[U-Boot] [PATCH 2/2] serial_sh: Add standrad SCI (w/o FIFO) support

[Yoshinori Sato <ysato@users.sourceforge.jp>]

Add support for standard type SCI (without FIFO) port.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 doc/device-tree-bindings/serial/sh.txt | 2 +-
 drivers/serial/serial_sh.c             | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/doc/device-tree-bindings/serial/sh.txt b/doc/device-tree-bindings/serial/sh.txt
index b23b135..99634a5 100644
--- a/doc/device-tree-bindings/serial/sh.txt
+++ b/doc/device-tree-bindings/serial/sh.txt
@@ -1,6 +1,6 @@
 * Renesas SCI serial interface
 
 Required properties:
-- compatible: must be "renesas,scif" or "renesas,scifa"
+- compatible: must be "renesas,scif", "renesas,scifa" or "renesas,sci"
 - reg: exactly one register range with length
 - clock: input clock frequency for the SCI unit
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index 32b2bf0..d2a23a6 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -47,6 +47,11 @@ static int scif_rxfill(struct uart_port *port)
 	else
 		return sci_in(port, SCRFDR);
 }
+#elif defined(CONFIG_SCI)
+static int scif_rxfill(struct uart_port *port)
+{
+	return (sci_in(port, SCxSR) & SCxSR_RDxF(port)) ? 1 : 0;
+}
 #else
 static int scif_rxfill(struct uart_port *port)
 {
@@ -205,6 +210,7 @@ static const struct dm_serial_ops sh_serial_ops = {
 
 #ifdef CONFIG_OF_CONTROL
 static const struct udevice_id sh_serial_id[] ={
+	{.compatible = "renesas,sci", .data = PORT_SCI},
 	{.compatible = "renesas,scif", .data = PORT_SCIF},
 	{.compatible = "renesas,scifa", .data = PORT_SCIFA},
 	{}
@@ -262,6 +268,8 @@ U_BOOT_DRIVER(serial_sh) = {
 
 #if defined(CONFIG_SCIF_A)
 	#define SCIF_BASE_PORT	PORT_SCIFA
+#elif defined(CONFIG_SCI)
+	#define SCIF_BASE_PORT  PORT_SCI
 #else
 	#define SCIF_BASE_PORT	PORT_SCIF
 #endif
-- 
2.1.4