[PATCH] mpc83xx: Don't allow W and G bits in IBATs

[Tom Rini]

On Fri, Jan 27, 2023 at 02:51:06PM +0100, Christophe Leroy wrote:

> The "Programming Environments Manual for 32-Bit Implementations of the
> PowerPC™ Architecture" says "W and G bits are not defined for IBAT
> registers. Attempting to write to these bits causes boundedly-undefined
> results"
> 
> The "e300 Power Architecture™ Core Family Reference Manual" says the
> same: "Neither the W or G bits of the IBAT registers should be set.
> Attempting to write to these bits causes boundedly-undefined results."
> 
> Remove the possibility to set those bytes.
> 
> Fixes: 30915ab95d9 ("mpc83xx: Migrate BATS config to Kconfig")
> Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>
> Cc: Mario Six <mario.six at gdsys.cc>

Applied to u-boot/master, thanks!

-- 
Tom
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