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-rw-r--r--hw/arm/armv7m.c39
-rw-r--r--hw/arm/mps2.c1
-rw-r--r--hw/arm/msf2-soc.c1
-rw-r--r--hw/arm/stellaris.c1
-rw-r--r--hw/arm/stm32f205_soc.c1
-rw-r--r--include/hw/arm/armv7m.h2
6 files changed, 27 insertions, 18 deletions
diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c
index 6b07666057..878613994d 100644
--- a/hw/arm/armv7m.c
+++ b/hw/arm/armv7m.c
@@ -211,25 +211,27 @@ static void armv7m_realize(DeviceState *dev, Error **errp)
memory_region_add_subregion(&s->container, 0xe000e000,
sysbus_mmio_get_region(sbd, 0));
- for (i = 0; i < ARRAY_SIZE(s->bitband); i++) {
- Object *obj = OBJECT(&s->bitband[i]);
- SysBusDevice *sbd = SYS_BUS_DEVICE(&s->bitband[i]);
-
- object_property_set_int(obj, bitband_input_addr[i], "base", &err);
- if (err != NULL) {
- error_propagate(errp, err);
- return;
+ if (s->enable_bitband) {
+ for (i = 0; i < ARRAY_SIZE(s->bitband); i++) {
+ Object *obj = OBJECT(&s->bitband[i]);
+ SysBusDevice *sbd = SYS_BUS_DEVICE(&s->bitband[i]);
+
+ object_property_set_int(obj, bitband_input_addr[i], "base", &err);
+ if (err != NULL) {
+ error_propagate(errp, err);
+ return;
+ }
+ object_property_set_link(obj, OBJECT(s->board_memory),
+ "source-memory", &error_abort);
+ object_property_set_bool(obj, true, "realized", &err);
+ if (err != NULL) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ memory_region_add_subregion(&s->container, bitband_output_addr[i],
+ sysbus_mmio_get_region(sbd, 0));
}
- object_property_set_link(obj, OBJECT(s->board_memory),
- "source-memory", &error_abort);
- object_property_set_bool(obj, true, "realized", &err);
- if (err != NULL) {
- error_propagate(errp, err);
- return;
- }
-
- memory_region_add_subregion(&s->container, bitband_output_addr[i],
- sysbus_mmio_get_region(sbd, 0));
}
}
@@ -239,6 +241,7 @@ static Property armv7m_properties[] = {
MemoryRegion *),
DEFINE_PROP_LINK("idau", ARMv7MState, idau, TYPE_IDAU_INTERFACE, Object *),
DEFINE_PROP_UINT32("init-svtor", ARMv7MState, init_svtor, 0),
+ DEFINE_PROP_BOOL("enable-bitband", ARMv7MState, enable_bitband, false),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
index c3946da317..0a0ae867d9 100644
--- a/hw/arm/mps2.c
+++ b/hw/arm/mps2.c
@@ -186,6 +186,7 @@ static void mps2_common_init(MachineState *machine)
g_assert_not_reached();
}
qdev_prop_set_string(armv7m, "cpu-type", machine->cpu_type);
+ qdev_prop_set_bit(armv7m, "enable-bitband", true);
object_property_set_link(OBJECT(&mms->armv7m), OBJECT(system_memory),
"memory", &error_abort);
object_property_set_bool(OBJECT(&mms->armv7m), true, "realized",
diff --git a/hw/arm/msf2-soc.c b/hw/arm/msf2-soc.c
index dbefade644..2702e90b45 100644
--- a/hw/arm/msf2-soc.c
+++ b/hw/arm/msf2-soc.c
@@ -117,6 +117,7 @@ static void m2sxxx_soc_realize(DeviceState *dev_soc, Error **errp)
armv7m = DEVICE(&s->armv7m);
qdev_prop_set_uint32(armv7m, "num-irq", 81);
qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
+ qdev_prop_set_bit(armv7m, "enable-bitband", true);
object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
"memory", &error_abort);
object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
index dc521b4a5a..6c69ce79b2 100644
--- a/hw/arm/stellaris.c
+++ b/hw/arm/stellaris.c
@@ -1304,6 +1304,7 @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
nvic = qdev_create(NULL, TYPE_ARMV7M);
qdev_prop_set_uint32(nvic, "num-irq", NUM_IRQ_LINES);
qdev_prop_set_string(nvic, "cpu-type", ms->cpu_type);
+ qdev_prop_set_bit(nvic, "enable-bitband", true);
object_property_set_link(OBJECT(nvic), OBJECT(get_system_memory()),
"memory", &error_abort);
/* This will exit with an error if the user passed us a bad cpu_type */
diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c
index c486d06a8b..980e5af13c 100644
--- a/hw/arm/stm32f205_soc.c
+++ b/hw/arm/stm32f205_soc.c
@@ -109,6 +109,7 @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)
armv7m = DEVICE(&s->armv7m);
qdev_prop_set_uint32(armv7m, "num-irq", 96);
qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type);
+ qdev_prop_set_bit(armv7m, "enable-bitband", true);
object_property_set_link(OBJECT(&s->armv7m), OBJECT(get_system_memory()),
"memory", &error_abort);
object_property_set_bool(OBJECT(&s->armv7m), true, "realized", &err);
diff --git a/include/hw/arm/armv7m.h b/include/hw/arm/armv7m.h
index 78308d1484..2ba24953b6 100644
--- a/include/hw/arm/armv7m.h
+++ b/include/hw/arm/armv7m.h
@@ -43,6 +43,7 @@ typedef struct {
* devices will be automatically layered on top of this view.)
* + Property "idau": IDAU interface (forwarded to CPU object)
* + Property "init-svtor": secure VTOR reset value (forwarded to CPU object)
+ * + Property "enable-bitband": expose bitbanded IO
*/
typedef struct ARMv7MState {
/*< private >*/
@@ -63,6 +64,7 @@ typedef struct ARMv7MState {
MemoryRegion *board_memory;
Object *idau;
uint32_t init_svtor;
+ bool enable_bitband;
} ARMv7MState;
#endif