1 /*
2 * (C) Copyright 2016 Savoir-faire Linux Inc.
3 *
4 * Author: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
5 *
6 * Based on work from TS7680 code by:
7 * Kris Bahnsen <kris@embeddedarm.com>
8 * Mark Featherston <mark@embeddedarm.com>
9 * https://github.com/embeddedarm/u-boot/tree/master/board/technologic/ts7680
10 *
11 * Derived from MX28EVK code by
12 * Freescale Semiconductor, Inc.
13 *
14 * SPDX-License-Identifier: GPL-2.0+
15 */
16
17 #include <common.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/mii.h>
25 #include <miiphy.h>
26 #include <netdev.h>
27 #include <errno.h>
28
29 DECLARE_GLOBAL_DATA_PTR;
30
board_early_init_f(void)31 int board_early_init_f(void)
32 {
33 /* IO0 clock at 480MHz */
34 mxs_set_ioclk(MXC_IOCLK0, 480000);
35 /* IO1 clock at 480MHz */
36 mxs_set_ioclk(MXC_IOCLK1, 480000);
37
38 /* SSP0 clocks at 96MHz */
39 mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
40
41 return 0;
42 }
43
dram_init(void)44 int dram_init(void)
45 {
46 return mxs_dram_init();
47 }
48
board_init(void)49 int board_init(void)
50 {
51 /* Adress of boot parameters */
52 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
53
54 return 0;
55 }
56
57 #ifdef CONFIG_CMD_MMC
ts4600_mmc_cd(int id)58 static int ts4600_mmc_cd(int id)
59 {
60 return 1;
61 }
62
board_mmc_init(bd_t * bis)63 int board_mmc_init(bd_t *bis)
64 {
65 int ret;
66
67 mxs_iomux_setup_pad(MX28_PAD_PWM3__GPIO_3_28);
68
69 /* Power-on SD */
70 gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 1);
71 udelay(1000);
72 gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
73
74 /* SD card */
75 ret = mxsmmc_initialize(bis, 0, NULL, ts4600_mmc_cd);
76 if(ret != 0) {
77 printf("SD controller initialized with %d\n", ret);
78 }
79
80 return ret;
81 }
82 #endif
83
checkboard(void)84 int checkboard(void)
85 {
86 puts("Board: TS4600\n");
87
88 return 0;
89 }
90