diff options
Diffstat (limited to 'Documentation/devicetree/bindings/clock/at91-clock.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/clock/at91-clock.txt | 51 |
1 files changed, 39 insertions, 12 deletions
diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt b/Documentation/devicetree/bindings/clock/at91-clock.txt index 51c259a92d02..8f8f95056f3d 100644 --- a/Documentation/devicetree/bindings/clock/at91-clock.txt +++ b/Documentation/devicetree/bindings/clock/at91-clock.txt @@ -17,14 +17,13 @@ Required properties: "atmel,at91sam9x5-clk-slow-rc-osc": at91 internal slow RC oscillator - "atmel,at91rm9200-pmc" or - "atmel,at91sam9g45-pmc" or - "atmel,at91sam9n12-pmc" or - "atmel,at91sam9x5-pmc" or - "atmel,sama5d3-pmc": + "atmel,<chip>-pmc": at91 PMC (Power Management Controller) All at91 specific clocks (clocks defined below) must be child node of the PMC node. + <chip> can be: at91rm9200, at91sam9260, at91sam9261, + at91sam9263, at91sam9g45, at91sam9n12, at91sam9rl, at91sam9x5, + sama5d2, sama5d3 or sama5d4. "atmel,at91sam9x5-clk-slow" (under sckc node) or @@ -91,6 +90,9 @@ Required properties: at91 audio pll output on AUDIOPLLCLK that feeds the PMC and can be used by peripheral clock or generic clock + "atmel,sama5d2-clk-i2s-mux" (under pmc node): + at91 I2S clock source selection + Required properties for SCKC node: - reg : defines the IO memory reserved for the SCKC. - #size-cells : shall be 0 (reg is used to encode clk id). @@ -180,7 +182,6 @@ For example: }; Required properties for main clock internal RC oscillator: -- interrupt-parent : must reference the PMC node. - interrupts : shall be set to "<0>". - clock-frequency : define the internal RC oscillator frequency. @@ -197,7 +198,6 @@ For example: }; Required properties for main clock oscillator: -- interrupt-parent : must reference the PMC node. - interrupts : shall be set to "<0>". - #clock-cells : from common clock binding; shall be set to 0. - clocks : shall encode the main osc source clk sources (see atmel datasheet). @@ -218,7 +218,6 @@ For example: }; Required properties for main clock: -- interrupt-parent : must reference the PMC node. - interrupts : shall be set to "<0>". - #clock-cells : from common clock binding; shall be set to 0. - clocks : shall encode the main clk sources (see atmel datasheet). @@ -233,7 +232,6 @@ For example: }; Required properties for master clock: -- interrupt-parent : must reference the PMC node. - interrupts : shall be set to "<3>". - #clock-cells : from common clock binding; shall be set to 0. - clocks : shall be the master clock sources (see atmel datasheet) phandles. @@ -292,7 +290,6 @@ For example: Required properties for pll clocks: -- interrupt-parent : must reference the PMC node. - interrupts : shall be set to "<1>". - #clock-cells : from common clock binding; shall be set to 0. - clocks : shall be the main clock phandle. @@ -348,7 +345,6 @@ For example: }; Required properties for programmable clocks: -- interrupt-parent : must reference the PMC node. - #size-cells : shall be 0 (reg is used to encode clk id). - #address-cells : shall be 1 (reg is used to encode clk id). - clocks : shall be the programmable clock source phandles. @@ -451,7 +447,6 @@ For example: Required properties for utmi clock: -- interrupt-parent : must reference the PMC node. - interrupts : shall be set to "<AT91_PMC_LOCKU IRQ_TYPE_LEVEL_HIGH>". - #clock-cells : from common clock binding; shall be set to 0. - clocks : shall be the main clock source phandle. @@ -507,3 +502,35 @@ For example: atmel,clk-output-range = <0 83000000>; }; }; + +Required properties for I2S mux clocks: +- #size-cells : shall be 0 (reg is used to encode I2S bus id). +- #address-cells : shall be 1 (reg is used to encode I2S bus id). +- name: device tree node describing a specific mux clock. + * #clock-cells : from common clock binding; shall be set to 0. + * clocks : shall be the mux clock parent phandles; shall be 2 phandles: + peripheral and generated clock; the first phandle shall belong to the + peripheral clock and the second one shall belong to the generated + clock; "clock-indices" property can be user to specify + the correct order. + * reg: I2S bus id of the corresponding mux clock. + e.g. reg = <0>; for i2s0, reg = <1>; for i2s1 + +For example: + i2s_clkmux { + compatible = "atmel,sama5d2-clk-i2s-mux"; + #address-cells = <1>; + #size-cells = <0>; + + i2s0muxck: i2s0_muxclk { + clocks = <&i2s0_clk>, <&i2s0_gclk>; + #clock-cells = <0>; + reg = <0>; + }; + + i2s1muxck: i2s1_muxclk { + clocks = <&i2s1_clk>, <&i2s1_gclk>; + #clock-cells = <0>; + reg = <1>; + }; + }; |