From d168c2cf81ab4218df4c9b43e4483b6340bcfc9d Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Thu, 26 Apr 2018 20:04:48 +0200 Subject: [PATCH] ar71xx: Ubiquiti Airmax M: add relocate-kernel to invalidate cache Some Ubiquiti U-boot versions, in particular the "U-Boot 1.1.4.2-s956 (Jun 10 2015 - 10:54:50)" found with AirOS 5.6, do not correctly flush the caches for the whole kernel address range after decompressing the kernel image, leading to hard to debug boot failures, depending on kernel version and configuration. As a workaround, prepend the relocate-kernels loader, which will invalidate the caches after moving the kernel to the correct load address. Reported-by: Andreas Ziegler Signed-off-by: Matthias Schiffer --- target/linux/ar71xx/image/generic-ubnt.mk | 1 + 1 file changed, 1 insertion(+) diff --git a/target/linux/ar71xx/image/generic-ubnt.mk b/target/linux/ar71xx/image/generic-ubnt.mk index d5e3aa5860..07c0295504 100644 --- a/target/linux/ar71xx/image/generic-ubnt.mk +++ b/target/linux/ar71xx/image/generic-ubnt.mk @@ -52,6 +52,7 @@ define Device/ubnt-xm DEVICE_PACKAGES += kmod-usb-ohci UBNT_TYPE := XM UBNT_CHIP := ar7240 + KERNEL := kernel-bin | patch-cmdline | relocate-kernel | lzma | uImage lzma endef define Device/ubnt-xw