245 lines
5.9 KiB
C
245 lines
5.9 KiB
C
/*
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* Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
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* Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/i2c.h>
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#include <linux/i2c/at24.h>
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#include <linux/dma-mapping.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/eeprom.h>
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#include <linux/irq.h>
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#include <linux/gpio.h>
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#include <asm/mach/arch.h>
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#include <asm/mach-types.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <mach/iomux.h>
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#include <mach/i2c.h>
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#include <asm/mach/time.h>
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#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
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#include <mach/spi.h>
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#endif
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#include <mach/imx-uart.h>
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#include <mach/mxc_nand.h>
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#include <mach/irqs.h>
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#include <mach/mmc.h>
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#include "devices.h"
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static int pca100_pins[] = {
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/* UART1 */
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS,
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/* SDHC */
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PB4_PF_SD2_D0,
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PB5_PF_SD2_D1,
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PB6_PF_SD2_D2,
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PB7_PF_SD2_D3,
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PB8_PF_SD2_CMD,
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PB9_PF_SD2_CLK,
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/* FEC */
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PD0_AIN_FEC_TXD0,
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PD1_AIN_FEC_TXD1,
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PD2_AIN_FEC_TXD2,
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PD3_AIN_FEC_TXD3,
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PD4_AOUT_FEC_RX_ER,
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PD5_AOUT_FEC_RXD1,
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PD6_AOUT_FEC_RXD2,
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PD7_AOUT_FEC_RXD3,
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PD8_AF_FEC_MDIO,
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PD9_AIN_FEC_MDC,
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PD10_AOUT_FEC_CRS,
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PD11_AOUT_FEC_TX_CLK,
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PD12_AOUT_FEC_RXD0,
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PD13_AOUT_FEC_RX_DV,
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PD14_AOUT_FEC_RX_CLK,
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PD15_AOUT_FEC_COL,
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PD16_AIN_FEC_TX_ER,
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PF23_AIN_FEC_TX_EN,
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/* SSI1 */
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PC20_PF_SSI1_FS,
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PC21_PF_SSI1_RXD,
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PC22_PF_SSI1_TXD,
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PC23_PF_SSI1_CLK,
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/* onboard I2C */
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PC5_PF_I2C2_SDA,
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PC6_PF_I2C2_SCL,
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/* external I2C */
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PD17_PF_I2C_DATA,
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PD18_PF_I2C_CLK,
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/* SPI1 */
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PD25_PF_CSPI1_RDY,
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PD29_PF_CSPI1_SCLK,
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PD30_PF_CSPI1_MISO,
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PD31_PF_CSPI1_MOSI,
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};
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static struct imxuart_platform_data uart_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct mxc_nand_platform_data pca100_nand_board_info = {
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.width = 1,
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.hw_ecc = 1,
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};
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static struct platform_device *platform_devices[] __initdata = {
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&mxc_w1_master_device,
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&mxc_fec_device,
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};
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static struct imxi2c_platform_data pca100_i2c_1_data = {
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.bitrate = 100000,
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};
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static struct at24_platform_data board_eeprom = {
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.byte_len = 4096,
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.page_size = 32,
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.flags = AT24_FLAG_ADDR16,
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};
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static struct i2c_board_info pca100_i2c_devices[] = {
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{
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I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
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.platform_data = &board_eeprom,
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}, {
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I2C_BOARD_INFO("rtc-pcf8563", 0x51),
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.type = "pcf8563"
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}, {
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I2C_BOARD_INFO("lm75", 0x4a),
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.type = "lm75"
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}
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};
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#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
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static struct spi_eeprom at25320 = {
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.name = "at25320an",
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.byte_len = 4096,
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.page_size = 32,
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.flags = EE_ADDR2,
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};
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static struct spi_board_info pca100_spi_board_info[] __initdata = {
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{
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.modalias = "at25",
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.max_speed_hz = 30000,
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.bus_num = 0,
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.chip_select = 1,
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.platform_data = &at25320,
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},
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};
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static int pca100_spi_cs[] = {GPIO_PORTD + 28, GPIO_PORTD + 27};
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static struct spi_imx_master pca100_spi_0_data = {
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.chipselect = pca100_spi_cs,
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.num_chipselect = ARRAY_SIZE(pca100_spi_cs),
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};
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#endif
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static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
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void *data)
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{
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int ret;
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ret = request_irq(IRQ_GPIOC(29), detect_irq,
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IRQF_DISABLED | IRQF_TRIGGER_FALLING,
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"imx-mmc-detect", data);
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if (ret)
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printk(KERN_ERR
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"pca100: Failed to reuest irq for sd/mmc detection\n");
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return ret;
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}
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static void pca100_sdhc2_exit(struct device *dev, void *data)
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{
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free_irq(IRQ_GPIOC(29), data);
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}
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static struct imxmmc_platform_data sdhc_pdata = {
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.init = pca100_sdhc2_init,
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.exit = pca100_sdhc2_exit,
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};
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static void __init pca100_init(void)
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{
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int ret;
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ret = mxc_gpio_setup_multiple_pins(pca100_pins,
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ARRAY_SIZE(pca100_pins), "PCA100");
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if (ret)
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printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
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mxc_register_device(&mxc_uart_device0, &uart_pdata);
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mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN);
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mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
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mxc_register_device(&mxc_nand_device, &pca100_nand_board_info);
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/* only the i2c master 1 is used on this CPU card */
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i2c_register_board_info(1, pca100_i2c_devices,
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ARRAY_SIZE(pca100_i2c_devices));
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mxc_register_device(&mxc_i2c_device1, &pca100_i2c_1_data);
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mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
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mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_OUT);
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/* GPIO0_IRQ */
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mxc_gpio_mode(GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN);
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/* GPIO1_IRQ */
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mxc_gpio_mode(GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN);
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/* GPIO2_IRQ */
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mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN);
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#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
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spi_register_board_info(pca100_spi_board_info,
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ARRAY_SIZE(pca100_spi_board_info));
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mxc_register_device(&mxc_spi_device0, &pca100_spi_0_data);
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#endif
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platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
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}
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static void __init pca100_timer_init(void)
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{
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mx27_clocks_init(26000000);
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}
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static struct sys_timer pca100_timer = {
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.init = pca100_timer_init,
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};
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MACHINE_START(PCA100, "phyCARD-i.MX27")
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.phys_io = AIPI_BASE_ADDR,
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.io_pg_offst = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mx27_map_io,
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.init_irq = mxc_init_irq,
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.init_machine = pca100_init,
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.timer = &pca100_timer,
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MACHINE_END
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