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* [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data
@ 2016-02-21 18:06 Alexander Kurz
  2016-02-21 18:06 ` [PATCH 2/3] edb9302 eth: privide proper phy config Alexander Kurz
                   ` (3 more replies)
  0 siblings, 4 replies; 7+ messages in thread
From: Alexander Kurz @ 2016-02-21 18:06 UTC (permalink / raw)
  To: barebox; +Cc: Alexander Kurz

Passing phy configuration to the ep93xx_eth driver was not supported yet
and will be added with this patch. When no pdata is passed, the probably
broken default of phy_addr = 0 will be used to maintain compatibility
with the previous implementation.

Signed-off-by: Alexander Kurz <akurz@blala.de>
---
 drivers/net/ep93xx.c | 14 ++++++++++++--
 drivers/net/ep93xx.h |  2 ++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ep93xx.c b/drivers/net/ep93xx.c
index 90c12fc..d2458eb 100644
--- a/drivers/net/ep93xx.c
+++ b/drivers/net/ep93xx.c
@@ -38,6 +38,7 @@
 #include <linux/types.h>
 #include <mach/ep93xx-regs.h>
 #include <linux/phy.h>
+#include <ep93xx_eth.h>
 #include "ep93xx.h"
 
 #define EP93XX_MAX_PKT_SIZE    1536
@@ -203,8 +204,8 @@ static int ep93xx_eth_open(struct eth_device *edev)
 
 	pr_debug("+ep93xx_eth_open\n");
 
-	ret = phy_device_connect(edev, &priv->miibus, 0, NULL,
-				 0, PHY_INTERFACE_MODE_NA);
+	ret = phy_device_connect(edev, &priv->miibus, priv->phy_addr, NULL,
+				 0, priv->interface);
 	if (ret)
 		return ret;
 
@@ -482,6 +483,7 @@ static int ep93xx_eth_set_ethaddr(struct eth_device *edev,
 
 static int ep93xx_eth_probe(struct device_d *dev)
 {
+	struct ep93xx_eth_platform_data *pdata = (struct ep93xx_eth_platform_data *)dev->platform_data;
 	struct eth_device *edev;
 	struct ep93xx_eth_priv *priv;
 	int ret = -1;
@@ -504,6 +506,14 @@ static int ep93xx_eth_probe(struct device_d *dev)
 	edev->set_ethaddr = ep93xx_eth_set_ethaddr;
 	edev->parent = dev;
 
+	if (pdata) {
+		priv->interface = pdata->xcv_type;
+		priv->phy_addr = pdata->phy_addr;
+	} else {
+		priv->interface = PHY_INTERFACE_MODE_NA;
+		priv->phy_addr = 0;
+	}
+
 	priv->miibus.read = ep93xx_phy_read;
 	priv->miibus.write = ep93xx_phy_write;
 	priv->miibus.parent = dev;
diff --git a/drivers/net/ep93xx.h b/drivers/net/ep93xx.h
index 89451b8..32ae57f 100644
--- a/drivers/net/ep93xx.h
+++ b/drivers/net/ep93xx.h
@@ -137,6 +137,8 @@ struct ep93xx_eth_priv {
 	struct tx_descriptor_queue	tx_dq;
 	struct tx_status_queue		tx_sq;
 
+	int				phy_addr;
+	phy_interface_t			interface;
 	struct mii_bus miibus;
 };
 
-- 
2.1.4


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^ permalink raw reply	[flat|nested] 7+ messages in thread

* [PATCH 2/3] edb9302 eth: privide proper phy config
  2016-02-21 18:06 [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Alexander Kurz
@ 2016-02-21 18:06 ` Alexander Kurz
  2016-02-21 18:06 ` [PATCH 3/3] net ep93xx mii: do not supress MII preamble transmission Alexander Kurz
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 7+ messages in thread
From: Alexander Kurz @ 2016-02-21 18:06 UTC (permalink / raw)
  To: barebox; +Cc: Alexander Kurz

The evaluation boards EDB9302 and  Olimex-CS-E9302 both use a
KS8721BL transciever in default strapping which is phy_addr=1

