Implement EMAC clocks via ccu_clk_gate for Allwinner A10 SoC.
Which would eventually used in sunxi_emac.c driver.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
- Implement SPI AHB, MOD clocks via ccu_clk_gate for all
supported Allwinner SoCs
- Implement SPI resets via ccu_reset for all supported
Allwinner SoCs.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
This patch adds fixed-factor clock driver which derives clock
rate by dividing (div) and multiplying (mult) fixed factors
to a parent clock.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add driver code for the SiFive FU540 PRCI IP block. This IP block
handles reset and clock control for the SiFive FU540 device and
implements SoC-level clock tree controls and dividers.
Based on code written by Wesley Terpstra <wesley@sifive.com>
found in commit 999529edf517ed75b56659d456d221b2ee56bb60 of:
https://github.com/riscv/riscv-linux
Boot and PLL rate change were tested on a SiFive HiFive Unleashed
board.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Drop per SoC def_bool on each driver, since this is now implied by
SoC Kconfig option instead.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
To activate the csg option, the driver need to set the bit2
of PLLNCR register = SSCG_CTRL: Spread Spectrum Clock Generator
of PLLn enable.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add support of clk dump command and
display information during probe (under CONFIG_DISPLAY_CPUINFO).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Because stgen is initialized with HSI clock, we need to
recalculate the counter when changing frequency.
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Remove support of ck_usbo_48m clock node in device tree,
but force 48MHz frequency to prepare alignment
with kernel device tree.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
These clocks are needed to get MMC running. We don't actually support
setting them yet.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
It is helpful to print the clock number as well as the index, so that this
can be looked up in the binding file. Update the debug() statement to do
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Add support for setting pinctrl and clock for I2S on rk3288. This allows
the sound driver to operate. These settings were created by rkmux.py
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Some Allwinner clock devices have parent clocks and reset gates itself,
which need to be activated for them to work.
Add some code to just assert all resets and enable all clocks given.
This should enable the A80 MMC config clock, which requires both to be
activated. The full CCU devices typically don't require resets, and have
just fixed clocks as their parents. Since we treat both as optional and
enabling fixed clocks is a NOP, this works for all cases, without the need
to differentiate between those clock types.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jagan Teki <jagan@openedev.com>
The A80 handles resets and clock gates for the MMC devices differently,
outside of the CCU IP block. Consequently we have a separate clock
device with a separate binding for that.
Implement that with the respective clock gates and resets to allow the
A80 taking part in the DM_MMC game.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[jagan: fix a80 mmc clock config compatible]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Add the MMC clock gates and reset bits for all the Allwinner SoCs.
This allows them to be used by the MMC driver.
We don't advertise the mod clock yet, as this is still handled by the
MMC driver.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[jagan: add V3S, A80 gates/resets]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Add initial clock driver for Allwinner A80.
- Implement UART bus clocks via ccu_clk_gate table for
A80, so it can accessed in common clk enable and disable
functions from clk_sunxi.c
- Implement UART bus resets via ccu_reset table for A80,
so it can accessed in common reset deassert and assert
functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Add initial clock driver for Allwinner H6.
- Implement UART bus clocks via ccu_clk_gate table for
H6, so it can accessed in common clk enable and disable
functions from clk_sunxi.c
- Implement UART bus resets via ccu_reset table for H6,
so it can accessed in common reset deassert and assert
functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Implement UART resets for all relevant Allwinner SoC
clock drivers via ccu reset table.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Implement UART clocks for all Allwinner SoC
clock drivers via ccu clock gate table.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Add initial clock driver for Allwinner V3S.
- Implement USB bus and USB clocks via ccu_clk_gate table
for V3S, so it can accessed in common clk enable and disable
functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
for V3S, so it can accessed in common reset deassert
and assert functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner R40.
- Implement USB bus and USB clocks via ccu_clk_gate
for R40, so it can accessed in common clk enable
and disable functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
for R40, so it can accessed in common reset deassert
and assert functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner A83T.
- Implement USB bus and USB clocks via ccu_clk_gate table
for A83T, so it can accessed in common clk enable and
disable functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
for A83T, so it can accessed in common reset deassert
and assert functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner A23/A33.
- Implement USB bus and USB clocks via ccu_clk_gate table
for A23/A33, so it can accessed in common clk enable and
disable functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
for A23/A33, so it can accessed in common reset deassert
and assert functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner A31.
