UART3 on the PG pingroup on the R40 SoC is commonly used to connect the
bluetooth controller in a WiFi+Bluetooth combo chip, with the WiFi bits
also on the PG pingroup.
This patch adds two device nodes for UART3 on PG pingroup, one for the
RX/TX pins, and one for the RTS/CTS pins. Consumers can reference either
just the RX/TX pinmux setting or both, depending on the application.
Signed-off-by: Chen-Yu Tsai <w...@csie.org>
---
arch/arm/boot/dts/sun8i-r40.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
index 89762dbefe42..f1fcfa0bdce0 100644
--- a/arch/arm/boot/dts/sun8i-r40.dtsi
+++ b/arch/arm/boot/dts/sun8i-r40.dtsi
@@ -389,6 +389,16 @@
pins = "PB22", "PB23";
function = "uart0";
};
+
+ uart3_pg_pins: uart3-pg-pins {
+ pins = "PG6", "PG7";
+ function = "uart3";
+ };
+
+ uart3_rts_cts_pg_pins: uart3-rts-cts-pg-pins {
+ pins = "PG8", "PG9";
+ function = "uart3";
+ };
};
wdt: watchdog@1c20c90 {
--
2.20.1
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