The RCG divider field takes a value of (2*h - 1) where h is the divisor.
This allows fractional dividers to be supported by calculating them at
compile time using a macro.
However, the clk_rcg_set_rate_mnd() function was also performing the
calculation. Clean this all up and consistently use the F() macro to
calculate these at compile time and properly support fractional divisors.
Additionally, improve clk_bcr_update() to timeout with a warning rather
than hanging the board, and make the freq_tbl struct and helpers common
so that they can be reused by future platforms.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
This property is needed on some platforms to ensure that only the
relevant bits are set in the M/N/D registers.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Currently, it isn't possible to build clock drivers for more than one
platform due to how the msm_enable() and msm_set_rate() callbacks are
implemented.
Extend qcom_clk_data to include function pointers for these and convert
all platforms to use them.
Previously, clock drivers relied on include/configs/<board.h> to include the
board specific sysmap header, however as most of the header contents are clock
driver related, import the contents directly into each clock driver and
remove the header. The only exception here is the dragonboard820c board file
which includes some pinctrl macros, those are also inlined.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
[caleb: remove additional sysmap-sdm845.h mention]
Many gate clocks can be enabled with a single register write, add support
for defining these simple gate clocks and add the ones found on SDM845.
While we're here, inline clk_init_uart() into msm_set_rate().
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Qualcomm's clock controller blocks actually do much more than it
says on the tin.. They provide clocks, resets and power domains.
Currently, U-Boot requires one to spawn 2 separate devices for
controlling clocks and resets, both spanning the same register space.
Refactor the code to make it work with just a single DT node, making
it compatible with upstream Linux bindings and dropping the dedicated
reset driver in favour of including it in the clock driver.
Heavily inspired by Renesas code for a similar hw block.
[caleb: moved drivers to clk/qcom, added reset driver and adjusted bind
logic. Imported qcom,gcc-ipq4019.h from Linux]
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
This driver is just a stub, but it's necessary to support the upcoming
reset driver changes.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Clock drivers don't belong here, move them to the right place and
declutter mach-snapdragon a bit.
To de-couple these drivers from specific "target" platforms, add
additional config options to enable each clock driver gated behind a
common CLK_QCOM option and enable them by default for the respective
targets. This will make future work easier as we move towards a generic
Qualcomm target.
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Synchronize R-Car R8A77960 M3-W and R8A77961 M3-W+ clock tables with Linux 6.6.3,
commit bd3a9e5771a8b332f466d06f7c130a69cab0d526 .
Add ZG clock macro into rcar-gen3-cpg.h to cover the new clock type .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Julien Masson <jmasson@baylibre.com> says:
This patch series add the support for the MediaTek MT8365 EVK Board [1].
Most of the code have been copied/adapted from Linux tag v6.7-rc2.
For now we only enable/test these features:
Boot, UART, Watchdog and MMC.
[trini: This includes two clocks not listed in the Linux binding, which
needs resyncing later]
This patch adds clock driver support for MediaTek MT8365 SoC.
The changes are based on the Linux source code tag v6.7-rc2.
clk-mt8365.c has been written based on these kernel files:
- clk-mt8365.c (a96cbb146a9736f501fe66ebda6a9018735e5e8a)
- clk-mt8365-apmixedsys.c (65c9ad77cbc0eed78db94d80041aba675cfbdfa9)
And adapted following the clk attributes supported by U-Boot.
Signed-off-by: Julien Masson <jmasson@baylibre.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
clock patches for u-boot/next
The main thing in here is Igor's conversion of soc_clk_dump to a clk_ops
member. There's also a write-protect feature for nuvoton clocks.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
It's possible for composite clocks to have a divider that does not
implement set_rate() operation. For example, sandbox_clk_composite()
registers composite clock with a divider that only has get_rate().
Currently clk_composite_set_rate() only checks thate rate_ops are
present, so for sandbox it will cause NULL dereference during
clk_set_rate().
This patch adds rate_ops->set_rate check tp clk_composite_set_rate().
Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20231205232334.2931-2-ivprusov@salutedevices.com
Set pllsaidivr only if the PLLSAIR output frequency is an exact multiple
of the pixel clock rate. Otherwise, we search through all combinations
of pllsaidivr * pllsair and use the one which gives the rate closest to
requested one.
Fixes: 5e993508cb ("clk: clk_stm32f: Add set_rate for LTDC clock")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
The value to be written to the register must be appropriately shifted,
as is correctly done in other parts of the code.
Fixes: 5e993508cb ("clk: clk_stm32f: Add set_rate for LTDC clock")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Add JH7110_SYSCLK_WDT_APB and JH7110_SYSCLK_WDT_CORE clocks for JH7110
watchdog device.
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
The clk-pll.h is going to be included in multiple files soon. Add
missing header guard to prevent possible build errors in future.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Fixes: 166097e877 ("clk: exynos: add clock driver for Exynos7420 Soc")
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
CONFIG_ARCH_SUNXI will not be enabled for RISC-V SoCs using this driver.
Use the symbol for the driver itself instead.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Now that sandbox has <asm/barrier.h> and defines nop() there we should
include that in our driver for clarity and then remove our local nop()
from <k210/pll.h>.
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
+ CI: Use OpenSBI 1.3.1 release for testing
+ riscv: Support resume after exception
+ rng: Support RNG provided by RISC-V Zkr ISA extension
+ board: starfive VF2: Support jtag
+ board: starfive VF2: Support TRNG driver
+ board: sifive unmatched: Move kernel load address
In clk_enable()/clk_disable() functions, when CCF is activated,
we must pass a private clk struct to enable()/disable() ops functions.
Otherwise, the use of a container_of() construction within these ops
should be banned. Because passing a non-private clk struct to
container_of() results in an out of range error.
At the moment, clk-mux, clk-fixed-factor, clk-gate and possibly other
clocks use container_of() in their enable()/disable() functions.
Therefore, for these functions to work correclty, private clk struct
must be passed.
Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20230905221649.3577929-1-bigunclemax@gmail.com
