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Date: Thu, 26 Apr 2012 12:30:42 +0200
From: Nicolas Ferre <nicolas.ferre@...el.com>
To: <netdev@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
<davem@...emloft.net>
CC: <linux-kernel@...r.kernel.org>, <avictor.za@...il.com>,
<plagnioj@...osoft.com>, Nicolas Ferre <nicolas.ferre@...el.com>
Subject: [PATCH 1/2] AT91: Remove fixed mapping for AT91RM9200 ethernet
From: Andrew Victor <avictor.za@...il.com>
The AT91RM9200 Ethernet controller still has a fixed IO mapping.
So:
* Remove the fixed IO mapping and AT91_VA_BASE_EMAC definition.
* Pass the physical base-address via platform-resources to the driver.
* Convert at91_ether.c driver to perform an ioremap().
* Ethernet PHY detection needs to be performed during the driver
initialization process, it can no longer be done first.
Signed-off-by: Andrew Victor <linux@...im.org.za>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
---
arch/arm/mach-at91/at91rm9200.c | 10 -
arch/arm/mach-at91/at91rm9200_devices.c | 4 +-
arch/arm/mach-at91/include/mach/hardware.h | 1 -
drivers/net/ethernet/cadence/at91_ether.c | 527 +++++++++++++++-------------
drivers/net/ethernet/cadence/at91_ether.h | 1 +
5 files changed, 287 insertions(+), 256 deletions(-)
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 364c193..8910679 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -26,15 +26,6 @@
#include "clock.h"
#include "sam9_smc.h"
-static struct map_desc at91rm9200_io_desc[] __initdata = {
- {
- .virtual = AT91_VA_BASE_EMAC,
- .pfn = __phys_to_pfn(AT91RM9200_BASE_EMAC),
- .length = SZ_16K,
- .type = MT_DEVICE,
- },
-};
-
/* --------------------------------------------------------------------
* Clocks
* -------------------------------------------------------------------- */
@@ -315,7 +306,6 @@ static void __init at91rm9200_map_io(void)
{
/* Map peripherals */
at91_init_sram(0, AT91RM9200_SRAM_BASE, AT91RM9200_SRAM_SIZE);
- iotable_init(at91rm9200_io_desc, ARRAY_SIZE(at91rm9200_io_desc));
}
static void __init at91rm9200_ioremap_registers(void)
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index 05774e5..60c4728 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -140,8 +140,8 @@ static struct macb_platform_data eth_data;
static struct resource eth_resources[] = {
[0] = {
- .start = AT91_VA_BASE_EMAC,
- .end = AT91_VA_BASE_EMAC + SZ_16K - 1,
+ .start = AT91RM9200_BASE_EMAC,
+ .end = AT91RM9200_BASE_EMAC + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h
index e9e29a6..01db372 100644
--- a/arch/arm/mach-at91/include/mach/hardware.h
+++ b/arch/arm/mach-at91/include/mach/hardware.h
@@ -94,7 +94,6 @@
* Virtual to Physical Address mapping for IO devices.
*/
#define AT91_VA_BASE_SYS AT91_IO_P2V(AT91_BASE_SYS)
-#define AT91_VA_BASE_EMAC AT91_IO_P2V(AT91RM9200_BASE_EMAC)
/* Internal SRAM is mapped below the IO devices */
#define AT91_SRAM_MAX SZ_1M
diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
index 9061170..62761e1 100644
--- a/drivers/net/ethernet/cadence/at91_ether.c
+++ b/drivers/net/ethernet/cadence/at91_ether.c
@@ -30,6 +30,7 @@
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/gfp.h>
+#include <linux/phy.h>
#include <asm/io.h>
#include <asm/uaccess.h>
@@ -51,21 +52,17 @@
/*
* Read from a EMAC register.
