From: Hiromitsu Yamasaki <[email protected]> This patch adds pin control for HSCIF1, and supports connection with Debug Serial-1 (CN26) on Salvator boards.
SCIF1 and HSCIF1 are sharing the pins connected to Debug Serial-1 (CN26) on Salvator boards, and it is necessary to ensure that either SCIF1 or HSCIF1 is enabled, not both. As for the default of this DeviceTree, SCIF1 is connected. Signed-off-by: Hiromitsu Yamasaki <[email protected]> Signed-off-by: Takeshi Kihara <[email protected]> [geert: Add missing "uart-has-rtscts"] Signed-off-by: Geert Uytterhoeven <[email protected]> --- v2: - Drop RFC state, - Reword. --- arch/arm64/boot/dts/renesas/salvator-common.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi index d9de075c91df3a06..82623b8f7c2657d8 100644 --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi @@ -353,6 +353,15 @@ clock-frequency = <32768>; }; +&hscif1 { + pinctrl-0 = <&hscif1_pins>; + pinctrl-names = "default"; + + uart-has-rtscts; + /* Please only enable hscif1 or scif1 */ + /* status = "okay"; */ +}; + &hsusb { dr_mode = "otg"; status = "okay"; @@ -558,6 +567,11 @@ function = "du"; }; + hscif1_pins: hscif1 { + groups = "hscif1_data_a", "hscif1_ctrl_a"; + function = "hscif1"; + }; + i2c2_pins: i2c2 { groups = "i2c2_a"; function = "i2c2"; @@ -728,6 +742,7 @@ pinctrl-names = "default"; uart-has-rtscts; + /* Please only enable hscif1 or scif1 */ status = "okay"; }; -- 2.17.1
