X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fserial%2Fserial_pl01x.c;fp=drivers%2Fserial%2Fserial_pl010.c;h=d0497ec418063bd5085cc3104bd1f153f94dc540;hb=20c9226cb8cab08a111ee73db04e62d943ee0c97;hp=134ed0967fb77b0d8d5e17e0e67c49dfc897e645;hpb=0817d688f307ee2c0598e79175c94a40ce90337b;p=platform%2Fkernel%2Fu-boot.git

diff --git a/drivers/serial/serial_pl010.c b/drivers/serial/serial_pl01x.c
similarity index 66%
rename from drivers/serial/serial_pl010.c
rename to drivers/serial/serial_pl01x.c
index 134ed09..d0497ec 100644
--- a/drivers/serial/serial_pl010.c
+++ b/drivers/serial/serial_pl01x.c
@@ -31,24 +31,28 @@
 #include <common.h>
 #include <watchdog.h>
 
-#ifdef CFG_PL010_SERIAL
+#if defined(CFG_PL010_SERIAL) || defined(CFG_PL011_SERIAL)
 
-#include "serial_pl011.h"
+#include "serial_pl01x.h"
 
 #define IO_WRITE(addr, val) (*(volatile unsigned int *)(addr) = (val))
 #define IO_READ(addr) (*(volatile unsigned int *)(addr))
 
-/* Integrator AP has two UARTs, we use the first one, at 38400-8-N-1 */
+/*
+ * Integrator AP has two UARTs, we use the first one, at 38400-8-N-1
+ * Integrator CP has two UARTs, use the first one, at 38400-8-N-1
+ * Versatile PB has four UARTs.
+ */
 #define CONSOLE_PORT CONFIG_CONS_INDEX
 #define baudRate CONFIG_BAUDRATE
 static volatile unsigned char *const port[] = CONFIG_PL01x_PORTS;
 #define NUM_PORTS (sizeof(port)/sizeof(port[0]))
 
+static void pl01x_putc (int portnum, char c);
+static int pl01x_getc (int portnum);
+static int pl01x_tstc (int portnum);
 
-static void pl010_putc (int portnum, char c);
-static int pl010_getc (int portnum);
-static int pl010_tstc (int portnum);
-
+#ifdef CFG_PL010_SERIAL
 
 int serial_init (void)
 {
@@ -103,15 +107,64 @@ int serial_init (void)
 	 */
 	IO_WRITE (port[CONSOLE_PORT] + UART_PL010_CR, (UART_PL010_CR_UARTEN));
 
-	return (0);
+	return 0;
 }
 
+#endif /* CFG_PL010_SERIAL */
+
+#ifdef CFG_PL011_SERIAL
+
+int serial_init (void)
+{
+	unsigned int temp;
+	unsigned int divider;
+	unsigned int remainder;
+	unsigned int fraction;
+
+	/*
+	 ** First, disable everything.
+	 */
+	IO_WRITE (port[CONSOLE_PORT] + UART_PL011_CR, 0x0);
+
+	/*
+	 ** Set baud rate
+	 **
+	 ** IBRD = UART_CLK / (16 * BAUD_RATE)
+	 ** FBRD = ROUND((64 * MOD(UART_CLK,(16 * BAUD_RATE))) / (16 * BAUD_RATE))
+	 */
+	temp = 16 * baudRate;
+	divider = CONFIG_PL011_CLOCK / temp;
+	remainder = CONFIG_PL011_CLOCK % temp;
+	temp = (8 * remainder) / baudRate;
+	fraction = (temp >> 1) + (temp & 1);
+
+	IO_WRITE (port[CONSOLE_PORT] + UART_PL011_IBRD, divider);
+	IO_WRITE (port[CONSOLE_PORT] + UART_PL011_FBRD, fraction);
+
+	/*
+	 ** Set the UART to be 8 bits, 1 stop bit, no parity, fifo enabled.
+	 */
+	IO_WRITE (port[CONSOLE_PORT] + UART_PL011_LCRH,
+		  (UART_PL011_LCRH_WLEN_8 | UART_PL011_LCRH_FEN));
+
+	/*
+	 ** Finally, enable the UART
+	 */
+	IO_WRITE (port[CONSOLE_PORT] + UART_PL011_CR,
+		  (UART_PL011_CR_UARTEN | UART_PL011_CR_TXE |
+		   UART_PL011_CR_RXE));
+
+	return 0;
+}
+
+#endif /* CFG_PL011_SERIAL */
+
 void serial_putc (const char c)
 {
 	if (c == '\n')
-		pl010_putc (CONSOLE_PORT, '\r');
+		pl01x_putc (CONSOLE_PORT, '\r');
 
-	pl010_putc (CONSOLE_PORT, c);
+	pl01x_putc (CONSOLE_PORT, c);
 }
 
 void serial_puts (const char *s)
@@ -123,19 +176,19 @@ void serial_puts (const char *s)
 
 int serial_getc (void)
 {
-	return pl010_getc (CONSOLE_PORT);
+	return pl01x_getc (CONSOLE_PORT);
 }
 
 int serial_tstc (void)
 {
-	return pl010_tstc (CONSOLE_PORT);
+	return pl01x_tstc (CONSOLE_PORT);
 }
 
 void serial_setbrg (void)
 {
 }
 
-static void pl010_putc (int portnum, char c)
+static void pl01x_putc (int portnum, char c)
 {
 	/* Wait until there is space in the FIFO */
 	while (IO_READ (port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_TXFF)
@@ -145,7 +198,7 @@ static void pl010_putc (int portnum, char c)
 	IO_WRITE (port[portnum] + UART_PL01x_DR, c);
 }
 
-static int pl010_getc (int portnum)
+static int pl01x_getc (int portnum)
 {
 	unsigned int data;
 
@@ -165,7 +218,7 @@ static int pl010_getc (int portnum)
 	return (int) data;
 }
 
-static int pl010_tstc (int portnum)
+static int pl01x_tstc (int portnum)
 {
 	WATCHDOG_RESET();
 	return !(IO_READ (port[portnum] + UART_PL01x_FR) &