diff mbox

[U-Boot,v5,1/7] drivers: net: cpsw: Add reading of DT phy-handle node

Message ID 1460377108-19262-1-git-send-email-dmurphy@ti.com
State Superseded
Delegated to: Joe Hershberger
Headers show

Commit Message

Dan Murphy April 11, 2016, 12:18 p.m. UTC
Add the ability to read the phy-handle node of the
cpsw slave.  Upon reading this handle the phy-id
can be stored based on the reg node in the DT.

The phy-handle also needs to be stored and passed
to the phy to access any phy data that is available.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
---

v5 - Fix checkpatch warning no spaces before tabs and typo is subject - https://patchwork.ozlabs.org/patch/608082/

 drivers/net/cpsw.c | 18 ++++++++++++++++--
 include/cpsw.h     |  1 +
 2 files changed, 17 insertions(+), 2 deletions(-)

Comments

Dan Murphy April 13, 2016, 1:36 p.m. UTC | #1
Adding Joe

On 04/11/2016 07:18 AM, Dan Murphy wrote:
> Add the ability to read the phy-handle node of the
> cpsw slave.  Upon reading this handle the phy-id
> can be stored based on the reg node in the DT.
>
> The phy-handle also needs to be stored and passed
> to the phy to access any phy data that is available.
>
> Signed-off-by: Dan Murphy <dmurphy@ti.com>
> ---
>
> v5 - Fix checkpatch warning no spaces before tabs and typo is subject - https://patchwork.ozlabs.org/patch/608082/
>
>  drivers/net/cpsw.c | 18 ++++++++++++++++--
>  include/cpsw.h     |  1 +
>  2 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
> index 7104754..8ee33a6 100644
> --- a/drivers/net/cpsw.c
> +++ b/drivers/net/cpsw.c
> @@ -965,6 +965,9 @@ static int cpsw_phy_init(struct cpsw_priv *priv, struct cpsw_slave *slave)
>  	phydev->supported &= supported;
>  	phydev->advertising = phydev->supported;
>  
> +	if (slave->data->phy_of_handle)
> +		phydev->dev->of_offset = slave->data->phy_of_handle;
> +
>  	priv->phydev = phydev;
>  	phy_config(phydev);
>  
> @@ -1217,8 +1220,19 @@ static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
>  			if (phy_mode)
>  				priv->data.slave_data[slave_index].phy_if =
>  					phy_get_interface_by_name(phy_mode);
> -			fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
> -			priv->data.slave_data[slave_index].phy_addr = phy_id[1];
> +
> +			priv->data.slave_data[slave_index].phy_of_handle =
> +				fdtdec_lookup_phandle(fdt, subnode, "phy-handle");
> +
> +			if (priv->data.slave_data[slave_index].phy_of_handle) {
> +				priv->data.slave_data[slave_index].phy_addr =
> +					fdtdec_get_int(gd->fdt_blob,
> +						priv->data.slave_data[slave_index].phy_of_handle,
> +						"reg", -1);
> +			} else {
> +				fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
> +				priv->data.slave_data[slave_index].phy_addr = phy_id[1];
> +			}
>  			slave_index++;
>  		}
>  
> diff --git a/include/cpsw.h b/include/cpsw.h
> index cf1d30b..ff95cd8 100644
> --- a/include/cpsw.h
> +++ b/include/cpsw.h
> @@ -21,6 +21,7 @@ struct cpsw_slave_data {
>  	u32		sliver_reg_ofs;
>  	int		phy_addr;
>  	int		phy_if;
> +	int		phy_of_handle;
>  };
>  
>  enum {
Mugunthan V N April 15, 2016, 10:53 a.m. UTC | #2
On Monday 11 April 2016 05:48 PM, Dan Murphy wrote:
> Add the ability to read the phy-handle node of the
> cpsw slave.  Upon reading this handle the phy-id
> can be stored based on the reg node in the DT.
> 
> The phy-handle also needs to be stored and passed
> to the phy to access any phy data that is available.
> 
> Signed-off-by: Dan Murphy <dmurphy@ti.com>
> ---
> 
> v5 - Fix checkpatch warning no spaces before tabs and typo is subject - https://patchwork.ozlabs.org/patch/608082/
> 
>  drivers/net/cpsw.c | 18 ++++++++++++++++--
>  include/cpsw.h     |  1 +
>  2 files changed, 17 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
> index 7104754..8ee33a6 100644
> --- a/drivers/net/cpsw.c
> +++ b/drivers/net/cpsw.c
> @@ -965,6 +965,9 @@ static int cpsw_phy_init(struct cpsw_priv *priv, struct cpsw_slave *slave)
>  	phydev->supported &= supported;
>  	phydev->advertising = phydev->supported;
>  
> +	if (slave->data->phy_of_handle)
> +		phydev->dev->of_offset = slave->data->phy_of_handle;
> +
>  	priv->phydev = phydev;
>  	phy_config(phydev);
>  
> @@ -1217,8 +1220,19 @@ static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
>  			if (phy_mode)
>  				priv->data.slave_data[slave_index].phy_if =
>  					phy_get_interface_by_name(phy_mode);
> -			fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
> -			priv->data.slave_data[slave_index].phy_addr = phy_id[1];
> +
> +			priv->data.slave_data[slave_index].phy_of_handle =
> +				fdtdec_lookup_phandle(fdt, subnode, "phy-handle");
> +
> +			if (priv->data.slave_data[slave_index].phy_of_handle) {

