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* MAC address setting
@ 2011-07-28 10:05 Sascha Hauer
  2011-07-28 10:05 ` [PATCH 1/4] ARM i.MX IIM: Add a iim read function Sascha Hauer
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Sascha Hauer @ 2011-07-28 10:05 UTC (permalink / raw)
  To: barebox

The following series allows boards to associate MAC addresses with
ethernet devices. This makes it possible for boards to correctly
assign a MAC address without fiddling with each network driver.

The series also switches the current i.MX IIM based MAC address
setting to this new functionality.

Sascha Hauer (4):
      ARM i.MX IIM: Add a iim read function
      net: Add a possibility for boards to give network devices a MAC address
      ARM i.MX: rework IIM MAC address setting
      ARM i.MX51 babbage: set fec ethernet address from IIM

 arch/arm/boards/eukrea_cpuimx25/eukrea_cpuimx25.c |    2 +
 arch/arm/boards/freescale-mx25-3-stack/3stack.c   |    2 +
 arch/arm/boards/freescale-mx51-pdk/board.c        |    5 ++-
 arch/arm/mach-imx/iim.c                           |   29 ++++++----
 arch/arm/mach-imx/include/mach/iim.h              |   34 +++++++++++-
 drivers/net/fec_imx.c                             |    4 --
 include/net.h                                     |    6 ++
 net/eth.c                                         |   59 ++++++++++++++++++++-
 8 files changed, 122 insertions(+), 19 deletions(-)

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^ permalink raw reply	[flat|nested] 6+ messages in thread
* [PATCH 1/4] ARM i.MX IIM: Add a iim read function
  2011-07-28 10:05 MAC address setting Sascha Hauer
@ 2011-07-28 10:05 ` Sascha Hauer
  2011-07-28 14:10   ` Marc Kleine-Budde
  2011-07-28 10:05 ` [PATCH 2/4] net: Add a possibility for boards to give network devices a MAC address Sascha Hauer
                   ` (2 subsequent siblings)
  3 siblings, 1 reply; 6+ messages in thread
From: Sascha Hauer @ 2011-07-28 10:05 UTC (permalink / raw)
  To: barebox

To allow reading the iim from code.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-imx/iim.c              |   28 ++++++++++++++++++++++++----
 arch/arm/mach-imx/include/mach/iim.h |    7 +++++++
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c
index 0774ebb..7a8712b 100644
--- a/arch/arm/mach-imx/iim.c
+++ b/arch/arm/mach-imx/iim.c
@@ -22,6 +22,8 @@
 #include <xfuncs.h>
 #include <errno.h>
 #include <param.h>
+#include <fcntl.h>
+#include <malloc.h>
 
 #include <asm/io.h>
 
@@ -73,7 +75,7 @@ static int do_fuse_sense(unsigned long reg_base, unsigned int bank,
 	return readb(reg_base + IIM_SDAT);
 }
 
-static ssize_t imx_iim_read(struct cdev *cdev, void *buf, size_t count,
+static ssize_t imx_iim_cdev_read(struct cdev *cdev, void *buf, size_t count,
 		ulong offset, ulong flags)
 {
 	ulong size, i;
@@ -168,7 +170,7 @@ out:
 }
 #endif /* CONFIG_IMX_IIM_FUSE_BLOW */
 
-static ssize_t imx_iim_write(struct cdev *cdev, const void *buf, size_t count,
+static ssize_t imx_iim_cdev_write(struct cdev *cdev, const void *buf, size_t count,
 		ulong offset, ulong flags)
 {
 	ulong size, i;
@@ -204,8 +206,8 @@ static ssize_t imx_iim_write(struct cdev *cdev, const void *buf, size_t count,
 }
 
 static struct file_operations imx_iim_ops = {
-	.read	= imx_iim_read,
-	.write	= imx_iim_write,
+	.read	= imx_iim_cdev_read,
+	.write	= imx_iim_cdev_write,
 	.lseek	= dev_lseek_default,
 };
 
