[PATCH 5.10.y-cip 25/27] arm64: dts: renesas: rzg2l-smarc: Enable SCIF2 on carrier board


Lad Prabhakar
 

commit 5a8aa63c9bca800e6049d90422abe5404227a703 upstream.

SCIF2 interface is available on PMOD1 connector (CN7) on carrier board,
This patch adds pinmux and scif2 node to carrier board dtsi file.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...>
Reviewed-by: Biju Das <biju.das.jz@...>
Link: https://lore.kernel.org/r/20211103195600.23964-4-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@...>
[PL: Manually applied the changes.]
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...>
---
arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi | 28 ++++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi
index a33594575fc4..70aca5d0306d 100644
--- a/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc.dtsi
@@ -8,9 +8,13 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>

+/* comment the #define statement to disable SCIF2 (SER0) on PMOD1 (CN7) */
+#define PMOD1_SER0 1
+
/ {
aliases {
serial0 = &scif0;
+ serial1 = &scif2;
i2c0 = &i2c0;
i2c1 = &i2c1;
i2c3 = &i2c3;
@@ -138,6 +142,13 @@
<RZG2L_PORT_PINMUX(38, 1, 1)>; /* RxD */
};

+ scif2_pins: scif2 {
+ pinmux = <RZG2L_PORT_PINMUX(48, 0, 1)>, /* TxD */
+ <RZG2L_PORT_PINMUX(48, 1, 1)>, /* RxD */
+ <RZG2L_PORT_PINMUX(48, 3, 1)>, /* CTS# */
+ <RZG2L_PORT_PINMUX(48, 4, 1)>; /* RTS# */
+ };
+
usb0_pins: usb0 {
pinmux = <RZG2L_PORT_PINMUX(4, 0, 1)>, /* VBUS */
<RZG2L_PORT_PINMUX(5, 0, 1)>, /* OVC */
@@ -156,6 +167,23 @@
status = "okay";
};

+/*
+ * To enable SCIF2 (SER0) on PMOD1 (CN7)
+ * SW1 should be at position 2->3 so that SER0_CTS# line is activated
+ * SW2 should be at position 2->3 so that SER0_TX line is activated
+ * SW3 should be at position 2->3 so that SER0_RX line is activated
+ * SW4 should be at position 2->3 so that SER0_RTS# line is activated
+ */
+#if PMOD1_SER0
+&scif2 {
+ pinctrl-0 = <&scif2_pins>;
+ pinctrl-names = "default";
+
+ uart-has-rtscts;
+ status = "okay";
+};
+#endif
+
&usb2_phy0 {
pinctrl-0 = <&usb0_pins>;
pinctrl-names = "default";
--
2.17.1

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