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