Remove aarch64 CPU driver.

20 files changed, 0 insertions, 2758 deletions

diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/SConscript b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/SConscript
deleted file mode 100644
index 0b74223c6f..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/SConscript
+++ /dev/null
@@ -1,13 +0,0 @@
-# RT-Thread building script for component
-
-from building import *
-
-Import('rtconfig')
-
-cwd     = GetCurrentDir()
-src     = Glob('*.c') + Glob('*.cpp') + Glob('*.S')
-CPPPATH = [cwd]
-
-group = DefineGroup('CPU', src, depend = [''], CPPPATH = CPPPATH)
-
-Return('group')
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/armv8.h b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/armv8.h
deleted file mode 100644
index 1e74ced48e..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/armv8.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2011-09-15     Bernard      first version
- */
-
-#ifndef __ARMV8_H__
-#define __ARMV8_H__
-
-/* the exception stack without VFP registers */
-struct rt_hw_exp_stack
-{
-    unsigned long long pc;
-    unsigned long long spsr;
-    unsigned long long x30;
-    unsigned long long xz;
-    unsigned long long x28;
-    unsigned long long x29;
-    unsigned long long x26;
-    unsigned long long x27;
-    unsigned long long x24;
-    unsigned long long x25;
-    unsigned long long x22;
-    unsigned long long x23;
-    unsigned long long x20;
-    unsigned long long x21;
-    unsigned long long x18;
-    unsigned long long x19;
-    unsigned long long x16;
-    unsigned long long x17;
-    unsigned long long x14;
-    unsigned long long x15;
-    unsigned long long x12;
-    unsigned long long x13;
-    unsigned long long x10;
-    unsigned long long x11;
-    unsigned long long x8;
-    unsigned long long x9;
-    unsigned long long x6;
-    unsigned long long x7;
-    unsigned long long x4;
-    unsigned long long x5;
-    unsigned long long x2;
-    unsigned long long x3;
-    unsigned long long x0;
-    unsigned long long x1;
-};
-
-#define SP_ELx                      ( ( unsigned long long ) 0x01 )
-#define SP_EL0                      ( ( unsigned long long ) 0x00 )
-#define PSTATE_EL1                  ( ( unsigned long long ) 0x04 )
-#define PSTATE_EL2                  ( ( unsigned long long ) 0x08 )
-#define PSTATE_EL3                  ( ( unsigned long long ) 0x0c )
-
-rt_ubase_t rt_hw_get_current_el(void);
-void rt_hw_set_elx_env(void);
-void rt_hw_set_current_vbar(rt_ubase_t addr);
-
-#endif
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cache.S b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cache.S
deleted file mode 100644
index 7f295a2b02..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cache.S
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright (c) 2006-2020, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author             Notes
- * 2020-03-17     bigmagic           first version
- */
-
-/*
- * void __asm_dcache_level(level)
- *
- * flush or invalidate one level cache.
- *
- * x0: cache level
- * x1: 0 clean & invalidate, 1 invalidate only
- * x2~x9: clobbered
- */
-.globl __asm_dcache_level
-__asm_dcache_level:
-    lsl    x12, x0, #1
-    msr    csselr_el1, x12        /* select cache level */
-    isb                /* sync change of cssidr_el1 */
-    mrs    x6, ccsidr_el1        /* read the new cssidr_el1 */
-    and    x2, x6, #7        /* x2 <- log2(cache line size)-4 */
-    add    x2, x2, #4        /* x2 <- log2(cache line size) */
-    mov    x3, #0x3ff
-    and    x3, x3, x6, lsr #3    /* x3 <- max number of #ways */
-    clz    w5, w3            /* bit position of #ways */
-    mov    x4, #0x7fff
-    and    x4, x4, x6, lsr #13    /* x4 <- max number of #sets */
-    /* x12 <- cache level << 1 */
-    /* x2 <- line length offset */
-    /* x3 <- number of cache ways - 1 */
-    /* x4 <- number of cache sets - 1 */
-    /* x5 <- bit position of #ways */
-
-loop_set:
-    mov    x6, x3            /* x6 <- working copy of #ways */
-loop_way:
-    lsl    x7, x6, x5
-    orr    x9, x12, x7        /* map way and level to cisw value */
-    lsl    x7, x4, x2
-    orr    x9, x9, x7        /* map set number to cisw value */
-    tbz    w1, #0, 1f
-    dc    isw, x9
-    b    2f
-1:    dc    cisw, x9        /* clean & invalidate by set/way */
-2:    subs    x6, x6, #1        /* decrement the way */
-    b.ge    loop_way
-    subs    x4, x4, #1        /* decrement the set */
-    b.ge    loop_set
-
-    ret
-
-/*
- * void __asm_flush_dcache_all(int invalidate_only)
- *
- * x0: 0 clean & invalidate, 1 invalidate only
- *
- * flush or invalidate all data cache by SET/WAY.
- */
-.globl __asm_dcache_all
-__asm_dcache_all:
-    mov    x1, x0
-    dsb    sy
-    mrs    x10, clidr_el1        /* read clidr_el1 */
-    lsr    x11, x10, #24
-    and    x11, x11, #0x7        /* x11 <- loc */
-    cbz    x11, finished        /* if loc is 0, exit */
-    mov    x15, lr
-    mov    x0, #0            /* start flush at cache level 0 */
-    /* x0  <- cache level */
-    /* x10 <- clidr_el1 */
-    /* x11 <- loc */
-    /* x15 <- return address */
-
-loop_level:
-    lsl    x12, x0, #1
-    add    x12, x12, x0        /* x0 <- tripled cache level */
-    lsr    x12, x10, x12
-    and    x12, x12, #7        /* x12 <- cache type */
-    cmp    x12, #2
-    b.lt    skip            /* skip if no cache or icache */
-    bl    __asm_dcache_level    /* x1 = 0 flush, 1 invalidate */
-skip:
-    add    x0, x0, #1        /* increment cache level */
-    cmp    x11, x0
-    b.gt    loop_level
-
-    mov    x0, #0
-    msr    csselr_el1, x0        /* restore csselr_el1 */
-    dsb    sy
-    isb
-    mov    lr, x15
-
-finished:
-    ret
-
-.globl __asm_flush_dcache_all
-__asm_flush_dcache_all:
-    mov    x0, #0
-    b    __asm_dcache_all
-
-.globl __asm_invalidate_dcache_all
-__asm_invalidate_dcache_all:
-    mov    x0, #0x1
-    b    __asm_dcache_all
-
-/*
- * void __asm_flush_dcache_range(start, end)
- *
- * clean & invalidate data cache in the range
- *
- * x0: start address
- * x1: end address
- */
-.globl __asm_flush_dcache_range
-__asm_flush_dcache_range:
-    mrs    x3, ctr_el0
-    lsr    x3, x3, #16
-    and    x3, x3, #0xf
-    mov    x2, #4
-    lsl    x2, x2, x3        /* cache line size */
-
-    /* x2 <- minimal cache line size in cache system */
-    sub    x3, x2, #1
-    bic    x0, x0, x3
-1:    dc    civac, x0    /* clean & invalidate data or unified cache */
-    add    x0, x0, x2
-    cmp    x0, x1
-    b.lo    1b
-    dsb    sy
-    ret
-
-/*
- * void __asm_invalidate_icache_all(void)
- *
- * invalidate all tlb entries.
- */
-.globl __asm_invalidate_icache_all
-__asm_invalidate_icache_all:
-    ic    ialluis
-    isb    sy
-    ret
-
-.globl __asm_flush_l3_cache
-__asm_flush_l3_cache:
-    mov    x0, #0            /* return status as success */
-    ret
\ No newline at end of file
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/context_gcc.S b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/context_gcc.S
deleted file mode 100644
index f58ea1b15d..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/context_gcc.S
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
- * Copyright (c) 2006-2020, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2018-10-06     ZhaoXiaowei    the first version
- */
-
-.macro SAVE_CONTEXT
-
-    /* Switch to use the EL0 stack pointer. */
-    MSR 	SPSEL, #0
-
-    /* Save the entire context. */
-    STP 	X0, X1, [SP, #-0x10]!
-    STP 	X2, X3, [SP, #-0x10]!
-    STP 	X4, X5, [SP, #-0x10]!
-    STP 	X6, X7, [SP, #-0x10]!
-    STP 	X8, X9, [SP, #-0x10]!
-    STP 	X10, X11, [SP, #-0x10]!
-    STP 	X12, X13, [SP, #-0x10]!
-    STP 	X14, X15, [SP, #-0x10]!
-    STP 	X16, X17, [SP, #-0x10]!
-    STP 	X18, X19, [SP, #-0x10]!
-    STP 	X20, X21, [SP, #-0x10]!
-    STP 	X22, X23, [SP, #-0x10]!
-    STP 	X24, X25, [SP, #-0x10]!
-    STP 	X26, X27, [SP, #-0x10]!
-    STP 	X28, X29, [SP, #-0x10]!
-    STP 	X30, XZR, [SP, #-0x10]!
-
-    MRS		X0, CurrentEL
-    CMP		X0, 0xc
-    B.EQ	3f
-    CMP		X0, 0x8
-    B.EQ	2f
-    CMP		X0, 0x4
-    B.EQ	1f
-    B 		.
-3:
-    MRS		X3, SPSR_EL3
-    /* Save the ELR. */
-    MRS		X2, ELR_EL3
-    B		0f
-2:
-    MRS		X3, SPSR_EL2
-    /* Save the ELR. */
-    MRS		X2, ELR_EL2
-    B		0f
-1:
-    MRS		X3, SPSR_EL1
-    MRS		X2, ELR_EL1
-    B		0f
-0:
-
-    STP 	X2, X3, [SP, #-0x10]!
-
-    MOV 	X0, SP   /* Move SP into X0 for saving. */
-
-    /* Switch to use the ELx stack pointer. */
-    MSR 	SPSEL, #1
-
-    .endm
-
-.macro SAVE_CONTEXT_T
-
-    /* Switch to use the EL0 stack pointer. */
-    MSR 	SPSEL, #0
-
-    /* Save the entire context. */
-    STP 	X0, X1, [SP, #-0x10]!
-    STP 	X2, X3, [SP, #-0x10]!
-    STP 	X4, X5, [SP, #-0x10]!
-    STP 	X6, X7, [SP, #-0x10]!
-    STP 	X8, X9, [SP, #-0x10]!
-    STP 	X10, X11, [SP, #-0x10]!
-    STP 	X12, X13, [SP, #-0x10]!
-    STP 	X14, X15, [SP, #-0x10]!
-    STP 	X16, X17, [SP, #-0x10]!
-    STP 	X18, X19, [SP, #-0x10]!
-    STP 	X20, X21, [SP, #-0x10]!
-    STP 	X22, X23, [SP, #-0x10]!
-    STP 	X24, X25, [SP, #-0x10]!
-    STP 	X26, X27, [SP, #-0x10]!
-    STP 	X28, X29, [SP, #-0x10]!
-    STP 	X30, XZR, [SP, #-0x10]!
-
-    MRS		X0, CurrentEL
-    CMP		X0, 0xc
-    B.EQ	3f
-    CMP		X0, 0x8
-    B.EQ	2f
-    CMP		X0, 0x4
-    B.EQ	1f
-    B 		.
-3:
-    MRS		X3, SPSR_EL3
-    MOV		X2, X30
-    B		0f
-2:
-    MRS		X3, SPSR_EL2
-    MOV		X2, X30
-    B		0f
-1:
-    MRS		X3, SPSR_EL1
-    MOV		X2, X30
-    B		0f
-0:
-
-    STP 	X2, X3, [SP, #-0x10]!
