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Linux/arch/arm/mach-at91/board-rsi-ews.c

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  1 /*
  2  * board-rsi-ews.c
  3  *
  4  *  Copyright (C)
  5  *  2005 SAN People,
  6  *  2008-2011 R-S-I Elektrotechnik GmbH & Co. KG
  7  *
  8  * Licensed under GPLv2 or later.
  9  */
 10 
 11 #include <linux/types.h>
 12 #include <linux/init.h>
 13 #include <linux/mm.h>
 14 #include <linux/module.h>
 15 #include <linux/platform_device.h>
 16 #include <linux/spi/spi.h>
 17 #include <linux/mtd/physmap.h>
 18 
 19 #include <asm/setup.h>
 20 #include <asm/mach-types.h>
 21 #include <asm/irq.h>
 22 
 23 #include <asm/mach/arch.h>
 24 #include <asm/mach/map.h>
 25 #include <asm/mach/irq.h>
 26 
 27 #include <mach/hardware.h>
 28 
 29 #include <linux/gpio.h>
 30 
 31 #include "at91_aic.h"
 32 #include "board.h"
 33 #include "generic.h"
 34 
 35 static void __init rsi_ews_init_early(void)
 36 {
 37         /* Initialize processor: 18.432 MHz crystal */
 38         at91_initialize(18432000);
 39 }
 40 
 41 /*
 42  * Ethernet
 43  */
 44 static struct macb_platform_data rsi_ews_eth_data __initdata = {
 45         .phy_irq_pin    = AT91_PIN_PC4,
 46         .is_rmii        = 1,
 47 };
 48 
 49 /*
 50  * USB Host
 51  */
 52 static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
 53         .ports          = 1,
 54         .vbus_pin       = {-EINVAL, -EINVAL},
 55         .overcurrent_pin= {-EINVAL, -EINVAL},
 56 };
 57 
 58 /*
 59  * SD/MC
 60  */
 61 static struct mci_platform_data __initdata rsi_ews_mci0_data = {
 62         .slot[0] = {
 63                 .bus_width      = 4,
 64                 .detect_pin     = AT91_PIN_PB27,
 65                 .wp_pin         = AT91_PIN_PB29,
 66         },
 67 };
 68 
 69 /*
 70  * I2C
 71  */
 72 static struct i2c_board_info rsi_ews_i2c_devices[] __initdata = {
 73         {
 74                 I2C_BOARD_INFO("ds1337", 0x68),
 75         },
 76         {
 77                 I2C_BOARD_INFO("24c01", 0x50),
 78         }
 79 };
 80 
 81 /*
 82  * LEDs
 83  */
 84 static struct gpio_led rsi_ews_leds[] = {
 85         {
 86                 .name                   = "led0",
 87                 .gpio                   = AT91_PIN_PB6,
 88                 .active_low             = 0,
 89         },
 90         {
 91                 .name                   = "led1",
 92                 .gpio                   = AT91_PIN_PB7,
 93                 .active_low             = 0,
 94         },
 95         {
 96                 .name                   = "led2",
 97                 .gpio                   = AT91_PIN_PB8,
 98                 .active_low             = 0,
 99         },
100         {
101                 .name                   = "led3",
102                 .gpio                   = AT91_PIN_PB9,
103                 .active_low             = 0,
104         },
105 };
106 
107 /*
108  * DataFlash
109  */
110 static struct spi_board_info rsi_ews_spi_devices[] = {
111         {       /* DataFlash chip 1*/
112                 .modalias       = "mtd_dataflash",
113                 .chip_select    = 0,
114                 .max_speed_hz   = 5 * 1000 * 1000,
115         },
116         {       /* DataFlash chip 2*/
117                 .modalias       = "mtd_dataflash",
118                 .chip_select    = 1,
119                 .max_speed_hz   = 5 * 1000 * 1000,
120         },
121 };
122 
123 /*
124  * NOR flash
125  */
126 static struct mtd_partition rsiews_nor_partitions[] = {
127         {
128                 .name           = "boot",
129                 .offset         = 0,
130                 .size           = 3 * SZ_128K,
131                 .mask_flags     = MTD_WRITEABLE
132         },
133         {
