diff options
Diffstat (limited to 'Documentation')
9 files changed, 217 insertions, 91 deletions
diff --git a/Documentation/clk.txt b/Documentation/clk.txt index 511628bb3d3a..593cca5058b1 100644 --- a/Documentation/clk.txt +++ b/Documentation/clk.txt @@ -96,7 +96,7 @@ the operations defined in clk-provider.h:: int (*get_phase)(struct clk_hw *hw); int (*set_phase)(struct clk_hw *hw, int degrees); void (*init)(struct clk_hw *hw); - int (*debug_init)(struct clk_hw *hw, + void (*debug_init)(struct clk_hw *hw, struct dentry *dentry); }; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,g3dsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,g3dsys.txt new file mode 100644 index 000000000000..7de43bf41fdc --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,g3dsys.txt @@ -0,0 +1,30 @@ +MediaTek g3dsys controller +============================ + +The MediaTek g3dsys controller provides various clocks and reset controller to +the GPU. + +Required Properties: + +- compatible: Should be: + - "mediatek,mt2701-g3dsys", "syscon": + for MT2701 SoC + - "mediatek,mt7623-g3dsys", "mediatek,mt2701-g3dsys", "syscon": + for MT7623 SoC +- #clock-cells: Must be 1 +- #reset-cells: Must be 1 + +The g3dsys controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +g3dsys: clock-controller@13000000 { + compatible = "mediatek,mt7623-g3dsys", + "mediatek,mt2701-g3dsys", + "syscon"; + reg = <0 0x13000000 0 0x200>; + #clock-cells = <1>; + #reset-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/clock/actions,s900-cmu.txt b/Documentation/devicetree/bindings/clock/actions,s900-cmu.txt new file mode 100644 index 000000000000..93e4fb827cd6 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/actions,s900-cmu.txt @@ -0,0 +1,47 @@ +* Actions S900 Clock Management Unit (CMU) + +The Actions S900 clock management unit generates and supplies clock to various +controllers within the SoC. The clock binding described here is applicable to +S900 SoC. + +Required Properties: + +- compatible: should be "actions,s900-cmu" +- reg: physical base address of the controller and length of memory mapped + region. +- clocks: Reference to the parent clocks ("hosc", "losc") +- #clock-cells: should be 1. + +Each clock is assigned an identifier, and client nodes can use this identifier +to specify the clock which they consume. + +All available clocks are defined as preprocessor macros in +dt-bindings/clock/actions,s900-cmu.h header and can be used in device +tree sources. + +External clocks: + +The hosc clock used as input for the plls is generated outside the SoC. It is +expected that it is defined using standard clock bindings as "hosc". + +Actions S900 CMU also requires one more clock: + - "losc" - internal low frequency oscillator + +Example: Clock Management Unit node: + + cmu: clock-controller@e0160000 { + compatible = "actions,s900-cmu"; + reg = <0x0 0xe0160000 0x0 0x1000>; + clocks = <&hosc>, <&losc>; + #clock-cells = <1>; + }; + +Example: UART controller node that consumes clock generated by the clock +management unit: + + uart: serial@e012a000 { + compatible = "actions,s900-uart", "actions,owl-uart"; + reg = <0x0 0xe012a000 0x0 0x2000>; + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cmu CLK_UART5>; + }; diff --git a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt index f8e4a93466cb..ab730ea0a560 100644 --- a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt +++ b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt @@ -276,36 +276,38 @@ These clock IDs are defined in: clk_ts_500_ref genpll2 2 BCM_SR_GENPLL2_TS_500_REF_CLK clk_125_nitro genpll2 3 BCM_SR_GENPLL2_125_NITRO_CLK clk_chimp genpll2 4 BCM_SR_GENPLL2_CHIMP_CLK - clk_nic_flash genpll2 5 BCM_SR_GENPLL2_NIC_FLASH + clk_nic_flash genpll2 5 BCM_SR_GENPLL2_NIC_FLASH_CLK + clk_fs genpll2 6 BCM_SR_GENPLL2_FS_CLK genpll3 crystal 0 BCM_SR_GENPLL3 clk_hsls genpll3 1 BCM_SR_GENPLL3_HSLS_CLK clk_sdio genpll3 2 BCM_SR_GENPLL3_SDIO_CLK genpll4 crystal 0 BCM_SR_GENPLL4 - ccn genpll4 1 BCM_SR_GENPLL4_CCN_CLK + clk_ccn genpll4 1 BCM_SR_GENPLL4_CCN_CLK clk_tpiu_pll genpll4 2 BCM_SR_GENPLL4_TPIU_PLL_CLK - noc_clk genpll4 3 BCM_SR_GENPLL4_NOC_CLK + clk_noc genpll4 3 BCM_SR_GENPLL4_NOC_CLK clk_chclk_fs4 genpll4 4 BCM_SR_GENPLL4_CHCLK_FS4_CLK clk_bridge_fscpu genpll4 5 BCM_SR_GENPLL4_BRIDGE_FSCPU_CLK - genpll5 crystal 0 BCM_SR_GENPLL5 - fs4_hf_clk genpll5 