Commit Graph

9 Commits

Author SHA1 Message Date
Ian Lepore
1f23f8b0fe Make the trivial imx_soc_family() function an inline in imx_machdep.h.
The imx_machdep.c file is on the fast path to non-existance and this would
be the only thing left in it after some watchdog changes are completed.
2018-01-24 18:10:11 +00:00
Pedro F. Giffuni
af3dc4a7ca sys/arm: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:04:10 +00:00
Ian Lepore
c1411a76e5 Add code/constants for detecting imx6ul (ultralite) chips, a species of
imx6 based on a single cortex-a7 core.  Other changes to imx6 drivers
and support code are needed to fully support the imx6ul.

Also fix an indentation glitch committed in the prior change.
2017-04-09 20:59:12 +00:00
Ian Lepore
bd6b2f9bef Rename sysctl node hw.imx6 to hw.imx. Move its definition to imx_machdep.c
so that code shared between imx5 and imx6 can work with OIDs under that node.

Add last_reset_status (integer) and last_reset_reason (string) OIDs that
provide info about the last chip reset (power-on, software reset, watchdog
timeout).
2015-11-26 17:26:52 +00:00
Ian Lepore
a7fa939bb3 Stop calling imx51_ccm_foo() clock functions from imx6 code. Instead
define a few imx_ccm_foo() functions that are implemented by the imx51 or
imx6 ccm code.  Of course, the imx6 ccm code is still more a wish than
reality, so for now its implementations just return hard-coded numbers.
2014-04-26 16:48:09 +00:00
Ian Lepore
f688503cc4 Remove a couple obsolete function declarations. 2014-02-13 19:14:23 +00:00
Ian Lepore
f955880f7b Revamp the SoC identity numbering scheme to be more in line with the way
Freescale numbers the chips in the ID registers.
2013-10-31 23:05:05 +00:00
Ian Lepore
baf7f63f9a Add some bare-bones support for enabling usb and usbphy clocks. This
is temporary code to keep imx development moving forward for now.  In
the long run we need a SoC-independant clock management API.
2013-10-30 14:33:15 +00:00
Ian Lepore
ec4081c10a Maximize available kva space by doing static device mapping from the top
of the address space downwards, and then returning the lowest mapped
device address from initarm_lastaddr().  This adds over 500MB of kva
space compared to the old way of hardcoding the end address as 0xE0000000.

Also, pre-map most of the SoC's common memory-mapped devices using 1MB
section mappings so that all device access uses just a few TLB entries.
Graphics devices aren't mapped this way yet, but probably should be.

To provide this new functionality without pasting identical code into
multiple imxNN_machdep.c files, rework the imx machdep code so that
things common to the whole family of SoCs are in a new imx_machdep.c file.
The rewritten imxNN_machdep.c files contain just things specific to an
individual SoC.
2013-10-26 23:13:20 +00:00