mirror of
https://github.com/AsahiLinux/u-boot
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92d5f99633
Add driver which implements GPIO-controlled clock. The GPIO is used as a gate to enable/disable the clock. This matches linux clk-gpio.c driver, however this does not implement the GPIO mux part, which in U-Boot DM would be better fit in separate driver. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Sean Anderson <seanga2@gmail.com>
266 lines
8 KiB
Text
266 lines
8 KiB
Text
menu "Clock"
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config CLK
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bool "Enable clock driver support"
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depends on DM
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help
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This allows drivers to be provided for clock generators, including
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oscillators and PLLs. Devices can use a common clock API to request
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a particular clock rate and check on available clocks. Clocks can
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feed into other clocks in a tree structure, with multiplexers to
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choose the source for each clock.
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config SPL_CLK
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bool "Enable clock support in SPL"
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depends on CLK && SPL && SPL_DM
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help
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The clock subsystem adds a small amount of overhead to the image.
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If this is acceptable and you have a need to use clock drivers in
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SPL, enable this option. It might provide a cleaner interface to
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setting up clocks within SPL, and allows the same drivers to be
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used as U-Boot proper.
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config TPL_CLK
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bool "Enable clock support in TPL"
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depends on CLK && TPL_DM
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help
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The clock subsystem adds a small amount of overhead to the image.
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If this is acceptable and you have a need to use clock drivers in
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SPL, enable this option. It might provide a cleaner interface to
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setting up clocks within TPL, and allows the same drivers to be
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used as U-Boot proper.
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config VPL_CLK
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bool "Enable clock support in VPL"
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depends on CLK && VPL_DM
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help
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The clock subsystem adds a small amount of overhead to the image.
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If this is acceptable and you have a need to use clock drivers in
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SPL, enable this option. It might provide a cleaner interface to
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setting up clocks within TPL, and allows the same drivers to be
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used as U-Boot proper.
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config CLK_BCM6345
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bool "Clock controller driver for BCM6345"
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depends on CLK && ARCH_BMIPS
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default y
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help
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This clock driver adds support for enabling and disabling peripheral
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clocks on BCM6345 SoCs. HW has no rate changing capabilities.
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config CLK_BOSTON
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def_bool y if TARGET_BOSTON
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depends on CLK
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select REGMAP
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select SYSCON
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help
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Enable this to support the clocks
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config SPL_CLK_CCF
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bool "SPL Common Clock Framework [CCF] support "
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depends on SPL
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help
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Enable this option if you want to (re-)use the Linux kernel's Common
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Clock Framework [CCF] code in U-Boot's SPL.
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config SPL_CLK_COMPOSITE_CCF
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bool "SPL Common Clock Framework [CCF] composite clk support "
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depends on SPL_CLK_CCF
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help
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Enable this option if you want to (re-)use the Linux kernel's Common
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Clock Framework [CCF] composite code in U-Boot's SPL.
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config CLK_CCF
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bool "Common Clock Framework [CCF] support "
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help
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Enable this option if you want to (re-)use the Linux kernel's Common
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Clock Framework [CCF] code in U-Boot's clock driver.
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config CLK_COMPOSITE_CCF
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bool "Common Clock Framework [CCF] composite clk support "
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depends on CLK_CCF
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help
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Enable this option if you want to (re-)use the Linux kernel's Common
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Clock Framework [CCF] composite code in U-Boot's clock driver.
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config CLK_GPIO
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bool "GPIO-controlled clock gate driver"
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depends on CLK
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help
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Enable this option to add GPIO-controlled clock gate driver.
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config SPL_CLK_GPIO
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bool "GPIO-controlled clock gate driver in SPL"
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depends on SPL_CLK
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help
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Enable this option to add GPIO-controlled clock gate driver
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in U-Boot SPL.
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config CLK_BCM6345
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bool "Clock controller driver for BCM6345"
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depends on CLK && ARCH_BMIPS
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default y
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help
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This clock driver adds support for enabling and disabling peripheral
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clocks on BCM6345 SoCs. HW has no rate changing capabilities.
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config CLK_BOSTON
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def_bool y if TARGET_BOSTON
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depends on CLK
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select REGMAP
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select SYSCON
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help
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Enable this to support the clocks
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config CLK_CDCE9XX
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bool "Enable CDCD9XX clock driver"
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depends on CLK
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help
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Enable the clock synthesizer driver for CDCE913/925/937/949
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series of chips.
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config CLK_ICS8N3QV01
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bool "Enable ICS8N3QV01 VCXO driver"
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depends on CLK
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help
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Support for the ICS8N3QV01 Quad-Frequency VCXO (Voltage-Controlled
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Crystal Oscillator). The output frequency can be programmed via an
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I2C interface.
