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IMX6Q can not link up PCIE device-TW6869

Question asked by 翔李 on May 27, 2015
Latest reply on May 28, 2015 by igorpadykov

hi,

 

1:when the IMX6Q  booting,it can not link up the PCI device-TW6869,the log is follow:

 

Bluetooth: Core ver 2.16

NET: Registered protocol family 31

Bluetooth: HCI device and connection manager initialized

Bluetooth: HCI socket layer initialized

Bluetooth: L2CAP socket layer initialized

Bluetooth: SCO socket layer initialized

cfg80211: Calling CRDA to update world regulatory domain

pureg-dummy: no parameters

Switching to clocksource mxc_timer1

imx6q-pcie 1ffc000.pcie: missing *config* reg space

imx6q-pcie 1ffc000.pcie: phy link never came up

imx6q-pcie 1ffc000.pcie: failed to initialize host

NET: Registered protocol family 2

TCP established hash table entries: 8192 (order: 4, 65536 bytes)

TCP bind hash table entries: 8192 (order: 4, 65536 bytes)

TCP: Hash tables configured (established 8192 bind 8192)

TCP: reno registered

UDP hash table entries: 512 (order: 2, 16384 bytes)

 

2:when booting,IMX6Q can send PCIE_CLK and TX to TW6869,but the TW6869 can only output 240mV PCIE data to IMX6Q's PCIE_RX,then,IMX6Q stop the P[CIE_CLK and TX to TW6869,and logout fail.

 

the affix includes sch.

 

 

Chinese:

 

您好,

 

1:我们现在使用IMX6Q连接一个外部的PCIE芯片TW6869,IMX6Q在boot中提示不能LINK UPPCIE设备,如下:

imx6q-pcie 1ffc000.pcie: phy link never came up

imx6q-pcie 1ffc000.pcie: failed to initialize host

 

2:IMX6Q启动后,会有个瞬间,IMX6Q发送PCIE CLK和TX数据给TW6869,我们的板子TW6869会发个240mV的直流电平出来给IMX6Q的PCIE_RX(感觉正常的情况应该是TW6869发送有摆幅交流信号的PCIE数据给IMX6Q),之后BOOT提示不能LINK UP外设TW6869,之后IMX6Q就停止发送PCIE CLK和TX。

 

 

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