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Commit 1d673fb9 authored by Nicolas Ferre's avatar Nicolas Ferre Committed by Greg Kroah-Hartman
Browse files

serial: atmel: add support for new UART version 



Starting with sama5d2, the new UART revision has an hardware timer. So, add it
to the IP detection code and set the "has_hw_timer" property for it.

Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Reported-by: default avatarDavid Mosberger <davidm@egauge.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4b769371

drivers/tty/serial/atmel_serial.c

+4 −3
Original line number Diff line number Diff line
@@ -1710,15 +1710,16 @@ static void atmel_get_ip_name(struct uart_port *port) 
	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);

	int name = atmel_uart_readl(port, ATMEL_US_NAME);

	u32 version;

	u32 usart, dbgu_uart;

	u32 usart, dbgu_uart, new_uart;

	/* ASCII decoding for IP version */

	usart = 0x55534152;	/* USAR(T) */

	dbgu_uart = 0x44424755;	/* DBGU */

	new_uart = 0x55415254;	/* UART */



	atmel_port->has_hw_timer = false;



	if (name == usart) {

		dev_dbg(port->dev, "Usart with hw timer\n");

	if (name == usart || name == new_uart) {

		dev_dbg(port->dev, "Usart or uart with hw timer\n");

		atmel_port->has_hw_timer = true;

	} else if (name == dbgu_uart) {

		dev_dbg(port->dev, "Dbgu or uart without hw timer\n");