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Merge branch 'mv643xx_eth'

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Florian Fainelli says:

====================
This patch converts the mv643xx_eth driver to use the mvmdio MDIO bus driver
instead of rolling its own implementation. As a result, all users of this
mv643xx_eth driver are converted to register an "orion-mdio" platform_device.
The mvmdio driver is also updated to support an interrupt line which reports
SMI error/completion, and to allow traditionnal platform device registration
instead of just device tree.

David, I think it makes sense for you to merge all of this, since we do
not want the architecture files to be desynchronized from the mv643xx_eth to
avoid runtime breakage. The potential for merge conflicts should be very small.
====================

Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2013-03-22 10:25:25 -04:00
commit 9b924dbd5e
9 changed files with 187 additions and 239 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
View File

@ -9,6 +9,9 @@ Required properties:
- compatible: "marvell,orion-mdio"
- reg: address and length of the SMI register
Optional properties:
- interrupts: interrupt line number for the SMI error/done interrupt
The child nodes of the MDIO driver are the individual PHY devices
connected to this MDIO bus. They must have a "reg" property given the
PHY address on the MDIO bus.

54
arch/arm/plat-orion/common.c
View File

@ -238,6 +238,7 @@ static __init void ge_complete(
struct mv643xx_eth_shared_platform_data *orion_ge_shared_data,
struct resource *orion_ge_resource, unsigned long irq,
struct platform_device *orion_ge_shared,
struct platform_device *orion_ge_mvmdio,
struct mv643xx_eth_platform_data *eth_data,
struct platform_device *orion_ge)
{
@ -247,6 +248,8 @@ static __init void ge_complete(
orion_ge->dev.platform_data = eth_data;
platform_device_register(orion_ge_shared);
if (orion_ge_mvmdio)
platform_device_register(orion_ge_mvmdio);
platform_device_register(orion_ge);
}
@ -258,8 +261,6 @@ struct mv643xx_eth_shared_platform_data orion_ge00_shared_data;
static struct resource orion_ge00_shared_resources[] = {
{
.name = "ge00 base",
}, {
.name = "ge00 err irq",
},
};
@ -271,6 +272,19 @@ static struct platform_device orion_ge00_shared = {
},
};
static struct resource orion_ge_mvmdio_resources[] = {
{
.name = "ge00 mvmdio base",
}, {
.name = "ge00 mvmdio err irq",
},
};
static struct platform_device orion_ge_mvmdio = {
.name = "orion-mdio",
.id = -1,
};
static struct resource orion_ge00_resources[] = {
{
.name = "ge00 irq",
@ -295,26 +309,25 @@ void __init orion_ge00_init(struct mv643xx_eth_platform_data *eth_data,
unsigned int tx_csum_limit)
{
fill_resources(&orion_ge00_shared, orion_ge00_shared_resources,
mapbase + 0x2000, SZ_16K - 1, irq_err);
mapbase + 0x2000, SZ_16K - 1, NO_IRQ);
fill_resources(&orion_ge_mvmdio, orion_ge_mvmdio_resources,
mapbase + 0x2004, 0x84 - 1, irq_err);
orion_ge00_shared_data.tx_csum_limit = tx_csum_limit;
ge_complete(&orion_ge00_shared_data,
orion_ge00_resources, irq, &orion_ge00_shared,
&orion_ge_mvmdio,
eth_data, &orion_ge00);
}
/*****************************************************************************
* GE01
****************************************************************************/
struct mv643xx_eth_shared_platform_data orion_ge01_shared_data = {
.shared_smi = &orion_ge00_shared,
};
struct mv643xx_eth_shared_platform_data orion_ge01_shared_data;
static struct resource orion_ge01_shared_resources[] = {
{
.name = "ge01 base",
}, {
.name = "ge01 err irq",
},
}
};
static struct platform_device orion_ge01_shared = {
@ -349,26 +362,23 @@ void __init orion_ge01_init(struct mv643xx_eth_platform_data *eth_data,
unsigned int tx_csum_limit)
{
fill_resources(&orion_ge01_shared, orion_ge01_shared_resources,
mapbase + 0x2000, SZ_16K - 1, irq_err);
mapbase + 0x2000, SZ_16K - 1, NO_IRQ);
orion_ge01_shared_data.tx_csum_limit = tx_csum_limit;
ge_complete(&orion_ge01_shared_data,
orion_ge01_resources, irq, &orion_ge01_shared,
NULL,
eth_data, &orion_ge01);
}
/*****************************************************************************
* GE10
****************************************************************************/
struct mv643xx_eth_shared_platform_data orion_ge10_shared_data = {
.shared_smi = &orion_ge00_shared,
};
struct mv643xx_eth_shared_platform_data orion_ge10_shared_data;
static struct resource orion_ge10_shared_resources[] = {
{
.name = "ge10 base",
}, {
.name = "ge10 err irq",
},
}
};
static struct platform_device orion_ge10_shared = {
@ -402,24 +412,21 @@ void __init orion_ge10_init(struct mv643xx_eth_platform_data *eth_data,
unsigned long irq_err)
{
fill_resources(&orion_ge10_shared, orion_ge10_shared_resources,
mapbase + 0x2000, SZ_16K - 1, irq_err);
mapbase + 0x2000, SZ_16K - 1, NO_IRQ);
ge_complete(&orion_ge10_shared_data,
orion_ge10_resources, irq, &orion_ge10_shared,
NULL,
eth_data, &orion_ge10);
}
/*****************************************************************************
* GE11
****************************************************************************/
struct mv643xx_eth_shared_platform_data orion_ge11_shared_data = {
.shared_smi = &orion_ge00_shared,
};
struct mv643xx_eth_shared_platform_data orion_ge11_shared_data;
static struct resource orion_ge11_shared_resources[] = {
{
.name = "ge11 base",
}, {
.name = "ge11 err irq",
},
};
@ -454,9 +461,10 @@ void __init orion_ge11_init(struct mv643xx_eth_platform_data *eth_data,
unsigned long irq_err)
{
fill_resources(&orion_ge11_shared, orion_ge11_shared_resources,
mapbase + 0x2000, SZ_16K - 1, irq_err);
mapbase + 0x2000, SZ_16K - 1, NO_IRQ);
ge_complete(&orion_ge11_shared_data,
orion_ge11_resources, irq, &orion_ge11_shared,
NULL,
eth_data, &orion_ge11);
}