Signed-off-by: Alexander Kurz <akurz@blala.de>
---
 arch/arm/boards/edb93xx/edb93xx.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boards/edb93xx/edb93xx.c b/arch/arm/boards/edb93xx/edb93xx.c
index c314320..4146abf 100644
--- a/arch/arm/boards/edb93xx/edb93xx.c
+++ b/arch/arm/boards/edb93xx/edb93xx.c
@@ -27,10 +27,16 @@
 #include <malloc.h>
 #include <generated/mach-types.h>
 #include <mach/ep93xx-regs.h>
+#include <ep93xx_eth.h>
 #include "edb93xx.h"
 
 #define DEVCFG_U1EN (1 << 18)
 
+static struct ep93xx_eth_platform_data ep93xx_eth_info = {
+        .xcv_type = PHY_INTERFACE_MODE_MII,
+        .phy_addr = 1,
+};
+
 static int ep93xx_mem_init(void)
 {
 	arm_add_mem_device("ram0", CONFIG_EP93XX_SDRAM_BANK0_BASE,
@@ -70,7 +76,7 @@ static int ep93xx_devices_init(void)
 	 * CS line 6, data width is 16 bit
 	 */
 	add_generic_device("ep93xx_eth", DEVICE_ID_DYNAMIC, NULL, 0, 0, IORESOURCE_MEM,
-			NULL);
+			&ep93xx_eth_info);
 
 	armlinux_set_architecture(MACH_TYPE);
 
-- 
2.1.4


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^ permalink raw reply	[flat|nested] 7+ messages in thread

* [PATCH 3/3] net ep93xx mii: do not supress MII preamble transmission
  2016-02-21 18:06 [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Alexander Kurz
  2016-02-21 18:06 ` [PATCH 2/3] edb9302 eth: privide proper phy config Alexander Kurz
@ 2016-02-21 18:06 ` Alexander Kurz
  2016-02-23  8:03 ` [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Sascha Hauer
  2016-02-24  8:04 ` Sascha Hauer
  3 siblings, 0 replies; 7+ messages in thread
From: Alexander Kurz @ 2016-02-21 18:06 UTC (permalink / raw)
  To: barebox; +Cc: Alexander Kurz

PHY like the ks8721bl used on the edb9302 and similare evaluation boards
will initially not respond to the ep93xx_phy_read/write functions when
the MII-preamble is supressed. The supression is switched on by default
and must be switched off by clearing bit 8, see also EP93xx Users guide.
Removing the orphaned MII_SUPPRESS_PREAMBLE config option, note:
setting MII_SUPPRESS_PREAMBLE would actually enable the preamble transmission.

Signed-off-by: Alexander Kurz <akurz@blala.de>
---
 drivers/net/ep93xx.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ep93xx.c b/drivers/net/ep93xx.c
index d2458eb..226a3c6 100644
--- a/drivers/net/ep93xx.c
+++ b/drivers/net/ep93xx.c
@@ -599,14 +599,12 @@ static int ep93xx_phy_read(struct mii_bus *bus, int phy_addr, int phy_reg)
 	pr_debug("+ep93xx_phy_read\n");
 
 	/*
-	 * Save the current SelfCTL register value.  Set MAC to suppress
+	 * Save the current SelfCTL register value.  Set MAC to send
 	 * preamble bits.  Wait for any previous MII command to complete
 	 * before issuing the new command.
 	 */
 	self_ctl = readl(&regs->selfctl);
-#if defined(CONFIG_MII_SUPPRESS_PREAMBLE) /* TODO */
 	writel(self_ctl & ~(1 << 8), &regs->selfctl);
-#endif	/* defined(CONFIG_MII_SUPPRESS_PREAMBLE) */
 
 	while (readl(&regs->miists) & MIISTS_BUSY)
 		; /* noop */
@@ -642,14 +640,12 @@ static int ep93xx_phy_write(struct mii_bus *bus, int phy_addr,
 	pr_debug("+ep93xx_phy_write\n");
 
