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/*
* Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
* taskit GmbH
*
* 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
*/
/*
* copied and adjusted from board-stamp9g20.c
* by Peter Gsellmann <pgsellmann@portner-elektronik.at>
*/
#include <linux/mm.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/w1-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/board.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
#include "generic.h"
static void __init pcontrol_g20_map_io(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91sam9260_initialize(18432000);
/* DGBU on ttyS0. (Rx, Tx) only TTL -> JTAG connector X7 17,19 ) */
at91_register_uart(0, 0, 0);
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback A2 */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
| ATMEL_UART_RTS);
/* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485 X5 */
at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
| ATMEL_UART_RTS);
/* USART2 on ttyS3. (Rx, Tx) 9bit-Bus Multidrop-mode X4 */
at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
/* set serial console to ttyS0 (ie, DBGU) */
at91_set_serial_console(0);
}
static void __init init_irq(void)
{
at91sam9260_init_interrupts(NULL);
}
/*
* NAND flash 512MiB 1,8V 8-bit, sector size 128 KiB
*/
static struct atmel_nand_data __initdata nand_data = {
.ale = 21,
.cle = 22,
.rdy_pin = AT91_PIN_PC13,
.enable_pin = AT91_PIN_PC14,
};
/*
* Bus timings; unit = 7.57ns
*/
static struct sam9_smc_config __initdata 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 struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
.ncs_read_setup = 16,
.nrd_setup = 18,
.ncs_write_setup = 16,
.nwe_setup = 18,
.ncs_read_pulse = 63,
.nrd_pulse = 55,
.ncs_write_pulse = 63,
.nwe_pulse = 55,
.read_cycle = 127,
.write_cycle = 127,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
| AT91_SMC_DBW_8 | AT91_SMC_PS_4
| AT91_SMC_TDFMODE,
.tdf_cycles = 3,
}, {
.ncs_read_setup = 0,
.nrd_setup = 0,
.ncs_write_setup = 0,
.nwe_setup = 1,
.ncs_read_pulse = 8,
.nrd_pulse = 8,
.ncs_write_pulse = 5,
.nwe_pulse = 4,
.read_cycle = 8,
.write_cycle = 7,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
| AT91_SMC_DBW_16 | AT91_SMC_PS_8
| AT91_SMC_TDFMODE,
.tdf_cycles = 1,
} };
static void __init add_device_nand(void)
{
/* configure chip-select 3 (NAND) */
sam9_smc_configure(3, &nand_smc_config);
at91_add_device_nand(&nand_data);
}
static void __init add_device_pcontrol(void)
{
/* configure chip-select 4 (IO compatible to 8051 X4 ) */
sam9_smc_configure(4, &pcontrol_smc_config[0]);
/* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A D4 ) */
sam9_smc_configure(7, &pcontrol_smc_config[1]);
}
/*
* MCI (SD/MMC)
* det_pin, wp_pin and vcc_pin are not connected
*/
#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
static struct mci_platform_data __initdata mmc_data = {
.slot[0] = {
.bus_width = 4,
},
};
#else
static struct at91_mmc_data __initdata mmc_data = {
.wire4 = 1,
};
#endif
/*
* USB Host port
*/
static struct at91_usbh_data __initdata usbh_data = {
.ports = 2,
};
/*
* USB Device port
*/
static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
.vbus_pin = AT91_PIN_PA22, /* Detect +5V bus voltage */
.pullup_pin = AT91_PIN_PA4, /* K-state, active low */
};
/*
* MACB Ethernet device
*/
static struct at91_eth_data __initdata macb_data = {
.phy_irq_pin = AT91_PIN_PA28,
.is_rmii = 1,
};
/*
* I2C devices: eeprom and phy/switch
*/
static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
{ /* D7 address width=2, 8KiB */
I2C_BOARD_INFO("24c64", 0x50)
}, { /* D8 address width=1, 1 byte has 32 bits! */
I2C_BOARD_INFO("lan9303", 0x0a)
}, };
/*
* LEDs
*/
static struct gpio_led pcontrol_g20_leds[] = {
{
.name = "LED1", /* red H5 */
.gpio = AT91_PIN_PB18,
.active_low = 1,
.default_trigger = "none", /* supervisor */
}, {
.name = "LED2", /* yellow H7 */
.gpio = AT91_PIN_PB19,
.active_low = 1,
.default_trigger = "mmc0", /* SD-card activity */
}, {
.name = "LED3", /* green H2 */
.gpio = AT91_PIN_PB20,
.active_low = 1,
.default_trigger = "heartbeat", /* blinky */
}, {
.name = "LED4", /* red H3 */
.gpio = AT91_PIN_PC6,
.active_low = 1,
.default_trigger = "none", /* connection lost */
}, {
.name = "LED5", /* yellow H6 */
.gpio = AT91_PIN_PC7,
.active_low = 1,
.default_trigger = "none", /* unsent data */
}, {
.name = "LED6", /* green H1 */
.gpio = AT91_PIN_PC9,
.active_low = 1,
.default_trigger = "none", /* snafu */
}
};
/*
* SPI devices
*/
static struct spi_board_info pcontrol_g20_spi_devices[] = {
{
.modalias = "spidev", /* HMI port X4 */
.chip_select = 1,
.max_speed_hz = 50 * 1000 * 1000,
.bus_num = 0,
}, {
.modalias = "spidev", /* piggyback A2 */
.chip_select = 0,
.max_speed_hz = 50 * 1000 * 1000,
.bus_num = 1,
},
};
/*
* Dallas 1-Wire DS2431
*/
static struct w1_gpio_platform_data w1_gpio_pdata = {
.pin = AT91_PIN_PA29,
.is_open_drain = 1,
};
static struct platform_device w1_device = {
.name = "w1-gpio",
.id = -1,
.dev.platform_data = &w1_gpio_pdata,
};
static void add_wire1(void)
{
at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
at91_set_multi_drive(w1_gpio_pdata.pin, 1);
platform_device_register(&w1_device);
}
static void __init pcontrol_g20_board_init(void)
{
at91_add_device_serial();
add_device_nand();
#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
at91_add_device_mci(0, &mmc_data);
#else
at91_add_device_mmc(0, &mmc_data);
#endif
at91_add_device_usbh(&usbh_data);
at91_add_device_eth(&macb_data);
at91_add_device_i2c(pcontrol_g20_i2c_devices,
ARRAY_SIZE(pcontrol_g20_i2c_devices));
add_wire1();
add_device_pcontrol();
at91_add_device_spi(pcontrol_g20_spi_devices,
ARRAY_SIZE(pcontrol_g20_spi_devices));
at91_add_device_udc(&pcontrol_g20_udc_data);
at91_gpio_leds(pcontrol_g20_leds,
ARRAY_SIZE(pcontrol_g20_leds));
/* piggyback A2 */
at91_set_gpio_output(AT91_PIN_PB31, 1);
}
MACHINE_START(PCONTROL_G20, "PControl G20")
/* Maintainer: pgsellmann@portner-elektronik.at */
.boot_params = AT91_SDRAM_BASE + 0x100,
.timer = &at91sam926x_timer,
.map_io = pcontrol_g20_map_io,
.init_irq = init_irq,
.init_machine = pcontrol_g20_board_init,
MACHINE_END
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