*/
-static inline unsigned long at91_emac_read(unsigned int reg)
+static inline unsigned long at91_emac_read(struct at91_private *lp, unsigned int reg)
{
- void __iomem *emac_base = (void __iomem *)AT91_VA_BASE_EMAC;
-
- return __raw_readl(emac_base + reg);
+ return __raw_readl(lp->emac_base + reg);
}
/*
* Write to a EMAC register.
*/
-static inline void at91_emac_write(unsigned int reg, unsigned long value)
+static inline void at91_emac_write(struct at91_private *lp, unsigned int reg, unsigned long value)
{
- void __iomem *emac_base = (void __iomem *)AT91_VA_BASE_EMAC;
-
- __raw_writel(value, emac_base + reg);
+ __raw_writel(value, lp->emac_base + reg);
}
/* ........................... PHY INTERFACE ........................... */
@@ -75,32 +72,33 @@ static inline void at91_emac_write(unsigned int reg, unsigned long value)
* When not called from an interrupt-handler, access to the PHY must be
* protected by a spinlock.
*/
-static void enable_mdi(void)
+static void enable_mdi(struct at91_private *lp)
{
unsigned long ctl;
- ctl = at91_emac_read(AT91_EMAC_CTL);
- at91_emac_write(AT91_EMAC_CTL, ctl | AT91_EMAC_MPE); /* enable management port */
+ ctl = at91_emac_read(lp, AT91_EMAC_CTL);
+ at91_emac_write(lp, AT91_EMAC_CTL, ctl | AT91_EMAC_MPE); /* enable management port */
}
/*
* Disable the MDIO bit in the MAC control register
*/
-static void disable_mdi(void)
+static void disable_mdi(struct at91_private *lp)
{
unsigned long ctl;
- ctl = at91_emac_read(AT91_EMAC_CTL);
- at91_emac_write(AT91_EMAC_CTL, ctl & ~AT91_EMAC_MPE); /* disable management port */
+ ctl = at91_emac_read(lp, AT91_EMAC_CTL);
+ at91_emac_write(lp, AT91_EMAC_CTL, ctl & ~AT91_EMAC_MPE); /* disable management port */
}
/*
* Wait until the PHY operation is complete.
*/
-static inline void at91_phy_wait(void) {
+static inline void at91_phy_wait(struct at91_private *lp)
+{
unsigned long timeout = jiffies + 2;
- while (!(at91_emac_read(AT91_EMAC_SR) & AT91_EMAC_SR_IDLE)) {
+ while (!(at91_emac_read(lp, AT91_EMAC_SR) & AT91_EMAC_SR_IDLE)) {
if (time_after(jiffies, timeout)) {
printk("at91_ether: MIO timeout\n");
break;
@@ -113,28 +111,28 @@ static inline void at91_phy_wait(void) {
* Write value to the a PHY register
* Note: MDI interface is assumed to already have been enabled.
*/
-static void write_phy(unsigned char phy_addr, unsigned char address, unsigned int value)
+static void write_phy(struct at91_private *lp, unsigned char phy_addr, unsigned char address, unsigned int value)
{
- at91_emac_write(AT91_EMAC_MAN, AT91_EMAC_MAN_802_3 | AT91_EMAC_RW_W
+ at91_emac_write(lp, AT91_EMAC_MAN, AT91_EMAC_MAN_802_3 | AT91_EMAC_RW_W
| ((phy_addr & 0x1f) << 23) | (address << 18) | (value & AT91_EMAC_DATA));
/* Wait until IDLE bit in Network Status register is cleared */
- at91_phy_wait();
+ at91_phy_wait(lp);
}
/*
* Read value stored in a PHY register.
* Note: MDI interface is assumed to already have been enabled.
