diff options
Diffstat (limited to 'hw/openpic.c')
| -rw-r--r-- | hw/openpic.c | 54 |
1 files changed, 32 insertions, 22 deletions
diff --git a/hw/openpic.c b/hw/openpic.c index 9c956b9..eff1eee 100644 --- a/hw/openpic.c +++ b/hw/openpic.c @@ -124,6 +124,11 @@ #define VENI_GENERIC 0x00000000 /* Generic Vendor ID */ +#define GLBC_RESET 0x80000000 + +#define TIBC_CI 0x80000000 /* count inhibit */ +#define TICC_TOG 0x80000000 /* toggles when decrement to zero */ + #define IDR_EP_SHIFT 31 #define IDR_EP_MASK (1 << IDR_EP_SHIFT) #define IDR_CI0_SHIFT 30 @@ -190,11 +195,15 @@ typedef struct IRQ_src_t { #define IPVP_SENSE_SHIFT 22 #define IPVP_SENSE_MASK (1 << IPVP_SENSE_SHIFT) -#define IPVP_PRIORITY_MASK (0x1F << 16) +#define IPVP_PRIORITY_MASK (0xF << 16) #define IPVP_PRIORITY(_ipvpr_) ((int)(((_ipvpr_) & IPVP_PRIORITY_MASK) >> 16)) #define IPVP_VECTOR_MASK ((1 << VECTOR_BITS) - 1) #define IPVP_VECTOR(_ipvpr_) ((_ipvpr_) & IPVP_VECTOR_MASK) +/* IDE[EP/CI] are only for FSL MPIC prior to v4.0 */ +#define IDE_EP 0x80000000 /* external pin */ +#define IDE_CI 0x40000000 /* critical interrupt */ + typedef struct IRQ_dst_t { uint32_t pctp; /* CPU current task priority */ uint32_t pcsr; /* CPU sensitivity register */ @@ -375,7 +384,7 @@ static void openpic_update_irq(OpenPICState *opp, int n_IRQ) DPRINTF("%s: IRQ %d is already active\n", __func__, n_IRQ); return; } - if (src->ide == 0x00000000) { + if (src->ide == 0) { /* No target */ DPRINTF("%s: IRQ %d has no target\n", __func__, n_IRQ); return; @@ -432,13 +441,13 @@ static void openpic_reset(DeviceState *d) OpenPICState *opp = FROM_SYSBUS(typeof (*opp), sysbus_from_qdev(d)); int i; - opp->glbc = 0x80000000; + opp->glbc = GLBC_RESET; /* Initialise controller registers */ opp->frep = ((opp->nb_irqs -1) << FREP_NIRQ_SHIFT) | ((opp->nb_cpus -1) << FREP_NCPU_SHIFT) | (opp->vid << FREP_VID_SHIFT); - opp->pint = 0x00000000; + opp->pint = 0; opp->spve = -1 & opp->spve_mask; opp->tifr = opp->tifr_reset; /* Initialise IRQ sources */ @@ -448,7 +457,7 @@ static void openpic_reset(DeviceState *d) } /* Initialise IRQ destinations */ for (i = 0; i < MAX_CPU; i++) { - opp->dst[i].pctp = 0x0000000F; + opp->dst[i].pctp = 15; opp->dst[i].pcsr = 0x00000000; memset(&opp->dst[i].raised, 0, sizeof(IRQ_queue_t)); opp->dst[i].raised.next = -1; @@ -457,11 +466,11 @@ static void openpic_reset(DeviceState *d) } /* Initialise timers */ for (i = 0; i < MAX_TMR; i++) { - opp->timers[i].ticc = 0x00000000; - opp->timers[i].tibc = 0x80000000; + opp->timers[i].ticc = 0; + opp->timers[i].tibc = TIBC_CI; } /* Go out of RESET state */ - opp->glbc = 