The syscon implementation in U-Boot is different from that in Linux.
Thus, DT files imported from Linux do not work for U-Boot.
In U-Boot driver model, each node is bound to a dedicated driver
that is the most compatible to it. This design gets along with the
concept of DT, and the syscon in Linux originally worked like that.
However, Linux commit bdb0066df96e ("mfd: syscon: Decouple syscon
interface from platform devices") changed the behavior because it is
useful to let a device bind to another driver, but still work as a
syscon provider.
That change had happened before U-Boot initially supported the syscon
driver by commit 6f98b7504f ("dm: Add support for generic system
controllers (syscon)"). So, the U-Boot's syscon works differently
from the beginning. I'd say this is mis-implementation given that
DT is not oriented to a particular project, but Linux is the canon
of DT in practice.
The problem typically arises in the combination of "syscon" and
"simple-mfd" compatibles.
In Linux, they are orthogonal, i.e., the order between "syscon" and
"simple-mfd" does not matter at all.
Assume the following compatible.
compatible = "foo,bar-syscon", "syscon", "simple-mfd";
In U-Boot, this device node is bound to the syscon driver
(driver/core/syscon-uclass.c) since the "syscon" is found to be the
most compatible. Then, syscon_get_regmap() succeeds.
However,
compatible = "foo,bar-syscon", "simple-mfd", "syscon";
does not work because this node is bound to the simple-bus driver
(drivers/core/simple-bus.c) in favor of "simple-mfd" compatible.
The compatible string "syscon" is just dismissed.
Moreover,
compatible = "foo,bar-syscon", "syscon";
works like the first case because the syscon driver populates the
child devices. This is wrong because populating children is the job
of "simple-mfd" (or "simple-bus").
This commit ports syscon_node_to_regmap() from Linux. This API
does not require the given node to be bound to a driver in any way.
Reported-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, regmap_init_mem() takes a udevice. This requires the node
has already been associated with a device. It prevents syscon/regmap
from behaving like those in Linux.
Change the first argumenet to take a device node.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
device_is_compatible() takes udevice, but there is no such a helper
that takes ofnode.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Putting zero length array at the end of struct is a common technique
to embed arbitrary length of members. There is no good reason to let
regmap_alloc_count() branch by "if (count <= 1)".
As far as I understood the code, regmap->base is an alias of
regmap->ranges[0].start, but it is not helpful but make the code
just ugly.
Rename regmap_alloc_count() to regmap_alloc() because the _count
suffix seems pointless.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: fixup cpu_info-rcar.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
This function is no more used, and replaced by psci_save
which save also context id as requested by PSCI requirements.
Even if the context id is not used by Linux, it should be saved
and restored in r0 when the CPU_ON is performed.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Replace the psci_save_target_pc call by the new function
psci_save(cpu, pc,context_id)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Replace the psci_save_target_pc call by the new function
psci_save(cpu, pc,context_id)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Add PSCI v1.0 support for Linux and manage PSCI state
for each CPU (affinity 0 level) with all mandatory functions:
- PSCI_VERSION
- CPU_SUSPEND
- CPU_OFF
- CPU_ON
- AFFINITY_INFO
- SYSTEM_OFF
- SYSTEM_RESET
- PSCI_FEATURES
and 1 optional to avoid Linux warning
- MIGRATE_INFO_TYPE
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: CITOOLS <smet-aci-reviews@lists.codex.cro.st.com>
The added function psci_arch_cpu_entry() is called
during psci_cpu_entry() and can be used by arch to handle
PSCI state transition from ON_PENDING to ON.
The default weak function is empty: not behavior change.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Save and use the 3rd parameter of PSCI CPU_ON request: context_id.
The context_id parameter is only meaningful to the caller.
U-Boot PSCI preserves a copy of the value passed in this parameter.
Following wakeup from a powerdown state, U-BOOT PSCI places
this value in R0 when it first enters the OS.
NB: this context id is not (yet?) used by Linux but it is mandatory
to be PSCI compliant.
update armv7 psci functions:
- psci_save_target_pc(): keep for backward compatibility with
current platform (only save PC and force context id to 0)
=> should be removed when all platform migrate to the new API
- psci_save(): new API to use by ARMv7 platform with PSCI,
save pc (= entry_point_address) and context_id
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
- Based on commit 08ae21af96 ("MAINTAINERS: Switch nxp.com domain")
update or drop some formerly Freescale addresses.
- Update a few aliases to reflect current custodians
Signed-off-by: Tom Rini <trini@konsulko.com>
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 multiple licenses (in
these cases, dual license) declared in the SPDX-License-Identifier tag.
In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A
or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B"
as per the Linux Kernel style document. Note that parenthesis are
allowed so when they were used before we continue to use them.
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
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>
Banana Pi BPI-M2 Berry is a quad-core mini single board computer
built with Allwinner V40 SoC. It features
- Quad Core ARM Cortex A7 CPU V40
- 1GB of RAM .
- microSD/SATA port..
