As a pre-requisite step towards enabling multi-platform support
for Exynos, enable it to use generic uncompress.h instead of the
one provided in machine code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

This patch adds low level debug uart support to Broadcom mobile based
SOCs.
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Tested-by: Markus Mayer <markus.mayer@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Tested-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

This adds UART0 as found on Marvell 88DE3xxx SoCs, e.g. Armada 1500
to the list of possible lowlevel debug options.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Jason Cooper <jason@lakedaemon.net>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>

Now that all the page setting infrastructure is in place,
Add the DEBUG_SET_MODULE_RONX to the ARM debugging Kconfig.
When turned on, data sections for modules will be marked as NX
and read only sections will be marked as such.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

This patch allows the kernel page tables to be dumped via a debugfs file,
allowing kernel developers to check the layout of the kernel page tables
and the verify the various permissions and type settings.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Add appropriate UART address definitions and support defines for using the
UARTs of the Freescale IMX50 SoC as debug ports.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

Add debug uart support for MSM8974. This patch adds a Kconfig
entry and the base address for the debug uart.
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Create the hidden config DEBUG_MSM_UART and clean-up
the default selection for CONFIG_DEBUG_LL_INCLUDE.
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

This implements output of debug messages on efm32 SoCs.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Add low-level debug support for vybrid, so that earlyprintk can be
enabled for debugging early boot issue.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

Support UART0 debug ll on Hisilicon Hi3620 SoC & Hi3716 SoC.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Section entries are 2MB on LPAE, so the DEBUG_LL virtual address must
have the same offset in the 2MB section as the physical address. This
fixes async external aborts when DEBUG_LL is enabled on Midway.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

DEBUG_UNCOMPRESS was previously disallowed for Tegra due to tegra.S's
use of global data that was not linked into the decompressor. Solve this
by declaring this symbol in tegra.S when it is being built into the
decompressor. For the kernel proper, leave the declaration in
mach-tegra/common.c as explained in the comment.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

The SPEAr debug code is a copy of the PL01x debugging code, so rather
than have this pointless code duplication, lets just use the standard
implementation instead.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Davinci's debugging is just a copy of the old 8250_32 code with a
different base address.  Incorporate this into the generic 8250
debug code.
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Keystone's debugging is just a copy of the old 8250_32 code with a
different base address.  Incorporate this into the generic 8250
debug code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Provide generic option choices for 8250 and PL01x UART ports; these can
now be selected by UART type rather than asking about the platform.
This means that a kernel configuration user can manually choose the
various parameters of the debug UART without resorting to the platform
having to encode the possible settings.

These two generic options are preferred over further debug entries for
these ports; the existing options which refer back to the 8250 and PL01x
ports are now considered deprecated.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Now that the PL01X debug include can mostly stand alone without
requiring platforms to provide any macros, move it into the debug
directory so it can be directly included.  This allows us to get rid of
a lot of debug-macros include files.

The autodetect case for Versatile Express and the ux500 are left alone;
these are more complicated implementations.
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Move the definition of the UART register addresses out of the platform
specific header files into the Kconfig files.
Acked-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Add 32-bit word access support to debug/8250.S and convert Picoxcell
and SoCFPGA to this.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Now that the 8250 debug include can stand alone without requiring
platforms to provide any macros, move it into the debug directory
so it can be directly included.  This allows us to get rid of a lot
of debug-macros include files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Move the definition of the UART register addresses out of the platform
specific header file into the Kconfig files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Move the definition of the UART register shift out of the platform
specific header file into the Kconfig files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Move the definition out of the machine class debug-macro.S header
into the Kconfig files.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

It is silly to bury UART selection under multiple levels of choice
statements, where the top level choice statement will only list
about four entries when a single SoC is selected.  Move the UART
selection up into the top level choice statement as it was always
intended to be.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

The DEBUG_LL_UART_NONE option was moved from the top of the list to
the bottom - unfortunately, it still referred to the options "below"
rather than "above".
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

One more step to allowing MSM to participate in the
multi-platform defconfig.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[davidb: Comment cleanup requested by sboyd]
Signed-off-by: David Brown <davidb@codeaurora.org>

This non-user visible option lacked any kind of documentation.  This
is quite common for non-user visible options; certian people can't
understand the point of documenting such options with help text.

However, here we have a case in point: developers don't understand the
option either, as they were thinking that when the option is not set,
the decompressor should produce no output what so ever.  This is
incorrect, as the purpose of this option is to control whether a
multiplatform kernel uses the kernel debugging macros to produce
output or not.

So let's document this via help rather than commentry to prevent others
falling into this misunderstanding.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

This was accidentally added in the wrong place, messing
up the ordering of the file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This patch adds low level debug uart support to sti based SOCs.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>

This patch adds support for the TI-Nspire platform.

Changes between v1 and v2:
* Added GENERIC_IRQ_CHIP to platform Kconfig
Signed-off-by: Daniel Tang <dt.tangr@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Uarts on all recent Rockchip SoCs are Synopsis DesignWare 8250 types.
Only their addresses vary very much.

This patch adds the necessary definitions to use any of the uart ports
for early debug purposes.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Texas Instruments Keystone family of multi-core devices are
based on ARM Cortex A15. Patch adds basic definitions for a
new Keystone sub-architecture in ARM.

The TCI66xxK2H Communications Infrastructure Keystone SoCs
are member of the C66x family based on TI's new KeyStone 2
multi-core SoC Architecture designed specifically for high
performance wireless and networking infrastructure applications.
The SOCs contains many subsystems like Cortex A15 ARM CorePacs,
C66XX DSP CorePacs, MSMC memory controller, Tera Net bus,
IP Network, Navigator, Hyperlink, 1G/10G Ethernet, Radio layers
and queue based communication systems.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: arm@kernel.org
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>

This moves the U300 debug macro to the debug headers to
make way for multiplatform support.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Enable low-level debug support for i.MX6 SoloLite by adding the debug
port definitions for the SoC.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

In order to support both old and new bootloaders, we add a new Kconfig
option for the earlyprintk UART selection. The existing option allows
to work with old bootloaders (that keep the internal registers mapped
at 0xd0000000), while the newly introduced option allows to work with
new bootloaders (that remap the internal registers at 0xf1000000).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

The Cortex-R series processors on Versatile Express have a different memory
map to the RS1 and CA9X4 tiles. Most of the platform difference can be
expressed in device-trees, but the UART definitions for LL_DEBUG cannot.

This patch defines the UART location for R-Series processors on
versatile-express, allowing low-level debug and output from the decompressor.
These definitions are selectable via Kconfig
Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
CC: Pawel Moll <pawel.moll@arm.com>

The move is necessary to support early debug output on exynos
with multiplatform configurations. This implies also moving the
plat/debug-macro.S file, but we are leaving the remaining users of that
file in place, to avoid adding large numbers of extra configuration
options to Kconfig.debug
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The i.MX6 DualLite/Solo is another i.MX6 family SoC, which is highly
compatible with i.MX6 Quad/Dual.  And that's why we choose to support
it using imx6q code with cpu_is_imx6dl() check when necessary.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>