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ARM: 6092/1: atmel_serial: support for RS485 communications
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73a59c1c 1/*
a09e64fb 2 * arch/arm/mach-at91/include/mach/board.h
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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,
d254c8f7 23 * and describing board-specific data needed by drivers. For example,
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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
3267c077 34#include <linux/mtd/partitions.h>
82dc0772 35#include <linux/device.h>
f230d3f5 36#include <linux/i2c.h>
a04ff1af 37#include <linux/leds.h>
82dc0772 38#include <linux/spi/spi.h>
53d71680 39#include <linux/usb/atmel_usba_udc.h>
864f38eb 40#include <linux/atmel-mci.h>
d656f07a 41#include <sound/atmel-ac97c.h>
e8faff73 42#include <linux/serial.h>
3267c077 43
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44 /* USB Device */
45struct at91_udc_data {
46 u8 vbus_pin; /* high == host powering us */
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47 u8 pullup_pin; /* active == D+ pulled up */
48 u8 pullup_active_low; /* true == pullup_pin is active low */
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49};
50extern void __init at91_add_device_udc(struct at91_udc_data *data);
51
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52 /* USB High Speed Device */
53extern void __init at91_add_device_usba(struct usba_platform_data *data);
54
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55 /* Compact Flash */
56struct at91_cf_data {
57 u8 irq_pin; /* I/O IRQ */
58 u8 det_pin; /* Card detect */
59 u8 vcc_pin; /* power switching */
60 u8 rst_pin; /* card reset */
c019d49b 61 u8 chipselect; /* EBI Chip Select number */
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62 u8 flags;
63#define AT91_CF_TRUE_IDE 0x01
64#define AT91_IDE_SWAP_A0_A2 0x02
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65};
66extern void __init at91_add_device_cf(struct at91_cf_data *data);
67
68 /* MMC / SD */
864f38eb 69 /* at91_mci platform config */
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70struct at91_mmc_data {
71 u8 det_pin; /* card detect IRQ */
c019d49b 72 unsigned slot_b:1; /* uses Slot B */
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73 unsigned wire4:1; /* (SD) supports DAT0..DAT3 */
74 u8 wp_pin; /* (SD) writeprotect detect */
75 u8 vcc_pin; /* power switching (high == on) */
76};
d0760b3b 77extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
73a59c1c 78
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79 /* atmel-mci platform config */
80extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);
81
7776a94c 82 /* Ethernet (EMAC & MACB) */
73a59c1c 83struct at91_eth_data {
6c36a707 84 u32 phy_mask;
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85 u8 phy_irq_pin; /* PHY IRQ */
86 u8 is_rmii; /* using RMII interface? */
87};
88extern void __init at91_add_device_eth(struct at91_eth_data *data);
89
789b23bc 90#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91SAM9G20) || defined(CONFIG_ARCH_AT91CAP9) \
5e38efae 91 || defined(CONFIG_ARCH_AT91SAM9G45) || defined(CONFIG_ARCH_AT572D940HF)
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92#define eth_platform_data at91_eth_data
93#endif
94
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95 /* USB Host */
96struct at91_usbh_data {
97 u8 ports; /* number of ports on root hub */
d0176f61 98 u8 vbus_pin[2]; /* port power-control pin */
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99};
100extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
789b23bc 101extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
f51f78c0 102extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);
73a59c1c 103
3267c077 104 /* NAND / SmartMedia */
3c3796cc 105struct atmel_nand_data {
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106 u8 enable_pin; /* chip enable */
107 u8 det_pin; /* card detect */
108 u8 rdy_pin; /* ready/busy */
744f6592 109 u8 rdy_pin_active_low; /* rdy_pin value is inverted */
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110 u8 ale; /* address line number connected to ALE */
111 u8 cle; /* address line number connected to CLE */
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112 u8 bus_width_16; /* buswidth is 16 bit */
113 struct mtd_partition* (*partition_info)(int, int*);
3267c077 114};
3c3796cc 115extern void __init at91_add_device_nand(struct atmel_nand_data *data);
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116
117 /* I2C*/
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118#if defined(CONFIG_ARCH_AT91SAM9G45)
119extern void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices);
120#else
f230d3f5 121extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices);
789b23bc 122#endif
3267c077 123
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124 /* SPI */
125extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
126
127 /* Serial */
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128#define ATMEL_UART_CTS 0x01
129#define ATMEL_UART_RTS 0x02
130#define ATMEL_UART_DSR 0x04
131#define ATMEL_UART_DTR 0x08
132#define ATMEL_UART_DCD 0x10
133#define ATMEL_UART_RI 0x20
134
135extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);
136extern void __init at91_set_serial_console(unsigned portnr);
137
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138struct at91_uart_config {
139 unsigned short console_tty; /* tty number of serial console */
140 unsigned short nr_tty; /* number of serial tty's */
141 short tty_map[]; /* map UART to tty number */
142};
73e2798b 143extern struct platform_device *atmel_default_console_device;
c8f385a6 144extern void __init __deprecated at91_init_serial(struct at91_uart_config *config);
82dc0772 145
73e2798b 146struct atmel_uart_data {
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147 short use_dma_tx; /* use transmit DMA? */
148 short use_dma_rx; /* use receive DMA? */
149 void __iomem *regs; /* virt. base address, if any */
150 struct serial_rs485 rs485; /* rs485 settings */
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151};
152extern void __init at91_add_device_serial(void);
3267c077 153
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154/*
155 * PWM
156 */
157#define AT91_PWM0 0
158#define AT91_PWM1 1
159#define AT91_PWM2 2
160#define AT91_PWM3 3
161
162extern void __init at91_add_device_pwm(u32 mask);
163
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164/*
165 * SSC -- accessed through ssc_request(id). Drivers don't bind to SSC
166 * platform devices. Their SSC ID is part of their configuration data,
167 * along with information about which SSC signals they should use.
168 */
169#define ATMEL_SSC_TK 0x01
170#define ATMEL_SSC_TF 0x02
171#define ATMEL_SSC_TD 0x04
172#define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
173
174#define ATMEL_SSC_RK 0x10
175#define ATMEL_SSC_RF 0x20
176#define ATMEL_SSC_RD 0x40
177#define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
178
179extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
180
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181 /* LCD Controller */
182struct atmel_lcdfb_info;
183extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
184
185 /* AC97 */
d656f07a 186extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
7776a94c 187
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188 /* ISI */
189extern void __init at91_add_device_isi(void);
190
f7647e63 191 /* Touchscreen Controller */
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192struct at91_tsadcc_data {
193 unsigned int adc_clock;
194 u8 pendet_debounce;
195 u8 ts_sample_hold_time;
196};
197extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);
f7647e63 198
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199/* CAN */
200struct at91_can_data {
201 void (*transceiver_switch)(int on);
202};
203extern void __init at91_add_device_can(struct at91_can_data *data);
204
cc2832a1 205 /* LEDs */
cc2832a1 206extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
a04ff1af 207extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
a7307bf2 208extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);
cc2832a1 209
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210 /* AT572D940HF DSP */
211extern void __init at91_add_device_mAgic(void);
212
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213/* FIXME: this needs a better location, but gets stuff building again */
214extern int at91_suspend_entering_slow_clock(void);
215
73a59c1c 216#endif