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We'll need some things from recent upstream Linux for the upcoming
usb update. Just sync with Linux-6.3-rc2.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Update ch9.h from Linux-6.3-rc2. Linux has split up the file into a
kernel and a uapi portion. We do the same for barebox for easier
updating in the future.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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For easier patch merging and comparison with Linux move the usb
gadget files to where Linux has them. For now do a plain git mv
include/usb include/linux/usb, eventhough there might be some
files which are purely barebox specific.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Quoting the QEMU Docs[1]:
The QEMU Firmware Configuration (fw_cfg) Device allows the guest to
retrieve various data items (blobs) that can influence how the firmware
configures itself, or may contain tables to be installed for the guest OS.
Examples include device boot order, ACPI and SMBIOS tables, virtual
machine UUID, SMP and NUMA information, kernel/initrd images for
direct (Linux) kernel booting, etc.
The driver added here is mostly based on the Linux driver.
[1]: https://www.qemu.org/docs/master/specs/fw_cfg.html
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Link: https://lore.barebox.org/20230130072707.2423294-4-ahmad@a3f.at
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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These are unused now.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Link: https://lore.barebox.org/20220107080104.135200-1-ahmad@a3f.at
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This gives virtio-enabled boards an easy route to network connectivity:
qemu-system-aarch64 -M virt -serial mon:stdio -trace file=/dev/null \
-kernel images/barebox-dt-2nd.img -cpu cortex-a57 -nographic \
-device virtio-net-device,netdev=network0 -netdev tap,id=network0,ifname=tap0
The tap0 interface created by QEMU can then be bridged/listened on.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We already support Linux event codes, because they are used in the
device tree bindings for e.g. gpio-keys.
Virtio input devices report events using the same codes, so a driver
just has to shovel the codes from virtqueue into the input layer. Do so.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This driver provides support for virtio based paravirtual device
drivers over PCI. This is useful with Qemu for boards that barebox
has PCI support for, e.g. MIPS Malta.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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With this driver enabled, -device virtio-blk-device can now be passed
to Qemu for barebox to detect a VirtIO block device mapping a host
file or block device.
If barebox is passed as argument to the Qemu -kernel option, no device
tree changes are necessary.
Example:
$ qemu-system-arm -m 256M -M virt -nographic \
-kernel build/images/barebox-dt-2nd.img \
-device virtio-rng-device \
-drive if=none,file=/tmp/first.hdimg,format=raw,id=hd0 \
-device virtio-blk-device,drive=hd0 \
-drive if=none,file=/tmp/second.hdimg,format=raw,id=hd1 \
-device virtio-blk-device,drive=hd1
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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With this driver enabled, -device virtio-serial-device can now be passed
to Qemu for barebox to detect a VirtIO console device. If barebox is
passed as argument to the Qemu -kernel option, no device tree changes are
necessary.
Example:
$ qemu-system-arm -m 256M -M virt -nographic \
-kernel build/images/barebox-dt-2nd.img \
-device virtio-serial-device \
-chardev socket,path=/tmp/foo,server,nowait,id=foo \
-device virtconsole,chardev=foo,name=console.foo
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Sandbox is only useful to test barebox in isolation. For interaction
between barebox and firmware/OS, Qemu is the better choice.
Qemu supports specifying VirtIO devices on the command line, which it
automatically fixes up into the device tree. This is nice. Add support
for that.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Import uuid.h for Linux as a requirement for NVMe subsystem.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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