1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Freescale MX23EVK board
4  *
5  * (C) Copyright 2013 O.S. Systems Software LTDA.
6  *
7  * Author: Otavio Salvador <otavio@ossystems.com.br>
8  *
9  * Based on m28evk.c:
10  * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
11  * on behalf of DENX Software Engineering GmbH
12  */
13 
14 #include <common.h>
15 #include <init.h>
16 #include <asm/global_data.h>
17 #include <asm/gpio.h>
18 #include <asm/arch/imx-regs.h>
19 #include <asm/arch/clock.h>
20 #include <asm/arch/iomux-mx23.h>
21 #include <asm/arch/sys_proto.h>
22 
23 DECLARE_GLOBAL_DATA_PTR;
24 
25 /*
26  * Functions
27  */
board_early_init_f(void)28 int board_early_init_f(void)
29 {
30 	/* IO0 clock at 480MHz */
31 	mxs_set_ioclk(MXC_IOCLK0, 480000);
32 
33 	/* SSP0 clock at 96MHz */
34 	mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
35 
36 	/* Power on LCD */
37 	gpio_direction_output(MX23_PAD_LCD_RESET__GPIO_1_18, 1);
38 
39 	/* Set contrast to maximum */
40 	gpio_direction_output(MX23_PAD_PWM2__GPIO_1_28, 1);
41 
42 	return 0;
43 }
44 
dram_init(void)45 int dram_init(void)
46 {
47 	return mxs_dram_init();
48 }
49 
board_init(void)50 int board_init(void)
51 {
52 	/* Adress of boot parameters */
53 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
54 
55 	return 0;
56 }
57