Difference between revisions of "Zynq development issues"

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(→‎ISSUE 2: VSC330X)
 
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==Log==
+
==ISSUE 1: USB==
 +
===Description===
 +
* Stopped working after switching from 3.10 to 4.0 kernel
 +
===Config===
 +
* kernel: <b>4.0 (linux-xlnx 468329e7fac2b22e76897fbd40532cc0884ded2a)</b>
 +
* new device tree record:
 +
<font size='2'>
 +
...
 +
  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>;
 +
} ;
 +
</font>
 +
* .config
 +
<font size='2'>
 +
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 <b>dr_mode = "host";</b>*/
 +
CONFIG_USB_GADGET=n
 +
</font>
 +
 
 +
===Log===
 +
* dmesg:
 
<font size='2'>
 
<font size='2'>
 
  [    1.035759] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
 
  [    1.035759] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
 
  [    1.042319] usbcore: registered new interface driver usb-storage
 
  [    1.042319] usbcore: registered new interface driver usb-storage
−
  [    1.073619] e0002000.ps7-usb supply vbus not found, using dummy regulator
+
  <span style='color:red;'>[    1.073619] e0002000.ps7-usb supply vbus not found, using dummy regulator</span>
 
  [    1.103560] Registering platform device 'ci_hdrc.0'. Parent at e0002000.ps7-usb
 
  [    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
+
  <span style='color:red;'>[    1.114806] ci_hdrc ci_hdrc.0: ChipIdea HDRC found, revision: 22, lpm: 0; cap: f00d4100 op: f00d4140</span>
−
  [    1.136023] ci_hdrc ci_hdrc.0: unable to init phy: -110
+
  <span style='color:red;'>[    1.136023] ci_hdrc ci_hdrc.0: unable to init phy: -110</span>
−
  [    1.141232] ci_hdrc: probe of ci_hdrc.0 failed with error -110
+
  <span style='color:red;'>[    1.141232] ci_hdrc: probe of ci_hdrc.0 failed with error -110</span>
 +
</font>
 +
 
 +
===a: vbus not found===
 +
* the problem is not critical
 +
 
 +
===b: unable to init phy: -110===
 +
* [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
 +
* corrected the device tree record (s/viewport/view-port/):
 +
<font size='2'>
 +
  usb_phy0: phy0{
 +
    compatible = "ulpi-phy";
 +
    #phy-cells = <0>;
 +
    reg = <0xe0002000 0x1000>;
 +
    <b>view-port</b> = <0x170>;
 +
  } ;
 +
</font>
 +
 
 +
===Links===
 +
* [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 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]
 +
 
 +
 
 +
 
 +
==ISSUE 2: VSC330X==
 +
* Config and the kernel are the same as in ISSUE 1
 +
===Log===
 +
<font size='2'>
 +
* dmesg:
 +
[    1.069904] <span style='color:red'>vsc330x 0-0001: vsc330x_i2c_probe:841 error writing</span>
 +
[    1.075745] <span style='color:red'>vsc330x: probe of 0-0001 failed with error -5</span>
 
</font>
 
</font>
 +
 +
===Reason===
 +
* 10398 board, that has it, is not connected, that's it.

Latest revision as of 21:03, 12 April 2016

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

 usb_phy0: phy0{
   compatible = "ulpi-phy";
   #phy-cells = <0>;
   reg = <0xe0002000 0x1000>;
   view-port = <0x170>;
 } ;

Links


ISSUE 2: VSC330X

  • Config and the kernel are the same as in ISSUE 1

Log

  • dmesg:
[    1.069904] vsc330x 0-0001: vsc330x_i2c_probe:841 error writing
[    1.075745] vsc330x: probe of 0-0001 failed with error -5

Reason

  • 10398 board, that has it, is not connected, that's it.
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