1/*-
2 * Copyright (c) 2012 Marius Strobl <marius@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Ethernut 5 board support
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: releng/10.3/sys/arm/at91/board_sam9260ek.c 266097 2014-05-14 23:51:07Z ian $");
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <machine/board.h>
37#include <arm/at91/at91_pioreg.h>
38#include <arm/at91/at91_piovar.h>
39#include <arm/at91/at91board.h>
40#include <arm/at91/at91sam9260reg.h>
41#include <arm/at91/at91_smc.h>
42#include <arm/at91/at91_gpio.h>
43#include <dev/nand/nfc_at91.h>
44
45static struct at91_smc_init nand_smc = {
46	.ncs_rd_setup		= 0,
47	.nrd_setup		= 1,
48	.ncs_wr_setup		= 0,
49	.nwe_setup		= 1,
50
51	.ncs_rd_pulse		= 3,
52	.nrd_pulse		= 3,
53	.ncs_wr_pulse		= 3,
54	.nwe_pulse		= 3,
55
56	.nrd_cycle		= 5,
57	.nwe_cycle		= 5,
58
59	.mode			= SMC_MODE_READ | SMC_MODE_WRITE | SMC_MODE_EXNW_DISABLED,
60	.tdf_cycles		= 2,
61};
62
63static struct at91_nand_params nand_param = {
64	.ale			= 1u << 21,
65	.cle			= 1u << 22,
66	.width			= 8,
67	.rnb_pin		= AT91_PIN_PC13,
68	.nce_pin		= AT91_PIN_PC14,
69	.cs			= 3,
70};
71
72static void
73bi_dbgu(void)
74{
75
76	/*
77	 * DBGU
78	 */
79	/* DRXD */
80	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB14, 0);
81	/* DTXD */
82	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB15, 1);
83}
84
85static void
86bi_emac(void)
87{
88
89	/*
90	 * EMAC
91	 */
92	/* ETX0 */
93	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA12, 0);
94	/* ETX1 */
95	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA13, 0);
96	/* ERX0 */
97	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA14, 0);
98	/* ERX1 */
99	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA15, 0);
100	/* ETXEN */
101	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA16, 0);
102	/* ERXDV */
103	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA17, 0);
104	/* ERXER */
105	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA18, 0);
106	/* ETXCK */
107	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA19, 0);
108	/* EMDC */
109	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA20, 0);
110	/* EMDIO */
111	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA21, 0);
112	/* Not RMII */
113	/* ETX2 */
114	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA10, 0);
115	/* ETX3 */
116	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA11, 0);
117	/* ETXER */
118	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA22, 0);
119	/* ERX2 */
120	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA25, 0);
121	/* ERX3 */
122	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA26, 0);
123	/* ERXCK */
124	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA27, 0);
125	/* ECRS */
126	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA28, 0);
127	/* ECOL */
128	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA29, 0);
129}
130
131static void
132bi_mmc(void)
133{
134
135	/*
136	 * MMC, wired to socket B.
137	 */
138	/* MCDB0 */
139	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA0, 1);
140	/* MCCDB */
141	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA1, 1);
142	/* MCDB3 */
143	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA3, 1);
144	/* MCDB2 */
145	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA4, 1);
146	/* MCDB1 */
147	at91_pio_use_periph_b(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA5, 1);
148	/* MCCK */
149	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA8, 1);
150
151	/*
152	 * SPI0 and MMC are wired together, since we don't support sharing
153	 * don't support the dataflash.  But if you did, you'd have to
154	 * use CS0 and CS1.
155	 */
156}
157
158static void
159bi_iic(void)
160{
161
162	/*
163	 * TWI.  Only one child on the iic bus, which we take care of
164	 * via hints.
165	 */
166	/* TWD */
167	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA23, 1);
168	/* TWCK */
169	at91_pio_use_periph_a(AT91SAM9260_PIOA_BASE, AT91C_PIO_PA24, 1);
170}
171
172static void
173bi_usart0(void)
174{
175
176	/*
177	 * USART0
178	 */
179	/* TXD0 */
180	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB4, 1);
181	/* RXD0 */
182	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB5, 0);
183	/* DSR0 */
184	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB22, 0);
185	/* DCD0 */
186	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB23, 0);
187	/* DTR0 */
188	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB24, 1);
189	/* RI0 */
190	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB25, 0);
191	/* RTS0 */
192	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB26, 1);
193	/* CTS0 */
194	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB27, 0);
195}
196
197static void
198bi_usart1(void)
199{
200	/*
201	 * USART1
202	 */
203	/* RTS1 */
204	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB28, 1);
205	/* CTS1 */
206	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB29, 0);
207	/* TXD1 */
208	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB6, 1);
209	/* RXD1 */
210	at91_pio_use_periph_a(AT91SAM9260_PIOB_BASE, AT91C_PIO_PB7, 0);
211}
212
213static void
214bi_nand(void)
215{
216	/* Samsung 256MB SLC Flash */
217
218	/* Setup Static Memory Controller */
219	at91_smc_setup(0, 3, &nand_smc);
220	at91_enable_nand(&nand_param);
221
222	/*
223	 * This assumes
224	 *  - RNB is on pin PC13
225	 *  - CE is on pin PC14
226	 *
227	 * Nothing actually uses RNB right now.
228	 *
229	 * For CE, this currently asserts it during board setup and leaves it
230	 * that way forever.
231	 *
232	 * All this can go away when the gpio pin-renumbering happens...
233	 */
234	at91_pio_use_gpio(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC13 | AT91C_PIO_PC14);
235	at91_pio_gpio_input(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC13);	/* RNB */
236	at91_pio_gpio_output(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC14, 0);	/* nCS */
237	at91_pio_gpio_clear(AT91SAM9260_PIOC_BASE, AT91C_PIO_PC14);	/* Assert nCS */
238}
239
240BOARD_INIT long
241board_init(void)
242{
243	bi_dbgu();
244	bi_emac();
245	bi_mmc();
246
247	/*
248	 * SPI1 is wired to a audio CODEC that we don't support, so
249	 * give it a pass.
250	 */
251
252	bi_iic();
253	bi_usart0();
254	bi_usart1();
255	/* USART2 - USART5 aren't wired up, except via PIO pins, ignore them. */
256
257	bi_nand();
258
259	return (at91_ramsize());
260}
261
262ARM_BOARD(AT91SAM9260EK, "Atmel SMA9260-EK")
263