More initial RMI files. Note that these so far do NOT

compile and many of them may disappear. For example
the xlr_boot1_console.c is old code that is ifdef'd out.
I will clean these sorts of things up as I make progress
on the port. So far the only thing I have I think straightened
out is the bits around the interupt handling... and hey that
may be broke ;-)

1 files changed, 171 insertions, 0 deletions

diff --git a/sys/mips/rmi/uart_cpu_mips_xlr.c b/sys/mips/rmi/uart_cpu_mips_xlr.c
new file mode 100644
index 0000000..09703f5
--- /dev/null
+++ b/sys/mips/rmi/uart_cpu_mips_xlr.c
@@ -0,0 +1,171 @@
+/*-
+ * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: uart_cpu_mips_xlr.c,v 1.5 2008-07-16 20:22:39 jayachandranc Exp $
+ */
+/*
+ * Skeleton of this file was based on respective code for ARM
+ * code written by Olivier Houchard.
+ */
+/*
+ * XLRMIPS: This file is hacked from arm/... 
+ */
+#include "opt_uart.h"
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/cons.h>
+
+#include <machine/bus.h>
+
+#include <dev/uart/uart.h>
+#include <dev/uart/uart_cpu.h>
+#include <sys/kdb.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+
+static int xlr_uart_probe(struct uart_bas *bas);
+static void xlr_uart_init(struct uart_bas *bas, int, int, int, int);
+static void xlr_uart_term(struct uart_bas *bas);
+static void xlr_uart_putc(struct uart_bas *bas, int);
+static int xlr_uart_poll(struct uart_bas *bas);
+static int xlr_uart_getc(struct uart_bas *bas);
+struct mtx xlr_uart_mtx;    /*UartLock*/
+
+struct uart_ops xlr_uart_ns8250_ops = {
+	.probe = xlr_uart_probe,
+	.init = xlr_uart_init,
+	.term = xlr_uart_term,
+	.putc = xlr_uart_putc,
+	.poll = xlr_uart_poll,
+	.getc = xlr_uart_getc,
+};
+
+bus_space_tag_t uart_bus_space_io;
+bus_space_tag_t uart_bus_space_mem;
+
+static __inline void xlr_uart_lock(struct mtx *hwmtx)
+{
+	if(!mtx_initialized(hwmtx))
+		return;
+	if(!kdb_active && hwmtx != NULL)
+		mtx_lock_spin(hwmtx);		
+}
+
+static __inline void xlr_uart_unlock(struct mtx *hwmtx)
+{
+	if(!mtx_initialized(hwmtx))
+		return;
+	if(!kdb_active && hwmtx != NULL)
+		mtx_unlock_spin(hwmtx);		
+}
+
+
+static int xlr_uart_probe(struct uart_bas *bas)
+{
+	int res;
+	xlr_uart_lock(&xlr_uart_mtx);
+	res = uart_ns8250_ops.probe(bas);
+	xlr_uart_unlock(&xlr_uart_mtx);
+	return res;
+}
+
+static void xlr_uart_init(struct uart_bas *bas, int baudrate, int databits, 
+				int stopbits, int parity)
+
+{
+	xlr_uart_lock(&xlr_uart_mtx);
+	uart_ns8250_ops.init(bas,baudrate,databits,stopbits,parity);
+	xlr_uart_unlock(&xlr_uart_mtx);
+}
+
+static void xlr_uart_term(struct uart_bas *bas)
+{
+	xlr_uart_lock(&xlr_uart_mtx);
+	uart_ns8250_ops.term(bas);
+	xlr_uart_unlock(&xlr_uart_mtx);
+}
+
+static void xlr_uart_putc(struct uart_bas *bas, int c)
+{
+	xlr_uart_lock(&xlr_uart_mtx);
+	uart_ns8250_ops.putc(bas,c);
+	xlr_uart_unlock(&xlr_uart_mtx);
+}
+
+static int xlr_uart_poll(struct uart_bas *bas)
+{
+	int res;
+	xlr_uart_lock(&xlr_uart_mtx);
+	res = uart_ns8250_ops.poll(bas);
+	xlr_uart_unlock(&xlr_uart_mtx);
+	return res;
+}
+
+static int xlr_uart_getc(struct uart_bas *bas)
+{
+	return uart_ns8250_ops.getc(bas);
+}
+
+int
+uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
+{
+	return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
+}
+
+
+int
+uart_cpu_getdev(int devtype, struct uart_devinfo *di)
+{
+	di->ops = xlr_uart_ns8250_ops;
+	di->bas.chan = 0;
+	di->bas.bst = uart_bus_space_mem;
+	/* TODO Need to call bus_space_map() here */
+	di->bas.bsh = 0xbef14000; /* Try with UART0 */
+	di->bas.regshft = 2;
+	/* divisor = rclk / (baudrate * 16); */
+	di->bas.rclk = 66000000;
+
+	di->baudrate = 38400;
+	di->databits = 8;
+	di->stopbits = 1;
+	di->parity = UART_PARITY_NONE;
+
+	/* TODO: Read env variables for all console parameters */
+
+	return (0);
+}
+
+static void xlr_uart_mtx_init(void *dummy __unused)
+{
+	mtx_init(&xlr_uart_mtx, "uart lock",NULL,MTX_SPIN);
+}
+SYSINIT(xlr_init_uart_mtx, SI_SUB_LOCK, SI_ORDER_ANY, xlr_uart_mtx_init, NULL);
+