u-boot/board/freescale/mx7ulp_evk/mx7ulp_evk.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2016 Freescale Semiconductor, Inc.
 */

#include <common.h>
#include <fdt_support.h>
#include <init.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mx7ulp-pins.h>
#include <asm/arch/iomux.h>
#include <asm/mach-imx/boot_mode.h>

DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL	(PAD_CTL_PUS_UP)

int dram_init(void)
{
	gd->ram_size = imx_ddr_size();

	return 0;
}

static iomux_cfg_t const lpuart4_pads[] = {
	MX7ULP_PAD_PTC3__LPUART4_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX7ULP_PAD_PTC2__LPUART4_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

static void setup_iomux_uart(void)
{
	mx7ulp_iomux_setup_multiple_pads(lpuart4_pads,
					 ARRAY_SIZE(lpuart4_pads));
}

int board_early_init_f(void)
{
	setup_iomux_uart();

	return 0;
}

int board_init(void)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

	return 0;
}

#if IS_ENABLED(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, struct bd_info *bd)
{
	const char *path;
	int rc, nodeoff;

	if (get_boot_device() == USB_BOOT) {
		path = fdt_get_alias(blob, "mmc0");
		if (!path) {
			puts("Not found mmc0\n");
			return 0;
		}

		nodeoff = fdt_path_offset(blob, path);
		if (nodeoff < 0)
			return 0;

		printf("Found usdhc0 node\n");
		if (fdt_get_property(blob, nodeoff, "vqmmc-supply",
		    NULL) != NULL) {
			rc = fdt_delprop(blob, nodeoff, "vqmmc-supply");
			if (!rc) {
				puts("Removed vqmmc-supply property\n");
add:
				rc = fdt_setprop(blob, nodeoff,
						 "no-1-8-v", NULL, 0);
				if (rc == -FDT_ERR_NOSPACE) {
					rc = fdt_increase_size(blob, 32);
					if (!rc)
						goto add;
				} else if (rc) {
					printf("Failed to add no-1-8-v property, %d\n", rc);
				} else {
					puts("Added no-1-8-v property\n");
				}
			} else {
				printf("Failed to remove vqmmc-supply property, %d\n", rc);
			}
		}
	}

	return 0;
}
#endif