@@ -297,6 +299,24 @@ static int imx_iim_init(void)
 }
 coredevice_initcall(imx_iim_init);
 
+int imx_iim_read(unsigned int bank, int offset, int count, void *buf)
+{
+	struct cdev *cdev;
+	char *name = asprintf(DRIVERNAME "_bank%d", bank);
+	int ret;
+
+	cdev = cdev_open(name, O_RDONLY);
+	if (!cdev)
+		return -ENODEV;
+
+	ret = cdev_read(cdev, buf, count, offset, 0);
+
+	cdev_close(cdev);
+	free(name);
+
+	return ret;
+}
+
 int imx_iim_get_mac(unsigned char *mac)
 {
 	int i;
diff --git a/arch/arm/mach-imx/include/mach/iim.h b/arch/arm/mach-imx/include/mach/iim.h
index 03ff485..9ff44be 100644
--- a/arch/arm/mach-imx/include/mach/iim.h
+++ b/arch/arm/mach-imx/include/mach/iim.h
@@ -46,8 +46,15 @@ struct imx_iim_platform_data {
 };
 
 #ifdef CONFIG_IMX_IIM
+int imx_iim_read(unsigned int bank, int offset, int count, void *buf);
 int imx_iim_get_mac(unsigned char *mac);
 #else
+static inline int imx_iim_read(unsigned int bank, int offset, int count,
+		void *buf)
+{
+	return -EINVAL;
+}
+
 static inline int imx_iim_get_mac(unsigned char *mac)
 {
 	return -EINVAL;
-- 
1.7.5.4


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^ permalink raw reply	[flat|nested] 6+ messages in thread
* [PATCH 2/4] net: Add a possibility for boards to give network devices a MAC address
  2011-07-28 10:05 MAC address setting Sascha Hauer
  2011-07-28 10:05 ` [PATCH 1/4] ARM i.MX IIM: Add a iim read function Sascha Hauer
@ 2011-07-28 10:05 ` Sascha Hauer
  2011-07-28 10:05 ` [PATCH 3/4] ARM i.MX: rework IIM MAC address setting Sascha Hauer
  2011-07-28 10:06 ` [PATCH 4/4] ARM i.MX51 babbage: set fec ethernet address from IIM Sascha Hauer
  3 siblings, 0 replies; 6+ messages in thread
From: Sascha Hauer @ 2011-07-28 10:05 UTC (permalink / raw)
  To: barebox

MAC addresses are sometimes stored at unusual places. This
patch makes it possible to give a MAC address to a ethernet
device id. This is independent of the device actually being
present.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 include/net.h |    6 +++++
 net/eth.c     |   59 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 64 insertions(+), 1 deletions(-)

diff --git a/include/net.h b/include/net.h
index 31bf6a2..7fee6fe 100644
--- a/include/net.h
+++ b/include/net.h
@@ -57,6 +57,12 @@ int eth_send(void *packet, int length);	   /* Send a packet		*/
 int eth_rx(void);			/* Check for received packets	*/
 void eth_halt(void);			/* stop SCC			*/
 
+/* associate a MAC address to a ethernet device. Should be called by
+ * board code for boards which store their MAC address at some unusual
+ * place.
+ */
+void eth_register_ethaddr(int ethid, const char *ethaddr);
+
 /*
  *	Ethernet header
  */
diff --git a/net/eth.c b/net/eth.c
index c5b346c..2a801f5 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -34,6 +34,52 @@ static struct eth_device *eth_current;
 
 static LIST_HEAD(netdev_list);
 