-
-    MOV 	X0, SP   /* Move SP into X0 for saving. */
-
-    /* Switch to use the ELx stack pointer. */
-    MSR 	SPSEL, #1
-
-    .endm
-
-.macro RESTORE_CONTEXT
-
-    /* Switch to use the EL0 stack pointer. */
-    MSR 	SPSEL, #0
-
-    /* Set the SP to point to the stack of the task being restored. */
-    MOV		SP, X0
-
-    LDP 	X2, X3, [SP], #0x10  /* SPSR and ELR. */
-
-    MRS		X0, CurrentEL
-    CMP		X0, 0xc
-    B.EQ	3f
-    CMP		X0, 0x8
-    B.EQ	2f
-    CMP		X0, 0x4
-    B.EQ	1f
-    B 		.
-3:
-    MSR		SPSR_EL3, X3
-    MSR		ELR_EL3, X2
-    B		0f
-2:
-    MSR		SPSR_EL2, X3
-    MSR		ELR_EL2, X2
-    B		0f
-1:
-    MSR		SPSR_EL1, X3
-    MSR		ELR_EL1, X2
-    B		0f
-0:
-
-    LDP 	X30, XZR, [SP], #0x10
-    LDP 	X28, X29, [SP], #0x10
-    LDP 	X26, X27, [SP], #0x10
-    LDP 	X24, X25, [SP], #0x10
-    LDP 	X22, X23, [SP], #0x10
-    LDP 	X20, X21, [SP], #0x10
-    LDP 	X18, X19, [SP], #0x10
-    LDP 	X16, X17, [SP], #0x10
-    LDP 	X14, X15, [SP], #0x10
-    LDP 	X12, X13, [SP], #0x10
-    LDP 	X10, X11, [SP], #0x10
-    LDP 	X8, X9, [SP], #0x10
-    LDP 	X6, X7, [SP], #0x10
-    LDP 	X4, X5, [SP], #0x10
-    LDP 	X2, X3, [SP], #0x10
-    LDP 	X0, X1, [SP], #0x10
-
-    /* Switch to use the ELx stack pointer.  _RB_ Might not be required. */
-    MSR 	SPSEL, #1
-
-    ERET
-
-    .endm
-
-.text
-/*
- * rt_base_t rt_hw_interrupt_disable();
- */
-.globl rt_hw_interrupt_disable
-rt_hw_interrupt_disable:
-    MRS      X0, DAIF
-    MSR      DAIFSet, #3
-    DSB      SY
-    RET
-
-/*
- * void rt_hw_interrupt_enable(rt_base_t level);
- */
-.globl rt_hw_interrupt_enable
-rt_hw_interrupt_enable:
-    DSB     SY
-    MOV     X1, #0xC0
-    ANDS    X0, X0, X1
-    B.NE    rt_hw_interrupt_enable_exit
-    MSR     DAIFClr, #3
-rt_hw_interrupt_enable_exit:
-    RET
-
-/*
- * void rt_hw_context_switch_to(rt_ubase_t to);
- * r0 --> to
- */
-.globl rt_hw_context_switch_to
-rt_hw_context_switch_to:
-    LDR		X0, [X0]
-    RESTORE_CONTEXT
-
-.text
-/*
- * void rt_hw_context_switch(rt_ubase_t from, rt_ubase_t to);
- * r0 --> from
- * r1 --> to
- */
-.globl rt_hw_context_switch
-rt_hw_context_switch:
-
-    MOV		X8,X0
-    MOV		X9,X1
-
-    SAVE_CONTEXT_T
-    
-    STR		X0, [X8]            // store sp in preempted tasks TCB
-    LDR		X0, [X9]            // get new task stack pointer
-    
-    RESTORE_CONTEXT
-
-/*
- * void rt_hw_context_switch_interrupt(rt_ubase_t from, rt_ubase_t to);
- */
-.globl rt_thread_switch_interrupt_flag
-.globl rt_interrupt_from_thread
-.globl rt_interrupt_to_thread
-.globl rt_hw_context_switch_interrupt
-rt_hw_context_switch_interrupt:
-    ADR 	X2, rt_thread_switch_interrupt_flag
-    LDR 	X3, [X2]
-    CMP 	X3, #1
-    B.EQ 	_reswitch
-    ADR 	X4, rt_interrupt_from_thread   // set rt_interrupt_from_thread
-    MOV 	X3, #1              // set rt_thread_switch_interrupt_flag to 1
-    STR 	X0, [X4]
-    STR 	X3, [X2]
-_reswitch:
-    ADR 	X2, rt_interrupt_to_thread     // set rt_interrupt_to_thread
-    STR 	X1, [X2]
-    RET
-
-.text
-
-// -- Exception handlers ----------------------------------
-
-    .align  8
-.globl vector_fiq
-vector_fiq:
-    SAVE_CONTEXT
-    STP 	X0, X1, [SP, #-0x10]!
-    BL      rt_hw_trap_fiq
-    LDP 	X0, X1, [SP], #0x10
-    RESTORE_CONTEXT
-
-.globl      rt_interrupt_enter
-.globl      rt_interrupt_leave
-.globl      rt_thread_switch_interrupt_flag
-.globl      rt_interrupt_from_thread
-.globl      rt_interrupt_to_thread
-
-
-// -------------------------------------------------------------------
-
-    .align  8
-.globl vector_irq
-vector_irq:
-    SAVE_CONTEXT
-    STP 	X0, X1, [SP, #-0x10]!
-
-    BL      rt_interrupt_enter
-    BL      rt_hw_trap_irq
-    BL      rt_interrupt_leave
-    
-    LDP 	X0, X1, [SP], #0x10
-
-    // if rt_thread_switch_interrupt_flag set, jump to
-    // rt_hw_context_switch_interrupt_do and don't return
-    ADR 	X1, rt_thread_switch_interrupt_flag
-    LDR     X2, [X1]
-    CMP     X2, #1
-    B.NE     vector_irq_exit
-
-    MOV     X2,  #0         // clear flag
-    STR     X2,  [X1]
-
-    ADR     X3,  rt_interrupt_from_thread
-    LDR     X4,  [X3]
-    STR     x0,  [X4]       // store sp in preempted tasks's TCB
-
-    ADR     x3,  rt_interrupt_to_thread
-    LDR     X4,  [X3]
-    LDR     x0,  [X4]       // get new task's stack pointer
-    
-vector_irq_exit:	
-    RESTORE_CONTEXT
-
-// -------------------------------------------------
-
-    .align  8
-    .globl  vector_error
-vector_error:
-    SAVE_CONTEXT
-    BL      rt_hw_trap_error
-    B       .
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cp15.h b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cp15.h
deleted file mode 100644
index 7c64f23c9e..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cp15.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2011-09-15     Bernard      first version
- */
-
-#ifndef __CP15_H__
-#define __CP15_H__
-
-#ifndef   __STATIC_FORCEINLINE
-    #define __STATIC_FORCEINLINE     __attribute__((always_inline)) static inline
-#endif
-
-#define __WFI()    __asm__ volatile ("wfi":::"memory")
-
-#define __WFE()    __asm__ volatile ("wfe":::"memory")
-
-#define __SEV()    __asm__ volatile ("sev")
-
-/**
-  \brief   Instruction Synchronization Barrier
-  \details Instruction Synchronization Barrier flushes the pipeline in the processor,
-           so that all instructions following the ISB are fetched from cache or
-           memory, after the instruction has been completed.
- */
-__STATIC_FORCEINLINE  void __ISB(void)
-{
-    __asm__ volatile("isb 0xF":::"memory");
-}
-
-/**
-  \brief   Data Synchronization Barrier
-  \details Acts as a special kind of Data Memory Barrier.
-           It completes when all explicit memory accesses before this instruction complete.
- */
-__STATIC_FORCEINLINE  void __DSB(void)
-{
-    __asm__ volatile("dsb 0xF":::"memory");
-}
-
-/**
-  \brief   Data Memory Barrier
-  \details Ensures the apparent order of the explicit memory operations before
-           and after the instruction, without ensuring their completion.
- */
-__STATIC_FORCEINLINE  void __DMB(void)
-{
-    __asm__ volatile("dmb 0xF":::"memory");
-}
-
-unsigned long rt_cpu_get_smp_id(void);
-
-void rt_cpu_mmu_disable(void);
-void rt_cpu_mmu_enable(void);
-void rt_cpu_tlb_set(volatile unsigned long *);
-
-void rt_cpu_dcache_clean_flush(void);
-void rt_cpu_icache_flush(void);
-
-void rt_cpu_vector_set_base(rt_ubase_t addr);
-void rt_hw_mmu_init(void);
-void rt_hw_vector_init(void);
-
-#endif
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cpu.c b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cpu.c
deleted file mode 100644
index 3f4fe52b46..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cpu.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2011-09-15     Bernard      first version
- * 2019-07-28     zdzn         add smp support
- */
-
-#include <rthw.h>
-#include <rtthread.h>
-#include <board.h>
-#include "cp15.h"
-
-int rt_hw_cpu_id(void)
-{
-    int cpu_id;
-    rt_base_t value;
-
-    __asm__ volatile(
-        "mrs %0, mpidr_el1"
-        :"=r"(value)
-    );
-    cpu_id = value & 0xf;
-    return cpu_id;
-};
-
-#ifdef RT_USING_SMP
-void rt_hw_spin_lock_init(rt_hw_spinlock_t *lock)
-{
-    lock->slock = 0;
-}
-
-void rt_hw_spin_lock(rt_hw_spinlock_t *lock)
-{
-    unsigned long tmp;
-    unsigned long newval;
-    rt_hw_spinlock_t lockval;
-
-    __asm__ __volatile__(
-        "      prfm    pstl1strm, %3\n"
-        "1:    ldaxr    %w0, %3\n"
-        "      add    %w1, %w0, %w5\n"
-        "    stxr    %w2, %w1, %3\n"
-        "    cbnz    %w2, 1b\n"
-        /* Did we get the lock? */
-        "    eor    %w1, %w0, %w0, ror #16\n"
-        "    cbz    %w1, 3f\n"
-        "    sevl\n"
-        "2:    wfe\n"
-        "    ldaxrh    %w2, %4\n"
-        "    eor    %w1, %w2, %w0, lsr #16\n"
-        "    cbnz    %w1, 2b\n"
-        "3:"
-        : "=&r"(lockval), "=&r"(newval), "=&r"(tmp), "+Q"(*lock)
-        : "Q"(lock->slock), "I"(1 << 16)
-        : "memory");
-
-
-}
-
-void rt_hw_spin_unlock(rt_hw_spinlock_t *lock)
-{
-    __DMB();
-    lock->tickets.owner++;
-    __DSB();
-    __SEV();
-}
-#endif /*RT_USING_SMP*/
-
-/**
- * @addtogroup ARM CPU
- */
-/*@{*/
-
-/** shutdown CPU */
-RT_WEAK void rt_hw_cpu_shutdown()
-{
-    rt_uint32_t level;
-    rt_kprintf("shutdown...\n");
-
-    level = rt_hw_interrupt_disable();
-    while (level)
-    {
-        RT_ASSERT(0);
-    }
-}
-
-#ifdef RT_USING_CPU_FFS
-/**
- * This function finds the first bit set (beginning with the least significant bit)
- * in value and return the index of that bit.
- *
- * Bits are numbered starting at 1 (the least significant bit).  A return value of
- * zero from any of these functions means that the argument was zero.
- *
- * @return return the index of the first bit set. If value is 0, then this function
- * shall return 0.