- Implement USB ahb1 and USB clocks via ccu_clk_gate table
for A31, so it can accessed in common clk enable and disable
functions from clk_sunxi.c
- Implement USB ahb1 and USB resets via ccu_reset table
for A31, so it can accessed in common reset deassert
and assert functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner A10s/A13.
- Implement USB ahb and USB clocks via ccu_clk_gate table
for A10s/A13, so it can accessed in common clk enable and
disable functions from clk_sunxi.c
- Implement USB resets via ccu_reset table for A10s/A13,
so it can accessed in common reset deassert and assert
functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner A10/A20.
- Implement USB ahb and USB clocks via ccu_clk_gate table
for A10/A20, so it can accessed in common clk enable and
disable functions from clk_sunxi.c
- Implement USB resets via ccu_reset table for A10/A20,
so it can accessed in common reset deassert and assert
functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner H3/H5.
- Implement USB bus and USB clocks via ccu_clk_gate table for
H3/H5, so it can accessed in common clk enable and disable
functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table for
H3/H5, so it can accessed in common reset deassert and assert
functions from reset-sunxi.c
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add common reset driver for all Allwinner SoC's.
Since CLK and RESET share common DT compatible, it is CLK driver
job is to bind the reset driver. So add CLK bind call on respective
SoC driver by passing ccu map descriptor so-that reset deassert,
deassert operations held based on ccu reset table defined from
CLK driver.
Select DM_RESET via CLK_SUNXI, this make hidden section of RESET
since CLK and RESET share common DT compatible and code.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Add initial clock driver for Allwinner A64.
Implement USB clock enable and disable functions for
OHCI, EHCI, OTG and USBPHY gate and clock registers
via ccu clk gate table.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
The ethsys contains not only the clock gating controller, but also the
reset controller for the whole ethernet subsystem and its components.
This patch adds binding of the reset controller so that the ethernet node
can have references on it.
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
When build clk driver in spl, met the warning:
"
drivers/clk/imx/clk-imx8.c:21:25: warning: ‘imx8_clk_names’ defined but not used [-Wunused-variable]
static struct imx8_clks imx8_clk_names[] = {
^~~~~~~~~~~~~~
"
Fix with wrapping the array with CONFIG_CMD_CLK.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
The Denali NAND controller IP needs three clocks:
- clk: controller core clock
- clk_x: bus interface clock
- ecc_clk: clock at which ECC circuitry is run
Currently, only the first one (50MHz) is provided. The rest of the
two clock ports must be connected to the 200MHz clock line. Add this.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Add hardware spinlock in the list of the clocks.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
In commit e5e06b65ad ("clk: Allow clock defaults to be set also
during re-reloc state") the earlier guard against setting clock
defaults in pre-reloc state was removed. While it is easy to filter
'assigned-clocks' properties for SPL using CONFIG_OF_SPL_REMOVE_PROPS,
no such mechanism exists for the pre-reloc stage of the full U-Boot.
With the default defconfig for the RK3399-Q7 (which filter the
'assigned-clocks' property for the DTS used by SPL anyway), this
caused a pause during startup of the full U-Boot stage that lasted for
almost 10s (due to the CPU not having been clocked up yet).
This reintroduces the guard from commit f4fcba5c5b ("clk: Allow
clock defaults to be set also during re-reloc state") and extends it
to only apply outside of a TPL/SPL build: i.e. clk_set_defaults will
now run in pre-reloc state for SPL, but only after reloc for the full
U-Boot.
References: commit f4fcba5c5b ("clk: implement clk_set_defaults()")
References: commit e5e06b65ad ("clk: Allow clock defaults to be set
also during re-reloc state")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This patch modifies the meson clock driver to use syscon/regmap like
the Linux kernel does, as it is needed if we want to share the same
DTS files.
DTS files are synchronized from Linux 4.19.
Signed-off-by: Loic Devulder <ldevulder@suse.de>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
The SDHI clock must be configured differently for HS200/HS400/SDR104
modes. Add support for reconfiguring the SDHI clock settings into the
clock driver.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This patch sets the PLL of CPU cluster B (BPLL) to 600 MHz.
This decreases the boot time of Linux 4.19 by about 8%.
