On Wed, Mar 30, 2016 at 07:35:18PM +0200, Gregory CLEMENT wrote: > From: Marcin Wojtas <mw@xxxxxxxxxxxx> > > Armada 3700 SoC comprise a single XOR engine compliant with the ones used > in older Marvell SoC's like Armada XP or 38x. The only thing that neededs s/neededs/needs/ > modification is the Mbus configuration, which has to be done on two > levels: global and in device. The first one is inherited from the > bootlader. The latter can be opened in a default way, leaving > arbitration to the bus controller. Hence filled mbus_dram_target_info > structure is not needed. > > Patch "dmaengine: mv_xor: optimize performance by using a subset > of the XOR channels" introduced limitation for using XOR engines and > channels vs number of available CPU's. Those contstraints do not however > fit Armada 3700 architecture with two possible CPU's and single, > dual-channel engine. Hence in this commit an adjustment for setting > maximum available channels is added. > > This patch enables XOR access to DRAM by opening default window to 4GB > space with specific attribute. > > Signed-off-by: Marcin Wojtas <mw@xxxxxxxxxxxx> > Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/dma/mv-xor.txt | 3 +- > drivers/dma/mv_xor.c | 56 +++++++++++++++++++++--- > 2 files changed, 51 insertions(+), 8 deletions(-) > > diff --git a/Documentation/devicetree/bindings/dma/mv-xor.txt b/Documentation/devicetree/bindings/dma/mv-xor.txt > index 276ef815ef32..900328d28231 100644 > --- a/Documentation/devicetree/bindings/dma/mv-xor.txt > +++ b/Documentation/devicetree/bindings/dma/mv-xor.txt > @@ -1,7 +1,8 @@ > * Marvell XOR engines > > Required properties: > -- compatible: Should be "marvell,orion-xor" or "marvell,armada-380-xor" > +- compatible: Should be "marvell,orion-xor", "marvell,armada-380-xor" > + or "marvell,armada-3700-xor". Reformatting to 1 per line would be better. Otherwise, Acked-by: Rob Herring <robh@xxxxxxxxxx> > - reg: Should contain registers location and length (two sets) > the first set is the low registers, the second set the high > registers for the XOR engine. -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
