The default debug level tends to clutter all connected terminals...

The recipes are taken from the https://github.com/nxp-imx/imx-manifest
bbd8ab1 imx-linux-mickledore  imx-6.1.55-2.2.0_desktop.xml: Add LDP Q4 manifest
bsp.

Mikhail Vanyulin authored 1 year ago and Jonas Höppner committed 1 year ago

Save the value of TIE bit value before resetting CONTROL_STATUS_2 register in
probe() routine of PCF8563 driver. Otherwise, a bootselect functionality stops
working because it stores some information across reboot in RTC registers.

Signed-off-by: Mikhail Vanyulin <mikhail.vanyulin@rtsoft.de>

The tools recipes still use SSH as protocol for the checkout.
Since we have opend our repository to the public, SSH isn't available
anymore. Because of this, we switch to HTTPS as protocol.

Also updated the URLs in the recipes.

The license file for GPLv2 was renamed to GPL-2.0-only.
Changed to the new file and new hash.

* Conversion of the OVERRIDE syntax
* New folder names for NXP specific folders

For NXP changes see the new MACHINE_OVERRIDES mechanism

Builds of commits that are not merged yet (in a merge request) fail if
nobrach=1 is not set, as they are not found on the specified branch,
even if the revision is specified in SRV_REV explicitly.

Due to the kernel upgrade we need to update modules as well.
Modifies by comparing the rtc-pcf8563-guf with the mainline version.

The function devm_rtc_register_device() was introduced in 5.11, thus
create add a version check.

BCS 746-000730

BCS 746-000629

Update to use the recent proc_ops.
Fix possible buffer overflow: The bounds were checked by the complaining
compiler, so I do not deserve credit.

Harmonize the recipes and Makefiles for imx6-spreadspectrum and
rtc-pcf8563-guf.

The imx6-spreadspectrum is still not installed by default for imx6(ull)
devices.

BCS 746-000453

Adds the G&F iMX6 spread spectrum module.
Pulled version c8281e68 from the G&F
rocko port.

Does not build yet due to kernel 4.1 to 5.10 incompatibilities.

BCS 746-000453

Cleanup include files as the conf/guf-recipe file is going to be
removed.

BCS 746-000245

* Move sources of the gfplatdetect module to it's own repository

Add the NALLINO platform detection code including the PAD multiplexing
and the enable pin.

The gfplatddetect implements the Garz & Fricke specific platform
detection mechanism. It simply reads some GPIO pins that are pre defined
at the time of production to determine the board model and the board
revision.

The NALLINO implementation, however, is somewhat special. It uses the
same SoC pads for the display output. Thus it needs to define the
display pinctl as default.

When probed the gfplatdetect switches the pinctrl ("pfid") if available and
enables the optional enable-gpio pin. It reads the GPIO values, disables the
enable-gpio again and re-muxes the pinctl back to "default".

BCS 746-000095

Add a platform abstraction layer to be able to add a whole different
platform like NALLINO.

The current implementation was based on the Flash-N-Go Boot and the
previous Linux implementation for the Garz & Fricke SAN* platforms.

This however does not fit into for the NALLINO board and thus we need
new function for the new board. To be able to add a new platform
introduce the struct gfplatdetect_platform that abstracts platform
specific read function of the PFID pins and their evaluation.

Many refactoring changes were made to make the code more readable and
better structured.

Right now the NALLINO/iMX6ULL is not yet implemented.

* The recipe for rtc-pcf8563-guf module needs to have RRPROVIDES set, so
it is known to the buildsystem with the 'kernel-module' prefix

Somehow the Garz & Fricke specific PCF8563 driver rtc-pcf8563-guf was
not buildable.

On cause was a missing and unused config.h file. Remove this file from
the recipe.

Another error was due to the removal of the register resets in the
PCF8563 that should be prevented by the driver. However the buffer
variable is used later on so we cannot comment it out.

The Flash-N-Go Boot bootloader propagates its version using ATAGS.
ATAGS, however, will be destroyed after bootup if an appended device tree
was found. Thus it needs to be saved to the device tree by the kernel
before.

Souch a kernel patch has been added and now get the FnGBoot info from
the device tree.

The Device Tree entry used for this is FnGBoot agnostic and was called
"atag-revision".

This commit establishes a working module and adds the real code to detect the
platform and to propagate the platform to the /proc/cpuinfo file.
The platform detection module is meant to replace the previous platform
detection code in the imx6 board file.

The kernel, however, needs some adaptions namely the exported symbols for
the system_rev, board_rev, fngboot_rev and macghine_name.
These are defined in arc/arm/kernel/setup.c and are meant to be
displayed via the /proc/cpuinfo file.

The other explicit exports are imx_get_soc_revision and a new function
mxc_get_cpu_type which returns the __mxc_cpu_type variable.

The main parts are taken from the previous implementation in the current
rocko G&F kernel and from the Flash-N-Go Boot board detection code.

Read the "pfid-gpios" from the device tree entry to get the correct
GPIOs. This prevents the need for gpio definitions in this driver.

Backup the previous information in case we want to unload the driver.
Do this mainly for the machine_name string to prevent a dangling
string pointer.

Add another new sysfs interface to read the board and board revision.
This might deprecate the /proc/cpuinfo part so that we do not have to
touch it in the future anymore.
And with teh sysfs we get a consistent method to propagate G&F specific
board information.

Right now only the imx6qdl (San*) platforms are supported. The imx6ull
devices (NALLINO) are not yet supported.

* disable TIMER_CONTROL register TD[1:0] bit configuration in PCF8563 driver
  probe since we use that bits for bootselect

* Pull the rtc-pcf8563.c source from the kernel-tree at v5.4.23
 (bfe3046ecafdd71ba6932deebe2eb357048b7bfc)
* Remove the in-tree driver from the defconfig
* Add the module to the MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS for san* and
nallino platforms