mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
786d9f1a82
QorIQ U-Boot binary for SD card booting compiled during build process (either u-boot.bin or u-boot-with-spl.bin) cannot be directly loaded by QorIQ pre-PBL BootROM. Compiled U-Boot binary first needs to be processed by Freescale boot_format tool as described in doc/README.mpc85xx-sd-spi-boot BootROM requires that image on SD card must contain special boot sector. Implement support for generating this special boot sector directly in U-Boot start code. Boot sector needs to be at the beginning of the image, so when compiling only proper U-Boot without SPL then it needs to be in proper U-Boot. When compiling SPL with proper U-Boot then it needs to be only in SPL. Support can be enabled by a new config option FSL_PREPBL_ESDHC_BOOT_SECTOR. Via other two additional options FSL_PREPBL_ESDHC_BOOT_SECTOR_START and FSL_PREPBL_ESDHC_BOOT_SECTOR_DATA it is possible to tune how final U-Boot image could be stored on the SD card. Signed-off-by: Pali Rohár <pali@kernel.org>
115 lines
2.3 KiB
Text
115 lines
2.3 KiB
Text
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2006
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de
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*
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* Copyright 2009 Freescale Semiconductor, Inc.
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*/
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#include "config.h"
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OUTPUT_ARCH(powerpc)
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SECTIONS
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{
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/* Optional boot sector */
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#if defined(CONFIG_FSL_PREPBL_ESDHC_BOOT_SECTOR)
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.bootsect IMAGE_TEXT_BASE - CONFIG_FSL_PREPBL_ESDHC_BOOT_SECTOR_DATA * 512 : {
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KEEP(*(.bootsect))
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. = CONFIG_FSL_PREPBL_ESDHC_BOOT_SECTOR_DATA * 512;
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}
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#endif
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. = IMAGE_TEXT_BASE;
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.text : {
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/* For ifc, elbc, esdhc, espi, all need the SPL without section .resetvec */
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#if CONFIG_IS_ENABLED(SYS_MPC85XX_NO_RESETVEC)
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KEEP(*(.bootpg))
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#endif
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*(.text*)
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}
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_etext = .;
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.reloc : {
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_GOT2_TABLE_ = .;
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KEEP(*(.got2))
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KEEP(*(.got))
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_FIXUP_TABLE_ = .;
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KEEP(*(.fixup))
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}
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__got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
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__fixup_entries = (. - _FIXUP_TABLE_) >> 2;
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. = ALIGN(8);
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.data : {
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*(.rodata*)
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*(.data*)
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*(.sdata*)
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}
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_edata = .;
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. = ALIGN(4);
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__u_boot_list : {
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KEEP(*(SORT(__u_boot_list*)));
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}
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. = .;
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__start___ex_table = .;
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__ex_table : { *(__ex_table) }
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__stop___ex_table = .;
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. = ALIGN(8);
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__init_begin = .;
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__init_end = .;
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_end = .;
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#ifdef CONFIG_SPL_SKIP_RELOCATE
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. = ALIGN(4);
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__bss_start = .;
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.bss : {
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*(.sbss*)
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*(.bss*)
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}
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. = ALIGN(4);
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__bss_end = .;
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#endif
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/* For nor and nand is needed the SPL with section .resetvec */
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#if !CONFIG_IS_ENABLED(SYS_MPC85XX_NO_RESETVEC)
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#if defined(CONFIG_FSL_IFC) /* Restrict bootpg at 4K boundry for IFC */
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#ifndef BOOT_PAGE_OFFSET
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#define BOOT_PAGE_OFFSET 0x1000
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#endif
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.bootpg IMAGE_TEXT_BASE + BOOT_PAGE_OFFSET :
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{
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arch/powerpc/cpu/mpc85xx/start.o (.bootpg)
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}
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#ifndef RESET_VECTOR_OFFSET
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#define RESET_VECTOR_OFFSET 0x1ffc /* IFC has 8K sram */
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#endif
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#elif defined(CONFIG_FSL_ELBC)
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#define RESET_VECTOR_OFFSET 0xffc /* LBC has 4k sram */
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#else
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#error unknown NAND controller
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#endif
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.resetvec IMAGE_TEXT_BASE + RESET_VECTOR_OFFSET : {
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KEEP(*(.resetvec))
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} = 0xffff
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#endif
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#ifndef CONFIG_SPL_SKIP_RELOCATE
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/*
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* Make sure that the bss segment isn't linked at 0x0, otherwise its
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* address won't be updated during relocation fixups.
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*/
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. |= 0x10;
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. = ALIGN(4);
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__bss_start = .;
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.bss : {
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*(.sbss*)
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*(.bss*)
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}
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. = ALIGN(4);
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__bss_end = .;
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#endif
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}
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