When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
Currently, drive-strenght to 12ma are described and supposed to be used
on RK3288. However, the pinctrl driver for this SoC only handles muxing
and pull up/pull down via PU/PD control registers. So complex IPs like
GMAC are working in normal ethernet 100mbps, but not at 1gbps typically.
This commit adds support for handling drive-strength of 12ma, when it's
defined in the DT.
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This reverts TXCLK toggling that was accidently dropped while reworking
commit 2454b719fb ("rockchip: rk3288: Add pinctrl support for the gmac
ethernet interface"). So the TX clock is enabled and we can use
GMAC_ROCKCHIP in 1Gbps when basic PINCTRL support is enabled
(!PINTRL_FULL).
Fixes: 2454b719fb ("rockchip: rk3288: Add pinctrl support for the...")
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
We should not handle this pin explicitly from pinctrl. GMAC driver takes
care of it by using a "reset-gpio" in the DT.
This commit removes pull up for GPIO4B0.
Fixes: 2454b719fb ("rockchip: rk3288: Add pinctrl support for the...")
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Add support for the gmac ethernet interface to pinctrl. This hardcodes
the setup to match that of the firefly and Radxa Rock2 boards, using the
RGMII phy mode for gmac interface and GPIO4B0 as the phy reset GPIO.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Romain Perier <romain.perier@collabora.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
With the new dev_read functions available, we can convert the rockchip
architecture-specific drivers and common drivers used by these devices
over to the dev_read family of calls.
This change covers the pinctrl drivers for the Rockchip devices.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.
Signed-off-by: Simon Glass <sjg@chromium.org>
Bank 0 is the "PMU GPIO" bank which is controlled by the PMU registers
rather than the GRF registers. In the GRF the top half of the register
is used as a mask so that some bits can be updated without affecting the
others, but in the PMU this feature is not provided and the top half of
the register is reserved.
Take the same approach as the Linux driver to update the value via
read-modify-write but setting the mask for only the bits that have
changed. The PMU registers ignore the top 16 bits so this works for
both GRF and PMU iomux registers.
Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Quite a few places have a bind() method which just calls dm_scan_fdt_dev().
We may as well call dm_scan_fdt_dev() directly. Update the code to do this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for of-platdata with rk3288. This requires disabling access to
the device tree and renaming the driver to match the string that of-platdata
will search for.
Signed-off-by: Simon Glass <sjg@chromium.org>
The rgmii_pins node in rk3288.dtsi configures 15 pins. Increase the size
of the cell array to accomedate that, otherwise only the first 10 get
configured.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Simon Glass <sjg@chromium.org>
Since the device tree does not specify the EDID pinctrl option for HDMI we
must set it manually. Fix the driver to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Implement this so that the GPIO command will be able to report whether a
GPIO is used for input or output.
Signed-off-by: Simon Glass <sjg@chromium.org>
This file has many features that are not needed by SPL. Use #ifdef to
remove the unused features and reduce the code size.
Signed-off-by: Simon Glass <sjg@chromium.org>
We can make use of the device tree to configure pinctrl settings. Add this
support for the driver so we can use it in U-Boot proper.
Signed-off-by: Simon Glass <sjg@chromium.org>
This is easier to deal with when using generic code since it allows us to
use a register index instead of naming each register.
Adjust it, adding an enum to improve readability.
Signed-off-by: Simon Glass <sjg@chromium.org>
Commit c5acf4a2b3 ("pinctrl: Add the concept of peripheral IDs")
added some additional change that was not mentioned in the git-log.
That commit added dm_scan_fdt_node() in the pinctrl uclass binding.
It should be handled by the simple-bus driver or the low-level
driver, not by the pinctrl framework.
I guess Simon's motivation was to bind GPIO banks located under the
Rockchip pinctrl device. It is true some chips have sub-devices
under their pinctrl devices, but it is basically SoC-specific matter.
This commit partly reverts commit c5acf4a2b3 to keep the only
pinctrl-generic features in the uclass. The dm_scan_fdt_node()
should be called from the rk3288_pinctrl driver.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
