| Message ID | 1387385242-1161-5-git-send-email-mpa@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hello Markus, On Wed, Dec 18, 2013 at 05:47:20PM +0100, Markus Pargmann wrote: > Use ctrl-macid driver to obtain the macids stored in the processor. This > is only done when defined in DT. > > Signed-off-by: Markus Pargmann <mpa@pengutronix.de> > --- > Documentation/devicetree/bindings/net/cpsw.txt | 5 +++++ > drivers/net/ethernet/ti/cpsw.c | 18 ++++++++++++++---- > drivers/net/ethernet/ti/cpsw.h | 2 ++ > 3 files changed, 21 insertions(+), 4 deletions(-) > > diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt > index c39f077..b95c38b 100644 > --- a/Documentation/devicetree/bindings/net/cpsw.txt > +++ b/Documentation/devicetree/bindings/net/cpsw.txt > @@ -34,6 +34,11 @@ Required properties: > Optional properties: > - dual_emac_res_vlan : Specifies VID to be used to segregate the ports > - mac-address : Specifies slave MAC address > +- ti,mac-address-ctrl : When cpsw-ctrl-macid support is compiledin, this can > + be set to a phandle with one argument, see > + cpsw-ctrl-macid.txt. If this method fails, cpsw falls > + back to mac-address or random mac-address. > + > > Note: "ti,hwmods" field is used to fetch the base address and irq > resources from TI, omap hwmod data base during device registration. > diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c > index 5120d9c..382d793 100644 > --- a/drivers/net/ethernet/ti/cpsw.c > +++ b/drivers/net/ethernet/ti/cpsw.c > @@ -1804,9 +1804,16 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, > snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), > PHY_ID_FMT, mdio->name, phyid); > > - mac_addr = of_get_mac_address(slave_node); > - if (mac_addr) > - memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN); > + ret = cpsw_ctrl_macid_read(slave_node, slave_data->mac_addr); > + if (ret) { > + if (ret == -EPROBE_DEFER) > + return ret; > + > + mac_addr = of_get_mac_address(slave_node); > + if (mac_addr) > + memcpy(slave_data->mac_addr, mac_addr, > + ETH_ALEN); > + } I'd do it the other way round: Use the contents from an explicit "mac-address" or "local-mac-address" property (i.e. of_get_mac_address) and if that doesn't return anything use the mac-address-ctrl as fallback. > > slave_data->phy_if = of_get_phy_mode(slave_node); > > @@ -1946,10 +1953,13 @@ static int cpsw_probe(struct platform_device *pdev) > /* Select default pin state */ > pinctrl_pm_select_default_state(&pdev->dev); > > - if (cpsw_probe_dt(&priv->data, pdev)) { > + ret = cpsw_probe_dt(&priv->data, pdev); > + if (ret == -EINVAL) { > pr_err("cpsw: platform data missing\n"); > ret = -ENODEV; > goto clean_runtime_disable_ret; > + } else if (ret) { > + goto clean_runtime_disable_ret; > } > data = &priv->data; > > diff --git a/drivers/net/ethernet/ti/cpsw.h b/drivers/net/ethernet/ti/cpsw.h > index 1b71067..222eebe 100644 > --- a/drivers/net/ethernet/ti/cpsw.h > +++ b/drivers/net/ethernet/ti/cpsw.h > @@ -42,4 +42,6 @@ struct cpsw_platform_data { > > void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave); > > +int cpsw_ctrl_macid_read(struct device_node *np, u8 *mac_addr); > + > #endif /* __CPSW_H__ */ > --
Hi Uwe, On Thu, Feb 13, 2014 at 08:37:02PM +0100, Uwe Kleine-König wrote: > Hello Markus, > > On Wed, Dec 18, 2013 at 05:47:20PM +0100, Markus Pargmann wrote: > > Use ctrl-macid driver to obtain the macids stored in the processor. This > > is only done when defined in DT. > > > > Signed-off-by: Markus Pargmann <mpa@pengutronix.de> > > --- > > Documentation/devicetree/bindings/net/cpsw.txt | 5 +++++ > > drivers/net/ethernet/ti/cpsw.c | 18 ++++++++++++++---- > > drivers/net/ethernet/ti/cpsw.h | 2 ++ > > 3 files changed, 21 insertions(+), 4 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt > > index c39f077..b95c38b 100644 > > --- a/Documentation/devicetree/bindings/net/cpsw.txt > > +++ b/Documentation/devicetree/bindings/net/cpsw.txt > > @@ -34,6 +34,11 @@ Required properties: > > Optional properties: > > - dual_emac_res_vlan : Specifies VID to be used to segregate the