The additional FIFO might speed up transfers in some cases.

The calculated values somehow don't agree with the sched_clock code and
we end up with warnings like:

sched_clock: wrong multiply/shift: 2097152000>>21 vs calculated 4194304000>>22
sched_clock: fix multiply/shift to avoid scheduler hiccups

So use the constant values much like arch/arm/mach-tegra/timer.c does.

Signed-off-by: Chris Boot <bootc@bootc.net>

Signed-off-by: Chris Boot <bootc@bootc.net>

Conflicts:

	arch/arm/Kconfig.debug
	arch/arm/mach-bcm2708/include/mach/memory.h

Signed-off-by: Chris Boot <bootc@bootc.net>

Not sure what the original code was trying to do as it was completely
wrong on many levels. This patch fixes the macro to return the correct
physical and virtual addresses of the PL011 UART on the RPi.

Note that you need to boot the compressed kernel (zImage) so that the
UART is configured at boot, or your kernel will hang when it tries to
access the UART.

Signed-off-by: Chris Boot <bootc@bootc.net>

Signed-off-by: Chris Boot <bootc@bootc.net>

This was added for the DWC OTG driver in commit d5ef856b. As we've
removed the dead code from that driver that depends on this, it is no
longer required at all.

Signed-off-by: Chris Boot <bootc@bootc.net>

The dwc_common_port library used by the dwc_otg includes bignumber and
crypto functions which require 64x64 multiplication functions. Remove
this dead code.

Signed-off-by: Chris Boot <bootc@bootc.net>

This reverts commit 7e769589.

Better fix for quitting X hang. Interrupted mailbox reads are not something we can reliably recover from, so down_interruptable is not a safe call.

Change to add SCSI tape support as loadable modules to kernel config after line 264 add these two lines: CONFIG_CHR_DEV_ST=m CONFIG_CHR_DEV_OSST=m

commit 052b1987 upstream.

When swapon() was not passed the SWAP_FLAG_DISCARD option, sys_swapon()
will still perform a discard operation.  This can cause problems if
discard is slow or buggy.

Reverse the order of the check so that a discard operation is performed
only if the sys_swapon() caller is attempting to enable discard.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Reported-by: Holger Kiehl <Holger.Kiehl@dwd.de>
Tested-by: Holger Kiehl <Holger.Kiehl@dwd.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

Backport of Chris Boot's i2c and spi drivers.
Thanks bootc and cburbridge.

DWC OTG driver patch to check hcd urb before unlinking.
Fix problem with kernel crash on closing USB ALSA devices.
https://github.com/raspberrypi/firmware/issues/51
Thanks to ddv2005 and bryankemp.

Updating dwc_otg driver to fix issue releasing pcm stream see: https://github.com/raspberrypi/firmware/issues/51

Add mechanism to reduce the number of SOF interrupts in dwc_otg USB driver. Enable through /proc/dwc_sof/SOF_reduction

Store palette info where GPU can see it, so 8bpp modes can work. Requires updated start.elf to work properly

Add a pm_power_off function that resets us, and indicates to bootcode.bin not to reboot us. Should allow a lower power 'off' state

 resulting in overrun of the input buffer and memory
 corruption causing an OOPS. We should be checking for the
 fact that we might get more data than we want. Thanks Naren.