+struct eth_ethaddr {
+	struct list_head list;
+	u8 ethaddr[6];
+	int ethid;
+};
+
+static LIST_HEAD(ethaddr_list);
+
+static int eth_get_registered_ethaddr(int ethid, void *buf)
+{
+	struct eth_ethaddr *addr;
+
+	list_for_each_entry(addr, &ethaddr_list, list) {
+		if (addr->ethid == ethid) {
+			memcpy(buf, addr->ethaddr, 6);
+			return 0;
+		}
+	}
+	return -EINVAL;
+}
+
+static void eth_drop_ethaddr(int ethid)
+{
+	struct eth_ethaddr *addr, *tmp;
+
+	list_for_each_entry_safe(addr, tmp, &ethaddr_list, list) {
+		if (addr->ethid == ethid) {
+			list_del(&addr->list);
+			free(addr);
+			return;
+		}
+	}
+}
+
+void eth_register_ethaddr(int ethid, const char *ethaddr)
+{
+	struct eth_ethaddr *addr;
+
+	eth_drop_ethaddr(ethid);
+
+	addr = xzalloc(sizeof(*addr));
+	addr->ethid = ethid;
+	memcpy(addr->ethaddr, ethaddr, 6);
+	list_add_tail(&addr->list, &ethaddr_list);
+}
+
 void eth_set_current(struct eth_device *eth)
 {
 	if (eth_current && eth_current->active) {
@@ -144,6 +190,7 @@ int eth_register(struct eth_device *edev)
         struct device_d *dev = &edev->dev;
 	unsigned char ethaddr_str[20];
 	unsigned char ethaddr[6];
+	int ret, found = 0;
 
 	if (!edev->get_ethaddr) {
 		dev_err(dev, "no get_mac_address found for current eth device\n");
@@ -165,7 +212,17 @@ int eth_register(struct eth_device *edev)
 
 	list_add_tail(&edev->list, &netdev_list);
 
-	if (edev->get_ethaddr(edev, ethaddr) == 0) {
+	ret = eth_get_registered_ethaddr(dev->id, ethaddr);
+	if (!ret)
+		found = 1;
+
+	if (!found) {
+		ret = edev->get_ethaddr(edev, ethaddr);
+		if (!ret)
+			found = 1;
+	}
+
+	if (found) {
 		ethaddr_to_string(ethaddr, ethaddr_str);
 		if (is_valid_ether_addr(ethaddr)) {
 			dev_info(dev, "got MAC address from EEPROM: %s\n", ethaddr_str);
-- 
1.7.5.4


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^ permalink raw reply	[flat|nested] 6+ messages in thread
* [PATCH 3/4] ARM i.MX: rework IIM MAC address setting
  2011-07-28 10:05 MAC address setting Sascha Hauer
  2011-07-28 10:05 ` [PATCH 1/4] ARM i.MX IIM: Add a iim read function Sascha Hauer
  2011-07-28 10:05 ` [PATCH 2/4] net: Add a possibility for boards to give network devices a MAC address Sascha Hauer
@ 2011-07-28 10:05 ` Sascha Hauer
  2011-07-28 10:06 ` [PATCH 4/4] ARM i.MX51 babbage: set fec ethernet address from IIM Sascha Hauer
  3 siblings, 0 replies; 6+ messages in thread
From: Sascha Hauer @ 2011-07-28 10:05 UTC (permalink / raw)
  To: barebox

Switch to the generic way of setting a MAC address for a
device.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/boards/eukrea_cpuimx25/eukrea_cpuimx25.c |    2 +
 arch/arm/boards/freescale-mx25-3-stack/3stack.c   |    2 +
 arch/arm/mach-imx/iim.c                           |   13 ---------
 arch/arm/mach-imx/include/mach/iim.h              |   31 ++++++++++++++++++---
 drivers/net/fec_imx.c                             |    4 ---
 5 files changed, 31 insertions(+), 21 deletions(-)

diff --git a/arch/arm/boards/eukrea_cpuimx25/eukrea_cpuimx25.c b/arch/arm/boards/eukrea_cpuimx25/eukrea_cpuimx25.c
index 6ea4a6e..d797846 100644
--- a/arch/arm/boards/eukrea_cpuimx25/eukrea_cpuimx25.c
+++ b/arch/arm/boards/eukrea_cpuimx25/eukrea_cpuimx25.c
@@ -37,6 +37,7 @@
 #include <generated/mach-types.h>
 #include <mach/imx-nand.h>
 #include <mach/imxfb.h>
+#include <mach/iim.h>
 #include <fec.h>
 #include <nand.h>
 #include <mach/imx-flash-header.h>
@@ -251,6 +252,7 @@ static int eukrea_cpuimx25_devices_init(void)
 
 	led_gpio_register(&led0);
 
