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1/*
2 * linux/arch/arm/mach-at91/board-ek.c
3 *
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2006 Atmel
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <linux/types.h>
23#include <linux/init.h>
24#include <linux/mm.h>
25#include <linux/module.h>
26#include <linux/platform_device.h>
27#include <linux/spi/spi.h>
28#include <linux/dm9000.h>
29
30#include <asm/hardware.h>
31#include <asm/setup.h>
32#include <asm/mach-types.h>
33#include <asm/irq.h>
34
35#include <asm/mach/arch.h>
36#include <asm/mach/map.h>
37#include <asm/mach/irq.h>
38
39#include <asm/arch/board.h>
40#include <asm/arch/gpio.h>
41#include <asm/arch/at91sam926x_mc.h>
42
43#include "generic.h"
44
45
46/*
47 * Serial port configuration.
48 * 0 .. 2 = USART0 .. USART2
49 * 3 = DBGU
50 */
51static struct at91_uart_config __initdata ek_uart_config = {
52 .console_tty = 0, /* ttyS0 */
53 .nr_tty = 1,
54 .tty_map = { 3, -1, -1, -1 } /* ttyS0, ..., ttyS3 */
55};
56
57static void __init ek_map_io(void)
58{
59 /* Initialize processor: 18.432 MHz crystal */
60 at91sam9261_initialize(18432000);
61
62 /* Setup the serial ports and console */
63 at91_init_serial(&ek_uart_config);
64}
65
66static void __init ek_init_irq(void)
67{
68 at91sam9261_init_interrupts(NULL);
69}
70
71
72/*
73 * DM9000 ethernet device
74 */
75#if defined(CONFIG_DM9000)
76static struct resource at91sam9261_dm9000_resource[] = {
77 [0] = {
78 .start = AT91_CHIPSELECT_2,
79 .end = AT91_CHIPSELECT_2 + 3,
80 .flags = IORESOURCE_MEM
81 },
82 [1] = {
83 .start = AT91_CHIPSELECT_2 + 0x44,
84 .end = AT91_CHIPSELECT_2 + 0xFF,
85 .flags = IORESOURCE_MEM
86 },
87 [2] = {
88 .start = AT91_PIN_PC11,
89 .end = AT91_PIN_PC11,
90 .flags = IORESOURCE_IRQ
91 }
92};
93
94static struct dm9000_plat_data dm9000_platdata = {
95 .flags = DM9000_PLATF_16BITONLY,
96};
97
98static struct platform_device at91sam9261_dm9000_device = {
99 .name = "dm9000",
100 .id = 0,
101 .num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
102 .resource = at91sam9261_dm9000_resource,
103 .dev = {
104 .platform_data = &dm9000_platdata,
105 }
106};
107
108static void __init ek_add_device_dm9000(void)
109{
110 /*
111 * Configure Chip-Select 2 on SMC for the DM9000.
112 * Note: These timings were calculated for MASTER_CLOCK = 100000000
113 * according to the DM9000 timings.
114 */
115 at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
116 at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
117 at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
118 at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
119
120 /* Configure Reset signal as output */
121 at91_set_gpio_output(AT91_PIN_PC10, 0);
122
123 /* Configure Interrupt pin as input, no pull-up */
124 at91_set_gpio_input(AT91_PIN_PC11, 0);
125
126 platform_device_register(&at91sam9261_dm9000_device);
127}
128#else
129static void __init ek_add_device_dm9000(void) {}
130#endif /* CONFIG_DM9000 */
131
132
133/*
134 * USB Host Port
135 */
136static struct at91_usbh_data __initdata ek_usbh_data = {
137 .ports = 2,
138};
139
140
141/*
142 * USB Device Port
143 */
144static struct at91_udc_data __initdata ek_udc_data = {
145 .vbus_pin = AT91_PIN_PB29,
146 .pullup_pin = 0, /* pull-up driven by UDC */
147};
148
149
150/*
151 * MCI (SD/MMC)
152 */
153static struct at91_mmc_data __initdata ek_mmc_data = {
154 .wire4 = 1,
155// .det_pin = ... not connected
156// .wp_pin = ... not connected
157// .vcc_pin = ... not connected
158};
159
160
161/*
162 * NAND flash
163 */
164static struct mtd_partition __initdata ek_nand_partition[] = {
165 {
166 .name = "Partition 1",
167 .offset = 0,
168 .size = 256 * 1024,
169 },
170 {
171 .name = "Partition 2",
172 .offset = 256 * 1024 ,
173 .size = MTDPART_SIZ_FULL,
174 },
175};
176
177static struct mtd_partition *nand_partitions(int size, int *num_partitions)
178{
179 *num_partitions = ARRAY_SIZE(ek_nand_partition);
180 return ek_nand_partition;
181}
182
183static struct at91_nand_data __initdata ek_nand_data = {
184 .ale = 22,
185 .cle = 21,
186// .det_pin = ... not connected
187 .rdy_pin = AT91_PIN_PC15,
188 .enable_pin = AT91_PIN_PC14,
189 .partition_info = nand_partitions,
190#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
191 .bus_width_16 = 1,
192#else
193 .bus_width_16 = 0,
194#endif
195};
196
197/*
198 * SPI devices
199 */
200static struct spi_board_info ek_spi_devices[] = {
201 { /* DataFlash chip */
202 .modalias = "mtd_dataflash",
203 .chip_select = 0,
204 .max_speed_hz = 15 * 1000 * 1000,
205 .bus_num = 0,
206 },
207#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
208 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
209 .modalias = "mtd_dataflash",
210 .chip_select = 3,
211 .max_speed_hz = 15 * 1000 * 1000,
212 .bus_num = 0,
213 },
214#elif defined(CONFIG_SND_AT73C213)
215 { /* AT73C213 DAC */
216 .modalias = "snd_at73c213",
217 .chip_select = 3,
218 .max_speed_hz = 10 * 1000 * 1000,
219 .bus_num = 0,
220 },
221#endif
222};
223
224
225static void __init ek_board_init(void)
226{
227 /* Serial */
228 at91_add_device_serial();
229 /* USB Host */
230 at91_add_device_usbh(&ek_usbh_data);
231 /* USB Device */
232 at91_add_device_udc(&ek_udc_data);
233 /* I2C */
234 at91_add_device_i2c();
235 /* NAND */
236 at91_add_device_nand(&ek_nand_data);
237 /* DM9000 ethernet */
238 ek_add_device_dm9000();
239
240 /* spi0 and mmc/sd share the same PIO pins */
241#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
242 /* SPI */
243 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
244#else
245 /* MMC */
246 at91_add_device_mmc(&ek_mmc_data);
247#endif
248}
249
250MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
251 /* Maintainer: Atmel */
252 .phys_io = AT91_BASE_SYS,
253 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
254 .boot_params = AT91_SDRAM_BASE + 0x100,
255 .timer = &at91sam926x_timer,
256 .map_io = ek_map_io,
257 .init_irq = ek_init_irq,
258 .init_machine = ek_board_init,
259MACHINE_END