soc_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ppc405_soc_realize; /* Reason: only works as part of a ppc405 board/machine */ dc->user_creatable = false; } static const TypeInfo ppc405_types[] = { { .name = TYPE_PPC405_POB, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc405PobState), .class_init = ppc405_pob_class_init, }, { .name = TYPE_PPC405_OPBA, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(Ppc405OpbaState), .class_init = ppc405_opba_class_init, }, { .name = TYPE_PPC405_DMA, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc405DmaState), .class_init = ppc405_dma_class_init, }, { .name = TYPE_PPC405_GPIO, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(Ppc405GpioState), .class_init = ppc405_gpio_class_init, }, { .name = TYPE_PPC405_OCM, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc405OcmState), .class_init = ppc405_ocm_class_init, }, { .name = TYPE_PPC405_GPT, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(Ppc405GptState), .instance_finalize = ppc405_gpt_finalize, .class_init = ppc405_gpt_class_init, }, { .name = TYPE_PPC405_CPC, .parent = TYPE_PPC4xx_DCR_DEVICE, .instance_size = sizeof(Ppc405CpcState), .class_init = ppc405_cpc_class_init, }, { .name = TYPE_PPC405_SOC, .parent = TYPE_DEVICE, .instance_size = sizeof(Ppc405SoCState), .instance_init = ppc405_soc_instance_init, .class_init = ppc405_soc_class_init, } }; DEFINE_TYPES(ppc405_types)