Index: head/sys/dev/uart/uart_dev_ns8250.c
===================================================================
--- head/sys/dev/uart/uart_dev_ns8250.c
+++ head/sys/dev/uart/uart_dev_ns8250.c
@@ -415,6 +415,9 @@
 static struct acpi_uart_compat_data acpi_compat_data[] = {
 	{"AMD0020",	&uart_ns8250_class, 0, 2, 0, 48000000, UART_F_BUSY_DETECT, "AMD / Synopsys Designware UART"},
 	{"AMDI0020", &uart_ns8250_class, 0, 2, 0, 48000000, UART_F_BUSY_DETECT, "AMD / Synopsys Designware UART"},
+	{"MRVL0001", &uart_ns8250_class, 0, 2, 0, 200000000, UART_F_BUSY_DETECT, "Marvell / Synopsys Designware UART"},
+	{"SCX0006",  &uart_ns8250_class, 0, 2, 0, 62500000, UART_F_BUSY_DETECT, "SynQuacer / Synopsys Designware UART"},
+	{"HISI0031", &uart_ns8250_class, 0, 2, 0, 200000000, UART_F_BUSY_DETECT, "HiSilicon / Synopsys Designware UART"},
 	{"PNP0500", &uart_ns8250_class, 0, 0, 0, 0, 0, "Standard PC COM port"},
 	{"PNP0501", &uart_ns8250_class, 0, 0, 0, 0, 0, "16550A-compatible COM port"},
 	{"PNP0502", &uart_ns8250_class, 0, 0, 0, 0, 0, "Multiport serial device (non-intelligent 16550)"},