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Linux/arch/arm/mach-at91/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/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         .init_time      = at91sam926x_pit_init,
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
228 

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