Merge branch 'nohz/printk-v8' into irq/core
[sfrench/cifs-2.6.git] / arch / arm / mach-at91 / board-sam9-l9260.c
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/at91sam9_smc.h>
41
42 #include "at91_aic.h"
43 #include "board.h"
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
145         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
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) */
194         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
195                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
196                            | ATMEL_UART_RI);
197
198         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
199         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
200         at91_add_device_serial();
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 */
214         at91_add_device_i2c(NULL, 0);
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,
225         .init_irq       = at91_init_irq_default,
226         .init_machine   = ek_board_init,
227 MACHINE_END