1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2019 Linaro Ltd.
4  * Copyright (C) 2016 NXP Semiconductors
5  */
6 
7 #include <init.h>
8 #include <asm/arch/clock.h>
9 #include <asm/arch/imx-regs.h>
10 #include <asm/arch/mx7-pins.h>
11 #include <asm/arch/sys_proto.h>
12 #include <asm/global_data.h>
13 #include <asm/mach-imx/iomux-v3.h>
14 #include <asm/io.h>
15 #include <common.h>
16 #include <linux/sizes.h>
17 
18 DECLARE_GLOBAL_DATA_PTR;
19 
20 #define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | \
21 			PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)
22 
23 static iomux_v3_cfg_t const meerkat96_pads[] = {
24 	/* UART6 as debug serial */
25 	MX7D_PAD_SD1_CD_B__UART6_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
26 	MX7D_PAD_SD1_WP__UART6_DCE_TX   | MUX_PAD_CTRL(UART_PAD_CTRL),
27 	/* WDOG1 for reset */
28 	MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
29 };
30 
dram_init(void)31 int dram_init(void)
32 {
33 	gd->ram_size = PHYS_SDRAM_SIZE;
34 
35 	return 0;
36 }
37 
board_early_init_f(void)38 int board_early_init_f(void)
39 {
40 	imx_iomux_v3_setup_multiple_pads(meerkat96_pads,
41 					 ARRAY_SIZE(meerkat96_pads));
42 
43 	return 0;
44 }
45 
board_init(void)46 int board_init(void)
47 {
48 	/* address of boot parameters */
49 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
50 
51 	return 0;
52 }
53 
checkboard(void)54 int checkboard(void)
55 {
56 	char *mode;
57 
58 	if (IS_ENABLED(CONFIG_ARMV7_BOOT_SEC_DEFAULT))
59 		mode = "secure";
60 	else
61 		mode = "non-secure";
62 
63 	printf("Board: i.MX7D Meerkat96 in %s mode\n", mode);
64 
65 	return 0;
66 }
67 
board_late_init(void)68 int board_late_init(void)
69 {
70 	set_wdog_reset((struct wdog_regs *)WDOG1_BASE_ADDR);
71 
72 	return 0;
73 }
74