1 BCM_SR_GENPLL5_FS4_HF_CLK - crypto_ae_clk genpll5 2 BCM_SR_GENPLL5_CRYPTO_AE_CLK - raid_ae_clk genpll5 3 BCM_SR_GENPLL5_RAID_AE_CLK + clk_fs4_hf genpll5 1 BCM_SR_GENPLL5_FS4_HF_CLK + clk_crypto_ae genpll5 2 BCM_SR_GENPLL5_CRYPTO_AE_CLK + clk_raid_ae genpll5 3 BCM_SR_GENPLL5_RAID_AE_CLK genpll6 crystal 0 BCM_SR_GENPLL6 - 48_usb genpll6 1 BCM_SR_GENPLL6_48_USB_CLK + clk_48_usb genpll6 1 BCM_SR_GENPLL6_48_USB_CLK lcpll0 crystal 0 BCM_SR_LCPLL0 clk_sata_refp lcpll0 1 BCM_SR_LCPLL0_SATA_REFP_CLK clk_sata_refn lcpll0 2 BCM_SR_LCPLL0_SATA_REFN_CLK - clk_usb_ref lcpll0 3 BCM_SR_LCPLL0_USB_REF_CLK - sata_refpn lcpll0 3 BCM_SR_LCPLL0_SATA_REFPN_CLK + clk_sata_350 lcpll0 3 BCM_SR_LCPLL0_SATA_350_CLK + clk_sata_500 lcpll0 4 BCM_SR_LCPLL0_SATA_500_CLK lcpll1 crystal 0 BCM_SR_LCPLL1 - wan lcpll1 1 BCM_SR_LCPLL0_WAN_CLK + clk_wan lcpll1 1 BCM_SR_LCPLL1_WAN_CLK + clk_usb_ref lcpll1 2 BCM_SR_LCPLL1_USB_REF_CLK + clk_crmu_ts lcpll1 3 BCM_SR_LCPLL1_CRMU_TS_CLK lcpll_pcie crystal 0 BCM_SR_LCPLL_PCIE - pcie_phy_ref lcpll1 1 BCM_SR_LCPLL_PCIE_PHY_REF_CLK + clk_pcie_phy_ref lcpll1 1 BCM_SR_LCPLL_PCIE_PHY_REF_CLK diff --git a/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.txt b/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.txt new file mode 100644 index 000000000000..f82064546d11 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.txt @@ -0,0 +1,100 @@ +* Nuvoton NPCM7XX Clock Controller + +Nuvoton Poleg BMC NPCM7XX contains an integrated clock controller, which +generates and supplies clocks to all modules within the BMC. + +External clocks: + +There are six fixed clocks that are generated outside the BMC. All clocks are of +a known fixed value that cannot be changed. clk_refclk, clk_mcbypck and +clk_sysbypck are inputs to the clock controller. +clk_rg1refck, clk_rg2refck and clk_xin are external clocks suppling the +network. They are set on the device tree, but not used by the clock module. The +network devices use them directly. +Example can be found below. + +All available clocks are defined as preprocessor macros in: +dt-bindings/clock/nuvoton,npcm7xx-clock.h +and can be reused as DT sources. + +Required Properties of clock controller: + + - compatible: "nuvoton,npcm750-clk" : for clock controller of Nuvoton + Poleg BMC NPCM750 + + - reg: physical base address of the clock controller and length of + memory mapped region. + + - #clock-cells: should be 1. + +Example: Clock controller node: + + clk: clock-controller@f0801000 { + compatible = "nuvoton,npcm750-clk"; + #clock-cells = <1>; + reg = <0xf0801000 0x1000>; + clock-names = "refclk", "sysbypck", "mcbypck"; + clocks = <&clk_refclk>, <&clk_sysbypck>, <&clk_mcbypck>; + }; + +Example: Required external clocks for network: + + /* external reference clock */ + clk_refclk: clk-refclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <25000000>; + clock-output-names = "refclk"; + }; + + /* external reference clock for cpu. float in normal operation */ + clk_sysbypck: clk-sysbypck { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <800000000>; + clock-output-names = "sysbypck"; + }; + + /* external reference clock for MC. float in normal operation */ + clk_mcbypck: clk-mcbypck { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <800000000>; + clock-output-names = "mcbypck"; + }; + + /* external clock signal rg1refck, supplied by the phy */ + clk_rg1refck: clk-rg1refck { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <125000000>; + clock-output-names = "clk_rg1refck"; + }; + + /* external clock signal rg2refck, supplied by the phy */ + clk_rg2refck: clk-rg2refck { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <125000000>; + clock-output-names = "clk_rg2refck"; + }; + + clk_xin: clk-xin { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <50000000>; + clock-output-names = "clk_xin"; + }; + + +Example: GMAC controller node that consumes two clocks: a generated clk by the +clock controller and a fixed clock from DT (clk_rg1refck). + + ethernet0: ethernet@f0802000 { + compatible = "snps,dwmac"; + reg = <0xf0802000 0x2000>; + interrupts = <0 14 4>; + interrupt-names = "macirq"; + clocks = <&clk_rg1refck>, <&clk NPCM7XX_CLK_AHB>; + clock-names = "stmmaceth", "clk_gmac"; + }; diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt index 551d03be9665..d1fb8b213dde 100644 --- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt +++ b/Documentation/devicetree/bindings/clock/qcom,gcc.txt @@ -17,6 +17,7 @@ Required properties : "qcom,gcc-msm8974pro-ac" "qcom,gcc-msm8994" "qcom,gcc-msm8996" + "qcom,gcc-msm8998" "qcom,gcc-mdm9615" - reg : shall contain base register location and length diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt b/Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt new file mode 100644 index 000000000000..3c007653da31 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/qcom,rpmh-clk.txt @@ -0,0 +1,22 @@ +Qualcomm Technologies, Inc. RPMh Clocks +------------------------------------------------------- + +Resource Power Manager Hardened (RPMh) manages shared resources on +some Qualcomm Technologies Inc. SoCs. It accepts clock requests from +other hardware subsystems via RSC to control clocks. + +Required properties : +- compatible : shall contain "qcom,sdm845-rpmh-clk" + +- #clock-cells : must contain 1 + +Example : + +#include <dt-bindings/clock/qcom,rpmh.h> + + &apps_rsc { + rpmhcc: clock-controller { + compatible = "qcom,sdm845-rpmh-clk"; + #clock-cells = <1>; + }; + }; diff --git a/Documentation/devicetree/bindings/clock/rockchip.txt b/Documentation/devicetree/bindings/clock/rockchip.txt deleted file mode 100644 index 22f6769e5d4a..000000000000 --- a/Documentation/devicetree/bindings/clock/rockchip.txt +++ /dev/null @@ -1,77 +0,0 @@ -Device Tree Clock bindings for arch-rockchip - -This binding uses the common clock binding[1]. - -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt - -== Gate clocks == - -These bindings are deprecated! -Please use the soc specific CRU bindings instead. - -The gate registers form a continuos block which makes the dt node -structure a matter of taste, as either all gates can be put into -one gate clock spanning all registers or they can be divided into -the 10 individual gates containing 16 clocks each. -The code supports both approaches. - -Required properties: -- compatible : "rockchip,rk2928-gate-clk" -- reg : shall be the control register address(es) for the clock. -- #clock-cells : from common clock binding; shall be set to 1 -- clock-output-names : the corresponding gate names that the clock controls -- clocks : should contain the parent clock for each individual gate, - therefore the number of clocks elements should match the number of - clock-output-names - -Example using multiple gate clocks: - - clk_gates0: gate-clk@200000d0 { - compatible = "rockchip,rk2928-gate-clk"; - reg = <0x200000d0 0x4>; - clocks = <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>, - <&dummy>, <&dummy>; - - clock-output-names = - "gate_core_periph", "gate_cpu_gpll", - "gate_ddrphy", "gate_aclk_cpu", - "gate_hclk_cpu", "gate_pclk_cpu", - "gate_atclk_cpu", "gate_i2s0", - "gate_i2s0_frac", "gate_i2s1", - "gate_i2s1_frac", "gate_i2s2", - "gate_i2s2_frac", "gate_spdif", - "gate_spdif_frac", "gate_testclk"; - - #clock-cells = <1>; - }; - - clk_gates1: gate-clk@200000d4 { - compatible = "rockchip,rk2928-gate-clk"; - reg = <0x200000d4 0x4>; - clocks = <&xin24m>, <&xin24m>, - <&xin24m>, <&dummy>, - <&dummy>, <&xin24m>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>, - <&xin24m>, <&dummy>; - - clock-output-names = - "gate_timer0", "gate_timer1", - "gate_timer2", "gate_jtag", - "gate_aclk_lcdc1_src", "gate_otgphy0", - "gate_otgphy1", "gate_ddr_gpll", - "gate_uart0", "gate_frac_uart0", - "gate_uart1", "gate_frac_uart1", - "gate_uart2", "gate_frac_uart2", - "gate_uart3", "gate_frac_uart3"; - - #clock-cells = <1>; - }; diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt index 460ef27b1008..47d2e902ced4 100644 --- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt +++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt @@ -21,6 +21,7 @@ Required properties : - "allwinner,sun50i-a64-r-ccu" - "allwinner,sun50i-h5-ccu" - "allwinner,sun50i-h6-ccu" + - "allwinner,sun50i-h6-r-ccu" - "nextthing,gr8-ccu" - reg: Must contain the registers base address and length @@ -35,7 +36,7 @@ Required properties : For the main CCU on H6, one more clock is needed: - "iosc": the SoC's internal frequency oscillator -For the PRCM CCUs on A83T/H3/A64, two more clocks are needed: +For the PRCM CCUs on A83T/H3/A64/H6, two more clocks are needed: - "pll-periph": the SoC's peripheral PLL from the main CCU - "iosc": the SoC's internal frequency oscillator |