4 bool "Enable clock driver support"
7 This allows drivers to be provided for clock generators, including
8 oscillators and PLLs. Devices can use a common clock API to request
9 a particular clock rate and check on available clocks. Clocks can
10 feed into other clocks in a tree structure, with multiplexers to
11 choose the source for each clock.
14 bool "Enable clock support in SPL"
15 depends on CLK && SPL && SPL_DM
17 The clock subsystem adds a small amount of overhead to the image.
18 If this is acceptable and you have a need to use clock drivers in
19 SPL, enable this option. It might provide a cleaner interface to
20 setting up clocks within SPL, and allows the same drivers to be
21 used as U-Boot proper.
24 bool "Enable clock support in TPL"
25 depends on CLK && TPL_DM
27 The clock subsystem adds a small amount of overhead to the image.
28 If this is acceptable and you have a need to use clock drivers in
29 SPL, enable this option. It might provide a cleaner interface to
30 setting up clocks within TPL, and allows the same drivers to be
31 used as U-Boot proper.
34 bool "Clock controller driver for BCM6345"
35 depends on CLK && ARCH_BMIPS
38 This clock driver adds support for enabling and disabling peripheral
39 clocks on BCM6345 SoCs. HW has no rate changing capabilities.
42 def_bool y if TARGET_BOSTON
47 Enable this to support the clocks
50 bool "SPL Common Clock Framework [CCF] support "
53 Enable this option if you want to (re-)use the Linux kernel's Common
54 Clock Framework [CCF] code in U-Boot's SPL.
56 config SPL_CLK_COMPOSITE_CCF
57 bool "SPL Common Clock Framework [CCF] composite clk support "
58 depends on SPL_CLK_CCF
60 Enable this option if you want to (re-)use the Linux kernel's Common
61 Clock Framework [CCF] composite code in U-Boot's SPL.
64 bool "Common Clock Framework [CCF] support "
66 Enable this option if you want to (re-)use the Linux kernel's Common
67 Clock Framework [CCF] code in U-Boot's clock driver.
69 config CLK_COMPOSITE_CCF
70 bool "Common Clock Framework [CCF] composite clk support "
73 Enable this option if you want to (re-)use the Linux kernel's Common
74 Clock Framework [CCF] composite code in U-Boot's clock driver.
77 bool "Enable clock driver for Intel x86"
80 This provides very basic support for clocks on Intel SoCs. The driver
81 is barely used at present but could be expanded as needs arise.
82 Much clock configuration in U-Boot is either set up by the FSP, or
83 set up by U-Boot itself but only statically. Thus the driver does not
84 support changing clock rates, only querying them.
87 bool "Clock controller driver for Marvell MIPS Octeon"
88 depends on CLK && ARCH_OCTEON
91 Enable this to support the clocks on Octeon MIPS platforms.
94 bool "Enable clock driver support for STM32F family"
95 depends on CLK && (STM32F7 || STM32F4)
98 This clock driver adds support for RCC clock management
99 for STM32F4 and STM32F7 SoCs.
102 bool "TI System Control Interface (TI SCI) clock driver"
103 depends on CLK && TI_SCI_PROTOCOL && OF_CONTROL
105 This enables the clock driver support over TI System Control Interface
106 available on some new TI's SoCs. If you wish to use clock resources
107 managed by the TI System Controller, say Y here. Otherwise, say N.
110 bool "Enable cgu clock driver for HSDK boards"
111 depends on CLK && TARGET_HSDK
113 Enable this to support the cgu clocks on Synopsys ARC HSDK and
114 Synopsys ARC HSDK-4xD boards
117 bool "Enable clock driver support for Versal"
118 depends on ARCH_VERSAL
119 select ZYNQMP_FIRMWARE
121 This clock driver adds support for clock realted settings for
124 config CLK_VEXPRESS_OSC
125 bool "Enable driver for Arm Versatile Express OSC clock generators"
126 depends on CLK && VEXPRESS_CONFIG
128 This clock driver adds support for clock generators present on
129 Arm Versatile Express platforms.
132 bool "Enable clock driver support for Zynq"
133 depends on CLK && ARCH_ZYNQ
136 This clock driver adds support for clock realted settings for
140 bool "Enable clock driver support for ZynqMP"
141 depends on ARCH_ZYNQMP
142 select ZYNQMP_FIRMWARE
144 This clock driver adds support for clock realted settings for
148 bool "Enable RCC clock driver for STM32MP1"
149 depends on ARCH_STM32MP && CLK
152 Enable the STM32 clock (RCC) driver. Enable support for
153 manipulating STM32MP1's on-SoC clocks.
156 bool "Enable CDCD9XX clock driver"
159 Enable the clock synthesizer driver for CDCE913/925/937/949
163 bool "Enable SCMI clock driver"
164 depends on SCMI_FIRMWARE
166 Enable this option if you want to support clock devices exposed
167 by a SCMI agent based on SCMI clock protocol communication
170 source "drivers/clk/analogbits/Kconfig"
171 source "drivers/clk/at91/Kconfig"
172 source "drivers/clk/exynos/Kconfig"
173 source "drivers/clk/imx/Kconfig"
174 source "drivers/clk/kendryte/Kconfig"
175 source "drivers/clk/meson/Kconfig"
176 source "drivers/clk/mvebu/Kconfig"
177 source "drivers/clk/owl/Kconfig"
178 source "drivers/clk/renesas/Kconfig"
179 source "drivers/clk/sunxi/Kconfig"
180 source "drivers/clk/sifive/Kconfig"
181 source "drivers/clk/tegra/Kconfig"
182 source "drivers/clk/uniphier/Kconfig"
185 bool "Enable ICS8N3QV01 VCXO driver"
188 Support for the ICS8N3QV01 Quad-Frequency VCXO (Voltage-Controlled
189 Crystal Oscillator). The output frequency can be programmed via an
193 bool "Enable MPC83xx clock driver"
196 Support for the clock driver of the MPC83xx series of SoCs.
198 config SANDBOX_CLK_CCF
199 bool "Sandbox Common Clock Framework [CCF] support "
203 Enable this option if you want to test the Linux kernel's Common
204 Clock Framework [CCF] code in U-Boot's Sandbox clock driver.