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Add RTCAPB and RTC clock support.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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This patch solves the following warnings:
drivers/clk/clk_stm32mp1.c: In function 'stm32mp1_clk_get_parent':
warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (i = 0; i < ARRAY_SIZE(stm32mp1_clks); i++)
^
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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Reduce difference with kernel Linux device tree.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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ETHCK_K is the identifier the kernel clock for ETH in kernel
binding, selected by ETHKSELR / gated by ETHCKEN = BIT(7).
U-Boot driver need to use the same identifier, so change ETHCK
to ETHCK_K.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
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Add missing SPI1 clock needed by SPI1 instance.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
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Add the DDRPHYC support for clk_set_rate, used in DDR interactive mode
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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Add support of trusted boot, using TF-A as first stage bootloader,
The boot sequence is
BootRom >=> TF-A.stm32 (clock & DDR) >=> U-Boot.stm32
The TF-A monitor provides secure monitor with support of SMC
- proprietary to manage secure devices (BSEC for example)
- PSCI for power
The same device tree is used for STMicroelectronics boards with
basic boot and with trusted boot.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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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>
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Add support of clk dump command and
display information during probe (under CONFIG_DISPLAY_CPUINFO).
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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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>
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Remove unnecessary setbits on set/clear registers.
Avoid to deactivate HSI with HSE.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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Add support for enable/disable of IPCC clock using AHB3 registers
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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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>
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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>
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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>
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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>
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Alignment with kernel clock driver
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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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>
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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
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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>
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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>
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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>
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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>
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The STGEN is the clock source for the Cortex A7 arch timer.
So after modification of its frequency, CP15 cntfreq is updated
and a new timer init is performed.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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add binding and code for clock tree initialization from device tree
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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add RCC clock driver for STMP32MP157
- base on driver model = UCLASS_CLK
- support ops to enable, disable and get rate
of all SOC clock needed by U-Boot
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
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