diff options
| author | Tim Harvey <tharvey@gateworks.com> | 2023-06-06 08:38:19 -0700 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-07-17 08:14:46 +0800 |
| commit | 0f8446f02b86167720bab09945f2980ab9c45c0d (patch) | |
| tree | 68a9ec35cd5c4accc27e52002317f1cff6a5186c | |
| parent | efdb4d2346a0d30bb62aff7e895e225daa8540b3 (diff) | |
arm64: dts: imx8mm-venice-gw7904: enable UART1 hardware flow control
On the GW7904 uart1 can use UART3_TX/RX for hardware flow control
which was the desired default configuration. Remove uart3 and configure
uart1 for hardware flow control.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts index 93088fa1c3b9..c12e3f4f800f 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-venice-gw7904.dts @@ -636,6 +636,8 @@ &uart1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart1>; + cts-gpios = <&gpio5 26 GPIO_ACTIVE_LOW>; + rts-gpios = <&gpio5 27 GPIO_ACTIVE_LOW>; status = "okay"; }; @@ -646,13 +648,6 @@ status = "okay"; }; -/* off-board RS232 */ -&uart3 { - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_uart3>; - status = "okay"; -}; - &usbotg1 { dr_mode = "host"; disable-over-current; @@ -814,6 +809,8 @@ fsl,pins = < MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX 0x140 MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX 0x140 + MX8MM_IOMUXC_UART3_RXD_GPIO5_IO26 0x140 /* CTS# in */ + MX8MM_IOMUXC_UART3_TXD_GPIO5_IO27 0x140 /* RTS# out */ >; }; @@ -824,13 +821,6 @@ >; }; - pinctrl_uart3: uart3grp { - fsl,pins = < - MX8MM_IOMUXC_UART3_RXD_UART3_DCE_RX 0x140 - MX8MM_IOMUXC_UART3_TXD_UART3_DCE_TX 0x140 - >; - }; - pinctrl_usdhc2: usdhc2grp { fsl,pins = < MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK 0x190 |