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Message-ID: <20221119030444.GE16229@T480>
Date: Sat, 19 Nov 2022 11:04:46 +0800
From: Shawn Guo <shawnguo@...nel.org>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc: s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
linux-imx@....com, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, Peng Fan <peng.fan@....com>,
Marco Felsch <m.felsch@...gutronix.de>
Subject: Re: [PATCH V6 04/12] arm64: dts: imx8mp-evk: enable uart1/3 ports
On Thu, Nov 17, 2022 at 05:53:55PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
>
> Enable uart1/3 ports for evk board.
> Configure the clock to source from IMX8MP_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 <peng.fan@....com>
> Reviewed-by: Marco Felsch <m.felsch@...gutronix.de>
> ---
> arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 36 ++++++++++++++++++++
> 1 file changed, 36 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> index e323e6f4b7e5..29472502d547 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> @@ -412,6 +412,15 @@ &snvs_pwrkey {
> status = "okay";
> };
>
> +&uart1 { /* BT */
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart1>;
> + assigned-clocks = <&clk IMX8MP_CLK_UART1>;
> + assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>;
> + fsl,uart-has-rtscts;
'fsl,uart-has-rtscts' is deprecated, and 'uart-has-rtscts' should be
used instead.
Fixed it up and applied, thanks!
Shawn
> + status = "okay";
> +};
> +
> &uart2 {
> /* console */
> pinctrl-names = "default";
> @@ -434,6 +443,15 @@ &usb_dwc3_1 {
> status = "okay";
> };
>
> +&uart3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart3>;
> + assigned-clocks = <&clk IMX8MP_CLK_UART3>;
> + assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>;
> + fsl,uart-has-rtscts;
> + status = "okay";
> +};
> +
> &usdhc2 {
> assigned-clocks = <&clk IMX8MP_CLK_USDHC2>;
> assigned-clock-rates = <400000000>;
> @@ -609,6 +627,15 @@ MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19 0x40
> >;
> };
>
> + pinctrl_uart1: uart1grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_UART1_RXD__UART1_DCE_RX 0x140
> + MX8MP_IOMUXC_UART1_TXD__UART1_DCE_TX 0x140
> + MX8MP_IOMUXC_UART3_RXD__UART1_DCE_CTS 0x140
> + MX8MP_IOMUXC_UART3_TXD__UART1_DCE_RTS 0x140
> + >;
> + };
> +
> pinctrl_uart2: uart2grp {
> fsl,pins = <
> MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX 0x140
> @@ -622,6 +649,15 @@ MX8MP_IOMUXC_GPIO1_IO14__USB2_OTG_PWR 0x10
> >;
> };
>
> + pinctrl_uart3: uart3grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_ECSPI1_SCLK__UART3_DCE_RX 0x140
> + MX8MP_IOMUXC_ECSPI1_MOSI__UART3_DCE_TX 0x140
> + MX8MP_IOMUXC_ECSPI1_SS0__UART3_DCE_RTS 0x140
> + MX8MP_IOMUXC_ECSPI1_MISO__UART3_DCE_CTS 0x140
> + >;
> + };
> +
> pinctrl_usdhc2: usdhc2grp {
> fsl,pins = <
> MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x190
> --
> 2.37.1
>
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