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menu "Clock"
config CLK
bool "Enable clock driver support"
depends on DM
help
This allows drivers to be provided for clock generators, including
oscillators and PLLs. Devices can use a common clock API to request
a particular clock rate and check on available clocks. Clocks can
feed into other clocks in a tree structure, with multiplexers to
choose the source for each clock.
config SPL_CLK
bool "Enable clock support in SPL"
depends on CLK && SPL && SPL_DM
help
The clock subsystem adds a small amount of overhead to the image.
If this is acceptable and you have a need to use clock drivers in
SPL, enable this option. It might provide a cleaner interface to
setting up clocks within SPL, and allows the same drivers to be
used as U-Boot proper.
config TPL_CLK
bool "Enable clock support in TPL"
depends on CLK && TPL_DM
help
The clock subsystem adds a small amount of overhead to the image.
If this is acceptable and you have a need to use clock drivers in
SPL, enable this option. It might provide a cleaner interface to
setting up clocks within TPL, and allows the same drivers to be
used as U-Boot proper.
config CLK_BCM6345
bool "Clock controller driver for BCM6345"
depends on CLK && ARCH_BMIPS
default y
help
This clock driver adds support for enabling and disabling peripheral
clocks on BCM6345 SoCs. HW has no rate changing capabilities.
config CLK_BOSTON
def_bool y if TARGET_BOSTON
depends on CLK
select REGMAP
select SYSCON
help
Enable this to support the clocks
config SPL_CLK_CCF
bool "SPL Common Clock Framework [CCF] support "
depends on SPL
help
Enable this option if you want to (re-)use the Linux kernel's Common
Clock Framework [CCF] code in U-Boot's SPL.
config SPL_CLK_COMPOSITE_CCF
bool "SPL Common Clock Framework [CCF] composite clk support "
depends on SPL_CLK_CCF
help
Enable this option if you want to (re-)use the Linux kernel's Common
Clock Framework [CCF] composite code in U-Boot's SPL.
config CLK_CCF
bool "Common Clock Framework [CCF] support "
help
Enable this option if you want to (re-)use the Linux kernel's Common
Clock Framework [CCF] code in U-Boot's clock driver.
config CLK_COMPOSITE_CCF
bool "Common Clock Framework [CCF] composite clk support "
depends on CLK_CCF
help
Enable this option if you want to (re-)use the Linux kernel's Common
Clock Framework [CCF] composite code in U-Boot's clock driver.
config CLK_INTEL
bool "Enable clock driver for Intel x86"
depends on CLK && X86
help
This provides very basic support for clocks on Intel SoCs. The driver
is barely used at present but could be expanded as needs arise.
Much clock configuration in U-Boot is either set up by the FSP, or
set up by U-Boot itself but only statically. Thus the driver does not
support changing clock rates, only querying them.
config CLK_OCTEON
bool "Clock controller driver for Marvell MIPS Octeon"
depends on CLK && ARCH_OCTEON
default y
help
Enable this to support the clocks on Octeon MIPS platforms.
config CLK_STM32F
bool "Enable clock driver support for STM32F family"
depends on CLK && (STM32F7 || STM32F4)
default y
help
This clock driver adds support for RCC clock management
for STM32F4 and STM32F7 SoCs.
config CLK_HSDK
bool "Enable cgu clock driver for HSDK boards"
depends on CLK && TARGET_HSDK
help
Enable this to support the cgu clocks on Synopsys ARC HSDK and
Synopsys ARC HSDK-4xD boards
config CLK_VERSAL
bool "Enable clock driver support for Versal"
depends on ARCH_VERSAL
select ZYNQMP_FIRMWARE
help
This clock driver adds support for clock realted settings for
Versal platform.
config CLK_VEXPRESS_OSC
bool "Enable driver for Arm Versatile Express OSC clock generators"
depends on CLK && VEXPRESS_CONFIG
help
This clock driver adds support for clock generators present on
Arm Versatile Express platforms.
config CLK_ZYNQ
bool "Enable clock driver support for Zynq"
depends on CLK && ARCH_ZYNQ
default y
help
This clock driver adds support for clock related settings for
Zynq platform.
config CLK_ZYNQMP
bool "Enable clock driver support for ZynqMP"
depends on ARCH_ZYNQMP
select ZYNQMP_FIRMWARE
help
This clock driver adds support for clock realted settings for
ZynqMP platform.
config CLK_STM32MP1
bool "Enable RCC clock driver for STM32MP1"
depends on ARCH_STM32MP && CLK
default y
help
Enable the STM32 clock (RCC) driver. Enable support for
manipulating STM32MP1's on-SoC clocks.
config CLK_CDCE9XX
bool "Enable CDCD9XX clock driver"
depends on CLK
help
Enable the clock synthesizer driver for CDCE913/925/937/949
series of chips.
config CLK_SCMI
bool "Enable SCMI clock driver"
depends on SCMI_FIRMWARE
help
Enable this option if you want to support clock devices exposed
by a SCMI agent based on SCMI clock protocol communication
with a SCMI server.
source "drivers/clk/analogbits/Kconfig"
source "drivers/clk/at91/Kconfig"
source "drivers/clk/exynos/Kconfig"
source "drivers/clk/imx/Kconfig"
source "drivers/clk/kendryte/Kconfig"
source "drivers/clk/meson/Kconfig"
source "drivers/clk/microchip/Kconfig"
source "drivers/clk/mvebu/Kconfig"
source "drivers/clk/owl/Kconfig"
source "drivers/clk/renesas/Kconfig"
source "drivers/clk/sunxi/Kconfig"
source "drivers/clk/sifive/Kconfig"
source "drivers/clk/tegra/Kconfig"
source "drivers/clk/ti/Kconfig"
source "drivers/clk/uniphier/Kconfig"
config ICS8N3QV01
bool "Enable ICS8N3QV01 VCXO driver"
depends on CLK
help
Support for the ICS8N3QV01 Quad-Frequency VCXO (Voltage-Controlled
Crystal Oscillator). The output frequency can be programmed via an
I2C interface.
config CLK_MPC83XX
bool "Enable MPC83xx clock driver"
depends on CLK
help
Support for the clock driver of the MPC83xx series of SoCs.
config SANDBOX_CLK_CCF
bool "Sandbox Common Clock Framework [CCF] support "
depends on SANDBOX
select CLK_CCF
help
Enable this option if you want to test the Linux kernel's Common
Clock Framework [CCF] code in U-Boot's Sandbox clock driver.
endmenu
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