cleaning up dependencies

- remove unused header include
- rewrite ECLIC initialization with NMSIS function

Firmware/RISCV/env_Eclipse/handlers.c

@@ -3,7 +3,7 @@
 #include <stdio.h>
 #include <unistd.h>
 #include "riscv_encoding.h"
-#include "n200_func.h"
+#include "nmsis_core.h"
 
 __attribute__((weak)) uintptr_t handle_nmi()
 {
@@ -20,8 +20,8 @@ __attribute__((weak)) uintptr_t handle_trap(uintptr_t mcause, uintptr_t sp)
   }
   write(1, "trap\n", 5);
   //printf("In trap handler, the mcause is %d\n", mcause);
-  //printf("In trap handler, the mepc is 0x%x\n", read_csr(mepc));
-  //printf("In trap handler, the mtval is 0x%x\n", read_csr(mbadaddr));
+  //printf("In trap handler, the mepc is 0x%x\n", __RV_CSR_READ(mepc));
+  //printf("In trap handler, the mtval is 0x%x\n", __RV_CSR_READ(mbadaddr));
   _exit(mcause);
   return 0;
 }

Firmware/RISCV/env_Eclipse/init.c

@@ -4,16 +4,23 @@
 #include <stdio.h>
 #include <unistd.h>
 #include "riscv_encoding.h"
-#include "n200_func.h"
+#include "nmsis_core.h"
 
 extern uint32_t disable_mcycle_minstret();
 void _init()
 {
 	SystemInit();
 
 	//ECLIC init
-	eclic_init(ECLIC_NUM_INTERRUPTS);
-	eclic_mode_enable();
+	ECLIC->CFG = 0U;
+	ECLIC->MTH = 0U;
+	for(int i=0; i<ECLIC_NUM_INTERRUPTS; i++) {
+		ECLIC->CTRL[i].INTIP   = 0U;
+		ECLIC->CTRL[i].INTIE   = 0U;
+		ECLIC->CTRL[i].INTATTR = 0U;
+		ECLIC->CTRL[i].INTCTRL = 0U;
+	}
+	__set_exc_entry(__RV_CSR_READ(CSR_MTVEC));
 
 	//printf("After ECLIC mode enabled, the mtvec value is %x \n\n\r", read_csr(mtvec));