# Re: MPC82xx enet on SCC3

- From: Oliver Fuchs \<hidden\>
- Date: 2004-08-17 09:49:06 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2004/08/9394714
- Thread: https://ratatoskr.run/linuxppc-dev/2004/08/9394686/t.md

```text
From:           	Dan Malek <redacted>
>
> Apologies, I had FCC on the brain.
>
never mind

> > I have modified arch/ppc/config.in and arch/ppc/8260_io/enet.c so
> > that it fits to SCC1-4 w/o further modifications there.
The idea is to have some board specific defines within
arch/ppc/platforms/<board>.h

like this:
--snip--
/* defines for arch/ppc/8260_io/enet.c */

#define PB_ENET_RXD      ((uint)0x00020000)
#define PD_ENET_RXD      ((uint)0x00000000)

#define PB_ENET_TXD	     ((uint)0x00000000)
#define PD_ENET_TXD      ((uint)0x00000080)

#define PC_ENET_CLSN     ((uint)0x00100000)

#define PC_ENET_TXCLK    ((uint)0x00000020)
#define PC_ENET_RXCLK    ((uint)0x00000010)

#define PB_ENET_LBK      ((uint)0x00400000)


#define CMXSCR_RS3CS_CLK5  0x00002000	/* SCC3 Rx Clock Source CLK5 */
#define CMXSCR_TS3CS_CLK6  0x00000500	/* SCC3 Tx Clock Source CLK6 */

#define CMX_CLK_ROUTE	((uint)(CMXSCR_RS3CS_CLK5 | CMXSCR_TS3CS_CLK6))

/* #define SCC_ENET_PIN_ENABLE */
--snap--

mind the defines for RxD and TxD for both ports B and D
it's needed to decide which port is used
SCC_ENET_PIN_ENABLE could be used to setup LBK, FDE or DSQ

> Just send it to me and I'll get it into some source base :-)
>
here you are
It's tested for SCC3.


Best regards,
Oliver Fuchs

```

## Attachments

- [(unnamed)](https://ratatoskr.run/linuxppc-dev/2004/08/9394714/attachment/0) (text/plain, 6561 bytes)