1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2016 Freescale Semiconductor, Inc.
4  */
5 
6 #include <common.h>
7 #include <asm/io.h>
8 #include <asm/arch/sys_proto.h>
9 #include <asm/arch/mx7ulp-pins.h>
10 #include <asm/arch/iomux.h>
11 
12 DECLARE_GLOBAL_DATA_PTR;
13 
14 #define UART_PAD_CTRL	(PAD_CTL_PUS_UP)
15 
dram_init(void)16 int dram_init(void)
17 {
18 	gd->ram_size = PHYS_SDRAM_SIZE;
19 
20 	return 0;
21 }
22 
23 static iomux_cfg_t const lpuart4_pads[] = {
24 	MX7ULP_PAD_PTC3__LPUART4_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
25 	MX7ULP_PAD_PTC2__LPUART4_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
26 };
27 
setup_iomux_uart(void)28 static void setup_iomux_uart(void)
29 {
30 	mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
31 					 ARRAY_SIZE(lpuart4_pads));
32 }
33 
board_early_init_f(void)34 int board_early_init_f(void)
35 {
36 	setup_iomux_uart();
37 
38 	return 0;
39 }
40 
board_init(void)41 int board_init(void)
42 {
43 	/* address of boot parameters */
44 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
45 
46 	return 0;
47 }
48