Difference between revisions of "Zynq development issues"
From ElphelWiki
| Line 50: | Line 50: | ||
===b: unable to init phy: -110=== | ===b: unable to init phy: -110=== | ||
| − | * [http://www.wiki.xilinx.com/Zynq+Linux+USB+Device+Driver Zynq Linux USB Device Driver] - typo | + | * [http://www.wiki.xilinx.com/Zynq+Linux+USB+Device+Driver Zynq Linux USB Device Driver] - typo in docs but it's correct in the [http://www.wiki.xilinx.com/Zynq+Releases released image] |
* note: order in the device tree does not matter | * note: order in the device tree does not matter | ||
* corrected the device tree record (s/viewport/view-port/): | * corrected the device tree record (s/viewport/view-port/): | ||
| Line 61: | Line 61: | ||
===Links=== | ===Links=== | ||
| − | * [http://www.wiki.xilinx.com/Zynq+Linux+USB+Device+Driver Zynq Linux USB Device Driver] - typo came from here | + | * [http://www.wiki.xilinx.com/Zynq+Linux+USB+Device+Driver Zynq Linux USB Device Driver] - typo came from here. |
| − | * [https://forums.xilinx.com/t5/Embedded-Linux/USB-boot-with-Linux-2015-2-build/td-p/643868 discussion] | + | * [https://forums.xilinx.com/t5/Embedded-Linux/USB-boot-with-Linux-2015-2-build/td-p/643868 A discussion]. |
* [https://forums.xilinx.com/t5/Embedded-Linux/USB-works-in-device-mode-but-not-in-host-mode/td-p/679097 forgot the contents, probably unrelated] | * [https://forums.xilinx.com/t5/Embedded-Linux/USB-works-in-device-mode-but-not-in-host-mode/td-p/679097 forgot the contents, probably unrelated] | ||
Revision as of 20:56, 12 April 2016
Contents
ISSUE 1: USB
Description
- Stopped working after switching from 3.10 to 4.0 kernel
Config
- kernel: 4.0 (linux-xlnx 468329e7fac2b22e76897fbd40532cc0884ded2a)
- new device tree record:
...
ps7_usb_0: ps7-usb@e0002000 {
clocks = <&clkc 28>;
compatible = "xlnx,zynq-usb-2.20a", "chipidea,usb2";
reg = <0xe0002000 0x1000>;
interrupt-parent = <&ps7_scugic_0>;
interrupts = <0 21 4>;
dr_mode = "host";
phy_type = "ulpi";
usb-phy = <&usb_phy0>;
} ;
...
} ;
...
usb_phy0: phy0{
compatible = "ulpi-phy";
#phy-cells = <0>;
reg = <0xe0002000 0x1000>;
viewport = <0x170>;
} ;
- .config
CONFIG_USB_ULPI=y CONFIG_USB_ULPI_VIEWPORT=y CONFIG_USB_CHIPIDEA_DEBUG=y CONFIG_USB_GPIO_VBUS=n CONFIG_USB_OTG=n /*do not care if dr_mode = "host";*/ CONFIG_USB_GADGET=n
Log
- dmesg:
[ 1.035759] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.042319] usbcore: registered new interface driver usb-storage [ 1.073619] e0002000.ps7-usb supply vbus not found, using dummy regulator [ 1.103560] Registering platform device 'ci_hdrc.0'. Parent at e0002000.ps7-usb [ 1.114806] ci_hdrc ci_hdrc.0: ChipIdea HDRC found, revision: 22, lpm: 0; cap: f00d4100 op: f00d4140 [ 1.136023] ci_hdrc ci_hdrc.0: unable to init phy: -110 [ 1.141232] ci_hdrc: probe of ci_hdrc.0 failed with error -110
a: vbus not found
- the problem is not critical
b: unable to init phy: -110
- Zynq Linux USB Device Driver - typo in docs but it's correct in the released image
- note: order in the device tree does not matter
- corrected the device tree record (s/viewport/view-port/):
usb_phy0: phy0{
compatible = "ulpi-phy";
#phy-cells = <0>;
reg = <0xe0002000 0x1000>;
view-port = <0x170>;
} ;
Links
- Zynq Linux USB Device Driver - typo came from here.
- A discussion.
- forgot the contents, probably unrelated
