diff --git a/sys/riscv/conf/GENERIC b/sys/riscv/conf/GENERIC
--- a/sys/riscv/conf/GENERIC
+++ b/sys/riscv/conf/GENERIC
@@ -165,7 +165,7 @@
 options 	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
 options 	MALLOC_DEBUG_MAXZONES=8	# Separate malloc(9) zones
 options 	ALT_BREAK_TO_DEBUGGER	# Enter debugger on keyboard escape sequence
-# options 	EARLY_PRINTF
+# options 	EARLY_PRINTF=sbi
 options 	VERBOSE_SYSINIT=0	# Support debug.verbose_sysinit, off by default
 
 # Kernel dump features.
diff --git a/sys/riscv/riscv/riscv_console.c b/sys/riscv/riscv/riscv_console.c
--- a/sys/riscv/riscv/riscv_console.c
+++ b/sys/riscv/riscv/riscv_console.c
@@ -110,7 +110,7 @@
 	sbi_console_putchar(c);
 }
 
-#ifdef EARLY_PRINTF
+#if CHECK_EARLY_PRINTF(sbi)
 early_putc_t *early_putc = riscv_putc;
 #endif
 
diff --git a/sys/sys/systm.h b/sys/sys/systm.h
--- a/sys/sys/systm.h
+++ b/sys/sys/systm.h
@@ -215,6 +215,7 @@
 #define	early_printf_ns8250	3
 #define	early_printf_pl011	4
 #define	early_printf_snps	5
+#define	early_printf_sbi	6
 #else
 #define	CHECK_EARLY_PRINTF(x)	0
 #endif