245 lines
5.9 KiB
C
245 lines
5.9 KiB
C
|
/*
|
||
|
|
* Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
|
||
|
|
* Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
|
||
|
|
*
|
||
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston,
|
||
|
|
* MA 02110-1301, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/i2c.h>
|
||
|
|
#include <linux/i2c/at24.h>
|
||
|
|
#include <linux/dma-mapping.h>
|
||
|
|
#include <linux/spi/spi.h>
|
||
|
|
#include <linux/spi/eeprom.h>
|
||
|
|
#include <linux/irq.h>
|
||
|
|
#include <linux/gpio.h>
|
||
|
|
|
||
|
|
#include <asm/mach/arch.h>
|
||
|
|
#include <asm/mach-types.h>
|
||
|
|
#include <mach/common.h>
|
||
|
|
#include <mach/hardware.h>
|
||
|
|
#include <mach/iomux.h>
|
||
|
|
#include <mach/i2c.h>
|
||
|
|
#include <asm/mach/time.h>
|
||
|
|
#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
|
||
|
|
#include <mach/spi.h>
|
||
|
|
#endif
|
||
|
|
#include <mach/imx-uart.h>
|
||
|
|
#include <mach/mxc_nand.h>
|
||
|
|
#include <mach/irqs.h>
|
||
|
|
#include <mach/mmc.h>
|
||
|
|
|
||
|
|
#include "devices.h"
|
||
|
|
|
||
|
|
static int pca100_pins[] = {
|
||
|
|
/* UART1 */
|
||
|
|
PE12_PF_UART1_TXD,
|
||
|
|
PE13_PF_UART1_RXD,
|
||
|
|
PE14_PF_UART1_CTS,
|
||
|
|
PE15_PF_UART1_RTS,
|
||
|
|
/* SDHC */
|
||
|
|
PB4_PF_SD2_D0,
|
||
|
|
PB5_PF_SD2_D1,
|
||
|
|
PB6_PF_SD2_D2,
|
||
|
|
PB7_PF_SD2_D3,
|
||
|
|
PB8_PF_SD2_CMD,
|
||
|
|
PB9_PF_SD2_CLK,
|
||
|
|
/* FEC */
|
||
|
|
PD0_AIN_FEC_TXD0,
|
||
|
|
PD1_AIN_FEC_TXD1,
|
||
|
|
PD2_AIN_FEC_TXD2,
|
||
|
|
PD3_AIN_FEC_TXD3,
|
||
|
|
PD4_AOUT_FEC_RX_ER,
|
||
|
|
PD5_AOUT_FEC_RXD1,
|
||
|
|
PD6_AOUT_FEC_RXD2,
|
||
|
|
PD7_AOUT_FEC_RXD3,
|
||
|
|
PD8_AF_FEC_MDIO,
|
||
|
|
PD9_AIN_FEC_MDC,
|
||
|
|
PD10_AOUT_FEC_CRS,
|
||
|
|
PD11_AOUT_FEC_TX_CLK,
|
||
|
|
PD12_AOUT_FEC_RXD0,
|
||
|
|
PD13_AOUT_FEC_RX_DV,
|
||
|
|
PD14_AOUT_FEC_RX_CLK,
|
||
|
|
PD15_AOUT_FEC_COL,
|
||
|
|
PD16_AIN_FEC_TX_ER,
|
||
|
|
PF23_AIN_FEC_TX_EN,
|
||
|
|
/* SSI1 */
|
||
|
|
PC20_PF_SSI1_FS,
|
||
|
|
PC21_PF_SSI1_RXD,
|
||
|
|
PC22_PF_SSI1_TXD,
|
||
|
|
PC23_PF_SSI1_CLK,
|
||
|
|
/* onboard I2C */
|
||
|
|
PC5_PF_I2C2_SDA,
|
||
|
|
PC6_PF_I2C2_SCL,
|
||
|
|
/* external I2C */
|
||
|
|
PD17_PF_I2C_DATA,
|
||
|
|
PD18_PF_I2C_CLK,
|
||
|
|
/* SPI1 */
|
||
|
|
PD25_PF_CSPI1_RDY,
|
||
|
|
PD29_PF_CSPI1_SCLK,
|
||
|
|
PD30_PF_CSPI1_MISO,
|
||
|
|
PD31_PF_CSPI1_MOSI,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct imxuart_platform_data uart_pdata = {
|
||
|
|
.flags = IMXUART_HAVE_RTSCTS,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct mxc_nand_platform_data pca100_nand_board_info = {
|
||
|
|
.width = 1,
|
||
|
|
.hw_ecc = 1,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device *platform_devices[] __initdata = {
|
||
|
|
&mxc_w1_master_device,
|
||
|
|
&mxc_fec_device,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct imxi2c_platform_data pca100_i2c_1_data = {
|
||
|
|
.bitrate = 100000,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct at24_platform_data board_eeprom = {
|
||
|
|
.byte_len = 4096,
|
||
|
|
.page_size = 32,
|
||
|
|
.flags = AT24_FLAG_ADDR16,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct i2c_board_info pca100_i2c_devices[] = {
|
||
|
|
{
|
||
|
|
I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
|
||
|
|
.platform_data = &board_eeprom,
|
||
|
|
}, {
|
||
|
|
I2C_BOARD_INFO("rtc-pcf8563", 0x51),
|
||
|
|
.type = "pcf8563"
|
||
|
|
}, {
|
||
|
|
I2C_BOARD_INFO("lm75", 0x4a),
|
||
|
|
.type = "lm75"
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
