4f37940d64
DBGU means Debug Unit, was refered as "DGBU" in some files. Fixed to "DBGU". Signed-off-by: Samuel R. C. Vale <srcvale@holoscopio.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
318 lines
6.9 KiB
C
318 lines
6.9 KiB
C
/*
|
|
* Copyright (C) 2005 SAN People
|
|
* Copyright (C) 2008 Atmel
|
|
*
|
|
* 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/spi/at73c213.h>
|
|
#include <linux/gpio_keys.h>
|
|
#include <linux/input.h>
|
|
#include <linux/clk.h>
|
|
|
|
#include <mach/hardware.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/board.h>
|
|
#include <mach/gpio.h>
|
|
#include <mach/at91sam9_smc.h>
|
|
|
|
#include "sam9_smc.h"
|
|
#include "generic.h"
|
|
|
|
|
|
static void __init ek_map_io(void)
|
|
{
|
|
/* Initialize processor: 18.432 MHz crystal */
|
|
at91sam9260_initialize(18432000);
|
|
|
|
/* DBGU on ttyS0. (Rx & Tx only) */
|
|
at91_register_uart(0, 0, 0);
|
|
|
|
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
|
|
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
|
|
| ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
|
|
| ATMEL_UART_RI);
|
|
|
|
/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
|
|
at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
|
|
|
|
/* set serial console to ttyS0 (ie, DBGU) */
|
|
at91_set_serial_console(0);
|
|
}
|
|
|
|
static void __init ek_init_irq(void)
|
|
{
|
|
at91sam9260_init_interrupts(NULL);
|
|
}
|
|
|
|
|
|
/*
|
|
* USB Host port
|
|
*/
|
|
static struct at91_usbh_data __initdata ek_usbh_data = {
|
|
.ports = 2,
|
|
};
|
|
|
|
/*
|
|
* USB Device port
|
|
*/
|
|
static struct at91_udc_data __initdata ek_udc_data = {
|
|
.vbus_pin = AT91_PIN_PC5,
|
|
.pullup_pin = 0, /* pull-up driven by UDC */
|
|
};
|
|
|
|
|
|
/*
|
|
* SPI devices.
|
|
*/
|
|
static struct spi_board_info ek_spi_devices[] = {
|
|
#if !defined(CONFIG_MMC_AT91)
|
|
{ /* DataFlash chip */
|
|
.modalias = "mtd_dataflash",
|
|
.chip_select = 1,
|
|
.max_speed_hz = 15 * 1000 * 1000,
|
|
.bus_num = 0,
|
|
},
|
|
#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
|
|
{ /* DataFlash card */
|
|
.modalias = "mtd_dataflash",
|
|
.chip_select = 0,
|
|
.max_speed_hz = 15 * 1000 * 1000,
|
|
.bus_num = 0,
|
|
},
|
|
#endif
|
|
#endif
|
|
};
|
|
|
|
|
|
/*
|
|
* MACB Ethernet device
|
|
*/
|
|
static struct at91_eth_data __initdata ek_macb_data = {
|
|
.phy_irq_pin = AT91_PIN_PA7,
|
|
.is_rmii = 1,
|
|
};
|
|
|
|
|
|
/*
|
|
* NAND flash
|
|
*/
|
|
static struct mtd_partition __initdata ek_nand_partition[] = {
|
|
{
|
|
.name = "Bootstrap",
|
|
.offset = 0,
|
|
.size = 4 * SZ_1M,
|
|
},
|
|
{
|
|
.name = "Partition 1",
|
|
.offset = MTDPART_OFS_NXTBLK,
|
|
.size = 60 * SZ_1M,
|
|
},
|
|
{
|
|
.name = "Partition 2",
|
|
.offset = MTDPART_OFS_NXTBLK,
|
|
.size = MTDPART_SIZ_FULL,
|
|
},
|
|
};
|
|
|
|
static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
|
|
{
|
|
*num_partitions = ARRAY_SIZE(ek_nand_partition);
|
|
return ek_nand_partition;
|
|
}
|
|
|
|
/* det_pin is not connected */
|
|
static struct atmel_nand_data __initdata ek_nand_data = {
|
|
.ale = 21,
|
|
.cle = 22,
|
|
.rdy_pin = AT91_PIN_PC13,
|
|
.enable_pin = AT91_PIN_PC14,
|
|
.partition_info = nand_partitions,
|
|
#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
|