*/
-static void read_phy(unsigned char phy_addr, unsigned char address, unsigned int *value)
+static void read_phy(struct at91_private *lp, unsigned char phy_addr, unsigned char address, unsigned int *value)
{
- at91_emac_write(AT91_EMAC_MAN, AT91_EMAC_MAN_802_3 | AT91_EMAC_RW_R
+ at91_emac_write(lp, AT91_EMAC_MAN, AT91_EMAC_MAN_802_3 | AT91_EMAC_RW_R
| ((phy_addr & 0x1f) << 23) | (address << 18));
/* Wait until IDLE bit in Network Status register is cleared */
- at91_phy_wait();
+ at91_phy_wait(lp);
- *value = at91_emac_read(AT91_EMAC_MAN) & AT91_EMAC_DATA;
+ *value = at91_emac_read(lp, AT91_EMAC_MAN) & AT91_EMAC_DATA;
}
/* ........................... PHY MANAGEMENT .......................... */
@@ -158,13 +156,13 @@ static void update_linkspeed(struct net_device *dev, int silent)
}
/* Link up, or auto-negotiation still in progress */
- read_phy(lp->phy_address, MII_BMSR, &bmsr);
- read_phy(lp->phy_address, MII_BMCR, &bmcr);
+ read_phy(lp, lp->phy_address, MII_BMSR, &bmsr);
+ read_phy(lp, lp->phy_address, MII_BMCR, &bmcr);
if (bmcr & BMCR_ANENABLE) { /* AutoNegotiation is enabled */
if (!(bmsr & BMSR_ANEGCOMPLETE))
return; /* Do nothing - another interrupt generated when negotiation complete */
- read_phy(lp->phy_address, MII_LPA, &lpa);
+ read_phy(lp, lp->phy_address, MII_LPA, &lpa);
if ((lpa & LPA_100FULL) || (lpa & LPA_100HALF)) speed = SPEED_100;
else speed = SPEED_10;
if ((lpa & LPA_100FULL) || (lpa & LPA_10FULL)) duplex = DUPLEX_FULL;
@@ -175,7 +173,7 @@ static void update_linkspeed(struct net_device *dev, int silent)
}
/* Update the MAC */
- mac_cfg = at91_emac_read(AT91_EMAC_CFG) & ~(AT91_EMAC_SPD | AT91_EMAC_FD);
+ mac_cfg = at91_emac_read(lp, AT91_EMAC_CFG) & ~(AT91_EMAC_SPD | AT91_EMAC_FD);
if (speed == SPEED_100) {
if (duplex == DUPLEX_FULL) /* 100 Full Duplex */
mac_cfg |= AT91_EMAC_SPD | AT91_EMAC_FD;
@@ -186,7 +184,7 @@ static void update_linkspeed(struct net_device *dev, int silent)
mac_cfg |= AT91_EMAC_FD;
else {} /* 10 Half Duplex */
}
- at91_emac_write(AT91_EMAC_CFG, mac_cfg);
+ at91_emac_write(lp, AT91_EMAC_CFG, mac_cfg);
if (!silent)
printk(KERN_INFO "%s: Link now %i-%s\n", dev->name, speed, (duplex == DUPLEX_FULL) ? "FullDuplex" : "HalfDuplex");
@@ -207,34 +205,34 @@ static irqreturn_t at91ether_phy_interrupt(int irq, void *dev_id)
* level-triggering. We therefore have to check if the PHY actually has
* an IRQ pending.
