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ARM: dts: bcm283x: Add dtsi for OTG mode

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The Raspberry Pi Zero also supports OTG mode. So provide a dtsi file
to configure the USB interface accordingly. The fifo sizes are optimized
for device endpoint 6 and 7 with the maximum of 768.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Stefan Wahren 2017-05-21 18:44:36 +02:00 committed by Eric Anholt
parent a19adf8d86
commit 1aa1d858f5
1 changed files with 10 additions and 0 deletions
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arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi Normal file
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&usb {
dr_mode = "otg";
g-rx-fifo-size = <256>;
g-np-tx-fifo-size = <32>;
/*
* According to dwc2 the sum of all device EP
* fifo sizes shouldn't exceed 3776 bytes.
*/
g-tx-fifo-size = <256 256 512 512 512 768 768>;
};