 	/*
-	 * Save the current SelfCTL register value.  Set MAC to suppress
+	 * Save the current SelfCTL register value.  Set MAC to send
 	 * preamble bits.  Wait for any previous MII command to complete
 	 * before issuing the new command.
 	 */
 	self_ctl = readl(&regs->selfctl);
-#if defined(CONFIG_MII_SUPPRESS_PREAMBLE) /* TODO */
 	writel(self_ctl & ~(1 << 8), &regs->selfctl);
-#endif	/* defined(CONFIG_MII_SUPPRESS_PREAMBLE) */
 
 	while (readl(&regs->miists) & MIISTS_BUSY)
 		; /* noop */
-- 
2.1.4


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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data
  2016-02-21 18:06 [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Alexander Kurz
  2016-02-21 18:06 ` [PATCH 2/3] edb9302 eth: privide proper phy config Alexander Kurz
  2016-02-21 18:06 ` [PATCH 3/3] net ep93xx mii: do not supress MII preamble transmission Alexander Kurz
@ 2016-02-23  8:03 ` Sascha Hauer
  2016-02-24  8:04 ` Sascha Hauer
  3 siblings, 0 replies; 7+ messages in thread
From: Sascha Hauer @ 2016-02-23  8:03 UTC (permalink / raw)
  To: Alexander Kurz; +Cc: barebox

On Sun, Feb 21, 2016 at 07:06:28PM +0100, Alexander Kurz wrote:
> Passing phy configuration to the ep93xx_eth driver was not supported yet
> and will be added with this patch. When no pdata is passed, the probably
> broken default of phy_addr = 0 will be used to maintain compatibility
> with the previous implementation.
> 
> Signed-off-by: Alexander Kurz <akurz@blala.de>
> ---
>  drivers/net/ep93xx.c | 14 ++++++++++++--
>  drivers/net/ep93xx.h |  2 ++
>  2 files changed, 14 insertions(+), 2 deletions(-)

Applied all, thanks.

I wouldn't have thought EP93xx is still actively used :)

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data
  2016-02-21 18:06 [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Alexander Kurz
                   ` (2 preceding siblings ...)
  2016-02-23  8:03 ` [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Sascha Hauer
@ 2016-02-24  8:04 ` Sascha Hauer
  2016-02-24 20:07   ` Alexander Kurz
  3 siblings, 1 reply; 7+ messages in thread
From: Sascha Hauer @ 2016-02-24  8:04 UTC (permalink / raw)
  To: Alexander Kurz; +Cc: barebox

Hi Alexander,

On Sun, Feb 21, 2016 at 07:06:28PM +0100, Alexander Kurz wrote:
> Passing phy configuration to the ep93xx_eth driver was not supported yet
> and will be added with this patch. When no pdata is passed, the probably
> broken default of phy_addr = 0 will be used to maintain compatibility
> with the previous implementation.
> 
> Signed-off-by: Alexander Kurz <akurz@blala.de>
> ---
>  drivers/net/ep93xx.c | 14 ++++++++++++--
>  drivers/net/ep93xx.h |  2 ++
>  2 files changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ep93xx.c b/drivers/net/ep93xx.c
> index 90c12fc..d2458eb 100644
> --- a/drivers/net/ep93xx.c
> +++ b/drivers/net/ep93xx.c
> @@ -38,6 +38,7 @@
>  #include <linux/types.h>
>  #include <mach/ep93xx-regs.h>
>  #include <linux/phy.h>
> +#include <ep93xx_eth.h>

This file is missing. Forgot to git add it?
While at it, could you move it to include/net/ please?

Thanks
 Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data
  2016-02-24  8:04 ` Sascha Hauer
@ 2016-02-24 20:07   ` Alexander Kurz
  2016-02-25  8:43     ` Sascha Hauer
  0 siblings, 1 reply; 7+ messages in thread
From: Alexander Kurz @ 2016-02-24 20:07 UTC (permalink / raw)
  To: Sascha Hauer; +Cc: barebox

[-- Attachment #1: Type: TEXT/PLAIN, Size: 1628 bytes --]

Hi Sascha,
 I have attached a fixed version of Patch 1 and 2.

