mx25: pdk: add platform code for FEC support

#include <linux/types.h>

#include <linux/init.h>

#include <linux/delay.h>

#include <linux/clk.h>

#include <linux/irq.h>

#include <linux/gpio.h>

#include <linux/smsc911x.h>

#include <linux/fec.h>

#include <linux/platform_device.h>

#include <mach/hardware.h>

#include <mach/mx25.h>

#include <mach/mxc_nand.h>

#include "devices.h"

#include <mach/iomux-v3.h>

#include <mach/iomux.h>

static struct imxuart_platform_data uart_pdata = {

	.flags = IMXUART_HAVE_RTSCTS,

};

static struct pad_desc mx25pdk_pads[] = {

	MX25_PAD_FEC_MDC__FEC_MDC,

	MX25_PAD_FEC_MDIO__FEC_MDIO,

	MX25_PAD_FEC_TDATA0__FEC_TDATA0,

	MX25_PAD_FEC_TDATA1__FEC_TDATA1,

	MX25_PAD_FEC_TX_EN__FEC_TX_EN,

	MX25_PAD_FEC_RDATA0__FEC_RDATA0,

	MX25_PAD_FEC_RDATA1__FEC_RDATA1,

	MX25_PAD_FEC_RX_DV__FEC_RX_DV,

	MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,

	MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */

	MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */

};

static struct fec_platform_data mx25_fec_pdata = {

        .phy    = PHY_INTERFACE_MODE_RMII,

};

#define FEC_ENABLE_GPIO		35

#define FEC_RESET_B_GPIO	104

static void __init mx25pdk_fec_reset(void)

{

	gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");

	gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");

	gpio_direction_output(FEC_ENABLE_GPIO, 0);  /* drop PHY power */

	gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */

	udelay(2);

	/* turn on PHY power and lift reset */

	gpio_set_value(FEC_ENABLE_GPIO, 1);

	gpio_set_value(FEC_RESET_B_GPIO, 1);

}

static void __init mx25pdk_init(void)

{

	mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,

			ARRAY_SIZE(mx25pdk_pads));

	mxc_register_device(&mxc_uart_device0, &uart_pdata);

	mxc_register_device(&mxc_usbh2, NULL);

	mx25pdk_fec_reset();

	mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);

}

static void __init mx25pdk_timer_init(void)