From: Peng Fan Date: Thu, 17 Nov 2022 09:54:01 +0000 (+0800) Subject: arm64: dts: imx8mn-evk: enable uart1 X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a8ea275d16230e5272080d101c3ab88d400f49a6;p=linux.git arm64: dts: imx8mn-evk: enable uart1 Enable uart1 for BT usage Configure the clock to source from IMX8MN_SYS_PLL1_80M, because the uart could only support max 1.5M buadrate if using OSC_24M as clock source. Signed-off-by: Peng Fan Reviewed-by: Marco Felsch Signed-off-by: Shawn Guo --- diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi index 2439b91e51d8c..8fef980c4ab2a 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi @@ -247,6 +247,15 @@ status = "okay"; }; +&uart1 { /* BT */ + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart1>; + assigned-clocks = <&clk IMX8MN_CLK_UART1>; + assigned-clock-parents = <&clk IMX8MN_SYS_PLL1_80M>; + uart-has-rtscts; + status = "okay"; +}; + &uart2 { /* console */ pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart2>; @@ -444,6 +453,15 @@ >; }; + pinctrl_uart1: uart1grp { + fsl,pins = < + MX8MN_IOMUXC_UART1_RXD_UART1_DCE_RX 0x140 + MX8MN_IOMUXC_UART1_TXD_UART1_DCE_TX 0x140 + MX8MN_IOMUXC_UART3_RXD_UART1_DCE_CTS_B 0x140 + MX8MN_IOMUXC_UART3_TXD_UART1_DCE_RTS_B 0x140 + >; + }; + pinctrl_uart2: uart2grp { fsl,pins = < MX8MN_IOMUXC_UART2_RXD_UART2_DCE_RX 0x140