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Groups > linux.kernel > #1602576 > unrolled thread

[PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB

Started bySteve Lin <steven.lin1@broadcom.com>
First post2017-03-16 16:50 +0100
Last post2017-03-16 20:00 +0100
Articles 4 — 4 participants

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  [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB Steve Lin <steven.lin1@broadcom.com> - 2017-03-16 16:50 +0100
    Re: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified  in DTB Florian Fainelli <f.fainelli@gmail.com> - 2017-03-16 17:50 +0100
      Re: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified  in DTB Jon Mason <jon.mason@broadcom.com> - 2017-03-16 18:20 +0100
    Re: [PATCH] net: ethernet: bgmac: Allow MAC address to be  specified in DTB David Miller <davem@davemloft.net> - 2017-03-16 20:00 +0100

#1602576 — [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB

FromSteve Lin <steven.lin1@broadcom.com>
Date2017-03-16 16:50 +0100
Subject[PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB
Message-ID<tlFP4-pI-11@gated-at.bofh.it>
Allows the BCMA version of the bgmac driver to obtain MAC address
from the device tree.  If no MAC address is specified there, then
the previous behavior (obtaining MAC address from SPROM) is
used.

Signed-off-by: Steve Lin <steven.lin1@broadcom.com>
---
 drivers/net/ethernet/broadcom/bgmac-bcma.c | 39 ++++++++++++++++++------------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma.c b/drivers/net/ethernet/broadcom/bgmac-bcma.c
index cf15b7e..6322594 100644
--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
@@ -11,6 +11,7 @@
 #include <linux/bcma/bcma.h>
 #include <linux/brcmphy.h>
 #include <linux/etherdevice.h>
+#include <linux/of_net.h>
 #include "bgmac.h"
 
 static inline bool bgmac_is_bcm4707_family(struct bcma_device *core)
@@ -114,7 +115,7 @@ static int bgmac_probe(struct bcma_device *core)
 	struct ssb_sprom *sprom = &core->bus->sprom;
 	struct mii_bus *mii_bus;
 	struct bgmac *bgmac;
-	u8 *mac;
+	const u8 *mac = NULL;
 	int err;
 
 	bgmac = bgmac_alloc(&core->dev);
@@ -127,21 +128,27 @@ static int bgmac_probe(struct bcma_device *core)
 
 	bcma_set_drvdata(core, bgmac);
 
-	switch (core->core_unit) {
-	case 0:
-		mac = sprom->et0mac;
-		break;
-	case 1:
-		mac = sprom->et1mac;
-		break;
-	case 2:
-		mac = sprom->et2mac;
-		break;
-	default:
-		dev_err(bgmac->dev, "Unsupported core_unit %d\n",
-			core->core_unit);
-		err = -ENOTSUPP;
-		goto err;
+	if (bgmac->dev->of_node)
+		mac = of_get_mac_address(bgmac->dev->of_node);
+
+	/* If no MAC address assigned via device tree, check SPROM */
+	if (!mac) {
+		switch (core->core_unit) {
+		case 0:
+			mac = sprom->et0mac;
+			break;
+		case 1:
+			mac = sprom->et1mac;
+			break;
+		case 2:
+			mac = sprom->et2mac;
+			break;
+		default:
+			dev_err(bgmac->dev, "Unsupported core_unit %d\n",
+				core->core_unit);
+			err = -ENOTSUPP;
+			goto err;
+		}
 	}
 
 	ether_addr_copy(bgmac->net_dev->dev_addr, mac);
-- 
2.1.0

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#1602645 — Re: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB

FromFlorian Fainelli <f.fainelli@gmail.com>
Date2017-03-16 17:50 +0100
SubjectRe: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB
Message-ID<tlGL8-14c-11@gated-at.bofh.it>
In reply to#1602576
On 03/16/2017 08:48 AM, Steve Lin wrote:
> Allows the BCMA version of the bgmac driver to obtain MAC address
> from the device tree.  If no MAC address is specified there, then
> the previous behavior (obtaining MAC address from SPROM) is
> used.
> 
> Signed-off-by: Steve Lin <steven.lin1@broadcom.com>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>

PS: you might want to specify which tree this applies to by using [PATCH
net-next] or [PATCH net] in the subject, see the netdev-FAQ.txt for
details:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/networking/netdev-FAQ.txt

> ---
>  drivers/net/ethernet/broadcom/bgmac-bcma.c | 39 ++++++++++++++++++------------
>  1 file changed, 23 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma.c b/drivers/net/ethernet/broadcom/bgmac-bcma.c
> index cf15b7e..6322594 100644
> --- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
> +++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
> @@ -11,6 +11,7 @@
>  #include <linux/bcma/bcma.h>
>  #include <linux/brcmphy.h>
>  #include <linux/etherdevice.h>
> +#include <linux/of_net.h>
>  #include "bgmac.h"
>  
>  static inline bool bgmac_is_bcm4707_family(struct bcma_device *core)
> @@ -114,7 +115,7 @@ static int bgmac_probe(struct bcma_device *core)
>  	struct ssb_sprom *sprom = &core->bus->sprom;
>  	struct mii_bus *mii_bus;
>  	struct bgmac *bgmac;
> -	u8 *mac;
> +	const u8 *mac = NULL;
>  	int err;
>  
>  	bgmac = bgmac_alloc(&core->dev);
> @@ -127,21 +128,27 @@ static int bgmac_probe(struct bcma_device *core)
>  
>  	bcma_set_drvdata(core, bgmac);
>  
> -	switch (core->core_unit) {
> -	case 0:
> -		mac = sprom->et0mac;
> -		break;
> -	case 1:
> -		mac = sprom->et1mac;
> -		break;
> -	case 2:
> -		mac = sprom->et2mac;
> -		break;
> -	default:
> -		dev_err(bgmac->dev, "Unsupported core_unit %d\n",
> -			core->core_unit);
> -		err = -ENOTSUPP;
> -		goto err;
> +	if (bgmac->dev->of_node)
> +		mac = of_get_mac_address(bgmac->dev->of_node);
> +
> +	/* If no MAC address assigned via device tree, check SPROM */
> +	if (!mac) {
> +		switch (core->core_unit) {
> +		case 0:
> +			mac = sprom->et0mac;
> +			break;
> +		case 1:
> +			mac = sprom->et1mac;
> +			break;
> +		case 2:
> +			mac = sprom->et2mac;
> +			break;
> +		default:
> +			dev_err(bgmac->dev, "Unsupported core_unit %d\n",
> +				core->core_unit);
> +			err = -ENOTSUPP;
> +			goto err;
> +		}
>  	}
>  
>  	ether_addr_copy(bgmac->net_dev->dev_addr, mac);
> 


