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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/clock/st
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--Documentation/devicetree/bindings/clock/st,nomadik.txt104
-rw-r--r--Documentation/devicetree/bindings/clock/st,stm32-rcc.txt138
-rw-r--r--Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt71
-rw-r--r--Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml125
-rw-r--r--Documentation/devicetree/bindings/clock/st/st,clkgen-mux.txt32
-rw-r--r--Documentation/devicetree/bindings/clock/st/st,clkgen-pll.txt40
-rw-r--r--Documentation/devicetree/bindings/clock/st/st,clkgen.txt68
-rw-r--r--Documentation/devicetree/bindings/clock/st/st,flexgen.txt133
-rw-r--r--Documentation/devicetree/bindings/clock/st/st,quadfs.txt48
-rw-r--r--Documentation/devicetree/bindings/clock/starfive,jh7100-audclk.yaml57
-rw-r--r--Documentation/devicetree/bindings/clock/starfive,jh7100-clkgen.yaml56
-rw-r--r--Documentation/devicetree/bindings/clock/stericsson,abx500.txt20
-rw-r--r--Documentation/devicetree/bindings/clock/stericsson,u8500-clks.yaml178
13 files changed, 1070 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/st,nomadik.txt b/Documentation/devicetree/bindings/clock/st,nomadik.txt
new file mode 100644
index 000000000..40e0cf1f7
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,nomadik.txt
@@ -0,0 +1,104 @@
+ST Microelectronics Nomadik SRC System Reset and Control
+
+This binding uses the common clock binding:
+Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+The Nomadik SRC controller is responsible of controlling chrystals,
+PLLs and clock gates.
+
+Required properties for the SRC node:
+- compatible: must be "stericsson,nomadik-src"
+- reg: must contain the SRC register base and size
+
+Optional properties for the SRC node:
+- disable-sxtalo: if present this will disable the SXTALO
+ i.e. the driver output for the slow 32kHz chrystal, if the
+ board has its own circuitry for providing this oscillator
+- disable-mxtal: if present this will disable the MXTALO,
+ i.e. the driver output for the main (~19.2 MHz) chrystal,
+ if the board has its own circuitry for providing this
+ oscillator
+
+
+PLL nodes: these nodes represent the two PLLs on the system,
+which should both have the main chrystal, represented as a
+fixed frequency clock, as parent.
+
+Required properties for the two PLL nodes:
+- compatible: must be "st,nomadik-pll-clock"
+- clock-cells: must be 0
+- clock-id: must be 1 or 2 for PLL1 and PLL2 respectively
+- clocks: this clock will have main chrystal as parent
+
+
+HCLK nodes: these represent the clock gates on individual
+lines from the HCLK clock tree and the gate for individual
+lines from the PCLK clock tree.
+
+Requires properties for the HCLK nodes:
+- compatible: must be "st,nomadik-hclk-clock"
+- clock-cells: must be 0
+- clock-id: must be the clock ID from 0 to 63 according to
+ this table:
+
+ 0: HCLKDMA0
+ 1: HCLKSMC
+ 2: HCLKSDRAM
+ 3: HCLKDMA1
+ 4: HCLKCLCD
+ 5: PCLKIRDA
+ 6: PCLKSSP
+ 7: PCLKUART0
+ 8: PCLKSDI
+ 9: PCLKI2C0
+ 10: PCLKI2C1
+ 11: PCLKUART1
+ 12: PCLMSP0
+ 13: HCLKUSB
+ 14: HCLKDIF
+ 15: HCLKSAA
+ 16: HCLKSVA
+ 17: PCLKHSI
+ 18: PCLKXTI
+ 19: PCLKUART2
+ 20: PCLKMSP1
+ 21: PCLKMSP2
+ 22: PCLKOWM
+ 23: HCLKHPI
+ 24: PCLKSKE
+ 25: PCLKHSEM
+ 26: HCLK3D
+ 27: HCLKHASH
+ 28: HCLKCRYP
+ 29: PCLKMSHC
+ 30: HCLKUSBM
+ 31: HCLKRNG
+ (32, 33, 34, 35 RESERVED)
+ 36: CLDCLK
+ 37: IRDACLK
+ 38: SSPICLK
+ 39: UART0CLK
+ 40: SDICLK
+ 41: I2C0CLK
+ 42: I2C1CLK
+ 43: UART1CLK
+ 44: MSPCLK0
+ 45: USBCLK
+ 46: DIFCLK
+ 47: IPI2CCLK
+ 48: IPBMCCLK
+ 49: HSICLKRX
+ 50: HSICLKTX
+ 51: UART2CLK
+ 52: MSPCLK1
+ 53: MSPCLK2
+ 54: OWMCLK
+ (55 RESERVED)
+ 56: SKECLK
+ (57 RESERVED)
+ 58: 3DCLK
+ 59: PCLKMSP3
+ 60: MSPCLK3
+ 61: MSHCCLK
+ 62: USBMCLK
+ 63: RNGCCLK
diff --git a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
new file mode 100644
index 000000000..cfa04b614
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
@@ -0,0 +1,138 @@
+STMicroelectronics STM32 Reset and Clock Controller
+===================================================
+
+The RCC IP is both a reset and a clock controller.
