1 # SPDX-License-Identifier: GPL-2.0
4 $id: http://devicetree.org/schemas/serial/pl011.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ARM AMBA Primecell PL011 serial UART
10 - Rob Herring <robh@kernel.org>
13 - $ref: /schemas/arm/primecell.yaml#
16 # Need a custom select here or 'arm,primecell' will match on lots of nodes
30 - const: arm,primecell
43 When present, must have one state named "default",
44 and may contain a second name named "sleep". The former
45 state sets up pins for ordinary operation whereas
46 the latter state will put the associated pins to sleep
47 when the UART is unused
55 When present, the first clock listed must correspond to
56 the clock named UARTCLK on the IP block, i.e. the clock
57 to the external serial line, whereas the second clock
58 must correspond to the PCLK clocking the internal logic
59 of the block. Just listing one clock (the first one) is
80 Enables polling when using RX DMA.
85 Rate at which poll occurs when auto-poll is set.
91 Poll timeout when auto-poll is set, default
100 The size (in bytes) of the IO accesses that should be performed
110 poll-rate-ms: [ auto-poll ]
111 poll-timeout-ms: [ auto-poll ]
113 unevaluatedProperties: false
118 compatible = "arm,pl011", "arm,primecell";
119 reg = <0x80120000 0x1000>;
120 interrupts = <0 11 4>;
121 dmas = <&dma 13 0 0x2>, <&dma 13 0 0x0>;
122 dma-names = "rx", "tx";
123 clocks = <&foo_clk>, <&bar_clk>;
124 clock-names = "uartclk", "apb_pclk";