[PATCH] arm64: Fix SCTLR_EL1 initialisation

Will Deacon will.deacon at arm.com
Wed Dec 17 09:39:16 PST 2014

On Wed, Dec 17, 2014 at 03:50:21PM +0000, Suzuki K. Poulose wrote:
> From: "Suzuki K. Poulose" <suzuki.poulose at arm.com>
> We initialise the SCTLR_EL1 value by read-modify-writeback
> of the desired bits, leaving the other bits (including reserved
> bits(RESx)) untouched. However, sometimes the boot monitor could
> leave garbage values in the RESx bits which could have different
> implications. This patch makes sure that all the bits, including
> the RESx bits, are set to the proper state, except for the
> 'endianness' control bits, EE(25) & E0E(24)- which are set early
> in the el2_setup.
> Updated the state of the Bit[6] in the comment to RES0 in the
> comment.
> Signed-off-by: Suzuki K. Poulose <suzuki.poulose at arm.com>
> Cc: Will Deacon <will.deacon at arm.com>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> ---

Looks good to me:

  Acked-by: Will Deacon <will.deacon at arm.com>

Is this 3.19 material, or simply a cleanup/being cautious?


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