* Re: [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33 [not found] <20160823135546.60179-1-icenowy@aosc.xyz> @ 2016-08-24 6:02 ` Maxime Ripard [not found] ` <16141472026895@web4j.yandex.ru> 0 siblings, 1 reply; 2+ messages in thread From: Maxime Ripard @ 2016-08-24 6:02 UTC (permalink / raw) To: Boris Brezillon, Icenowy Zheng Cc: Russell King, Chen-Yu Tsai, Rob Herring, Mark Rutland, devicetree, linux-arm-kernel, linux-kernel, linux-sunxi [-- Attachment #1: Type: text/plain, Size: 535 bytes --] Hi, On Tue, Aug 23, 2016 at 09:55:46PM +0800, Icenowy Zheng wrote: > A23/A33 has a NAND controller which can now be used properly. > > Add a device node for it. > > The DMA function cannot work because of changed DMA IP block, so it's > temporarily removed in the device node. However, with PIO mode it can still > work. What is preventing the NAND driver to work with DMA with the sun6i driver? Thanks, Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 819 bytes --] ^ permalink raw reply [flat|nested] 2+ messages in thread
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* Re: [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33 [not found] ` <16141472026895@web4j.yandex.ru> @ 2016-08-25 20:53 ` Maxime Ripard 0 siblings, 0 replies; 2+ messages in thread From: Maxime Ripard @ 2016-08-25 20:53 UTC (permalink / raw) To: Icenowy Zheng Cc: Boris Brezillon, Russell King, Chen-Yu Tsai, Rob Herring, Mark Rutland, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com [-- Attachment #1: Type: text/plain, Size: 875 bytes --] Hi, On Wed, Aug 24, 2016 at 04:21:35PM +0800, Icenowy Zheng wrote: > Hi Maxime, > > 24.08.2016, 14:02, "Maxime Ripard" <maxime.ripard@free-electrons.com>: > > Hi, > > > > On Tue, Aug 23, 2016 at 09:55:46PM +0800, Icenowy Zheng wrote: > >> A23/A33 has a NAND controller which can now be used properly. > >> > >> Add a device node for it. > >> > >> The DMA function cannot work because of changed DMA IP block, so it's > >> temporarily removed in the device node. However, with PIO mode it can still > >> work. > > > > What is preventing the NAND driver to work with DMA with the sun6i driver? > > It seems that under sun6i we should use dedicated rx and tx DMAs, but not a > "rxtx" DMA. Ah, I see. I just applied your patch, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 819 bytes --] ^ permalink raw reply [flat|nested] 2+ messages in thread
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2016-08-24 6:02 ` [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33 Maxime Ripard
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