1 /*
2  * arch/arm/mach-at91/include/mach/board.h
3  *
4  *  Copyright (C) 2005 HP Labs
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20 
21 /*
22  * These are data structures found in platform_device.dev.platform_data,
23  * and describing board-specific data needed by drivers.  For example,
24  * which pin is used for a given GPIO role.
25  *
26  * In 2.6, drivers should strongly avoid board-specific knowledge so
27  * that supporting new boards normally won't require driver patches.
28  * Most board-specific knowledge should be in arch/.../board-*.c files.
29  */
30 
31 #ifndef __ASM_ARCH_BOARD_H
32 #define __ASM_ARCH_BOARD_H
33 
34 #include <linux/mtd/partitions.h>
35 #include <linux/device.h>
36 #include <linux/i2c.h>
37 #include <linux/leds.h>
38 #include <linux/spi/spi.h>
39 #include <linux/usb/atmel_usba_udc.h>
40 #include <linux/atmel-mci.h>
41 #include <sound/atmel-ac97c.h>
42 #include <linux/serial.h>
43 #include <linux/platform_data/macb.h>
44 
45  /* USB Device */
46 struct at91_udc_data {
47 	int	vbus_pin;		/* high == host powering us */
48 	u8	vbus_active_low;	/* vbus polarity */
49 	u8	vbus_polled;		/* Use polling, not interrupt */
50 	int	pullup_pin;		/* active == D+ pulled up */
51 	u8	pullup_active_low;	/* true == pullup_pin is active low */
52 };
53 extern void __init at91_add_device_udc(struct at91_udc_data *data);
54 
55  /* USB High Speed Device */
56 extern void __init at91_add_device_usba(struct usba_platform_data *data);
57 
58  /* Compact Flash */
59 struct at91_cf_data {
60 	int	irq_pin;		/* I/O IRQ */
61 	int	det_pin;		/* Card detect */
62 	int	vcc_pin;		/* power switching */
63 	int	rst_pin;		/* card reset */
64 	u8	chipselect;		/* EBI Chip Select number */
65 	u8	flags;
66 #define AT91_CF_TRUE_IDE	0x01
67 #define AT91_IDE_SWAP_A0_A2	0x02
68 };
69 extern void __init at91_add_device_cf(struct at91_cf_data *data);
70 
71  /* MMC / SD */
72   /* at91_mci platform config */
73 struct at91_mmc_data {
74 	int		det_pin;	/* card detect IRQ */
75 	unsigned	slot_b:1;	/* uses Slot B */
76 	unsigned	wire4:1;	/* (SD) supports DAT0..DAT3 */
77 	int		wp_pin;		/* (SD) writeprotect detect */
78 	int		vcc_pin;	/* power switching (high == on) */
79 };
80 extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
81 
82   /* atmel-mci platform config */
83 extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);
84 
85 extern void __init at91_add_device_eth(struct macb_platform_data *data);
86 
87  /* USB Host */
88 struct at91_usbh_data {
89 	u8		ports;		/* number of ports on root hub */
90 	int		vbus_pin[2];	/* port power-control pin */
91 	u8              vbus_pin_active_low[2];
92 	u8              overcurrent_supported;
93 	int             overcurrent_pin[2];
94 	u8              overcurrent_status[2];
95 	u8              overcurrent_changed[2];
96 };
97 extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
98 extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
99 extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);
100 
101  /* NAND / SmartMedia */
102 struct atmel_nand_data {
103 	int		enable_pin;	/* chip enable */
104 	int		det_pin;	/* card detect */
105 	int		rdy_pin;	/* ready/busy */
106 	u8              rdy_pin_active_low;     /* rdy_pin value is inverted */
107 	u8		ale;		/* address line number connected to ALE */
108 	u8		cle;		/* address line number connected to CLE */
109 	u8		bus_width_16;	/* buswidth is 16 bit */
110 	struct mtd_partition *parts;
111 	unsigned int	num_parts;
112 };
113 extern void __init at91_add_device_nand(struct atmel_nand_data *data);
114 
115  /* I2C*/
116 #if defined(CONFIG_ARCH_AT91SAM9G45)
117 extern void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices);
118 #else
119 extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices);
120 #endif
121 
122  /* SPI */
123 extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
124 
125  /* Serial */
126 #define ATMEL_UART_CTS	0x01
127 #define ATMEL_UART_RTS	0x02
128 #define ATMEL_UART_DSR	0x04
129 #define ATMEL_UART_DTR	0x08
130 #define ATMEL_UART_DCD	0x10
131 #define ATMEL_UART_RI	0x20
132 
133 extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);
134 extern void __init at91_set_serial_console(unsigned portnr);
135 
136 extern struct platform_device *atmel_default_console_device;
137 
138 struct atmel_uart_data {
139 	int			num;		/* port num */
140 	short			use_dma_tx;	/* use transmit DMA? */
141 	short			use_dma_rx;	/* use receive DMA? */
142 	void __iomem		*regs;		/* virt. base address, if any */
143 	struct serial_rs485	rs485;		/* rs485 settings */
144 };
145 extern void __init at91_add_device_serial(void);
146 
147 /*
148  * PWM
149  */
150 #define AT91_PWM0	0
151 #define AT91_PWM1	1
152 #define AT91_PWM2	2
153 #define AT91_PWM3	3
154 
155 extern void __init at91_add_device_pwm(u32 mask);
156 
157 /*
158  * SSC -- accessed through ssc_request(id).  Drivers don't bind to SSC
159  * platform devices.  Their SSC ID is part of their configuration data,
160  * along with information about which SSC signals they should use.
161  */
162 #define ATMEL_SSC_TK	0x01
163 #define ATMEL_SSC_TF	0x02
164 #define ATMEL_SSC_TD	0x04
165 #define ATMEL_SSC_TX	(ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
166 
167 #define ATMEL_SSC_RK	0x10
168 #define ATMEL_SSC_RF	0x20
169 #define ATMEL_SSC_RD	0x40
170 #define ATMEL_SSC_RX	(ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
171 
172 extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
173 
174  /* LCD Controller */
175 struct atmel_lcdfb_info;
176 extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
177 
178  /* AC97 */
179 extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
180 
181  /* ISI */
182 extern void __init at91_add_device_isi(void);
183 
184  /* Touchscreen Controller */
185 struct at91_tsadcc_data {
186 	unsigned int    adc_clock;
187 	u8		pendet_debounce;
188 	u8		ts_sample_hold_time;
189 };
190 extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);
191 
192 /* CAN */
193 struct at91_can_data {
194 	void (*transceiver_switch)(int on);
195 };
196 extern void __init at91_add_device_can(struct at91_can_data *data);
197 
198  /* LEDs */
199 extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
200 extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
201 extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);
202 
203 /* FIXME: this needs a better location, but gets stuff building again */
204 extern int at91_suspend_entering_slow_clock(void);
205 
206 #endif
207