|
.bus_width_16 = 1,
|
|
#else
|
|
.bus_width_16 = 0,
|
|
#endif
|
|
};
|
|
|
|
static struct sam9_smc_config __initdata ek_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,
|
|
.tdf_cycles = 3,
|
|
};
|
|
|
|
static void __init ek_add_device_nand(void)
|
|
{
|
|
/* setup bus-width (8 or 16) */
|
|
if (ek_nand_data.bus_width_16)
|
|
ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
|
|
else
|
|
ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
|
|
|
|
/* configure chip-select 3 (NAND) */
|
|
sam9_smc_configure(3, &ek_nand_smc_config);
|
|
|
|
at91_add_device_nand(&ek_nand_data);
|
|
}
|
|
|
|
|
|
/*
|
|
* MCI (SD/MMC)
|
|
* det_pin, wp_pin and vcc_pin are not connected
|
|
*/
|
|
static struct at91_mmc_data __initdata ek_mmc_data = {
|
|
.slot_b = 1,
|
|
.wire4 = 1,
|
|
};
|
|
|
|
|
|
/*
|
|
* LEDs
|
|
*/
|
|
static struct gpio_led ek_leds[] = {
|
|
{ /* "bottom" led, green, userled1 to be defined */
|
|
.name = "ds5",
|
|
.gpio = AT91_PIN_PA6,
|
|
.active_low = 1,
|
|
.default_trigger = "none",
|
|
},
|
|
{ /* "power" led, yellow */
|
|
.name = "ds1",
|
|
.gpio = AT91_PIN_PA9,
|
|
.default_trigger = "heartbeat",
|
|
}
|
|
};
|
|
|
|
|
|
/*
|
|
* GPIO Buttons
|
|
*/
|
|
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
|
|
static struct gpio_keys_button ek_buttons[] = {
|
|
{
|
|
.gpio = AT91_PIN_PA30,
|
|
.code = BTN_3,
|
|
.desc = "Button 3",
|
|
.active_low = 1,
|
|
.wakeup = 1,
|
|
},
|
|
{
|
|
.gpio = AT91_PIN_PA31,
|
|
.code = BTN_4,
|
|
.desc = "Button 4",
|
|
.active_low = 1,
|
|
.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_input(AT91_PIN_PA30, 1); /* btn3 */
|
|
at91_set_deglitch(AT91_PIN_PA30, 1);
|
|
at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
|
|
at91_set_deglitch(AT91_PIN_PA31, 1);
|
|
|
|
platform_device_register(&ek_button_device);
|
|
}
|
|
#else
|
|
static void __init ek_add_device_buttons(void) {}
|
|
#endif
|
|
|
|
|
|
static struct i2c_board_info __initdata ek_i2c_devices[] = {
|
|
{
|
|
I2C_BOARD_INFO("24c512", 0x50),
|
|
I2C_BOARD_INFO("wm8731", 0x1b),
|
|
},
|
|
};
|
|
|
|
|
|
static void __init ek_board_init(void)
|
|
{
|
|
/* Serial */
|
|
at91_add_device_serial();
|
|
/* USB Host */
|
|
at91_add_device_usbh(&ek_usbh_data);
|
|
/* USB Device */
|
|
at91_add_device_udc(&ek_udc_data);
|
|
/* SPI */
|
|
at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
|
|
/* NAND */
|
|
ek_add_device_nand();
|
|
/* Ethernet */
|
|
at91_add_device_eth(&ek_macb_data);
|
|
/* MMC */
|
|
at91_add_device_mmc(0, &ek_mmc_data);
|
|
/* I2C */
|
|
at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
|
|
/* LEDs */
|
|
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
|
|
/* Push Buttons */
|
|
ek_add_device_buttons();
|
|
/* PCK0 provides MCLK to the WM8731 */
|
|
at91_set_B_periph(AT91_PIN_PC1, 0);
|
|
/* SSC (for WM8731) */
|
|
at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
|
|
}
|
|
|
|
MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
|
|
/* Maintainer: Atmel */
|
|
.phys_io = AT91_BASE_SYS,
|
|
.io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
|
|
.boot_params = AT91_SDRAM_BASE + 0x100,
|
|
.timer = &at91sam926x_timer,
|
|
.map_io = ek_map_io,
|
|
.init_irq = ek_init_irq,
|
|
.init_machine = ek_board_init,
|
|
MACHINE_END
|