- */
-int __rt_ffs(int value)
-{
-    return __builtin_ffs(value);
-}
-#endif
-
-/*@}*/
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cpu_gcc.S b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cpu_gcc.S
deleted file mode 100644
index b8c8b8768c..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/cpu_gcc.S
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (c) 2006-2020, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Date           Author       Notes
- * 2018-10-06     ZhaoXiaowei    the first version
- */
- 
-.text
-.globl rt_hw_get_current_el
-rt_hw_get_current_el:
-	MRS		X0, CurrentEL
-	CMP		X0, 0xc
-	B.EQ	3f
-	CMP		X0, 0x8
-	B.EQ	2f
-	CMP		X0, 0x4
-	B.EQ	1f
-	
-	LDR		X0, =0
-	B		0f
-3:
-	LDR		X0, =3
-	B		0f
-2:
-	LDR		X0, =2
-	B		0f
-1:
-	LDR		X0, =1
-	B		0f
-0:
-	RET
-
-
-.globl rt_hw_set_current_vbar
-rt_hw_set_current_vbar:
-	MRS		X1, CurrentEL
-	CMP		X1, 0xc
-	B.EQ	3f
-	CMP		X1, 0x8
-	B.EQ	2f
-	CMP		X1, 0x4
-	B.EQ	1f
-	B		0f
-3:
-	MSR		VBAR_EL3,X0
-	B		0f
-2:
-	MSR		VBAR_EL2,X0
-	B		0f
-1:
-	MSR		VBAR_EL1,X0
-	B		0f
-0:
-	RET
-
-    
-.globl rt_hw_set_elx_env
-rt_hw_set_elx_env:
-	MRS		X1, CurrentEL
-	CMP		X1, 0xc
-	B.EQ	3f
-	CMP		X1, 0x8
-	B.EQ	2f
-	CMP		X1, 0x4
-	B.EQ	1f
-	B		0f
-3:
-	MRS		X0, SCR_EL3
-	ORR		X0, X0, #0xF			/* SCR_EL3.NS|IRQ|FIQ|EA */
-	MSR		SCR_EL3, X0
-	B		0f
-2:
-	MRS	X0, HCR_EL2
-	ORR	X0, X0, #0x38
-	MSR	HCR_EL2, X0
-	B		0f
-1:
-	B		0f
-0:
-	RET
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/entry_point.S b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/entry_point.S
deleted file mode 100644
index 2212d07511..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/entry_point.S
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Copyright (c) 2006-2020, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Date           Author       Notes
- * 2021-06-29     Wayne        the first version
- */
-
-/* GICv2 - Distributor Registers */
-#define GICD_CTLR        0x0000
-#define GICD_TYPER       0x0004
-#define GICD_IIDR        0x0008
-#define GICD_STATUSR     0x0010
-#define GICD_SETSPI_NSR  0x0040
-#define GICD_CLRSPI_NSR  0x0048
-#define GICD_SETSPI_SR   0x0050
-#define GICD_CLRSPI_SR   0x0058
-#define GICD_SEIR        0x0068
-#define GICD_IGROUPRn    0x0080
-#define GICD_ISENABLERn  0x0100
-#define GICD_ICENABLERn  0x0180
-#define GICD_ISPENDRn    0x0200
-#define GICD_ICPENDRn    0x0280
-#define GICD_ISACTIVERn  0x0300
-#define GICD_ICACTIVERn  0x0380
-#define GICD_IPRIORITYRn 0x0400
-#define GICD_ITARGETSRn  0x0800
-#define GICD_ICFGR       0x0c00
-#define GICD_IGROUPMODRn 0x0d00
-#define GICD_NSACRn      0x0e00
-#define GICD_SGIR        0x0f00
-#define GICD_CPENDSGIRn  0x0f10
-#define GICD_SPENDSGIRn  0x0f20
-#define GICD_IROUTERn    0x6000
-
-/* GICv2 - CPU Interface Memory Mapped Registers */
-#define GICC_CTLR        0x0000
-#define GICC_PMR         0x0004
-#define GICC_BPR         0x0008
-#define GICC_IAR         0x000C
-#define GICC_EOIR        0x0010
-#define GICC_RPR         0x0014
-#define GICC_HPPIR       0x0018
-#define GICC_ABPR        0x001c
-#define GICC_AIAR        0x0020
-#define GICC_AEOIR       0x0024
-#define GICC_AHPPIR      0x0028
-#define GICC_APRn        0x00d0
-#define GICC_NSAPRn      0x00e0
-#define GICC_IIDR        0x00fc
-#define GICC_DIR         0x1000
-
-.section ".text.entrypoint"
-.global _start
-
-_start:
-    /*=============================================================*/
-    /*      Read CPU id                                            */
-    /*      Primary core(id=0): Help Secondary core leaving.       */
-    /*      Secondary core(id>0): Notice 'Ready' to Primary core.  */
-    /*=============================================================*/
-    /* MPIDR_EL1: Multi-Processor Affinity Register */
-    mrs     x1, mpidr_el1
-    and     x1, x1, #3
-    cbz     x1, .L__cpu_0
-
-.L__current_cpu_idle:
-    /*=============================================================*/
-    /*      Secondary CPUs                                         */
-    /*=============================================================*/
-    wfe
-    b       .L__current_cpu_idle
-
-.L__cpu_0:
-
-    /*=============================================================*/
-    /*      Initialize Gtimer. Set frequency to 12MHz.             */
-    /*=============================================================*/
-    mov     x0, #0x1B00
-    movk    x0, #0xB7, LSL #16
-    msr     CNTFRQ_EL0, x0
-
-    /*=============================================================*/
-    /*      Enable GICv2.                                          */
-    /*      Assign all IRQs to secure group.                       */
-    /*=============================================================*/
-    /* Route to secure Group */
-    mov     x0, #0x1000
-    movk    x0, #0x5080, LSL #16
-    mov     w9, #0x3
-    str     w9, [x0, GICD_CTLR]
-    ldr     w9, [x0, GICD_TYPER]
-    and     w10, w9, #0x1f
-    cbz     w10, 1f
-    add     x11, x0, GICD_IGROUPRn
-    mov     w9, #0
-    str     w9, [x11], #0x04
-0:  str     w9, [x11], #0x04
-    sub     w10,  w10, #0x1
-    cbnz    w10,  0b
-
-    mov     x1, #0x2000
-    movk    x1, #0x5080, LSL #16
-    mov     w0,  #3
-    str     w0,  [x1]
-
-    mov     w0, #1 << 7
-    str     w0, [x1, #4]
-1:
-    mov     x0, #0x1000
-    movk    x0, #0x5080, LSL #16
-    mov     x1, #0x2000
-    movk    x1, #0x5080, LSL #16
-
-    mov     w9, #0
-    str     w9, [x0, GICD_IGROUPRn]
-    mov     w9, #0x1
-    str     w9, [x0, GICD_ISENABLERn]
-
-    mov     w9, #0x1e7
-    str     w9, [x1, GICC_CTLR]
-
-    mov     w9, #0x1 << 7
-    str     w9, [x1, GICC_PMR]
-
-    /*=============================================================*/
-    /*      Enable the SMP bit.                                    */
-    /*=============================================================*/
-    mrs x0, S3_1_C15_C2_1
-    orr x0, x0, #(1<<6)
-    msr S3_1_C15_C2_1, x0
-
-    /*=============================================================*/
-    /*      Enable FP/SIMD at EL1                                  */
-    /*=============================================================*/
-    mov	x0, #(3 << 20)
-    msr	cpacr_el1, x0               /* Enable FP/SIMD at EL1 */
-
-    /*=============================================================*/
-    /*      Initialize sctlr_el1                                   */
-    /*=============================================================*/
-    mov x0, xzr
-    orr x0, x0, #(1 << 29)          /* Enable LSMAOE at EL1 */
-    orr x0, x0, #(1 << 28)          /* Enable nTLSMD at EL1 */
-    orr x0, x0, #(1 << 23)          /* Enable SPAN at EL1 */
-    orr x0, x0, #(1 << 22)          /* Enable EIS at EL1 */
-    orr x0, x0, #(1 << 20)          /* Enable TSCXT at EL1 */
-    orr x0, x0, #(1 << 11)          /* Enable EOS at EL1 */
-    msr sctlr_el1, x0
-
-    /*=============================================================*/
-    /*      Initialize scr_el3                                     */
-    /*=============================================================*/
-    mov x0, xzr
-    orr x0, x0, #(1 << 10)          /* Enable AARCH64 */
-    orr x0, x0, #(1 << 9)           /* Enable SIF */
-    orr x0, x0, #(1 << 8)           /* Enable HCE */
-    orr x0, x0, #(1 << 7)           /* Enable SMD */
-    orr x0, x0, #(1 << 5)           /* RES1[5:4] */
-    orr x0, x0, #(1 << 4)
-    /* Disable FIQ routing */
-    /* Disable IRQ routing */
-    /* Disable NS */
-    msr scr_el3, x0
-
-    /*=============================================================*/
-    /*      Initialize spsr_el3                                    */
-    /*=============================================================*/
-    mov x0, xzr
-    mov x0, #0b00101          /* AARCH64_EL1 */
-    orr x0, x0, #(1 << 8)     /* Enable SError and External Abort. */
-    orr x0, x0, #(1 << 7)     /* IRQ interrupt Process state mask. */
-    orr x0, x0, #(1 << 6)     /* FIQ interrupt Process state mask. */
-    msr spsr_el3, x0
-
-    /*=============================================================*/
-    /*      Initialize elr_el3                                     */
-    /*      Jump to Secure EL1 from EL3.                   */
-    /*=============================================================*/
-    adr x0, .aarch64_code     /* Exception return to aarch64_code  */
-    msr elr_el3, x0
-    eret
-
-.aarch64_code:
-    ldr     x1, =_start
-    mov     sp, x1
-
-    /*=============================================================*/
-    /*      clear bbs                                             */
-    /*=============================================================*/
-    ldr     x1, =__bss_start
-    ldr     w2, =__bss_size
-
-.L__clean_bss_loop:
-    cbz     w2, .L__jump_to_entry
-    str     xzr, [x1], #8
-    sub     w2, w2, #1
-    cbnz    w2, .L__clean_bss_loop
-
-    /*=============================================================*/
-    /*     jump to C code                                          */
-    /*=============================================================*/
-.L__jump_to_entry:
-
-    bl      entry
-
-    /*=============================================================*/
-    /*     for failsafe, halt this core too                        */
-    /*=============================================================*/
-
-    b       .L__current_cpu_idle
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gic.c b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gic.c
deleted file mode 100644
index 3559969042..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gic.c
+++ /dev/null
@@ -1,491 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2013-07-20     Bernard      first version
- * 2014-04-03     Grissiom     many enhancements
- * 2018-11-22     Jesven       add rt_hw_ipi_send()
- *                             add rt_hw_ipi_handler_install()
- */
-
-#include <rthw.h>
-#include <rtthread.h>
-
-#include "gic.h"
-#include "cp15.h"
-
-struct arm_gic
-{
-    rt_uint32_t offset;         /* the first interrupt index in the vector table */
-
-    rt_uint32_t dist_hw_base;   /* the base address of the gic distributor */
