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linux-next/arch/arm/mach-at91/board-cpu9krea.c
Jean-Christophe PLAGNIOL-VILLARD 71b149b3f7 ARM: at91: do not pin mux the UARTs in init_early 
There is no need to pinmux the UART so early in the kernel.
Move it to the board init.

This will also allow to finally move the gpio driver to platform device/driver.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-04-17 11:04:42 +02:00

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/*
* linux/arch/arm/mach-at91/board-cpu9krea.c
*
* Copyright (C) 2005 SAN People
* Copyright (C) 2006 Atmel
* Copyright (C) 2009 Eric Benard - eric@eukrea.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/gpio.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/mtd/physmap.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/at91sam9260_matrix.h>
#include <mach/at91_matrix.h>
#include "sam9_smc.h"
#include "generic.h"
static void __init cpu9krea_init_early(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91_initialize(18432000);
}
/*
* USB Host port
*/
static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
/*
* USB Device port
*/
static struct at91_udc_data __initdata cpu9krea_udc_data = {
.vbus_pin = AT91_PIN_PC8,
.pullup_pin = -EINVAL, /* pull-up driven by UDC */
};
/*
* MACB Ethernet device
*/
static struct macb_platform_data __initdata cpu9krea_macb_data = {
.phy_irq_pin = -EINVAL,
.is_rmii = 1,
};
/*
* NAND flash
*/
static struct atmel_nand_data __initdata cpu9krea_nand_data = {
.ale = 21,
.cle = 22,
.rdy_pin = AT91_PIN_PC13,
.enable_pin = AT91_PIN_PC14,
.bus_width_16 = 0,
.det_pin = -EINVAL,
.ecc_mode = NAND_ECC_SOFT,
};
#ifdef CONFIG_MACH_CPU9260
static struct sam9_smc_config __initdata cpu9krea_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,
};
#else
static struct sam9_smc_config __initdata cpu9krea_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,
};
#endif
static void __init cpu9krea_add_device_nand(void)
{
sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
at91_add_device_nand(&cpu9krea_nand_data);
}
/*
* NOR flash
*/
static struct physmap_flash_data cpuat9260_nor_data = {
.width = 2,
};
#define NOR_BASE AT91_CHIPSELECT_0
#define NOR_SIZE SZ_64M
static struct resource nor_flash_resources[] = {
{
.start = NOR_BASE,
.end = NOR_BASE + NOR_SIZE - 1,
.flags = IORESOURCE_MEM,
}
};
static struct platform_device cpu9krea_nor_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &cpuat9260_nor_data,
},
.resource = nor_flash_resources,
.num_resources = ARRAY_SIZE(nor_flash_resources),
};
#ifdef CONFIG_MACH_CPU9260
static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 1,
.ncs_write_setup = 0,
.nwe_setup = 1,
.ncs_read_pulse = 10,
.nrd_pulse = 10,
.ncs_write_pulse = 6,
.nwe_pulse = 6,
.read_cycle = 12,
.write_cycle = 8,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
| AT91_SMC_DBW_16,
.tdf_cycles = 2,
};
#else
static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 1,
.ncs_write_setup = 0,
.nwe_setup = 1,
.ncs_read_pulse = 13,
.nrd_pulse = 13,
.ncs_write_pulse = 8,
.nwe_pulse = 8,
.read_cycle = 15,
.write_cycle = 10,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
| AT91_SMC_DBW_16,
.tdf_cycles = 2,
};
#endif
static __init void cpu9krea_add_device_nor(void)
{
unsigned long csa;
csa = at91_matrix_read(AT91_MATRIX_EBICSA);
at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
/* configure chip-select 0 (NOR) */
sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
platform_device_register(&cpu9krea_nor_flash);
}
/*
* LEDs
*/
static struct gpio_led cpu9krea_leds[] = {
{ /* LED1 */
.name = "LED1",
.gpio = AT91_PIN_PC11,
.active_low = 1,
.default_trigger = "timer",
},
{ /* LED2 */
.name = "LED2",
.gpio = AT91_PIN_PC12,
.active_low = 1,
.default_trigger = "heartbeat",
},
{ /* LED3 */
.name = "LED3",
.gpio = AT91_PIN_PC7,
.active_low = 1,
.default_trigger = "none",
},
{ /* LED4 */
.name = "LED4",
.gpio = AT91_PIN_PC9,
.active_low = 1,
.default_trigger = "none",
}
};
static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
{
I2C_BOARD_INFO("rtc-ds1307", 0x68),
.type = "ds1339",
},
};
/*
* GPIO Buttons
*/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button cpu9krea_buttons[] = {
{
.gpio = AT91_PIN_PC3,
.code = BTN_0,
.desc = "BP1",
.active_low = 1,
.wakeup = 1,
},
{
.gpio = AT91_PIN_PB20,
.code = BTN_1,
.desc = "BP2",
.active_low = 1,
.wakeup = 1,
}
};
static struct gpio_keys_platform_data cpu9krea_button_data = {
.buttons = cpu9krea_buttons,
.nbuttons = ARRAY_SIZE(cpu9krea_buttons),
};
static struct platform_device cpu9krea_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &cpu9krea_button_data,
}
};
static void __init cpu9krea_add_device_buttons(void)
{
at91_set_gpio_input(AT91_PIN_PC3, 1); /* BP1 */
at91_set_deglitch(AT91_PIN_PC3, 1);
at91_set_gpio_input(AT91_PIN_PB20, 1); /* BP2 */
at91_set_deglitch(AT91_PIN_PB20, 1);
platform_device_register(&cpu9krea_button_device);
}
#else
static void __init cpu9krea_add_device_buttons(void)
{
}
#endif
/*
* MCI (SD/MMC)
*/
static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
.slot_b = 0,
.wire4 = 1,
.det_pin = AT91_PIN_PA29,
.wp_pin = -EINVAL,
.vcc_pin = -EINVAL,
};
static void __init cpu9krea_board_init(void)
{
/* NOR */
cpu9krea_add_device_nor();
/* Serial */
/* DGBU 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);
/* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
ATMEL_UART_RTS);
/* USART3 on ttyS4. (Rx, Tx) */
at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
/* USART4 on ttyS5. (Rx, Tx) */
at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
/* USART5 on ttyS6. (Rx, Tx) */
at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
at91_add_device_serial();
/* USB Host */
at91_add_device_usbh(&cpu9krea_usbh_data);
/* USB Device */
at91_add_device_udc(&cpu9krea_udc_data);
/* NAND */
cpu9krea_add_device_nand();
/* Ethernet */
at91_add_device_eth(&cpu9krea_macb_data);
/* MMC */
at91_add_device_mmc(0, &cpu9krea_mmc_data);
/* I2C */
at91_add_device_i2c(cpu9krea_i2c_devices,
ARRAY_SIZE(cpu9krea_i2c_devices));
/* LEDs */
at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
/* Push Buttons */
cpu9krea_add_device_buttons();
}
#ifdef CONFIG_MACH_CPU9260
MACHINE_START(CPUAT9260, "Eukrea CPU9260")
#else
MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
#endif
/* Maintainer: Eric Benard - EUKREA Electromatique */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.init_early = cpu9krea_init_early,
.init_irq = at91_init_irq_default,
.init_machine = cpu9krea_board_init,
MACHINE_END
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