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android_kernel_motorola_sm6225/arch/arm/mach-at91/board-usb-a926x.c
Jean-Christophe PLAGNIOL-VILLARD a27fa58117 ARM: at91: drop at91_set_serial_console 
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>
2012-04-17 11:03:46 +02:00

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/*
* linux/arch/arm/mach-at91/board-usb-a926x.c
*
* Copyright (C) 2005 SAN People
* Copyright (C) 2007 Atmel Corporation.
* Copyright (C) 2007 Calao-systems
* Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/gpio_keys.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/spi/mmc_spi.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
#include "sam9_smc.h"
#include "generic.h"
static void __init ek_init_early(void)
{
/* Initialize processor: 12.00 MHz crystal */
at91_initialize(12000000);
/* DBGU on ttyS0. (Rx & Tx only) */
at91_register_uart(0, 0, 0);
}
/*
* USB Host port
*/
static struct at91_usbh_data __initdata ek_usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
/*
* USB Device port
*/
static struct at91_udc_data __initdata ek_udc_data = {
.vbus_pin = AT91_PIN_PB11,
.pullup_pin = -EINVAL, /* pull-up driven by UDC */
};
static void __init ek_add_device_udc(void)
{
if (machine_is_usb_a9260() || machine_is_usb_a9g20())
ek_udc_data.vbus_pin = AT91_PIN_PC5;
at91_add_device_udc(&ek_udc_data);
}
#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
#define MMC_SPI_CARD_DETECT_INT AT91_PIN_PC4
static int at91_mmc_spi_init(struct device *dev,
irqreturn_t (*detect_int)(int, void *), void *data)
{
/* Configure Interrupt pin as input, no pull-up */
at91_set_gpio_input(MMC_SPI_CARD_DETECT_INT, 0);
return request_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), detect_int,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"mmc-spi-detect", data);
}
static void at91_mmc_spi_exit(struct device *dev, void *data)
{
free_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), data);
}
static struct mmc_spi_platform_data at91_mmc_spi_pdata = {
.init = at91_mmc_spi_init,
.exit = at91_mmc_spi_exit,
.detect_delay = 100, /* msecs */
};
#endif
/*
* SPI devices.
*/
static struct spi_board_info usb_a9263_spi_devices[] = {
#if !defined(CONFIG_MMC_AT91)
{ /* DataFlash chip */
.modalias = "mtd_dataflash",
.chip_select = 0,
.max_speed_hz = 15 * 1000 * 1000,
.bus_num = 0,
}
#endif
};
static struct spi_board_info usb_a9g20_spi_devices[] = {
#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
{
.modalias = "mmc_spi",
.max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
.bus_num = 1,
.chip_select = 0,
.platform_data = &at91_mmc_spi_pdata,
.mode = SPI_MODE_3,
},
#endif
};
static void __init ek_add_device_spi(void)
{
if (machine_is_usb_a9263())
at91_add_device_spi(usb_a9263_spi_devices, ARRAY_SIZE(usb_a9263_spi_devices));
else if (machine_is_usb_a9g20())
at91_add_device_spi(usb_a9g20_spi_devices, ARRAY_SIZE(usb_a9g20_spi_devices));
}
/*
* MACB Ethernet device
*/
static struct macb_platform_data __initdata ek_macb_data = {
.phy_irq_pin = AT91_PIN_PE31,
.is_rmii = 1,
};
static void __init ek_add_device_eth(void)
{
if (machine_is_usb_a9260() || machine_is_usb_a9g20())
ek_macb_data.phy_irq_pin = AT91_PIN_PA31;
at91_add_device_eth(&ek_macb_data);
}
/*
* NAND flash
*/
static struct mtd_partition __initdata ek_nand_partition[] = {
{
.name = "barebox",
.offset = 0,
.size = 3 * SZ_128K,
}, {
.name = "bareboxenv",
.offset = MTDPART_OFS_NXTBLK,
.size = SZ_128K,
}, {
.name = "bareboxenv2",
.offset = MTDPART_OFS_NXTBLK,
.size = SZ_128K,
}, {
.name = "kernel",
.offset = MTDPART_OFS_NXTBLK,
.size = 4 * SZ_1M,
}, {
.name = "rootfs",
.offset = MTDPART_OFS_NXTBLK,
.size = 120 * SZ_1M,
}, {
.name = "data",
