From ce2a24ad0ffeb8b67480c481d471169c24316938 Mon Sep 17 00:00:00 2001
From: Huaqi Fang <578567190@qq.com>
Date: Wed, 6 Dec 2023 11:11:00 +0800
Subject: [PATCH] hw/intc: Fix time csr rdtime_fn not implement issue which
 cause time illegal instruction issue

Also fix issue in gdb info reg time

time           Could not fetch register "time"; remote failure reply 'E14'

Signed-off-by: Huaqi Fang <578567190@qq.com>
---
 hw/intc/nuclei_systimer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/intc/nuclei_systimer.c b/hw/intc/nuclei_systimer.c
index 8bada4bc0992..cc6d7c45bfc3 100644
--- a/hw/intc/nuclei_systimer.c
+++ b/hw/intc/nuclei_systimer.c
@@ -36,7 +36,6 @@ int hart_numbers = 0;
 
 static uint64_t nuclei_cpu_riscv_read_rtc(void *opaque)
 {
-    
     uint64_t timebase_freq = *(uint64_t*)opaque;
     return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL),
         timebase_freq, NANOSECONDS_PER_SECOND);
@@ -463,6 +462,7 @@ DeviceState *nuclei_systimer_create(hwaddr addr, hwaddr size, uint32_t hartid_ba
     if(eclic != NULL)
     {
         //env->features |= (1ULL << RISCV_FEATURE_ECLIC);
+        riscv_cpu_set_rdtime_fn(env, nuclei_cpu_riscv_read_rtc, &(s->timebase_freq));
         env->mtimer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
                                     &nuclei_mtimecmp_cb, cpu);
         env->mtimecmp = 0;