board_sam9g20ek.c revision 331722 
1/*-
2 * Copyright (c) 2009 Greg Ansley.  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.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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/*
27 * This board file can be used for both:
28 * Atmel SAM9G20-EK Development Card
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: stable/11/sys/arm/at91/board_sam9g20ek.c 331722 2018-03-29 02:50:57Z eadler $");
33#include <sys/param.h>
34#include <sys/systm.h>
35
36#include <machine/board.h>
37#include <arm/at91/at91board.h>
38#include <arm/at91/at91reg.h>
39#include <arm/at91/at91var.h>
40#include <arm/at91/at91sam9g20reg.h>
41#include <arm/at91/at91_piovar.h>
42#include <arm/at91/at91_pio_sam9g20.h>
43//#include <arm/at91/at91_led.h>
44
45BOARD_INIT long
46board_init(void)
47{
48	/* PIOB's A periph: Turn USART 0's TX/RX pins */
49	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB14_DRXD, 0);
50	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB15_DTXD, 1);
51
52	/* PIOB's A periph: Turn USART 0's TX/RX pins */
53	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB4_TXD0, 1);
54	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB5_RXD0, 0);
55	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB22_DSR0, 0);
56	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB23_DCD0, 0);
57	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB24_DTR0, 1);
58	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB25_RI0, 0);
59	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB26_RTS0, 1);
60	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB27_CTS0, 0);
61
62	/* PIOB's A periph: Turn USART 1's TX/RX pins */
63	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB6_TXD1, 1);
64	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB7_RXD1, 0);
65	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB28_RTS1, 1);
66	at91_pio_use_periph_a(AT91SAM9G20_PIOB_BASE, AT91C_PB29_CTS1, 0);
67
68	/*  TWI Two-wire Serial Data */
69	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA23_TWD,  1);
70	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA24_TWCK, 1);
71
72#if 1
73	/*
74	 * Turn off Clock to DataFlash, conflicts with MCI clock.
75	 */
76	at91_pio_use_gpio(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA2);
77	at91_pio_gpio_input(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA2);
78
79	/* Turn off chip select to DataFlash */
80	at91_pio_gpio_output(AT91SAM9G20_PIOC_BASE,AT91C_PIO_PC11, 0);
81	at91_pio_gpio_set(AT91SAM9G20_PIOC_BASE,AT91C_PIO_PC11);
82	at91_pio_use_gpio(AT91SAM9G20_PIOC_BASE,AT91C_PIO_PC11);
83
84	/*  Multimedia Card  */
85	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA0_MCDB0, 1);
86	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA1_MCCDB, 1);
87	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA3_MCDB3, 1);
88	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA4_MCDB2, 1);
89	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA5_MCDB1, 1);
90	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA8_MCCK,  1);
91	at91_pio_use_gpio(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC9);
92#else
93	/* SPI0 to DataFlash */
94	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA0, 0);
95	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA1, 0);
96	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE, AT91C_PIO_PA2, 0);
97	at91_pio_use_periph_b(AT91SAM9G20_PIOC_BASE, AT91C_PIO_PC11,0);
98
99	at91_pio_gpio_input(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA8);
100	at91_pio_use_gpio(AT91SAM9G20_PIOA_BASE,AT91C_PIO_PA8);
101#endif
102
103	/* EMAC */
104	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA12_ETX0 ,  0);
105	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA13_ETX1,   0);
106	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA14_ERX0,   0);
107	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA15_ERX1,   0);
108	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA16_ETXEN,  0);
109	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA17_ERXDV,  0);
110	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA18_ERXER,  0);
111	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA19_ETXCK,  0);
112	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA20_EMDC,   0);
113	at91_pio_use_periph_a(AT91SAM9G20_PIOA_BASE,AT91C_PA21_EMDIO,  0);
114
115	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA10_ETX2_0, 0);
116	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA11_ETX3_0, 0);
117	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA22_ETXER,  0);
118	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA25_ERX2,   0);
119	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA26_ERX3,   0);
120	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA27_ERXCK,  0);
121	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA28_ECRS,   0);
122	at91_pio_use_periph_b(AT91SAM9G20_PIOA_BASE,AT91C_PA29_ECOL,   0);
123
124	return (at91_ramsize());
125}
126
127ARM_BOARD(AT91SAM9G20, "Atmel SAM9G20-EK Development Card");
128