On 8/28/20 9:19 PM, Sai Pavan Boddu wrote:
> Use XHCI as sysbus device, add memory region property to get the
> address space instance for dma read/write.
> 
> Signed-off-by: Sai Pavan Boddu <sai.pavan.bo...@xilinx.com>
> ---
>  hw/usb/Kconfig           |  5 +++
>  hw/usb/Makefile.objs     |  1 +
>  hw/usb/hcd-xhci-sysbus.c | 99 
> ++++++++++++++++++++++++++++++++++++++++++++++++
>  hw/usb/hcd-xhci-sysbus.h | 32 ++++++++++++++++

Please consider using scripts/git.orderfile to ease review
(less scrolling required by reviewer).

>  hw/usb/hcd-xhci.h        |  1 +
>  5 files changed, 138 insertions(+)
...

> diff --git a/hw/usb/hcd-xhci-sysbus.c b/hw/usb/hcd-xhci-sysbus.c
> new file mode 100644
> index 0000000..d5b4656
> --- /dev/null
> +++ b/hw/usb/hcd-xhci-sysbus.c
> @@ -0,0 +1,99 @@
> +/*
> + * USB xHCI controller for system-bus interface
> + * Based on hcd-echi-sysbus.c
> +
> + * SPDX-FileCopyrightText: 2020 Xilinx
> + * SPDX-FileContributor: Author: Sai Pavan Boddu <sai.pavan.bo...@xilinx.com>
> + *
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + */
> +#include "qemu/osdep.h"
> +#include "hw/qdev-properties.h"
> +#include "migration/vmstate.h"
> +#include "trace.h"
> +#include "qapi/error.h"
> +#include "hcd-xhci-sysbus.h"
> +#include "hw/irq.h"
> +
> +static void xhci_sysbus_intr_raise(XHCIState *xhci, int n, bool level)
> +{
> +    XHCISysbusState *s = container_of(xhci, XHCISysbusState, xhci);
> +
> +    qemu_set_irq(s->irq[n], level);
> +}
> +
> +void xhci_sysbus_reset(DeviceState *dev)
> +{
> +    XHCISysbusState *s = XHCI_SYSBUS(dev);
> +
> +    device_legacy_reset(DEVICE(&s->xhci));

Documentation comment:

"This function is deprecated and will be removed when it becomes unused.
 Please use device_cold_reset() now."

> +}
> +


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