// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2014-2016 Stefan Roese */ #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(CONFIG_SPL_SPI_FLASH_SUPPORT) || defined(CONFIG_SPL_MMC) || \ defined(CONFIG_SPL_SATA) /* * When loading U-Boot via SPL from SPI NOR, CONFIG_SYS_SPI_U_BOOT_OFFS must * point to the offset of kwbimage main header which is always at offset zero * (defined by BootROM). Therefore other values of CONFIG_SYS_SPI_U_BOOT_OFFS * makes U-Boot non-bootable. */ #ifdef CONFIG_SPL_SPI_FLASH_SUPPORT #if defined(CONFIG_SYS_SPI_U_BOOT_OFFS) && CONFIG_SYS_SPI_U_BOOT_OFFS != 0 #error CONFIG_SYS_SPI_U_BOOT_OFFS must be set to 0 #endif #endif /* * When loading U-Boot via SPL from eMMC, the kwbimage main header is stored at * sector 0 and either on HW boot partition or on data partition. Choice of HW * partition depends on what is configured in eMMC EXT_CSC register. * When loading U-Boot via SPL from SD card, the kwbimage main header is stored * at sector 1. * Therefore MBR/GPT partition booting, fixed sector number and fixed eMMC HW * partition number are unsupported due to limitation of Marvell BootROM. * Correct sector number must be determined as runtime in mvebu SPL code based * on the detected boot source. Otherwise U-Boot SPL would not be able to load * U-Boot proper. * Runtime mvebu SPL sector calculation code expects: * - CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET=0 * - CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0 */ #ifdef CONFIG_SPL_MMC #ifdef CONFIG_SYS_MMCSD_FS_BOOT #error CONFIG_SYS_MMCSD_FS_BOOT is unsupported #endif #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION #error CONFIG_SYS_MMCSD_FS_BOOT_PARTITION is unsupported #endif #ifdef CONFIG_SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG #error CONFIG_SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG is unsupported #endif #ifdef CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION #error CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION is unsupported #endif #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION #error CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is unsupported #endif #ifndef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR #error CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR must be enabled for SD/eMMC boot support #endif #if !defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR) || \ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR != 0 #error CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR must be set to 0 #endif #if !defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET) || \ (CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET != 0 && \ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET != 4096) #error CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET must be set to either 0 or 4096 #endif #endif /* * When loading U-Boot via SPL from SATA disk, the kwbimage main header is * stored at sector 1. Therefore CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR must be * set to 1. Otherwise U-Boot SPL would not be able to load U-Boot proper. */ #ifdef CONFIG_SPL_SATA #if !defined(CONFIG_SPL_SATA_RAW_U_BOOT_USE_SECTOR) || \ !defined(CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR) || CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR != 1 #error CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR must be set to 1 #endif #endif /* Boot Type - block ID */ #define IBR_HDR_I2C_ID 0x4D #define IBR_HDR_SPI_ID 0x5A #define IBR_HDR_NAND_ID 0x8B #define IBR_HDR_SATA_ID 0x78 #define IBR_HDR_PEX_ID 0x9C #define IBR_HDR_UART_ID 0x69 #define IBR_HDR_SDIO_ID 0xAE /* Structure of the main header, version 1 (Armada 370/XP/375/38x/39x) */ struct kwbimage_main_hdr_v1 { u8 blockid; /* 0x0 */ u8 flags; /* 0x1 */ u16 nandpagesize; /* 0x2-0x3 */ u32 blocksize; /* 0x4-0x7 */ u8 version; /* 0x8 */ u8 headersz_msb; /* 0x9 */ u16 headersz_lsb; /* 0xA-0xB */ u32 srcaddr; /* 0xC-0xF */ u32 destaddr; /* 0x10-0x13 */ u32 execaddr; /* 0x14-0x17 */ u8 options; /* 0x18 */ u8 nandblocksize; /* 0x19 */ u8 nandbadblklocation; /* 0x1A */ u8 reserved4; /* 0x1B */ u16 reserved5; /* 0x1C-0x1D */ u8 ext; /* 0x1E */ u8 checksum; /* 0x1F */ } __packed; #ifdef CONFIG_SPL_MMC u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device) { return IS_SD(mmc) ? MMCSD_MODE_RAW : MMCSD_MODE_EMMCBOOT; } unsigned long arch_spl_mmc_get_uboot_raw_sector(struct mmc *mmc, unsigned long raw_sect) { return IS_SD(mmc) ? 