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path: root/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
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Diffstat (limited to 'drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c')
-rw-r--r--drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c108
1 files changed, 50 insertions, 58 deletions
diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c b/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
index 7c19c8e2bf91..6ce80cbcb48e 100644
--- a/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
@@ -12,11 +12,6 @@
#include <linux/brcmphy.h>
#include "bgmac.h"
-struct bcma_mdio {
- struct bcma_device *core;
- u8 phyaddr;
-};
-
static bool bcma_mdio_wait_value(struct bcma_device *core, u16 reg, u32 mask,
u32 value, int timeout)
{
@@ -37,7 +32,7 @@ static bool bcma_mdio_wait_value(struct bcma_device *core, u16 reg, u32 mask,
* PHY ops
**************************************************/
-static u16 bcma_mdio_phy_read(struct bcma_mdio *bcma_mdio, u8 phyaddr, u8 reg)
+static u16 bcma_mdio_phy_read(struct bgmac *bgmac, u8 phyaddr, u8 reg)
{
struct bcma_device *core;
u16 phy_access_addr;
@@ -56,12 +51,12 @@ static u16 bcma_mdio_phy_read(struct bcma_mdio *bcma_mdio, u8 phyaddr, u8 reg)
BUILD_BUG_ON(BGMAC_PC_MCT_SHIFT != BCMA_GMAC_CMN_PC_MCT_SHIFT);
BUILD_BUG_ON(BGMAC_PC_MTE != BCMA_GMAC_CMN_PC_MTE);
- if (bcma_mdio->core->id.id == BCMA_CORE_4706_MAC_GBIT) {
- core = bcma_mdio->core->bus->drv_gmac_cmn.core;
+ if (bgmac->bcma.core->id.id == BCMA_CORE_4706_MAC_GBIT) {
+ core = bgmac->bcma.core->bus->drv_gmac_cmn.core;
phy_access_addr = BCMA_GMAC_CMN_PHY_ACCESS;
phy_ctl_addr = BCMA_GMAC_CMN_PHY_CTL;
} else {
- core = bcma_mdio->core;
+ core = bgmac->bcma.core;
phy_access_addr = BGMAC_PHY_ACCESS;
phy_ctl_addr = BGMAC_PHY_CNTL;
}
@@ -87,7 +82,7 @@ static u16 bcma_mdio_phy_read(struct bcma_mdio *bcma_mdio, u8 phyaddr, u8 reg)
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphywr */
-static int bcma_mdio_phy_write(struct bcma_mdio *bcma_mdio, u8 phyaddr, u8 reg,
+static int bcma_mdio_phy_write(struct bgmac *bgmac, u8 phyaddr, u8 reg,
u16 value)
{
struct bcma_device *core;
@@ -95,12 +90,12 @@ static int bcma_mdio_phy_write(struct bcma_mdio *bcma_mdio, u8 phyaddr, u8 reg,
u16 phy_ctl_addr;
u32 tmp;
- if (bcma_mdio->core->id.id == BCMA_CORE_4706_MAC_GBIT) {
- core = bcma_mdio->core->bus->drv_gmac_cmn.core;
+ if (bgmac->bcma.core->id.id == BCMA_CORE_4706_MAC_GBIT) {
+ core = bgmac->bcma.core->bus->drv_gmac_cmn.core;
phy_access_addr = BCMA_GMAC_CMN_PHY_ACCESS;
phy_ctl_addr = BCMA_GMAC_CMN_PHY_CTL;
} else {
- core = bcma_mdio->core;
+ core = bgmac->bcma.core;
phy_access_addr = BGMAC_PHY_ACCESS;
phy_ctl_addr = BGMAC_PHY_CNTL;
}
@@ -110,8 +105,8 @@ static int bcma_mdio_phy_write(struct bcma_mdio *bcma_mdio, u8 phyaddr, u8 reg,
tmp |= phyaddr;
bcma_write32(core, phy_ctl_addr, tmp);
- bcma_write32(bcma_mdio->core, BGMAC_INT_STATUS, BGMAC_IS_MDIO);
- if (bcma_read32(bcma_mdio->core, BGMAC_INT_STATUS) & BGMAC_IS_MDIO)
+ bcma_write32(bgmac->bcma.core, BGMAC_INT_STATUS, BGMAC_IS_MDIO);
+ if (bcma_read32(bgmac->bcma.core, BGMAC_INT_STATUS) & BGMAC_IS_MDIO)
dev_warn(&core->dev, "Error setting MDIO int\n");
tmp = BGMAC_PA_START;
@@ -132,57 +127,67 @@ static int bcma_mdio_phy_write(struct bcma_mdio *bcma_mdio, u8 phyaddr, u8 reg,
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyinit */
-static void bcma_mdio_phy_init(struct bcma_mdio *bcma_mdio)
+static void bcma_mdio_phy_init(struct bgmac *bgmac)
{
- struct bcma_chipinfo *ci = &bcma_mdio->core->bus->chipinfo;
+ struct bcma_chipinfo *ci = &bgmac->bcma.core->bus->chipinfo;
u8 i;
+ /* For some legacy hardware we do chipset-based PHY initialization here
+ * without even detecting PHY ID. It's hacky and should be cleaned as
+ * soon as someone can test it.
