From: Stefan Wahren <stefan.wahren-eS4NqCHxEME@public.gmane.org>
To: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Eric Anholt <eric-WhKQ6XTQaPysTnJN9+BGXg@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Florian Fainelli
<f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH 1/4] ARM: dts: bcm283x: Add dtsi for OTG mode
Date: Sun, 21 May 2017 18:44:36 +0200 [thread overview]
Message-ID: <1495385079-3697-2-git-send-email-stefan.wahren@i2se.com> (raw)
In-Reply-To: <1495385079-3697-1-git-send-email-stefan.wahren-eS4NqCHxEME@public.gmane.org>
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-eS4NqCHxEME@public.gmane.org>
---
arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
create mode 100644 arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
new file mode 100644
index 0000000..e7d217c
--- /dev/null
+++ b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
@@ -0,0 +1,10 @@
+&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>;
+};
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: stefan.wahren@i2se.com (Stefan Wahren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/4] ARM: dts: bcm283x: Add dtsi for OTG mode
Date: Sun, 21 May 2017 18:44:36 +0200 [thread overview]
Message-ID: <1495385079-3697-2-git-send-email-stefan.wahren@i2se.com> (raw)
In-Reply-To: <1495385079-3697-1-git-send-email-stefan.wahren@i2se.com>
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>
---
arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
create mode 100644 arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
new file mode 100644
index 0000000..e7d217c
--- /dev/null
+++ b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
@@ -0,0 +1,10 @@
+&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>;
+};
--
2.7.4
next prev parent reply other threads:[~2017-05-21 16:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-21 16:44 [PATCH 0/4] ARM: dts: bcm2835-rpi-zero: Enable OTG mode Stefan Wahren
2017-05-21 16:44 ` Stefan Wahren
2017-05-21 16:44 ` [PATCH 3/4] " Stefan Wahren
2017-05-21 16:44 ` Stefan Wahren
[not found] ` <1495385079-3697-1-git-send-email-stefan.wahren-eS4NqCHxEME@public.gmane.org>
2017-05-21 16:44 ` Stefan Wahren [this message]
2017-05-21 16:44 ` [PATCH 1/4] ARM: dts: bcm283x: Add dtsi for " Stefan Wahren
2017-05-21 16:44 ` [PATCH 2/4] ARM: dts: bcm283x: Add generic USB PHY Stefan Wahren
2017-05-21 16:44 ` Stefan Wahren
2017-05-21 16:44 ` [PATCH 4/4] ARM: bcm2835_defconfig: Enable serial & ethernet USB gadget support Stefan Wahren
2017-05-21 16:44 ` Stefan Wahren
2017-06-01 8:38 ` [PATCH 0/4] ARM: dts: bcm2835-rpi-zero: Enable OTG mode Stefan Wahren
2017-06-01 8:38 ` Stefan Wahren
[not found] ` <542130487.90500.1496306283902-7tX72C7vayboQLBSYMtkGA@public.gmane.org>
2017-06-09 7:05 ` Stefan Wahren
2017-06-09 7:05 ` Stefan Wahren
[not found] ` <6a45fcd8-0d88-bc17-6432-d38fe771dc80-eS4NqCHxEME@public.gmane.org>
2017-06-12 23:10 ` Eric Anholt
2017-06-12 23:10 ` Eric Anholt
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