/* * boot_mode.c * * Boot media related. * * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . * */ #include #include #include int get_boot_media(void) { unsigned int reg_val, boot_mode, spi_device_mode; int boot_media; reg_val = readl(SYS_CTRL_REG_BASE + REG_SYSSTAT); boot_mode = get_sys_boot_mode(reg_val); switch (boot_mode) { case BOOT_FROM_SPI: spi_device_mode = get_spi_device_type(reg_val); if (spi_device_mode) boot_media = BOOT_MEDIA_NAND; else boot_media = BOOT_MEDIA_SPIFLASH; break; case BOOT_FROM_EMMC: boot_media = BOOT_MEDIA_EMMC; break; default: boot_media = BOOT_MEDIA_UNKNOWN; break; } return boot_media; }