diff options
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a1c3ea972d5..f38e275bea3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1752,6 +1752,25 @@ config ZBOOT_ROM_MMCIF which in turn loads the rest the kernel image to RAM using the MMCIF hardware block. +config ARM_APPENDED_DTB + bool "Use appended device tree blob to zImage" + depends on OF && !ZBOOT_ROM + help + With this option, the boot code will look for a device tree binary + (dtb) appended to zImage + (e.g. cat zImage <filename>.dtb > zImage_w_dtb). + +config ARM_ATAG_DTB_COMPAT + bool "Supplement the appended DTB with traditional ATAG information" + depends on ARM_APPENDED_DTB + help + Some old bootloaders can't be updated to a DTB capable one, yet + they provide ATAGs with memory configuration, the ramdisk address, + the kernel cmdline string, etc. To allow a device tree enabled + kernel to be used with such bootloaders, this option allows + zImage to extract the information from the ATAG list and store it + at run time into the appended DTB. + config CMDLINE string "Default kernel command string" default "" |