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at91_set_serial_console is used to define the default console of linux. This is already manage by the cmdline. And if the boot loader can not be modified you can still set it by enabling the CONFIG_CMDLINE_EXTEND option. And then the command-line arguments provided by the boot loader will be appended to the default kernel command string. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
198 lines
6.3 KiB
C
198 lines
6.3 KiB
C
/*
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* arch/arm/mach-at91/include/mach/board.h
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*
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* Copyright (C) 2005 HP Labs
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* These are data structures found in platform_device.dev.platform_data,
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* and describing board-specific data needed by drivers. For example,
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* which pin is used for a given GPIO role.
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*
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* In 2.6, drivers should strongly avoid board-specific knowledge so
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* that supporting new boards normally won't require driver patches.
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* Most board-specific knowledge should be in arch/.../board-*.c files.
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*/
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#ifndef __ASM_ARCH_BOARD_H
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#define __ASM_ARCH_BOARD_H
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#include <linux/mtd/partitions.h>
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#include <linux/device.h>
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#include <linux/i2c.h>
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#include <linux/leds.h>
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#include <linux/spi/spi.h>
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#include <linux/usb/atmel_usba_udc.h>
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#include <linux/atmel-mci.h>
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#include <sound/atmel-ac97c.h>
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#include <linux/serial.h>
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#include <linux/platform_data/macb.h>
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#include <linux/platform_data/atmel.h>
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/* USB Device */
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struct at91_udc_data {
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int vbus_pin; /* high == host powering us */
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u8 vbus_active_low; /* vbus polarity */
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u8 vbus_polled; /* Use polling, not interrupt */
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int pullup_pin; /* active == D+ pulled up */
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u8 pullup_active_low; /* true == pullup_pin is active low */
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};
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extern void __init at91_add_device_udc(struct at91_udc_data *data);
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/* USB High Speed Device */
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extern void __init at91_add_device_usba(struct usba_platform_data *data);
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/* Compact Flash */
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struct at91_cf_data {
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int irq_pin; /* I/O IRQ */
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int det_pin; /* Card detect */
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int vcc_pin; /* power switching */
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int rst_pin; /* card reset */
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u8 chipselect; /* EBI Chip Select number */
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u8 flags;
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#define AT91_CF_TRUE_IDE 0x01
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#define AT91_IDE_SWAP_A0_A2 0x02
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};
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extern void __init at91_add_device_cf(struct at91_cf_data *data);
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/* MMC / SD */
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/* at91_mci platform config */
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struct at91_mmc_data {
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int det_pin; /* card detect IRQ */
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unsigned slot_b:1; /* uses Slot B */
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unsigned wire4:1; /* (SD) supports DAT0..DAT3 */
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int wp_pin; /* (SD) writeprotect detect */
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int vcc_pin; /* power switching (high == on) */
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};
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extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
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/* atmel-mci platform config */
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extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);
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extern void __init at91_add_device_eth(struct macb_platform_data *data);
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/* USB Host */
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#define AT91_MAX_USBH_PORTS 3
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struct at91_usbh_data {
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int vbus_pin[AT91_MAX_USBH_PORTS]; /* port power-control pin */
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int overcurrent_pin[AT91_MAX_USBH_PORTS];
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u8 ports; /* number of ports on root hub */
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u8 overcurrent_supported;
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u8 vbus_pin_active_low[AT91_MAX_USBH_PORTS];
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u8 overcurrent_status[AT91_MAX_USBH_PORTS];
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u8 overcurrent_changed[AT91_MAX_USBH_PORTS];
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};
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extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
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extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
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extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);
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extern void __init at91_add_device_nand(struct atmel_nand_data *data);
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/* I2C*/
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#if defined(CONFIG_ARCH_AT91SAM9G45)
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extern void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices);
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#else
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extern void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices);
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#endif
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/* SPI */
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extern void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices);
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/* Serial */
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#define ATMEL_UART_CTS 0x01
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#define ATMEL_UART_RTS 0x02
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#define ATMEL_UART_DSR 0x04
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#define ATMEL_UART_DTR 0x08
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#define ATMEL_UART_DCD 0x10
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#define ATMEL_UART_RI 0x20
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extern void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins);
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extern struct platform_device *atmel_default_console_device;
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struct atmel_uart_data {
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int num; /* port num */
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short use_dma_tx; /* use transmit DMA? */
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short use_dma_rx; /* use receive DMA? */
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void __iomem *regs; /* virt. base address, if any */
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struct serial_rs485 rs485; /* rs485 settings */
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};
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extern void __init at91_add_device_serial(void);
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/*
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* PWM
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*/
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#define AT91_PWM0 0
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#define AT91_PWM1 1
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#define AT91_PWM2 2
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#define AT91_PWM3 3
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extern void __init at91_add_device_pwm(u32 mask);
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/*
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* SSC -- accessed through ssc_request(id). Drivers don't bind to SSC
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* platform devices. Their SSC ID is part of their configuration data,
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* along with information about which SSC signals they should use.
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*/
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#define ATMEL_SSC_TK 0x01
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#define ATMEL_SSC_TF 0x02
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#define ATMEL_SSC_TD 0x04
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#define ATMEL_SSC_TX (ATMEL_SSC_TK | ATMEL_SSC_TF | ATMEL_SSC_TD)
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#define ATMEL_SSC_RK 0x10
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#define ATMEL_SSC_RF 0x20
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#define ATMEL_SSC_RD 0x40
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#define ATMEL_SSC_RX (ATMEL_SSC_RK | ATMEL_SSC_RF | ATMEL_SSC_RD)
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extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
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/* LCD Controller */
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struct atmel_lcdfb_info;
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extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
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/* AC97 */
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extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
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/* ISI */
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struct isi_platform_data;
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extern void __init at91_add_device_isi(struct isi_platform_data *data,
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bool use_pck_as_mck);
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/* Touchscreen Controller */
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struct at91_tsadcc_data {
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unsigned int adc_clock;
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u8 pendet_debounce;
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u8 ts_sample_hold_time;
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};
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extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);
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/* CAN */
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struct at91_can_data {
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void (*transceiver_switch)(int on);
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};
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extern void __init at91_add_device_can(struct at91_can_data *data);
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/* LEDs */
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extern void __init at91_init_leds(u8 cpu_led, u8 timer_led);
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extern void __init at91_gpio_leds(struct gpio_led *leds, int nr);
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extern void __init at91_pwm_leds(struct gpio_led *leds, int nr);
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/* FIXME: this needs a better location, but gets stuff building again */
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extern int at91_suspend_entering_slow_clock(void);
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#endif
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