[U-Boot] FEC Clock

[Michael Nazzareno Trimarchi]

Hi



On 1 Feb. 2018 6:06 pm, "Fabio Estevam" <festevam at gmail.com> wrote:

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On Tue, Jan 30, 2018 at 6:40 AM, Mehmet Ali İPİN
<mehmet.ipin at pavotek.com.tr> wrote:
> Dear Estevam,
>
> I used GPIO 16 to generate the 25MHZ clock, using
enable_fec_anatop_clock(1,ENET_25MHZ), in ;
> board_eth_init() function, but got 50 MHz on GPIO_16;
>
> When I manually set the 0x20C_80E0 address(Analog ENET PLL Control
Register) 0x8018_2000 on u-boot terminal, I saw 25 MHz on GPIO_16. With
>
>         struct iomuxc *const iomuxc_regs2 = (struct iomuxc *)0x020c80e0;
>         setbits_le32(&iomuxc_regs2, 0x80182000);
>
> but still see 50 MHz.

I am not sure I follow, sorry.


mw.l address value
Works but do in the code does not work?

Please dump using me

Michael


>
> Are my register write (setbits_le32) function parameters correct?
> If correct, in which file and its function Should I set this
ENET_PLL_control register?

enable_fec_anatop_clock() is the function to configure ENET_PLL.
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