-    rt_uint32_t cpu_hw_base;    /* the base addrees of the gic cpu interface */
-};
-
-/* 'ARM_GIC_MAX_NR' is the number of cores */
-static struct arm_gic _gic_table[ARM_GIC_MAX_NR];
-
-/** Macro to access the Generic Interrupt Controller Interface (GICC)
-*/
-#define GIC_CPU_CTRL(hw_base)               __REG32((hw_base) + 0x00U)
-#define GIC_CPU_PRIMASK(hw_base)            __REG32((hw_base) + 0x04U)
-#define GIC_CPU_BINPOINT(hw_base)           __REG32((hw_base) + 0x08U)
-#define GIC_CPU_INTACK(hw_base)             __REG32((hw_base) + 0x0cU)
-#define GIC_CPU_EOI(hw_base)                __REG32((hw_base) + 0x10U)
-#define GIC_CPU_RUNNINGPRI(hw_base)         __REG32((hw_base) + 0x14U)
-#define GIC_CPU_HIGHPRI(hw_base)            __REG32((hw_base) + 0x18U)
-#define GIC_CPU_IIDR(hw_base)               __REG32((hw_base) + 0xFCU)
-
-/** Macro to access the Generic Interrupt Controller Distributor (GICD)
-*/
-#define GIC_DIST_CTRL(hw_base)              __REG32((hw_base) + 0x000U)
-#define GIC_DIST_TYPE(hw_base)              __REG32((hw_base) + 0x004U)
-#define GIC_DIST_IGROUP(hw_base, n)         __REG32((hw_base) + 0x080U + ((n)/32U) * 4U)
-#define GIC_DIST_ENABLE_SET(hw_base, n)     __REG32((hw_base) + 0x100U + ((n)/32U) * 4U)
-#define GIC_DIST_ENABLE_CLEAR(hw_base, n)   __REG32((hw_base) + 0x180U + ((n)/32U) * 4U)
-#define GIC_DIST_PENDING_SET(hw_base, n)    __REG32((hw_base) + 0x200U + ((n)/32U) * 4U)
-#define GIC_DIST_PENDING_CLEAR(hw_base, n)  __REG32((hw_base) + 0x280U + ((n)/32U) * 4U)
-#define GIC_DIST_ACTIVE_SET(hw_base, n)     __REG32((hw_base) + 0x300U + ((n)/32U) * 4U)
-#define GIC_DIST_ACTIVE_CLEAR(hw_base, n)   __REG32((hw_base) + 0x380U + ((n)/32U) * 4U)
-#define GIC_DIST_PRI(hw_base, n)            __REG32((hw_base) + 0x400U +  ((n)/4U) * 4U)
-#define GIC_DIST_TARGET(hw_base, n)         __REG32((hw_base) + 0x800U +  ((n)/4U) * 4U)
-#define GIC_DIST_CONFIG(hw_base, n)         __REG32((hw_base) + 0xc00U + ((n)/16U) * 4U)
-#define GIC_DIST_SOFTINT(hw_base)           __REG32((hw_base) + 0xf00U)
-#define GIC_DIST_CPENDSGI(hw_base, n)       __REG32((hw_base) + 0xf10U + ((n)/4U) * 4U)
-#define GIC_DIST_SPENDSGI(hw_base, n)       __REG32((hw_base) + 0xf20U + ((n)/4U) * 4U)
-#define GIC_DIST_ICPIDR2(hw_base)           __REG32((hw_base) + 0xfe8U)
-
-static unsigned int _gic_max_irq;
-
-int arm_gic_get_active_irq(rt_uint32_t index)
-{
-    int irq;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = GIC_CPU_INTACK(_gic_table[index].cpu_hw_base);
-    irq += _gic_table[index].offset;
-    return irq;
-}
-
-void arm_gic_ack(rt_uint32_t index, int irq)
-{
-    rt_uint32_t mask = 1U << (irq % 32U);
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    GIC_DIST_PENDING_CLEAR(_gic_table[index].dist_hw_base, irq) = mask;
-    GIC_CPU_EOI(_gic_table[index].cpu_hw_base) = irq;
-}
-
-void arm_gic_mask(rt_uint32_t index, int irq)
-{
-    rt_uint32_t mask = 1U << (irq % 32U);
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    GIC_DIST_ENABLE_CLEAR(_gic_table[index].dist_hw_base, irq) = mask;
-}
-
-void arm_gic_umask(rt_uint32_t index, int irq)
-{
-    rt_uint32_t mask = 1U << (irq % 32U);
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    GIC_DIST_ENABLE_SET(_gic_table[index].dist_hw_base, irq) = mask;
-}
-
-rt_uint32_t arm_gic_get_pending_irq(rt_uint32_t index, int irq)
-{
-    rt_uint32_t pend;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    if (irq >= 16U)
-    {
-        pend = (GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base, irq) >> (irq % 32U)) & 0x1UL;
-    }
-    else
-    {
-        /* INTID 0-15 Software Generated Interrupt */
-        pend = (GIC_DIST_SPENDSGI(_gic_table[index].dist_hw_base, irq) >> ((irq % 4U) * 8U)) & 0xFFUL;
-        /* No CPU identification offered */
-        if (pend != 0U)
-        {
-            pend = 1U;
-        }
-        else
-        {
-            pend = 0U;
-        }
-    }
-
-    return (pend);
-}
-
-void arm_gic_set_pending_irq(rt_uint32_t index, int irq)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    if (irq >= 16U)
-    {
-        GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base, irq) = 1U << (irq % 32U);
-    }
-    else
-    {
-        /* INTID 0-15 Software Generated Interrupt */
-        /* Forward the interrupt to the CPU interface that requested it */
-        GIC_DIST_SOFTINT(_gic_table[index].dist_hw_base) = (irq | 0x02000000U);
-    }
-}
-
-void arm_gic_clear_pending_irq(rt_uint32_t index, int irq)
-{
-    rt_uint32_t mask;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    if (irq >= 16U)
-    {
-        mask = 1U << (irq % 32U);
-        GIC_DIST_PENDING_CLEAR(_gic_table[index].dist_hw_base, irq) = mask;
-    }
-    else
-    {
-        mask =  1U << ((irq % 4U) * 8U);
-        GIC_DIST_CPENDSGI(_gic_table[index].dist_hw_base, irq) = mask;
-    }
-}
-
-void arm_gic_set_configuration(rt_uint32_t index, int irq, uint32_t config)
-{
-    rt_uint32_t icfgr;
-    rt_uint32_t shift;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    icfgr = GIC_DIST_CONFIG(_gic_table[index].dist_hw_base, irq);
-    shift = (irq % 16U) << 1U;
-
-    icfgr &= (~(3U << shift));
-    icfgr |= (config << shift);
-
-    GIC_DIST_CONFIG(_gic_table[index].dist_hw_base, irq) = icfgr;
-}
-
-rt_uint32_t arm_gic_get_configuration(rt_uint32_t index, int irq)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    return (GIC_DIST_CONFIG(_gic_table[index].dist_hw_base, irq) >> ((irq % 16U) >> 1U));
-}
-
-void arm_gic_clear_active(rt_uint32_t index, int irq)
-{
-    rt_uint32_t mask = 1U << (irq % 32U);
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    GIC_DIST_ACTIVE_CLEAR(_gic_table[index].dist_hw_base, irq) = mask;
-}
-
-/* Set up the cpu mask for the specific interrupt */
-void arm_gic_set_cpu(rt_uint32_t index, int irq, unsigned int cpumask)
-{
-    rt_uint32_t old_tgt;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    old_tgt = GIC_DIST_TARGET(_gic_table[index].dist_hw_base, irq);
-
-    old_tgt &= ~(0x0FFUL << ((irq % 4U) * 8U));
-    old_tgt |= cpumask << ((irq % 4U) * 8U);
-
-    GIC_DIST_TARGET(_gic_table[index].dist_hw_base, irq) = old_tgt;
-}
-
-rt_uint32_t arm_gic_get_target_cpu(rt_uint32_t index, int irq)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    return (GIC_DIST_TARGET(_gic_table[index].dist_hw_base, irq) >> ((irq % 4U) * 8U)) & 0xFFUL;
-}
-
-void arm_gic_set_priority(rt_uint32_t index, int irq, rt_uint32_t priority)
-{
-    rt_uint32_t mask;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    mask = GIC_DIST_PRI(_gic_table[index].dist_hw_base, irq);
-    mask &= ~(0xFFUL << ((irq % 4U) * 8U));
-    mask |= ((priority & 0xFFUL) << ((irq % 4U) * 8U));
-    GIC_DIST_PRI(_gic_table[index].dist_hw_base, irq) = mask;
-}
-
-rt_uint32_t arm_gic_get_priority(rt_uint32_t index, int irq)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    return (GIC_DIST_PRI(_gic_table[index].dist_hw_base, irq) >> ((irq % 4U) * 8U)) & 0xFFUL;
-}
-
-void arm_gic_set_interface_prior_mask(rt_uint32_t index, rt_uint32_t priority)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    /* set priority mask */
-    GIC_CPU_PRIMASK(_gic_table[index].cpu_hw_base) = priority & 0xFFUL;
-}
-
-rt_uint32_t arm_gic_get_interface_prior_mask(rt_uint32_t index)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    return GIC_CPU_PRIMASK(_gic_table[index].cpu_hw_base);
-}
-
-void arm_gic_set_binary_point(rt_uint32_t index, rt_uint32_t binary_point)
-{
-    GIC_CPU_BINPOINT(_gic_table[index].cpu_hw_base) = binary_point & 0x7U;
-}
-
-rt_uint32_t arm_gic_get_binary_point(rt_uint32_t index)
-{
-    return GIC_CPU_BINPOINT(_gic_table[index].cpu_hw_base);
-}
-
-rt_uint32_t arm_gic_get_irq_status(rt_uint32_t index, int irq)
-{
-    rt_uint32_t pending;
-    rt_uint32_t active;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    active = (GIC_DIST_ACTIVE_SET(_gic_table[index].dist_hw_base, irq) >> (irq % 32U)) & 0x1UL;
-    pending = (GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base, irq) >> (irq % 32U)) & 0x1UL;
-
-    return ((active << 1U) | pending);
-}
-
-void arm_gic_send_sgi(rt_uint32_t index, int irq, rt_uint32_t target_list, rt_uint32_t filter_list)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    GIC_DIST_SOFTINT(_gic_table[index].dist_hw_base) = ((filter_list & 0x3U) << 24U) | ((target_list & 0xFFUL) << 16U) | (irq & 0x0FUL);
-}
-
-rt_uint32_t arm_gic_get_high_pending_irq(rt_uint32_t index)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    return GIC_CPU_HIGHPRI(_gic_table[index].cpu_hw_base);
-}
-
-rt_uint32_t arm_gic_get_interface_id(rt_uint32_t index)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    return GIC_CPU_IIDR(_gic_table[index].cpu_hw_base);
-}
-
-void arm_gic_set_group(rt_uint32_t index, int irq, rt_uint32_t group)
-{
-    uint32_t igroupr;
-    uint32_t shift;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-    RT_ASSERT(group <= 1U);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    igroupr = GIC_DIST_IGROUP(_gic_table[index].dist_hw_base, irq);
-    shift = (irq % 32U);
-    igroupr &= (~(1U << shift));
-    igroupr |= ((group & 0x1U) << shift);
-
-    GIC_DIST_IGROUP(_gic_table[index].dist_hw_base, irq) = igroupr;
-}
-
-rt_uint32_t arm_gic_get_group(rt_uint32_t index, int irq)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    irq = irq - _gic_table[index].offset;
-    RT_ASSERT(irq >= 0U);
-
-    return (GIC_DIST_IGROUP(_gic_table[index].dist_hw_base, irq) >> (irq % 32U)) & 0x1UL;
-}
-
-int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start)
-{
-    unsigned int gic_type, i;
-    rt_uint32_t cpumask = 1U << 0U;
-
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    _gic_table[index].dist_hw_base = dist_base;
-    _gic_table[index].offset = irq_start;
-
-    /* Find out how many interrupts are supported. */
-    gic_type = GIC_DIST_TYPE(dist_base);
-    _gic_max_irq = ((gic_type & 0x1fU) + 1U) * 32U;
-
-    /*
-     * The GIC only supports up to 1020 interrupt sources.
-     * Limit this to either the architected maximum, or the
-     * platform maximum.