+
+Please refer to clock-bindings.txt for common clock controller binding usage.
+Please also refer to reset.txt for common reset controller binding usage.
+
+Required properties:
+- compatible: Should be:
+ "st,stm32f42xx-rcc"
+ "st,stm32f469-rcc"
+ "st,stm32f746-rcc"
+ "st,stm32f769-rcc"
+
+- reg: should be register base and length as documented in the
+ datasheet
+- #reset-cells: 1, see below
+- #clock-cells: 2, device nodes should specify the clock in their "clocks"
+ property, containing a phandle to the clock device node, an index selecting
+ between gated clocks and other clocks and an index specifying the clock to
+ use.
+- clocks: External oscillator clock phandle
+ - high speed external clock signal (HSE)
+ - external I2S clock (I2S_CKIN)
+
+Example:
+
+ rcc: rcc@40023800 {
+ #reset-cells = <1>;
+ #clock-cells = <2>
+ compatible = "st,stm32f42xx-rcc", "st,stm32-rcc";
+ reg = <0x40023800 0x400>;
+ clocks = <&clk_hse>, <&clk_i2s_ckin>;
+ };
+
+Specifying gated clocks
+=======================
+
+The primary index must be set to 0.
+
+The secondary index is the bit number within the RCC register bank, starting
+from the first RCC clock enable register (RCC_AHB1ENR, address offset 0x30).
+
+It is calculated as: index = register_offset / 4 * 32 + bit_offset.
+Where bit_offset is the bit offset within the register (LSB is 0, MSB is 31).
+
+To simplify the usage and to share bit definition with the reset and clock
+drivers of the RCC IP, macros are available to generate the index in
+human-readble format.
+
+For STM32F4 series, the macro are available here:
+ - include/dt-bindings/mfd/stm32f4-rcc.h
+
+Example:
+
+ /* Gated clock, AHB1 bit 0 (GPIOA) */
+ ... {
+ clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOA)>
+ };
+
+ /* Gated clock, AHB2 bit 4 (CRYP) */
+ ... {
+ clocks = <&rcc 0 STM32F4_AHB2_CLOCK(CRYP)>
+ };
+
+Specifying other clocks
+=======================
+
+The primary index must be set to 1.
+
+The secondary index is bound with the following magic numbers:
+
+ 0 SYSTICK
+ 1 FCLK
+ 2 CLK_LSI (low-power clock source)
+ 3 CLK_LSE (generated from a 32.768 kHz low-speed external
+ crystal or ceramic resonator)
+ 4 CLK_HSE_RTC (HSE division factor for RTC clock)
+ 5 CLK_RTC (real-time clock)
+ 6 PLL_VCO_I2S (vco frequency of I2S pll)
+ 7 PLL_VCO_SAI (vco frequency of SAI pll)
+ 8 CLK_LCD (LCD-TFT)
+ 9 CLK_I2S (I2S clocks)
+ 10 CLK_SAI1 (audio clocks)
+ 11 CLK_SAI2
+ 12 CLK_I2SQ_PDIV (post divisor of pll i2s q divisor)
+ 13 CLK_SAIQ_PDIV (post divisor of pll sai q divisor)
+
+ 14 CLK_HSI (Internal ocscillator clock)
+ 15 CLK_SYSCLK (System Clock)
+ 16 CLK_HDMI_CEC (HDMI-CEC clock)
+ 17 CLK_SPDIF (SPDIF-Rx clock)
+ 18 CLK_USART1 (U(s)arts clocks)
+ 19 CLK_USART2
+ 20 CLK_USART3
+ 21 CLK_UART4
+ 22 CLK_UART5
+ 23 CLK_USART6
+ 24 CLK_UART7
+ 25 CLK_UART8
+ 26 CLK_I2C1 (I2S clocks)
+ 27 CLK_I2C2
+ 28 CLK_I2C3
+ 29 CLK_I2C4
+ 30 CLK_LPTIMER (LPTimer1 clock)
+ 31 CLK_PLL_SRC
+ 32 CLK_DFSDM1
+ 33 CLK_ADFSDM1
+ 34 CLK_F769_DSI
+)
+
+Example:
+
+ /* Misc clock, FCLK */
+ ... {
+ clocks = <&rcc 1 STM32F4_APB1_CLOCK(TIM2)>
+ };
+
+
+Specifying softreset control of devices
+=======================================
+
+Device nodes should specify the reset channel required in their "resets"
+property, containing a phandle to the reset device node and an index specifying
+which channel to use.
