arc: Fix printf size_t format related warnings (again...)

The basic idea: Define size_t using the __SIZE_TYPE__ compiler-defined
type.

For detailed explanation see similar patch for the nios2 arch:
http://patchwork.ozlabs.org/patch/379938/

Signed-off-by: Vasili Galka <vvv444@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
axs101: Fix type mismatch warning

Initialization of pointer from integer shall be designated by explicit
type cast.

Signed-off-by: Vasili Galka <vvv444@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
dm: gpio: Enhance gpio command to show only active GPIOs

The GPIO list is very long in many cases and most of them are not used.
By default, show only the GPIOs that are in use, and provide a flag to show
all of them. This makes the 'gpio status' command much more pleasant.

In order to do this, driver model now exposes a method for obtaining the
'function' of a GPIO, which describes whether it is an input or output, for
example. Implementation of this method is optional.

Signed-off-by: Simon Glass <sjg@chromium.org>
dm: gpio: Allow gpio command to adjust GPIOs that are busy

The gpio command mostly relies on gpio_request() and gpio_free() being
nops, in that you can request a GPIO twice. With driver model this is
now implemented correctly, so it fails.

Change the command to deal with a failure to claim the GPIO.

Signed-off-by: Simon Glass <sjg@chromium.org>
dm: sandbox: dts: Add a GPIO bank

Add a bank of GPIOs for sandbox which can be used for testing this
functionality.

Signed-off-by: Simon Glass <sjg@chromium.org>
mpc5xxx: Add stub implementation of cache functions

Some drivers (e.g. net/e1000) reference these functions. So, this
fixes the build of MVBC_P board.

I'm not familiar with the MPC5xxx platform, maybe a full
implementation shall be implemented instead of this stub in the
future.

Signed-off-by: Vasili Galka <vvv444@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>, Marek Vasut <marex@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Merge git://git.denx.de/u-boot-dm
dfu: Provide means to find difference between dfu-util -e and -R

This commit provides distinction between DFU device detach and reset.
The -R behavior is preserved with proper handling of the dfu-util's -e
switch, which detach the DFU device.

By running dfu-util -e; one can force device to finish the execution of
dfu command on target and execute some other scripted commands.

Moreover, some naming has been changed - the dfu_reset() method now is known
as dfu_detach(). New name better reflects the purpose of the code.

It was also necessary to increase the number of usb_gadget_handle_interrupts()
calls since we also must wait for detection of the USB reset event.

Example usage:
1. -e (detach) switch
 dfu-util -a0 -D file1.bin;dfu-util -a3 -D uImage;dfu-util -e

 access to u-boot prompt.

2. -R (reset) switch
 dfu-util -a0 -D file1.bin;dfu-util -R -a3 -D uImage

 target board reset

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
udc: dfu: s3c_udc: Provide function to check if USB reset was asserted

New dfu_usb_get_reset() method is necessary to distinct two different
use cases of dfu-util program.
This method checks if the USB bus reset has been really performed after
DFU DETACH.

Without this function the previous DFU behavior is preserved.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
usb: ci_udc: implement dfu_usb_get_reset

This allows the USB code to determine whether a USB bus reset was issued,
which in turn allows the code to differentiate between a detach (return
to shell prompt) and a board reset/reboot request.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
USB: gadget: atmel: get rid of debug compile warning

When enable debug option to compile, it will give the following
warning, this patch is used to get rid of it.
--->8---
warning: 'flags' is used uninitialized in this function [-Wuninitialized]
---8<---

Signed-off-by: Bo Shen <voice.shen@atmel.com>
USB: gadget: s3c: get rid of debug compile warning

When enable debug option to compile, it will give the following
warning, this patch is used to get rid of it.
--->8---
warning: 'flags' is used uninitialized in this function [-Wuninitialized]
---8<---

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Merge branch 'master' of git://git.denx.de/u-boot-arc
Merge git://git.denx.de/u-boot-usb
Prepare v2014.10-rc2

Signed-off-by: Tom Rini <trini@ti.com>