Depending on the application, board code might want to configure
different power levels and brownout thresholds. They can do so now with
an additional struct mxs_power_ctrls* parameter to mx2*_power_init.

Note that VDDMEM was not set up explicitely in mx28_power_init, but can
now be configured. However, mx28_power_default->vddmem is NULL, so the
old behaviour is still the case when using those default values.

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Some boards don't need the 4.2V power source at all, so allow them to
keep it disabled for efficiency reasons.

For backwards compatibility, don't disable the 4P2 power source on the
existing boards which are supplied from battery input.

The POWER_USE_5V code path however always enables it up as it is needed
to supply the DC-DC converter.

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Having three ints as parameter suggests that we can use up to 2^3
power configurations for the system, but when we look at the code, the
power setup is packaged in if {...} else if {...} else if {...} blocks,
so setting more than one parameter to 1 is useless here.

Refactor the parameters into an enum to get rid of that suggestion.

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Allow to set not only the fractional divider, but also the prescaler for
the EMI clock in mxs_mem_init_clock(), and rename the parameters
accordingly to reflect the change. Port the existing board code to set
up the EMI clock explicitely with the old values. Also fix the
off-by-a-half error in the comments, which did not take the prescaler of
2 into account, on which the fractional divider is applied (according to
the i.MX23/i.MX28 Reference Manuals)

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

The PINCTRL_*_DDR_MODE_* defines are now needed in global scope, so move
them to the respective include header.

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Rename the already global array of default memory settings to make the
intended usage more obvious.

Also make generous use of the const keyword.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Instead of introducing new functions each time a new power supply
situation is to be added, this patch adds parameters to mx28_power_init.

Right now there are three parameters:

- has_battery - true when this board has a battery.
- use_battery_input - true when this board is supplied from the
  battery input, but has a DC source instead of a real battery
- use_5v_input - true when this board can use the 5V input

The third one is introduced with this patch and allow to boot a board from 5v
(USB) source only. The main necessary change this needs is that the DC-DC
converter must always be sourced from DCDC_4P2 (DROPOUT_CTRL field of
HW_POWER_DCDC4P2)

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

This file originates in Linux.  Linux has it under include/linux/
directory since commit dccd2304cc90.
Let's move it to the same place as well in barebox.

This commit was generated by the following commands:

  find -name '*.[chS]' | xargs sed -i -e 's:<sizes.h>:<linux/sizes.h>:'
  git mv include/sizes.h include/linux/

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

- enable multiimage support to generate bootstream, sd-card and 2nd
  stage images
- Enable new defaultenv support
- Enable more features

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Mostly to make it clear that boarddata needs to be
something we can dereference.

As this is a pretty invasive change, use the opportunity
to make the signature 64bit safe.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

reset is confusing with the cpu reset and impossible to grep

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

All boards use hardcoded SDRAM addresses, copied from the board init file.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>