1/*-
2 * Copyright (c) 2012 M. Warner Losh. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.

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19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD: head/sys/arm/at91/at91rm9200_devices.c 238439 2012-07-14 05:46:52Z imp $");
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/bus.h>
32#include <sys/kernel.h>
33#include <sys/malloc.h>
34#include <sys/module.h>
35

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75 * these pins to float. Instead, they should be pulled up to avoid
76 * mismatches. Linux does something similar when it configures the
77 * TX lines. This implies that we also allow the RX lines to float
78 * rather than be in the state they are left in by the boot loader.
79 * Since they are input pins, I think that this is the right thing
80 * to do.
81 */
82
83 switch (devid) {
84 case AT91_ID_DBGU:
85 at91_pio_use_periph_a(AT91RM92_PIOA_BASE, AT91C_PIO_PA30, 0); /* DRXD */
86 at91_pio_use_periph_a(AT91RM92_PIOA_BASE, AT91C_PIO_PA31, 1); /* DTXD */
87 break;
88
89 case AT91RM9200_ID_USART0:
90 at91_pio_use_periph_a(AT91RM92_PIOA_BASE, AT91C_PIO_PA17, 1); /* TXD0 */

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117 /* CTS - PB0 B periph */
118 /* RTS - PB1 B periph */
119 break;
120
121 default:
122 break;
123 }
124}