LICENSES: Add MIT license ...

This license is relevant for commands/2048.c (at least).

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

Add magicvar description for autoboot variables ...

global.autoboot_abort_key and global.autoboot_timeout lack a magicvar
description. Add one.

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

ppc: Test for compiler options ...

The -mno-spe and -mspe=no options are not available on all compilers.
Call cc-option to set them only when they exist.

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

dtc: remove redundant YYLOC global declaration ...

Same as the upstream fix for building dtc with gcc 10.

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

Documentation: kvx: add first documentation ...

Add documentation on kvx architecture and kalray k200 board.

Signed-off-by: Clement Leger <cleger@kalray.eu>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: dts. i.MX7: add stopgap solution for barebox UART clock breakage ...

Commit 8b2104d740 ("driver: Call of_clk_set_defaults for each probed device")
made barebox act on the assigned-clock-parents property everywhere, not
only for clock provider nodes. This breaks at least the serial console on
the i.MX7 SabreSD board; only garbage is output if the patch is not
reverted. As stopgap measure, override these properties for all enabled
uart nodes in the barebox i.MX7 device tree. This reverts the behavior
to what it was like before the offending commit.

This is of course no real solution, as obviously Linux was fine dealing
with these properties before. But this hack should at least fix the
serial console for the boards that were broken in v2020.03.0.

When a proper fix follows, this patch can be reverted.

Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/zynq'

Merge branch 'for-next/zii'

Merge branch 'for-next/usb'

Merge branch 'for-next/spi'

Merge branch 'for-next/pwm'

Merge branch 'for-next/nfs'

Merge branch 'for-next/net'

Merge branch 'for-next/misc'

Merge branch 'for-next/layerscape'

Merge branch 'for-next/kalray-coolidge'

Merge branch 'for-next/dts'

Merge branch 'for-next/dfu'

Merge branch 'for-next/at91-clk'

Merge branch 'for-next/arm'

clk: at91: sckc: fix off-by-1000 in udelay() ...

SECOND is the number of nanoseconds in a second, but we need
the number of microseconds for use in udelay. Use USEC_PER_SEC.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: port Linux v5.6 SAM9X60 (new ARM926EJ-S) clock support ...

During a bug hunt that ultimately turned out unrelated to the state
of the barebox at91 clk driver, I synchronized its state with Linux v5.6.

Bug fixes and clean up to minimize the diff were split out in separate
prior commits.  This last commit imports the rest, which is basically
support for Microchip's new ARM926EJ-S SoC, the SAM9x60.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: add sama5d2 audio PLL support ...

Commit 7310b976 ("clk: at91: fix compilation errors in sama5d2.c") and
follow-up commit ca3077068c ("clk: at91: delete dead i2s/audio code")
had deleted the i2s/audio clock related parts of the upstream driver.

This was mostly due to unwillingness on my part to understand the code
enough for porting them and because I deemed them unnecessary to support
in barebox. The former has changed and the latter is not totally true as
audio PLL derived clocks may be muxed as inputs for programmable and
generated clocks.

Port them over and mimize the diff to upstream.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: allow 24 Mhz clock as input for PLL ...

The PLL input range needs to be able to allow 24 Mhz crystal as input
Update the range accordingly in plla characteristics struct

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Link: https://lkml.kernel.org/r/1568183622-7858-1-git-send-email-eugen.hristev@microchip.com
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Fixes: c561e41ce4d2 ("clk: at91: add sama5d2 PMC driver")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
[afa: ported to barebox from Linux commit 81a6b601f9f49]
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: Mark struct clk_range as const ...

It's just some static data that doesn't get changed after being used.
Mark it const everywhere.

Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
[afa: ported to barebox from Linux commit 7b4c162e03d47e0]
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: add __init marker where appropriate ...

While redundant in barebox, it makes our diff to the upstream driver
smaller when synchronizing, so add it back.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: compile dt-compat for all platforms that require it ...

We have so far compiled in dt-compat only for CONFIG_SOC_SAMA5D3,
but we require it for device tree support of CONFIG_SOC_AT91SAM9
as well. Fix this.

While at it move around the obj- rules a bit to minimize the diff to
upstream.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: delete no-longer required DT compat code ...

Unlike Linux, we don't require barebox drivers to support old device
tree bindings. Following device tree compatibles are no longer present
in barebox latest import of dts/:

 * atmel,sama5d2-clk-generated
 * atmel,sama5d4-clk-h32mx
 * atmel,at91sam9g45-clk-pll
 * atmel,at91sam9g20-clk-pllb
 * atmel,at91sam9260-clk-slow

Drop their compat code.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: fix possible deadlock ...

Lockdep warns about a possible circular locking dependency because using
syscon_node_to_regmap() will make the created regmap get and enable the
first clock it can parse from the device tree. This clock is not needed to
access the registers and should not be enabled at that time.

Use the recently introduced device_node_to_regmap to solve that as it looks
up the regmap in the same list but doesn't care about the clocks.

Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lkml.kernel.org/r/20191128102531.817549-1-alexandre.belloni@bootlin.com
Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
[afa: ported to barebox from from Linux commit 6956eb33abb5dea]
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: at91: fix masterck name ...

The master clock is actually named masterck earlier in the driver. Having
"mck" in the parent list means that it can never be selected.

Fixes: 1eabdc2f9dd8 ("clk: at91: add at91sam9x5 PMCs driver")
Fixes: a2038077de9a ("clk: at91: add sama5d2 PMC driver")
Fixes: 084b696bb509 ("clk: at91: add sama5d4 pmc driver")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: <stable@vger.kernel.org> # v4.20+
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
[afa: ported to barebox from Linux commit 65a91e2e597dea]
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>