134                 .name           = "kernel",
135                 .offset         = MTDPART_OFS_NXTBLK,
136                 .size           = SZ_2M - (3 * SZ_128K)
137         },
138         {
139                 .name           = "root",
140                 .offset         = MTDPART_OFS_NXTBLK,
141                 .size           = SZ_8M
142         },
143         {
144                 .name           = "kernelupd",
145                 .offset         = MTDPART_OFS_NXTBLK,
146                 .size           = 3 * SZ_512K,
147                 .mask_flags     = MTD_WRITEABLE
148         },
149         {
150                 .name           = "rootupd",
151                 .offset         = MTDPART_OFS_NXTBLK,
152                 .size           = 9 * SZ_512K,
153                 .mask_flags     = MTD_WRITEABLE
154         },
155 };
156 
157 static struct physmap_flash_data rsiews_nor_data = {
158         .width          = 2,
159         .parts          = rsiews_nor_partitions,
160         .nr_parts       = ARRAY_SIZE(rsiews_nor_partitions),
161 };
162 
163 #define NOR_BASE        AT91_CHIPSELECT_0
164 #define NOR_SIZE        SZ_16M
165 
166 static struct resource nor_flash_resources[] = {
167         {
168                 .start  = NOR_BASE,
169                 .end    = NOR_BASE + NOR_SIZE - 1,
170                 .flags  = IORESOURCE_MEM,
171         }
172 };
173 
174 static struct platform_device rsiews_nor_flash = {
175         .name           = "physmap-flash",
176         .id             = 0,
177         .dev            = {
178                                 .platform_data  = &rsiews_nor_data,
179         },
180         .resource       = nor_flash_resources,
181         .num_resources  = ARRAY_SIZE(nor_flash_resources),
182 };
183 
184 /*
185  * Init Func
186  */
187 static void __init rsi_ews_board_init(void)
188 {
189         /* Serial */
190         /* DBGU on ttyS0. (Rx & Tx only) */
191         /* This one is for debugging */
192         at91_register_uart(0, 0, 0);
193 
194         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
195         /* Dialin/-out modem interface */
196         at91_register_uart(AT91RM9200_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS
197                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
198                            | ATMEL_UART_RI);
199 
200         /* USART3 on ttyS4. (Rx, Tx, RTS) */
201         /* RS485 communication */
202         at91_register_uart(AT91RM9200_ID_US3, 4, ATMEL_UART_RTS);
203         at91_add_device_serial();
204         at91_set_gpio_output(AT91_PIN_PA21, 0);
205         /* Ethernet */
206         at91_add_device_eth(&rsi_ews_eth_data);
207         /* USB Host */
208         at91_add_device_usbh(&rsi_ews_usbh_data);
209         /* I2C */
210         at91_add_device_i2c(rsi_ews_i2c_devices,
211                         ARRAY_SIZE(rsi_ews_i2c_devices));
212         /* SPI */
213         at91_add_device_spi(rsi_ews_spi_devices,
214                         ARRAY_SIZE(rsi_ews_spi_devices));
215         /* MMC */
216         at91_add_device_mci(0, &rsi_ews_mci0_data);
217         /* NOR Flash */
218         platform_device_register(&rsiews_nor_flash);
219         /* LEDs */
220         at91_gpio_leds(rsi_ews_leds, ARRAY_SIZE(rsi_ews_leds));
221 }
222 
223 MACHINE_START(RSI_EWS, "RSI EWS")
224         /* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */
225         .init_time      = at91rm9200_timer_init,
226         .map_io         = at91_map_io,
227         .handle_irq     = at91_aic_handle_irq,
228         .init_early     = rsi_ews_init_early,
229         .init_irq       = at91_init_irq_default,
230         .init_machine   = rsi_ews_board_init,
231 MACHINE_END
232 

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