*/
- enable_mdi();
+ enable_mdi(lp);
if ((lp->phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID)) {
- read_phy(lp->phy_address, MII_DSINTR_REG, &phy); /* ack interrupt in Davicom PHY */
+ read_phy(lp, lp->phy_address, MII_DSINTR_REG, &phy); /* ack interrupt in Davicom PHY */
if (!(phy & (1 << 0)))
goto done;
}
else if (lp->phy_type == MII_LXT971A_ID) {
- read_phy(lp->phy_address, MII_ISINTS_REG, &phy); /* ack interrupt in Intel PHY */
+ read_phy(lp, lp->phy_address, MII_ISINTS_REG, &phy); /* ack interrupt in Intel PHY */
if (!(phy & (1 << 2)))
goto done;
}
else if (lp->phy_type == MII_BCM5221_ID) {
- read_phy(lp->phy_address, MII_BCMINTR_REG, &phy); /* ack interrupt in Broadcom PHY */
+ read_phy(lp, lp->phy_address, MII_BCMINTR_REG, &phy); /* ack interrupt in Broadcom PHY */
if (!(phy & (1 << 0)))
goto done;
}
else if (lp->phy_type == MII_KS8721_ID) {
- read_phy(lp->phy_address, MII_TPISTATUS, &phy); /* ack interrupt in Micrel PHY */
+ read_phy(lp, lp->phy_address, MII_TPISTATUS, &phy); /* ack interrupt in Micrel PHY */
if (!(phy & ((1 << 2) | 1)))
goto done;
}
- else if (lp->phy_type == MII_T78Q21x3_ID) { /* ack interrupt in Teridian PHY */
- read_phy(lp->phy_address, MII_T78Q21INT_REG, &phy);
+ else if (lp->phy_type == MII_T78Q21x3_ID) { /* ack interrupt in Teridian PHY */
+ read_phy(lp, lp->phy_address, MII_T78Q21INT_REG, &phy);
if (!(phy & ((1 << 2) | 1)))
goto done;
}
else if (lp->phy_type == MII_DP83848_ID) {
- read_phy(lp->phy_address, MII_DPPHYSTS_REG, &phy); /* ack interrupt in DP83848 PHY */
+ read_phy(lp, lp->phy_address, MII_DPPHYSTS_REG, &phy); /* ack interrupt in DP83848 PHY */
if (!(phy & (1 << 7)))
goto done;
}
@@ -242,7 +240,7 @@ static irqreturn_t at91ether_phy_interrupt(int irq, void *dev_id)
update_linkspeed(dev, 0);
done:
- disable_mdi();
+ disable_mdi(lp);
return IRQ_HANDLED;
}
@@ -273,41 +271,41 @@ static void enable_phyirq(struct net_device *dev)
}
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
if ((lp->phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID)) { /* for Davicom PHY */
- read_phy(lp->phy_address, MII_DSINTR_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_DSINTR_REG, &dsintr);
dsintr = dsintr & ~0xf00; /* clear bits 8..11 */
- write_phy(lp->phy_address, MII_DSINTR_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_DSINTR_REG, dsintr);
}
else if (lp->phy_type == MII_LXT971A_ID) { /* for Intel PHY */
- read_phy(lp->phy_address, MII_ISINTE_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_ISINTE_REG, &dsintr);
dsintr = dsintr | 0xf2; /* set bits 1, 4..7 */
- write_phy(lp->phy_address, MII_ISINTE_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_ISINTE_REG, dsintr);
}
else if (lp->phy_type == MII_BCM5221_ID) { /* for Broadcom PHY */
dsintr = (1 << 15) | ( 1 << 14);
- write_phy(lp->phy_address, MII_BCMINTR_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_BCMINTR_REG, dsintr);
}
else if (lp->phy_type == MII_KS8721_ID) { /* for Micrel PHY */
dsintr = (1 << 10) | ( 1 << 8);
- write_phy(lp->phy_address, MII_TPISTATUS, dsintr);
+ write_phy(lp, lp->phy_address, MII_TPISTATUS, dsintr);
}
else if (lp->phy_type == MII_T78Q21x3_ID) { /* for Teridian PHY */
- read_phy(lp->phy_address, MII_T78Q21INT_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_T78Q21INT_REG, &dsintr);
dsintr = dsintr | 0x500; /* set bits 8, 10 */
- write_phy(lp->phy_address, MII_T78Q21INT_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_T78Q21INT_REG, dsintr);
}
else if (lp->phy_type == MII_DP83848_ID) { /* National Semiconductor DP83848 PHY */