|
||
|
|
static struct spi_eeprom at25320 = {
|
||
|
|
.name = "at25320an",
|
||
|
|
.byte_len = 4096,
|
||
|
|
.page_size = 32,
|
||
|
|
.flags = EE_ADDR2,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct spi_board_info pca100_spi_board_info[] __initdata = {
|
||
|
|
{
|
||
|
|
.modalias = "at25",
|
||
|
|
.max_speed_hz = 30000,
|
||
|
|
.bus_num = 0,
|
||
|
|
.chip_select = 1,
|
||
|
|
.platform_data = &at25320,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int pca100_spi_cs[] = {GPIO_PORTD + 28, GPIO_PORTD + 27};
|
||
|
|
|
||
|
|
static struct spi_imx_master pca100_spi_0_data = {
|
||
|
|
.chipselect = pca100_spi_cs,
|
||
|
|
.num_chipselect = ARRAY_SIZE(pca100_spi_cs),
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
|
||
|
|
void *data)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = request_irq(IRQ_GPIOC(29), detect_irq,
|
||
|
|
IRQF_DISABLED | IRQF_TRIGGER_FALLING,
|
||
|
|
"imx-mmc-detect", data);
|
||
|
|
if (ret)
|
||
|
|
printk(KERN_ERR
|
||
|
|
"pca100: Failed to reuest irq for sd/mmc detection\n");
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void pca100_sdhc2_exit(struct device *dev, void *data)
|
||
|
|
{
|
||
|
|
free_irq(IRQ_GPIOC(29), data);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct imxmmc_platform_data sdhc_pdata = {
|
||
|
|
.init = pca100_sdhc2_init,
|
||
|
|
.exit = pca100_sdhc2_exit,
|
||
|
|
};
|
||
|
|
|
||
|
|
static void __init pca100_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = mxc_gpio_setup_multiple_pins(pca100_pins,
|
||
|
|
ARRAY_SIZE(pca100_pins), "PCA100");
|
||
|
|
if (ret)
|
||
|
|
printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
|
||
|
|
|
||
|
|
mxc_register_device(&mxc_uart_device0, &uart_pdata);
|
||
|
|
|
||
|
|
mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN);
|
||
|
|
mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
|
||
|
|
|
||
|
|
mxc_register_device(&mxc_nand_device, &pca100_nand_board_info);
|
||
|
|
|
||
|
|
/* only the i2c master 1 is used on this CPU card */
|
||
|
|
i2c_register_board_info(1, pca100_i2c_devices,
|
||
|
|
ARRAY_SIZE(pca100_i2c_devices));
|
||
|
|
|
||
|
|
mxc_register_device(&mxc_i2c_device1, &pca100_i2c_1_data);
|
||
|
|
|
||
|
|
mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
|
||
|
|
mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_OUT);
|
||
|
|
|
||
|
|
/* GPIO0_IRQ */
|
||
|
|
mxc_gpio_mode(GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN);
|
||
|
|
/* GPIO1_IRQ */
|
||
|
|
mxc_gpio_mode(GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN);
|
||
|
|
/* GPIO2_IRQ */
|
||
|
|
mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN);
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
|
||
|
|
spi_register_board_info(pca100_spi_board_info,
|
||
|
|
ARRAY_SIZE(pca100_spi_board_info));
|
||
|
|
mxc_register_device(&mxc_spi_device0, &pca100_spi_0_data);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __init pca100_timer_init(void)
|
||
|
|
{
|
||
|
|
mx27_clocks_init(26000000);
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct sys_timer pca100_timer = {
|
||
|
|
.init = pca100_timer_init,
|
||
|
|
};
|
||
|
|
|
||
|
|
MACHINE_START(PCA100, "phyCARD-i.MX27")
|
||
|
|
.phys_io = AIPI_BASE_ADDR,
|
||
|
|
.io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
|
||
|
|
.boot_params = PHYS_OFFSET + 0x100,
|
||
|
|
.map_io = mx27_map_io,
|
||
|
|
.init_irq = mxc_init_irq,
|
||
|
|
.init_machine = pca100_init,
|
||
|
|
.timer = &pca100_timer,
|
||
|
|
MACHINE_END
|
||
|
|
|