i.MX ProcessorsのトピックRe: TJA1100 in imx6 with Managed mode

TJA1100 in imx6 with Managed mode

fyspkid — Mon, 22 Aug 2016 02:20:19 GMT

Hi Community,

I am using TJA1100 Ethernet PHY in imx6q without any MCU and we need to set mode to Managed mode as a default.

As AH1310 application hints, I need to follow the steps of chapter 8 in this document to write TJA1100 driver in my imx6q kernel.

Can I follow the steps in AH1310 chapter 8 and the Linux PHY driver structure (such as Atheros PHY / at803x.c) in BSP source to create my own TJA1100 driver?

Because the steps in chapter 8 and the structure of Linux PHY driver seem different.

I am kinda new to this field, could you please help me or give me some advices ?

Best regards and many thanks in advance!

Re: TJA1100 in imx6 with Managed mode

igorpadykov — Mon, 22 Aug 2016 03:42:32 GMT

Hi timchen

you are right, one can use existing driver as reference when porting new

phy, please use nxp bsp on link below and attached Porting Guide Chapter 9

Porting the Ethernet Controller Driver

http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-processors/i.mx-6-processors/i.mx6qp/i.mx-6-series-software-and-development-tool-resources:IMX6_SW

Best regards

igor

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Re: TJA1100 in imx6 with Managed mode

fyspkid — Tue, 23 Aug 2016 08:13:52 GMT

Hi igorpadykov,

Thank you for your reply.

I still have two questions below, could you please help me to answer these questions:

1.As I read the document phy.txt which is in kernel_imx/Documentation/networking, I found that PHY Abstraction Layer has Generic PHY Driver. So can I use Generic PHY Driver as my TJA1100 driver when I use TJA1100 in managed mode?

2.Can I use this function: "genphy_read_status" in my phy driver to implement chapter "8.2.2 Status polling" in AH1310_TJA1100_ApplicationHints.pdf?

Many thanks in advance!!

Re: TJA1100 in imx6 with Managed mode

angelo_d — Mon, 19 Feb 2018 09:05:42 GMT

Hi Timoty,

i have the same need, TJA1100 with linux, did you succeed with generic_phy ? Do you know if there is now a day a "ready" phy driver ?

Thanks

angelo