| /* |
| * Driver for (BCM4706)? GBit MAC core on BCMA bus. |
| * |
| * Copyright (C) 2012 Rafał Miłecki <zajec5@gmail.com> |
| * |
| * Licensed under the GNU/GPL. See COPYING for details. |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/bcma/bcma.h> |
| #include <linux/brcmphy.h> |
| #include <linux/etherdevice.h> |
| #include "bgmac.h" |
| |
| static inline bool bgmac_is_bcm4707_family(struct bcma_device *core) |
| { |
| switch (core->bus->chipinfo.id) { |
| case BCMA_CHIP_ID_BCM4707: |
| case BCMA_CHIP_ID_BCM47094: |
| case BCMA_CHIP_ID_BCM53018: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /************************************************** |
| * BCMA bus ops |
| **************************************************/ |
| |
| static u32 bcma_bgmac_read(struct bgmac *bgmac, u16 offset) |
| { |
| return bcma_read32(bgmac->bcma.core, offset); |
| } |
| |
| static void bcma_bgmac_write(struct bgmac *bgmac, u16 offset, u32 value) |
| { |
| bcma_write32(bgmac->bcma.core, offset, value); |
| } |
| |
| static u32 bcma_bgmac_idm_read(struct bgmac *bgmac, u16 offset) |
| { |
| return bcma_aread32(bgmac->bcma.core, offset); |
| } |
| |
| static void bcma_bgmac_idm_write(struct bgmac *bgmac, u16 offset, u32 value) |
| { |
| return bcma_awrite32(bgmac->bcma.core, offset, value); |
| } |
| |
| static bool bcma_bgmac_clk_enabled(struct bgmac *bgmac) |
| { |
| return bcma_core_is_enabled(bgmac->bcma.core); |
| } |
| |
| static void bcma_bgmac_clk_enable(struct bgmac *bgmac, u32 flags) |
| { |
| bcma_core_enable(bgmac->bcma.core, flags); |
| } |
| |
| static void bcma_bgmac_cco_ctl_maskset(struct bgmac *bgmac, u32 offset, |
| u32 mask, u32 set) |
| { |
| struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc; |
| |
| bcma_chipco_chipctl_maskset(cc, offset, mask, set); |
| } |
| |
| static u32 bcma_bgmac_get_bus_clock(struct bgmac *bgmac) |
| { |
| struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc; |
| |
| return bcma_pmu_get_bus_clock(cc); |
| } |
| |
| static void bcma_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset, u32 mask, |
| u32 set) |
| { |
| bcma_maskset32(bgmac->bcma.cmn, offset, mask, set); |
| } |
| |
| static int bcma_phy_connect(struct bgmac *bgmac) |
| { |
| struct phy_device *phy_dev; |
| char bus_id[MII_BUS_ID_SIZE + 3]; |
| |
| /* Connect to the PHY */ |
| snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, bgmac->mii_bus->id, |
| bgmac->phyaddr); |
| phy_dev = phy_connect(bgmac->net_dev, bus_id, bgmac_adjust_link, |
| PHY_INTERFACE_MODE_MII); |
| if (IS_ERR(phy_dev)) { |
| dev_err(bgmac->dev, "PHY connection failed\n"); |
| return PTR_ERR(phy_dev); |
| } |
| |
| return 0; |
| } |
| |
| static const struct bcma_device_id bgmac_bcma_tbl[] = { |
| BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT, |
| BCMA_ANY_REV, BCMA_ANY_CLASS), |
| BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_MAC_GBIT, BCMA_ANY_REV, |
| BCMA_ANY_CLASS), |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl); |
| |
| /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */ |
| static int bgmac_probe(struct bcma_device *core) |
| { |
| struct bcma_chipinfo *ci = &core->bus->chipinfo; |
| struct ssb_sprom *sprom = &core->bus->sprom; |
| struct mii_bus *mii_bus; |
| struct bgmac *bgmac; |
| u8 *mac; |
| int err; |
| |
| bgmac = bgmac_alloc(&core->dev); |
| if (!bgmac) |
| return -ENOMEM; |
| |
| bgmac->bcma.core = core; |
| bgmac->dma_dev = core->dma_dev; |
| bgmac->irq = core->irq; |
| |
| bcma_set_drvdata(core, bgmac); |
| |
| switch (core->core_unit) { |
