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 <[email protected]>
> ---
> 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__ */
> --
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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