From: 黄涛 <huangtao@rock-chips.com>
Date: Thu, 7 Aug 2014 09:57:54 +0000 (+0800)
Subject: rk_serial: 4 bytes IO accesses
X-Git-Tag: firefly_0821_release~4917
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c93122b5677e1332a7fe154f1b1bd92e5437e822;p=firefly-linux-kernel-4.4.55.git

rk_serial: 4 bytes IO accesses

RK3288 uart_dbg only support 4 bytes IO accesses
---

diff --git a/drivers/tty/serial/rk_serial.c b/drivers/tty/serial/rk_serial.c
index f4f33068e7b1..d7c1cb9c45e9 100644
--- a/drivers/tty/serial/rk_serial.c
+++ b/drivers/tty/serial/rk_serial.c
@@ -304,7 +304,7 @@ static inline unsigned int serial_in(struct uart_rk_port *up, int offset)
 {
 	offset = offset << 2;
 
-	return __raw_readb(up->port.membase + offset);
+	return __raw_readl(up->port.membase + offset);
 }
 
 /* Save the LCR value so it can be re-written when a Busy Detect IRQ occurs. */
@@ -325,7 +325,7 @@ static inline void dwapb_check_clear_ier(struct uart_rk_port *up, int offset)
 static inline void serial_out(struct uart_rk_port *up, int offset, unsigned char value)
 {
 	dwapb_save_out_value(up, offset, value);
-	__raw_writeb(value, up->port.membase + (offset << 2));
+	__raw_writel(value, up->port.membase + (offset << 2));
 	if (offset != UART_TX)
 		dsb();
 	dwapb_check_clear_ier(up, offset);