| case 0: |
| mac = sprom->et0mac; |
| break; |
| case 1: |
| mac = sprom->et1mac; |
| break; |
| case 2: |
| mac = sprom->et2mac; |
| break; |
| default: |
| dev_err(bgmac->dev, "Unsupported core_unit %d\n", |
| core->core_unit); |
| err = -ENOTSUPP; |
| goto err; |
| } |
| |
| ether_addr_copy(bgmac->net_dev->dev_addr, mac); |
| |
| /* On BCM4706 we need common core to access PHY */ |
| if (core->id.id == BCMA_CORE_4706_MAC_GBIT && |
| !core->bus->drv_gmac_cmn.core) { |
| dev_err(bgmac->dev, "GMAC CMN core not found (required for BCM4706)\n"); |
| err = -ENODEV; |
| goto err; |
| } |
| bgmac->bcma.cmn = core->bus->drv_gmac_cmn.core; |
| |
| switch (core->core_unit) { |
| case 0: |
| bgmac->phyaddr = sprom->et0phyaddr; |
| break; |
| case 1: |
| bgmac->phyaddr = sprom->et1phyaddr; |
| break; |
| case 2: |
| bgmac->phyaddr = sprom->et2phyaddr; |
| break; |
| } |
| bgmac->phyaddr &= BGMAC_PHY_MASK; |
| if (bgmac->phyaddr == BGMAC_PHY_MASK) { |
| dev_err(bgmac->dev, "No PHY found\n"); |
| err = -ENODEV; |
| goto err; |
| } |
| dev_info(bgmac->dev, "Found PHY addr: %d%s\n", bgmac->phyaddr, |
| bgmac->phyaddr == BGMAC_PHY_NOREGS ? " (NOREGS)" : ""); |
| |
| if (!bgmac_is_bcm4707_family(core) && |
| !(ci->id == BCMA_CHIP_ID_BCM53573 && core->core_unit == 1)) { |
| mii_bus = bcma_mdio_mii_register(bgmac); |
| if (IS_ERR(mii_bus)) { |
| err = PTR_ERR(mii_bus); |
| goto err; |
| } |
| |
| bgmac->mii_bus = mii_bus; |
| } |
| |
| if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) { |
| dev_err(bgmac->dev, "PCI setup not implemented\n"); |
| err = -ENOTSUPP; |
| goto err1; |
| } |
| |
| bgmac->has_robosw = !!(core->bus->sprom.boardflags_lo & |
| BGMAC_BFL_ENETROBO); |
| if (bgmac->has_robosw) |
| dev_warn(bgmac->dev, "Support for Roboswitch not implemented\n"); |
| |
| if (core->bus->sprom.boardflags_lo & BGMAC_BFL_ENETADM) |
| dev_warn(bgmac->dev, "Support for ADMtek ethernet switch not implemented\n"); |
| |
| /* Feature Flags */ |
| switch (core->bus->chipinfo.id) { |
| case BCMA_CHIP_ID_BCM5357: |
| bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; |
| bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; |
| bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1; |
| bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY; |
| if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47186) { |
| bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED; |
| bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII; |
| } |
| if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM5358) |
| bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_EPHYRMII; |
| break; |
| case BCMA_CHIP_ID_BCM53572: |
| bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; |
| bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; |
| bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1; |
| bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY; |
| if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47188) { |
| bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII; |
| bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED; |
| } |
| break; |
| case BCMA_CHIP_ID_BCM4749: |
| bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; |
| bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; |
| bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1; |
| bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY; |
| if (core->bus->chipinfo.pkg == 10) { |
| bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII; |
| bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED; |