20
arch/powerpc/platforms/chrp/pegasos_eth.c
View File

@ -47,6 +47,25 @@ static struct platform_device mv643xx_eth_shared_device = {
.resource = mv643xx_eth_shared_resources,
};
/*
* The orion mdio driver only covers shared + 0x4 up to shared + 0x84 - 1
*/
static struct resource mv643xx_eth_mvmdio_resources[] = {
[0] = {
.name = "ethernet mdio base",
.start = 0xf1000000 + MV643XX_ETH_SHARED_REGS + 0x4,
.end = 0xf1000000 + MV643XX_ETH_SHARED_REGS + 0x83,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device mv643xx_eth_mvmdio_device = {
.name = "orion-mdio",
.id = -1,
.num_resources = ARRAY_SIZE(mv643xx_eth_mvmdio_resources),
.resource = mv643xx_eth_shared_resources,
};
static struct resource mv643xx_eth_port1_resources[] = {
[0] = {
.name = "eth port1 irq",
@ -82,6 +101,7 @@ static struct platform_device eth_port1_device = {
static struct platform_device *mv643xx_eth_pd_devs[] __initdata = {
&mv643xx_eth_shared_device,
&mv643xx_eth_mvmdio_device,
&eth_port1_device,
};

16
arch/powerpc/sysdev/mv64x60_dev.c
View File

@ -214,15 +214,27 @@ static struct platform_device * __init mv64x60_eth_register_shared_pdev(
struct device_node *np, int id)
{
struct platform_device *pdev;
struct resource r[1];
struct resource r[2];
int err;
err = of_address_to_resource(np, 0, &r[0]);
if (err)
return ERR_PTR(err);
/* register an orion mdio bus driver */
r[1].start = r[0].start + 0x4;
r[1].end = r[0].start + 0x84 - 1;
r[1].flags = IORESOURCE_MEM;
if (id == 0) {
pdev = platform_device_register_simple("orion-mdio", -1, &r[1], 1);
if (!pdev)
return pdev;
}
pdev = platform_device_register_simple(MV643XX_ETH_SHARED_NAME, id,
r, 1);
&r[0], 1);
return pdev;
}

