The Qualcomm device trees in U-Boot are currently not consistent with
the upstream DTs used in the Linux kernel. While some bindings are
similar to the official specification in the Linux kernel, several
nodes have subtle differences, e.g. the "compatible"s or the exact
specification of memory registers.
This means that some of the Qualcomm-related U-Boot drivers are not
compatible with the Linux DT (and vice versa).
The SPMI node is one such example: the "core" region starts at
0x0200f000 in the upstream Linux MSM8916 DT, but in U-Boot it starts at
0x0200f800. The end result is normally the same, since the Linux SPMI
driver simply adds the 0x800 internally.
However, commit f5a2d6b4b0 ("spmi: msm: add arbiter version 5
support") imported this behavior into the U-Boot driver, without
adjusting the DB410c/DB820c device trees. This means that the 0x800
offset is now added twice, breaking all SPMI read/write operations:
Failed to find PMIC pon node. Check device tree
Failed to find pm8916_gpios@c000 node.
USB init failed: -6
starting USB...
Bus ehci@78d9000: Failed to find pm8916_gpios@c000 node.
probe failed, error -6
No working controllers found
While the mistake is strictly speaking in the spmi-msm driver, fix the
issue by making the SPMI nodes in the DB410c/DB820c consistent with the
upstream Linux DT instead.
Ideally we should even go a step further by fixing the remaining uses
of custom bindings in the U-Boot drivers and moving to using the Linux
DTs as-is. This would likely avoid such mistakes in the future and
would also make the porting process much easier.
Cc: Dzmitry Sankouski <dsankouski@gmail.com>
Fixes: f5a2d6b4b0 ("spmi: msm: add arbiter version 5 support")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
It looks like SD card detection is broken at the moment for DB410c.
The eMMC is detected correctly, but the SD card is not.
This is probably similar to the issue fixed in commit 8505147403
("mmc: msm_sdhci: Use mmc_of_parse for setting host_caps") for eMMC,
except that the SD card does not have a property like "non-removable"
that skips the card detection.
The SDHCI on DB410c cannot detect itself if a SD card is inserted,
so add the necessary cd-gpios to make SD card detection work again.
While at it, fix the #gpio-cells for the soc_gpios to avoid DTC
warnings - the soc_gpios are actually already used with two cells
for the gpio-leds so this was just wrong all the time.
Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
The clock node is used by the serial driver and it's needed
before relocation.
This patch ensures that the msm-serial driver can actually
use the clock node.
Signed-off-by: Ramon Fried <ramon.fried@linaro.org>
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>
If lk lights up display and populates simple-framebuffer node, it will
also setup a reserved-memory node (needed by simplefb on linux). But
it isn't clever enough to cope when the reserved-memory node is not
present.
Signed-off-by: Rob Clark <robdclark@gmail.com>
The firmware that runs before u-boot modifies u-boot's device tree
adding the local-mac-address and local-bd-address properties for the
compatibles "qcom,wcnss-bt" and "qcom,wcnss-wlan".
This commit reads that firmware, retrieves the properties and fixups
the device tree that is passed to the kernel before booting.
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
This commit add support for 96Boards Dragonboard410C.
It is board based on APQ8016 Qualcomm SoC, complying with
96boards specification.
Features (present out of the box):
- 4x Cortex A53 (ARMv8)
- 2x USB Host port
- 1x USB Device port
- 4x LEDs
- 1x HDMI connector
- 1x uSD connector
- 3x buttons (Power, Vol+, Vol-/Reset)
- WIFI, Bluetooth with integrated antenna
- 8GiB eMMC
U-Boot boots chained with fastboot in 64-bit mode.
For detailed build instructions see readme.txt in board directory.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Tested-by: Simon Glass <sjg@chromium.org>
