@@ -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";
};
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 <marex@denx.de> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> To: linux-arm-kernel@lists.infradead.org --- arch/arm/boot/dts/imx53-m53menlo.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)