From: Michael Srba <[email protected]> This custom linker script is required to produce a bootable ELF for the sdm845 SoC. An xbl_sec.elf must be provided, which will be put in a section in the ELF as required by the boot rom.
Signed-off-by: Michael Srba <[email protected]> Reviewed-by: Simon Glass <[email protected]> --- arch/arm/mach-snapdragon/u-boot-spl-elf-sdm845.lds | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/arch/arm/mach-snapdragon/u-boot-spl-elf-sdm845.lds b/arch/arm/mach-snapdragon/u-boot-spl-elf-sdm845.lds new file mode 100644 index 00000000000..3740209d499 --- /dev/null +++ b/arch/arm/mach-snapdragon/u-boot-spl-elf-sdm845.lds @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +/* + * The boot rom uses the segment type to identify the xbl_sec program header. + * See https://github.com/coreboot/coreboot/blob/643efabd2af9f7ac/util/qualcomm/mbn_tools.py#L143. + */ +#define PF_SEGMENT_TYPE_XBL_SEC 5 + +/* + * The boot rom expects this to be equal to a seemingly magic value possibly specific + * to a particular xbl_sec.elf. If you're extracting your xbl_sec.elf from an xbl elf, + * you can just reuse the value; otherwise you can either compute it yourself or use + * coreboot's tool. + * See https://github.com/coreboot/coreboot/blob/643efabd2af9f7ac/util/qualcomm/createxbl.py#L638. + */ +#define XLB_SEC_SEGMENT_ADDR 0x0000000014699000 + + +TARGET("binary") +INPUT("./xbl_sec.elf") + +OUTPUT_FORMAT("default") + +ENTRY(CONFIG_PLATFORM_ELFENTRY) +PHDRS +{ + data PT_LOAD FLAGS(7); + xbl_sec PT_LOAD FLAGS(5 | (PF_SEGMENT_TYPE_XBL_SEC << 24)); +} +SECTIONS +{ + + . = XLB_SEC_SEGMENT_ADDR; + .xbl_sec : { // XBL_SEC nested ELF + . = .; + "./xbl_sec.elf" + } :xbl_sec + + . = CONFIG_PLATFORM_ELFENTRY; + + .data : { + *(.data*) + } :data +} -- 2.53.0