.offset = MTDPART_OFS_NXTBLK,
.size = MTDPART_SIZ_FULL,
}
};
static struct atmel_nand_data __initdata ek_nand_data = {
.ale = 21,
.cle = 22,
.det_pin = -EINVAL,
.rdy_pin = AT91_PIN_PA22,
.enable_pin = AT91_PIN_PD15,
.ecc_mode = NAND_ECC_SOFT,
.on_flash_bbt = 1,
.parts = ek_nand_partition,
.num_parts = ARRAY_SIZE(ek_nand_partition),
};
static struct sam9_smc_config __initdata usb_a9260_nand_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 1,
.ncs_write_setup = 0,
.nwe_setup = 1,
.ncs_read_pulse = 3,
.nrd_pulse = 3,
.ncs_write_pulse = 3,
.nwe_pulse = 3,
.read_cycle = 5,
.write_cycle = 5,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
.tdf_cycles = 2,
};
static struct sam9_smc_config __initdata usb_a9g20_nand_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 2,
.ncs_write_setup = 0,
.nwe_setup = 2,
.ncs_read_pulse = 4,
.nrd_pulse = 4,
.ncs_write_pulse = 4,
.nwe_pulse = 4,
.read_cycle = 7,
.write_cycle = 7,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
.tdf_cycles = 3,
};
static void __init ek_add_device_nand(void)
{
if (machine_is_usb_a9260() || machine_is_usb_a9g20()) {
ek_nand_data.rdy_pin = AT91_PIN_PC13;
ek_nand_data.enable_pin = AT91_PIN_PC14;
}
/* configure chip-select 3 (NAND) */
if (machine_is_usb_a9g20())
sam9_smc_configure(0, 3, &usb_a9g20_nand_smc_config);
else
sam9_smc_configure(0, 3, &usb_a9260_nand_smc_config);
at91_add_device_nand(&ek_nand_data);
}
/*
* GPIO Buttons
*/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
{ /* USER PUSH BUTTON */
.code = KEY_ENTER,
.gpio = AT91_PIN_PB10,
.active_low = 1,
.desc = "user_pb",
.wakeup = 1,
}
};
static struct gpio_keys_platform_data ek_button_data = {
.buttons = ek_buttons,
.nbuttons = ARRAY_SIZE(ek_buttons),
};
static struct platform_device ek_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &ek_button_data,
}
};
static void __init ek_add_device_buttons(void)
{
at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
at91_set_deglitch(AT91_PIN_PB10, 1);
platform_device_register(&ek_button_device);
}
#else
static void __init ek_add_device_buttons(void) {}
#endif
/*
* LEDs
*/
static struct gpio_led ek_leds[] = {
{ /* user_led (green) */
.name = "user_led",
.gpio = AT91_PIN_PB21,
.active_low = 1,
.default_trigger = "heartbeat",
}
};
static struct i2c_board_info __initdata ek_i2c_devices[] = {
{
I2C_BOARD_INFO("rv3029c2", 0x56),
},
};
static void __init ek_add_device_leds(void)
{
if (machine_is_usb_a9260() || machine_is_usb_a9g20())
ek_leds[0].active_low = 0;
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
}
static void __init ek_board_init(void)
{
/* Serial */
at91_add_device_serial();
/* USB Host */
at91_add_device_usbh(&ek_usbh_data);
/* USB Device */
ek_add_device_udc();
/* SPI */
ek_add_device_spi();
/* Ethernet */
ek_add_device_eth();
/* NAND */
ek_add_device_nand();
/* Push Buttons */
ek_add_device_buttons();
/* LEDs */
ek_add_device_leds();
if (machine_is_usb_a9g20()) {
/* I2C */
at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
} else {
/* I2C */
at91_add_device_i2c(NULL, 0);
/* shutdown controller, wakeup button (5 msec low) */
at91_shdwc_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10)
| AT91_SHDW_WKMODE0_LOW
| AT91_SHDW_RTTWKEN);
}
}
MACHINE_START(USB_A9263, "CALAO USB_A9263")
/* Maintainer: calao-systems */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,
MACHINE_END
MACHINE_START(USB_A9260, "CALAO USB_A9260")
/* Maintainer: calao-systems */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,
MACHINE_END
MACHINE_START(USB_A9G20, "CALAO USB_A92G0")
/* Maintainer: Jean-Christophe PLAGNIOL-VILLARD */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,
MACHINE_END
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