1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Freescale MX28EVK board
4 *
5 * (C) Copyright 2011 Freescale Semiconductor, Inc.
6 *
7 * Author: Fabio Estevam <fabio.estevam@freescale.com>
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 <net.h>
17 #include <asm/global_data.h>
18 #include <asm/gpio.h>
19 #include <asm/io.h>
20 #include <asm/arch/imx-regs.h>
21 #include <asm/arch/iomux-mx28.h>
22 #include <asm/arch/clock.h>
23 #include <asm/arch/sys_proto.h>
24 #include <linux/delay.h>
25 #include <linux/mii.h>
26 #include <miiphy.h>
27 #include <netdev.h>
28 #include <errno.h>
29
30 DECLARE_GLOBAL_DATA_PTR;
31
32 /*
33 * Functions
34 */
board_early_init_f(void)35 int board_early_init_f(void)
36 {
37 /* IO0 clock at 480MHz */
38 mxs_set_ioclk(MXC_IOCLK0, 480000);
39 /* IO1 clock at 480MHz */
40 mxs_set_ioclk(MXC_IOCLK1, 480000);
41
42 /* SSP0 clock at 96MHz */
43 mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
44 /* SSP2 clock at 160MHz */
45 mxs_set_sspclk(MXC_SSPCLK2, 160000, 0);
46
47 #ifdef CONFIG_CMD_USB
48 mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT);
49 mxs_iomux_setup_pad(MX28_PAD_AUART2_RX__GPIO_3_8 |
50 MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL);
51 gpio_direction_output(MX28_PAD_AUART2_RX__GPIO_3_8, 1);
52 #endif
53
54 /* Power on LCD */
55 gpio_direction_output(MX28_PAD_LCD_RESET__GPIO_3_30, 1);
56
57 /* Set contrast to maximum */
58 gpio_direction_output(MX28_PAD_PWM2__GPIO_3_18, 1);
59
60 return 0;
61 }
62
dram_init(void)63 int dram_init(void)
64 {
65 return mxs_dram_init();
66 }
67
board_init(void)68 int board_init(void)
69 {
70 /* Adress of boot parameters */
71 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
72
73 return 0;
74 }
75