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Diffstat (limited to 'drivers/serial/s3c4510b_uart.c')
-rw-r--r--drivers/serial/s3c4510b_uart.c233
1 files changed, 0 insertions, 233 deletions
diff --git a/drivers/serial/s3c4510b_uart.c b/drivers/serial/s3c4510b_uart.c
deleted file mode 100644
index 423d26e6..0000000
--- a/drivers/serial/s3c4510b_uart.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- * Copyright (c) 2004 Cucy Systems (http://www.cucy.com)
- * Curt Brune <curt@cucy.com>
- *
- * (C) Copyright 2004
- * DAVE Srl
- * http://www.dave-tech.it
- * http://www.wawnet.biz
- * mailto:info@wawnet.biz
- *
- * (C) Copyright 2002-2004
- * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
- *
- * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
- *
- * 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
- *
- * MODULE: $Id:$
- * Description: UART/Serial interface for Samsung S3C4510B SoC
- * Runtime Env: ARM7TDMI
- * Change History:
- * 03-02-04 Create (Curt Brune) curt@cucy.com
- *
- */
-
-#include <common.h>
-
-#include <asm/hardware.h>
-#include "s3c4510b_uart.h"
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static UART *uart;
-
-/* flush serial input queue. returns 0 on success or negative error
- * number otherwise
- */
-static int serial_flush_input(void)
-{
- volatile u32 tmp;
-
- /* keep on reading as long as the receiver is not empty */
- while( uart->m_stat.bf.rxReady) {
- tmp = uart->m_rx;
- }
-
- return 0;
-}
-
-
-/* flush output queue. returns 0 on success or negative error number
- * otherwise
- */
-static int serial_flush_output(void)
-{
- /* wait until the transmitter is no longer busy */
- while( !uart->m_stat.bf.txBufEmpty);
-
- return 0;
-}
-
-
-static void s3c4510b_serial_setbrg(void)
-{
- UART_LINE_CTRL ulctrl;
- UART_CTRL uctrl;
- UART_BAUD_DIV ubd;
-
- serial_flush_output();
- serial_flush_input();
-
- /* control register */
- uctrl.ui = 0x0;
- uctrl.bf.rxMode = 0x1;
- uctrl.bf.rxIrq = 0x0;
- uctrl.bf.txMode = 0x1;
- uctrl.bf.DSR = 0x0;
- uctrl.bf.sendBreak = 0x0;
- uctrl.bf.loopBack = 0x0;
- uart->m_ctrl.ui = uctrl.ui;
-
- /* line control register */
- ulctrl.ui = 0x0;
- ulctrl.bf.wordLen = 0x3; /* 8 bit data */
- ulctrl.bf.nStop = 0x0; /* 1 stop bit */
- ulctrl.bf.parity = 0x0; /* no parity */
- ulctrl.bf.clk = 0x0; /* internal clock */
- ulctrl.bf.infra_red = 0x0; /* no infra_red */
- uart->m_lineCtrl.ui = ulctrl.ui;
-
- ubd.ui = 0x0;
-
- /* see table on page 10-15 in SAMSUNG S3C4510B manual */
- /* get correct divisor */
- switch(gd->baudrate) {
- case 1200: ubd.bf.cnt0 = 1301; break;
- case 2400: ubd.bf.cnt0 = 650; break;
- case 4800: ubd.bf.cnt0 = 324; break;
- case 9600: ubd.bf.cnt0 = 162; break;
- case 19200: ubd.bf.cnt0 = 80; break;
- case 38400: ubd.bf.cnt0 = 40; break;
- case 57600: ubd.bf.cnt0 = 26; break;
- case 115200: ubd.bf.cnt0 = 13; break;
- }
-
- uart->m_baudDiv.ui = ubd.ui;
- uart->m_baudCnt = 0x0;
- uart->m_baudClk = 0x0;
-
-}
-
-
-/*
- * Initialise the serial port with the given baudrate. The settings
- * are always 8 data bits, no parity, 1 stop bit, no start bits.
- *
- */
-static int s3c4510b_serial_init(void)
-{
-
-#if CONFIG_SERIAL1 == 1
- uart = (UART *)UART0_BASE;
-#elif CONFIG_SERIAL1 == 2
- uart = (UART *)UART1_BASE;
-#else
-#error CONFIG_SERIAL1 not equal to 1 or 2
-#endif
-
- serial_setbrg ();
-
- return (0);
-}
-
-
-/*
- * Output a single byte to the serial port.
- */
-static void s3c4510_serial_putc(const char c)
-{
- /* wait for room in the transmit FIFO */
- while( !uart->m_stat.bf.txBufEmpty);
-
- uart->m_tx = c;
-
- /*
- to be polite with serial console add a line feed
- to the carriage return character
- */
- if (c=='\n')
- serial_putc('\r');
-}
-
-/*
- * Test if an input byte is ready from the serial port. Returns non-zero on
- * success, 0 otherwise.
- */
-static int s3c4510b_serial_tstc(void)
-{
- return uart->m_stat.bf.rxReady;
-}
-
-/*
- * Read a single byte from the serial port. Returns 1 on success, 0
- * otherwise. When the function is succesfull, the character read is
- * written into its argument c.
- */
-static int s3c4510b_serial_getc(void)
-{
- int rv;
-
- for(;;) {
- rv = serial_tstc();
-
- if (rv) {
- return uart->m_rx & 0xFF;
- }
- }
-}
-
-static void s3c4510b_serial_puts(const char *s)
-{
- while (*s) {
- serial_putc (*s++);
- }
-
- /* busy wait for tx complete */
- while ( !uart->m_stat.bf.txComplete);
-
- /* clear break */
- uart->m_ctrl.bf.sendBreak = 0;
-
-}
-
-static struct serial_device s3c4510b_serial_drv = {
- .name = "s3c4510b_serial",
- .start = s3c4510b_serial_init,
- .stop = NULL,
- .setbrg = s3c4510b_serial_setbrg,
- .putc = s3c4510b_serial_putc,
- .puts = s3c4510b_serial_puts,
- .getc = s3c4510b_serial_getc,
- .tstc = s3c4510b_serial_tstc,
-};
-
-void s3c4510b_serial_initialize(void)
-{
- serial_register(&s3c4510b_serial_drv);
-}
-
-__weak struct serial_device *default_serial_console(void)
-{
- return &s3c4510b_serial_drv;
-}