ARM: dts: stm32: add uart8 node for stm32h743 MCU

Add support for UART8 by applying the settings specified in the
reference manual RM0433.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/r/20250427074404.3278732-6-dario.binacchi@amarulasolutions.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
[ upstream commit: 07aa43adae2363c3734055aeba0789536fa0f8f2 ]

(cherry picked from commit 8fe35c381c7c6db1b95c80be551afada1e9f28e0)

diff --git a/dts/upstream/src/arm/st/stm32h743.dtsi b/dts/upstream/src/arm/st/stm32h743.dtsi
index b8d4c44c8a82a9058e7cb27ba15246a796556028..2f19cfbc57adcd6b7cf61797586e4c7fb7a3e712 100644 (file)
--- a/dts/upstream/src/arm/st/stm32h743.dtsi
+++ b/dts/upstream/src/arm/st/stm32h743.dtsi
@@ -211,6 +211,14 @@
                        };
                };
 
+               uart8: serial@40007c00 {
+                       compatible = "st,stm32h7-uart";
+                       reg = <0x40007c00 0x400>;
+                       interrupts = <83>;
+                       status = "disabled";
+                       clocks = <&rcc UART8_CK>;
+               };
+
                usart1: serial@40011000 {
                        compatible = "st,stm32h7-uart";
                        reg = <0x40011000 0x400>;