-     */
-    if (_gic_max_irq > 1020U)
-        _gic_max_irq = 1020U;
-    if (_gic_max_irq > ARM_GIC_NR_IRQS) /* the platform maximum interrupts */
-        _gic_max_irq = ARM_GIC_NR_IRQS;
-
-    cpumask |= cpumask << 8U;
-    cpumask |= cpumask << 16U;
-    cpumask |= cpumask << 24U;
-
-    GIC_DIST_CTRL(dist_base) = 0x0U;
-
-    /* Set all global interrupts to be level triggered, active low. */
-    for (i = 32U; i < _gic_max_irq; i += 16U)
-        GIC_DIST_CONFIG(dist_base, i) = 0x0U;
-
-    /* Set all global interrupts to this CPU only. */
-    for (i = 32U; i < _gic_max_irq; i += 4U)
-        GIC_DIST_TARGET(dist_base, i) = cpumask;
-
-    /* Set priority on all interrupts. */
-    for (i = 0U; i < _gic_max_irq; i += 4U)
-        GIC_DIST_PRI(dist_base, i) = 0xa0a0a0a0U;
-
-    /* Disable all interrupts. */
-    for (i = 0U; i < _gic_max_irq; i += 32U)
-        GIC_DIST_ENABLE_CLEAR(dist_base, i) = 0xffffffffU;
-
-    /* Important: Below setting need be done in Secure world. */
-    for (i = 0U; i < _gic_max_irq; i += 32U)
-        GIC_DIST_IGROUP(dist_base, i) = 0U;
-
-    /* Enable group0 interrupt forwarding. */
-    GIC_DIST_CTRL(dist_base) = 0x01U;
-
-    return 0;
-}
-
-int arm_gic_cpu_init(rt_uint32_t index, rt_uint32_t cpu_base)
-{
-    RT_ASSERT(index < ARM_GIC_MAX_NR);
-
-    _gic_table[index].cpu_hw_base = cpu_base;
-
-    GIC_CPU_PRIMASK(cpu_base) = 0xf0U;
-    GIC_CPU_BINPOINT(cpu_base) = 0x7U;
-    /* Enable CPU interrupt */
-    GIC_CPU_CTRL(cpu_base) = 0x01U;
-
-    return 0;
-}
-
-void arm_gic_dump_type(rt_uint32_t index)
-{
-    unsigned int gic_type;
-
-    gic_type = GIC_DIST_TYPE(_gic_table[index].dist_hw_base);
-    rt_kprintf("GICv%d on %p, max IRQs: %d, %s security extension(%08x)\n",
-               (GIC_DIST_ICPIDR2(_gic_table[index].dist_hw_base) >> 4U) & 0xfUL,
-               _gic_table[index].dist_hw_base,
-               _gic_max_irq,
-               gic_type & (1U << 10U) ? "has" : "no",
-               gic_type);
-}
-
-void arm_gic_dump(rt_uint32_t index)
-{
-    unsigned int i, k;
-
-    k = GIC_CPU_HIGHPRI(_gic_table[index].cpu_hw_base);
-    rt_kprintf("--- high pending priority: %d(%08x)\n", k, k);
-    rt_kprintf("--- hw mask ---\n");
-    for (i = 0U; i < _gic_max_irq / 32U; i++)
-    {
-        rt_kprintf("0x%08x, ",
-                   GIC_DIST_ENABLE_SET(_gic_table[index].dist_hw_base,
-                                       i * 32U));
-    }
-    rt_kprintf("\n--- hw pending ---\n");
-    for (i = 0U; i < _gic_max_irq / 32U; i++)
-    {
-        rt_kprintf("0x%08x, ",
-                   GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base,
-                                        i * 32U));
-    }
-    rt_kprintf("\n--- hw active ---\n");
-    for (i = 0U; i < _gic_max_irq / 32U; i++)
-    {
-        rt_kprintf("0x%08x, ",
-                   GIC_DIST_ACTIVE_SET(_gic_table[index].dist_hw_base,
-                                       i * 32U));
-    }
-    rt_kprintf("\n");
-}
-
-long gic_dump(void)
-{
-    arm_gic_dump_type(0);
-    arm_gic_dump(0);
-
-    return 0;
-}
-MSH_CMD_EXPORT(gic_dump, show gic status);
-
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gic.h b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gic.h
deleted file mode 100644
index c896442f8b..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gic.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2013-07-20     Bernard      first version
- */
-
-#ifndef __GIC_H__
-#define __GIC_H__
-
-#include <rthw.h>
-#include <board.h>
-
-int arm_gic_get_active_irq(rt_uint32_t index);
-void arm_gic_ack(rt_uint32_t index, int irq);
-
-void arm_gic_mask(rt_uint32_t index, int irq);
-void arm_gic_umask(rt_uint32_t index, int irq);
-
-rt_uint32_t arm_gic_get_pending_irq(rt_uint32_t index, int irq);
-void arm_gic_set_pending_irq(rt_uint32_t index, int irq);
-void arm_gic_clear_pending_irq(rt_uint32_t index, int irq);
-
-void arm_gic_set_configuration(rt_uint32_t index, int irq, uint32_t config);
-rt_uint32_t arm_gic_get_configuration(rt_uint32_t index, int irq);
-
-void arm_gic_clear_active(rt_uint32_t index, int irq);
-
-void arm_gic_set_cpu(rt_uint32_t index, int irq, unsigned int cpumask);
-rt_uint32_t arm_gic_get_target_cpu(rt_uint32_t index, int irq);
-
-void arm_gic_set_priority(rt_uint32_t index, int irq, rt_uint32_t priority);
-rt_uint32_t arm_gic_get_priority(rt_uint32_t index, int irq);
-
-void arm_gic_set_interface_prior_mask(rt_uint32_t index, rt_uint32_t priority);
-rt_uint32_t arm_gic_get_interface_prior_mask(rt_uint32_t index);
-
-void arm_gic_set_binary_point(rt_uint32_t index, rt_uint32_t binary_point);
-rt_uint32_t arm_gic_get_binary_point(rt_uint32_t index);
-
-rt_uint32_t arm_gic_get_irq_status(rt_uint32_t index, int irq);
-
-void arm_gic_send_sgi(rt_uint32_t index, int irq, rt_uint32_t target_list, rt_uint32_t filter_list);
-
-rt_uint32_t arm_gic_get_high_pending_irq(rt_uint32_t index);
-
-rt_uint32_t arm_gic_get_interface_id(rt_uint32_t index);
-
-void arm_gic_set_group(rt_uint32_t index, int irq, rt_uint32_t group);
-rt_uint32_t arm_gic_get_group(rt_uint32_t index, int irq);
-
-int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start);
-int arm_gic_cpu_init(rt_uint32_t index, rt_uint32_t cpu_base);
-
-void arm_gic_dump_type(rt_uint32_t index);
-void arm_gic_dump(rt_uint32_t index);
-
-#endif
-
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gtimer.S b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gtimer.S
deleted file mode 100644
index ed18ae8d41..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gtimer.S
+++ /dev/null
@@ -1,44 +0,0 @@
-#include "rtconfig.h"
-
-/*
- *enable gtimer
- */
-.globl gtimer_set_control
-gtimer_set_control:
-	MSR CNTP_CTL_EL0, X0
-	RET
-
-/*
- *set gtimer CNTP_TVAL_EL0 value
- */
-
-.globl gtimer_set_load_value
-gtimer_set_load_value:
-	MSR CNTP_TVAL_EL0,X0
-	RET
-
-/*
- *get gtimer CNTP_TVAL_EL0 value
- */
-.globl rt_hw_get_gtimer_val
-rt_hw_get_gtimer_val:
-	MRS X0,CNTP_TVAL_EL0
-	RET
-
-.globl gtimer_get_current_value
-gtimer_get_current_value:
-	MRS X0,CNTP_TVAL_EL0
-	RET
-
-.globl rt_hw_get_cntpct_val
-rt_hw_get_cntpct_val:
-	MRS X0, CNTPCT_EL0
-	RET
-
-/*
- *get gtimer frq value
- */
-.globl gtimer_get_counter_frequency
-gtimer_get_counter_frequency:
-	MRS X0,CNTFRQ_EL0
-	RET
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gtimer.h b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gtimer.h
deleted file mode 100644
index 2e1f33df50..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/gtimer.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2021-03-30     huijie.feng  first version
- */
-
-#ifndef __GTIMER_H__
-#define __GTIMER_H__
-
-#include <rtdef.h>
-
-void gtimer_set_counter_frequency(rt_uint32_t value);
-rt_uint32_t gtimer_get_counter_frequency(void);
-void gtimer_set_load_value(rt_uint32_t value);
-rt_uint32_t gtimer_get_current_value(void);
-rt_uint64_t gtimer_get_current_physical_value(void);
-void gtimer_set_physical_compare_value(rt_uint64_t value);
-rt_uint64_t gtimer_get_physical_compare_value(void);
-void gtimer_set_control(rt_uint32_t value);
-rt_uint32_t gtimer_get_control(void);
-
-#endif
-
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/interrupt.c b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/interrupt.c
deleted file mode 100644
index 756fea0d09..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/interrupt.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author         Notes
- * 2020-04-16     bigmagic       first version
- */
-
-#include <rthw.h>
-#include <rtthread.h>
-#include <gic.h>
-#include <board.h>
-#include <armv8.h>
-
-#define MAX_HANDLERS                256
-#define GIC_ACK_INTID_MASK          0x000003ff
-
-#ifdef RT_USING_SMP
-    #define rt_interrupt_nest rt_cpu_self()->irq_nest
-#else
-    extern volatile rt_uint8_t rt_interrupt_nest;
-#endif
-
-/* exception and interrupt handler table */
-struct rt_irq_desc isr_table[MAX_HANDLERS];
-
-#ifndef RT_USING_SMP
-    /* Those varibles will be accessed in ISR, so we need to share them. */
-    rt_ubase_t rt_interrupt_from_thread;
-    rt_ubase_t rt_interrupt_to_thread;
-    rt_ubase_t rt_thread_switch_interrupt_flag;
-#endif
-
-extern int system_vectors;
-
-void rt_hw_vector_init(void)
-{
-    rt_hw_set_current_vbar((rt_ubase_t)&system_vectors);  // cpu_gcc.S
-}
-
-/**
- * This function will initialize hardware interrupt
- */
-void rt_hw_interrupt_init(void)
-{
-    rt_uint32_t gic_cpu_base;
-    rt_uint32_t gic_dist_base;
-    rt_uint32_t gic_irq_start;
-
-    /* initialize vector table */
-    rt_hw_vector_init();
-
-    /* initialize exceptions table */
-    rt_memset(isr_table, 0x00, sizeof(isr_table));
-    /* initialize ARM GIC */
-    gic_dist_base = GIC_DISTRIBUTOR_BASE;
-    gic_cpu_base = GIC_INTERFACE_BASE;
-    gic_irq_start = GIC_IRQ_START;
-
-    arm_gic_dist_init(0, gic_dist_base, gic_irq_start);
-    arm_gic_cpu_init(0, gic_cpu_base);
-}
-
-/**
- * This function will mask a interrupt.
- * @param vector the interrupt number
- */
-void rt_hw_interrupt_mask(int vector)
-{
-    arm_gic_mask(0, vector);
-}
-
-/**
- * This function will un-mask a interrupt.
- * @param vector the interrupt number
- */
-void rt_hw_interrupt_umask(int vector)
-{
-    arm_gic_umask(0, vector);
-}
-
-/**
- * This function returns the active interrupt number.
- * @param none
- */
-int rt_hw_interrupt_get_irq(void)
-{
-    return arm_gic_get_active_irq(0);
-}
-
-/**
- * This function acknowledges the interrupt.