- onboard WiFi and BT
- 4 USB A 2.0 ports
- 1 USB OTG port
- 1 HDMI port
- 1 audio jack
- DC power port
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
omap-common cache enabling sequence relies on cpu_init_cp15()
(inside start.S) for enabling I-caches. But cpu_init_cp15()
can be skipped if CONFIG_SKIP_LOWLEVEL_INIT is defined. So
enable I-caches if not enabled already.
Debugged-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Tested-by: Steve Kipisz <s-kipisz2@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Tested-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Building with verified boot support requires hash, add that
dependency here. Otherwise the following build error will come out
without crc command.
LD u-boot
lib/built-in.o: In function `hash_calculate':
lib/rsa/rsa-checksum.c:29: undefined reference to
`hash_progressive_lookup_algo'
...
make[1]: *** [u-boot] Error 1
Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
A common voltage of 1.35V was being programmed for all am43 board
versions. EPOS-EVM Needs 1.20V for LPDDR2.
Fixes: fc69d47262 (“board: ti: AM43XX: Add ddr voltage rail configuration”)
Reported-by: James Doublesin <doublesin@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
With tighter build flags the fact that <stdio_dev.h> doesn't have a
reference back to MAX_NAMES causes an error. Include <stdio.h> here and
then in common/console.c use MAX_NAMES rather than 3 when working with
stdio_names.
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
With tighter build flags the fact that this header referenced
uchar/ushort without including what typedefs it causes an error. Rather
than add another include here, drop the section in question as it is
unused.
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
The DEBUG macro is never defined unless explicitly enabled.
Drop useless #undef DEBUG in the board configs so it won't
spread any further.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Pull the symbol from the boards and zap struct rmobile_sysinfo as they
are rather useless. The entire purpose of that whole machinery was to
print board name in the CONFIG_ARCH_RMOBILE_BOARD_STRING. Do that in a
far simpler and more contained manner.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Convert the symbol to Kconfig, no functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Rename CONFIG_RMOBILE_BOARD_STRING to CONFIG_ARCH_RMOBILE_BOARD_STRING
to make things consistent, no functional change.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Synchronize the README with the current state of U-Boot, unify
the build instructions to avoid duplication.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
The R8A7792 does not have the USB extal, so drop it.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
freescale.com domain is no longer reachable, so switch the
maintainers' emails to nxp.com domain instead.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
The 'SDHCI_QUIRK_NO_HISPD_BIT' is used wrong here. The purpose of this
quirk is to tell the sdhci-driver that the IP-core doesn't have a "high-
speed-enable" bit in its registers.
With this commit we change this to the correct quirk:
SDHCI_QUIRK_BROKEN_HISPD_MODE
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Some IP-core implementations of the SDHCI have different troubles on the
silicon where they are placed.
On ZYNQ platform for example Xilinx doesn't accept the hold timing of an
eMMC chip which operates in High-Speed mode and must be forced to
operate in non high-speed mode. To get rid of this
"SDHCI_QUIRK_BROKEN_HISPD_MODE" is introduced.
For more details about this refer to the Xilinx answer-recor #59999https://www.xilinx.com/support/answers/59999.html
This commit:
- doesn't set HISPD bit on the host-conroller
- reflects this fact within the host-controller capabilities
Upon this the layer above (mmc-driver) can setup the card correctly.
Otherwise the MMC card will be switched into high-speed mode and causes
possible timing violation on the host-controller side.
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
sd_read_ssr returns 0, means no error.
Fixes: 5b2e72f32721484("mmc: read ssr only if MMC write support is enabled")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Exynos5422 board has s2mps11 pmic.
If CONFIG_PMIC_S2MPS11 is enabled, it can initialize PMIC and Regulators
during booting time.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
The dts Makefile entries for the H3 are not ordered correctly.
Move the Nano Pi entries before the Orange Pi so they are.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
This patch adds a device tree file for the H5 version of the Libre
Computer Board ALL-H3-CC. It is the same board first introduced in
commit afe2754412 ("sunxi: Add support for Libre Computer Board
ALL-H3-CC H3 ver."), with the H3 SoC replaced with the H5 SoC, and
has 4Gb DDR3 chips instead of 2Gb ones.
The device tree utilizes the common board design file for ALL-H3-CC,
providing just the model strings and SoC specifics.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
This patch adds a device tree file for the H2+ version of the Libre
Computer Board ALL-H3-CC. It is the same board first introduced in
commit afe2754412 ("sunxi: Add support for Libre Computer Board
ALL-H3-CC H3 ver."), with the H3 SoC replaced with the H2+ SoC, and
has only two 2Gb DDR3 chips instead of four.
The device tree utilizes the common board design file for ALL-H3-CC,
providing just the model strings and SoC specifics.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
The Libre Computer Project ALL-H3-CC has three models, all using the
same board design, but with different pin compatible SoCs and amount of
DRAM.
Currently only the H3 1GB DRAM variant is supported. To support the two
other variants, first split the original device tree into a common board
design part and an SoC specific part.
The SoC part only defines which SoC is used and model name, and includes
the SoC specific dtsi file and the common design dtsi file.
Also fix up the SPDX identifier line to use the correct comment style,
and place it on the first line.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
The Libre Computer Board ALL-H3-CC does not have an I2C controllable
regulator. Having R_I2C and SPL_I2C enabled serves no purpose.
Disable them.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