+The index is the bit number within the RCC registers bank, starting from RCC
+base address.
+It is calculated as: index = register_offset / 4 * 32 + bit_offset.
+Where bit_offset is the bit offset within the register.
+For example, for CRC reset:
+ crc = AHB1RSTR_offset / 4 * 32 + CRCRST_bit_offset = 0x10 / 4 * 32 + 12 = 140
+
+example:
+
+ timer2 {
+ resets = <&rcc STM32F4_APB1_RESET(TIM2)>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
new file mode 100644
index 000000000..cac24ee10
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
@@ -0,0 +1,71 @@
+STMicroelectronics STM32H7 Reset and Clock Controller
+=====================================================
+
+The RCC IP is both a reset and a clock controller.
+
+Please refer to clock-bindings.txt for common clock controller binding usage.
+Please also refer to reset.txt for common reset controller binding usage.
+
+Required properties:
+- compatible: Should be:
+ "st,stm32h743-rcc"
+
+- reg: should be register base and length as documented in the
+ datasheet
+
+- #reset-cells: 1, see below
+
+- #clock-cells : from common clock binding; shall be set to 1
+
+- clocks: External oscillator clock phandle
+ - high speed external clock signal (HSE)
+ - low speed external clock signal (LSE)
+ - external I2S clock (I2S_CKIN)
+
+Optional properties:
+- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain
+ write protection (RTC clock).
+
+Example:
+
+ rcc: reset-clock-controller@58024400 {
+ compatible = "st,stm32h743-rcc", "st,stm32-rcc";
+ reg = <0x58024400 0x400>;
+ #reset-cells = <1>;
+ #clock-cells = <1>;
+ clocks = <&clk_hse>, <&clk_lse>, <&clk_i2s_ckin>;
+
+ st,syscfg = <&pwrcfg>;
+};
+
+The peripheral clock consumer should specify the desired clock by
+having the clock ID in its "clocks" phandle cell.
+
+Example:
+
+ timer5: timer@40000c00 {
+ compatible = "st,stm32-timer";
+ reg = <0x40000c00 0x400>;
+ interrupts = <50>;
+ clocks = <&rcc TIM5_CK>;
+ };
+
+Specifying softreset control of devices
+=======================================
+
+Device nodes should specify the reset channel required in their "resets"
+property, containing a phandle to the reset device node and an index specifying
+which channel to use.
+The index is the bit number within the RCC registers bank, starting from RCC
+base address.
+It is calculated as: index = register_offset / 4 * 32 + bit_offset.
+Where bit_offset is the bit offset within the register.
+
+For example, for CRC reset:
+ crc = AHB4RSTR_offset / 4 * 32 + CRCRST_bit_offset = 0x88 / 4 * 32 + 19 = 1107
+
+Example:
+
+ timer2 {
+ resets = <&rcc STM32H7_APB1L_RESET(TIM2)>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
new file mode 100644
index 000000000..242fe922b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/st,stm32mp1-rcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Reset Clock Controller Binding
+
+maintainers:
+ - Gabriel Fernandez <gabriel.fernandez@foss.st.com>
+
+description: |
+ The RCC IP is both a reset and a clock controller.
+ RCC makes also power management (resume/supend and wakeup interrupt).
+ Please also refer to reset.txt for common reset controller binding usage.
+
+ This binding uses common clock bindings
+ Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+ Specifying clocks
+ =================
+
+ All available clocks are defined as preprocessor macros in
+ dt-bindings/clock/stm32mp1-clks.h header and can be used in device
+ tree sources.
+
+ Specifying softreset control of devices
+ =======================================
+
+ Device nodes should specify the reset channel required in their "resets"
+ property, containing a phandle to the reset device node and an index specifying
+ which channel to use.