This check is wrong, it should be

if (priv->data.slave_data[slave_index].phy_of_handle >= 0) {

on failure fdtdec_lookup_phandle() will return -error_value and not 0

> +				priv->data.slave_data[slave_index].phy_addr =
> +					fdtdec_get_int(gd->fdt_blob,
> +						priv->data.slave_data[slave_index].phy_of_handle,
> +						"reg", -1);
> +			} else {
> +				fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
> +				priv->data.slave_data[slave_index].phy_addr = phy_id[1];
> +			}
>  			slave_index++;
>  		}
>  
> diff --git a/include/cpsw.h b/include/cpsw.h
> index cf1d30b..ff95cd8 100644
> --- a/include/cpsw.h
> +++ b/include/cpsw.h
> @@ -21,6 +21,7 @@ struct cpsw_slave_data {
>  	u32		sliver_reg_ofs;
>  	int		phy_addr;
>  	int		phy_if;
> +	int		phy_of_handle;
>  };
>  
>  enum {
>
Mugunthan V N April 15, 2016, 11:03 a.m. UTC | #3
On Monday 11 April 2016 05:48 PM, Dan Murphy wrote:
> Add the ability to read the phy-handle node of the
> cpsw slave.  Upon reading this handle the phy-id
> can be stored based on the reg node in the DT.
> 
> The phy-handle also needs to be stored and passed
> to the phy to access any phy data that is available.
> 
> Signed-off-by: Dan Murphy <dmurphy@ti.com>
> ---
> 
> v5 - Fix checkpatch warning no spaces before tabs and typo is subject - https://patchwork.ozlabs.org/patch/608082/
> 
>  drivers/net/cpsw.c | 18 ++++++++++++++++--
>  include/cpsw.h     |  1 +
>  2 files changed, 17 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
> index 7104754..8ee33a6 100644
> --- a/drivers/net/cpsw.c
> +++ b/drivers/net/cpsw.c
> @@ -965,6 +965,9 @@ static int cpsw_phy_init(struct cpsw_priv *priv, struct cpsw_slave *slave)
>  	phydev->supported &= supported;
>  	phydev->advertising = phydev->supported;
>  
> +	if (slave->data->phy_of_handle)
> +		phydev->dev->of_offset = slave->data->phy_of_handle;

