From bf83495040fcf273eba534f7c2c0cb2325d2240c Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 19 Dec 2013 23:38:58 +0530
Subject: zynq: serial: Simplify serial driver initialization

Define both serial uarts in the driver and return
default uart based on board configuration.

- Move baseaddresses to hardware.h
- Define default baudrate and clock values

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 drivers/serial/serial_zynq.c | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

(limited to 'drivers/serial')

diff --git a/drivers/serial/serial_zynq.c b/drivers/serial/serial_zynq.c
index ff28f3c..9a1ee00 100644
--- a/drivers/serial/serial_zynq.c
+++ b/drivers/serial/serial_zynq.c
@@ -10,6 +10,7 @@
 #include <asm/io.h>
 #include <linux/compiler.h>
 #include <serial.h>
+#include <asm/arch/hardware.h>
 
 #define ZYNQ_UART_SR_TXFULL	0x00000010 /* TX FIFO full */
 #define ZYNQ_UART_SR_RXEMPTY	0x00000002 /* RX FIFO empty */
@@ -33,13 +34,23 @@ struct uart_zynq {
 };
 
 static struct uart_zynq *uart_zynq_ports[2] = {
-#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR0
-	[0] = (struct uart_zynq *)CONFIG_ZYNQ_SERIAL_BASEADDR0,
+	[0] = (struct uart_zynq *)ZYNQ_SERIAL_BASEADDR0,
+	[1] = (struct uart_zynq *)ZYNQ_SERIAL_BASEADDR1,
+};
+
+#if !defined(CONFIG_ZYNQ_SERIAL_BAUDRATE0)
+# define CONFIG_ZYNQ_SERIAL_BAUDRATE0	CONFIG_BAUDRATE
 #endif
-#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR1
-	[1] = (struct uart_zynq *)CONFIG_ZYNQ_SERIAL_BASEADDR1,
+#if !defined(CONFIG_ZYNQ_SERIAL_BAUDRATE1)
+# define CONFIG_ZYNQ_SERIAL_BAUDRATE1	CONFIG_BAUDRATE
+#endif
+
+#if !defined(CONFIG_ZYNQ_SERIAL_CLOCK0)
+# define CONFIG_ZYNQ_SERIAL_CLOCK0	50000000
+#endif
+#if !defined(CONFIG_ZYNQ_SERIAL_CLOCK1)
+# define CONFIG_ZYNQ_SERIAL_CLOCK1	50000000
 #endif
-};
 
 struct uart_zynq_params {
 	u32 baudrate;
@@ -47,14 +58,10 @@ struct uart_zynq_params {
 };
 
 static struct uart_zynq_params uart_zynq_ports_param[2] = {
-#if defined(CONFIG_ZYNQ_SERIAL_BAUDRATE0) && defined(CONFIG_ZYNQ_SERIAL_CLOCK0)
 	[0].baudrate = CONFIG_ZYNQ_SERIAL_BAUDRATE0,
 	[0].clock = CONFIG_ZYNQ_SERIAL_CLOCK0,
-#endif
-#if defined(CONFIG_ZYNQ_SERIAL_BAUDRATE1) && defined(CONFIG_ZYNQ_SERIAL_CLOCK1)
 	[1].baudrate = CONFIG_ZYNQ_SERIAL_BAUDRATE1,
 	[1].clock = CONFIG_ZYNQ_SERIAL_CLOCK1,
-#endif
 };
 
 /* Set up the baud rate in gd struct */
@@ -186,20 +193,19 @@ struct serial_device uart_zynq_serial1_device =
 
 __weak struct serial_device *default_serial_console(void)
 {
+#if defined(CONFIG_ZYNQ_SERIAL_UART0)
 	if (uart_zynq_ports[0])
 		return &uart_zynq_serial0_device;
+#endif
+#if defined(CONFIG_ZYNQ_SERIAL_UART1)
 	if (uart_zynq_ports[1])
 		return &uart_zynq_serial1_device;
-
+#endif
 	return NULL;
 }
 
 void zynq_serial_initalize(void)
 {
-#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR0
 	serial_register(&uart_zynq_serial0_device);
-#endif
-#ifdef CONFIG_ZYNQ_SERIAL_BASEADDR1
 	serial_register(&uart_zynq_serial1_device);
-#endif
 }
-- 
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