5
drivers/net/ethernet/marvell/Kconfig
View File

@ -23,6 +23,7 @@ config MV643XX_ETH
depends on (MV64X60 || PPC32 || PLAT_ORION) && INET
select INET_LRO
select PHYLIB
select MVMDIO
---help---
This driver supports the gigabit ethernet MACs in the
Marvell Discovery PPC/MIPS chipset family (MV643XX) and
@ -38,9 +39,7 @@ config MVMDIO
interface units of the Marvell EBU SoCs (Kirkwood, Orion5x,
Dove, Armada 370 and Armada XP).
For now, this driver is only needed for the MVNETA driver
(used on Armada 370 and XP), but it could be used in the
future by the MV643XX_ETH driver.
This driver is used by the MV643XX_ETH and MVNETA drivers.
config MVNETA
tristate "Marvell Armada 370/XP network interface support"

2
drivers/net/ethernet/marvell/Makefile
View File

@ -2,8 +2,8 @@
# Makefile for the Marvell device drivers.
#
obj-$(CONFIG_MV643XX_ETH) += mv643xx_eth.o
obj-$(CONFIG_MVMDIO) += mvmdio.o
obj-$(CONFIG_MV643XX_ETH) += mv643xx_eth.o
obj-$(CONFIG_MVNETA) += mvneta.o
obj-$(CONFIG_PXA168_ETH) += pxa168_eth.o
obj-$(CONFIG_SKGE) += skge.o

