Hi Geert, On Monday 04 August 2014 11:01:28 Geert Uytterhoeven wrote: > On Wed, Jul 16, 2014 at 12:45 AM, Laurent Pinchart wrote: > > Add references to the transmit and receive DMA channels in the four > > SDHI nodes. > > > > Signed-off-by: Laurent Pinchart > > <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> > > Acked-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > > but see below for a question (this also applies to other members of the > R-Car Gen 2 family)... > > > --- > > > > arch/arm/boot/dts/r8a7790.dtsi | 8 ++++++++ > > 1 file changed, 8 insertions(+) > > > > diff --git a/arch/arm/boot/dts/r8a7790.dtsi > > b/arch/arm/boot/dts/r8a7790.dtsi index 465008a..2ea3b2a 100644 > > --- a/arch/arm/boot/dts/r8a7790.dtsi > > +++ b/arch/arm/boot/dts/r8a7790.dtsi > > @@ -406,6 +410,8 @@ > > reg = <0 0xee140000 0 0x100>; > > interrupts = <0 167 IRQ_TYPE_LEVEL_HIGH>; > > clocks = <&mstp3_clks R8A7790_CLK_SDHI2>; > > + dmas = <&dmac0 0xc1>, <&dmac0 0xc2>; > > + dma-names = "tx", "rx"; > > cap-sd-highspeed; > > status = "disabled"; > > }; > > @@ -415,6 +421,8 @@ > > reg = <0 0xee160000 0 0x100>; > > interrupts = <0 168 IRQ_TYPE_LEVEL_HIGH>; > > clocks = <&mstp3_clks R8A7790_CLK_SDHI3>; > > + dmas = <&dmac0 0xd3>, <&dmac0 0xd4>; > > + dma-names = "tx", "rx"; > > cap-sd-highspeed; > > status = "disabled"; > > }; > > SDHI2 and SDHI3 actually have 2 sets of 2 (TX and RX) DMA channels: > the normal one, and the "C2" one. However, I didn't get any wiser about this > "C2" by browsing through the docs. I didn't either, so I've decided to ignore them for now. It's funny sometimes how life gets simpler when you selectively ignore information ;-) More seriously, if anyone has any information regarding what the "C2" channels are, that would be appreciated. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
