From: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@xxxxxxxxxxx>
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 <hiromitsu.yamasaki.ym@xxxxxxxxxxx>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
[geert: Add missing "uart-has-rtscts"]
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
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
