driver: sleeptimer: siwx917: Add siwx91x Sleeptimer driver

This commit enables the Sleeptimer driver support for the siwx917 device.

Signed-off-by: S Mohamed Fiaz <[email protected]>

Author: fimohame

boards/silabs/radio_boards/siwx917_rb4338a/siwx917_rb4338a.dts

@@ -107,6 +107,10 @@
 	};
 };
 
+&sysrtc0  {
+	status = "okay";
+};
+
 &bt_hci0 {
 	status = "okay";
 };

drivers/timer/Kconfig.silabs

@@ -3,7 +3,7 @@
 
 config SILABS_SLEEPTIMER_TIMER
 	bool "Silabs Sleeptimer system clock driver"
-	depends on SOC_FAMILY_SILABS_S2
+	depends on SOC_FAMILY_SILABS_S2 || SOC_FAMILY_SILABS_SIWX91X
 	depends on DT_HAS_SILABS_GECKO_STIMER_ENABLED
 	select SOC_SILABS_SLEEPTIMER
 	select TICKLESS_CAPABLE

dts/arm/silabs/siwg917.dtsi

@@ -6,6 +6,7 @@
 
 #include <arm/armv7-m.dtsi>
 #include <zephyr/dt-bindings/clock/silabs/siwx91x-clock.h>
+#include <freq.h>
 
 / {
 	chosen {
@@ -285,6 +286,16 @@
 			clocks = <&clock0 SIWX91X_CLK_WATCHDOG>;
 			status = "disabled";
 		};
+
+		sysrtc0: sysrtc@24048c00 {
+			compatible = "silabs,gecko-stimer";
+			reg = <0x24048c00 0x78>;
+			interrupts = <22 0>;
+			interrupt-names = "sysrtc";
+			clock-frequency = <DT_FREQ_K(32)>;
+			prescaler = <1>;
+			status = "disabled";
+		};
 	};
 };
 

modules/hal_silabs/wiseconnect/CMakeLists.txt

@@ -151,5 +151,23 @@ if(CONFIG_WISECONNECT_NETWORK_STACK)
   )
 endif() # CONFIG_WISECONNECT_NETWORK_STACK
 
+if(CONFIG_SOC_SILABS_SLEEPTIMER)
+  zephyr_include_directories(
+    ${SISDK_DIR}/platform/service/sleeptimer/inc
+    ${SISDK_DIR}/platform/service/sleeptimer/src
+    ${SISDK_DIR}/platform/service/sleeptimer/config
+  )
+
+  zephyr_library_sources(
+    ${SISDK_DIR}/platform/service/sleeptimer/src/sl_sleeptimer.c
+    ${WISECONNECT_DIR}/components/device/silabs/si91x/mcu/drivers/service/sleeptimer/src/sl_sleeptimer_hal_si91x_sysrtc.c
+  )
+  zephyr_compile_definitions(
+    SL_CATALOG_SLEEPTIMER_PRESENT
+    SL_CODE_COMPONENT_SLEEPTIMER=sleeptimer
+    SL_CODE_COMPONENT_HAL_SYSRTC=hal_sysrtc
+  )
+endif() # CONFIG_SOC_SILABS_SLEEPTIMER
+
 zephyr_linker_sources(ROM_SECTIONS linker/code_classification_text.ld)
 zephyr_linker_sources(RAMFUNC_SECTION linker/code_classification_ramfunc.ld)

soc/silabs/silabs_siwx91x/Kconfig

@@ -9,3 +9,8 @@ config SOC_FAMILY_SILABS_SIWX91X
 	select CPU_HAS_ARM_MPU
 	select HAS_SILABS_WISECONNECT
 	select HAS_SEGGER_RTT if ZEPHYR_SEGGER_MODULE
+
+config SOC_SILABS_SLEEPTIMER
+	bool
+	help
+	  The Sleeptimer HAL module is used for SIWX91X.

soc/silabs/silabs_siwx91x/Kconfig.defconfig

@@ -3,6 +3,16 @@
 
 if SOC_FAMILY_SILABS_SIWX91X
 
+configdefault SILABS_SLEEPTIMER_TIMER
+	default y
+
+configdefault CORTEX_M_SYSTICK
+	default n if SILABS_SLEEPTIMER_TIMER
+
+configdefault SYS_CLOCK_TICKS_PER_SEC
+	default 128 if !TICKLESS_KERNEL && SILABS_SLEEPTIMER_TIMER
+	default 1024 if SILABS_SLEEPTIMER_TIMER
+
 config WISECONNECT_NETWORK_STACK
 	bool
 	select CMSIS_RTOS_V2

soc/silabs/silabs_siwx91x/siwg917/soc.h

@@ -7,4 +7,6 @@
 
 #include "si91x_device.h"
 
+#define SYSRTC_IRQHandler IRQ022_Handler
+
 #endif