+	imx25_iim_register_fec_ethaddr();
 	imx25_add_fec(&fec_info);
 
 	nand_info.width = 1;
diff --git a/arch/arm/boards/freescale-mx25-3-stack/3stack.c b/arch/arm/boards/freescale-mx25-3-stack/3stack.c
index 6d4bde5..f71cb4b 100644
--- a/arch/arm/boards/freescale-mx25-3-stack/3stack.c
+++ b/arch/arm/boards/freescale-mx25-3-stack/3stack.c
@@ -37,6 +37,7 @@
 #include <mach/imx-flash-header.h>
 #include <mach/iomux-mx25.h>
 #include <mach/generic.h>
+#include <mach/iim.h>
 #include <linux/err.h>
 #include <i2c/i2c.h>
 #include <mfd/mc34704.h>
@@ -210,6 +211,7 @@ static int imx25_devices_init(void)
 	register_device(&usbh2_dev);
 #endif
 
+	imx25_iim_register_fec_ethaddr();
 	imx25_add_fec(&fec_info);
 
 	if (readl(IMX_CCM_BASE + CCM_RCSR) & (1 << 14))
diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c
index 7a8712b..d641bf5 100644
--- a/arch/arm/mach-imx/iim.c
+++ b/arch/arm/mach-imx/iim.c
@@ -316,16 +316,3 @@ int imx_iim_read(unsigned int bank, int offset, int count, void *buf)
 
 	return ret;
 }
-
-int imx_iim_get_mac(unsigned char *mac)
-{
-	int i;
-
-	if (mac_addr_base == 0)
-		return -EINVAL;
-
-	for (i = 0; i < 6; i++)
-		 mac[i] = readb(mac_addr_base + i*4);
-
-	return 0;
-}
diff --git a/arch/arm/mach-imx/include/mach/iim.h b/arch/arm/mach-imx/include/mach/iim.h
index 9ff44be..f74b415 100644
--- a/arch/arm/mach-imx/include/mach/iim.h
+++ b/arch/arm/mach-imx/include/mach/iim.h
@@ -24,6 +24,7 @@
 #define __MACH_IMX_IIM_H
 
 #include <errno.h>
+#include <net.h>
 
 #define IIM_STAT	0x0000
 #define IIM_STATM	0x0004
@@ -47,18 +48,40 @@ struct imx_iim_platform_data {
 
 #ifdef CONFIG_IMX_IIM
 int imx_iim_read(unsigned int bank, int offset, int count, void *buf);
-int imx_iim_get_mac(unsigned char *mac);
 #else
 static inline int imx_iim_read(unsigned int bank, int offset, int count,
 		void *buf)
 {
 	return -EINVAL;
 }
+#endif /* CONFIG_IMX_IIM */
 
-static inline int imx_iim_get_mac(unsigned char *mac)
+static inline int imx51_iim_register_fec_ethaddr(void)
 {
-	return -EINVAL;
+	int ret;
+	u8 buf[6];
+
+	ret = imx_iim_read(1, 9, 6, buf);
+	if (ret != 6)
+		return -EINVAL;
+
+	eth_register_ethaddr(0, buf);
+
+	return 0;
+}
+
+static inline int imx25_iim_register_fec_ethaddr(void)
+{
+	int ret;
+	u8 buf[6];
+
+	ret = imx_iim_read(0, 26, 6, buf);
+	if (ret != 6)
+		return -EINVAL;
+
+	eth_register_ethaddr(0, buf);
+
+	return 0;
 }
-#endif /* CONFIG_IMX_IIM */
 