| } |
| break; |
| case BCMA_CHIP_ID_BCM4716: |
| bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; |
| /* fallthrough */ |
| case BCMA_CHIP_ID_BCM47162: |
| bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL2; |
| bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; |
| break; |
| /* bcm4707_family */ |
| case BCMA_CHIP_ID_BCM4707: |
| case BCMA_CHIP_ID_BCM47094: |
| case BCMA_CHIP_ID_BCM53018: |
| bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; |
| bgmac->feature_flags |= BGMAC_FEAT_NO_RESET; |
| bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500; |
| break; |
| case BCMA_CHIP_ID_BCM53573: |
| bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; |
| bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; |
| if (ci->pkg == BCMA_PKG_ID_BCM47189) |
| bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED; |
| if (core->core_unit == 0) { |
| bgmac->feature_flags |= BGMAC_FEAT_CC4_IF_SW_TYPE; |
| if (ci->pkg == BCMA_PKG_ID_BCM47189) |
| bgmac->feature_flags |= |
| BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII; |
| } else if (core->core_unit == 1) { |
| bgmac->feature_flags |= BGMAC_FEAT_IRQ_ID_OOB_6; |
| bgmac->feature_flags |= BGMAC_FEAT_CC7_IF_TYPE_RGMII; |
| } |
| break; |
| default: |
| bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST; |
| bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK; |
| } |
| |
| if (!bgmac_is_bcm4707_family(core) && core->id.rev > 2) |
| bgmac->feature_flags |= BGMAC_FEAT_MISC_PLL_REQ; |
| |
| if (core->id.id == BCMA_CORE_4706_MAC_GBIT) { |
| bgmac->feature_flags |= BGMAC_FEAT_CMN_PHY_CTL; |
| bgmac->feature_flags |= BGMAC_FEAT_NO_CLR_MIB; |
| } |
| |
| if (core->id.rev >= 4) { |
| bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4; |
| bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP; |
| bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP; |
| } |
| |
| bgmac->read = bcma_bgmac_read; |
| bgmac->write = bcma_bgmac_write; |
| bgmac->idm_read = bcma_bgmac_idm_read; |
| bgmac->idm_write = bcma_bgmac_idm_write; |
| bgmac->clk_enabled = bcma_bgmac_clk_enabled; |
| bgmac->clk_enable = bcma_bgmac_clk_enable; |
| bgmac->cco_ctl_maskset = bcma_bgmac_cco_ctl_maskset; |
| bgmac->get_bus_clock = bcma_bgmac_get_bus_clock; |
| bgmac->cmn_maskset32 = bcma_bgmac_cmn_maskset32; |
| if (bgmac->mii_bus) |
| bgmac->phy_connect = bcma_phy_connect; |
| else |
| bgmac->phy_connect = bgmac_phy_connect_direct; |
| |
| err = bgmac_enet_probe(bgmac); |
| if (err) |
| goto err1; |
| |
| return 0; |
| |
| err1: |
| bcma_mdio_mii_unregister(bgmac->mii_bus); |
| err: |
| bcma_set_drvdata(core, NULL); |
| |
| return err; |
| } |
| |
| static void bgmac_remove(struct bcma_device *core) |
| { |
| struct bgmac *bgmac = bcma_get_drvdata(core); |
| |
| bcma_mdio_mii_unregister(bgmac->mii_bus); |
| bgmac_enet_remove(bgmac); |
| bcma_set_drvdata(core, NULL); |
| kfree(bgmac); |
| } |
| |
| static struct bcma_driver bgmac_bcma_driver = { |
| .name = KBUILD_MODNAME, |
| .id_table = bgmac_bcma_tbl, |
| .probe = bgmac_probe, |
| .remove = bgmac_remove, |
| }; |
| |
| static int __init bgmac_init(void) |
| { |
| int err; |
| |
| err = bcma_driver_register(&bgmac_bcma_driver); |
| if (err) |
| return err; |
| pr_info("Broadcom 47xx GBit MAC driver loaded\n"); |
| |
| return 0; |
| } |
| |
| static void __exit bgmac_exit(void) |
| { |
| bcma_driver_unregister(&bgmac_bcma_driver); |
| } |
| |
| module_init(bgmac_init) |
| module_exit(bgmac_exit) |
| |
| MODULE_AUTHOR("Rafał Miłecki"); |
| MODULE_LICENSE("GPL"); |