[PATCH 4/6] IP100A Change search phy addr start form 0

[PATCH 4/6] IP100A Change search phy addr start form 0

[Jesse Huang]

From: Jesse Huang <jesse@icplus.com.tw>

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) {
-- 
1.3.GIT

Re: [PATCH 4/6] IP100A Change search phy addr start form 0

[Jeff Garzik]

Jesse Huang wrote:
> From: Jesse Huang <jesse@icplus.com.tw>
> 
> 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

Re: [PATCH 4/6] IP100A Change search phy addr start form 0

[Jesse Huang]

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" <jgarzik@pobox.com>
To: "Jesse Huang" <jesse@icplus.com.tw>
Cc: <linux-kernel@vger.kernel.org>; <netdev@vger.kernel.org>;
<akpm@osdl.org>
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 <jesse@icplus.com.tw>
>
> 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