mirror of
https://github.com/AsahiLinux/u-boot
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7af368f471
kwbimage v1 is used on more SoCs. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Stefan Roese <sr@denx.de>
302 lines
8.3 KiB
C
302 lines
8.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2014-2016 Stefan Roese <sr@denx.de>
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*/
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#include <common.h>
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#include <dm.h>
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#include <debug_uart.h>
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#include <fdtdec.h>
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#include <hang.h>
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#include <image.h>
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#include <init.h>
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#include <log.h>
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#include <spl.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/soc.h>
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#if defined(CONFIG_SPL_SPI_FLASH_SUPPORT) || defined(CONFIG_SPL_MMC) || \
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defined(CONFIG_SPL_SATA)
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/*
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* When loading U-Boot via SPL from SPI NOR, CONFIG_SYS_SPI_U_BOOT_OFFS must
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* point to the offset of kwbimage main header which is always at offset zero
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* (defined by BootROM). Therefore other values of CONFIG_SYS_SPI_U_BOOT_OFFS
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* makes U-Boot non-bootable.
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*/
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#ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
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#if defined(CONFIG_SYS_SPI_U_BOOT_OFFS) && CONFIG_SYS_SPI_U_BOOT_OFFS != 0
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#error CONFIG_SYS_SPI_U_BOOT_OFFS must be set to 0
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#endif
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#endif
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/*
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* When loading U-Boot via SPL from eMMC (in Marvell terminology SDIO), the
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* kwbimage main header is stored at sector 0. U-Boot SPL needs to parse this
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* header and figure out at which sector the U-Boot proper binary is stored.
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* Partition booting is therefore not supported and CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
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* and CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET need to point to the
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* kwbimage main header.
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*/
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#ifdef CONFIG_SPL_MMC
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#ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
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#error CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION is unsupported
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#endif
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#if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR) && CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR != 0
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#error CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR must be set to 0
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#endif
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#if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET) && CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET != 0
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#error CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET must be set to 0
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#endif
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#endif
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/*
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* When loading U-Boot via SPL from SATA disk, the kwbimage main header is
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* stored at sector 1. Therefore CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR must be
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* set to 1. Otherwise U-Boot SPL would not be able to load U-Boot proper.
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*/
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#ifdef CONFIG_SPL_SATA
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#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
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#error CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR must be set to 1
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#endif
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#endif
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/* Boot Type - block ID */
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#define IBR_HDR_I2C_ID 0x4D
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#define IBR_HDR_SPI_ID 0x5A
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#define IBR_HDR_NAND_ID 0x8B
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#define IBR_HDR_SATA_ID 0x78
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#define IBR_HDR_PEX_ID 0x9C
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#define IBR_HDR_UART_ID 0x69
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#define IBR_HDR_SDIO_ID 0xAE
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/* Structure of the main header, version 1 (Armada 370/XP/375/38x/39x) */
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struct kwbimage_main_hdr_v1 {
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uint8_t blockid; /* 0x0 */
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uint8_t flags; /* 0x1 */
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uint16_t nandpagesize; /* 0x2-0x3 */
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uint32_t blocksize; /* 0x4-0x7 */
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uint8_t version; /* 0x8 */
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uint8_t headersz_msb; /* 0x9 */
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uint16_t headersz_lsb; /* 0xA-0xB */
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uint32_t srcaddr; /* 0xC-0xF */
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uint32_t destaddr; /* 0x10-0x13 */
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uint32_t execaddr; /* 0x14-0x17 */
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uint8_t options; /* 0x18 */
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uint8_t nandblocksize; /* 0x19 */
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uint8_t nandbadblklocation; /* 0x1A */
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uint8_t reserved4; /* 0x1B */
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uint16_t reserved5; /* 0x1C-0x1D */
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uint8_t ext; /* 0x1E */
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uint8_t checksum; /* 0x1F */
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} __packed;
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#ifdef CONFIG_SPL_MMC
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u32 spl_mmc_boot_mode(const u32 boot_device)
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{
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return MMCSD_MODE_RAW;
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}
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#endif
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int spl_parse_board_header(struct spl_image_info *spl_image,
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const void *image_header, size_t size)
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{
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const struct kwbimage_main_hdr_v1 *mhdr = image_header;
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if (size < sizeof(*mhdr)) {
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/* This should be compile time assert */
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printf("FATAL ERROR: Image header size is too small\n");
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hang();
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}
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/*
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* Very basic check for image validity. We cannot check mhdr->checksum
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* as it is calculated also from variable length extended headers
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* (including SPL content) which is not included in U-Boot image_header.
