dm: sunxi: Add a new config for an FDT-based pcDuino3

For now we won't want to mess with the existing configurations. Create a
new one which will enable device tree and driver model. Note that this
brings the device tree binary into u-boot-sunxi-with-spl.bin.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
dm: sunxi: Add pinmux functions which take a bank parameter

With driver model we will have access to a bank pointer, so we want to
use it rather than converting back to a number, and then back to a
bank pointer. Add functions to provide this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
dm: sunxi: Make sure that GPIOs are requested

The scsi_init() function uses a GPIO so should request it. There is no
way to return an error here, and the request may be made multiple times,
so just ignore errors for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
dm: sunxi: Modify the GPIO driver to support driver model

This adds driver model support to the sunxi GPIO driver, using the device
tree to trigger binding of the driver. The driver will still operate
without driver model too.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
dm: sunxi: Add support for serial using driver model

Add a driver for the designware serial UART used on sunxi. This just
redirects to the normal ns16550 driver.

Add a stdout-path to the device tree so that the correct UART is chosen.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sunxi: Request card detect gpio

This is necessary for the device-model enabled builds to work properly.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
sunxi: Request USB vbus gpio

This is necessary for the device-model enabled builds to work properly.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: Remove unnecessary portnr lookup from usb_new_device

If the device has a parent, it is instantiated from usb_hub_port_connect_change
and the portnr is right there in dev->portnr, so there is no need for this
whole dance to look it up.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: Do not power-cycle usb devices on init

Do as the Linux kernel does and power on any ports which are not yet one,
this is enough.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: ehci: Do not disable an already disabled periodic schedule

When periodic_schedules == 0, the schedule is disabled and there is no reason
to disable it again.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: ehci: Move interrupt packet length check to create_int_queue

Preperation patch to use create_int_queue outside of ehci-hcd.c .

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: ehci: Move cache invalidation to poll_int_queue

Preperation patch to use poll_int_queue outside of ehci-hcd.c .

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: Make pollable int support available outside of ehci-hcd.c

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: kbd: Remove unused usb_kbd_generic_poll function

This is not used anywhere, so lets remove it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: kbd: Fix memleak on usb_kbd_deregister()

Free the keyboard hid-report buffer and private data on deregister.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
stdio: Fix memleak on stdio_deregister

stdio_register makes a malloc-ed copy of struct stdio_dev through stdio_clone,
free the malloc-ed memory on stdio_deregister.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: kbd: Cache pipe, interval and packetsize

Instead of looking them up every time we need them.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
usb: kbd: Add (optional) support for using an interrupt queue for polling

Waiting an interrupt packet to complete in usb_kbd_poll_for_event, causes
a 40 ms latency for each call to usb_kbd_testc, which is undesirable.

Using control messages leads to lower (but still not 0) latency, but some
devices do not work well with control messages (e.g. my kvm behaves funny
with them).

This commit adds support for using the int_queue mechanism which at least
the ehci-hcd driver supports. This allows polling with 0 latency, while
using interrupt packets.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
kconfig: Fix compiler warning in menu.c

This fixes the following compiler warning:

In file included from scripts/kconfig/zconf.tab.c:2537:0:
scripts/kconfig/menu.c: In function ‘get_symbol_str’:
scripts/kconfig/menu.c:590:18: warning: ‘jump’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     jump->offset = strlen(r->s);
                  ^
In file included from scripts/kconfig/zconf.tab.c:2537:0:
scripts/kconfig/menu.c:551:19: note: ‘jump’ was declared here
  struct jump_key *jump;

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
video: add cfb console driver for sunxi

This adds a fixed mode hdmi driver for the sunxi platform. The fixed
mode is a relatively safe 1024x768, more complete EDID handling is
currently not provided as that would mean a significant rewrite of uboot
infrastructure. Only HDMI is supported today, DT based LCD will have to
wait until a KMS driver is out.

This code is enabled when HPD detects an attached monitor, which works
well on even A13, where no HDMI signals are externally available on the
package.

Current config is such that 8MB is shaved off at the top of the RAM.
This avoids several memory handling issues, most significant is the fact
that on linux on ARM you are not allowed to remap known RAM as IO. A
clued in display driver will be able to recycle this reserved RAM in
future though.

cfbconsole was chosen as it provides the most important functionality: a
working u-boot console, allowing for the debugging of certain issues
without the need for a UART. To enable the console on HDMI, add the
following to your boot script:
	setenv stdout serial,vga
	setenv stderr serial,vga
This will sadly only take effect after the environment is read in, which
makes this hdmi console driver less universally useful as hoped.

Signed-off-by: Luc Verhaegen <libv@skynet.be>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>