dspic: SOC and Board init hooks (zephyrproject-rtos#89)

-Implemented a empty function for soc_early_init_hook
and board_ealry_init_hook

Signed-off-by: Udhayanandhan Jayakumar <[email protected]>

Author: Udhayanandhan-Jayakumar

boards/microchip/dspic33/dspic33a_curiosity/CMakeLists.txt

@@ -0,0 +1,2 @@
+zephyr_library()
+zephyr_library_sources(board.c)

boards/microchip/dspic33/dspic33a_curiosity/board.c

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2025, Microchip Technology Inc.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/init.h>
+#include <zephyr/kernel.h>
+
+void board_early_init_hook(void)
+{
+}

kernel/init.c

@@ -555,14 +555,10 @@ FUNC_NORETURN void z_cstart(void)
 	z_device_state_init();
 
 #if CONFIG_SOC_EARLY_INIT_HOOK
-#ifndef CONFIG_DSPIC
 	soc_early_init_hook();
 #endif
-#endif
 #if CONFIG_BOARD_EARLY_INIT_HOOK
-#ifndef CONFIG_DSPIC
 	board_early_init_hook();
-#endif
 #endif
 	/* perform basic hardware initialization */
 	z_sys_init_run_level(INIT_LEVEL_PRE_KERNEL_1);

soc/microchip/dspic33/dspic33a/CMakeLists.txt

@@ -1,6 +1,7 @@
 zephyr_include_directories(.)
 zephyr_include_directories(${DFP_ROOT}/support/generic/h)
 zephyr_sources_ifdef(CONFIG_PM power.c )
+zephyr_sources(soc.c)
 
 set(SOC_LINKER_SCRIPT
     ${ZEPHYR_BASE}/include/zephyr/arch/dspic/linker.ld
@@ -11,4 +12,4 @@ if(CONFIG_BOARD_DSPIC33A_CURIOSITY_P33AK128MC106)
     zephyr_ld_options(-T ${ZEPHYR_BASE}/soc/microchip/dspic33/dspic33a/p33ak128mc106_regs.ld)
 elseif(CONFIG_BOARD_DSPIC33A_CURIOSITY_P33AK512MPS512)
     zephyr_ld_options(-T ${ZEPHYR_BASE}/soc/microchip/dspic33/dspic33a/p33ak512mps512_regs.ld)
-endif()
+endif()

soc/microchip/dspic33/dspic33a/soc.c

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2025, Microchip Technology Inc.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/device.h>
+#include <zephyr/init.h>
+
+void soc_early_init_hook(void)
+{
+}