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Diffstat (limited to 'Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt')
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1 files changed, 0 insertions, 81 deletions
diff --git a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt b/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt deleted file mode 100644 index 9d098cf73b53..000000000000 --- a/Documentation/devicetree/bindings/serial/qcom,msm-uartdm.txt +++ /dev/null @@ -1,81 +0,0 @@ -* MSM Serial UARTDM - -The MSM serial UARTDM hardware is designed for high-speed use cases where the -transmit and/or receive channels can be offloaded to a dma-engine. From a -software perspective it's mostly compatible with the MSM serial UART except -that it supports reading and writing multiple characters at a time. - -Required properties: -- compatible: Should contain at least "qcom,msm-uartdm". - A more specific property should be specified as follows depending - on the version: - "qcom,msm-uartdm-v1.1" - "qcom,msm-uartdm-v1.2" - "qcom,msm-uartdm-v1.3" - "qcom,msm-uartdm-v1.4" -- reg: Should contain UART register locations and lengths. The first - register shall specify the main control registers. An optional second - register location shall specify the GSBI control region. - "qcom,msm-uartdm-v1.3" is the only compatible value that might - need the GSBI control region. -- interrupts: Should contain UART interrupt. -- clocks: Should contain the core clock and the AHB clock. -- clock-names: Should be "core" for the core clock and "iface" for the - AHB clock. - -Optional properties: -- dmas: Should contain dma specifiers for transmit and receive channels -- dma-names: Should contain "tx" for transmit and "rx" for receive channels -- qcom,tx-crci: Identificator <u32> for Client Rate Control Interface to be - used with TX DMA channel. Required when using DMA for transmission - with UARTDM v1.3 and below. -- qcom,rx-crci: Identificator <u32> for Client Rate Control Interface to be - used with RX DMA channel. Required when using DMA for reception - with UARTDM v1.3 and below. - -Note: Aliases may be defined to ensure the correct ordering of the UARTs. -The alias serialN will result in the UART being assigned port N. If any -serialN alias exists, then an alias must exist for each enabled UART. The -serialN aliases should be in a .dts file instead of in a .dtsi file. - -Examples: - -- A uartdm v1.4 device with dma capabilities. - - serial@f991e000 { - compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm"; - reg = <0xf991e000 0x1000>; - interrupts = <0 108 0x0>; - clocks = <&blsp1_uart2_apps_cxc>, <&blsp1_ahb_cxc>; - clock-names = "core", "iface"; - dmas = <&dma0 0>, <&dma0 1>; - dma-names = "tx", "rx"; - }; - -- A uartdm v1.3 device without dma capabilities and part of a GSBI complex. - - serial@19c40000 { - compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm"; - reg = <0x19c40000 0x1000>, - <0x19c00000 0x1000>; - interrupts = <0 195 0x0>; - clocks = <&gsbi5_uart_cxc>, <&gsbi5_ahb_cxc>; - clock-names = "core", "iface"; - }; - -- serialN alias. - - aliases { - serial0 = &uarta; - serial1 = &uartc; - serial2 = &uartb; - }; - - uarta: serial@12490000 { - }; - - uartb: serial@16340000 { - }; - - uartc: serial@1a240000 { - }; |