The 600 MHz are inspired by the 600 MHz used for LPLL initialization
(came in with commit 9f636a249c).
Tested on RK3399-Q7 on Haikou base board.
Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Make adjustments to the rv1108 clock driver in order to align it
with the internal Rockchip version.
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This patch adds a driver for MT7623 clock blocks.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Tested-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This patch adds clock modules for MediaTek SoCs:
- Shared part: a common driver which contains the general operations
for plls, muxes, dividers and gates so that we can reuse it in future.
- Specific SoC part: the group of structures used to hold the hardware
configuration for each SoC.
We take MT7629 as an example to demonstrate how to implement driver if
any other MediaTek chips would like to use it.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This patch adds a minimal clock driver for the Amlogic AXG SoC to handle
the basic gates and PLLs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
We are about to add support for the Amlogic AXG SoC. While very close to
the Gx SoC family, we will need to handle a few thing which are different
in this SoC. Rework the meson arch directory to prepare for this.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This debug print was not designed to be active in non-debug mode.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
At present these functions return 0 on success. For some devices we want
to know how many bytes were transferred. It seems useful to adjust the API
to be more like the POSIX read() and write() functions.
Update these two methods, a test and all users.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
clk81 divider is 0 based (meaning that 0 value in the register means
divide by 1). Fix clk81 rate calculation for this.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
The earlier commit f4fcba5c5b ("clk: implement clk_set_defaults()")
which introduced the functionality for setting clock defaults such as
rates and parents will skip the processing when executing in a re-reloc
state. This for example can prevent the assigning of clock parents
when running in SPL code. Go ahead and remove this limitation.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.
To mitigate this potential impact, the following changes are
implemented:
- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
drivers that support both statically declared devices and
configuration from device tree
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The algorithm in the ast2500_calc_clock_config() routine suffers from
integer rounding and the requested rate does not get the appropriate
set of Numerator, Denumerator, Post Divider parameters.
This is the case for the D2-PLL clock used by the MAC controllers in
RGMII mode. The requested rated is 250MHz but a 251MHz is assigned.
The easiest way to fix this problem is to introduce an array of clock
settings defining the N, M, P parameters for well known frequencies
used by the Aspeed SoC.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Complete in the drivers directory the work started with
commit 83d290c56f ("SPDX: Convert all of our single
license tags to Linux Kernel style").
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
The Arm Versatile Express and Juno development boards contain an
OSC clock generator that can be accessed through the Versatile
Express config bus. The generators are quite often being controlled
by some MCU and the config bus offers a uniform way of exposing them.
Signed-off-by: Liviu Dudau <liviu.dudau@foss.arm.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
- Multiples updates to the turris boards / platform
- Changes / enhancements to the Marvell PHY drivers, mainly
to support the turris platform
- Many fixes and enhancements to the pxa3xx NAND driver
- Fixes for the UART boot mode in kwboot
- Misc minor changes to other 32bit and 64bit boards
Add support for changing clock rate and parent clock for Armada 37xx
peripheral clocks.
Only clocks which can be disabled (.can_gate is true) can have parent
or rate changed.
This is needed so that Turris Mox can change SPI clock in device tree.
Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>
Some TI Keystone 2 and K3 family of SoCs contain a system controller
(like the Power Management Micro Controller (PMMC) on 66AK2G SoCs and
the Device Management and Security Controller on AM65x SoCs) that manage
the low-level device control (like clocks, resets etc) for the various
hardware modules present on the SoC. These device control operations are
provided to the host processor OS through a communication protocol
called the TI System Control Interface (TI SCI) protocol.
This patch adds a clock driver that communicates to the system
controller over the TI SCI protocol for performing clock management of
various devices present on the SoC. Various clock functionality is
achieved by the means of different TI SCI device operations provided by
the TI SCI framework.
This code is loosely based on the drivers/clk/keystone/sci-clk.c driver
of the Linux kernel.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This patch adds support for :
- Rate calculation through muxes and generic dividers
- Basic gate setting propagation
- Reparenting for muxes
- Clock rate setting through generic dividers without reparenting
Support is only added to the Composite VPU and VAPB clocks in order
to support the Video Processing Unit Power Domain clock setup.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Add clock driver for the Arria10, which allows reading the clock
frequency from all the clock described in the DT. The driver also
allows enabling and disabling the clock. Reconfiguring frequency
is not supported thus far.
