soc: imx: gpcv2: handle additional power-down bits in handshake register

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Some of the i.MX8MQ domains have an additional control bit in the PU
handshake (HSK) register. Documentation about this bit is a bit sparse
at the moment, but it seems that it controls a power-down request to
the AMBA domain bridge (ADB-400) attached to those domains.

As the documentation doesn't desribe the usage of this bit yet, handle
it in the same way as done in the ATF implementation.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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Lucas Stach 2018-12-17 16:31:51 +01:00 • committed by Shawn Guo

parent bfeffd1552

commit b798d5a1b0

1 changed files with 15 additions and 1 deletions

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drivers/soc/imx/gpcv2.c

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