board/freescale/mx28evk/mx28evk.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Freescale MX28EVK board
 *
 * (C) Copyright 2011 Freescale Semiconductor, Inc.
 *
 * Author: Fabio Estevam <fabio.estevam@freescale.com>
 *
 * Based on m28evk.c:
 * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
 * on behalf of DENX Software Engineering GmbH
 */

#include <init.h>
#include <net.h>
#include <asm/global_data.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux-mx28.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <linux/delay.h>
#include <linux/mii.h>
#include <miiphy.h>
#include <netdev.h>
#include <errno.h>

DECLARE_GLOBAL_DATA_PTR;

/*
 * Functions
 */
int board_early_init_f(void)
{
	/* IO0 clock at 480MHz */
	mxs_set_ioclk(MXC_IOCLK0, 480000);
	/* IO1 clock at 480MHz */
	mxs_set_ioclk(MXC_IOCLK1, 480000);

	/* SSP0 clock at 96MHz */
	mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
	/* SSP2 clock at 160MHz */
	mxs_set_sspclk(MXC_SSPCLK2, 160000, 0);

#ifdef	CONFIG_CMD_USB
	mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT);
	mxs_iomux_setup_pad(MX28_PAD_AUART2_RX__GPIO_3_8 |
			MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL);
	gpio_direction_output(MX28_PAD_AUART2_RX__GPIO_3_8, 1);
#endif

	/* Power on LCD */
	gpio_direction_output(MX28_PAD_LCD_RESET__GPIO_3_30, 1);

	/* Set contrast to maximum */
	gpio_direction_output(MX28_PAD_PWM2__GPIO_3_18, 1);

	return 0;
}

int dram_init(void)
{
	return mxs_dram_init();
}

int board_init(void)
{
	/* Adress of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

	return 0;
}