On 4/28/2014 2:07 PM, yegorslists@xxxxxxxxxxxxxx wrote:
From: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx>
This patch creates unique DMA channels for the second USB
interface, otherwise the second USB interface is not usable
at all.
MUSB_DMA_NUM_CHANNELS is 15, so if you pass any dma-names > 15 (>
rx15/tx15),
the dma_controller_create in musb_core.c fails and it falls back to PIO
mode.
Signed-off-by: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/am33xx.dtsi | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 07f283c..e04cbbc 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -548,12 +548,12 @@
&cppi41dma 26 1 &cppi41dma 27 1
&cppi41dma 28 1 &cppi41dma 29 1>;
dma-names =
- "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7",
- "rx8", "rx9", "rx10", "rx11", "rx12", "rx13",
- "rx14", "rx15",
- "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7",
- "tx8", "tx9", "tx10", "tx11", "tx12", "tx13",
- "tx14", "tx15";
+ "rx16", "rx17", "rx18", "rx19", "rx20", "rx21", "rx22",
+ "rx23", "rx24", "rx25", "rx26", "rx27", "rx28",
+ "rx29", "rx30",
+ "tx16", "tx17", "tx18", "tx19", "tx20", "tx21", "tx22",
+ "tx23", "tx24", "tx25", "tx26", "tx27", "tx28",
+ "tx29", "tx30";
};
cppi41dma: dma-controller@47402000 {
--
-George
--
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