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| H A D | ehci-mx6.c | a9aeb7ee7411a74291458916cde7fa28efeed4e6 Thu Oct 10 13:09:35 UTC 2019 Igor Opaniuk <igor.opaniuk@toradex.com> UPSTREAM: usb: ehci-mx6: Fix bus enumeration for iMX7 SoCs
This fixes the issues with calculation of controller indexes in
ehci_usb_bind() for iMX7, as USB controllers on iMX7 SoCs aren't
placed next to each other, and their addresses incremented by 0x10000.
Example of USB nodes for iMX7S/D:
usbotg1: usb@30b10000 {
compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
reg = <0x30b10000 0x200>;
^^^^^^^^^^
....
usbotg2: usb@30b20000 {
compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
reg = <0x30b20000 0x200>;
^^^^^^^^^^
....
usbh: usb@30b30000 {
compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
reg = <0x30b30000 0x200>;
^^^^^^^^^^
....
Which was leading to usb enumeration issues:
Colibri iMX7 # usb start
starting USB...
Bus usb@30b10000: USB EHCI 1.00
Bus usb@30b20000: probe failed, error -22
scanning bus usb@30b10000 for devices... 1 USB Device(s) found
scanning usb for storage devices... 0 Storage Device(s) found
Change-Id: I2c458dfa9e590ba054f63bb1e7ce1fad525eb56c
Fixes: 501547cec1("usb: ehci-mx6: Fix bus enumeration for DM case")
Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 1198a104d37b10064cd90f36d472787d549eda02)
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