Hi All,
I need to perform some soc specific fixups in dtb binary before passing it to
kernel.
And also I want to perform these fixups from efi shell, so that I don't have to
set any PCD for fdt device path.
I can achieve my purpose by placing a hook in
" EmbeddedPkg/Drivers/FdtPlatformDxe/FdtPlatform.c "
if (fdt_check_header ((VOID*)(UINTN)FdtBlobBase) != 0 ||
(UINTN)fdt_totalsize ((VOID*)(UINTN)FdtBlobBase) > FdtBlobSize) {
DEBUG ((EFI_D_ERROR, "InstallFdt() - loaded FDT binary image seems
corrupt\n"));
@@ -108,12 +107,13 @@ InstallFdt (
}
+ FdtCpuSetup((VOID **)&FdtBlobBase, &FdtBlobSize);
//
// Store the FDT as Runtime Service Data to prevent the Kernel from
// overwritting its data.
//
And calling setfdt -i fs0:fdt.dtb
Command from shell.
I know this is not a correct way of performing dtb fixups.
Is there any alternative to achieve same?
Or I need to write my own driver and shell command for performing dtb fixups?
Thanks,
Meenakshi
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