Hi Jeff:
In IP100A, phy address is 0. Because IP100A is a single chip, the in
chip phy address is 0. so, we must search phy address for 0.
Jesse
----- Original Message -----
From: "Jeff Garzik" <[email protected]>
To: "Jesse Huang" <[email protected]>
Cc: <[email protected]>; <[email protected]>;
<[email protected]>
Sent: Friday, August 18, 2006 7:20 PM
Subject: Re: [PATCH 4/6] IP100A Change search phy addr start form 0
Jesse Huang wrote:
> From: Jesse Huang <[email protected]>
>
> Change search phy addr start form 0
>
> Change Logs:
> Change search phy addr start form 0
>
> ---
>
> drivers/net/sundance.c | 5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
>
> 212cd4ffa21a57300eae4254bf02e5b33b96f544
> diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
> index 2bde1b3..f63871a 100755
> --- a/drivers/net/sundance.c
> +++ b/drivers/net/sundance.c
> @@ -21,7 +21,7 @@
> */
>
> #define DRV_NAME "sundance"
> -#define DRV_VERSION "1.01+LK1.13"
> +#define DRV_VERSION "1.01+LK1.14"
> #define DRV_RELDATE "04-Aug-2006"
>
>
> @@ -559,8 +559,9 @@ #endif
> /*
> * It seems some phys doesn't deal well with address 0 being accessed
> * first, so leave address zero to the end of the loop (32 & 31).
> + * for IP100A the phy should start from 0
> */
> - for (phy = 1; phy <= 32 && phy_idx < MII_CNT; phy++) {
> + for (phy = 0; phy <= 32 && phy_idx < MII_CNT; phy++) {
> int phyx = phy & 0x1f;
> int mii_status = mdio_read(dev, phyx, MII_BMSR);
> if (mii_status != 0xffff && mii_status != 0x0000) {
For IP100A, is the phy built into the chip?
For a standard DP83840[A] phy, phy #0 is a "ghost" which mirrors another
phy. For this reason, we scan phy #0 last.
Does the above code not work?
Jeff
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