VirtIO can use various different buses and virtio devices are commonly implemented as PCI devices. But virtual environments without PCI support (a common situation in embedded devices models) might use simple memory mapped device (“virtio-mmio”) instead of the PCI device.
This adds a transport driver that implements UCLASS_VIRTIO for virtio over mmio.
Signed-off-by: Tuomas Tynkkynen tuomas.tynkkynen@iki.fi Signed-off-by: Bin Meng bmeng.cn@gmail.com Reviewed-by: Simon Glass sjg@chromium.org ---
Changes in v3: None Changes in v2: None
drivers/virtio/Kconfig | 7 + drivers/virtio/Makefile | 1 + drivers/virtio/virtio_mmio.c | 413 +++++++++++++++++++++++++++++++++++++++++++ drivers/virtio/virtio_mmio.h | 129 ++++++++++++++ 4 files changed, 550 insertions(+) create mode 100644 drivers/virtio/virtio_mmio.c create mode 100644 drivers/virtio/virtio_mmio.h
Applied to u-boot-dm/next, thanks!