0x00000000; + opp->glbc = 0; } static inline uint32_t read_IRQreg_ide(OpenPICState *opp, int n_IRQ) @@ -478,7 +487,7 @@ static inline void write_IRQreg_ide(OpenPICState *opp, int n_IRQ, uint32_t val) { uint32_t tmp; - tmp = val & 0xC0000000; + tmp = val & (IDE_EP | IDE_CI); tmp |= val & ((1ULL << MAX_CPU) - 1); opp->src[n_IRQ].ide = tmp; DPRINTF("Set IDE %d to 0x%08x\n", n_IRQ, opp->src[n_IRQ].ide); @@ -488,8 +497,8 @@ static inline void write_IRQreg_ipvp(OpenPICState *opp, int n_IRQ, uint32_t val) { /* NOTE: not fully accurate for special IRQs, but simple and sufficient */ /* ACTIVITY bit is read-only */ - opp->src[n_IRQ].ipvp = (opp->src[n_IRQ].ipvp & 0x40000000) - | (val & 0x800F00FF); + opp->src[n_IRQ].ipvp = (opp->src[n_IRQ].ipvp & IPVP_ACTIVITY_MASK) | + (val & (IPVP_MASK_MASK | IPVP_PRIORITY_MASK | IPVP_VECTOR_MASK)); openpic_update_irq(opp, n_IRQ); DPRINTF("Set IPVP %d to 0x%08x -> 0x%08x\n", n_IRQ, val, opp->src[n_IRQ].ipvp); @@ -521,7 +530,7 @@ static void openpic_gbl_write(void *opaque, hwaddr addr, uint64_t val, case 0x1000: /* FREP */ break; case 0x1020: /* GLBC */ - if (val & 0x80000000) { + if (val & GLBC_RESET) { openpic_reset(&opp->busdev.qdev); } break; @@ -634,10 +643,11 @@ static void openpic_tmr_write(void *opaque, hwaddr addr, uint64_t val, case 0x00: /* TICC (GTCCR) */ break; case 0x10: /* TIBC (GTBCR) */ - if ((opp->timers[idx].ticc & 0x80000000) != 0 && - (val & 0x80000000) == 0 && - (opp->timers[idx].tibc & 0x80000000) != 0) - opp->timers[idx].ticc &= ~0x80000000; + if ((opp->timers[idx].ticc & TICC_TOG) != 0 && + (val & TIBC_CI) == 0 && + (opp->timers[idx].tibc & TIBC_CI) != 0) { + opp->timers[idx].ticc &= ~TICC_TOG; + } opp->timers[idx].tibc = val; break; case 0x20: /* TIVP (GTIVPR) */ @@ -1190,9 +1200,9 @@ static int openpic_init(SysBusDevice *dev) opp->vid = VID_REVISION_1_2; opp->veni = VENI_GENERIC; opp->spve_mask = 0xFFFF; - opp->tifr_reset = 0x00000000; - opp->ipvp_reset = 0x80000000; - opp->ide_reset = 0x00000001; + opp->tifr_reset = 0; + opp->ipvp_reset = IPVP_MASK_MASK; + opp->ide_reset = 1 << 0; opp->max_irq = FSL_MPIC_20_MAX_IRQ; opp->irq_ipi0 = FSL_MPIC_20_IPI_IRQ; opp->irq_tim0 = FSL_MPIC_20_TMR_IRQ; @@ -1206,9 +1216,9 @@ static int openpic_init(SysBusDevice *dev) opp->vid = VID_REVISION_1_3; opp->veni = VENI_GENERIC; opp->spve_mask = 0xFF; - opp->tifr_reset = 0x003F7A00; - opp->ipvp_reset = 0xA0000000; - opp->ide_reset = 0x00000000; + opp->tifr_reset = 4160000; + opp->ipvp_reset = IPVP_MASK_MASK | IPVP_MODE_MASK; + opp->ide_reset = 0; opp->max_irq = RAVEN_MAX_IRQ; opp->irq_ipi0 = RAVEN_IPI_IRQ; opp->irq_tim0 = RAVEN_TMR_IRQ; |