diff --git a/platform/kendryte/k210/platform.h b/platform/kendryte/k210/platform.h
index 14a4bbdf..6b520cf7 100644
--- a/platform/kendryte/k210/platform.h
+++ b/platform/kendryte/k210/platform.h
@@ -16,6 +16,8 @@
 #ifndef _PLATFORM_H_
 #define _PLATFORM_H_
 
+#include <sbi/riscv_asm.h>
+
 /* Register base address */
 
 /* Under Coreplex */
@@ -83,40 +85,7 @@
 #define SPI1_BASE_ADDR		(0x53000000U)
 #define SPI3_BASE_ADDR		(0x54000000U)
 
-#define read_csr(reg) ({ unsigned long __tmp; \
-  asm volatile ("csrr %0, " #reg : "=r"(__tmp)); \
-  __tmp; })
-
-#define write_csr(reg, val) ({ \
-  if (__builtin_constant_p(val) && (unsigned long)(val) < 32) \
-	  asm volatile ("csrw " #reg ", %0" :: "i"(val));     \
-  else \
-	  asm volatile ("csrw " #reg ", %0" :: "r"(val)); })
-
-#define swap_csr(reg, val) ({ unsigned long __tmp; \
-  if (__builtin_constant_p(val) && (unsigned long)(val) < 32) \
-	  asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "i"(val)); \
-  else \
-	  asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "r"(val)); \
-  __tmp; })
-
-#define set_csr(reg, bit) ({ unsigned long __tmp; \
-  if (__builtin_constant_p(bit) && (unsigned long)(bit) < 32) \
-	  asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
-  else \
-	  asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
-  __tmp; })
-
-#define clear_csr(reg, bit) ({ unsigned long __tmp; \
-  if (__builtin_constant_p(bit) && (unsigned long)(bit) < 32) \
-	  asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
-  else \
-	  asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
-  __tmp; })
-
-#define read_time()		read_csr(mtime)
-#define read_cycle()		read_csr(mcycle)
-#define current_coreid()	read_csr(mhartid)
+#define read_cycle()		csr_read(mcycle)
 
 /*
  * PLIC External Interrupt Numbers
diff --git a/platform/kendryte/k210/sysctl.c b/platform/kendryte/k210/sysctl.c
index 3e855a58..8039f6e7 100644
--- a/platform/kendryte/k210/sysctl.c
+++ b/platform/kendryte/k210/sysctl.c
@@ -1763,14 +1763,14 @@ u32 sysctl_cpu_set_freq(u32 freq)
 
 void sysctl_enable_irq(void)
 {
-	set_csr(mie, MIP_MEIP);
-	set_csr(mstatus, MSTATUS_MIE);
+	csr_read_set(mie, MIP_MEIP);
+	csr_read_set(mstatus, MSTATUS_MIE);
 }
 
 void sysctl_disable_irq(void)
 {
-	clear_csr(mie, MIP_MEIP);
-	clear_csr(mstatus, MSTATUS_MIE);
+	csr_read_clear(mie, MIP_MEIP);
+	csr_read_clear(mstatus, MSTATUS_MIE);
 }
 
 u64 sysctl_get_time_us(void)
@@ -1782,8 +1782,8 @@ u64 sysctl_get_time_us(void)
 
 void sysctl_usleep(u64 usec)
 {
-    u64 nop_all = usec * sysctl_clock_get_freq(SYSCTL_CLOCK_CPU) / 1000000UL;
-    u64 cycle = read_cycle();
+	u64 nop_all = usec * sysctl_clock_get_freq(SYSCTL_CLOCK_CPU) / 1000000UL;
+	u64 cycle = read_cycle();
 
-    while (read_cycle() - cycle < nop_all);
+	while (read_cycle() - cycle < nop_all);
 }