On 2021/8/6 12:44, Heiko Schocher wrote:
This series fixes secure boot on imx8m based boards. Tim also detected this issue and the patches fixed on his hardware also the problem, see discussion here:
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.denx...
Problem is that the IVT header gets loaded to a memallocated buffer, but it needs to sit on memaddress coded in IVT header itself. This patchseries adds a weak function spl_load_simple_fit() in common spl code, which does not change current code behaviour.
Second patch than implements this weak function for imx based boards (if no IVT header is found on address which is passed to it, it does nothing).
I am not sure if this is the best solution, but it fixes a real bug, and may could be made clearer, if possible.
NXP downstream dropped malloc, with buf = board_spl_fit_buffer_addr(size, sectors, info->bl_len);
And this will use previous fixed address.
Regards, Peng.
Heiko Schocher (2): spl_fit. add hook to make fixes after fit header is loaded imx: spl: implement spl_load_simple_fit_fix_load
arch/arm/mach-imx/spl.c | 33 +++++++++++++++++++++++++++++++++ common/spl/spl_fit.c | 11 +++++++++++ include/spl.h | 8 ++++++++ 3 files changed, 52 insertions(+)