Patch cherry-picked from the following location:
https://chromium-review.googlesource.com/#/c/269931/



Disable the i2c device on gsbi4 and mark gsbi4_h and gsbi4_qup clks as
unused. If they are enabled, clock framework will turn them off at end
of probe. On ipq806x by design gsbi4_qup, gsbi4_h clks and i2c on gsbi4
are meant for RPM usage. So turning them off in kernel is incorrect.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45728

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45727

This change adds PCIe support to IPQ806x based platforms. The driver is
actually cherry-picked from the following LKML thread:
*https://lwn.net/Articles/643086/

 (patches 110-111)

We also add here an additional fix to support multiple PCI controllers
on the same platform (patch 112), and to patch the ap148 & dbs149 DTS
files (patch 113).

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45663

ARCH_QCOM is using the ARCH_MULTIPLATFORM option, as now recommended
on most ARM architectures. This automatically calculate ZRELADDR by
masking PHYS_OFFSET with 0xf8000000.

On IPQ806x though, the first ~20MB of RAM is reserved for the hardware.
In newer bootloader, when DT is used, this is not a problem, we just
reserve this memory in the device tree. But if the bootloader doesn't
have DT support, then ATAGS have to be used. In this case, the ARM
decompressor will position the kernel in this low mem, which will not be
in the RAM section mapped by the bootloader, which means the kernel will
freeze in the middle of the boot process trying to map the memory.

As a work around, this patch allows disabling AUTO_ZRELADDR when
ARCH_QCOM is selected. It makes the zImage usage possible on bootloaders
which don't support device-tree, which is the case on certain early
IPQ806x based designs.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45661

DB149 is an IPQ806x based development platform. This patch adds the dts
files to support it.

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45536

Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>

SVN-Revision: 45210