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Diffstat (limited to 'sys/arm/at91/uart_cpu_at91usart.c')
-rw-r--r--sys/arm/at91/uart_cpu_at91usart.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/sys/arm/at91/uart_cpu_at91usart.c b/sys/arm/at91/uart_cpu_at91usart.c
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+++ b/sys/arm/at91/uart_cpu_at91usart.c
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+/*-
+ * Copyright (c) 2003 Marcel Moolenaar
+ * Copyright (c) 2006 M. Warner Losh
+ * 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 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 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.
+ */
+
+#include "opt_platform.h"
+#include "opt_uart.h"
+
+#ifndef FDT
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/cons.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <machine/bus.h>
+
+#include <dev/uart/uart.h>
+#include <dev/uart/uart_bus.h>
+#include <dev/uart/uart_cpu.h>
+
+#include <arm/at91/at91var.h>
+
+bus_space_tag_t uart_bus_space_io;
+bus_space_tag_t uart_bus_space_mem;
+
+extern struct uart_class at91_usart_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)
+{
+ struct uart_class *class;
+
+ class = &at91_usart_class;
+ if (class->uc_rclk == 0 && at91_master_clock != 0)
+ class->uc_rclk = at91_master_clock;
+ di->ops = uart_getops(class);
+ di->bas.chan = 0;
+ di->bas.bst = arm_base_bs_tag;
+ /*
+ * XXX: Not pretty, but will work because we map the needed addresses
+ * early. At least we probed this so that the console will work on
+ * all flavors of Atmel we can detect.
+ */
+ di->bas.bsh = soc_info.dbgu_base;
+ di->baudrate = 115200;
+ di->bas.regshft = 0;
+ di->bas.rclk = 0;
+ di->databits = 8;
+ di->stopbits = 1;
+ di->parity = UART_PARITY_NONE;
+ uart_bus_space_io = arm_base_bs_tag;
+ uart_bus_space_mem = NULL;
+ /* Check the environment for overrides */
+ uart_getenv(devtype, di, class);
+ return (0);
+}
+#endif