Broadcom Kona Family Clocks This binding is associated with Broadcom SoCs having "Kona" style clock control units (CCUs). A CCU is a clock provider that manages a set of clock signals. Each CCU is represented by a node in the device tree. This binding uses the common clock binding: Documentation/devicetree/bindings/clock/clock-bindings.txt Required properties: - compatible Shall have a value of the form "brcm,--ccu", where is a Broadcom SoC model number and is the name of a defined CCU. For example: "brcm,bcm11351-root-ccu" The compatible strings used for each supported SoC family are defined below. - reg Shall define the base and range of the address space containing clock control registers - #clock-cells Shall have value <1>. The permitted clock-specifier values are defined below. - clock-output-names Shall be an ordered list of strings defining the names of the clocks provided by the CCU. Device tree example: slave_ccu: slave_ccu { compatible = "brcm,bcm11351-slave-ccu"; reg = <0x3e011000 0x0f00>; #clock-cells = <1>; clock-output-names = "uartb", "uartb2", "uartb3", "uartb4"; }; ref_crystal_clk: ref_crystal { #clock-cells = <0>; compatible = "fixed-clock"; clock-frequency = <26000000>; }; uart@3e002000 { compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart"; reg = <0x3e002000 0x1000>; clocks = <&slave_ccu BCM281XX_SLAVE_CCU_UARTB3>; interrupts = ; reg-shift = <2>; reg-io-width = <4>; }; BCM281XX family --------------- CCU compatible string values for SoCs in the BCM281XX family are: "brcm,bcm11351-root-ccu" "brcm,bcm11351-aon-ccu" "brcm,bcm11351-hub-ccu" "brcm,bcm11351-master-ccu" "brcm,bcm11351-slave-ccu" The following table defines the set of CCUs and clock specifiers for BCM281XX family clocks. When a clock consumer references a clocks, its symbolic specifier (rather than its numeric index value) should be used. These specifiers are defined in: "include/dt-bindings/clock/bcm281xx.h" CCU Clock Type Index Specifier --- ----- ---- ----- --------- root frac_1m peri 0 BCM281XX_ROOT_CCU_FRAC_1M aon hub_timer peri 0 BCM281XX_AON_CCU_HUB_TIMER aon pmu_bsc peri 1 BCM281XX_AON_CCU_PMU_BSC aon pmu_bsc_var peri 2 BCM281XX_AON_CCU_PMU_BSC_VAR hub tmon_1m peri 0 BCM281XX_HUB_CCU_TMON_1M master sdio1 peri 0 BCM281XX_MASTER_CCU_SDIO1 master sdio2 peri 1 BCM281XX_MASTER_CCU_SDIO2 master sdio3 peri 2 BCM281XX_MASTER_CCU_SDIO3 master sdio4 peri 3 BCM281XX_MASTER_CCU_SDIO4 master dmac peri 4 BCM281XX_MASTER_CCU_DMAC master usb_ic peri 5 BCM281XX_MASTER_CCU_USB_IC master hsic2_48m peri 6 BCM281XX_MASTER_CCU_HSIC_48M master hsic2_12m peri 7 BCM281XX_MASTER_CCU_HSIC_12M slave uartb peri 0 BCM281XX_SLAVE_CCU_UARTB slave uartb2 peri 1 BCM281XX_SLAVE_CCU_UARTB2 slave uartb3 peri 2 BCM281XX_SLAVE_CCU_UARTB3 slave uartb4 peri 3 BCM281XX_SLAVE_CCU_UARTB4 slave ssp0 peri 4 BCM281XX_SLAVE_CCU_SSP0 slave ssp2 peri 5 BCM281XX_SLAVE_CCU_SSP2 slave bsc1 peri 6 BCM281XX_SLAVE_CCU_BSC1 slave bsc2 peri 7 BCM281XX_SLAVE_CCU_BSC2 slave bsc3 peri 8 BCM281XX_SLAVE_CCU_BSC3 slave pwm peri 9 BCM281XX_SLAVE_CCU_PWM BCM21664 family --------------- CCU compatible string values for SoCs in the BCM21664 family are: "brcm,bcm21664-root-ccu" "brcm,bcm21664-aon-ccu" "brcm,bcm21664-master-ccu" "brcm,bcm21664-slave-ccu" The following table defines the set of CCUs and clock specifiers for BCM21664 family clocks. When a clock consumer references a clocks, its symbolic specifier (rather than its numeric index value) should be used. These specifiers are defined in: "include/dt-bindings/clock/bcm21664.h" CCU Clock Type Index Specifier --- ----- ---- ----- --------- root frac_1m peri 0 BCM21664_ROOT_CCU_FRAC_1M aon hub_timer peri 0 BCM21664_AON_CCU_HUB_TIMER master sdio1 peri 0 BCM21664_MASTER_CCU_SDIO1 master sdio2 peri 1 BCM21664_MASTER_CCU_SDIO2 master sdio3 peri 2 BCM21664_MASTER_CCU_SDIO3 master sdio4 peri 3 BCM21664_MASTER_CCU_SDIO4 master sdio1_sleep peri 4 BCM21664_MASTER_CCU_SDIO1_SLEEP master sdio2_sleep peri 5 BCM21664_MASTER_CCU_SDIO2_SLEEP master sdio3_sleep peri 6 BCM21664_MASTER_CCU_SDIO3_SLEEP master sdio4_sleep peri 7 BCM21664_MASTER_CCU_SDIO4_SLEEP slave uartb peri 0 BCM21664_SLAVE_CCU_UARTB slave uartb2 peri 1 BCM21664_SLAVE_CCU_UARTB2 slave uartb3 peri 2 BCM21664_SLAVE_CCU_UARTB3 slave uartb4 peri 3 BCM21664_SLAVE_CCU_UARTB4 slave bsc1 peri 4 BCM21664_SLAVE_CCU_BSC1 slave bsc2 peri 5 BCM21664_SLAVE_CCU_BSC2 slave bsc3 peri 6 BCM21664_SLAVE_CCU_BSC3 slave bsc4 peri 7 BCM21664_SLAVE_CCU_BSC4