Since the DT bindings for the SoCFPGA clock are massively misdesigned
and the handoff DT adds additional incorrectly described entries to
the DT, the driver contains workarounds which attempt to rectify all
of those problems.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
In case the slow clock is not properly configured, the UTMI clock
cannot lock the PLL, because UPLLCOUNT will "wait X slow clock cycles".
In this case U-boot will loop indefinitely.
Added a timeout in this case, to start U-boot even if UTMI clock is
not enabled, so the user can use different media if needed, or investigate.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
sourcing of sub directiory kconfig files are not in
proper order, so keep them in ascending order.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
The Assigned Clock parents and rates misses the fact that a "0" entry can
be passed to skip setting a parent or rate of an assigned clock as
described in the Linux clock bindings at [1].
This patch simply skips the clock reparenting if the DT parsing returns
-ENOENT and the clock rate setting if "0" is passed as clock rate.
[1] https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/clock/clock-bindings.txt#L135
Fixes: f4fcba5c5b "clk: implement clk_set_defaults()"
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add clk_valid() to check for optional clocks are valid.
Call clk_valid() in test/dm/clk.c and add relevant test routine to
sandbox clk tests.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
HSE and LSE bypass shall support both analog and digital signals.
This patch add a way to select digital bypas case in the device tree
and set the associated bit DIGBYP in RCC_BDCR and RCC_OCEN register
during clock tree initialization.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Add ADC clock gating, that may be used by STM32 ADC.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This patch add clk_enable/clk_disable/clk_get_rate support for
- DSI_PX
- LTDC_PX
- DSI_K (only get rate)
These clocks are needed for LTDC and DSI drivers with latest device tree.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
the function compute the VCO PLL freq, used in
- stm32mp1_read_pll_freq()
- pll_set_rate()
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
# Conflicts:
# drivers/clk/clk_stm32mp1.c
This patch define RCC_PLLNCFGR2_SHIFT to reuse it in
the pll function for set rate.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Vikas Manocha <vikas.manocha@st.com>
Following next kernel rcc bindings, we must use a MFD
RCC driver which is able to bind both clock and reset
drivers.
We can reuse and adapt RCC MFD driver already available
for MCU SoCs (F4/F7/H7).
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This patch fixed the same if/else part error by adding the required
source select on the basis of is_pre_src check.
Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit adds Actions Semi OWL family base clock and S900 SoC
specific clock support. For S900 peripheral clock support, only UART
clock has been added for now.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Introduce a basic clock driver for Amlogic Meson SoCs which supports
enabling/disabling clock gates and getting their frequency.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
The PE clock have two parents, add support for picking the correct
one and deriving the clock from it.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
The PLL rate could be in the GHz range, which could overflow a 32bit
data type. Since the hardware is 64bit anyway, pass the clock rates
as 64bit number internally to avoid this.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
The mul and div arguments were reported in reverse order in the debug
message, swap them to fix this.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
dm_warn is too noisy, replace with dev_dbg for less noise.
Based on original work by Wenyou Yang
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Since b0ba1e7e9d
(rockchip: clk: rk3288: add clk_enable function and support USB HOST0/HSIC)
Ethernet no longer probes on RK3288.
Add no-ops for GMAC clocks observed to be requested which match the
clk_enable cases in RK3368 and RK3399.
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Cc: Wadim Egorov <w.egorov@phytec.de>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Add support for the clk dump command on Armada 37xx.
Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
The drivers are based on Linux driver by Gregory Clement.
The TBG clocks support only the .get_rate method.
- since setting rate is not supported, the driver computes the rates
when probing and so subsequent calls to the .get_rate method do not
read the corresponding registers again
The peripheral clocks support methods .get_rate, .enable and .disable.
- the .set_parent method theoretically could be supported on some clocks
(the parent would have to be one of the TBG clocks)
- the .set_rate method would have to try all the divider values to find
the best approximation of a given rate, and it doesn't seem like
this should be needed in U-Boot, therefore not implemented
Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
Add VREF clock gating, that may be used by STM32 VREFBUF regulator.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
On all STM32F4 and F7 SoCs family (except STM32F429), PLLSAI
output P can be used as 48MHz clock source for USB and SDMMC.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Tested By: Bruno Herrera <bruherrera@gmail.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>
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>
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.
Signed-off-by: Tom Rini <trini@konsulko.com>
