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Diffstat (limited to 'hw/arm/iotkit.c')
-rw-r--r--hw/arm/iotkit.c114
1 files changed, 97 insertions, 17 deletions
diff --git a/hw/arm/iotkit.c b/hw/arm/iotkit.c
index 8cadc8b160..8742200fb4 100644
--- a/hw/arm/iotkit.c
+++ b/hw/arm/iotkit.c
@@ -16,9 +16,11 @@
#include "hw/sysbus.h"
#include "hw/registerfields.h"
#include "hw/arm/iotkit.h"
-#include "hw/misc/unimp.h"
#include "hw/arm/arm.h"
+/* Clock frequency in HZ of the 32KHz "slow clock" */
+#define S32KCLK (32 * 1000)
+
/* Create an alias region of @size bytes starting at @base
* which mirrors the memory starting at @orig.
*/
@@ -138,8 +140,23 @@ static void iotkit_init(Object *obj)
TYPE_CMSDK_APB_TIMER);
sysbus_init_child_obj(obj, "timer1", &s->timer1, sizeof(s->timer1),
TYPE_CMSDK_APB_TIMER);
+ sysbus_init_child_obj(obj, "s32ktimer", &s->s32ktimer, sizeof(s->s32ktimer),
+ TYPE_CMSDK_APB_TIMER);
sysbus_init_child_obj(obj, "dualtimer", &s->dualtimer, sizeof(s->dualtimer),
- TYPE_UNIMPLEMENTED_DEVICE);
+ TYPE_CMSDK_APB_DUALTIMER);
+ sysbus_init_child_obj(obj, "s32kwatchdog", &s->s32kwatchdog,
+ sizeof(s->s32kwatchdog), TYPE_CMSDK_APB_WATCHDOG);
+ sysbus_init_child_obj(obj, "nswatchdog", &s->nswatchdog,
+ sizeof(s->nswatchdog), TYPE_CMSDK_APB_WATCHDOG);
+ sysbus_init_child_obj(obj, "swatchdog", &s->swatchdog,
+ sizeof(s->swatchdog), TYPE_CMSDK_APB_WATCHDOG);
+ sysbus_init_child_obj(obj, "iotkit-sysctl", &s->sysctl,
+ sizeof(s->sysctl), TYPE_IOTKIT_SYSCTL);
+ sysbus_init_child_obj(obj, "iotkit-sysinfo", &s->sysinfo,
+ sizeof(s->sysinfo), TYPE_IOTKIT_SYSINFO);
+ object_initialize_child(obj, "nmi-orgate", &s->nmi_orgate,
+ sizeof(s->nmi_orgate), TYPE_OR_IRQ,
+ &error_abort, NULL);
object_initialize_child(obj, "ppc-irq-orgate", &s->ppc_irq_orgate,
sizeof(s->ppc_irq_orgate), TYPE_OR_IRQ,
&error_abort, NULL);
@@ -154,8 +171,6 @@ static void iotkit_init(Object *obj)
TYPE_SPLIT_IRQ, &error_abort, NULL);
g_free(name);
}
- sysbus_init_child_obj(obj, "s32ktimer", &s->s32ktimer, sizeof(s->s32ktimer),
- TYPE_UNIMPLEMENTED_DEVICE);
}
static void iotkit_exp_irq(void *opaque, int n, int level)
@@ -390,13 +405,15 @@ static void iotkit_realize(DeviceState *dev, Error **errp)
return;
}
- qdev_prop_set_string(DEVICE(&s->dualtimer), "name", "Dual timer");
- qdev_prop_set_uint64(DEVICE(&s->dualtimer), "size", 0x1000);
+
+ qdev_prop_set_uint32(DEVICE(&s->dualtimer), "pclk-frq", s->mainclk_frq);
object_property_set_bool(OBJECT(&s->dualtimer), true, "realized", &err);
if (err) {
error_propagate(errp, err);
return;
}
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->dualtimer), 0,
+ qdev_get_gpio_in(DEVICE(&s->armv7m), 5));
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->dualtimer), 0);
object_property_set_link(OBJECT(&s->apb_ppc0), OBJECT(mr), "port[2]", &err);
if (err) {
@@ -462,13 +479,14 @@ static void iotkit_realize(DeviceState *dev, Error **errp)
/* Devices behind APB PPC1:
* 0x4002f000: S32K timer
*/
- qdev_prop_set_string(DEVICE(&s->s32ktimer), "name", "S32KTIMER");
- qdev_prop_set_uint64(DEVICE(&s->s32ktimer), "size", 0x1000);
+ qdev_prop_set_uint32(DEVICE(&s->s32ktimer), "pclk-frq", S32KCLK);
object_property_set_bool(OBJECT(&s->s32ktimer), true, "realized", &err);
if (err) {
error_propagate(errp, err);
return;
}
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->s32ktimer), 0,
+ qdev_get_gpio_in(DEVICE(&s->armv7m), 2));
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->s32ktimer), 0);
object_property_set_link(OBJECT(&s->apb_ppc1), OBJECT(mr), "port[0]", &err);
if (err) {
@@ -501,19 +519,66 @@ static void iotkit_realize(DeviceState *dev, Error **errp)
qdev_get_gpio_in_named(dev_apb_ppc1,
"cfg_sec_resp", 0));
- /* Using create_unimplemented_device() maps the stub into the
- * system address space rather than into our container, but the
- * overall effect to the guest is the same.
