diff options
| author | Christophe Leroy | 2023-01-27 14:51:06 +0100 |
|---|---|---|
| committer | Tom Rini | 2023-05-01 18:59:33 -0400 |
| commit | f1dc0daf7a7c73e525d52698ab914b8f833bed00 (patch) | |
| tree | bb74d5b3ec7c6c2bd488a579c65af9ecd59e73d3 /configs/tuge1_defconfig | |
| parent | 50f64026f7a4c2d0a101c93916e01782e4fbbe7f (diff) | |
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: 30915ab95d9 ("mpc83xx: Migrate BATS config to Kconfig")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Mario Six <mario.six@gdsys.cc>
Diffstat (limited to 'configs/tuge1_defconfig')
| -rw-r--r-- | configs/tuge1_defconfig | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/configs/tuge1_defconfig b/configs/tuge1_defconfig index 8e5f1c605d1..c10b5c20a73 100644 --- a/configs/tuge1_defconfig +++ b/configs/tuge1_defconfig @@ -22,7 +22,6 @@ CONFIG_BAT0_BASE=0x00000000 CONFIG_BAT0_LENGTH_256_MBYTES=y CONFIG_BAT0_ACCESS_RW=y CONFIG_BAT0_ICACHE_INHIBITED=y -CONFIG_BAT0_ICACHE_GUARDED=y CONFIG_BAT0_DCACHE_INHIBITED=y CONFIG_BAT0_DCACHE_GUARDED=y CONFIG_BAT0_USER_MODE_VALID=y @@ -33,7 +32,6 @@ CONFIG_BAT1_BASE=0xE0000000 CONFIG_BAT1_LENGTH_4_MBYTES=y CONFIG_BAT1_ACCESS_RW=y CONFIG_BAT1_ICACHE_INHIBITED=y -CONFIG_BAT1_ICACHE_GUARDED=y CONFIG_BAT1_DCACHE_INHIBITED=y CONFIG_BAT1_DCACHE_GUARDED=y CONFIG_BAT1_USER_MODE_VALID=y |