- * @param vector the interrupt number
- */
-void rt_hw_interrupt_ack(int vector)
-{
-    arm_gic_ack(0, vector);
-}
-
-/**
- * This function set interrupt CPU targets.
- * @param vector:   the interrupt number
- *        cpu_mask: target cpus mask, one bit for one core
- */
-void rt_hw_interrupt_set_target_cpus(int vector, unsigned int cpu_mask)
-{
-    arm_gic_set_cpu(0, vector, cpu_mask);
-}
-
-/**
- * This function get interrupt CPU targets.
- * @param vector: the interrupt number
- * @return target cpus mask, one bit for one core
- */
-unsigned int rt_hw_interrupt_get_target_cpus(int vector)
-{
-    return arm_gic_get_target_cpu(0, vector);
-}
-
-/**
- * This function set interrupt triger mode.
- * @param vector: the interrupt number
- *        mode:   interrupt triger mode; 0: level triger, 1: edge triger
- */
-void rt_hw_interrupt_set_triger_mode(int vector, unsigned int mode)
-{
-    arm_gic_set_configuration(0, vector, mode);
-}
-
-/**
- * This function get interrupt triger mode.
- * @param vector: the interrupt number
- * @return interrupt triger mode; 0: level triger, 1: edge triger
- */
-unsigned int rt_hw_interrupt_get_triger_mode(int vector)
-{
-    return arm_gic_get_configuration(0, vector);
-}
-
-/**
- * This function set interrupt pending flag.
- * @param vector: the interrupt number
- */
-void rt_hw_interrupt_set_pending(int vector)
-{
-    arm_gic_set_pending_irq(0, vector);
-}
-
-/**
- * This function get interrupt pending flag.
- * @param vector: the interrupt number
- * @return interrupt pending flag, 0: not pending; 1: pending
- */
-unsigned int rt_hw_interrupt_get_pending(int vector)
-{
-    return arm_gic_get_pending_irq(0, vector);
-}
-
-/**
- * This function clear interrupt pending flag.
- * @param vector: the interrupt number
- */
-void rt_hw_interrupt_clear_pending(int vector)
-{
-    arm_gic_clear_pending_irq(0, vector);
-}
-
-/**
- * This function set interrupt priority value.
- * @param vector: the interrupt number
- *        priority: the priority of interrupt to set
- */
-void rt_hw_interrupt_set_priority(int vector, unsigned int priority)
-{
-    arm_gic_set_priority(0, vector, priority);
-}
-
-/**
- * This function get interrupt priority.
- * @param vector: the interrupt number
- * @return interrupt priority value
- */
-unsigned int rt_hw_interrupt_get_priority(int vector)
-{
-    return arm_gic_get_priority(0, vector);
-}
-
-/**
- * This function set priority masking threshold.
- * @param priority: priority masking threshold
- */
-void rt_hw_interrupt_set_priority_mask(unsigned int priority)
-{
-    arm_gic_set_interface_prior_mask(0, priority);
-}
-
-/**
- * This function get priority masking threshold.
- * @param none
- * @return priority masking threshold
- */
-unsigned int rt_hw_interrupt_get_priority_mask(void)
-{
-    return arm_gic_get_interface_prior_mask(0);
-}
-
-/**
- * This function set priority grouping field split point.
- * @param bits: priority grouping field split point
- * @return 0: success; -1: failed
- */
-int rt_hw_interrupt_set_prior_group_bits(unsigned int bits)
-{
-    int status;
-
-    if (bits < 8)
-    {
-        arm_gic_set_binary_point(0, (7 - bits));
-        status = 0;
-    }
-    else
-    {
-        status = -1;
-    }
-
-    return (status);
-}
-
-/**
- * This function get priority grouping field split point.
- * @param none
- * @return priority grouping field split point
- */
-unsigned int rt_hw_interrupt_get_prior_group_bits(void)
-{
-    unsigned int bp;
-
-    bp = arm_gic_get_binary_point(0) & 0x07;
-
-    return (7 - bp);
-}
-
-/**
- * This function will install a interrupt service routine to a interrupt.
- * @param vector the interrupt number
- * @param new_handler the interrupt service routine to be installed
- * @param old_handler the old interrupt service routine
- */
-rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
-        void *param, const char *name)
-{
-    rt_isr_handler_t old_handler = RT_NULL;
-
-    if (vector < MAX_HANDLERS)
-    {
-        old_handler = isr_table[vector].handler;
-
-        if (handler != RT_NULL)
-        {
-#ifdef RT_USING_INTERRUPT_INFO
-            rt_strncpy(isr_table[vector].name, name, RT_NAME_MAX);
-#endif /* RT_USING_INTERRUPT_INFO */
-            isr_table[vector].handler = handler;
-            isr_table[vector].param = param;
-        }
-    }
-
-    return old_handler;
-}
-
-#ifdef RT_USING_SMP
-void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask)
-{
-    arm_gic_send_sgi(0, ipi_vector, cpu_mask, 0);
-}
-
-void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler)
-{
-    /* note: ipi_vector maybe different with irq_vector */
-    rt_hw_interrupt_install(ipi_vector, ipi_isr_handler, 0, "IPI_HANDLER");
-}
-#endif
-
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/interrupt.h b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/interrupt.h
deleted file mode 100644
index 27c62ad285..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/interrupt.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author         Notes
- * 2020-04-16     bigmagic       first version
- */
-
-#ifndef __INTERRUPT_H__
-#define __INTERRUPT_H__
-
-#include <rthw.h>
-#include <board.h>
-
-#define INT_IRQ     0x00
-#define INT_FIQ     0x01
-
-void rt_hw_interrupt_init(void);
-void rt_hw_interrupt_mask(int vector);
-void rt_hw_interrupt_umask(int vector);
-
-int rt_hw_interrupt_get_irq(void);
-void rt_hw_interrupt_ack(int vector);
-
-void rt_hw_interrupt_set_target_cpus(int vector, unsigned int cpu_mask);
-unsigned int rt_hw_interrupt_get_target_cpus(int vector);
-
-void rt_hw_interrupt_set_triger_mode(int vector, unsigned int mode);
-unsigned int rt_hw_interrupt_get_triger_mode(int vector);
-
-void rt_hw_interrupt_set_pending(int vector);
-unsigned int rt_hw_interrupt_get_pending(int vector);
-void rt_hw_interrupt_clear_pending(int vector);
-
-void rt_hw_interrupt_set_priority(int vector, unsigned int priority);
-unsigned int rt_hw_interrupt_get_priority(int vector);
-
-void rt_hw_interrupt_set_priority_mask(unsigned int priority);
-unsigned int rt_hw_interrupt_get_priority_mask(void);
-
-int rt_hw_interrupt_set_prior_group_bits(unsigned int bits);
-unsigned int rt_hw_interrupt_get_prior_group_bits(void);
-
-rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
-        void *param, const char *name);
-
-#ifdef RT_USING_SMP
-    void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask);
-    void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler);
-#endif
-
-#endif
-
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/mmu.c b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/mmu.c
deleted file mode 100644
index 3ce9ab2641..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/mmu.c
+++ /dev/null
@@ -1,371 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author             Notes
- * 2020-02-20     bigmagic           first version
- * 2021-06-25     Wayne              Support EL3
- */
-#include <mmu.h>
-#include <stddef.h>
-#include <rthw.h>
-
-#define TTBR_CNP    1
-
-typedef unsigned long int    uint64_t;
-
-static unsigned long main_tbl[512 * 20] __attribute__((aligned(4096)));
-
-#define IS_ALIGNED(x, a)        (((x) & ((typeof(x))(a) - 1)) == 0)
-
-#define PMD_TYPE_SECT        (1 << 0)
-
-#define PMD_TYPE_TABLE        (3 << 0)
-
-#define PTE_TYPE_PAGE        (3 << 0)
-
-#define BITS_PER_VA          39
-
-/* Granule size of 4KB is being used */
-#define GRANULE_SIZE_SHIFT         12
-#define GRANULE_SIZE               (1 << GRANULE_SIZE_SHIFT)
-#define XLAT_ADDR_MASK             ((1UL << BITS_PER_VA) - GRANULE_SIZE)
-
-#define PMD_TYPE_MASK               (3 << 0)
-
-int free_idx = 1;
-
-void __asm_invalidate_icache_all(void);
-void __asm_flush_dcache_all(void);
-int __asm_flush_l3_cache(void);
-void __asm_flush_dcache_range(unsigned long long start, unsigned long long end);
-void __asm_invalidate_dcache_all(void);
-void __asm_invalidate_icache_all(void);
-
-static void nonmmu_memset(char *dst, char v,  size_t len)
-{
-    while (len--)
-    {
-        *dst++ = v;
-    }
-}
-
-static unsigned long __page_off = 0;
-static unsigned long get_free_page(void)
-{
-    __page_off += 512;
-    return (unsigned long)(main_tbl + __page_off);
-}
-
-
-static inline unsigned int get_sctlr(void)
-{
-    unsigned int val;
-    asm volatile("mrs %0, sctlr_el1" : "=r"(val) : : "cc");
-    return val;
-}
-
-static inline void set_sctlr(unsigned int val)
-{
-    asm volatile("msr sctlr_el1, %0" : : "r"(val) : "cc");
-    asm volatile("isb");
-}
-
-void mmu_init(void)
-{
-    unsigned long val64;
-    unsigned long val32;
-
-    val64 = 0x007f6eUL;
-    __asm__ volatile("msr MAIR_EL1, %0\n dsb sy\n"::"r"(val64));
-    __asm__ volatile("mrs %0, MAIR_EL1\n dsb sy\n":"=r"(val64));
-
-    //TCR_EL1
-    val32 = (16UL << 0)//48bit
-            | (0x0UL << 6)
-            | (0x0UL << 7)
-            | (0x3UL << 8)
-            | (0x3UL << 10)//Inner Shareable
-            | (0x2UL << 12)
-            | (0x0UL << 14)//4K
-            | (0x0UL << 16)
-            | (0x0UL << 22)
-            | (0x1UL << 23)
-            | (0x2UL << 30)
-            | (0x1UL << 32)
-            | (0x0UL << 35)
-            | (0x0UL << 36)
-            | (0x0UL << 37)
-            | (0x0UL << 38);
-    __asm__ volatile("msr TCR_EL1, %0\n"::"r"(val32));
-    __asm__ volatile("mrs %0, TCR_EL1\n":"=r"(val32));
-
-    __asm__ volatile("msr TTBR0_EL1, %0\n dsb sy\n"::"r"(main_tbl));
-    __asm__ volatile("mrs %0, TTBR0_EL1\n dsb sy\n":"=r"(val64));
-
-    nonmmu_memset((char *)main_tbl, 0, 4096);
-}
-
-void mmu_enable(void)
-{
-    unsigned long val64;
-    unsigned long val32;
-
-    __asm__ volatile("mrs %0, SCTLR_EL1\n":"=r"(val64));
-    val64 &= ~0x1000; //disable I
-    __asm__ volatile("dmb sy\n msr SCTLR_EL1, %0\n isb sy\n"::"r"(val64));
-
-    __asm__ volatile("IC IALLUIS\n dsb sy\n isb sy\n");
-    __asm__ volatile("tlbi vmalle1\n dsb sy\n isb sy\n");
-
-    //SCTLR_EL1, turn on mmu
-    __asm__ volatile("mrs %0, SCTLR_EL1\n":"=r"(val32));
-    val32 |= 0x1005; //enable mmu, I C M
-    __asm__ volatile("dmb sy\n msr SCTLR_EL1, %0\nisb sy\n"::"r"(val32));
-    rt_hw_icache_enable();
-    rt_hw_dcache_enable();
-
-}
-
-static int map_single_page_2M(unsigned long *lv0_tbl, unsigned long va, unsigned long pa, unsigned long attr)
-{
-    int level;
-    unsigned long *cur_lv_tbl = lv0_tbl;
-    unsigned long page;
-    unsigned long off;
-    int level_shift = 39;
-
-    if (va & (0x200000UL - 1))
-    {
-        return MMU_MAP_ERROR_VANOTALIGN;
-    }
-    if (pa & (0x200000UL - 1))
-    {
-        return MMU_MAP_ERROR_PANOTALIGN;
-    }
-    for (level = 0; level < 2; level++)
-    {
-        off = (va >> level_shift);
-        off &= MMU_LEVEL_MASK;
-        if ((cur_lv_tbl[off] & 1) == 0)
-        {
-            page = get_free_page();
-            if (!page)
-            {
-                return MMU_MAP_ERROR_NOPAGE;
-            }
-            nonmmu_memset((char *)page, 0, 4096);
-            cur_lv_tbl[off] = page | 0x3UL;
-        }
-        page = cur_lv_tbl[off];
-        if (!(page & 0x2))
-        {
-            //is block! error!
