u-boot-sunxi/include/fb_mmc.h

/*
 * Copyright 2014 Broadcom Corporation.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

void fb_mmc_flash_write(const char *cmd, void *download_buffer,
			unsigned int download_bytes, char *response);
void fb_mmc_erase(const char *cmd, char *response);