X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fserial%2Fof_serial.c;h=8fa0ff561e9fbd901acb46787bff587b035ddd79;hb=f1453ee3a4da94250849606882948c590a4ad8dd;hp=8aacfb78deabe03e08ca8d8b4df0e6235eff35ee;hpb=e9b62693ae0a1e13ccc97a6792d9a7770c8d1b5b;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c
index 8aacfb78dea..8fa0ff561e9 100644
--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -13,8 +13,8 @@
 #include <linux/module.h>
 #include <linux/serial_core.h>
 #include <linux/serial_8250.h>
+#include <linux/of_platform.h>
 
-#include <asm/of_platform.h>
 #include <asm/prom.h>
 
 struct of_serial_info {
@@ -31,7 +31,8 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev,
 	struct resource resource;
 	struct device_node *np = ofdev->node;
 	const unsigned int *clk, *spd;
-	int ret;
+	const u32 *prop;
+	int ret, prop_size;
 
 	memset(port, 0, sizeof *port);
 	spd = of_get_property(np, "current-speed", NULL);
@@ -49,6 +50,17 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev,
 
 	spin_lock_init(&port->lock);
 	port->mapbase = resource.start;
+
+	/* Check for shifted address mapping */
+	prop = of_get_property(np, "reg-offset", &prop_size);
+	if (prop && (prop_size == sizeof(u32)))
+		port->mapbase += *prop;
+
+	/* Check for registers offset within the devices address range */
+	prop = of_get_property(np, "reg-shift", &prop_size);
+	if (prop && (prop_size == sizeof(u32)))
+		port->regshift = *prop;
+
 	port->irq = irq_of_parse_and_map(np, 0);
 	port->iotype = UPIO_MEM;
 	port->type = type;