ixp: move serial to drivers/serial
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index c7a1882..b6fd0d7 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -32,6 +32,7 @@
COBJS-$(CONFIG_DRIVER_S3C4510_UART) += s3c4510b_uart.o
COBJS-$(CONFIG_S3C64XX) += s3c64xx.o
COBJS-y += serial.o
+COBJS-$(CONFIG_IXP_SERIAL) += serial_ixp.o
COBJS-$(CONFIG_MAX3100_SERIAL) += serial_max3100.o
COBJS-$(CONFIG_PL010_SERIAL) += serial_pl01x.o
COBJS-$(CONFIG_PL011_SERIAL) += serial_pl01x.o
diff --git a/drivers/serial/serial_ixp.c b/drivers/serial/serial_ixp.c
new file mode 100644
index 0000000..dd26af4
--- /dev/null
+++ b/drivers/serial/serial_ixp.c
@@ -0,0 +1,125 @@
+/*
+ * (C) Copyright 2002
+ * 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
+ *
+ */
+
+#include <common.h>
+#include <asm/arch/ixp425.h>
+
+/*
+ * 14.7456 MHz
+ * Baud Rate = --------------
+ * 16 x Divisor
+ */
+#define SERIAL_CLOCK 921600
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void serial_setbrg (void)
+{
+ unsigned int quot = 0;
+ int uart = CONFIG_SYS_IXP425_CONSOLE;
+
+ if ((gd->baudrate <= SERIAL_CLOCK) && (SERIAL_CLOCK % gd->baudrate == 0))
+ quot = SERIAL_CLOCK / gd->baudrate;
+ else
+ hang ();
+
+ IER(uart) = 0; /* Disable for now */
+ FCR(uart) = 0; /* No fifos enabled */
+
+ /* set baud rate */
+ LCR(uart) = LCR_WLS0 | LCR_WLS1 | LCR_DLAB;
+ DLL(uart) = quot & 0xff;
+ DLH(uart) = quot >> 8;
+ LCR(uart) = LCR_WLS0 | LCR_WLS1;
+#ifdef CONFIG_SERIAL_RTS_ACTIVE
+ MCR(uart) = MCR_RTS; /* set RTS active */
+#else
+ MCR(uart) = 0; /* set RTS inactive */
+#endif
+ IER(uart) = IER_UUE;
+}
+
+/*
+ * Initialise the serial port with the given baudrate. The settings
+ * are always 8 data bits, no parity, 1 stop bit, no start bits.
+ *
+ */
+int serial_init (void)
+{
+ serial_setbrg ();
+
+ return (0);
+}
+
+
+/*
+ * Output a single byte to the serial port.
+ */
+void serial_putc (const char c)
+{
+ /* wait for room in the tx FIFO on UART */
+ while ((LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_TEMT) == 0);
+
+ THR(CONFIG_SYS_IXP425_CONSOLE) = c;
+
+ /* If \n, also do \r */
+ if (c == '\n')
+ serial_putc ('\r');
+}
+
+/*
+ * 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.
+ */
+int serial_tstc (void)
+{
+ return LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_DR;
+}
+
+/*
+ * 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.
+ */
+int serial_getc (void)
+{
+ while (!(LSR(CONFIG_SYS_IXP425_CONSOLE) & LSR_DR));
+
+ return (char) RBR(CONFIG_SYS_IXP425_CONSOLE) & 0xff;
+}
+
+void
+serial_puts (const char *s)
+{
+ while (*s) {
+ serial_putc (*s++);
+ }
+}