diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2012-05-02 16:49:40 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2012-06-19 13:24:44 +0000 |
| commit | 306a571a2d75e32cd2eae5486c2714b7b7792a63 (patch) | |
| tree | a6e1b1e8a6587c808110024b35cc9631162ae4c7 /hw/arm_gic.c | |
| parent | 2a29ddee82029580fa85276767f73fedc30c8a0a (diff) | |
hw/arm_gic: Add qdev property for GIC revision
GIC behaviour can be different between revision 1 and
2 of the architectural GIC specification; we also have
to handle the legacy 11MPCore GIC, which is different
again in some places. Introduce a qdev property so we
can behave appropriately.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm_gic.c')
| -rw-r--r-- | hw/arm_gic.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hw/arm_gic.c b/hw/arm_gic.c index 2ec10ce457..ad72ac65a9 100644 --- a/hw/arm_gic.c +++ b/hw/arm_gic.c @@ -119,8 +119,13 @@ typedef struct gic_state struct gic_state *backref[NCPU]; MemoryRegion cpuiomem[NCPU+1]; /* CPU interfaces */ uint32_t num_irq; + uint32_t revision; } gic_state; +/* The special cases for the revision property: */ +#define REV_11MPCORE 0 +#define REV_NVIC 0xffffffff + static inline int gic_get_current_cpu(gic_state *s) { if (s->num_cpu > 1) { @@ -880,6 +885,11 @@ static int arm_gic_init(SysBusDevice *dev) static Property arm_gic_properties[] = { DEFINE_PROP_UINT32("num-cpu", gic_state, num_cpu, 1), DEFINE_PROP_UINT32("num-irq", gic_state, num_irq, 32), + /* Revision can be 1 or 2 for GIC architecture specification + * versions 1 or 2, or 0 to indicate the legacy 11MPCore GIC. + * (Internally, 0xffffffff also indicates "not a GIC but an NVIC".) + */ + DEFINE_PROP_UINT32("revision", gic_state, revision, 1), DEFINE_PROP_END_OF_LIST(), }; |