1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2016 Savoir-faire Linux Inc.
4  *
5  * Author: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
6  *
7  * Based on work from TS7680 code by:
8  *   Kris Bahnsen <kris@embeddedarm.com>
9  *   Mark Featherston <mark@embeddedarm.com>
10  *   https://github.com/embeddedarm/u-boot/tree/master/board/technologic/ts7680
11  *
12  * Derived from MX28EVK code by
13  *   Freescale Semiconductor, Inc.
14  */
15 
16 #include <common.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/mii.h>
24 #include <miiphy.h>
25 #include <netdev.h>
26 #include <errno.h>
27 
28 DECLARE_GLOBAL_DATA_PTR;
29 
30 int board_early_init_f(void)
31 {
32 	/* IO0 clock at 480MHz */
33 	mxs_set_ioclk(MXC_IOCLK0, 480000);
34 	/* IO1 clock at 480MHz */
35 	mxs_set_ioclk(MXC_IOCLK1, 480000);
36 
37 	/* SSP0 clocks at 96MHz */
38 	mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
39 
40 	return 0;
41 }
42 
43 int dram_init(void)
44 {
45 	return mxs_dram_init();
46 }
47 
48 int board_init(void)
49 {
50 	/* Adress of boot parameters */
51 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
52 
53 	return 0;
54 }
55 
56 #ifdef CONFIG_CMD_MMC
57 static int ts4600_mmc_cd(int id)
58 {
59 	return 1;
60 }
61 
62 int board_mmc_init(bd_t *bis)
63 {
64 	int ret;
65 
66 	mxs_iomux_setup_pad(MX28_PAD_PWM3__GPIO_3_28);
67 
68 	/* Power-on SD */
69 	gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 1);
70 	udelay(1000);
71 	gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
72 
73 	/* SD card */
74 	ret = mxsmmc_initialize(bis, 0, NULL, ts4600_mmc_cd);
75 	if(ret != 0) {
76 		printf("SD controller initialized with %d\n", ret);
77 	}
78 
79 	return ret;
80 }
81 #endif
82 
83 int checkboard(void)
84 {
85 	puts("Board: TS4600\n");
86 
87 	return 0;
88 }
89