On Mon, 26 Aug 2019 10:42:52 -0500, Dinh Nguyen said: > The primecell controller on some SoCs, i.e. SoCFPGA, is held in reset by > default. Until recently, the DMA controller was brought out of reset by the > bootloader(i.e. U-Boot). But a recent change in U-Boot, the peripherals > that are not used are held in reset and are left to Linux to bring them > out of reset. > > Add a mechanism for getting the reset property and de-assert the primecell > module from reset if found. This is a not a hard fail if the reset properti > is not present in the device tree node, so the driver will continue to > probe. Does this DTRT for both old and new U-Boots? My naive reading of this patch says on an old U-Boot, we end up attempting to bring it out of reset even though they had already been brought out.
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