-            return MMU_MAP_ERROR_CONFLICT;
-        }
-        cur_lv_tbl = (unsigned long *)(page & 0x0000fffffffff000UL);
-        level_shift -= 9;
-    }
-    attr &= 0xfff0000000000ffcUL;
-    pa |= (attr | 0x1UL); //block
-    off = (va >> 21);
-    off &= MMU_LEVEL_MASK;
-    cur_lv_tbl[off] = pa;
-    return 0;
-}
-
-int armv8_map_2M(unsigned long va, unsigned long pa, int count, unsigned long attr)
-{
-    int i;
-    int ret;
-
-    if (va & (0x200000 - 1))
-    {
-        return -1;
-    }
-    if (pa & (0x200000 - 1))
-    {
-        return -1;
-    }
-    for (i = 0; i < count; i++)
-    {
-        ret = map_single_page_2M((unsigned long *)main_tbl, va, pa, attr);
-        va += 0x200000;
-        pa += 0x200000;
-        if (ret != 0)
-        {
-            return ret;
-        }
-    }
-    return 0;
-}
-
-static void set_table(uint64_t *pt, uint64_t *table_addr)
-{
-    uint64_t val;
-    val = (0x3UL | (uint64_t)table_addr);
-    *pt = val;
-}
-
-static uint64_t *create_table(void)
-{
-    uint64_t *new_table = (uint64_t *)((unsigned char *)&main_tbl[0] + free_idx * 4096); //+ free_idx * GRANULE_SIZE;
-    /* Mark all entries as invalid */
-    nonmmu_memset((char *)new_table, 0, 4096);
-    free_idx++;
-    return new_table;
-}
-
-static int pte_type(uint64_t *pte)
-{
-    return *pte & PMD_TYPE_MASK;
-}
-
-static int level2shift(int level)
-{
-    /* Page is 12 bits wide, every level translates 9 bits */
-    return (12 + 9 * (3 - level));
-}
-
-static uint64_t *get_level_table(uint64_t *pte)
-{
-    uint64_t *table = (uint64_t *)(*pte & XLAT_ADDR_MASK);
-
-    if (pte_type(pte) != PMD_TYPE_TABLE)
-    {
-        table = create_table();
-        set_table(pte, table);
-    }
-    return table;
-}
-
-static void map_region(uint64_t virt, uint64_t phys, uint64_t size, uint64_t attr)
-{
-    uint64_t block_size = 0;
-    uint64_t block_shift = 0;
-    uint64_t *pte;
-    uint64_t idx = 0;
-    uint64_t addr = 0;
-    uint64_t *table = 0;
-    int level = 0;
-
-    addr = virt;
-    while (size)
-    {
-        table = &main_tbl[0];
-        for (level = 0; level < 4; level++)
-        {
-            block_shift = level2shift(level);
-            idx = addr >> block_shift;
-            idx = idx % 512;
-            block_size = (uint64_t)(1L << block_shift);
-            pte = table + idx;
-
-            if (size >= block_size && IS_ALIGNED(addr, block_size))
-            {
-                attr &= 0xfff0000000000ffcUL;
-                if (level != 3)
-                {
-                    *pte = phys | (attr | 0x1UL);
-                }
-                else
-                {
-                    *pte = phys | (attr | 0x3UL);
-                }
-                addr += block_size;
-                phys += block_size;
-                size -= block_size;
-                break;
-            }
-            table = get_level_table(pte);
-        }
-    }
-}
-
-void armv8_map(unsigned long va, unsigned long pa, unsigned long size, unsigned long attr)
-{
-    map_region(va, pa, size, attr);
-}
-
-void rt_hw_dcache_enable(void)
-{
-    if (!(get_sctlr() & CR_M))
-    {
-        rt_kprintf("please init mmu!\n");
-    }
-    else
-    {
-        set_sctlr(get_sctlr() | CR_C);
-    }
-}
-
-void rt_hw_dcache_flush_all(void)
-{
-    int ret;
-
-    __asm_flush_dcache_all();
-    ret = __asm_flush_l3_cache();
-    if (ret)
-    {
-        rt_kprintf("flushing dcache returns 0x%x\n", ret);
-    }
-    else
-    {
-        rt_kprintf("flushing dcache successfully.\n");
-    }
-}
-
-void rt_hw_dcache_flush_range(unsigned long start_addr, unsigned long size)
-{
-    __asm_flush_dcache_range(start_addr, start_addr + size);
-}
-
-void rt_hw_dcache_invalidate_range(unsigned long start_addr, unsigned long size)
-{
-    __asm_flush_dcache_range(start_addr, start_addr + size);
-}
-
-void rt_hw_cpu_dcache_clean_inv(unsigned long start_addr, unsigned long size)
-{
-    __asm_flush_dcache_range(start_addr, start_addr + size);
-}
-
-void rt_hw_cpu_dcache_invalidate(void *start_addr, int size)
-{
-    rt_hw_dcache_invalidate_range((unsigned long)start_addr, (unsigned long)size);
-}
-
-void rt_hw_dcache_invalidate_all(void)
-{
-    __asm_invalidate_dcache_all();
-}
-
-void rt_hw_dcache_disable(void)
-{
-    /* if cache isn't enabled no need to disable */
-    if (!(get_sctlr() & CR_C))
-    {
-        rt_kprintf("need enable cache!\n");
-        return;
-    }
-    set_sctlr(get_sctlr() & ~CR_C);
-}
-
-//icache
-void rt_hw_icache_enable(void)
-{
-    __asm_invalidate_icache_all();
-    set_sctlr(get_sctlr() | CR_I);
-}
-
-void rt_hw_icache_invalidate_all(void)
-{
-    __asm_invalidate_icache_all();
-}
-
-void rt_hw_icache_disable(void)
-{
-    set_sctlr(get_sctlr() & ~CR_I);
-}
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/mmu.h b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/mmu.h
deleted file mode 100644
index 8295116c08..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/mmu.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author             Notes
- * 2020-02-20     bigmagic           first version
- */
-
-#ifndef  __MMU_H__
-#define  __MMU_H__
-
-/*
- * CR1 bits (CP#15 CR1)
- */
-#define CR_M    (1 << 0)    /* MMU enable                */
-#define CR_A    (1 << 1)    /* Alignment abort enable        */
-#define CR_C    (1 << 2)    /* Dcache enable            */
-#define CR_W    (1 << 3)    /* Write buffer enable            */
-#define CR_P    (1 << 4)    /* 32-bit exception handler        */
-#define CR_D    (1 << 5)    /* 32-bit data address range        */
-#define CR_L    (1 << 6)    /* Implementation defined        */
-#define CR_B    (1 << 7)    /* Big endian                */
-#define CR_S    (1 << 8)    /* System MMU protection        */
-#define CR_R    (1 << 9)    /* ROM MMU protection            */
-#define CR_F    (1 << 10)    /* Implementation defined        */
-#define CR_Z    (1 << 11)    /* Implementation defined        */
-#define CR_I    (1 << 12)    /* Icache enable            */
-#define CR_V    (1 << 13)    /* Vectors relocated to 0xffff0000    */
-#define CR_RR   (1 << 14)    /* Round Robin cache replacement    */
-#define CR_L4   (1 << 15)    /* LDR pc can set T bit            */
-#define CR_DT   (1 << 16)
-#define CR_IT   (1 << 18)
-#define CR_ST   (1 << 19)
-#define CR_FI   (1 << 21)    /* Fast interrupt (lower latency mode)    */
-#define CR_U    (1 << 22)    /* Unaligned access operation        */
-#define CR_XP   (1 << 23)    /* Extended page tables            */
-#define CR_VE   (1 << 24)    /* Vectored interrupts            */
-#define CR_EE   (1 << 25)    /* Exception (Big) Endian        */
-#define CR_TRE  (1 << 28)    /* TEX remap enable            */
-#define CR_AFE  (1 << 29)    /* Access flag enable            */
-#define CR_TE   (1 << 30)    /* Thumb exception enable        */
-
-#define MMU_LEVEL_MASK 0x1ffUL
-#define MMU_MAP_ERROR_VANOTALIGN  -1
-#define MMU_MAP_ERROR_PANOTALIGN  -2
-#define MMU_MAP_ERROR_NOPAGE      -3
-#define MMU_MAP_ERROR_CONFLICT    -4
-
-#define MEM_ATTR_MEMORY ((0x1UL << 10) | (0x2UL << 8) | (0x0UL << 6) | (0x1UL << 2))
-#define MEM_ATTR_IO     ((0x1UL << 10) | (0x2UL << 8) | (0x0UL << 6) | (0x2UL << 2))
-
-#define BUS_ADDRESS(phys)    (((phys) & ~0xC0000000)  |  0xC0000000)
-
-void mmu_init(void);
-
-void mmu_enable(void);
-
-int armv8_map_2M(unsigned long va, unsigned long pa, int count, unsigned long attr);
-
-void armv8_map(unsigned long va, unsigned long pa, unsigned long size, unsigned long attr);
-
-//dcache
-void rt_hw_dcache_enable(void);
-void rt_hw_dcache_flush_all(void);
-void rt_hw_dcache_flush_range(unsigned long start_addr, unsigned long size);
-void rt_hw_dcache_invalidate_range(unsigned long start_addr, unsigned long size);
-void rt_hw_dcache_invalidate_all(void);
-void rt_hw_dcache_disable(void);
-
-//icache
-void rt_hw_icache_enable(void);
-void rt_hw_icache_invalidate_all(void);
-void rt_hw_icache_disable(void);
-
-
-#endif  /*__MMU_H__*/
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/secondary_cpu.c b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/secondary_cpu.c
deleted file mode 100644
index bb1ab62974..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/secondary_cpu.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Date           Author       Notes
- * 2021-06-17     Wayne        the first version
- */
-
-#include <rtthread.h>
-#include "board.h"
-#include "gic.h"
-#include "cp15.h"
-
-#ifdef RT_USING_SMP
-#include "interrupt.h"
-
-extern int rt_hw_timer_init(void);
-extern void secondary_cpu_start(void);
-
-/*
-   For core-1, core-2 and core-3.
