powerpc: wii.dts: Expose HW_SRNPROT on this platform

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This Hollywood register isn’t properly understood, but can allow or
reject access to the SRAM, which we need to set for RTC usage if it
isn’t previously set correctly beforehand.

See https://wiibrew.org/wiki/Hardware/Hollywood_Registers#HW_SRNPROT

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211215175501.6761-4-linkmauve@linkmauve.fr

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Emmanuel Gil Peyrot 2021-12-15 18:54:59 +01:00 • committed by Alexandre Belloni

parent 322539a014

commit 5479618e1e

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arch/powerpc/boot/dts/wii.dts

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