1 : 0; } #endif static u32 checksum32(void *start, u32 len) { u32 csum = 0; u32 *p = start; while (len > 0) { csum += *p++; len -= sizeof(u32); }; return csum; } int spl_check_board_image(struct spl_image_info *spl_image, const struct spl_boot_device *bootdev) { u32 csum = *(u32 *)(spl_image->load_addr + spl_image->size - 4); if (checksum32((void *)spl_image->load_addr, spl_image->size - 4) != csum) { printf("ERROR: Invalid data checksum in kwbimage\n"); return -EINVAL; } return 0; } int spl_parse_board_header(struct spl_image_info *spl_image, const struct spl_boot_device *bootdev, const void *image_header, size_t size) { const struct kwbimage_main_hdr_v1 *mhdr = image_header; if (size < sizeof(*mhdr)) { /* This should be compile time assert */ printf("FATAL ERROR: Image header size is too small\n"); hang(); } /* * Very basic check for image validity. We cannot check mhdr->checksum * as it is calculated also from variable length extended headers * (including SPL content) which is not included in U-Boot image_header. */ if (mhdr->version != 1 || ((mhdr->headersz_msb << 16) | mhdr->headersz_lsb) < sizeof(*mhdr)) { printf("ERROR: Invalid kwbimage v1\n"); return -EINVAL; } if (IS_ENABLED(CONFIG_SPL_SPI_FLASH_SUPPORT) && bootdev->boot_device == BOOT_DEVICE_SPI && mhdr->blockid != IBR_HDR_SPI_ID) { printf("ERROR: Wrong blockid (0x%x) in SPI kwbimage\n", mhdr->blockid); return -EINVAL; } if (IS_ENABLED(CONFIG_SPL_SATA) && bootdev->boot_device == BOOT_DEVICE_SATA && mhdr->blockid != IBR_HDR_SATA_ID) { printf("ERROR: Wrong blockid (0x%x) in SATA kwbimage\n", mhdr->blockid); return -EINVAL; } if (IS_ENABLED(CONFIG_SPL_MMC) && (bootdev->boot_device == BOOT_DEVICE_MMC1) && mhdr->blockid != IBR_HDR_SDIO_ID) { printf("ERROR: Wrong blockid (0x%x) in SDIO kwbimage\n", mhdr->blockid); return -EINVAL; } spl_image->offset = mhdr->srcaddr; /* * For SATA srcaddr is specified in number of sectors. * Retrieve block size of the first SCSI device (same * code used by the spl_sata_load_image_raw() function) * or fallback to default sector size of 512 bytes. */ if (IS_ENABLED(CONFIG_SPL_SATA) && mhdr->blockid == IBR_HDR_SATA_ID) { struct blk_desc *blk_dev = blk_get_devnum_by_uclass_id(UCLASS_SCSI, 0); unsigned long blksz = blk_dev ? blk_dev->blksz : 512; spl_image->offset *= blksz; } if (spl_image->offset % 4 != 0) { printf("ERROR: Wrong srcaddr (0x%08x) in kwbimage\n", spl_image->offset); return -EINVAL; } if (mhdr->blocksize <= 4 || mhdr->blocksize % 4 != 0) { printf("ERROR: Wrong blocksize (0x%08x) in kwbimage\n", mhdr->blocksize); return -EINVAL; } spl_image->size = mhdr->blocksize; spl_image->entry_point = mhdr->execaddr; spl_image->load_addr = mhdr->destaddr; spl_image->os = IH_OS_U_BOOT; spl_image->name = "U-Boot"; return 0; } u32 spl_boot_device(void) { u32 boot_device = get_boot_device(); switch (boot_device) { /* * Return to the BootROM to continue the Marvell xmodem * UART boot protocol. As initiated by the kwboot tool. * * This can only be done by the BootROM since the beginning * of the image is already read and interpreted by the BootROM. * SPL has no chance to receive this information. So we * need to return to the BootROM to enable this xmodem * UART download. Use SPL infrastructure to return to BootROM. */ case BOOT_DEVICE_UART: return BOOT_DEVICE_BOOTROM; /* * If SPL is compiled with chosen boot_device support * then use SPL driver for loading U-Boot proper. */ #ifdef CONFIG_SPL_MMC case BOOT_DEVICE_MMC1: return BOOT_DEVICE_MMC1; #endif #ifdef CONFIG_SPL_SATA case BOOT_DEVICE_SATA: return BOOT_DEVICE_SATA; #endif #ifdef CONFIG_SPL_SPI_FLASH_SUPPORT case BOOT_DEVICE_SPI: return BOOT_DEVICE_SPI; #endif /* * If SPL is not compiled with chosen boot_device support * then return to the BootROM. BootROM supports loading * U-Boot proper from any valid boot_device present in SAR * register. */ default: return BOOT_DEVICE_BOOTROM; } } void board_boot_order(u32 *spl_boot_list) { spl_boot_list[0] = spl_boot_device(); if (spl_boot_list[0] != BOOT_DEVICE_BOOTROM) spl_boot_list[1] = BOOT_DEVICE_BOOTROM; } #else u32 spl_boot_device(void) { return BOOT_DEVICE_BOOTROM; } #endif int board_return_to_bootrom(struct spl_image_info *spl_image, struct spl_boot_device *bootdev) { u32 *regs = *(u32 **)(CONFIG_SPL_STACK + 4); printf("Returning to BootROM (return address 0x%08x)...\n", regs[13]); return_to_bootrom(); /* NOTREACHED - return_to_bootrom() does not return */ hang(); } void board_init_f(ulong dummy) { int ret; /* * Pin muxing needs to be done before UART output, since * on A38x the UART pins need some re-muxing for output * to work. */ board_early_init_f(); /* * Use special translation offset for SPL. This needs to be * configured *before* spl_init() is called as this function * calls dm_init() which calls the bind functions of the * device drivers. Here the base address needs to be configured * (translated) correctly. */ gd->translation_offset = 0xd0000000 - 0xf1000000; ret = spl_init(); if (ret) { printf("spl_init() failed: %d\n", ret); hang(); } preloader_console_init(); /* Armada 375 does not support SerDes and DDR3 init yet */ #if !defined(CONFIG_ARMADA_375) /* First init the serdes PHY's */ serdes_phy_config(); /* Setup DDR */ ret = ddr3_init(); if (ret) { printf("ddr3_init() failed: %d\n", ret); if (IS_ENABLED(CONFIG_DDR_RESET_ON_TRAINING_FAILURE) && get_boot_device() != BOOT_DEVICE_UART) reset_cpu(); else hang(); } #endif /* Initialize Auto Voltage Scaling */ mv_avs_init(); /* Update read timing control for PCIe */ mv_rtc_config(); }