[PATCH v2 2/3] davinci_emac: adjust to new phylib framework
Jan Luebbe
jlu at pengutronix.de
Fri Sep 28 11:00:49 EDT 2012
Also pass flags using platform_data and remove useless casts from void*.
Signed-off-by: Jan Luebbe <jlu at pengutronix.de>
---
drivers/net/Kconfig | 2 +-
drivers/net/davinci_emac.c | 81 ++++++++++++++++++++++++++------------------
include/net/davinci_emac.h | 13 +++++++
3 files changed, 62 insertions(+), 34 deletions(-)
create mode 100644 include/net/davinci_emac.h
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index b0da2c5..b3e5a83 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -48,7 +48,7 @@ config DRIVER_NET_SMC91111
config DRIVER_NET_DAVINCI_EMAC
bool "TI Davinci/OMAP EMAC ethernet driver"
depends on ARCH_DAVINCI || ARCH_OMAP3
- select MIIDEV
+ select PHYLIB
config DRIVER_NET_DM9K
bool "Davicom dm9k[E|A|B] ethernet driver"
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 7f39972..52786e0 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -43,18 +43,19 @@
#include <io.h>
#include <clock.h>
#include <net.h>
-#include <miidev.h>
#include <malloc.h>
#include <init.h>
#include <asm/mmu.h>
#include <asm/system.h>
+#include <linux/phy.h>
#include <mach/emac_defs.h>
+#include <net/davinci_emac.h>
#include "davinci_emac.h"
struct davinci_emac_priv {
struct device_d *dev;
struct eth_device edev;
- struct mii_device miidev;
+ struct mii_bus miibus;
/* EMAC Addresses */
void __iomem *adap_emac; /* = EMAC_BASE_ADDR */
@@ -72,8 +73,10 @@ struct davinci_emac_priv {
/* Receive packet buffers */
unsigned char *emac_rx_buffers; /* [EMAC_MAX_RX_BUFFERS * (EMAC_MAX_ETHERNET_PKT_SIZE + EMAC_PKT_ALIGN)] */
- /* PHY address for a discovered PHY (0xff - not found) */
- uint8_t active_phy_addr; /* = 0xff */
+ /* PHY-specific information */
+ phy_interface_t interface;
+ uint8_t phy_addr;
+ uint32_t phy_flags;
/* mac_addr[0] goes out on the wire first */
uint8_t mac_addr[6];
@@ -149,7 +152,6 @@ static int davinci_eth_phy_read(struct davinci_emac_priv *priv, uint8_t phy_addr
/* Write to a PHY register via MDIO inteface. Blocks until operation is complete. */
static int davinci_eth_phy_write(struct davinci_emac_priv *priv, uint8_t phy_addr, uint8_t reg_num, uint16_t data)
{
-
while (readl(priv->adap_mdio + EMAC_MDIO_USERACCESS0) & MDIO_USERACCESS0_GO);
dev_dbg(priv->dev, "emac_phy_write: addr=0x%02x reg=0x%02x data=0x%04x\n",
@@ -167,16 +169,16 @@ static int davinci_eth_phy_write(struct davinci_emac_priv *priv, uint8_t phy_add
return 1;
}
-static int davinci_miidev_read(struct mii_device *dev, int addr, int reg)
+static int davinci_miibus_read(struct mii_bus *bus, int addr, int reg)
{
- struct davinci_emac_priv *priv = (struct davinci_emac_priv *)dev->edev->priv;
+ struct davinci_emac_priv *priv = bus->priv;
uint16_t value = 0;
return davinci_eth_phy_read(priv, addr, reg, &value) ? value : -1;
}
-static int davinci_miidev_write(struct mii_device *dev, int addr, int reg, int value)
+static int davinci_miibus_write(struct mii_bus *bus, int addr, int reg, u16 value)
{
- struct davinci_emac_priv *priv = (struct davinci_emac_priv *)dev->edev->priv;
+ struct davinci_emac_priv *priv = (struct davinci_emac_priv *)bus->priv;
return davinci_eth_phy_write(priv, addr, reg, value) ? 0 : -1;
}
@@ -191,7 +193,7 @@ static int davinci_emac_get_ethaddr(struct eth_device *edev, unsigned char *adr)
*/
static int davinci_emac_set_ethaddr(struct eth_device *edev, unsigned char *addr)
{
- struct davinci_emac_priv *priv = (struct davinci_emac_priv *)edev->priv;
+ struct davinci_emac_priv *priv = edev->priv;
int i;
for (i = 0; i < sizeof(priv->mac_addr); i++)
@@ -207,7 +209,7 @@ static int davinci_emac_init(struct eth_device *edev)
static int davinci_emac_open(struct eth_device *edev)
{
- struct davinci_emac_priv *priv = (struct davinci_emac_priv *)edev->priv;
+ struct davinci_emac_priv *priv = edev->priv;
uint32_t clkdiv, cnt;
void __iomem *rx_desc;
unsigned long mac_hi, mac_lo;
@@ -318,16 +320,11 @@ static int davinci_emac_open(struct eth_device *edev)