 Sorry for sending an incomplete patch,
 thanks, Alexander

On Wed, 24 Feb 2016, Sascha Hauer wrote:

> Hi Alexander,
> 
> On Sun, Feb 21, 2016 at 07:06:28PM +0100, Alexander Kurz wrote:
> > Passing phy configuration to the ep93xx_eth driver was not supported yet
> > and will be added with this patch. When no pdata is passed, the probably
> > broken default of phy_addr = 0 will be used to maintain compatibility
> > with the previous implementation.
> > 
> > Signed-off-by: Alexander Kurz <akurz@blala.de>
> > ---
> >  drivers/net/ep93xx.c | 14 ++++++++++++--
> >  drivers/net/ep93xx.h |  2 ++
> >  2 files changed, 14 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/net/ep93xx.c b/drivers/net/ep93xx.c
> > index 90c12fc..d2458eb 100644
> > --- a/drivers/net/ep93xx.c
> > +++ b/drivers/net/ep93xx.c
> > @@ -38,6 +38,7 @@
> >  #include <linux/types.h>
> >  #include <mach/ep93xx-regs.h>
> >  #include <linux/phy.h>
> > +#include <ep93xx_eth.h>
> 
> This file is missing. Forgot to git add it?
> While at it, could you move it to include/net/ please?
> 
> Thanks
>  Sascha
> 
> -- 
> Pengutronix e.K.                           |                             |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
> 
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
> 

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: Type: TEXT/x-diff; name=0001-EP93xx-eth-allow-passing-of-phy-config-via-platform-.patch, Size: 3569 bytes --]

From df439a5ef8af4d04a6f92df6b50bef5bb7f8d383 Mon Sep 17 00:00:00 2001
From: Alexander Kurz <akurz@blala.de>
Date: Sun, 21 Feb 2016 18:03:30 +0100
Subject: [PATCH 1/4] EP93xx eth: allow passing of phy config via platform data

Passing phy configuration to the ep93xx_eth driver was not supported yet
and will be added with this patch. When no pdata is passed, the probably
broken default of phy_addr = 0 will be used to maintain compatibility
with the previous implementation.

Signed-off-by: Alexander Kurz <akurz@blala.de>
---
 drivers/net/ep93xx.c     | 14 ++++++++++++--
 drivers/net/ep93xx.h     |  2 ++
 include/net/ep93xx_eth.h | 26 ++++++++++++++++++++++++++
 3 files changed, 40 insertions(+), 2 deletions(-)
 create mode 100644 include/net/ep93xx_eth.h

diff --git a/drivers/net/ep93xx.c b/drivers/net/ep93xx.c
index 90c12fc..ef534c0 100644
--- a/drivers/net/ep93xx.c
+++ b/drivers/net/ep93xx.c
@@ -38,6 +38,7 @@
 #include <linux/types.h>
 #include <mach/ep93xx-regs.h>
 #include <linux/phy.h>
+#include <net/ep93xx_eth.h>
 #include "ep93xx.h"
 
 #define EP93XX_MAX_PKT_SIZE    1536
@@ -203,8 +204,8 @@ static int ep93xx_eth_open(struct eth_device *edev)
 
 	pr_debug("+ep93xx_eth_open\n");
 
-	ret = phy_device_connect(edev, &priv->miibus, 0, NULL,
-				 0, PHY_INTERFACE_MODE_NA);
+	ret = phy_device_connect(edev, &priv->miibus, priv->phy_addr, NULL,
+				 0, priv->interface);
 	if (ret)
 		return ret;
 
@@ -482,6 +483,7 @@ static int ep93xx_eth_set_ethaddr(struct eth_device *edev,
 
 static int ep93xx_eth_probe(struct device_d *dev)
 {
+	struct ep93xx_eth_platform_data *pdata = (struct ep93xx_eth_platform_data *)dev->platform_data;
 	struct eth_device *edev;
 	struct ep93xx_eth_priv *priv;
 	int ret = -1;
@@ -504,6 +506,14 @@ static int ep93xx_eth_probe(struct device_d *dev)
 	edev->set_ethaddr = ep93xx_eth_set_ethaddr;
 	edev->parent = dev;
 
+	if (pdata) {
+		priv->interface = pdata->xcv_type;
+		priv->phy_addr = pdata->phy_addr;
+	} else {
+		priv->interface = PHY_INTERFACE_MODE_NA;
+		priv->phy_addr = 0;
+	}
+
 	priv->miibus.read = ep93xx_phy_read;
 	priv->miibus.write = ep93xx_phy_write;
 	priv->miibus.parent = dev;
diff --git a/drivers/net/ep93xx.h b/drivers/net/ep93xx.h
index 89451b8..32ae57f 100644
--- a/drivers/net/ep93xx.h
+++ b/drivers/net/ep93xx.h
@@ -137,6 +137,8 @@ struct ep93xx_eth_priv {
 	struct tx_descriptor_queue	tx_dq;
 	struct tx_status_queue		tx_sq;
 