This has to be protected with ifdef CONFIG_DM_ETH as dev->of_offset is
available only in DM_ETH

Build error for non-dm-eth case
drivers/net/cpsw.c: In function ‘cpsw_phy_init’:
drivers/net/cpsw.c:970:14: error: ‘struct eth_device’ has no member
named ‘of_offset’
   phydev->dev->of_offset = slave->data->phy_of_handle;
              ^
scripts/Makefile.build:280: recipe for target 'drivers/net/cpsw.o' failed
make[1]: *** [drivers/net/cpsw.o] Error 1

> +
>  	priv->phydev = phydev;
>  	phy_config(phydev);
>  
> @@ -1217,8 +1220,19 @@ static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
>  			if (phy_mode)
>  				priv->data.slave_data[slave_index].phy_if =
>  					phy_get_interface_by_name(phy_mode);
> -			fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
> -			priv->data.slave_data[slave_index].phy_addr = phy_id[1];
> +
> +			priv->data.slave_data[slave_index].phy_of_handle =
> +				fdtdec_lookup_phandle(fdt, subnode, "phy-handle");
> +
> +			if (priv->data.slave_data[slave_index].phy_of_handle) {
> +				priv->data.slave_data[slave_index].phy_addr =
> +					fdtdec_get_int(gd->fdt_blob,
> +						priv->data.slave_data[slave_index].phy_of_handle,
> +						"reg", -1);
> +			} else {
> +				fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
> +				priv->data.slave_data[slave_index].phy_addr = phy_id[1];
> +			}
>  			slave_index++;
>  		}
>  
> diff --git a/include/cpsw.h b/include/cpsw.h
> index cf1d30b..ff95cd8 100644
> --- a/include/cpsw.h
> +++ b/include/cpsw.h
> @@ -21,6 +21,7 @@ struct cpsw_slave_data {
>  	u32		sliver_reg_ofs;
>  	int		phy_addr;
>  	int		phy_if;
> +	int		phy_of_handle;
>  };
>  
>  enum {
>
diff mbox

Patch

diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
index 7104754..8ee33a6 100644
--- a/drivers/net/cpsw.c
+++ b/drivers/net/cpsw.c
@@ -965,6 +965,9 @@  static int cpsw_phy_init(struct cpsw_priv *priv, struct cpsw_slave *slave)
 	phydev->supported &= supported;
 	phydev->advertising = phydev->supported;
 
+	if (slave->data->phy_of_handle)
+		phydev->dev->of_offset = slave->data->phy_of_handle;
+
 	priv->phydev = phydev;
 	phy_config(phydev);
 
@@ -1217,8 +1220,19 @@  static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
 			if (phy_mode)
 				priv->data.slave_data[slave_index].phy_if =
 					phy_get_interface_by_name(phy_mode);
-			fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
-			priv->data.slave_data[slave_index].phy_addr = phy_id[1];
+
+			priv->data.slave_data[slave_index].phy_of_handle =
+				fdtdec_lookup_phandle(fdt, subnode, "phy-handle");
+
+			if (priv->data.slave_data[slave_index].phy_of_handle) {
+				priv->data.slave_data[slave_index].phy_addr =
+					fdtdec_get_int(gd->fdt_blob,
+						priv->data.slave_data[slave_index].phy_of_handle,
+						"reg", -1);
+			} else {
+				fdtdec_get_int_array(fdt, subnode, "phy_id", phy_id, 2);
+				priv->data.slave_data[slave_index].phy_addr = phy_id[1];
+			}
 			slave_index++;
 		}
 
diff --git a/include/cpsw.h b/include/cpsw.h
index cf1d30b..ff95cd8 100644
--- a/include/cpsw.h
+++ b/include/cpsw.h
@@ -21,6 +21,7 @@  struct cpsw_slave_data {
 	u32		sliver_reg_ofs;
 	int		phy_addr;
 	int		phy_if;
+	int		phy_of_handle;
 };
 
 enum {