[U-Boot-Users] FEC in mcf52x2

[wroberts1 at cox.net]

Yea that fec_t structure works fine. However the FEC
driver was setting RCR[MAX_FL] to zero, so it was only
getting rx frame length violation. I had to do this:

#define OPT_FRAME_SIZE (PKT_MAXBUF_SIZE << 16)

    fecp->fec_r_cntrl = OPT_FRAME_SIZE | FEC_RCNTRL_MII_MODE | FEC_RCNTRL_DRT;

its fast enough.  takes under four seconds to transfer
this 1.8Mbyte image.

> From: Zachary Landau <kapheine at gmail.com>
> Date: 2005/04/05 Tue PM 12:19:45 EDT
> To: u-boot-users at lists.sourceforge.net
> Subject: Re: [U-Boot-Users] FEC in mcf52x2
> 
> On Apr 4, 2005 7:06 PM, wroberts1 at cox.net <wroberts1 at cox.net> wrote:
> > I was trying to do an tftp transfer from u-boot-1.1.2 on an
> > mcf5282.  The fec driver in there does not seem to be
> > functioning.   Is this driver functional on the mcf5272c3?
> 
> The FEC structure in immap_5282.h is wrong.  Try this:
> 
> typedef struct fec {
>     uint    res1;
>     uint    fec_ievent;
>     uint    fec_imask;
>     uint    res2;
>     uint    fec_r_des_active;
>     uint    fec_x_des_active;
>     uint    res3[3];
>     uint    fec_ecntrl;
>     uint    res4[6];
>     uint    fec_mii_data;
>     uint    fec_mii_speed;
> 
>     uint    res5[7];
>     uint    fec_mibc;
>     uint    res6[7];
>     uint    fec_r_cntrl;
>     uint    res7[15];
>     uint    fec_x_cntrl;
>     uint    res8[7];
>     uint    fec_addr_low;   uint    fec_addr_high;
>     uint    fec_opd;
>     uint    res9[10];
>     uint    fec_ihash_table_high;
>     uint    fec_ihash_table_low;
> 
>     uint    fec_ghash_table_high;
>     uint    fec_ghash_table_low;
>     uint    res10[7];
>     uint    fec_tfwr;
>     uint    res11;
>     uint    fec_r_bound;
>     uint    fec_r_fstart;
>     uint    res12[11];
>     uint    fec_r_des_start;
>     uint    fec_x_des_start;
>     uint    fec_r_buff_size;
> } fec_t;
> 
> 
> 
> -- 
> Zachary P. Landau <kapheine at gmail.com>
> 
> 
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