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ARM: dts: imx53: Update UART configuration on M53Menlo

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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
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Marek Vasut 2019-05-16 00:45:54 +02:00 committed by Shawn Guo
parent ee3b39eb38
commit 3905e2fea9
1 changed files with 21 additions and 0 deletions
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21
arch/arm/boot/dts/imx53-m53menlo.dts
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@ -244,6 +244,8 @@ pinctrl_uart1: uart1grp {
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 @@ pinctrl_uart2: uart2grp {
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 @@ lvds0_out: endpoint {
&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";
};