can: at91_can: convert readl, writel their __raw pendants

Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/can/at91_can.c

@@ -199,13 +199,13 @@ static inline int get_tx_echo_mb(const struct at91_priv *priv)
 
 static inline u32 at91_read(const struct at91_priv *priv, enum at91_reg reg)
 {
-	return readl(priv->reg_base + reg);
+	return __raw_readl(priv->reg_base + reg);
 }
 
 static inline void at91_write(const struct at91_priv *priv, enum at91_reg reg,
 		u32 value)
 {
-	writel(value, priv->reg_base + reg);
+	__raw_writel(value, priv->reg_base + reg);
 }
 
 static inline void set_mb_mode_prio(const struct at91_priv *priv,