-*/
-void rt_hw_secondary_cpu_up(void)
-{
-    rt_uint32_t cpu_mask = 2;
-    rt_int32_t i;
-
-    rt_cpu_dcache_clean_flush();
-    rt_cpu_icache_flush();
-
-    rt_kprintf("rt_hw_secondary_cpu_up is processing \r\n");
-    for (i = 1; i < RT_CPUS_NR, i != 4; i++)
-    {
-        rt_kprintf("Boot Core-%d\n", i);
-        //FPsci_CpuOn(1 << i, (rt_uint32_t)secondary_cpu_start);
-        cpu_mask <<= 1;
-        __SEV();
-        __DSB();
-        __ISB();
-
-        __DSB();
-        rt_hw_ipi_send(RT_SCHEDULE_IPI, cpu_mask);
-    }
-}
-
-void secondary_cpu_c_start(void)
-{
-    uint32_t id = rt_hw_cpu_id();
-    rt_kprintf("cpu = 0x%08x\n", id);
-
-    rt_hw_timer_init();
-
-    /* initialize vector table */
-    rt_hw_vector_init();
-
-    rt_hw_spin_lock(&_cpus_lock);
-
-    rt_hw_interrupt_set_priority(RT_SCHEDULE_IPI, 16);
-    rt_hw_interrupt_umask(RT_SCHEDULE_IPI);
-
-    rt_system_scheduler_start();
-}
-
-void rt_hw_secondary_cpu_idle_exec(void)
-{
-    asm volatile("wfe" ::
-                 : "memory", "cc");
-}
-
-#endif
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/stack.c b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/stack.c
deleted file mode 100644
index 5f41d391b4..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/stack.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2011-09-23     Bernard      the first version
- * 2011-10-05     Bernard      add thumb mode
- */
-#include <rtthread.h>
-#include <board.h>
-
-#include <armv8.h>
-
-#define INITIAL_SPSR_EL3 (PSTATE_EL3 | SP_EL0)
-#define INITIAL_SPSR_EL2 (PSTATE_EL2 | SP_EL0)
-#define INITIAL_SPSR_EL1 (PSTATE_EL1 | SP_EL0)
-
-/**
- * This function will initialize thread stack
- *
- * @param tentry the entry of thread
- * @param parameter the parameter of entry
- * @param stack_addr the beginning stack address
- * @param texit the function will be called when thread exit
- *
- * @return stack address
- */
-rt_uint8_t *rt_hw_stack_init(void *tentry, void *parameter,
-                             rt_uint8_t *stack_addr, void *texit)
-{
-    rt_ubase_t *stk;
-    rt_ubase_t current_el;
-
-    stk      = (rt_ubase_t *)stack_addr;
-
-    *(--stk) = (rt_ubase_t) 11;             /* X1 */
-    *(--stk) = (rt_ubase_t) parameter;      /* X0 */
-    *(--stk) = (rt_ubase_t) 33;             /* X3 */
-    *(--stk) = (rt_ubase_t) 22;             /* X2 */
-    *(--stk) = (rt_ubase_t) 55;             /* X5 */
-    *(--stk) = (rt_ubase_t) 44;             /* X4 */
-    *(--stk) = (rt_ubase_t) 77;             /* X7 */
-    *(--stk) = (rt_ubase_t) 66;             /* X6 */
-    *(--stk) = (rt_ubase_t) 99;             /* X9 */
-    *(--stk) = (rt_ubase_t) 88;             /* X8 */
-    *(--stk) = (rt_ubase_t) 11;             /* X11 */
-    *(--stk) = (rt_ubase_t) 10;             /* X10 */
-    *(--stk) = (rt_ubase_t) 13;             /* X13 */
-    *(--stk) = (rt_ubase_t) 12;             /* X12 */
-    *(--stk) = (rt_ubase_t) 15;             /* X15 */
-    *(--stk) = (rt_ubase_t) 14;             /* X14 */
-    *(--stk) = (rt_ubase_t) 17;             /* X17 */
-    *(--stk) = (rt_ubase_t) 16;             /* X16 */
-    *(--stk) = (rt_ubase_t) 19;             /* X19 */
-    *(--stk) = (rt_ubase_t) 18;             /* X18 */
-    *(--stk) = (rt_ubase_t) 21;             /* X21 */
-    *(--stk) = (rt_ubase_t) 20;             /* X20 */
-    *(--stk) = (rt_ubase_t) 23;             /* X23 */
-    *(--stk) = (rt_ubase_t) 22;             /* X22 */
-    *(--stk) = (rt_ubase_t) 25;             /* X25 */
-    *(--stk) = (rt_ubase_t) 24;             /* X24 */
-    *(--stk) = (rt_ubase_t) 27;             /* X27 */
-    *(--stk) = (rt_ubase_t) 26;             /* X26 */
-    *(--stk) = (rt_ubase_t) 29;             /* X29 */
-    *(--stk) = (rt_ubase_t) 28;             /* X28 */
-    *(--stk) = (rt_ubase_t) 0;              /* XZR - has no effect, used so there are an even number of registers. */
-    *(--stk) = (rt_ubase_t) texit;          /* X30 - procedure call link register. */
-
-    current_el = rt_hw_get_current_el();
-
-    if (current_el == 3)
-    {
-        *(--stk) = INITIAL_SPSR_EL3;
-    }
-    else if (current_el == 2)
-    {
-        *(--stk) = INITIAL_SPSR_EL2;
-    }
-    else
-    {
-        *(--stk) = INITIAL_SPSR_EL1;
-    }
-
-    *(--stk) = (rt_ubase_t) tentry;         /* Exception return address. */
-
-    /* return task's current stack address */
-    return (rt_uint8_t *)stk;
-}
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/trap.c b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/trap.c
deleted file mode 100644
index a4f837c05d..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/trap.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright (c) 2006-2022, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Date           Author       Notes
- * 2018-10-06     ZhaoXiaowei    the first version
- */
-
-#include <rtthread.h>
-#include <rthw.h>
-
-#include "interrupt.h"
-#include "armv8.h"
-
-extern struct rt_thread *rt_current_thread;
-#ifdef RT_USING_FINSH
-    extern long list_thread(void);
-#endif
-
-/**
- * this function will show registers of CPU
- *
- * @param regs the registers point
- */
-void rt_hw_show_register(struct rt_hw_exp_stack *regs)
-{
-    rt_kprintf("Execption:\n");
-    rt_kprintf("r00:0x%16.16lx r01:0x%16.16lx r02:0x%16.16lx r03:0x%16.16lx\n", regs->x0, regs->x1, regs->x2, regs->x3);
-    rt_kprintf("r04:0x%16.16lx r05:0x%16.16lx r06:0x%16.16lx r07:0x%16.16lx\n", regs->x4, regs->x5, regs->x6, regs->x7);
-    rt_kprintf("r08:0x%16.16lx r09:0x%16.16lx r10:0x%16.16lx r11:0x%16.16lx\n", regs->x8, regs->x9, regs->x10, regs->x11);
-    rt_kprintf("r12:0x%16.16lx r13:0x%16.16lx r14:0x%16.16lx r15:0x%16.16lx\n", regs->x12, regs->x13, regs->x14, regs->x15);
-    rt_kprintf("r16:0x%16.16lx r17:0x%16.16lx r18:0x%16.16lx r19:0x%16.16lx\n", regs->x16, regs->x17, regs->x18, regs->x19);
-    rt_kprintf("r20:0x%16.16lx r21:0x%16.16lx r22:0x%16.16lx r23:0x%16.16lx\n", regs->x20, regs->x21, regs->x22, regs->x23);
-    rt_kprintf("r24:0x%16.16lx r25:0x%16.16lx r26:0x%16.16lx r27:0x%16.16lx\n", regs->x24, regs->x25, regs->x26, regs->x27);
-    rt_kprintf("r28:0x%16.16lx r29:0x%16.16lx r30:0x%16.16lx\n", regs->x28, regs->x29, regs->x30);
-    rt_kprintf("spsr:0x%16.16lx\n", regs->spsr);
-    rt_kprintf("return pc:0x%16.16lx\n", regs->pc);
-}
-
-/**
- * When comes across an instruction which it cannot handle,
- * it takes the undefined instruction trap.
- *
- * @param regs system registers
- *
- * @note never invoke this function in application
- */
-void rt_hw_trap_error(struct rt_hw_exp_stack *regs)
-{
-    rt_kprintf("error exception:\n");
-    rt_hw_show_register(regs);
-#ifdef RT_USING_FINSH
-    list_thread();
-#endif
-    rt_hw_cpu_shutdown();
-}
-
-#define GIC_ACK_INTID_MASK              0x000003ff
-
-
-void rt_hw_trap_irq(void)
-{
-    void *param;
-    int ir;
-    rt_isr_handler_t isr_func;
-    extern struct rt_irq_desc isr_table[];
-
-    ir = rt_hw_interrupt_get_irq();
-    if (ir == 1023)
-    {
-        /* Spurious interrupt */
-        return;
-    }
-
-    /* get interrupt service routine */
-    isr_func = isr_table[ir].handler;
-#ifdef RT_USING_INTERRUPT_INFO
-    isr_table[ir].counter++;
-#endif
-    if (isr_func)
-    {
-        /* Interrupt for myself. */
-        param = isr_table[ir].param;
-        /* turn to interrupt service routine */
-        isr_func(ir, param);
-    }
-
-    /* end of interrupt */
-    rt_hw_interrupt_ack(ir);
-}
-
-void rt_hw_trap_fiq(void)
-{
-    void *param;
-    int ir;
-    rt_isr_handler_t isr_func;
-    extern struct rt_irq_desc isr_table[];
-
-    ir = rt_hw_interrupt_get_irq();
-
-    /* get interrupt service routine */
-    isr_func = isr_table[ir].handler;
-    if (isr_func)
-    {
-        param = isr_table[ir].param;
-
-        /* turn to interrupt service routine */
-        isr_func(ir, param);
-    }
-
-    /* end of interrupt */
-    rt_hw_interrupt_ack(ir);
-}
diff --git a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/vector_gcc.S b/bsp/nuvoton/libraries/ma35/libcpu/aarch64/vector_gcc.S
deleted file mode 100644
index fc88cce7f8..0000000000
--- a/bsp/nuvoton/libraries/ma35/libcpu/aarch64/vector_gcc.S
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (c) 2006-2020, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Date           Author       Notes
- * 2018-10-06     ZhaoXiaowei    the first version
- */
- 
-.text
-
-.globl system_vectors
-.globl vector_error
-.globl vector_irq
-.globl vector_fiq
-
-system_vectors:
-.align 11
-    .set    VBAR, system_vectors
-    .org    VBAR
-    // Exception from CurrentEL (EL1) with SP_EL0 (SPSEL=1)
-    .org (VBAR + 0x00 + 0)
-    B vector_error      // 			Synchronous
-    .org (VBAR + 0x80 + 0)
-    B vector_irq        //          IRQ/vIRQ
-    .org (VBAR + 0x100 + 0)
-    B vector_fiq        //          FIQ/vFIQ
-    .org (VBAR + 0x180 + 0)
-    B vector_error      //          Error/vError
-
-    // Exception from CurrentEL (EL1) with SP_ELn
-    .org (VBAR + 0x200 + 0)
-    B vector_error      // 			Synchronous
-    .org (VBAR + 0x280 + 0)
-    B vector_irq    	// 			IRQ/vIRQ
-    .org (VBAR + 0x300 + 0)
-    B vector_fiq        //          FIQ/vFIQ
-    .org (VBAR + 0x380 + 0)
-    B vector_error
-
-    // Exception from lower EL, aarch64
-    .org (VBAR + 0x400 + 0)
-    B vector_error
-    .org (VBAR + 0x480 + 0)
-    B vector_error
-    .org (VBAR + 0x500 + 0)
-    B vector_error
-    .org (VBAR + 0x580 + 0)
-    B vector_error
-
-    // Exception from lower EL, aarch32
-    .org (VBAR + 0x600 + 0)
-    B vector_error
-    .org (VBAR + 0x680 + 0)
-    B vector_error
-    .org (VBAR + 0x700 + 0)
-    B vector_error
-    .org (VBAR + 0x780 + 0)
-    B vector_error
-    .org (VBAR + 0x800 + 0)
-    B vector_error