summaryrefslogtreecommitdiff
path: root/drivers/serial_pl010.c
diff options
context:
space:
mode:
authorPeter Pearse <peter.pearse@arm.com>2007-10-23 10:22:16 +0100
committerPeter Pearse <peter.pearse@arm.com>2007-10-23 10:22:16 +0100
commit7a9348728ebda63cdbaacffd83099aa71d9d4c54 (patch)
tree615f701ffa7bb11b9a7fe233ba512a89720c52d1 /drivers/serial_pl010.c
parent5441f61a3d8b7034f19fc1361183e936198e6dbb (diff)
downloadu-boot-imx-7a9348728ebda63cdbaacffd83099aa71d9d4c54.zip
u-boot-imx-7a9348728ebda63cdbaacffd83099aa71d9d4c54.tar.gz
u-boot-imx-7a9348728ebda63cdbaacffd83099aa71d9d4c54.tar.bz2
Move PL01* serial drivers to drivers/serial and adjust Makefiles.
Diffstat (limited to 'drivers/serial_pl010.c')
-rw-r--r--drivers/serial_pl010.c171
1 files changed, 0 insertions, 171 deletions
diff --git a/drivers/serial_pl010.c b/drivers/serial_pl010.c
deleted file mode 100644
index 417b6ae..0000000
--- a/drivers/serial_pl010.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * (C) Copyright 2000
- * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
- *
- * (C) Copyright 2004
- * ARM Ltd.
- * Philippe Robin, <philippe.robin@arm.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/* Simple U-Boot driver for the PrimeCell PL011 UARTs on the IntegratorCP */
-/* Should be fairly simple to make it work with the PL010 as well */
-
-#include <common.h>
-
-#ifdef CFG_PL010_SERIAL
-
-#include "serial_pl011.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 */
-#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 pl010_putc (int portnum, char c);
-static int pl010_getc (int portnum);
-static int pl010_tstc (int portnum);
-
-
-int serial_init (void)
-{
- unsigned int divisor;
-
- /*
- ** First, disable everything.
- */
- IO_WRITE (port[CONSOLE_PORT] + UART_PL010_CR, 0x0);
-
- /*
- ** Set baud rate
- **
- */
- switch (baudRate) {
- case 9600:
- divisor = UART_PL010_BAUD_9600;
- break;
-
- case 19200:
- divisor = UART_PL010_BAUD_9600;
- break;
-
- case 38400:
- divisor = UART_PL010_BAUD_38400;
- break;
-
- case 57600:
- divisor = UART_PL010_BAUD_57600;
- break;
-
- case 115200:
- divisor = UART_PL010_BAUD_115200;
- break;
-
- default:
- divisor = UART_PL010_BAUD_38400;
- }
-
- IO_WRITE (port[CONSOLE_PORT] + UART_PL010_LCRM,
- ((divisor & 0xf00) >> 8));
- IO_WRITE (port[CONSOLE_PORT] + UART_PL010_LCRL, (divisor & 0xff));
-
- /*
- ** Set the UART to be 8 bits, 1 stop bit, no parity, fifo enabled.
- */
- IO_WRITE (port[CONSOLE_PORT] + UART_PL010_LCRH,
- (UART_PL010_LCRH_WLEN_8 | UART_PL010_LCRH_FEN));
-
- /*
- ** Finally, enable the UART
- */
- IO_WRITE (port[CONSOLE_PORT] + UART_PL010_CR, (UART_PL010_CR_UARTEN));
-
- return (0);
-}
-
-void serial_putc (const char c)
-{
- if (c == '\n')
- pl010_putc (CONSOLE_PORT, '\r');
-
- pl010_putc (CONSOLE_PORT, c);
-}
-
-void serial_puts (const char *s)
-{
- while (*s) {
- serial_putc (*s++);
- }
-}
-
-int serial_getc (void)
-{
- return pl010_getc (CONSOLE_PORT);
-}
-
-int serial_tstc (void)
-{
- return pl010_tstc (CONSOLE_PORT);
-}
-
-void serial_setbrg (void)
-{
-}
-
-static void pl010_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);
-
- /* Send the character */
- IO_WRITE (port[portnum] + UART_PL01x_DR, c);
-}
-
-static int pl010_getc (int portnum)
-{
- unsigned int data;
-
- /* Wait until there is data in the FIFO */
- while (IO_READ (port[portnum] + UART_PL01x_FR) & UART_PL01x_FR_RXFE);
-
- data = IO_READ (port[portnum] + UART_PL01x_DR);
-
- /* Check for an error flag */
- if (data & 0xFFFFFF00) {
- /* Clear the error */
- IO_WRITE (port[portnum] + UART_PL01x_ECR, 0xFFFFFFFF);
- return -1;
- }
-
- return (int) data;
-}
-
-static int pl010_tstc (int portnum)
-{
- return !(IO_READ (port[portnum] + UART_PL01x_FR) &
- UART_PL01x_FR_RXFE);
-}
-
-#endif