[PATCH v3 6/7] wire in the dwc-hsotg (dwc2) USB host controller emulation

[Paul Zimmerman <pauldzim@gmail.com>]

Wire the dwc-hsotg (dwc2) emulation into Qemu

Signed-off-by: Paul Zimmerman <pauldzim@gmail.com>
---
 hw/arm/bcm2835_peripherals.c         | 21 ++++++++++++++++++++-
 hw/usb/Kconfig                       |  5 +++++
 hw/usb/Makefile.objs                 |  1 +
 include/hw/arm/bcm2835_peripherals.h |  3 ++-
 4 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c
index 5e2c832d95..3b554cfac0 100644
--- a/hw/arm/bcm2835_peripherals.c
+++ b/hw/arm/bcm2835_peripherals.c
@@ -128,6 +128,13 @@ static void bcm2835_peripherals_init(Object *obj)
     sysbus_init_child_obj(obj, "mphi", &s->mphi, sizeof(s->mphi),
                           TYPE_BCM2835_MPHI);
 
+    /* DWC2 */
+    sysbus_init_child_obj(obj, "dwc2", &s->dwc2, sizeof(s->dwc2),
+                          TYPE_DWC2_USB);
+
+    object_property_add_const_link(OBJECT(&s->dwc2), "dma-mr",
+                                   OBJECT(&s->gpu_bus_mr), &error_abort);
+
     object_property_add_const_link(OBJECT(&s->gpio), "sdbus-sdhci",
                                    OBJECT(&s->sdhci.sdbus), &error_abort);
     object_property_add_const_link(OBJECT(&s->gpio), "sdbus-sdhost",
@@ -385,6 +392,19 @@ static void bcm2835_peripherals_realize(DeviceState *dev, Error **errp)
         qdev_get_gpio_in_named(DEVICE(&s->ic), BCM2835_IC_GPU_IRQ,
                                INTERRUPT_HOSTPORT));
 
+    /* DWC2 */
+    object_property_set_bool(OBJECT(&s->dwc2), true, "realized", &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+
+    memory_region_add_subregion(&s->peri_mr, USB_OTG_OFFSET,
+                sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->dwc2), 0));
+    sysbus_connect_irq(SYS_BUS_DEVICE(&s->dwc2), 0,
+        qdev_get_gpio_in_named(DEVICE(&s->ic), BCM2835_IC_GPU_IRQ,
+                               INTERRUPT_USB));
+
     create_unimp(s, &s->armtmr, "bcm2835-sp804", ARMCTRL_TIMER0_1_OFFSET, 0x40);
     create_unimp(s, &s->cprman, "bcm2835-cprman", CPRMAN_OFFSET, 0x1000);
     create_unimp(s, &s->a2w, "bcm2835-a2w", A2W_OFFSET, 0x1000);
@@ -398,7 +418,6 @@ static void bcm2835_peripherals_realize(DeviceState *dev, Error **errp)
     create_unimp(s, &s->otp, "bcm2835-otp", OTP_OFFSET, 0x80);
     create_unimp(s, &s->dbus, "bcm2835-dbus", DBUS_OFFSET, 0x8000);
     create_unimp(s, &s->ave0, "bcm2835-ave0", AVE0_OFFSET, 0x8000);
-    create_unimp(s, &s->dwc2, "dwc-usb2", USB_OTG_OFFSET, 0x1000);
     create_unimp(s, &s->sdramc, "bcm2835-sdramc", SDRAMC_OFFSET, 0x100);
 }
 
diff --git a/hw/usb/Kconfig b/hw/usb/Kconfig
index 464348ba14..d4d8c37c28 100644
--- a/hw/usb/Kconfig
+++ b/hw/usb/Kconfig
@@ -46,6 +46,11 @@ config USB_MUSB
     bool
     select USB
 
+config USB_DWC2
+    bool
+    default y
+    select USB
+
 config TUSB6010
     bool
     select USB_MUSB
diff --git a/hw/usb/Makefile.objs b/hw/usb/Makefile.objs
index 66835e5bf7..fa5c3fa1b8 100644
--- a/hw/usb/Makefile.objs
+++ b/hw/usb/Makefile.objs
@@ -12,6 +12,7 @@ common-obj-$(CONFIG_USB_EHCI_SYSBUS) += hcd-ehci-sysbus.o
 common-obj-$(CONFIG_USB_XHCI) += hcd-xhci.o
 common-obj-$(CONFIG_USB_XHCI_NEC) += hcd-xhci-nec.o
 common-obj-$(CONFIG_USB_MUSB) += hcd-musb.o
+common-obj-$(CONFIG_USB_DWC2) += hcd-dwc2.o
 
 common-obj-$(CONFIG_TUSB6010) += tusb6010.o
 common-obj-$(CONFIG_IMX)      += chipidea.o
diff --git a/include/hw/arm/bcm2835_peripherals.h b/include/hw/arm/bcm2835_peripherals.h
index 7a7a8f6141..48a0ad1633 100644
--- a/include/hw/arm/bcm2835_peripherals.h
+++ b/include/hw/arm/bcm2835_peripherals.h
@@ -27,6 +27,7 @@
 #include "hw/sd/bcm2835_sdhost.h"
 #include "hw/gpio/bcm2835_gpio.h"
 #include "hw/timer/bcm2835_systmr.h"
+#include "hw/usb/hcd-dwc2.h"
 #include "hw/misc/unimp.h"
 
 #define TYPE_BCM2835_PERIPHERALS "bcm2835-peripherals"
@@ -67,7 +68,7 @@ typedef struct BCM2835PeripheralState {
     UnimplementedDeviceState ave0;
     UnimplementedDeviceState bscsl;
     UnimplementedDeviceState smi;
-    UnimplementedDeviceState dwc2;
+    DWC2State dwc2;
     UnimplementedDeviceState sdramc;
 } BCM2835PeripheralState;
 
-- 
2.17.1