-- 
Florian

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#1602680 — Re: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB

FromJon Mason <jon.mason@broadcom.com>
Date2017-03-16 18:20 +0100
SubjectRe: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB
Message-ID<tlHea-1vE-17@gated-at.bofh.it>
In reply to#1602645
On Thu, Mar 16, 2017 at 12:39 PM, Florian Fainelli <f.fainelli@gmail.com> wrote:
> On 03/16/2017 08:48 AM, Steve Lin wrote:
>> Allows the BCMA version of the bgmac driver to obtain MAC address
>> from the device tree.  If no MAC address is specified there, then
>> the previous behavior (obtaining MAC address from SPROM) is
>> used.
>>
>> Signed-off-by: Steve Lin <steven.lin1@broadcom.com>
>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
>
> PS: you might want to specify which tree this applies to by using [PATCH
> net-next] or [PATCH net] in the subject, see the netdev-FAQ.txt for
> details:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/networking/netdev-FAQ.txt

I believe he wants this in net-next

Acked-by: Jon Mason <jon.mason@broadcom.com>

>> ---
>>  drivers/net/ethernet/broadcom/bgmac-bcma.c | 39 ++++++++++++++++++------------
>>  1 file changed, 23 insertions(+), 16 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma.c b/drivers/net/ethernet/broadcom/bgmac-bcma.c
>> index cf15b7e..6322594 100644
>> --- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
>> +++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
>> @@ -11,6 +11,7 @@
>>  #include <linux/bcma/bcma.h>
>>  #include <linux/brcmphy.h>
>>  #include <linux/etherdevice.h>
>> +#include <linux/of_net.h>
>>  #include "bgmac.h"
>>
>>  static inline bool bgmac_is_bcm4707_family(struct bcma_device *core)
>> @@ -114,7 +115,7 @@ static int bgmac_probe(struct bcma_device *core)
>>       struct ssb_sprom *sprom = &core->bus->sprom;
>>       struct mii_bus *mii_bus;
>>       struct bgmac *bgmac;
>> -     u8 *mac;
>> +     const u8 *mac = NULL;
>>       int err;
>>
>>       bgmac = bgmac_alloc(&core->dev);
>> @@ -127,21 +128,27 @@ static int bgmac_probe(struct bcma_device *core)
>>
>>       bcma_set_drvdata(core, bgmac);
>>
>> -     switch (core->core_unit) {
>> -     case 0:
>> -             mac = sprom->et0mac;
>> -             break;
>> -     case 1:
>> -             mac = sprom->et1mac;
>> -             break;
>> -     case 2:
>> -             mac = sprom->et2mac;
>> -             break;
>> -     default:
>> -             dev_err(bgmac->dev, "Unsupported core_unit %d\n",
>> -                     core->core_unit);
>> -             err = -ENOTSUPP;
>> -             goto err;
>> +     if (bgmac->dev->of_node)
>> +             mac = of_get_mac_address(bgmac->dev->of_node);
>> +
>> +     /* If no MAC address assigned via device tree, check SPROM */
>> +     if (!mac) {
>> +             switch (core->core_unit) {
>> +             case 0:
>> +                     mac = sprom->et0mac;
>> +                     break;
>> +             case 1:
>> +                     mac = sprom->et1mac;
>> +                     break;
>> +             case 2:
>> +                     mac = sprom->et2mac;
>> +                     break;
>> +             default:
>> +                     dev_err(bgmac->dev, "Unsupported core_unit %d\n",
>> +                             core->core_unit);
>> +                     err = -ENOTSUPP;
>> +                     goto err;
>> +             }
>>       }
>>
>>       ether_addr_copy(bgmac->net_dev->dev_addr, mac);
>>
>
>
> --
> Florian

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#1602782 — Re: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB

FromDavid Miller <davem@davemloft.net>
Date2017-03-16 20:00 +0100
SubjectRe: [PATCH] net: ethernet: bgmac: Allow MAC address to be specified in DTB
Message-ID<tlIMW-2t1-19@gated-at.bofh.it>
In reply to#1602576
From: Steve Lin <steven.lin1@broadcom.com>
Date: Thu, 16 Mar 2017 11:48:58 -0400

> Allows the BCMA version of the bgmac driver to obtain MAC address
> from the device tree.  If no MAC address is specified there, then
> the previous behavior (obtaining MAC address from SPROM) is
> used.
> 
> Signed-off-by: Steve Lin <steven.lin1@broadcom.com>

Applied to net-next, thanks.

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