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| Started by | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| First post | 2016-08-24 08:10 +0200 |
| Last post | 2016-08-25 23:10 +0200 |
| Articles | 2 — 1 participant |
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Re: [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33 Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-08-24 08:10 +0200
Re: [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33 Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-08-25 23:10 +0200
| From | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| Date | 2016-08-24 08:10 +0200 |
| Subject | Re: [PATCH] ARM: dts: sun8i: add NAND controller node for A23/A33 |
| Message-ID | <s9zxT-6Gr-1@gated-at.bofh.it> |
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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
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| From | Maxime Ripard <maxime.ripard@free-electrons.com> |
|---|---|
| Date | 2016-08-25 23:10 +0200 |
| Message-ID | <saa4p-6jm-1@gated-at.bofh.it> |
| In reply to | #1469095 |
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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
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