- */
- create_unimplemented_device("SYSINFO", 0x40020000, 0x1000);
+ object_property_set_bool(OBJECT(&s->sysinfo), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ /* System information registers */
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->sysinfo), 0, 0x40020000);
+ /* System control registers */
+ object_property_set_bool(OBJECT(&s->sysctl), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->sysctl), 0, 0x50021000);
- create_unimplemented_device("SYSCONTROL", 0x50021000, 0x1000);
- create_unimplemented_device("S32KWATCHDOG", 0x5002e000, 0x1000);
+ /* This OR gate wires together outputs from the secure watchdogs to NMI */
+ object_property_set_int(OBJECT(&s->nmi_orgate), 2, "num-lines", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ object_property_set_bool(OBJECT(&s->nmi_orgate), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ qdev_connect_gpio_out(DEVICE(&s->nmi_orgate), 0,
+ qdev_get_gpio_in_named(DEVICE(&s->armv7m), "NMI", 0));
+
+ qdev_prop_set_uint32(DEVICE(&s->s32kwatchdog), "wdogclk-frq", S32KCLK);
+ object_property_set_bool(OBJECT(&s->s32kwatchdog), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->s32kwatchdog), 0,
+ qdev_get_gpio_in(DEVICE(&s->nmi_orgate), 0));
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->s32kwatchdog), 0, 0x5002e000);
/* 0x40080000 .. 0x4008ffff : IoTKit second Base peripheral region */
- create_unimplemented_device("NS watchdog", 0x40081000, 0x1000);
- create_unimplemented_device("S watchdog", 0x50081000, 0x1000);
+ qdev_prop_set_uint32(DEVICE(&s->nswatchdog), "wdogclk-frq", s->mainclk_frq);
+ object_property_set_bool(OBJECT(&s->nswatchdog), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->nswatchdog), 0,
+ qdev_get_gpio_in(DEVICE(&s->armv7m), 1));
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->nswatchdog), 0, 0x40081000);
+
+ qdev_prop_set_uint32(DEVICE(&s->swatchdog), "wdogclk-frq", s->mainclk_frq);
+ object_property_set_bool(OBJECT(&s->swatchdog), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->swatchdog), 0,
+ qdev_get_gpio_in(DEVICE(&s->nmi_orgate), 1));
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->swatchdog), 0, 0x50081000);
for (i = 0; i < ARRAY_SIZE(s->ppc_irq_splitter); i++) {
Object *splitter = OBJECT(&s->ppc_irq_splitter[i]);
@@ -602,6 +667,21 @@ static void iotkit_realize(DeviceState *dev, Error **errp)
iotkit_forward_sec_resp_cfg(s);
+ /* Forward the MSC related signals */
+ qdev_pass_gpios(dev_secctl, dev, "mscexp_status");
+ qdev_pass_gpios(dev_secctl, dev, "mscexp_clear");
+ qdev_pass_gpios(dev_secctl, dev, "mscexp_ns");
+ qdev_connect_gpio_out_named(dev_secctl, "msc_irq", 0,
+ qdev_get_gpio_in(DEVICE(&s->armv7m), 11));
+
+ /*
+ * Expose our container region to the board model; this corresponds
+ * to the AHB Slave Expansion ports which allow bus master devices
+ * (eg DMA controllers) in the board model to make transactions into
+ * devices in the IoTKit.
+ */
+ sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->container);
+
system_clock_scale = NANOSECONDS_PER_SECOND / s->mainclk_frq;
}
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-05 00:26:42 +0000