arm: Instantiate NRF51 general purpose I/O

Instantiates GPIO peripheral model

Signed-off-by: Steffen Görtz <contrib@steffen-goertz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20190103091119.9367-7-stefanha@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 18 insertions, 0 deletions

diff --git a/hw/arm/nrf51_soc.c b/hw/arm/nrf51_soc.c
index d2a19b8ead..db817fe506 100644
--- a/hw/arm/nrf51_soc.c
+++ b/hw/arm/nrf51_soc.c
@@ -99,6 +99,19 @@ static void nrf51_soc_realize(DeviceState *dev_soc, Error **errp)
                        qdev_get_gpio_in(DEVICE(&s->cpu),
                        BASE_TO_IRQ(NRF51_RNG_BASE)));
 
+    /* GPIO */
+    object_property_set_bool(OBJECT(&s->gpio), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+
+    mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->gpio), 0);
+    memory_region_add_subregion_overlap(&s->container, NRF51_GPIO_BASE, mr, 0);
+
+    /* Pass all GPIOs to the SOC layer so they are available to the board */
+    qdev_pass_gpios(DEVICE(&s->gpio), dev_soc, NULL);
+
     create_unimplemented_device("nrf51_soc.io", NRF51_IOMEM_BASE,
                                 NRF51_IOMEM_SIZE);
     create_unimplemented_device("nrf51_soc.ficr", NRF51_FICR_BASE,
@@ -126,6 +139,9 @@ static void nrf51_soc_init(Object *obj)
 
     sysbus_init_child_obj(obj, "rng", &s->rng, sizeof(s->rng),
                            TYPE_NRF51_RNG);
+
+    sysbus_init_child_obj(obj, "gpio", &s->gpio, sizeof(s->gpio),
+                          TYPE_NRF51_GPIO);
 }
 
 static Property nrf51_soc_properties[] = {
diff --git a/include/hw/arm/nrf51_soc.h b/include/hw/arm/nrf51_soc.h
index 9e3ba916bd..84e0278881 100644
--- a/include/hw/arm/nrf51_soc.h
+++ b/include/hw/arm/nrf51_soc.h
@@ -14,6 +14,7 @@
 #include "hw/arm/armv7m.h"
 #include "hw/char/nrf51_uart.h"
 #include "hw/misc/nrf51_rng.h"
+#include "hw/gpio/nrf51_gpio.h"
 
 #define TYPE_NRF51_SOC "nrf51-soc"
 #define NRF51_SOC(obj) \
@@ -28,6 +29,7 @@ typedef struct NRF51State {
 
     NRF51UARTState uart;
     NRF51RNGState rng;
+    NRF51GPIOState gpio;
 
     MemoryRegion iomem;
     MemoryRegion sram;