193
drivers/net/ethernet/marvell/mv643xx_eth.c
View File

@ -69,14 +69,6 @@ static char mv643xx_eth_driver_version[] = "1.4";
* Registers shared between all ports.
*/
#define PHY_ADDR 0x0000
#define SMI_REG 0x0004
#define SMI_BUSY 0x10000000
#define SMI_READ_VALID 0x08000000
#define SMI_OPCODE_READ 0x04000000
#define SMI_OPCODE_WRITE 0x00000000
#define ERR_INT_CAUSE 0x0080
#define ERR_INT_SMI_DONE 0x00000010
#define ERR_INT_MASK 0x0084
#define WINDOW_BASE(w) (0x0200 + ((w) << 3))
#define WINDOW_SIZE(w) (0x0204 + ((w) << 3))
#define WINDOW_REMAP_HIGH(w) (0x0280 + ((w) << 2))
@ -265,25 +257,6 @@ struct mv643xx_eth_shared_private {
*/
void __iomem *base;
/*
* Points at the right SMI instance to use.
*/
struct mv643xx_eth_shared_private *smi;
/*
* Provides access to local SMI interface.
*/
struct mii_bus *smi_bus;
/*
* If we have access to the error interrupt pin (which is
* somewhat misnamed as it not only reflects internal errors
* but also reflects SMI completion), use that to wait for
* SMI access completion instead of polling the SMI busy bit.
*/
int err_interrupt;
wait_queue_head_t smi_busy_wait;
/*
* Per-port MBUS window access register value.
*/
@ -1122,97 +1095,6 @@ out_write:
wrlp(mp, PORT_SERIAL_CONTROL, pscr);
}
static irqreturn_t mv643xx_eth_err_irq(int irq, void *dev_id)
{
struct mv643xx_eth_shared_private *msp = dev_id;
if (readl(msp->base + ERR_INT_CAUSE) & ERR_INT_SMI_DONE) {
writel(~ERR_INT_SMI_DONE, msp->base + ERR_INT_CAUSE);
wake_up(&msp->smi_busy_wait);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
static int smi_is_done(struct mv643xx_eth_shared_private *msp)
{
return !(readl(msp->base + SMI_REG) & SMI_BUSY);
}
static int smi_wait_ready(struct mv643xx_eth_shared_private *msp)
{
if (msp->err_interrupt == NO_IRQ) {
int i;
for (i = 0; !smi_is_done(msp); i++) {
if (i == 10)
return -ETIMEDOUT;
msleep(10);
}
return 0;
}
if (!smi_is_done(msp)) {
wait_event_timeout(msp->smi_busy_wait, smi_is_done(msp),
msecs_to_jiffies(100));
if (!smi_is_done(msp))
return -ETIMEDOUT;
}
return 0;
}
static int smi_bus_read(struct mii_bus *bus, int addr, int reg)
{
struct mv643xx_eth_shared_private *msp = bus->priv;
void __iomem *smi_reg = msp->base + SMI_REG;
int ret;
if (smi_wait_ready(msp)) {
pr_warn("SMI bus busy timeout\n");
return -ETIMEDOUT;
}
writel(SMI_OPCODE_READ | (reg << 21) | (addr << 16), smi_reg);
if (smi_wait_ready(msp)) {
pr_warn("SMI bus busy timeout\n");
return -ETIMEDOUT;
}
ret = readl(smi_reg);
if (!(ret & SMI_READ_VALID)) {
pr_warn("SMI bus read not valid\n");
return -ENODEV;
}
return ret & 0xffff;
}
static int smi_bus_write(struct mii_bus *bus, int addr, int reg, u16 val)
{
struct mv643xx_eth_shared_private *msp = bus->priv;
void __iomem *smi_reg = msp->base + SMI_REG;
if (smi_wait_ready(msp)) {
pr_warn("SMI bus busy timeout\n");
return -ETIMEDOUT;
}
writel(SMI_OPCODE_WRITE | (reg << 21) |
(addr << 16) | (val & 0xffff), smi_reg);
if (smi_wait_ready(msp)) {
pr_warn("SMI bus busy timeout\n");
return -ETIMEDOUT;
}
return 0;
}
/* statistics ***************************************************************/
static struct net_device_stats *mv643xx_eth_get_stats(struct net_device *dev)
{
