hal: renesas: ra: add a portable for bsp_security.h

Add new implementation for R_BSP_SecurityInit on Zephyr

Signed-off-by: The Nguyen <[email protected]>

Author: thenguyenyf

zephyr/ra/portable/bsp_api.h

@@ -56,15 +56,14 @@
  #include "bsp_group_irq.h"
  #include "bsp_clocks.h"
  #include "bsp_module_stop.h"
- #include "bsp_security.h"
-
+ 
 /* Factory MCU information. */
  #include "fsp_features.h"
 
 /* BSP Common Includes (Other than bsp_common.h) */
  #include "bsp_delay.h"
  #include "bsp_mcu_api.h"
-
+ #include "bsp_security.h"
 #endif
 
 /** Common macro for FSP header files. There is also a corresponding FSP_FOOTER macro at the end of this file. */

drivers/ra/fsp/src/bsp/mcu/all/bsp_security.h renamed to zephyr/ra/portable/bsp_security.h

@@ -26,6 +26,36 @@ FSP_HEADER
  * Exported global functions (to be accessed by other files)
  **********************************************************************************************************************/
 void R_BSP_NonSecureEnter(void);
+void R_BSP_RegisterProtectDisable (bsp_reg_protect_t regs_to_unprotect);
+void R_BSP_RegisterProtectEnable (bsp_reg_protect_t regs_to_protect);
+
+/*******************************************************************************************************************//**
+ * Initialize security features for TrustZone.
+ *
+ * This function initializes ARM security register and Renesas SAR registers for secure projects.
+ *
+ * @note IDAU settings must be configured to match project settings with a separate configuration tool.
+ **********************************************************************************************************************/
+__STATIC_INLINE void R_BSP_SecurityInit (void)
+{
+#if FSP_PRIV_TZ_USE_SECURE_REGS
+	/* Disable protection using PRCR register. */
+	R_BSP_RegisterProtectDisable(BSP_REG_PROTECT_SAR);
+
+	/* Initialize peripherals to secure mode for flat projects */
+	R_PSCU->PSARB = 0;
+	R_PSCU->PSARC = 0;
+	R_PSCU->PSARD = 0;
+	R_PSCU->PSARE = 0;
+
+	R_CPSCU->ICUSARG = 0;
+	R_CPSCU->ICUSARH = 0;
+	R_CPSCU->ICUSARI = 0;
+
+	/* Enable protection using PRCR register. */
+	R_BSP_RegisterProtectEnable(BSP_REG_PROTECT_SAR);
+#endif
+}
 
 /** Common macro for FSP header files. There is also a corresponding FSP_HEADER macro at the top of this file. */
 FSP_FOOTER