From 3905e2fea9498b82150e7d802fc61ede07d74ad7 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Thu, 16 May 2019 00:45:54 +0200 Subject: ARM: dts: imx53: Update UART configuration on M53Menlo Enable flow control lines on UART1 and UART2, add matching pinmux entries. Add and enable UART3 with RS485 mode enabled on boot. Signed-off-by: Marek Vasut Cc: Shawn Guo Cc: Fabio Estevam Cc: NXP Linux Team To: linux-arm-kernel@lists.infradead.org Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx53-m53menlo.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/imx53-m53menlo.dts b/arch/arm/boot/dts/imx53-m53menlo.dts index f0a3fde0739c..62bc6a95a477 100644 --- a/arch/arm/boot/dts/imx53-m53menlo.dts +++ b/arch/arm/boot/dts/imx53-m53menlo.dts @@ -244,6 +244,8 @@ fsl,pins = < MX53_PAD_PATA_DIOW__UART1_TXD_MUX 0x1e4 MX53_PAD_PATA_DMACK__UART1_RXD_MUX 0x1e4 + MX53_PAD_PATA_IORDY__UART1_RTS 0x1e4 + MX53_PAD_PATA_RESET_B__UART1_CTS 0x1e4 >; }; @@ -251,6 +253,16 @@ fsl,pins = < MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX 0x1e4 MX53_PAD_PATA_DMARQ__UART2_TXD_MUX 0x1e4 + MX53_PAD_PATA_DIOR__UART2_RTS 0x1e4 + MX53_PAD_PATA_INTRQ__UART2_CTS 0x1e4 + >; + }; + + pinctrl_uart3: uart3grp { + fsl,pins = < + MX53_PAD_PATA_CS_1__UART3_RXD_MUX 0x1e4 + MX53_PAD_PATA_CS_0__UART3_TXD_MUX 0x1e4 + MX53_PAD_PATA_DA_2__UART3_RTS 0x1e4 >; }; @@ -287,12 +299,21 @@ &uart1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>; + uart-has-rtscts; status = "okay"; }; &uart2 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart2>; + uart-has-rtscts; + status = "okay"; +}; + +&uart3 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_uart3>; + linux,rs485-enabled-at-boot-time; status = "okay"; }; -- cgit v1.2.3