@ -2687,47 +2569,6 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
if (msp->base == NULL)
goto out_free;
/*
* Set up and register SMI bus.
*/
if (pd == NULL || pd->shared_smi == NULL) {
msp->smi_bus = mdiobus_alloc();
if (msp->smi_bus == NULL)
goto out_unmap;
msp->smi_bus->priv = msp;
msp->smi_bus->name = "mv643xx_eth smi";
msp->smi_bus->read = smi_bus_read;
msp->smi_bus->write = smi_bus_write,
snprintf(msp->smi_bus->id, MII_BUS_ID_SIZE, "%s-%d",
pdev->name, pdev->id);
msp->smi_bus->parent = &pdev->dev;
msp->smi_bus->phy_mask = 0xffffffff;
if (mdiobus_register(msp->smi_bus) < 0)
goto out_free_mii_bus;
msp->smi = msp;
} else {
msp->smi = platform_get_drvdata(pd->shared_smi);
}
msp->err_interrupt = NO_IRQ;
init_waitqueue_head(&msp->smi_busy_wait);
/*
* Check whether the error interrupt is hooked up.
*/
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res != NULL) {
int err;
err = request_irq(res->start, mv643xx_eth_err_irq,
IRQF_SHARED, "mv643xx_eth", msp);
if (!err) {
writel(ERR_INT_SMI_DONE, msp->base + ERR_INT_MASK);
msp->err_interrupt = res->start;
}
}
/*
* (Re-)program MBUS remapping windows if we are asked to.
*/
@ -2743,10 +2584,6 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
return 0;
out_free_mii_bus:
mdiobus_free(msp->smi_bus);
out_unmap:
iounmap(msp->base);
out_free:
kfree(msp);
out:
@ -2756,14 +2593,7 @@ out:
static int mv643xx_eth_shared_remove(struct platform_device *pdev)
{
struct mv643xx_eth_shared_private *msp = platform_get_drvdata(pdev);
struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data;
if (pd == NULL || pd->shared_smi == NULL) {
mdiobus_unregister(msp->smi_bus);
mdiobus_free(msp->smi_bus);
}
if (msp->err_interrupt != NO_IRQ)
free_irq(msp->err_interrupt, msp);
iounmap(msp->base);
kfree(msp);
@ -2826,14 +2656,21 @@ static void set_params(struct mv643xx_eth_private *mp,
mp->txq_count = pd->tx_queue_count ? : 1;
}
static void mv643xx_eth_adjust_link(struct net_device *dev)
{
struct mv643xx_eth_private *mp = netdev_priv(dev);
mv643xx_adjust_pscr(mp);
}
static struct phy_device *phy_scan(struct mv643xx_eth_private *mp,
int phy_addr)
{
struct mii_bus *bus = mp->shared->smi->smi_bus;
struct phy_device *phydev;
int start;
int num;
int i;
char phy_id[MII_BUS_ID_SIZE + 3];
if (phy_addr == MV643XX_ETH_PHY_ADDR_DEFAULT) {
start = phy_addr_get(mp) & 0x1f;
@ -2843,17 +2680,19 @@ static struct phy_device *phy_scan(struct mv643xx_eth_private *mp,
num = 1;
}
/* Attempt to connect to the PHY using orion-mdio */
phydev = NULL;
for (i = 0; i < num; i++) {
int addr = (start + i) & 0x1f;
if (bus->phy_map[addr] == NULL)
mdiobus_scan(bus, addr);
snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
"orion-mdio-mii", addr);
if (phydev == NULL) {
phydev = bus->phy_map[addr];
if (phydev != NULL)
phydev = phy_connect(mp->dev, phy_id, mv643xx_eth_adjust_link,
PHY_INTERFACE_MODE_GMII);
if (!IS_ERR(phydev)) {
phy_addr_set(mp, addr);
break;
}
}
@ -2866,8 +2705,6 @@ static void phy_init(struct mv643xx_eth_private *mp, int speed, int duplex)
phy_reset(mp);
phy_attach(mp->dev, dev_name(&phy->dev), PHY_INTERFACE_MODE_GMII);
if (speed == 0) {
phy->autoneg = AUTONEG_ENABLE;
phy->speed = 0;