+ The index is the bit number within the RCC registers bank, starting from RCC
+ base address.
+ It is calculated as: index = register_offset / 4 * 32 + bit_offset.
+ Where bit_offset is the bit offset within the register.
+
+ For example on STM32MP1, for LTDC reset:
+ ltdc = APB4_RSTSETR_offset / 4 * 32 + LTDC_bit_offset
+ = 0x180 / 4 * 32 + 0 = 3072
+
+ The list of valid indices for STM32MP1 is available in:
+ include/dt-bindings/reset-controller/stm32mp1-resets.h
+ include/dt-bindings/reset-controller/stm32mp13-resets.h
+
+ This file implements defines like:
+ #define LTDC_R 3072
+
+properties:
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ items:
+ - enum:
+ - st,stm32mp1-rcc-secure
+ - st,stm32mp1-rcc
+ - st,stm32mp13-rcc
+ - const: syscon
+ clocks: true
+ clock-names: true
+
+ reg:
+ maxItems: 1
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,stm32mp1-rcc-secure
+ - st,stm32mp13-rcc
+then:
+ properties:
+ clocks:
+ description: Specifies oscillators.
+ maxItems: 5
+
+ clock-names:
+ items:
+ - const: hse
+ - const: hsi
+ - const: csi
+ - const: lse
+ - const: lsi
+ required:
+ - clocks
+ - clock-names
+else:
+ properties:
+ clocks:
+ description:
+ Specifies the external RX clock for ethernet MAC.
+ maxItems: 1
+
+ clock-names:
+ const: ETH_RX_CLK/ETH_REF_CLK
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/stm32mp1-clks.h>
+ rcc: rcc@50000000 {
+ compatible = "st,stm32mp1-rcc-secure", "syscon";
+ reg = <0x50000000 0x1000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ clock-names = "hse", "hsi", "csi", "lse", "lsi";
+ clocks = <&scmi_clk CK_SCMI_HSE>,
+ <&scmi_clk CK_SCMI_HSI>,
+ <&scmi_clk CK_SCMI_CSI>,
+ <&scmi_clk CK_SCMI_LSE>,
+ <&scmi_clk CK_SCMI_LSI>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/st/st,clkgen-mux.txt b/Documentation/devicetree/bindings/clock/st/st,clkgen-mux.txt
new file mode 100644
index 000000000..9a46cb1d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st/st,clkgen-mux.txt
@@ -0,0 +1,32 @@
+Binding for a ST multiplexed clock driver.
+
+This binding supports only simple indexed multiplexers, it does not
+support table based parent index to hardware value translations.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+
+- compatible : shall be:
+ "st,stih407-clkgen-a9-mux"
+
+- #clock-cells : from common clock binding; shall be set to 0.
+
+- reg : A Base address and length of the register set.
+
+- clocks : from common clock binding
+
+Example:
+
+ clk_m_a9: clk-m-a9@92b0000 {
+ #clock-cells = <0>;
+ compatible = "st,stih407-clkgen-a9-mux";
+ reg = <0x92b0000 0x10000>;
+
+ clocks = <&clockgen_a9_pll 0>,
+ <&clockgen_a9_pll 0>,
+ <&clk_s_c0_flexgen 13>,
+ <&clk_m_a9_ext2f_div2>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/st/st,clkgen-pll.txt b/Documentation/devicetree/bindings/clock/st/st,clkgen-pll.txt
new file mode 100644
index 000000000..d0fa1e02d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st/st,clkgen-pll.txt
@@ -0,0 +1,40 @@
+Binding for a ST pll clock driver.
+
+This binding uses the common clock binding[1].
+Base address is located to the parent node. See clock binding[2]
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+[2] Documentation/devicetree/bindings/clock/st/st,clkgen.txt
+
+Required properties:
+
+- compatible : shall be:
+ "st,clkgen-pll0"
+ "st,clkgen-pll0-a0"
+ "st,clkgen-pll0-c0"
+ "st,clkgen-pll1"
+ "st,clkgen-pll1-c0"
+ "st,stih407-clkgen-plla9"
+ "st,stih418-clkgen-plla9"
+
+- #clock-cells : From common clock binding; shall be set to 1.
+
+- clocks : From common clock binding
+
+- clock-output-names : From common clock binding.
