ARM: dts: stm32: add CAN support on stm32f429

Add support for bxcan (Basic eXtended CAN controller) to STM32F429. The
chip contains two CAN peripherals, CAN1 the primary and CAN2 the secondary,
that share some of the required logic like clock and filters. This means
that the secondary CAN can't be used without the primary CAN.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/all/20230328073328.3949796-4-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index c31ceb8..c9e05e3 100644 (file)
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -362,6 +362,35 @@
                        status = "disabled";
                };
 
+               can1: can@40006400 {
+                       compatible = "st,stm32f4-bxcan";
+                       reg = <0x40006400 0x200>;
+                       interrupts = <19>, <20>, <21>, <22>;
+                       interrupt-names = "tx", "rx0", "rx1", "sce";
+                       resets = <&rcc STM32F4_APB1_RESET(CAN1)>;
+                       clocks = <&rcc 0 STM32F4_APB1_CLOCK(CAN1)>;
+                       st,can-primary;
+                       st,gcan = <&gcan>;
+                       status = "disabled";
+               };
+
+               gcan: gcan@40006600 {
+                       compatible = "st,stm32f4-gcan", "syscon";
+                       reg = <0x40006600 0x200>;
+                       clocks = <&rcc 0 STM32F4_APB1_CLOCK(CAN1)>;
+               };
+
+               can2: can@40006800 {
+                       compatible = "st,stm32f4-bxcan";
+                       reg = <0x40006800 0x200>;
+                       interrupts = <63>, <64>, <65>, <66>;
+                       interrupt-names = "tx", "rx0", "rx1", "sce";
+                       resets = <&rcc STM32F4_APB1_RESET(CAN2)>;
+                       clocks = <&rcc 0 STM32F4_APB1_CLOCK(CAN2)>;
+                       st,gcan = <&gcan>;
+                       status = "disabled";
+               };
+
                dac: dac@40007400 {
                        compatible = "st,stm32f4-dac-core";
                        reg = <0x40007400 0x400>;