Instead of using enum for clock ID, let's switch imx6qdl clock driver to
use macro.  In this case, device tree can reuse these macros to improve
readability.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Add cpuidle support for i.MX6SX, derive from i.MX6Q's
cpuidle, two levels supported:

1. WFI;
2. WAIT mode.
Signed-off-by: NAnson Huang <b20788@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Add suspend support for i.MX6SX.

To enter suspend, echo mem > /sys/power/state.
To exit suspend, using RTC alarm or enable debug UART wakeup.
Signed-off-by: NAnson Huang <b20788@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The board has no insufficient support to be fully functional and seems
has no users. This patch removes support for this board. However, the
support may be added in the future by using the devicetree.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch adds a reset fallback if base address of watchdog is not set.
This is intended for a targets not compatible with imx-21 watchdog,
i.MX1 for example.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch simplifies handling watchdog clock a bit.
As an additional change, now we properly check WDT clock in a reset
function.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Let mx6sx be built by default.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch moves clock check function in common i.MX location
and switch i.MX clk drivers to use this new function.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Replace .init_time() hook with of_clk_init() for DT targets.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch separates DT and non-DT clock initialization procedure,
so we can avoid a lot of unneeded clk_register_clkdev() for DT case.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Base address for driver is global, there are no need to use
intermediate variable for it.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Use of_clk_get_by_name() for timer clocks for DT case.
This patch eliminates a lot of unneeded clk_register_clkdev()
calls for GPT.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

CONFIG_FHANDLE=y is needed when running systemd with version >=210, so that it
can spawn a serial tty via getty.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Now all the macros in mx51.h and mx53.h are used nowhere, so remove
them.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The mx51_display_revision() is a dead declaration.  Remove it.  Also,
move mx51_revision() into common.h.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The only code left in mm-imx5.c is to create static mapping.  While all
IMX platform code are moved to use dynamic mapping, the file can just be
removed now.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

These imx5 init_early[late] hooks are called only from mach-imx5x.c.
Let's move them into mach-imx5x.c.

While at it, replace the static mapping in imx51_ipu_mipi_setup() with
dynamic mapping.  Also this function and imx_src_init() do not
necessarily to be called at .init_early hook, so move them into
.init_machine.

The mxc_iomux_v3_init() is dropped from imx51_init_early() in the
moving, since it's only needed by non-DT boot.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The imx5 pm code uses static mapping to access Cortex and GPC registers.
The patch create struct imx5_pm_data to encode physical address of
Cortex and GPC block, and create dynamic mapping for them at run-time.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The imx5 pm code needs to access CCM registers.  Let's remove the use
of CCM static mapping in pm code by reusing the dynamic mapping created
in clock code.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Replace the static mapping of DPLL block with dynamic mapping by
calling ioremap().  Ideally, this should be done by calling of_iomap(),
so that the physical address of DPLL can also be retrieved from device
tree.  But unfortunately, DPLL blocks are not defined in DT in the first
place.  So to maintain the compatibility of existing DTB, we use
ioremap() with physical address defines in the code.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Replace the static mapping of CCM block with dynamic mapping and
retrieve CCM base address from device tree.  Though it's not nice to
encode the variable ccm_base in macros, it helps to avoid a massive
churn on the code.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Most of the macros in crm-regs-imx5.h are used nowhere.  Let's move the
needed ones into the C files, and remove the header.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Instead of using static define and mapping, the patch changes imx5 code
that reads chip revision from IIM to retrieve base address from device
tree and use dynamic mapping.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Since i.MX51 supports DT only, it's more appropriate to call
mxc_timer_init_dt() than mxc_timer_init() to initialize timer.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The function imx51_soc_init() was used by non-DT boot only.  Since
i.MX51 supports DT only, the function can be removed now.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

After i.MX51 supports DT only, tzic_init_irq() can figure out the
tzic_base on its own.  Thus, it can directly be .init_irq hook, and
mx51[53]_init_irq() can be saved.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The function mx5_clocks_common_init() was created with a number of
arguments to pass oscillator clock rate in non-DT boot.  Since i.MX5
is DT only platform, the arguments can be dropped, and the clock rate
can just be retrieved from device tree.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Since i.MX51 becomes a DT only platform, we can make mx51_clocks_init()
a DT call and save function mx51_clocks_init_dt() now.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

i.MX5 is DT only platforms, so these non-DT device registration helpers
is used nowhere.  Remove them.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Since i.MX51 becomes a DT only platform, those non-DT support files can
be removed now.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Since i.MX51 becomes DT only now, we can drop option MACH_IMX51_DT and
just use SOC_IMX51 instead.  While at it, rename imx51-dt.c to
mach-imx51.c to align with the name schema of other IMX DT only
platforms.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

After moving SOC_IMX51 support over to device tree, all i.MX5 support
becomes device tree only now.  So options SOC_IMX5 and SOC_IMX51 can
just be under 'Device tree only'.

While at it, 'select ARCH_MXC_IOMUX_V3' is dropped, since it's only
needed by non-DT build before.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The platform_data header usb-ehci-mxc.h has a lot of stuff used by only
IMX platform code.  They shouldn't be really in this header but a IMX
platform local header.  Create ehci.h and move these stuff into it.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

imx_udc driver was removed from the kernel of about 10 months ago.
This patch removes a registration helper for this driver and
orphaned driver header.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch adds devicetree support CCM module for i.MX1 (MC9328MX1) CPUs.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

None of the defines "for modules using static and dynamic DMA channels"
are used. Remove these.
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

No reason to choose a symbol HAVE_IMX_SRC separately for each supported
i.MX5 CPU, this patch selects this symbol globally for i.MX5.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The i.MX6 reference manual doesn't make a clear distinction
between the fixed clock divider and the enable gate for the
pcie and sata reference clocks. This lead to the lvds mux
inputs in the imx6q clk driver to be parented from the
ref clock (which is the divider) instead of the actual gate,
which in turn prevents the upstream clock to actually be
enabled when lvds clk out is active.

This fixes a hard machine hang regression in kernel 3.16 for
boards where only pcie is active but no sata, as with this
kernel version the imx6-pcie driver is no longer enabling
the upstream clock directly but only lvds clk out.
Reported-by: NArne Ruhnau <arne.ruhnau@target-sg.com>
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Tested-by: NArne Ruhnau <arne.ruhnau@target-sg.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

On the syscall tracing path, we call out to secure_computing() to allow
seccomp to check the syscall number being attempted. As part of this, a
SIGTRAP may be sent to the tracer and the syscall could be re-written by
a subsequent SET_SYSCALL ptrace request. Unfortunately, this new syscall
is ignored by the current code unless TIF_SYSCALL_TRACE is also set on
the current thread.

This patch slightly reworks the enter path of the syscall tracing code
so that we always reload the syscall number from
current_thread_info()->syscall after the potential ptrace traps.
Acked-by: NKees Cook <keescook@chromium.org>
Tested-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Commit 1c2f87c2 (ARM: 8025/1: Get rid of meminfo) changed find_limits
to use memblock_get_current_limit for calculating the max_low pfn.
nommu targets never actually set a limit on memblock though which
means memblock_get_current_limit will just return the default
value. Set the memblock_limit to be the end of DDR to make sure
bounds are calculated correctly.
Signed-off-by: NLaura Abbott <lauraa@codeaurora.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>