本帖最后由 missiler 于 2017-5-25 00:08 编辑
我先前使用IMX6Q商业级进行开发,换到工业级核心板后,发现无法识别USB Host接口(fsl-ehci.1),只能看到USB OTG接口(fsl-ehci.0),这是为什么?商业版的启动过程中提示:
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1 fsl-ehci fsl-ehci.0: irq 75, io base 0x02184000 fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00 hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected add wake up source irq 72 fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 2 fsl-ehci fsl-ehci.1: irq 72, io base 0x02184200 fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00 hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port detected Initializing USB Mass Storage driver...
但工业级的只发现fsl-ehci.0就结束了
是引脚USB_H1_OC,USB_H1_PWR_EN的问题还是说ehci.1休眠了,还是内核配置问题
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