enable set systick priority for bumblebee

arch/risc-v/bumblebee/gcc/riscv_port.h

@@ -24,6 +24,8 @@
 #define CLINT_MTIMECMP  0x0008
 #define CLINT_MTIME     0x0000
 
-void riscv_cpu_init();
+void port_cpu_init();
+
+void port_systick_priority_set(uint32_t priority);
 
 #endif // _RISCV_PORT_H_

arch/risc-v/bumblebee/gcc/riscv_port_c.c

@@ -76,8 +76,8 @@ static void eclic_set_irq_priority(uint32_t source, uint8_t priority) {
 
 
     uint8_t pad   = ~0;
-    pad         >>= (8 - cicbits);
-    pad         <<= (8 - cicbits);
+    pad         <<= cicbits;
+    pad         >>= cicbits;
 
 
     uint8_t intctrl_val = eclic_get_intctrl(CLIC_INT_TMR);
@@ -90,12 +90,14 @@ static void eclic_set_irq_priority(uint32_t source, uint8_t priority) {
     eclic_set_intctrl(CLIC_INT_TMR, intctrl_val);
 }
 
-void riscv_cpu_init() {
+__PORT__ void port_cpu_init() {
 
     eclic_enable_interrupt(CLIC_INT_TMR);
 
     eclic_set_irq_level(CLIC_INT_TMR, 0);
 
-    eclic_set_irq_priority(CLIC_INT_TMR, 0);
-
+}
+
+__PORT__ void port_systick_priority_set(uint32_t priority) {
+    eclic_set_irq_priority(CLIC_INT_TMR, priority);
 }

arch/risc-v/common/tos_cpu.c

@@ -12,7 +12,7 @@ __KERNEL__ void cpu_init(void) {
     k_cpu_cycle_per_tick = TOS_CFG_CPU_CLOCK / k_cpu_tick_per_second;
     cpu_systick_init(k_cpu_cycle_per_tick);
 
-    riscv_cpu_init();
+    port_cpu_init();
 }
 
 __API__ cpu_cpsr_t tos_cpu_cpsr_save(void)

arch/risc-v/rv32i/gcc/port_c.c

@@ -1,6 +1,6 @@
+#include <tos.h>
 #include "riscv_encoding.h"
 #include "riscv_port.h"
-#include <tos.h>
 
 __PORT__ void port_systick_config(uint32_t cycle_per_tick)
 {
@@ -32,8 +32,3 @@ __PORT__ void port_systick_config(uint32_t cycle_per_tick)
     *(volatile uint32_t *)(CLINT_CTRL_ADDR + CLINT_MTIMECMP + 4) = 0xFFFFFFFF & (mtimecmp >> 32);
     *(volatile uint32_t *)(CLINT_CTRL_ADDR + CLINT_MTIMECMP + 0) = 0xFFFFFFFF & (mtimecmp >>  0);
 }
-
-__PORT__ void port_systick_priority_set(uint32_t prio)
-{
-
-}

arch/risc-v/spike/gcc/riscv_port.h

@@ -23,6 +23,8 @@
 #define CLINT_MTIMECMP  0x4000
 #define CLINT_MTIME     0xBFF8
 
-void riscv_cpu_init();
+void port_cpu_init();
+
+void port_systick_priority_set(uint32_t priority);
 
 #endif // _RISCV_PORT_H_

arch/risc-v/spike/gcc/riscv_port_c.c

@@ -1,3 +1,9 @@
-void riscv_cpu_init() {
+#include "tos.h"
+
+__PORT__ void port_cpu_init() {
+    // DO NOTHING
+}
+
+__PORT__ void port_systick_priority_set(uint32_t priority) {
     // DO NOTHING
 }