2 commits

Author	SHA1	Message	Date
Christophe Leroy	f1dc0daf7a	mpc83xx: Don't allow W and G bits in IBATs ... 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: 30915ab95d ("mpc83xx: Migrate BATS config to Kconfig") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Mario Six <mario.six@gdsys.cc>	2023-05-01 18:59:33 -04:00
Mario Six	30915ab95d	mpc83xx: Migrate BATS config to Kconfig ... The BATs (block address translation registers) determine the initial memory window mappings. Hence, they must be known at compile time and cannot be implemented in the DT mechanism. Configuration of this crucial variable should still be somewhat comfortable. Hence, make its fields configurable in Kconfig, and assemble the final value from these. Signed-off-by: Mario Six <mario.six@gdsys.cc>	2019-05-21 07:52:33 +02:00