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board-sam9-l9260.c
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1 /*
2  * linux/arch/arm/mach-at91/board-sam9-l9260.c
3  *
4  * Copyright (C) 2005 SAN People
5  * Copyright (C) 2006 Atmel
6  * Copyright (C) 2007 Olimex Ltd
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21  */
22 
23 #include <linux/types.h>
24 #include <linux/gpio.h>
25 #include <linux/init.h>
26 #include <linux/mm.h>
27 #include <linux/module.h>
28 #include <linux/platform_device.h>
29 #include <linux/spi/spi.h>
30 
31 #include <mach/hardware.h>
32 #include <asm/setup.h>
33 #include <asm/mach-types.h>
34 #include <asm/irq.h>
35 
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38 #include <asm/mach/irq.h>
39 
40 #include <mach/board.h>
41 #include <mach/at91_aic.h>
42 #include <mach/at91sam9_smc.h>
43 
44 #include "sam9_smc.h"
45 #include "generic.h"
46 
47 
48 static void __init ek_init_early(void)
49 {
50  /* Initialize processor: 18.432 MHz crystal */
51  at91_initialize(18432000);
52 }
53 
54 /*
55  * USB Host port
56  */
57 static struct at91_usbh_data __initdata ek_usbh_data = {
58  .ports = 2,
59  .vbus_pin = {-EINVAL, -EINVAL},
60  .overcurrent_pin= {-EINVAL, -EINVAL},
61 };
62 
63 /*
64  * USB Device port
65  */
66 static struct at91_udc_data __initdata ek_udc_data = {
67  .vbus_pin = AT91_PIN_PC5,
68  .pullup_pin = -EINVAL, /* pull-up driven by UDC */
69 };
70 
71 
72 /*
73  * SPI devices.
74  */
75 static struct spi_board_info ek_spi_devices[] = {
76 #if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
77  { /* DataFlash chip */
78  .modalias = "mtd_dataflash",
79  .chip_select = 1,
80  .max_speed_hz = 15 * 1000 * 1000,
81  .bus_num = 0,
82  },
83 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
84  { /* DataFlash card */
85  .modalias = "mtd_dataflash",
86  .chip_select = 0,
87  .max_speed_hz = 15 * 1000 * 1000,
88  .bus_num = 0,
89  },
90 #endif
91 #endif
92 };
93 
94 
95 /*
96  * MACB Ethernet device
97  */
98 static struct macb_platform_data __initdata ek_macb_data = {
99  .phy_irq_pin = AT91_PIN_PA7,
100  .is_rmii = 0,
101 };
102 
103 
104 /*
105  * NAND flash
106  */
107 static struct mtd_partition __initdata ek_nand_partition[] = {
108  {
109  .name = "Bootloader Area",
110  .offset = 0,
111  .size = 10 * SZ_1M,
112  },
113  {
114  .name = "User Area",
115  .offset = MTDPART_OFS_NXTBLK,
116  .size = MTDPART_SIZ_FULL,
117  },
118 };
119 
120 static struct atmel_nand_data __initdata ek_nand_data = {
121  .ale = 21,
122  .cle = 22,
123  .det_pin = -EINVAL,
124  .rdy_pin = AT91_PIN_PC13,
125  .enable_pin = AT91_PIN_PC14,
126  .ecc_mode = NAND_ECC_SOFT,
127  .parts = ek_nand_partition,
128  .num_parts = ARRAY_SIZE(ek_nand_partition),
129 };
130 
131 static struct sam9_smc_config __initdata ek_nand_smc_config = {
132  .ncs_read_setup = 0,
133  .nrd_setup = 1,
134  .ncs_write_setup = 0,
135  .nwe_setup = 1,
136 
137  .ncs_read_pulse = 3,
138  .nrd_pulse = 3,
139  .ncs_write_pulse = 3,
140  .nwe_pulse = 3,
141 
142  .read_cycle = 5,
143  .write_cycle = 5,
144 
146  .tdf_cycles = 2,
147 };
148 
149 static void __init ek_add_device_nand(void)
150 {
151  /* configure chip-select 3 (NAND) */
152  sam9_smc_configure(0, 3, &ek_nand_smc_config);
153 
154  at91_add_device_nand(&ek_nand_data);
155 }
156 
157 
158 /*
159  * MCI (SD/MMC)
160  */
161 static struct mci_platform_data __initdata ek_mci0_data = {
162  .slot[1] = {
163  .bus_width = 4,
164  .detect_pin = AT91_PIN_PC8,
165  .wp_pin = AT91_PIN_PC4,
166  },
167 };
168 
169 /*
170  * LEDs
171  */
172 static struct gpio_led ek_leds[] = {
173  { /* D1 */
174  .name = "led1",
175  .gpio = AT91_PIN_PA9,
176  .active_low = 1,
177  .default_trigger = "heartbeat",
178  },
179  { /* D2 */
180  .name = "led2",
181  .gpio = AT91_PIN_PA6,
182  .active_low = 1,
183  .default_trigger = "timer",
184  }
185 };
186 
187 static void __init ek_board_init(void)
188 {
189  /* Serial */
190  /* DBGU on ttyS0. (Rx & Tx only) */
191  at91_register_uart(0, 0, 0);
192 
193  /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
196  | ATMEL_UART_RI);
197 
198  /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
201  /* USB Host */
202  at91_add_device_usbh(&ek_usbh_data);
203  /* USB Device */
204  at91_add_device_udc(&ek_udc_data);
205  /* SPI */
206  at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
207  /* NAND */
208  ek_add_device_nand();
209  /* Ethernet */
210  at91_add_device_eth(&ek_macb_data);
211  /* MMC */
212  at91_add_device_mci(0, &ek_mci0_data);
213  /* I2C */
215  /* LEDs */
216  at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
217 }
218 
219 MACHINE_START(SAM9_L9260, "Olimex SAM9-L9260")
220  /* Maintainer: Olimex */
221  .timer = &at91sam926x_timer,
222  .map_io = at91_map_io,
223  .handle_irq = at91_aic_handle_irq,
224  .init_early = ek_init_early,
226  .init_machine = ek_board_init,