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author | Russell King <rmk+kernel@arm.linux.org.uk> | 2016-01-05 11:07:28 +0000 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2016-01-05 11:07:28 +0000 |
commit | 598bcc6ea6ec4032d2ace8b1b43d11b4708af072 (patch) | |
tree | 675a2b01617549b539a4dcb1aec7141798e1f324 /Documentation | |
parent | 0bed4b7aa02c06e05121875dc443295d55b9d91d (diff) | |
parent | e679660dbb8347f275fe5d83a5dd59c1fb6c8e63 (diff) |
Merge branches 'misc' and 'misc-rc6' into for-linus
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/arm/l2c2x0.txt | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/arm/l2c2x0.txt b/Documentation/devicetree/bindings/arm/l2c2x0.txt index 1c0435446ecc..fe0398c5c77b 100644 --- a/Documentation/devicetree/bindings/arm/l2c2x0.txt +++ b/Documentation/devicetree/bindings/arm/l2c2x0.txt @@ -68,12 +68,17 @@ Optional properties: disable if zero. - arm,prefetch-offset : Override prefetch offset value. Valid values are 0-7, 15, 23, and 31. -- arm,shared-override : The default behavior of the pl310 cache controller with - respect to the shareable attribute is to transform "normal memory - non-cacheable transactions" into "cacheable no allocate" (for reads) or - "write through no write allocate" (for writes). +- arm,shared-override : The default behavior of the L220 or PL310 cache + controllers with respect to the shareable attribute is to transform "normal + memory non-cacheable transactions" into "cacheable no allocate" (for reads) + or "write through no write allocate" (for writes). On systems where this may cause DMA buffer corruption, this property must be specified to indicate that such transforms are precluded. +- arm,parity-enable : enable parity checking on the L2 cache (L220 or PL310). +- arm,parity-disable : disable parity checking on the L2 cache (L220 or PL310). +- arm,outer-sync-disable : disable the outer sync operation on the L2 cache. + Some core tiles, especially ARM PB11MPCore have a faulty L220 cache that + will randomly hang unless outer sync operations are disabled. - prefetch-data : Data prefetch. Value: <0> (forcibly disable), <1> (forcibly enable), property absent (retain settings set by firmware) - prefetch-instr : Instruction prefetch. Value: <0> (forcibly disable), |