Commit 7db3cde5 authored by Martin Blumenstingl's avatar Martin Blumenstingl Committed by Neil Armstrong
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ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes 



The first UART controller in the "Everything-Else" power domain is
called uart_A. Unlike all other UARTs (which use a 64 byte fifo-size in
hardware) uart_A has a fifo-size of 128 bytes. This UART controller is
typically used for Bluetooth HCI.
The fifo-size of 128 bytes is valid from all SoCs from Meson6 (or
possibly even earlier) all the way up to the latest 64-bit ones.

Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20210604170844.2201229-1-martin.blumenstingl@googlemail.com
parent 6efb943b

arch/arm/boot/dts/meson.dtsi

+1 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ uart_A: serial@84c0 { 
				compatible = "amlogic,meson6-uart", "amlogic,meson-uart";

				reg = <0x84c0 0x18>;

				interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;

				fifo-size = <128>;

				status = "disabled";

			};