[U-Boot] [RFC, PATCH v2] omap: Invalidate first page to avoid speculation

[Vincent Stehlé]

Albert Aribaud:
> To make this affect only some CPUs or even boards, you can define and use a
> weak function which would handle filling the page-table; the weak, default,
> function would fill table[0] like others, while OMAP5 would have a strong
> version which would clear table[0].

Hi Albert,

Thank you very much for your comments.

Here is "v2" of the patch, reworked to follow your advice. Comments are
welcome. I think it is now cleaner to split it in two patches:

  [PATCH 1/2] ARM: cache: introduce weak arm_setup_identity_mapping
  [PATCH 2/2] ARM: OMAP5: redefine arm_setup_identity_mapping

I picked the 'arm_setup_identity_mapping' name more or less arbitrarily, please
advise if not.

I verified this patch series on an OMAP5 HS device (with security) and on a GP
device (without security), and both work for me.

Best regards,

V.