diff options
| -rw-r--r-- | Documentation/devicetree/bindings/net/stmmac.txt | 28 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 74 |
2 files changed, 100 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt new file mode 100644 index 00000000000..1f62623f8c3 --- /dev/null +++ b/Documentation/devicetree/bindings/net/stmmac.txt @@ -0,0 +1,28 @@ +* STMicroelectronics 10/100/1000 Ethernet driver (GMAC) + +Required properties: +- compatible: Should be "st,spear600-gmac" +- reg: Address and length of the register set for the device +- interrupt-parent: Should be the phandle for the interrupt controller + that services interrupts for this device +- interrupts: Should contain the STMMAC interrupts +- interrupt-names: Should contain the interrupt names "macirq" + "eth_wake_irq" if this interrupt is supported in the "interrupts" + property +- phy-mode: String, operation mode of the PHY interface. + Supported values are: "mii", "rmii", "gmii", "rgmii". + +Optional properties: +- mac-address: 6 bytes, mac address + +Examples: + + gmac0: ethernet@e0800000 { + compatible = "st,spear600-gmac"; + reg = <0xe0800000 0x8000>; + interrupt-parent = <&vic1>; + interrupts = <24 23>; + interrupt-names = "macirq", "eth_wake_irq"; + mac-address = [000000000000]; /* Filled in by U-Boot */ + phy-mode = "gmii"; + }; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 3aad9810237..116529a366b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -24,8 +24,48 @@ #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/of.h> +#include <linux/of_net.h> #include "stmmac.h" +#ifdef CONFIG_OF +static int __devinit stmmac_probe_config_dt(struct platform_device *pdev, + struct plat_stmmacenet_data *plat, + const char **mac) +{ + struct device_node *np = pdev->dev.of_node; + + if (!np) + return -ENODEV; + + *mac = of_get_mac_address(np); + plat->interface = of_get_phy_mode(np); + plat->mdio_bus_data = devm_kzalloc(&pdev->dev, + sizeof(struct stmmac_mdio_bus_data), + GFP_KERNEL); + + /* + * Currently only the properties needed on SPEAr600 + * are provided. All other properties should be added + * once needed on other platforms. + */ + if (of_device_is_compatible(np, "st,spear600-gmac")) { + plat->pbl = 8; + plat->has_gmac = 1; + plat->pmt = 1; + } + + return 0; +} +#else +static int __devinit stmmac_probe_config_dt(struct platform_device *pdev, + struct plat_stmmacenet_data *plat, + const char **mac) +{ + return -ENOSYS; +} +#endif /* CONFIG_OF */ + /** * stmmac_pltfr_probe * @pdev: platform device pointer @@ -39,7 +79,8 @@ static int stmmac_pltfr_probe(struct platform_device *pdev) struct resource *res; void __iomem *addr = NULL; struct stmmac_priv *priv = NULL; - struct plat_stmmacenet_data *plat_dat; + struct plat_stmmacenet_data *plat_dat = NULL; + const char *mac = NULL; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) @@ -58,7 +99,25 @@ static int stmmac_pltfr_probe(struct platform_device *pdev) ret = -ENOMEM; goto out_release_region; } - plat_dat = pdev->dev.platform_data; + + if (pdev->dev.of_node) { + plat_dat = devm_kzalloc(&pdev->dev, + sizeof(struct plat_stmmacenet_data), + GFP_KERNEL); + if (!plat_dat) { + pr_err("%s: ERROR: no memory", __func__); + ret = -ENOMEM; + goto out_unmap; + } + + ret = stmmac_probe_config_dt(pdev, plat_dat, &mac); + if (ret) { + pr_err("%s: main dt probe failed", __func__); + goto out_unmap; + } + } else { + plat_dat = pdev->dev.platform_data; + } /* Custom initialisation (if needed)*/ if (plat_dat->init) { @@ -73,6 +132,10 @@ static int stmmac_pltfr_probe(struct platform_device *pdev) goto out_unmap; } + /* Get MAC address if available (DT) */ + if (mac) + memcpy(priv->dev->dev_addr, mac, ETH_ALEN); + /* Get the MAC information */ priv->dev->irq = platform_get_irq_byname(pdev, "macirq"); if (priv->dev->irq == -ENXIO) { @@ -178,6 +241,12 @@ static const struct dev_pm_ops stmmac_pltfr_pm_ops = { static const struct dev_pm_ops stmmac_pltfr_pm_ops; #endif /* CONFIG_PM */ +static const struct of_device_id stmmac_dt_ids[] = { + { .compatible = "st,spear600-gmac", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, stmmac_dt_ids); + static struct platform_driver stmmac_driver = { .probe = stmmac_pltfr_probe, .remove = stmmac_pltfr_remove, @@ -185,6 +254,7 @@ static struct platform_driver stmmac_driver = { .name = STMMAC_RESOURCE_NAME, .owner = THIS_MODULE, .pm = &stmmac_pltfr_pm_ops, + .of_match_table = of_match_ptr(stmmac_dt_ids), }, }; |