+
+Example:
+
+ clockgen-a9@92b0000 {
+ compatible = "st,clkgen-c32";
+ reg = <0x92b0000 0xffff>;
+
+ clockgen_a9_pll: clockgen-a9-pll {
+ #clock-cells = <1>;
+ compatible = "st,stih407-clkgen-plla9";
+
+ clocks = <&clk_sysin>;
+
+ clock-output-names = "clockgen-a9-pll-odf";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/st/st,clkgen.txt b/Documentation/devicetree/bindings/clock/st/st,clkgen.txt
new file mode 100644
index 000000000..45ac19bfa
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st/st,clkgen.txt
@@ -0,0 +1,68 @@
+Binding for a Clockgen hardware block found on
+certain STMicroelectronics consumer electronics SoC devices.
+
+A Clockgen node can contain pll, diviser or multiplexer nodes.
+
+We will find only the base address of the Clockgen, this base
+address is common of all subnode.
+
+ clockgen_node {
+ reg = <>;
+
+ pll_node {
+ ...
+ };
+
+ quadfs_node {
+ ...
+ };
+
+ mux_node {
+ ...
+ };
+
+ flexgen_node {
+ ...
+ };
+ ...
+ };
+
+This binding uses the common clock binding[1].
+Each subnode should use the binding described in [2]..[7]
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+[3] Documentation/devicetree/bindings/clock/st/st,clkgen-mux.txt
+[4] Documentation/devicetree/bindings/clock/st/st,clkgen-pll.txt
+[7] Documentation/devicetree/bindings/clock/st/st,quadfs.txt
+[8] Documentation/devicetree/bindings/clock/st/st,flexgen.txt
+
+
+Required properties:
+- reg : A Base address and length of the register set.
+
+Example:
+
+ clockgen-a@90ff000 {
+ compatible = "st,clkgen-c32";
+ reg = <0x90ff000 0x1000>;
+
+ clk_s_a0_pll: clk-s-a0-pll {
+ #clock-cells = <1>;
+ compatible = "st,clkgen-pll0";
+
+ clocks = <&clk_sysin>;
+
+ clock-output-names = "clk-s-a0-pll-ofd-0";
+ };
+
+ clk_s_a0_flexgen: clk-s-a0-flexgen {
+ compatible = "st,flexgen";
+
+ #clock-cells = <1>;
+
+ clocks = <&clk_s_a0_pll 0>,
+ <&clk_sysin>;
+
+ clock-output-names = "clk-ic-lmi0";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/st/st,flexgen.txt b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
new file mode 100644
index 000000000..c91807540
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
@@ -0,0 +1,133 @@
+Binding for a type of flexgen structure found on certain
+STMicroelectronics consumer electronics SoC devices
+
+This structure includes:
+- a clock cross bar (represented by a mux element)
+- a pre and final dividers (represented by a divider and gate elements)
+
+Flexgen structure is a part of Clockgen[1].
+
+Please find an example below:
+
+ Clockgen block diagram
+ -------------------------------------------------------------------
+ | Flexgen structure |
+ | --------------------------------------------- |
+ | | ------- -------- -------- | |
+clk_sysin | | | | | | | | |
+---|-----------------|-->| | | | | | | |
+ | | | | | | | | | | |
+ | | ------- | | | |Pre | |Final | | |
+ | | |PLL0 | | | | |Dividers| |Dividers| | |
+ | |->| | | | | | x32 | | x32 | | |
+ | | | odf_0|----|-->| | | | | | | |
+ | | | | | | | | | | | | |
+ | | | | | | | | | | | | |
+ | | | | | | | | | | | | |
+ | | | | | | | | | | | | |
+ | | ------- | | | | | | | | |
+ | | | | | | | | | | |
+ | | ------- | | Clock | | | | | | |
+ | | |PLL1 | | | | | | | | | |
+ | |->| | | | Cross | | | | | | |
+ | | | odf_0|----|-->| | | | | | CLK_DIV[31:0]
+ | | | | | | Bar |====>| |====>| |===|=========>
+ | | | | | | | | | | | | |
+ | | | | | | | | | | | | |
+ | | | | | | | | | | | | |
+ | | ------- | | | | | | | | |
+ | | | | | | | | | | |
+ | | ------- | | | | | | | | |
+ | | |QUADFS | | | | | | | | | |
+ | |->| ch0|----|-->| | | | | | | |
+ | | | | | | | | | | | |
+ | | ch1|----|-->| | | | | | | |
+ | | | | | | | | | | | |
+ | | ch2|----|-->| | | DIV | | DIV | | |
+ | | | | | | | 1 to | | 1 to | | |
+ | | ch3|----|-->| | | 1024 | | 64 | | |
+ | ------- | | | | | | | | |
+ | | ------- -------- -------- | |
+ | -------------------------------------------- |
+ | |
+ -------------------------------------------------------------------
+
+This binding uses the common clock binding[2].
