Add support for the Samsung S3C2xx0 family of ARM SoCs written by

Andrew Turner.  The kernel supports the LN2410SBC evaluation board,
and likely others.  These parts (or similar ones) are in some open
hardware designs for phones.

Submitted by:	Andrew Turner

1 files changed, 78 insertions, 0 deletions

diff --git a/sys/arm/s3c2xx0/uart_cpu_s3c2410.c b/sys/arm/s3c2xx0/uart_cpu_s3c2410.c
new file mode 100644
index 0000000..835604b
--- /dev/null
+++ b/sys/arm/s3c2xx0/uart_cpu_s3c2410.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2003 Marcel Moolenaar
+ * Copyright (c) 2007 Andrew Turner
+ * 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 ``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 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.
+ */
+
+#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 <arm/s3c2xx0/s3c2xx0var.h>
+
+bus_space_tag_t uart_bus_space_io;
+bus_space_tag_t uart_bus_space_mem;
+
+extern struct uart_ops uart_s3c2410_ops;
+
+vm_offset_t s3c2410_uart_vaddr;
+unsigned int s3c2410_pclk;
+
+extern struct uart_class uart_s3c2410_class;
+
+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)
+{
+	if (devtype != UART_DEV_CONSOLE)
+		return (ENXIO);
+
+	di->ops = uart_getops(&uart_s3c2410_class);
+	di->bas.chan = 0;
+	di->bas.bst = &s3c2xx0_bs_tag;
+	di->bas.bsh = s3c2410_uart_vaddr;
+	di->bas.regshft = 0;
+	di->bas.rclk = s3c2410_pclk;
+	di->baudrate = 115200;
+	di->databits = 8;
+	di->stopbits = 1;
+	di->parity = UART_PARITY_NONE;
+	uart_bus_space_io = &s3c2xx0_bs_tag;
+	uart_bus_space_mem = NULL;
+	
+	return (0);
+}