2016-07-08 02:08:57 +03:00
|
|
|
/*
|
|
|
|
* 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>
|
2017-03-16 18:48:58 +03:00
|
|
|
#include <linux/of_net.h>
|
2016-07-08 02:08:57 +03:00
|
|
|
#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);
|
|
|
|
}
|
|
|
|
|
2016-11-04 08:11:00 +03:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2016-07-08 02:08:57 +03:00
|
|
|
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)
|
|
|
|
{
|
2016-08-18 00:00:30 +03:00
|
|
|
struct bcma_chipinfo *ci = &core->bus->chipinfo;
|
2016-07-08 02:08:57 +03:00
|
|
|
struct ssb_sprom *sprom = &core->bus->sprom;
|
|
|
|
struct mii_bus *mii_bus;
|
|
|
|
struct bgmac *bgmac;
|
2017-03-16 18:48:58 +03:00
|
|
|
const u8 *mac = NULL;
|
2016-07-08 02:08:57 +03:00
|
|
|
int err;
|
|
|
|
|
2017-01-31 21:37:54 +03:00
|
|
|
bgmac = bgmac_alloc(&core->dev);
|
2016-07-08 02:08:57 +03:00
|
|
|
if (!bgmac)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
bgmac->bcma.core = core;
|
|
|
|
bgmac->dma_dev = core->dma_dev;
|
|
|
|
bgmac->irq = core->irq;
|
|
|
|
|
|
|
|
bcma_set_drvdata(core, bgmac);
|
|
|
|
|
2017-03-16 18:48:58 +03:00
|
|
|
if (bgmac->dev->of_node)
|
|
|
|
mac = of_get_mac_address(bgmac->dev->of_node);
|
|
|
|
|
|
|
|
/* If no MAC address assigned via device tree, check SPROM */
|
|
|
|
if (!mac) {
|
|
|
|
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;
|
|
|
|
}
|
2016-07-08 02:08:57 +03:00
|
|
|
}
|
|
|
|
|
2017-02-16 17:11:19 +03:00
|
|
|
ether_addr_copy(bgmac->net_dev->dev_addr, mac);
|
2016-07-08 02:08:57 +03:00
|
|
|
|
|
|
|
/* 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)" : "");
|
|
|
|
|
2016-08-18 00:00:30 +03:00
|
|
|
if (!bgmac_is_bcm4707_family(core) &&
|
|
|
|
!(ci->id == BCMA_CHIP_ID_BCM53573 && core->core_unit == 1)) {
|
2017-10-12 11:21:26 +03:00
|
|
|
struct phy_device *phydev;
|
|
|
|
|
2017-01-31 21:37:55 +03:00
|
|
|
mii_bus = bcma_mdio_mii_register(bgmac);
|
2016-08-17 16:37:14 +03:00
|
|
|
if (IS_ERR(mii_bus)) {
|
2016-07-08 02:08:57 +03:00
|
|
|
err = PTR_ERR(mii_bus);
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
bgmac->mii_bus = mii_bus;
|
2017-10-12 11:21:26 +03:00
|
|
|
|
|
|
|
phydev = mdiobus_get_phy(bgmac->mii_bus, bgmac->phyaddr);
|
|
|
|
if (ci->id == BCMA_CHIP_ID_BCM53573 && phydev &&
|
|
|
|
(phydev->drv->phy_id & phydev->drv->phy_id_mask) == PHY_ID_BCM54210E)
|
|
|
|
phydev->dev_flags |= PHY_BRCM_EN_MASTER_MODE;
|
2016-07-08 02:08:57 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) {
|
|
|
|
dev_err(bgmac->dev, "PCI setup not implemented\n");
|
|
|
|
err = -ENOTSUPP;
|
|
|
|
goto err1;
|
|
|
|
}
|
|
|
|
|
2017-02-28 21:51:00 +03:00
|
|
|
bgmac->has_robosw = !!(sprom->boardflags_lo & BGMAC_BFL_ENETROBO);
|
2016-07-08 02:08:57 +03:00
|
|
|
if (bgmac->has_robosw)
|
|
|
|
dev_warn(bgmac->dev, "Support for Roboswitch not implemented\n");
|
|
|
|
|
2017-02-28 21:51:00 +03:00
|
|
|
if (sprom->boardflags_lo & BGMAC_BFL_ENETADM)
|
2016-07-08 02:08:57 +03:00
|
|
|
dev_warn(bgmac->dev, "Support for ADMtek ethernet switch not implemented\n");
|
|
|
|
|
|
|
|
/* Feature Flags */
|
2017-02-28 21:51:00 +03:00
|
|
|
switch (ci->id) {
|
|
|
|
/* BCM 471X/535X family */
|
|
|
|
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;
|
2016-07-08 02:08:57 +03:00
|
|
|
case BCMA_CHIP_ID_BCM5357:
|
2017-02-28 21:51:00 +03:00
|
|
|
case BCMA_CHIP_ID_BCM53572:
|
2016-07-08 02:08:57 +03:00
|
|
|
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;
|
2017-02-28 21:51:00 +03:00
|
|
|
if (ci->pkg == BCMA_PKG_ID_BCM47188 ||
|
|
|
|
ci->pkg == BCMA_PKG_ID_BCM47186) {
|
2016-07-08 02:08:57 +03:00
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
|
2017-02-28 21:51:00 +03:00
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
|
2016-07-08 02:08:57 +03:00
|
|
|
}
|
2017-02-28 21:51:00 +03:00
|
|
|
if (ci->pkg == BCMA_PKG_ID_BCM5358)
|
2016-07-08 02:08:57 +03:00
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_EPHYRMII;
|
|
|
|
break;
|
2017-02-28 21:51:00 +03:00
|
|
|
case BCMA_CHIP_ID_BCM53573:
|
2016-07-08 02:08:57 +03:00
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
|
2017-02-28 21:51:00 +03:00
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
|
|
|
|
if (ci->pkg == BCMA_PKG_ID_BCM47189)
|
2016-07-08 02:08:57 +03:00
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
|
2017-02-28 21:51:00 +03:00
|
|
|
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;
|
2016-07-08 02:08:57 +03:00
|
|
|
}
|
|
|
|
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;
|
2017-02-28 21:51:00 +03:00
|
|
|
if (ci->pkg == 10) {
|
2016-07-08 02:08:57 +03:00
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
|
|
|
|
bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
|
|
|
|
}
|
|
|
|
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;
|
|
|
|
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;
|
2016-11-04 08:11:00 +03:00
|
|
|
if (bgmac->mii_bus)
|
|
|
|
bgmac->phy_connect = bcma_phy_connect;
|
|
|
|
else
|
|
|
|
bgmac->phy_connect = bgmac_phy_connect_direct;
|
2016-07-08 02:08:57 +03:00
|
|
|
|
|
|
|
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");
|