+
+[1] Documentation/devicetree/bindings/clock/st/st,clkgen.txt
+[2] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be:
+ "st,flexgen"
+ "st,flexgen-audio", "st,flexgen" (enable clock propagation on parent for
+ audio use case)
+ "st,flexgen-video", "st,flexgen" (enable clock propagation on parent
+ and activate synchronous mode)
+ "st,flexgen-stih407-a0"
+ "st,flexgen-stih410-a0"
+ "st,flexgen-stih407-c0"
+ "st,flexgen-stih410-c0"
+ "st,flexgen-stih418-c0"
+ "st,flexgen-stih407-d0"
+ "st,flexgen-stih410-d0"
+ "st,flexgen-stih407-d2"
+ "st,flexgen-stih418-d2"
+ "st,flexgen-stih407-d3"
+
+- #clock-cells : from common clock binding; shall be set to 1 (multiple clock
+ outputs).
+
+- clocks : must be set to the parent's phandle. it could be output clocks of
+ a quadsfs or/and a pll or/and clk_sysin (up to 7 clocks)
+
+- clock-output-names : List of strings used to name the clock outputs.
+
+Example:
+
+ clk_s_c0_flexgen: clk-s-c0-flexgen {
+
+ #clock-cells = <1>;
+ compatible = "st,flexgen";
+
+ clocks = <&clk_s_c0_pll0 0>,
+ <&clk_s_c0_pll1 0>,
+ <&clk_s_c0_quadfs 0>,
+ <&clk_s_c0_quadfs 1>,
+ <&clk_s_c0_quadfs 2>,
+ <&clk_s_c0_quadfs 3>,
+ <&clk_sysin>;
+
+ clock-output-names = "clk-icn-gpu",
+ "clk-fdma",
+ "clk-nand",
+ "clk-hva",
+ "clk-proc-stfe",
+ "clk-proc-tp",
+ "clk-rx-icn-dmu",
+ "clk-rx-icn-hva",
+ "clk-icn-cpu",
+ "clk-tx-icn-dmu",
+ "clk-mmc-0",
+ "clk-mmc-1",
+ "clk-jpegdec",
+ "clk-ext2fa9",
+ "clk-ic-bdisp-0",
+ "clk-ic-bdisp-1",
+ "clk-pp-dmu",
+ "clk-vid-dmu",
+ "clk-dss-lpc",
+ "clk-st231-aud-0",
+ "clk-st231-gp-1",
+ "clk-st231-dmu",
+ "clk-icn-lmi",
+ "clk-tx-icn-disp-1",
+ "clk-icn-sbc",
+ "clk-stfe-frc2",
+ "clk-eth-phy",
+ "clk-eth-ref-phyclk",
+ "clk-flash-promip",
+ "clk-main-disp",
+ "clk-aux-disp",
+ "clk-compo-dvp";
+ };
diff --git a/Documentation/devicetree/bindings/clock/st/st,quadfs.txt b/Documentation/devicetree/bindings/clock/st/st,quadfs.txt
new file mode 100644
index 000000000..c4ba2adb0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/st/st,quadfs.txt
@@ -0,0 +1,48 @@
+Binding for a type of quad channel digital frequency synthesizer found on
+certain STMicroelectronics consumer electronics SoC devices.
+
+This version contains a programmable PLL which can generate up to 216, 432
+or 660MHz (from a 30MHz oscillator input) as the input to the digital
+synthesizers.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be:
+ "st,quadfs"
+ "st,quadfs-d0"
+ "st,quadfs-d2"
+ "st,quadfs-d3"
+ "st,quadfs-pll"
+
+
+- #clock-cells : from common clock binding; shall be set to 1.
+
+- reg : A Base address and length of the register set.
+
+- clocks : from common clock binding
+
+- clock-output-names : From common clock binding. The block has 4
+ clock outputs but not all of them in a specific instance
+ have to be used in the SoC. If a clock name is left as
+ an empty string then no clock will be created for the
+ output associated with that string index. If fewer than
+ 4 strings are provided then no clocks will be created
+ for the remaining outputs.
