diff options
Diffstat (limited to 'hw/a9mpcore.c')
| -rw-r--r-- | hw/a9mpcore.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/hw/a9mpcore.c b/hw/a9mpcore.c index 3ef0e138c..521b8cc78 100644 --- a/hw/a9mpcore.c +++ b/hw/a9mpcore.c @@ -11,9 +11,8 @@ #include "sysbus.h" /* Configuration for arm_gic.c: - * number of external IRQ lines, max number of CPUs, how to ID current CPU + * max number of CPUs, how to ID current CPU */ -#define GIC_NIRQ 96 #define NCPU 4 static inline int @@ -37,6 +36,7 @@ typedef struct a9mp_priv_state { MemoryRegion ptimer_iomem; MemoryRegion container; DeviceState *mptimer; + uint32_t num_irq; } a9mp_priv_state; static uint64_t a9_scu_read(void *opaque, target_phys_addr_t offset, @@ -153,7 +153,7 @@ static int a9mp_priv_init(SysBusDevice *dev) hw_error("a9mp_priv_init: num-cpu may not be more than %d\n", NCPU); } - 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); @@ -216,6 +216,13 @@ static SysBusDeviceInfo a9mp_priv_info = { .qdev.reset = a9mp_priv_reset, .qdev.props = (Property[]) { DEFINE_PROP_UINT32("num-cpu", a9mp_priv_state, num_cpu, 1), + /* The Cortex-A9MP may have anything from 0 to 224 external interrupt + * IRQ lines (with another 32 internal). We default to 64+32, which + * is the number provided by the Cortex-A9MP test chip in the + * Realview PBX-A9 and Versatile Express A9 development boards. + * Other boards may differ and should set this property appropriately. + */ + DEFINE_PROP_UINT32("num-irq", a9mp_priv_state, num_irq, 96), DEFINE_PROP_END_OF_LIST(), } }; |