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hw/arm/npcm7xx: Add EHCI and OHCI controllers

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The NPCM730 and NPCM750 chips have a single USB host port shared between
a USB 2.0 EHCI host controller and a USB 1.1 OHCI host controller. This
adds support for both of them.

Testing notes:
  * With -device usb-kbd, qemu will automatically insert a full-speed
    hub, and the keyboard becomes controlled by the OHCI controller.
  * With -device usb-kbd,bus=usb-bus.0,port=1, the keyboard is directly
    attached to the port without any hubs, and the device becomes
    controlled by the EHCI controller since it's high speed capable.
  * With -device usb-kbd,bus=usb-bus.0,port=1,usb_version=1, the
    keyboard is directly attached to the port, but it only advertises
    itself as full-speed capable, so it becomes controlled by the OHCI
    controller.

In all cases, the keyboard device enumerates correctly.

Reviewed-by: Tyrone Ting <kfting@nuvoton.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Havard Skinnemoen
2020-10-23 14:06:36 -07:00
committed by Peter Maydell
parent 326ccfe240
commit e23e7b1259
5 changed files with 50 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
docs/system/arm/nuvoton.rst
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@@ -39,6 +39,7 @@ Supported devices
* OTP controllers (no protection features)
* Flash Interface Unit (FIU; no protection features)
* Random Number Generator (RNG)
* USB host (USBH)
Missing devices
---------------
@@ -54,7 +55,6 @@ Missing devices
* eSPI slave interface
* Ethernet controllers (GMAC and EMC)
* USB host (USBH)
* USB device (USBD)
* SMBus controller (SMBF)
* Peripheral SPI controller (PSPI)