+
+Example:
+
+ clk_s_c0_quadfs: clk-s-c0-quadfs@9103000 {
+ #clock-cells = <1>;
+ compatible = "st,quadfs-pll";
+ reg = <0x9103000 0x1000>;
+
+ clocks = <&clk_sysin>;
+
+ clock-output-names = "clk-s-c0-fs0-ch0",
+ "clk-s-c0-fs0-ch1",
+ "clk-s-c0-fs0-ch2",
+ "clk-s-c0-fs0-ch3";
+ };
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7100-audclk.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7100-audclk.yaml
new file mode 100644
index 000000000..8f49a1ae0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7100-audclk.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7100-audclk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7100 Audio Clock Generator
+
+maintainers:
+ - Emil Renner Berthing <kernel@esmil.dk>
+
+properties:
+ compatible:
+ const: starfive,jh7100-audclk
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Audio source clock
+ - description: External 12.288MHz clock
+ - description: Domain 7 AHB bus clock
+
+ clock-names:
+ items:
+ - const: audio_src
+ - const: audio_12288
+ - const: dom7ahb_bus
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/starfive-jh7100-audio.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/starfive-jh7100.h>
+
+ clock-controller@10480000 {
+ compatible = "starfive,jh7100-audclk";
+ reg = <0x10480000 0x10000>;
+ clocks = <&clkgen JH7100_CLK_AUDIO_SRC>,
+ <&clkgen JH7100_CLK_AUDIO_12288>,
+ <&clkgen JH7100_CLK_DOM7AHB_BUS>;
+ clock-names = "audio_src", "audio_12288", "dom7ahb_bus";
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7100-clkgen.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7100-clkgen.yaml
new file mode 100644
index 000000000..12f17b60e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7100-clkgen.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7100-clkgen.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7100 Clock Generator
+
+maintainers:
+ - Geert Uytterhoeven <geert@linux-m68k.org>
+ - Emil Renner Berthing <kernel@esmil.dk>
+
+properties:
+ compatible:
+ const: starfive,jh7100-clkgen
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Main clock source (25 MHz)
+ - description: Application-specific clock source (12-27 MHz)
+ - description: RMII reference clock (50 MHz)
+ - description: RGMII RX clock (125 MHz)
+
+ clock-names:
+ items:
+ - const: osc_sys
+ - const: osc_aud
+ - const: gmac_rmii_ref
+ - const: gmac_gr_mii_rxclk
+
+ '#clock-cells':
+ const: 1
+ description:
+ See <dt-bindings/clock/starfive-jh7100.h> for valid indices.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@11800000 {
+ compatible = "starfive,jh7100-clkgen";
+ reg = <0x11800000 0x10000>;
+ clocks = <&osc_sys>, <&osc_aud>, <&gmac_rmii_ref>, <&gmac_gr_mii_rxclk>;
+ clock-names = "osc_sys", "osc_aud", "gmac_rmii_ref", "gmac_gr_mii_rxclk";
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/stericsson,abx500.txt b/Documentation/devicetree/bindings/clock/stericsson,abx500.txt
new file mode 100644
index 000000000..dbaa886b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/stericsson,abx500.txt
@@ -0,0 +1,20 @@
+Clock bindings for ST-Ericsson ABx500 clocks
+
+Required properties :
+- compatible : shall contain the following:
+ "stericsson,ab8500-clk"
+- #clock-cells should be <1>
+
+The ABx500 clocks need to be placed as a subnode of an AB8500
+device node, see mfd/ab8500.txt
+
+All available clocks are defined as preprocessor macros in
+dt-bindings/clock/ste-ab8500.h header and can be used in device
+tree sources.
+
+Example:
+
+clock-controller {
+ compatible = "stericsson,ab8500-clk";
+ #clock-cells = <1>;
+};
diff --git a/Documentation/devicetree/bindings/clock/stericsson,u8500-clks.yaml b/Documentation/devicetree/bindings/clock/stericsson,u8500-clks.yaml
new file mode 100644
index 000000000..215030721
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/stericsson,u8500-clks.yaml
@@ -0,0 +1,178 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/stericsson,u8500-clks.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST-Ericsson DB8500 (U8500) clocks
+
+maintainers:
+ - Ulf Hansson <ulf.hansson@linaro.org>
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: While named "U8500 clocks" these clocks are inside the
+ DB8500 digital baseband system-on-chip and its siblings such as
+ DB8520. These bindings consider the clocks present in the SoC
+ itself, not off-chip clocks. There are four different on-chip
+ clocks - RTC (32 kHz), CPU clock (SMP TWD), PRCMU (power reset and
+ control management unit) clocks and PRCC (peripheral reset and
+ clock controller) clocks. For some reason PRCC 4 does not exist so
+ the itemization can be a bit unintuitive.