+ */
if (ci->id == BCMA_CHIP_ID_BCM5356) {
for (i = 0; i < 5; i++) {
- bcma_mdio_phy_write(bcma_mdio, i, 0x1f, 0x008b);
- bcma_mdio_phy_write(bcma_mdio, i, 0x15, 0x0100);
- bcma_mdio_phy_write(bcma_mdio, i, 0x1f, 0x000f);
- bcma_mdio_phy_write(bcma_mdio, i, 0x12, 0x2aaa);
- bcma_mdio_phy_write(bcma_mdio, i, 0x1f, 0x000b);
+ bcma_mdio_phy_write(bgmac, i, 0x1f, 0x008b);
+ bcma_mdio_phy_write(bgmac, i, 0x15, 0x0100);
+ bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000f);
+ bcma_mdio_phy_write(bgmac, i, 0x12, 0x2aaa);
+ bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b);
}
+ return;
}
if ((ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg != 10) ||
(ci->id == BCMA_CHIP_ID_BCM4749 && ci->pkg != 10) ||
(ci->id == BCMA_CHIP_ID_BCM53572 && ci->pkg != 9)) {
- struct bcma_drv_cc *cc = &bcma_mdio->core->bus->drv_cc;
+ struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
bcma_chipco_chipctl_maskset(cc, 2, ~0xc0000000, 0);
bcma_chipco_chipctl_maskset(cc, 4, ~0x80000000, 0);
for (i = 0; i < 5; i++) {
- bcma_mdio_phy_write(bcma_mdio, i, 0x1f, 0x000f);
- bcma_mdio_phy_write(bcma_mdio, i, 0x16, 0x5284);
- bcma_mdio_phy_write(bcma_mdio, i, 0x1f, 0x000b);
- bcma_mdio_phy_write(bcma_mdio, i, 0x17, 0x0010);
- bcma_mdio_phy_write(bcma_mdio, i, 0x1f, 0x000f);
- bcma_mdio_phy_write(bcma_mdio, i, 0x16, 0x5296);
- bcma_mdio_phy_write(bcma_mdio, i, 0x17, 0x1073);
- bcma_mdio_phy_write(bcma_mdio, i, 0x17, 0x9073);
- bcma_mdio_phy_write(bcma_mdio, i, 0x16, 0x52b6);
- bcma_mdio_phy_write(bcma_mdio, i, 0x17, 0x9273);
- bcma_mdio_phy_write(bcma_mdio, i, 0x1f, 0x000b);
+ bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000f);
+ bcma_mdio_phy_write(bgmac, i, 0x16, 0x5284);
+ bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b);
+ bcma_mdio_phy_write(bgmac, i, 0x17, 0x0010);
+ bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000f);
+ bcma_mdio_phy_write(bgmac, i, 0x16, 0x5296);
+ bcma_mdio_phy_write(bgmac, i, 0x17, 0x1073);
+ bcma_mdio_phy_write(bgmac, i, 0x17, 0x9073);
+ bcma_mdio_phy_write(bgmac, i, 0x16, 0x52b6);
+ bcma_mdio_phy_write(bgmac, i, 0x17, 0x9273);
+ bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b);
}
+ return;
}
+
+ /* For all other hw do initialization using PHY subsystem. */
+ if (bgmac->net_dev && bgmac->net_dev->phydev)
+ phy_init_hw(bgmac->net_dev->phydev);
}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyreset */
static int bcma_mdio_phy_reset(struct mii_bus *bus)
{
- struct bcma_mdio *bcma_mdio = bus->priv;
- u8 phyaddr = bcma_mdio->phyaddr;
+ struct bgmac *bgmac = bus->priv;
+ u8 phyaddr = bgmac->phyaddr;
- if (bcma_mdio->phyaddr == BGMAC_PHY_NOREGS)
+ if (phyaddr == BGMAC_PHY_NOREGS)
return 0;
- bcma_mdio_phy_write(bcma_mdio, phyaddr, MII_BMCR, BMCR_RESET);
+ bcma_mdio_phy_write(bgmac, phyaddr, MII_BMCR, BMCR_RESET);
udelay(100);
- if (bcma_mdio_phy_read(bcma_mdio, phyaddr, MII_BMCR) & BMCR_RESET)
- dev_err(&bcma_mdio->core->dev, "PHY reset failed\n");
- bcma_mdio_phy_init(bcma_mdio);
+ if (bcma_mdio_phy_read(bgmac, phyaddr, MII_BMCR) & BMCR_RESET)
+ dev_err(bgmac->dev, "PHY reset failed\n");
+ bcma_mdio_phy_init(bgmac);
return 0;
}
@@ -202,16 +207,12 @@ static int bcma_mdio_mii_write(struct mii_bus *bus, int mii_id, int regnum,
return bcma_mdio_phy_write(bus->priv, mii_id, regnum, value);
}
-struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr)
+struct mii_bus *bcma_mdio_mii_register(struct bgmac *bgmac)
{
- struct bcma_mdio *bcma_mdio;
+ struct bcma_device *core = bgmac->bcma.core;
struct mii_bus *mii_bus;
int err;
- bcma_mdio = kzalloc(sizeof(*bcma_mdio), GFP_KERNEL);
- if (!bcma_mdio)
- return ERR_PTR(-ENOMEM);
-
mii_bus = mdiobus_alloc();
if (!mii_bus) {
err = -ENOMEM;
@@ -221,15 +222,12 @@ struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr)
mii_bus->name = "bcma_mdio mii bus";
sprintf(mii_bus->id, "%s-%d-%d", "bcma_mdio", core->bus->num,
core->core_unit);
- mii_bus->priv = bcma_mdio;
+ mii_bus->priv = bgmac;
mii_bus->read = bcma_mdio_mii_read;
mii_bus->write = bcma_mdio_mii_write;
mii_bus->reset = bcma_mdio_phy_reset;
mii_bus->parent = &core->dev;
- mii_bus->phy_mask = ~(1 << phyaddr);
-
- bcma_mdio->core = core;
- bcma_mdio->phyaddr = phyaddr;
+ mii_bus->phy_mask = ~(1 << bgmac->phyaddr);
err = mdiobus_register(mii_bus);
if (err) {
@@ -242,23 +240,17 @@ struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr)
err_free_bus:
mdiobus_free(mii_bus);
err:
- kfree(bcma_mdio);
return ERR_PTR(err);
}
EXPORT_SYMBOL_GPL(bcma_mdio_mii_register);
void bcma_mdio_mii_unregister(struct mii_bus *mii_bus)
{
- struct bcma_mdio *bcma_mdio;
-
if (!mii_bus)
return;
- bcma_mdio = mii_bus->priv;
-
mdiobus_unregister(mii_bus);
mdiobus_free(mii_bus);
- kfree(bcma_mdio);
}
EXPORT_SYMBOL_GPL(bcma_mdio_mii_unregister);
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-18 23:45:46 +0100