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config CLK_INTEL
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bool "Enable clock driver for Intel x86"
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depends on CLK && X86
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help
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This provides very basic support for clocks on Intel SoCs. The driver
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is barely used at present but could be expanded as needs arise.
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Much clock configuration in U-Boot is either set up by the FSP, or
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set up by U-Boot itself but only statically. Thus the driver does not
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support changing clock rates, only querying them.
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config CLK_K210
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bool "Clock support for Kendryte K210"
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depends on CLK
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help
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This enables support clock driver for Kendryte K210 platforms.
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config CLK_K210_SET_RATE
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bool "Enable setting the Kendryte K210 PLL rate"
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depends on CLK_K210
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help
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Add functionality to calculate new rates for K210 PLLs. Enabling this
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feature adds around 1K to U-Boot's final size.
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config CLK_MPC83XX
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bool "Enable MPC83xx clock driver"
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depends on CLK
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help
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Support for the clock driver of the MPC83xx series of SoCs.
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config CLK_OCTEON
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bool "Clock controller driver for Marvell MIPS Octeon"
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depends on CLK && ARCH_OCTEON
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default y
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help
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Enable this to support the clocks on Octeon MIPS platforms.
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config SANDBOX_CLK_CCF
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bool "Sandbox Common Clock Framework [CCF] support "
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depends on SANDBOX
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select CLK_CCF
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help
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Enable this option if you want to test the Linux kernel's Common
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Clock Framework [CCF] code in U-Boot's Sandbox clock driver.
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config CLK_SCMI
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bool "Enable SCMI clock driver"
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depends on CLK
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depends on SCMI_FIRMWARE
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help
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Enable this option if you want to support clock devices exposed
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by a SCMI agent based on SCMI clock protocol communication
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with a SCMI server.
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config SPL_CLK_SCMI
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bool "Enable SCMI clock driver in SPL"
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depends on SCMI_FIRMWARE && SPL_FIRMWARE
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help
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Enable this option if you want to support clock devices exposed
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by a SCMI agent based on SCMI clock protocol communication
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with a SCMI server in SPL.
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config CLK_HSDK
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bool "Enable cgu clock driver for HSDK boards"
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depends on CLK && TARGET_HSDK
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help
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Enable this to support the cgu clocks on Synopsys ARC HSDK and
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Synopsys ARC HSDK-4xD boards
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config CLK_VERSACLOCK
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tristate "Enable VersaClock 5/6 devices"
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depends on CLK
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depends on CLK_CCF
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depends on OF_CONTROL
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help
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This driver supports the IDT VersaClock 5 and VersaClock 6
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programmable clock generators.
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config CLK_VERSAL
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bool "Enable clock driver support for Versal"
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depends on (ARCH_VERSAL || ARCH_VERSAL_NET)
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imply ZYNQMP_FIRMWARE
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help
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This clock driver adds support for clock realted settings for
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Versal platform.
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config CLK_VEXPRESS_OSC
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bool "Enable driver for Arm Versatile Express OSC clock generators"
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depends on CLK && VEXPRESS_CONFIG
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help
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This clock driver adds support for clock generators present on
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Arm Versatile Express platforms.
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config CLK_XLNX_CLKWZRD
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bool "Xilinx Clocking Wizard"
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depends on CLK
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help
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Support for the Xilinx Clocking Wizard IP core clock generator.
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The wizard support for dynamically reconfiguring the clocking
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primitives for Multiply, Divide, Phase Shift/Offset, or Duty
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Cycle. Limited by U-Boot clk uclass without set_phase API and
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set_duty_cycle API, this driver only supports set_rate to modify
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the frequency.
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config CLK_ZYNQ
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bool "Enable clock driver support for Zynq"
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depends on CLK && ARCH_ZYNQ
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default y
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help
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This clock driver adds support for clock related settings for
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Zynq platform.
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config CLK_ZYNQMP
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bool "Enable clock driver support for ZynqMP"
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depends on ARCH_ZYNQMP
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imply ZYNQMP_FIRMWARE
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help
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This clock driver adds support for clock realted settings for
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ZynqMP platform.
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source "drivers/clk/analogbits/Kconfig"
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source "drivers/clk/at91/Kconfig"
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source "drivers/clk/exynos/Kconfig"
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source "drivers/clk/imx/Kconfig"
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source "drivers/clk/meson/Kconfig"
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source "drivers/clk/microchip/Kconfig"
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source "drivers/clk/mvebu/Kconfig"
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source "drivers/clk/owl/Kconfig"
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source "drivers/clk/renesas/Kconfig"
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source "drivers/clk/sunxi/Kconfig"
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source "drivers/clk/sifive/Kconfig"
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source "drivers/clk/starfive/Kconfig"
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source "drivers/clk/stm32/Kconfig"
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source "drivers/clk/tegra/Kconfig"
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source "drivers/clk/ti/Kconfig"
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source "drivers/clk/uniphier/Kconfig"
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endmenu
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