1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Freescale MX23EVK board
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * (C) Copyright 2013 O.S. Systems Software LTDA.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Author: Otavio Salvador <otavio@ossystems.com.br>
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Based on m28evk.c:
9*4882a593Smuzhiyun * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
10*4882a593Smuzhiyun * on behalf of DENX Software Engineering GmbH
11*4882a593Smuzhiyun *
12*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
13*4882a593Smuzhiyun */
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include <common.h>
16*4882a593Smuzhiyun #include <asm/gpio.h>
17*4882a593Smuzhiyun #include <asm/arch/imx-regs.h>
18*4882a593Smuzhiyun #include <asm/arch/clock.h>
19*4882a593Smuzhiyun #include <asm/arch/iomux-mx23.h>
20*4882a593Smuzhiyun #include <asm/arch/sys_proto.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun /*
25*4882a593Smuzhiyun * Functions
26*4882a593Smuzhiyun */
board_early_init_f(void)27*4882a593Smuzhiyun int board_early_init_f(void)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun /* IO0 clock at 480MHz */
30*4882a593Smuzhiyun mxs_set_ioclk(MXC_IOCLK0, 480000);
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun /* SSP0 clock at 96MHz */
33*4882a593Smuzhiyun mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /* Power on LCD */
36*4882a593Smuzhiyun gpio_direction_output(MX23_PAD_LCD_RESET__GPIO_1_18, 1);
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun /* Set contrast to maximum */
39*4882a593Smuzhiyun gpio_direction_output(MX23_PAD_PWM2__GPIO_1_28, 1);
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun return 0;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
dram_init(void)44*4882a593Smuzhiyun int dram_init(void)
45*4882a593Smuzhiyun {
46*4882a593Smuzhiyun return mxs_dram_init();
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
board_init(void)49*4882a593Smuzhiyun int board_init(void)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun /* Adress of boot parameters */
52*4882a593Smuzhiyun gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun return 0;
55*4882a593Smuzhiyun }
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun #ifdef CONFIG_CMD_MMC
mx23evk_mmc_wp(int id)58*4882a593Smuzhiyun static int mx23evk_mmc_wp(int id)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun if (id != 0) {
61*4882a593Smuzhiyun printf("MXS MMC: Invalid card selected (card id = %d)\n", id);
62*4882a593Smuzhiyun return 1;
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun return gpio_get_value(MX23_PAD_PWM4__GPIO_1_30);
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
board_mmc_init(bd_t * bis)68*4882a593Smuzhiyun int board_mmc_init(bd_t *bis)
69*4882a593Smuzhiyun {
70*4882a593Smuzhiyun /* Configure WP as input */
71*4882a593Smuzhiyun gpio_direction_input(MX23_PAD_PWM4__GPIO_1_30);
72*4882a593Smuzhiyun
73*4882a593Smuzhiyun /* Configure MMC0 Power Enable */
74*4882a593Smuzhiyun gpio_direction_output(MX23_PAD_PWM3__GPIO_1_29, 0);
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun return mxsmmc_initialize(bis, 0, mx23evk_mmc_wp, NULL);
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun #endif
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