/* * Copyright (C) 2014 Gateworks Corporation * Copyright (C) 2011-2012 Freescale Semiconductor, Inc. * * Author: Tim Harvey * * SPDX-License-Identifier: GPL-2.0+ */ #include #include #include #include #include #include #include DECLARE_GLOBAL_DATA_PTR; #if defined(CONFIG_MX6) /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */ u32 spl_boot_device(void) { unsigned int bmode = readl(&src_base->sbmr2); u32 reg = imx6_src_get_boot_mode(); /* * Check for BMODE if serial downloader is enabled * BOOT_MODE - see IMX6DQRM Table 8-1 */ if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */ return BOOT_DEVICE_BOARD; /* * The above method does not detect that the boot ROM used * serial downloader in case the boot ROM decided to use the * serial downloader as a fall back (primary boot source failed). * * Infer that the boot ROM used the USB serial downloader by * checking whether the USB PHY is currently active... This * assumes that SPL did not (yet) initialize the USB PHY... */ if (is_usbotg_phy_active()) return BOOT_DEVICE_BOARD; /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) { /* EIM: See 8.5.1, Table 8-9 */ case IMX6_BMODE_EMI: /* BOOT_CFG1[3]: NOR/OneNAND Selection */ switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) { case IMX6_BMODE_ONENAND: return BOOT_DEVICE_ONENAND; case IMX6_BMODE_NOR: return BOOT_DEVICE_NOR; break; } /* Reserved: Used to force Serial Downloader */ case IMX6_BMODE_RESERVED: return BOOT_DEVICE_BOARD; /* SATA: See 8.5.4, Table 8-20 */ #if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL) case IMX6_BMODE_SATA: return BOOT_DEVICE_SATA; #endif /* Serial ROM: See 8.5.5.1, Table 8-22 */ case IMX6_BMODE_SERIAL_ROM: /* BOOT_CFG4[2:0] */ switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >> IMX6_BMODE_SERIAL_ROM_SHIFT) { case IMX6_BMODE_ECSPI1: case IMX6_BMODE_ECSPI2: case IMX6_BMODE_ECSPI3: case IMX6_BMODE_ECSPI4: case IMX6_BMODE_ECSPI5: return BOOT_DEVICE_SPI; case IMX6_BMODE_I2C1: case IMX6_BMODE_I2C2: case IMX6_BMODE_I2C3: return BOOT_DEVICE_I2C; } break; /* SD/eSD: 8.5.3, Table 8-15 */ case IMX6_BMODE_SD: case IMX6_BMODE_ESD: return BOOT_DEVICE_MMC1; /* MMC/eMMC: 8.5.3 */ case IMX6_BMODE_MMC: case IMX6_BMODE_EMMC: return BOOT_DEVICE_MMC1; /* NAND Flash: 8.5.2, Table 8-10 */ case IMX6_BMODE_NAND: return BOOT_DEVICE_NAND; } return BOOT_DEVICE_NONE; } #endif #if defined(CONFIG_SPL_MMC_SUPPORT) /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */ u32 spl_boot_mode(const u32 boot_device) { switch (spl_boot_device()) { /* for MMC return either RAW or FAT mode */ case BOOT_DEVICE_MMC1: case BOOT_DEVICE_MMC2: #if defined(CONFIG_SPL_FAT_SUPPORT) return MMCSD_MODE_FS; #elif defined(CONFIG_SUPPORT_EMMC_BOOT) return MMCSD_MODE_EMMCBOOT; #else return MMCSD_MODE_RAW; #endif break; default: puts("spl: ERROR: unsupported device\n"); hang(); } } #endif #if defined(CONFIG_SECURE_BOOT) __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image) { typedef void __noreturn (*image_entry_noargs_t)(void); image_entry_noargs_t image_entry = (image_entry_noargs_t)(unsigned long)spl_image->entry_point; debug("image entry point: 0x%lX\n", spl_image->entry_point); /* HAB looks for the CSF at the end of the authenticated data therefore, * we need to subtract the size of the CSF from the actual filesize */ if (authenticate_image(spl_image->load_addr, spl_image->size - CONFIG_CSF_SIZE)) { image_entry(); } else { puts("spl: ERROR: image authentication unsuccessful\n"); hang(); } } #endif #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT) int dram_init_banksize(void) { gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE; gd->bd->bi_dram[0].size = imx_ddr_size(); return 0; } #endif