+	int				phy_addr;
+	phy_interface_t			interface;
 	struct mii_bus miibus;
 };
 
diff --git a/include/net/ep93xx_eth.h b/include/net/ep93xx_eth.h
new file mode 100644
index 0000000..0fb11d0
--- /dev/null
+++ b/include/net/ep93xx_eth.h
@@ -0,0 +1,26 @@
+/*
+ * (C) Copyright 2016 Alexander Kurz <akurz@blala.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __NET_EP93XX_ETH_H
+#define __NET_EP93XX_ETH_H
+
+#include <linux/phy.h>
+
+struct ep93xx_eth_platform_data {
+	phy_interface_t	xcv_type;
+	int		phy_addr;
+};
+
+#endif /* __NET_EP93XX_ETH_H */
-- 
2.1.4


[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #3: Type: TEXT/x-diff; name=0002-edb9302-eth-privide-proper-phy-config.patch, Size: 1415 bytes --]

From 69d1cdd4cf512a11f2446a03151c9afbd84020bc Mon Sep 17 00:00:00 2001
From: Alexander Kurz <akurz@blala.de>
Date: Sun, 21 Feb 2016 18:17:33 +0100
Subject: [PATCH 2/4] edb9302 eth: privide proper phy config

The evaluation boards EDB9302 and  Olimex-CS-E9302 both use a
KS8721BL transciever in default strapping which is phy_addr=1

Signed-off-by: Alexander Kurz <akurz@blala.de>
---
 arch/arm/boards/edb93xx/edb93xx.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boards/edb93xx/edb93xx.c b/arch/arm/boards/edb93xx/edb93xx.c
index c314320..0fb93d2 100644
--- a/arch/arm/boards/edb93xx/edb93xx.c
+++ b/arch/arm/boards/edb93xx/edb93xx.c
@@ -27,10 +27,16 @@
 #include <malloc.h>
 #include <generated/mach-types.h>
 #include <mach/ep93xx-regs.h>
+#include <net/ep93xx_eth.h>
 #include "edb93xx.h"
 
 #define DEVCFG_U1EN (1 << 18)
 
+static struct ep93xx_eth_platform_data ep93xx_eth_info = {
+        .xcv_type = PHY_INTERFACE_MODE_MII,
+        .phy_addr = 1,
+};
+
 static int ep93xx_mem_init(void)
 {
 	arm_add_mem_device("ram0", CONFIG_EP93XX_SDRAM_BANK0_BASE,
@@ -70,7 +76,7 @@ static int ep93xx_devices_init(void)
 	 * CS line 6, data width is 16 bit
 	 */
 	add_generic_device("ep93xx_eth", DEVICE_ID_DYNAMIC, NULL, 0, 0, IORESOURCE_MEM,
-			NULL);
+			&ep93xx_eth_info);
 
 	armlinux_set_architecture(MACH_TYPE);
 
-- 
2.1.4


[-- Attachment #4: Type: text/plain, Size: 149 bytes --]

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^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data
  2016-02-24 20:07   ` Alexander Kurz
@ 2016-02-25  8:43     ` Sascha Hauer
  0 siblings, 0 replies; 7+ messages in thread
From: Sascha Hauer @ 2016-02-25  8:43 UTC (permalink / raw)
  To: Alexander Kurz; +Cc: barebox

On Wed, Feb 24, 2016 at 09:07:17PM +0100, Alexander Kurz wrote:
> Hi Sascha,
>  I have attached a fixed version of Patch 1 and 2.
> 
>  Sorry for sending an incomplete patch,
>  thanks, Alexander

Updated the patches, thanks

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2016-02-25  8:44 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-02-21 18:06 [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Alexander Kurz
2016-02-21 18:06 ` [PATCH 2/3] edb9302 eth: privide proper phy config Alexander Kurz
2016-02-21 18:06 ` [PATCH 3/3] net ep93xx mii: do not supress MII preamble transmission Alexander Kurz
2016-02-23  8:03 ` [PATCH 1/3] EP93xx eth: allow passing of phy config via platform data Sascha Hauer
2016-02-24  8:04 ` Sascha Hauer
2016-02-24 20:07   ` Alexander Kurz
2016-02-25  8:43     ` Sascha Hauer

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