diff --git a/drivers/cadence/uart/aarch64/cdns_console.S b/drivers/cadence/uart/aarch64/cdns_console.S
index 4c1a80e..1bdaa48 100644
--- a/drivers/cadence/uart/aarch64/cdns_console.S
+++ b/drivers/cadence/uart/aarch64/cdns_console.S
@@ -197,7 +197,14 @@
 	cmp	x0, #0
 	ASM_ASSERT(ne)
 #endif /* ENABLE_ASSERTIONS */
-	/* Placeholder */
+	/* Loop until the transmit FIFO is empty */
+check_txfifo_empty:
+	ldr     w2, [x0, #R_UART_SR]
+	tbz     w2, #UART_SR_INTR_TEMPTY_BIT, check_txfifo_empty
+	/* Wait until the Transmit is Inactive */
+check_tx_inactive_state:
+	ldr     w2, [x0, #R_UART_SR]
+	tbnz    w2, #UART_SR_INTR_TACTIVE_BIT, check_tx_inactive_state
 	ret
 endfunc console_cdns_core_flush