 #endif /* __MACH_IMX_IIM_H */
diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c
index fcb8cc5..619504e 100644
--- a/drivers/net/fec_imx.c
+++ b/drivers/net/fec_imx.c
@@ -269,11 +269,7 @@ static void fec_rbd_clean(int last, struct buffer_descriptor __iomem *pRbd)
 
 static int fec_get_hwaddr(struct eth_device *dev, unsigned char *mac)
 {
-#ifdef CONFIG_ARCH_MXS
 	return -1;
-#else
-	return imx_iim_get_mac(mac);
-#endif
 }
 
 static int fec_set_hwaddr(struct eth_device *dev, unsigned char *mac)
-- 
1.7.5.4


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^ permalink raw reply	[flat|nested] 6+ messages in thread
* [PATCH 4/4] ARM i.MX51 babbage: set fec ethernet address from IIM
  2011-07-28 10:05 MAC address setting Sascha Hauer
                   ` (2 preceding siblings ...)
  2011-07-28 10:05 ` [PATCH 3/4] ARM i.MX: rework IIM MAC address setting Sascha Hauer
@ 2011-07-28 10:06 ` Sascha Hauer
  3 siblings, 0 replies; 6+ messages in thread
From: Sascha Hauer @ 2011-07-28 10:06 UTC (permalink / raw)
  To: barebox

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/boards/freescale-mx51-pdk/board.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/arch/arm/boards/freescale-mx51-pdk/board.c b/arch/arm/boards/freescale-mx51-pdk/board.c
index d0b8b89..c763719 100644
--- a/arch/arm/boards/freescale-mx51-pdk/board.c
+++ b/arch/arm/boards/freescale-mx51-pdk/board.c
@@ -19,7 +19,6 @@
  */
 
 #include <common.h>
-#include <net.h>
 #include <init.h>
 #include <environment.h>
 #include <mach/imx-regs.h>
@@ -40,6 +39,7 @@
 #include <mach/generic.h>
 #include <mach/iomux-mx51.h>
 #include <mach/devices-imx51.h>
+#include <mach/iim.h>
 
 static struct fec_platform_data fec_info = {
 	.xcv_type = MII100,
@@ -230,11 +230,14 @@ static void babbage_power_init(void)
 static int f3s_devices_init(void)
 {
 	struct device_d *sdram_dev;
+
 	babbage_mmu_init();
 
 	sdram_dev = add_mem_device("ram0", 0x90000000, 512 * 1024 * 1024,
 				   IORESOURCE_MEM_WRITEABLE);
 	armlinux_add_dram(sdram_dev);
+
+	imx51_iim_register_fec_ethaddr();
 	imx51_add_fec(&fec_info);
 	imx51_add_mmc0(NULL);
 
-- 
1.7.5.4


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^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: [PATCH 1/4] ARM i.MX IIM: Add a iim read function
  2011-07-28 10:05 ` [PATCH 1/4] ARM i.MX IIM: Add a iim read function Sascha Hauer
@ 2011-07-28 14:10   ` Marc Kleine-Budde
  0 siblings, 0 replies; 6+ messages in thread
From: Marc Kleine-Budde @ 2011-07-28 14:10 UTC (permalink / raw)
  To: Sascha Hauer; +Cc: barebox


[-- Attachment #1.1: Type: text/plain, Size: 3288 bytes --]

