Hi Rob,
Am 16.04.2018 um 22:43 schrieb Rob Herring:
On Fri, Apr 13, 2018 at 07:27:53PM +0200, Stefan Wahren wrote:
The Raspberry Pi 3 B+ has the following major differences compared
to the model 3 B:
* Microchip LAN7515 (Gigabit Ethernet)
* Cypress CYW43455 (802.11n/ac and BT 4.2)
We need to add the USB LAN chip so the bootloader can add the MAC address.
This is necessary because there ain't a EEPROM or a valid OTP.
Signed-off-by: Phil Elwell <phil@xxxxxxxxxxxxxxx>
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 108 +++++++++++++++++++++++++++++
arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi | 27 ++++++++
3 files changed, 136 insertions(+)
create mode 100644 arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
create mode 100644 arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
...
diff --git a/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi b/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
new file mode 100644
index 0000000..169203c
--- /dev/null
+++ b/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
Why the separate file? This can be shared?
this comes from the assumption the RPi 3 B+ won't be the only RPi board
with a LAN7515. Should i fold it in the dts file as long as we don't
have a second board?
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/ {
+ aliases {
+ ethernet0 = ðernet;
+ };
+};
+
+&usb {
+ usb1@1 {
+ compatible = "usb424,2514";
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ usb1_1@1 {
usb-port@1
+ compatible = "usb424,2514";
There's really 2 levels of hubs?
Yes, lsusb -t shows the following:
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc2/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 3, If 0, Class=Hub, Driver=hub/3p, 480M
|__ Port 2: Dev 5, If 0, Class=Human Interface Device,
Driver=usbhid, 1.5M
|__ Port 1: Dev 6, If 0, Class=Vendor Specific Class,
Driver=lan78xx, 480M
|__ Port 2: Dev 7, If 0, Class=Mass Storage,
Driver=usb-storage, 480M
|__ Port 3: Dev 4, If 0, Class=Human Interface Device,
Driver=usbhid, 1.5M
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet: usbether@1 {
ethernet@1
+ compatible = "usb424,7800";
+ reg = <1>;
+ };
+ };
+ };
+};
--
2.7.4
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