+
+properties:
+ compatible:
+ enum:
+ - stericsson,u8500-clks
+ - stericsson,u8540-clks
+ - stericsson,u9540-clks
+
+ reg:
+ items:
+ - description: PRCC 1 register area
+ - description: PRCC 2 register area
+ - description: PRCC 3 register area
+ - description: PRCC 5 register area
+ - description: PRCC 6 register area
+
+ prcmu-clock:
+ description: A subnode with one clock cell for PRCMU (power, reset, control
+ management unit) clocks. The cell indicates which PRCMU clock in the
+ prcmu-clock node the consumer wants to use.
+ type: object
+
+ properties:
+ '#clock-cells':
+ const: 1
+
+ additionalProperties: false
+
+ prcc-periph-clock:
+ description: A subnode with two clock cells for PRCC (peripheral
+ reset and clock controller) peripheral clocks. The first cell indicates
+ which PRCC block the consumer wants to use, possible values are 1, 2, 3,
+ 5, 6. The second cell indicates which clock inside the PRCC block it
+ wants, possible values are 0 thru 31.
+ type: object
+
+ properties:
+ '#clock-cells':
+ const: 2
+
+ additionalProperties: false
+
+ prcc-kernel-clock:
+ description: A subnode with two clock cells for PRCC (peripheral reset
+ and clock controller) kernel clocks. The first cell indicates which PRCC
+ block the consumer wants to use, possible values are 1, 2, 3, 5, 6. The
+ second cell indicates which clock inside the PRCC block it wants, possible
+ values are 0 thru 31.
+ type: object
+
+ properties:
+ '#clock-cells':
+ const: 2
+
+ additionalProperties: false
+
+ prcc-reset-controller:
+ description: A subnode with two reset cells for the reset portions of the
+ PRCC (peripheral reset and clock controller). The first cell indicates
+ which PRCC block the consumer wants to use, possible values are 1, 2, 3
+ 5 and 6. The second cell indicates which reset line inside the PRCC block
+ it wants to control, possible values are 0 thru 31.
+ type: object
+
+ properties:
+ '#reset-cells':
+ const: 2
+
+ additionalProperties: false
+
+ rtc32k-clock:
+ description: A subnode with zero clock cells for the 32kHz RTC clock.
+ type: object
+
+ properties:
+ '#clock-cells':
+ const: 0
+
+ additionalProperties: false
+
+ smp-twd-clock:
+ description: A subnode for the ARM SMP Timer Watchdog cluster with zero
+ clock cells.
+ type: object
+
+ properties:
+ '#clock-cells':
+ const: 0
+
+ additionalProperties: false
+
+ clkout-clock:
+ description: A subnode with three clock cells for externally routed clocks,
+ output clocks. These are two PRCMU-internal clocks that can be divided and
+ muxed out on the pads of the DB8500 SoC.
+ type: object
+
+ properties:
+ '#clock-cells':
+ description:
+ The first cell indicates which output clock we are using,
+ possible values are 0 (CLKOUT1) and 1 (CLKOUT2).
+ The second cell indicates which clock we want to use as source,
+ possible values are 0 thru 7, see the defines for the different
+ source clocks.
+ The third cell is a divider, legal values are 1 thru 63.
+ const: 3
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - prcmu-clock
+ - prcc-periph-clock
+ - prcc-kernel-clock
+ - rtc32k-clock
+ - smp-twd-clock
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/ste-db8500-clkout.h>
+ clocks@8012 {
+ compatible = "stericsson,u8500-clks";
+ reg = <0x8012f000 0x1000>, <0x8011f000 0x1000>,
+ <0x8000f000 0x1000>, <0xa03ff000 0x1000>,
+ <0xa03cf000 0x1000>;
+
+ prcmu_clk: prcmu-clock {
+ #clock-cells = <1>;
+ };
+
+ prcc_pclk: prcc-periph-clock {
+ #clock-cells = <2>;
+ };
+
+ prcc_kclk: prcc-kernel-clock {
+ #clock-cells = <2>;
+ };
+
+ prcc_reset: prcc-reset-controller {
+ #reset-cells = <2>;
+ };
+
+ rtc_clk: rtc32k-clock {
+ #clock-cells = <0>;
+ };
+
+ smp_twd_clk: smp-twd-clock {
+ #clock-cells = <0>;
+ };
+
+ clkout_clk: clkout-clock {
+ #clock-cells = <3>;
+ };
+ };