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*/
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if (mhdr->version != 1 ||
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((mhdr->headersz_msb << 16) | mhdr->headersz_lsb) < sizeof(*mhdr) ||
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(
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#ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
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mhdr->blockid != IBR_HDR_SPI_ID &&
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#endif
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#ifdef CONFIG_SPL_SATA
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mhdr->blockid != IBR_HDR_SATA_ID &&
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#endif
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#ifdef CONFIG_SPL_MMC
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mhdr->blockid != IBR_HDR_SDIO_ID &&
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#endif
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1
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)) {
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printf("ERROR: Not valid SPI/NAND/SATA/SDIO kwbimage v1\n");
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return -EINVAL;
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}
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spl_image->offset = mhdr->srcaddr;
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#ifdef CONFIG_SPL_SATA
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/*
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* For SATA srcaddr is specified in number of sectors.
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* The main header is must be stored at sector number 1.
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* This expects that sector size is 512 bytes and recalculates
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* data offset to bytes relative to the main header.
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*/
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if (mhdr->blockid == IBR_HDR_SATA_ID) {
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if (spl_image->offset < 1) {
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printf("ERROR: Wrong SATA srcaddr in kwbimage\n");
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return -EINVAL;
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}
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spl_image->offset -= 1;
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spl_image->offset *= 512;
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}
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#endif
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#ifdef CONFIG_SPL_MMC
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/*
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* For SDIO (eMMC) srcaddr is specified in number of sectors.
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* This expects that sector size is 512 bytes and recalculates
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* data offset to bytes.
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*/
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if (mhdr->blockid == IBR_HDR_SDIO_ID)
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spl_image->offset *= 512;
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#endif
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spl_image->size = mhdr->blocksize;
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spl_image->entry_point = mhdr->execaddr;
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spl_image->load_addr = mhdr->destaddr;
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spl_image->os = IH_OS_U_BOOT;
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spl_image->name = "U-Boot";
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return 0;
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}
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u32 spl_boot_device(void)
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{
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u32 boot_device = get_boot_device();
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switch (boot_device) {
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/*
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* Return to the BootROM to continue the Marvell xmodem
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* UART boot protocol. As initiated by the kwboot tool.
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*
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* This can only be done by the BootROM since the beginning
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* of the image is already read and interpreted by the BootROM.
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* SPL has no chance to receive this information. So we
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* need to return to the BootROM to enable this xmodem
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* UART download. Use SPL infrastructure to return to BootROM.
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*/
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case BOOT_DEVICE_UART:
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return BOOT_DEVICE_BOOTROM;
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/*
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* If SPL is compiled with chosen boot_device support
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* then use SPL driver for loading U-Boot proper.
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*/
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#ifdef CONFIG_SPL_MMC
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case BOOT_DEVICE_MMC1:
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return BOOT_DEVICE_MMC1;
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#endif
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#ifdef CONFIG_SPL_SATA
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case BOOT_FROM_SATA:
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return BOOT_FROM_SATA;
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#endif
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#ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
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case BOOT_DEVICE_SPI:
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return BOOT_DEVICE_SPI;
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#endif
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/*
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* If SPL is not compiled with chosen boot_device support
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* then return to the BootROM. BootROM supports loading
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* U-Boot proper from any valid boot_device present in SAR
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* register.
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*/
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default:
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return BOOT_DEVICE_BOOTROM;
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}
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}
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#else
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u32 spl_boot_device(void)
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{
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return BOOT_DEVICE_BOOTROM;
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}
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#endif
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int board_return_to_bootrom(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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u32 *regs = *(u32 **)CONFIG_SPL_BOOTROM_SAVE;
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printf("Returning to BootROM (return address 0x%08x)...\n", regs[13]);
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return_to_bootrom();
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/* NOTREACHED - return_to_bootrom() does not return */
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hang();
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}
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void board_init_f(ulong dummy)
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{
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int ret;
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/*
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* Pin muxing needs to be done before UART output, since
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* on A38x the UART pins need some re-muxing for output
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* to work.
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*/
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board_early_init_f();
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/* Example code showing how to enable the debug UART on MVEBU */
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#ifdef EARLY_UART
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/*
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* Debug UART can be used from here if required:
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*
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* debug_uart_init();
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* printch('a');
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* printhex8(0x1234);
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* printascii("string");
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*/
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#endif
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/*
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* Use special translation offset for SPL. This needs to be
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* configured *before* spl_init() is called as this function
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* calls dm_init() which calls the bind functions of the
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* device drivers. Here the base address needs to be configured
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* (translated) correctly.
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*/
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gd->translation_offset = 0xd0000000 - 0xf1000000;
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ret = spl_init();
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if (ret) {
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debug("spl_init() failed: %d\n", ret);
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hang();
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}
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preloader_console_init();
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timer_init();
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/* Armada 375 does not support SerDes and DDR3 init yet */
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#if !defined(CONFIG_ARMADA_375)
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/* First init the serdes PHY's */
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serdes_phy_config();
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/* Setup DDR */
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ret = ddr3_init();
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if (ret) {
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debug("ddr3_init() failed: %d\n", ret);
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hang();
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}
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#endif
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/* Initialize Auto Voltage Scaling */
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mv_avs_init();
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/* Update read timing control for PCIe */
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mv_rtc_config();
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}
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