diff options
Diffstat (limited to 'hw/arm11mpcore.c')
| -rw-r--r-- | hw/arm11mpcore.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/hw/arm11mpcore.c b/hw/arm11mpcore.c index bc0457e58b..f4d88dca7c 100644 --- a/hw/arm11mpcore.c +++ b/hw/arm11mpcore.c @@ -10,11 +10,6 @@ #include "sysbus.h" #include "qemu-timer.h" -/* ??? The MPCore TRM says the on-chip controller has 224 external IRQ lines - (+ 32 internal). However my test chip only exposes/reports 32. - More importantly Linux falls over if more than 32 are present! */ -#define GIC_NIRQ 64 - #define NCPU 4 static inline int @@ -37,6 +32,7 @@ typedef struct mpcore_priv_state { MemoryRegion iomem; MemoryRegion container; DeviceState *mptimer; + uint32_t num_irq; } mpcore_priv_state; /* Per-CPU private memory mapped IO. */ @@ -132,7 +128,7 @@ static int mpcore_priv_init(SysBusDevice *dev) { mpcore_priv_state *s = FROM_SYSBUSGIC(mpcore_priv_state, dev); - gic_init(&s->gic, s->num_cpu); + gic_init(&s->gic, s->num_cpu, s->num_irq); s->mptimer = qdev_create(NULL, "arm_mptimer"); qdev_prop_set_uint32(s->mptimer, "num-cpu", s->num_cpu); qdev_init_nofail(s->mptimer); @@ -221,6 +217,15 @@ static SysBusDeviceInfo mpcore_priv_info = { .qdev.size = sizeof(mpcore_priv_state), .qdev.props = (Property[]) { DEFINE_PROP_UINT32("num-cpu", mpcore_priv_state, num_cpu, 1), + /* The ARM11 MPCORE TRM says the on-chip controller may have + * anything from 0 to 224 external interrupt IRQ lines (with another + * 32 internal). We default to 32+32, which is the number provided by + * the ARM11 MPCore test chip in the Realview Versatile Express + * coretile. Other boards may differ and should set this property + * appropriately. Some Linux kernels may not boot if the hardware + * has more IRQ lines than the kernel expects. + */ + DEFINE_PROP_UINT32("num-irq", mpcore_priv_state, num_irq, 64), DEFINE_PROP_END_OF_LIST(), } }; |