This was introduced in ARM trusted firmware in the commit
c76631c52b0b1550ff182c177555485700274314 ("rockchip: include hdcp.bin
and declare hdcp key decryption handler").
The hdcp.bin file contains code as it is included inside one of the
arm-trusted-firmware drivers with the following code:
__asm__(
".pushsection .text.hdcp_handler, \"ax\", %progbits\n"
".global hdcp_handler\n"
".balign 4\n"
"hdcp_handler:\n"
".incbin \"" __XSTRING(HDCPFW) "\"\n"
".type hdcp_handler, %function\n"
".size hdcp_handler, .- hdcp_handler\n"
".popsection\n"
);
The same file that contains the above code has the following copyright header:
* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
This conflicts with the message of the commit mentioned above:
For some reason, HDCP key decrytion can't open source in ATF, so we
build it as hdcp.bin. Besides declare the handler for decrypting.
and we also have missing corresponding source code.
Because of the lack of source code, and the fact that GNU Boot doesn't
support computers with RK3399 yet, it's easier to remove the hdcp.bin
firmware than to pursue other ways to fix the issue.
Reported-by: Leah Rowe <info@minifree.org>
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
neox: fixed "file file" typo in commit message
Acked-by: Adrien Bourmault <neox@gnu.org>
Denis 'GNUtoo' Carikli
51330f456c
