| Message ID | 20210604170844.2201229-1-martin.blumenstingl@googlemail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes | expand |
On 04/06/2021 19:08, Martin Blumenstingl wrote: > 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: Martin Blumenstingl <martin.blumenstingl@googlemail.com> > --- > arch/arm/boot/dts/meson.dtsi | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi > index 8bae6ed0abb2..bd0e864964e9 100644 > --- a/arch/arm/boot/dts/meson.dtsi > +++ b/arch/arm/boot/dts/meson.dtsi > @@ -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"; > }; > > Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Hi, On Fri, 4 Jun 2021 19:08:44 +0200, Martin Blumenstingl wrote: > 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. Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (v5.14/dt) [1/1] ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes https://git.kernel.org/amlogic/c/7db3cde5123e2acdd65ff7458628a9835c804b27
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 8bae6ed0abb2..bd0e864964e9 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -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"; };
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: Martin Blumenstingl <martin.blumenstingl@googlemail.com> --- arch/arm/boot/dts/meson.dtsi | 1 + 1 file changed, 1 insertion(+)