ports > > - mac-address : Specifies slave MAC address > > +- ti,mac-address-ctrl : When cpsw-ctrl-macid support is compiledin, this can > > + be set to a phandle with one argument, see > > + cpsw-ctrl-macid.txt. If this method fails, cpsw falls > > + back to mac-address or random mac-address. > > + > > > > Note: "ti,hwmods" field is used to fetch the base address and irq > > resources from TI, omap hwmod data base during device registration. > > diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c > > index 5120d9c..382d793 100644 > > --- a/drivers/net/ethernet/ti/cpsw.c > > +++ b/drivers/net/ethernet/ti/cpsw.c > > @@ -1804,9 +1804,16 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, > > snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), > > PHY_ID_FMT, mdio->name, phyid); > > > > - mac_addr = of_get_mac_address(slave_node); > > - if (mac_addr) > > - memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN); > > + ret = cpsw_ctrl_macid_read(slave_node, slave_data->mac_addr); > > + if (ret) { > > + if (ret == -EPROBE_DEFER) > > + return ret; > > + > > + mac_addr = of_get_mac_address(slave_node); > > + if (mac_addr) > > + memcpy(slave_data->mac_addr, mac_addr, > > + ETH_ALEN); > > + } > I'd do it the other way round: Use the contents from an explicit > "mac-address" or "local-mac-address" property (i.e. of_get_mac_address) > and if that doesn't return anything use the mac-address-ctrl as > fallback. Yes you are right. In this case this wouldn't even influence any boots with u-boot which already set the correct mac-address property. I will fix this. Thanks, Markus
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index c39f077..b95c38b 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -34,6 +34,11 @@ Required properties: Optional properties: - dual_emac_res_vlan : Specifies VID to be used to segregate the ports - mac-address : Specifies slave MAC address +- ti,mac-address-ctrl : When cpsw-ctrl-macid support is compiledin, this can + be set to a phandle with one argument, see + cpsw-ctrl-macid.txt. If this method fails, cpsw falls + back to mac-address or random mac-address. + Note: "ti,hwmods" field is used to fetch the base address and irq resources from TI, omap hwmod data base during device registration. diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 5120d9c..382d793 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1804,9 +1804,16 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), PHY_ID_FMT, mdio->name, phyid); - mac_addr = of_get_mac_address(slave_node); - if (mac_addr) - memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN); + ret = cpsw_ctrl_macid_read(slave_node, slave_data->mac_addr); + if (ret) { + if (ret == -EPROBE_DEFER) + return ret; + + mac_addr = of_get_mac_address(slave_node); + if (mac_addr) + memcpy(slave_data->mac_addr, mac_addr, + ETH_ALEN); + } slave_data->phy_if = of_get_phy_mode(slave_node); @@ -1946,10 +1953,13 @@ static int cpsw_probe(struct platform_device *pdev) /* Select default pin state */ pinctrl_pm_select_default_state(&pdev->dev); - if (cpsw_probe_dt(&priv->data, pdev)) { + ret = cpsw_probe_dt(&priv->data, pdev); + if (ret == -EINVAL) { pr_err("cpsw: platform data missing\n"); ret = -ENODEV; goto clean_runtime_disable_ret; + } else if (ret) { + goto clean_runtime_disable_ret; } data = &priv->data; diff --git a/drivers/net/ethernet/ti/cpsw.h b/drivers/net/ethernet/ti/cpsw.h index 1b71067..222eebe 100644 --- a/drivers/net/ethernet/ti/cpsw.h +++ b/drivers/net/ethernet/ti/cpsw.h @@ -42,4 +42,6 @@ struct cpsw_platform_data { void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave); +int cpsw_ctrl_macid_read(struct device_node *np, u8 *mac_addr); + #endif /* __CPSW_H__ */
Use ctrl-macid driver to obtain the macids stored in the processor. This is only done when defined in DT. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> --- Documentation/devicetree/bindings/net/cpsw.txt | 5 +++++ drivers/net/ethernet/ti/cpsw.c | 18 ++++++++++++++---- drivers/net/ethernet/ti/cpsw.h | 2 ++ 3 files changed, 21 insertions(+), 4 deletions(-)