On 07/28/2011 12:05 PM, Sascha Hauer wrote:
> To allow reading the iim from code.
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
>  arch/arm/mach-imx/iim.c              |   28 ++++++++++++++++++++++++----
>  arch/arm/mach-imx/include/mach/iim.h |    7 +++++++
>  2 files changed, 31 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/mach-imx/iim.c b/arch/arm/mach-imx/iim.c
> index 0774ebb..7a8712b 100644
> --- a/arch/arm/mach-imx/iim.c
> +++ b/arch/arm/mach-imx/iim.c
> @@ -22,6 +22,8 @@
>  #include <xfuncs.h>
>  #include <errno.h>
>  #include <param.h>
> +#include <fcntl.h>
> +#include <malloc.h>
>  
>  #include <asm/io.h>
>  
> @@ -73,7 +75,7 @@ static int do_fuse_sense(unsigned long reg_base, unsigned int bank,
>  	return readb(reg_base + IIM_SDAT);
>  }
>  
> -static ssize_t imx_iim_read(struct cdev *cdev, void *buf, size_t count,
> +static ssize_t imx_iim_cdev_read(struct cdev *cdev, void *buf, size_t count,
>  		ulong offset, ulong flags)
>  {
>  	ulong size, i;
> @@ -168,7 +170,7 @@ out:
>  }
>  #endif /* CONFIG_IMX_IIM_FUSE_BLOW */
>  
> -static ssize_t imx_iim_write(struct cdev *cdev, const void *buf, size_t count,
> +static ssize_t imx_iim_cdev_write(struct cdev *cdev, const void *buf, size_t count,
>  		ulong offset, ulong flags)
>  {
>  	ulong size, i;
> @@ -204,8 +206,8 @@ static ssize_t imx_iim_write(struct cdev *cdev, const void *buf, size_t count,
>  }
>  
>  static struct file_operations imx_iim_ops = {
> -	.read	= imx_iim_read,
> -	.write	= imx_iim_write,
> +	.read	= imx_iim_cdev_read,
> +	.write	= imx_iim_cdev_write,
>  	.lseek	= dev_lseek_default,
>  };
>  
> @@ -297,6 +299,24 @@ static int imx_iim_init(void)
>  }
>  coredevice_initcall(imx_iim_init);
>  
> +int imx_iim_read(unsigned int bank, int offset, int count, void *buf)

The order of count and buf is IMHO unintuitive:

       ssize_t read(int fildes, void *buf, size_t nbyte);

Marc

> +{
> +	struct cdev *cdev;
> +	char *name = asprintf(DRIVERNAME "_bank%d", bank);
> +	int ret;
> +
> +	cdev = cdev_open(name, O_RDONLY);
> +	if (!cdev)
> +		return -ENODEV;
> +
> +	ret = cdev_read(cdev, buf, count, offset, 0);
> +
> +	cdev_close(cdev);
> +	free(name);
> +
> +	return ret;
> +}
> +
>  int imx_iim_get_mac(unsigned char *mac)
>  {
>  	int i;
> diff --git a/arch/arm/mach-imx/include/mach/iim.h b/arch/arm/mach-imx/include/mach/iim.h
> index 03ff485..9ff44be 100644
> --- a/arch/arm/mach-imx/include/mach/iim.h
> +++ b/arch/arm/mach-imx/include/mach/iim.h
> @@ -46,8 +46,15 @@ struct imx_iim_platform_data {
>  };
>  
>  #ifdef CONFIG_IMX_IIM
> +int imx_iim_read(unsigned int bank, int offset, int count, void *buf);
>  int imx_iim_get_mac(unsigned char *mac);
>  #else
> +static inline int imx_iim_read(unsigned int bank, int offset, int count,
> +		void *buf)
> +{
> +	return -EINVAL;
> +}
> +
>  static inline int imx_iim_get_mac(unsigned char *mac)
>  {
>  	return -EINVAL;


-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-07-28 14:10 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-07-28 10:05 MAC address setting Sascha Hauer
2011-07-28 10:05 ` [PATCH 1/4] ARM i.MX IIM: Add a iim read function Sascha Hauer
2011-07-28 14:10   ` Marc Kleine-Budde
2011-07-28 10:05 ` [PATCH 2/4] net: Add a possibility for boards to give network devices a MAC address Sascha Hauer
2011-07-28 10:05 ` [PATCH 3/4] ARM i.MX: rework IIM MAC address setting Sascha Hauer
2011-07-28 10:06 ` [PATCH 4/4] ARM i.MX51 babbage: set fec ethernet address from IIM Sascha Hauer

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