diff options
Diffstat (limited to 'drivers/net/fsl_enetc.c')
| -rw-r--r-- | drivers/net/fsl_enetc.c | 156 |
1 files changed, 135 insertions, 21 deletions
diff --git a/drivers/net/fsl_enetc.c b/drivers/net/fsl_enetc.c index 02c1ee70d9..f0d15febcc 100644 --- a/drivers/net/fsl_enetc.c +++ b/drivers/net/fsl_enetc.c @@ -14,6 +14,69 @@ #include "fsl_enetc.h" +#define ENETC_DRIVER_NAME "enetc_eth" + +/* + * sets the MAC address in IERB registers, this setting is persistent and + * carried over to Linux. + */ +static void enetc_set_ierb_primary_mac(struct udevice *dev, int devfn, + const u8 *enetaddr) +{ +#ifdef CONFIG_ARCH_LS1028A +/* + * LS1028A is the only part with IERB at this time and there are plans to change + * its structure, keep this LS1028A specific for now + */ +#define IERB_BASE 0x1f0800000ULL +#define IERB_PFMAC(pf, vf, n) (IERB_BASE + 0x8000 + (pf) * 0x100 + (vf) * 8 \ + + (n) * 4) + +static int ierb_fn_to_pf[] = {0, 1, 2, -1, -1, -1, 3}; + + u16 lower = *(const u16 *)(enetaddr + 4); + u32 upper = *(const u32 *)enetaddr; + + if (ierb_fn_to_pf[devfn] < 0) + return; + + out_le32(IERB_PFMAC(ierb_fn_to_pf[devfn], 0, 0), upper); + out_le32(IERB_PFMAC(ierb_fn_to_pf[devfn], 0, 1), (u32)lower); +#endif +} + +/* sets up primary MAC addresses in DT/IERB */ +void fdt_fixup_enetc_mac(void *blob) +{ + struct pci_child_platdata *ppdata; + struct eth_pdata *pdata; + struct udevice *dev; + struct uclass *uc; + char path[256]; + int offset; + int devfn; + + uclass_get(UCLASS_ETH, &uc); + uclass_foreach_dev(dev, uc) { + if (!dev->driver || !dev->driver->name || + strcmp(dev->driver->name, ENETC_DRIVER_NAME)) + continue; + + pdata = dev_get_platdata(dev); + ppdata = dev_get_parent_platdata(dev); + devfn = PCI_FUNC(ppdata->devfn); + + enetc_set_ierb_primary_mac(dev, devfn, pdata->enetaddr); + + snprintf(path, 256, "/soc/pcie@1f0000000/ethernet@%x,%x", + PCI_DEV(ppdata->devfn), PCI_FUNC(ppdata->devfn)); + offset = fdt_path_offset(blob, path); + if (offset < 0) + continue; + fdt_setprop(blob, offset, "mac-address", pdata->enetaddr, 6); + } +} + /* * Bind the device: * - set a more explicit name on the interface @@ -122,16 +185,34 @@ static int enetc_init_rgmii(struct udevice *dev) return 0; } -/* set up MAC and serdes for SXGMII */ -static int enetc_init_sxgmii(struct udevice *dev) +/* set up MAC configuration for the given interface type */ +static void enetc_setup_mac_iface(struct udevice *dev) { struct enetc_priv *priv = dev_get_priv(dev); u32 if_mode; - /* set ifmode to (US)XGMII */ - if_mode = enetc_read_port(priv, ENETC_PM_IF_MODE); - if_mode &= ~ENETC_PM_IF_IFMODE_MASK; - enetc_write_port(priv, ENETC_PM_IF_MODE, if_mode); + switch (priv->if_type) { + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + enetc_init_rgmii(dev); + break; + case PHY_INTERFACE_MODE_XGMII: + case PHY_INTERFACE_MODE_USXGMII: + case PHY_INTERFACE_MODE_XFI: + /* set ifmode to (US)XGMII */ + if_mode = enetc_read_port(priv, ENETC_PM_IF_MODE); + if_mode &= ~ENETC_PM_IF_IFMODE_MASK; + enetc_write_port(priv, ENETC_PM_IF_MODE, if_mode); + break; + }; +} + +/* set up serdes for SXGMII */ +static int enetc_init_sxgmii(struct udevice *dev) +{ + struct enetc_priv *priv = dev_get_priv(dev); if (!enetc_has_imdio(dev)) return 0; @@ -267,14 +348,57 @@ static int enetc_remove(struct udevice *dev) return 0; } -/* ENETC Port MAC address registers, accepts big-endian format */ -static void enetc_set_primary_mac_addr(struct enetc_priv *priv, const u8 *addr) +/* + * LS1028A is the only part with IERB at this time and there are plans to + * change its structure, keep this LS1028A specific for now. + */ +#define LS1028A_IERB_BASE 0x1f0800000ULL +#define LS1028A_IERB_PSIPMAR0(pf, vf) (LS1028A_IERB_BASE + 0x8000 \ + + (pf) * 0x100 + (vf) * 8) +#define LS1028A_IERB_PSIPMAR1(pf, vf) (LS1028A_IERB_PSIPMAR0(pf, vf) + 4) + +static int enetc_ls1028a_write_hwaddr(struct udevice *dev) { + struct pci_child_platdata *ppdata = dev_get_parent_platdata(dev); + const int devfn_to_pf[] = {0, 1, 2, -1, -1, -1, 3}; + struct eth_pdata *plat = dev_get_platdata(dev); + int devfn = PCI_FUNC(ppdata->devfn); + u8 *addr = plat->enetaddr; + u32 lower, upper; + int pf; + + if (devfn >= ARRAY_SIZE(devfn_to_pf)) + return 0; + + pf = devfn_to_pf[devfn]; + if (pf < 0) + return 0; + + lower = *(const u16 *)(addr + 4); + upper = *(const u32 *)addr; + + out_le32(LS1028A_IERB_PSIPMAR0(pf, 0), upper); + out_le32(LS1028A_IERB_PSIPMAR1(pf, 0), lower); + + return 0; +} + +static int enetc_write_hwaddr(struct udevice *dev) +{ + struct eth_pdata *plat = dev_get_platdata(dev); + struct enetc_priv *priv = dev_get_priv(dev); + u8 *addr = plat->enetaddr; + + if (IS_ENABLED(CONFIG_ARCH_LS1028A)) + return enetc_ls1028a_write_hwaddr(dev); + u16 lower = *(const u16 *)(addr + 4); u32 upper = *(const u32 *)addr; enetc_write_port(priv, ENETC_PSIPMAR0, upper); enetc_write_port(priv, ENETC_PSIPMAR1, lower); + + return 0; } /* Configure port parameters (# of rings, frame size, enable port) */ @@ -405,7 +529,6 @@ static void enetc_setup_rx_bdr(struct udevice *dev) */ static int enetc_start(struct udevice *dev) { - struct eth_pdata *plat = dev_get_platdata(dev); struct enetc_priv *priv = dev_get_priv(dev); /* reset and enable the PCI device */ @@ -413,23 +536,13 @@ static int enetc_start(struct udevice *dev) dm_pci_clrset_config16(dev, PCI_COMMAND, 0, PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); - if (!is_valid_ethaddr(plat->enetaddr)) { - enetc_dbg(dev, "invalid MAC address, generate random ...\n"); - net_random_ethaddr(plat->enetaddr); - } - enetc_set_primary_mac_addr(priv, plat->enetaddr); - enetc_enable_si_port(priv); /* setup Tx/Rx buffer descriptors */ enetc_setup_tx_bdr(dev); enetc_setup_rx_bdr(dev); - if (priv->if_type == PHY_INTERFACE_MODE_RGMII || - priv->if_type == PHY_INTERFACE_MODE_RGMII_ID || - priv->if_type == PHY_INTERFACE_MODE_RGMII_RXID || - priv->if_type == PHY_INTERFACE_MODE_RGMII_TXID) - enetc_init_rgmii(dev); + enetc_setup_mac_iface(dev); if (priv->phy) phy_startup(priv->phy); @@ -548,10 +661,11 @@ static const struct eth_ops enetc_ops = { .send = enetc_send, .recv = enetc_recv, .stop = enetc_stop, + .write_hwaddr = enetc_write_hwaddr, }; U_BOOT_DRIVER(eth_enetc) = { - .name = "enetc_eth", + .name = ENETC_DRIVER_NAME, .id = UCLASS_ETH, .bind = enetc_bind, .probe = enetc_probe, |