On 2/16/23 15:41, Tom Rini wrote:
On Thu, Feb 16, 2023 at 03:21:43PM +0100, Marek Vasut wrote:
On 2/16/23 15:13, Tom Rini wrote:
On Thu, Feb 16, 2023 at 03:04:35PM +0100, Marek Vasut wrote:
On 2/16/23 04:36, Tom Rini wrote:
On this platform spl_board_init is a call to arch_misc_init which is a
no-op, so drop the CONFIG options.

Cc: Marek Vasut <ma...@denx.de>
Cc: Olaf Mandel <o.man...@menlosystems.com>

btw. put those under --- next time, that way they don't end up in commit
message.

Er, did the kernel change expected behavior here?

Er ... wasn't that the case for like a year now ?

Is that a yes then?

I got repeated flak for sticking a wall of Cc: into the commit message recently, so I guess that's a yes .

Signed-off-by: Tom Rini <tr...@konsulko.com>

If CAAM is enabled, ARCH_MISC_INIT brings up the CAAM , and this is needed
in SPL for U-Boot authentication using HABv4 . I believe that is why Verdin
spl.c calls it.

Then I'll put doing a follow-up on SPL_BOARD_INIT (which is another
option that shouldn't be directly asked, but select'd when used) for
that case. It fails to build in this series because CAAM isn't enabled
so there's no arch_misc_init.

Just call the arch_board_init unconditionally, the CAAM inside of it is
already conditional, so the compiler should inline the result if CAAM is
disabled.

It doesn't, and only maybe does with LTO. But we also shouldn't be
enabling unused hooks. It sounds like imx8m should follow the other
platforms that have an spl_board_init under arch/ ?

spl_BOARD_init shouldn't be in arch in the first place, but I think what needs to be done here in the long run is, set DM_FLAG_PROBE_AFTER_BIND on CAAM in SPL if CAAM is enabled. That can be done somewhere in arch/arm/mach-imx/imx8m early boot code. And then let DM bring the CAAM up. I think that's the way to go with cleaning up the CAAM and spl_board_init part, without breaking support for HABv4.

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