114
drivers/net/ethernet/marvell/mvmdio.c
View File

@ -24,10 +24,13 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/phy.h>
#include <linux/of_address.h>
#include <linux/of_mdio.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/of_mdio.h>
#include <linux/sched.h>
#include <linux/wait.h>
#define MVMDIO_SMI_DATA_SHIFT 0
#define MVMDIO_SMI_PHY_ADDR_SHIFT 16
@ -36,34 +39,59 @@
#define MVMDIO_SMI_WRITE_OPERATION 0
#define MVMDIO_SMI_READ_VALID BIT(27)
#define MVMDIO_SMI_BUSY BIT(28)
#define MVMDIO_ERR_INT_CAUSE 0x007C
#define MVMDIO_ERR_INT_SMI_DONE 0x00000010
#define MVMDIO_ERR_INT_MASK 0x0080
struct orion_mdio_dev {
struct mutex lock;
void __iomem *smireg;
void __iomem *regs;
/*
* If we have access to the error interrupt pin (which is
* somewhat misnamed as it not only reflects internal errors
* but also reflects SMI completion), use that to wait for
* SMI access completion instead of polling the SMI busy bit.
*/
int err_interrupt;
wait_queue_head_t smi_busy_wait;
};
static int orion_mdio_smi_is_done(struct orion_mdio_dev *dev)
{
return !(readl(dev->regs) & MVMDIO_SMI_BUSY);
}
/* Wait for the SMI unit to be ready for another operation
*/
static int orion_mdio_wait_ready(struct mii_bus *bus)
{
struct orion_mdio_dev *dev = bus->priv;
int count;
u32 val;
if (dev->err_interrupt <= 0) {
count = 0;
while (1) {
val = readl(dev->smireg);
if (!(val & MVMDIO_SMI_BUSY))
if (orion_mdio_smi_is_done(dev))
break;
if (count > 100) {
dev_err(bus->parent, "Timeout: SMI busy for too long\n");
dev_err(bus->parent,
"Timeout: SMI busy for too long\n");
return -ETIMEDOUT;
}
udelay(10);
count++;
}
} else {
if (!orion_mdio_smi_is_done(dev)) {
wait_event_timeout(dev->smi_busy_wait,
orion_mdio_smi_is_done(dev),
msecs_to_jiffies(100));
if (!orion_mdio_smi_is_done(dev))
return -ETIMEDOUT;
}
}
return 0;
}
@ -87,12 +115,12 @@ static int orion_mdio_read(struct mii_bus *bus, int mii_id,
writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
(regnum << MVMDIO_SMI_PHY_REG_SHIFT) |
MVMDIO_SMI_READ_OPERATION),
dev->smireg);
dev->regs);
/* Wait for the value to become available */
count = 0;
while (1) {
val = readl(dev->smireg);
val = readl(dev->regs);
if (val & MVMDIO_SMI_READ_VALID)
break;
@ -129,7 +157,7 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id,
(regnum << MVMDIO_SMI_PHY_REG_SHIFT) |
MVMDIO_SMI_WRITE_OPERATION |
(value << MVMDIO_SMI_DATA_SHIFT)),
dev->smireg);
dev->regs);
mutex_unlock(&dev->lock);
@ -141,13 +169,34 @@ static int orion_mdio_reset(struct mii_bus *bus)
return 0;
}
static irqreturn_t orion_mdio_err_irq(int irq, void *dev_id)
{
struct orion_mdio_dev *dev = dev_id;
if (readl(dev->regs + MVMDIO_ERR_INT_CAUSE) &
MVMDIO_ERR_INT_SMI_DONE) {
writel(~MVMDIO_ERR_INT_SMI_DONE,
dev->regs + MVMDIO_ERR_INT_CAUSE);
wake_up(&dev->smi_busy_wait);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
static int orion_mdio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct resource *r;
struct mii_bus *bus;
struct orion_mdio_dev *dev;
int i, ret;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r) {
dev_err(&pdev->dev, "No SMI register address given\n");
return -ENODEV;
}
bus = mdiobus_alloc_size(sizeof(struct orion_mdio_dev));
if (!bus) {
dev_err(&pdev->dev, "Cannot allocate MDIO bus\n");
@ -172,33 +221,54 @@ static int orion_mdio_probe(struct platform_device *pdev)
bus->irq[i] = PHY_POLL;
dev = bus->priv;
dev->smireg = of_iomap(pdev->dev.of_node, 0);
if (!dev->smireg) {
dev_err(&pdev->dev, "No SMI register address given in DT\n");
kfree(bus->irq);
mdiobus_free(bus);
return -ENODEV;
dev->regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
if (!dev->regs) {
dev_err(&pdev->dev, "Unable to remap SMI register\n");
ret = -ENODEV;
goto out_mdio;
}
init_waitqueue_head(&dev->smi_busy_wait);
dev->err_interrupt = platform_get_irq(pdev, 0);
if (dev->err_interrupt != -ENXIO) {
ret = devm_request_irq(&pdev->dev, dev->err_interrupt,
orion_mdio_err_irq,
IRQF_SHARED, pdev->name, dev);
if (ret)
goto out_mdio;
writel(MVMDIO_ERR_INT_SMI_DONE,
dev->regs + MVMDIO_ERR_INT_MASK);
}
mutex_init(&dev->lock);
ret = of_mdiobus_register(bus, np);
if (pdev->dev.of_node)
ret = of_mdiobus_register(bus, pdev->dev.of_node);
else
ret = mdiobus_register(bus);
if (ret < 0) {
dev_err(&pdev->dev, "Cannot register MDIO bus (%d)\n", ret);
iounmap(dev->smireg);
kfree(bus->irq);
mdiobus_free(bus);
return ret;
goto out_mdio;
}
platform_set_drvdata(pdev, bus);
return 0;
out_mdio:
kfree(bus->irq);
mdiobus_free(bus);
return ret;
}
static int orion_mdio_remove(struct platform_device *pdev)
{
struct mii_bus *bus = platform_get_drvdata(pdev);
struct orion_mdio_dev *dev = bus->priv;
writel(0, dev->regs + MVMDIO_ERR_INT_MASK);
mdiobus_unregister(bus);
kfree(bus->irq);
mdiobus_free(bus);

1
include/linux/mv643xx_eth.h
View File

@ -19,7 +19,6 @@
struct mv643xx_eth_shared_platform_data {
struct mbus_dram_target_info *dram;
struct platform_device *shared_smi;
/*
* Max packet size for Tx IP/Layer 4 checksum, when set to 0, default
* limit of 9KiB will be used.