diff for duplicates of <4EB84E24.9000000@firmworks.com> diff --git a/a/1.txt b/N1/1.txt index 2de02c1..68e39f8 100644 --- a/a/1.txt +++ b/N1/1.txt @@ -1,7 +1,8 @@ On 11/7/2011 10:09 AM, Robert Sciuk wrote: > In my continuing saga of dev/tree driver development, I have a problem which might be obvious to those who have more experience in such matters. > -> I'm a bit perplexed on the tree nodes for the localbus/simplebus nodes for my FPGA. CS0 is reserved for booting (from NOR flash as required by our design), CS1 is tied to an FPGA which will always be present. CS2 actually is tied to both of two (optional) fpga's, which have been previously mapped by U-Boot (BRn/ORn configuration). Should I specify a ranges command as follows? This seems somehow wrong, to me, and I'm wondering if there is an alternative representation which would work better in this case. If you recall, the programming control lines are handled on the I2C bus, via a gpio controller. In an ideal world, the optional FPE1 and FPE2 fpgas will have the identical .bts stream, and should support the option to program both simultaneously, or each individually, but I'm at a loss as how to best represent this in the tree. +> I'm a bit perplexed on the tree nodes for the localbus/simplebus nodes for my FPGA. CS0 is reserved for booting (from NOR flash as required by our design), CS1 is tied to an FPGA which will always be present. CS2 actually is tied to both of two (optional) fpga's, which have been previously mapped by U-Boot (BRn/ORn configuration). Should I specify a ranges command as follows? This seems somehow wrong, to me, and I'm wondering if there is an alternative representation which would work better in this case. If you recall, the programming control lines are handled on the I2C bus, via a gpio controller. In an ideal world, the optional FPE1 and FPE2 fpgas will have the identical .bts stream, and should support the option to program both simultaneously, or each individually, but I'm at a + loss as how to best represent this in the tree. I would be tempted to add another level of hierarchy as a container for the two FPEs on CS2. diff --git a/a/content_digest b/N1/content_digest index 8c73bcb..4fbe774 100644 --- a/a/content_digest +++ b/N1/content_digest @@ -14,7 +14,8 @@ "On 11/7/2011 10:09 AM, Robert Sciuk wrote:\n" "> In my continuing saga of dev/tree driver development, I have a problem which might be obvious to those who have more experience in such matters.\n" ">\n" - "> I'm a bit perplexed on the tree nodes for the localbus/simplebus nodes for my FPGA. CS0 is reserved for booting (from NOR flash as required by our design), CS1 is tied to an FPGA which will always be present. CS2 actually is tied to both of two (optional) fpga's, which have been previously mapped by U-Boot (BRn/ORn configuration). Should I specify a ranges command as follows? This seems somehow wrong, to me, and I'm wondering if there is an alternative representation which would work better in this case. If you recall, the programming control lines are handled on the I2C bus, via a gpio controller. In an ideal world, the optional FPE1 and FPE2 fpgas will have the identical .bts stream, and should support the option to program both simultaneously, or each individually, but I'm at a loss as how to best represent this in the tree.\n" + "> I'm a bit perplexed on the tree nodes for the localbus/simplebus nodes for my FPGA. CS0 is reserved for booting (from NOR flash as required by our design), CS1 is tied to an FPGA which will always be present. CS2 actually is tied to both of two (optional) fpga's, which have been previously mapped by U-Boot (BRn/ORn configuration). Should I specify a ranges command as follows? This seems somehow wrong, to me, and I'm wondering if there is an alternative representation which would work better in this case. If you recall, the programming control lines are handled on the I2C bus, via a gpio controller. In an ideal world, the optional FPE1 and FPE2 fpgas will have the identical .bts stream, and should support the option to program both simultaneously, or each individually, but I'm at a \n" + " loss as how to best represent this in the tree.\n" "\n" "I would be tempted to add another level of hierarchy as a container for \n" "the two FPEs on CS2.\n" @@ -82,4 +83,4 @@ "> https://lists.ozlabs.org/listinfo/devicetree-discuss\n" > -988a53ac097fd0db92829cdcbf6754204b80a2183f27fbfed945dc2d443ee23d +9a44850599109067c022a848e22dcc6fa55982dd466b1a4fd351157e6f3854c8
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