/* Start receive process */
writel(BD_TO_HW(priv->emac_rx_desc), priv->adap_emac + EMAC_RX0HDP);
- ret = miidev_wait_aneg(&priv->miidev);
+ ret = phy_device_connect(edev, &priv->miibus, priv->phy_addr, NULL,
+ priv->phy_flags, priv->interface);
if (ret)
return ret;
- ret = miidev_get_status(&priv->miidev);
- if (ret < 0)
- return ret;
-
- miidev_print_status(&priv->miidev);
-
dev_dbg(priv->dev, "- emac_open\n");
return 0;
@@ -378,7 +375,7 @@ static void davinci_eth_ch_teardown(struct davinci_emac_priv *priv, int ch)
static void davinci_emac_halt(struct eth_device *edev)
{
- struct davinci_emac_priv *priv = (struct davinci_emac_priv *)edev->priv;
+ struct davinci_emac_priv *priv = edev->priv;
dev_dbg(priv->dev, "+ emac_halt\n");
@@ -408,7 +405,7 @@ static void davinci_emac_halt(struct eth_device *edev)
*/
static int davinci_emac_send(struct eth_device *edev, void *packet, int length)
{
- struct davinci_emac_priv *priv = (struct davinci_emac_priv *)edev->priv;
+ struct davinci_emac_priv *priv = edev->priv;
uint64_t start;
int ret_status;
@@ -455,7 +452,7 @@ static int davinci_emac_send(struct eth_device *edev, void *packet, int length)
*/
static int davinci_emac_recv(struct eth_device *edev)
{
- struct davinci_emac_priv *priv = (struct davinci_emac_priv *)edev->priv;
+ struct davinci_emac_priv *priv = edev->priv;
void __iomem *rx_curr_desc, *curr_desc, *tail_desc;
unsigned char *pkt;
int status, len, ret = -1;
@@ -531,11 +528,19 @@ out:
static int davinci_emac_probe(struct device_d *dev)
{
+ struct davinci_emac_platform_data *pdata;
struct davinci_emac_priv *priv;
uint64_t start;
+ uint32_t phy_mask;
dev_dbg(dev, "+ emac_probe\n");
+ if (!dev->platform_data) {
+ dev_err(dev, "no platform_data\n");
+ return -ENODEV;
+ }
+ pdata = dev->platform_data;
+
priv = xzalloc(sizeof(*priv));
dev->priv = priv;
@@ -556,9 +561,6 @@ static int davinci_emac_probe(struct device_d *dev)
/* Receive packet buffers */
priv->emac_rx_buffers = xmemalign(4096, EMAC_MAX_RX_BUFFERS * (EMAC_MAX_ETHERNET_PKT_SIZE + EMAC_PKT_ALIGN));
- /* PHY address for a discovered PHY (0xff - not found) */
- priv->active_phy_addr = 0xff;
-
priv->edev.priv = priv;
priv->edev.init = davinci_emac_init;
priv->edev.open = davinci_emac_open;
@@ -573,22 +575,35 @@ static int davinci_emac_probe(struct device_d *dev)
start = get_time_ns();
while (1) {
- if (readl(priv->adap_mdio + EMAC_MDIO_ALIVE))
+ phy_mask = readl(priv->adap_mdio + EMAC_MDIO_ALIVE);
+ if (phy_mask) {
+ dev_info(dev, "detected phy mask 0x%x\n", phy_mask);
+ phy_mask = ~phy_mask;
break;
+ }
if (is_timeout(start, 256 * MSECOND)) {
- dev_err(dev, "No ETH PHY detected!\n");
+ dev_err(dev, "no live phy, scanning all\n");
+ phy_mask = 0;
break;
}
}
- priv->miidev.read = davinci_miidev_read;
- priv->miidev.write = davinci_miidev_write;
- priv->miidev.address = 0x01;
- priv->miidev.flags = MIIDEV_FORCE_LINK;
- priv->miidev.edev = &priv->edev;
- priv->miidev.parent = dev;
+ if (pdata->flags & DAVINCI_EMAC_RMII)
+ priv->interface = PHY_INTERFACE_MODE_RMII;
+ else
+ priv->interface = PHY_INTERFACE_MODE_MII;
+
+ priv->phy_addr = pdata->phy_addr;
+ priv->phy_flags = pdata->flags & DAVINCI_EMAC_FORCE_LINK ?
+ PHYLIB_FORCE_LINK : 0;
+
+ priv->miibus.read = davinci_miibus_read;
+ priv->miibus.write = davinci_miibus_write;
+ priv->miibus.priv = priv;
+ priv->miibus.parent = dev;
+ priv->miibus.phy_mask = phy_mask;
- mii_register(&priv->miidev);
+ mdiobus_register(&priv->miibus);
eth_register(&priv->edev);
diff --git a/include/net/davinci_emac.h b/include/net/davinci_emac.h
new file mode 100644
index 0000000..c962dc9
--- /dev/null
+++ b/include/net/davinci_emac.h
@@ -0,0 +1,13 @@
+#ifndef __NET_DAVINCI_EMAC_H__
+#define __NET_DAVINCI_EMAC_H__
+
+#define DAVINCI_EMAC_MII (0 << 0)
+#define DAVINCI_EMAC_RMII (1 << 0)
+#define DAVINCI_EMAC_FORCE_LINK (1 << 1)
+
+struct davinci_emac_platform_data {
+ unsigned int flags;
+ int phy_addr;
+};
+
+#endif /* __NET_DAVINCI_EMAC_H__ */
--
1.7.10.4
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