The PL310 integrated on i.MX6 series and VF610 are revision r3p1 and
later.  Per ARM PL310 errata document, 588369 is fixed in r2p0 and
727915 is fixed in r3p1.  Neither is needed for i.MX6 or VF610.  So
let's drop them.
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Add EDMA for DMA support for Vybrid SoCs. Also add printk time.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

SSI and SSI_IPG are clocks controlled by the same clock gating field, so
register them with imx_clk_gate2_shared.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Signed-off-by: NSilvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Enable STMPE gpio support as this is used on MX6 Data Modul edm-qmx6
board.
Signed-off-by: NSilvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Otherwise GCC will mark the .init.rodata section R/W, which causes
a compile error once we add other real R/O data.
Signed-off-by: NLucas Stach <l.stach@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

It is only the mx6quad variant that can run up to 1.2GHz, so add the check
accordingly.

This avoids getting the following warning on a mx6solo:

failed to disable 1.2 GHz OPP
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Allow USB device to work by default.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Replace .init_time() hook with of_clk_init() for DT targets.

Based on:
  d4347ee ARM: i.MX27 clk: Use of_clk_init() for DT case
Signed-off-by: NDenis Carikli <denis@eukrea.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

The gpt0 timer clock has been wrong since:
  6bbaec56 ARM i.MX25: implement clocks using common clock framework
Signed-off-by: NDenis Carikli <denis@eukrea.com>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch adds devicetree support CCM module for i.MX21 CPUs.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This is a cleanup for i.MX21 clk driver. This change includes:
- Reduce license text.
- Remove unused definitions.
- Remove unused #include and sort the rest.
- Remove useless comment.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch removes clk_register_clkdev() for the clocks that do not
have any users for boards and drivers.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

This patch perform rework i.MX21 clock initialization. This includes
adding missing clocks and sort clocks by register address.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

mx51 and mx53 are device tree only platforms, so we no longer need all these
calls to clk_register_clkdev().

Only keep cpu0 and gpc_dvfs clk_register_clkdev() calls.

Tested on imx51-babbage and imx53-qsb boards.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

Add standby mode support for suspend, to enter standby mode:

echo standby > /sys/power/state;

Use UART or RTC alarm to wake up system, when system enters
standby mode, SOC will enter STOP mode with ARM core kept
power on and 24M XTAL on.
Signed-off-by: NAnson Huang <b20788@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

According to hardware design, mem bit must be clear before
entering DSM mode, as ARM core will be power gated in DSM mode.
Signed-off-by: NAnson Huang <b20788@freescale.com>
Signed-off-by: NShawn Guo <shawn.guo@freescale.com>

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>