- read_phy(lp->phy_address, MII_DPMISR_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_DPMISR_REG, &dsintr);
dsintr = dsintr | 0x3c; /* set bits 2..5 */
- write_phy(lp->phy_address, MII_DPMISR_REG, dsintr);
- read_phy(lp->phy_address, MII_DPMICR_REG, &dsintr);
+ write_phy(lp, lp->phy_address, MII_DPMISR_REG, dsintr);
+ read_phy(lp, lp->phy_address, MII_DPMICR_REG, &dsintr);
dsintr = dsintr | 0x3; /* set bits 0,1 */
- write_phy(lp->phy_address, MII_DPMICR_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_DPMICR_REG, dsintr);
}
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
}
@@ -326,43 +324,43 @@ static void disable_phyirq(struct net_device *dev)
}
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
if ((lp->phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID)) { /* for Davicom PHY */
- read_phy(lp->phy_address, MII_DSINTR_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_DSINTR_REG, &dsintr);
dsintr = dsintr | 0xf00; /* set bits 8..11 */
- write_phy(lp->phy_address, MII_DSINTR_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_DSINTR_REG, dsintr);
}
else if (lp->phy_type == MII_LXT971A_ID) { /* for Intel PHY */
- read_phy(lp->phy_address, MII_ISINTE_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_ISINTE_REG, &dsintr);
dsintr = dsintr & ~0xf2; /* clear bits 1, 4..7 */
- write_phy(lp->phy_address, MII_ISINTE_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_ISINTE_REG, dsintr);
}
else if (lp->phy_type == MII_BCM5221_ID) { /* for Broadcom PHY */
- read_phy(lp->phy_address, MII_BCMINTR_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_BCMINTR_REG, &dsintr);
dsintr = ~(1 << 14);
- write_phy(lp->phy_address, MII_BCMINTR_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_BCMINTR_REG, dsintr);
}
else if (lp->phy_type == MII_KS8721_ID) { /* for Micrel PHY */
- read_phy(lp->phy_address, MII_TPISTATUS, &dsintr);
+ read_phy(lp, lp->phy_address, MII_TPISTATUS, &dsintr);
dsintr = ~((1 << 10) | (1 << 8));
- write_phy(lp->phy_address, MII_TPISTATUS, dsintr);
+ write_phy(lp, lp->phy_address, MII_TPISTATUS, dsintr);
}
else if (lp->phy_type == MII_T78Q21x3_ID) { /* for Teridian PHY */
- read_phy(lp->phy_address, MII_T78Q21INT_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_T78Q21INT_REG, &dsintr);
dsintr = dsintr & ~0x500; /* clear bits 8, 10 */
- write_phy(lp->phy_address, MII_T78Q21INT_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_T78Q21INT_REG, dsintr);
}
else if (lp->phy_type == MII_DP83848_ID) { /* National Semiconductor DP83848 PHY */
- read_phy(lp->phy_address, MII_DPMICR_REG, &dsintr);
+ read_phy(lp, lp->phy_address, MII_DPMICR_REG, &dsintr);
dsintr = dsintr & ~0x3; /* clear bits 0, 1 */
- write_phy(lp->phy_address, MII_DPMICR_REG, dsintr);
- read_phy(lp->phy_address, MII_DPMISR_REG, &dsintr);
+ write_phy(lp, lp->phy_address, MII_DPMICR_REG, dsintr);
+ read_phy(lp, lp->phy_address, MII_DPMISR_REG, &dsintr);
dsintr = dsintr & ~0x3c; /* clear bits 2..5 */
- write_phy(lp->phy_address, MII_DPMISR_REG, dsintr);
+ write_phy(lp, lp->phy_address, MII_DPMISR_REG, dsintr);
}
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
irq_number = lp->board_data.phy_irq_pin;
@@ -379,17 +377,17 @@ static void reset_phy(struct net_device *dev)
unsigned int bmcr;
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
/* Perform PHY reset */
- write_phy(lp->phy_address, MII_BMCR, BMCR_RESET);
+ write_phy(lp, lp->phy_address, MII_BMCR, BMCR_RESET);
/* Wait until PHY reset is complete */
do {
- read_phy(lp->phy_address, MII_BMCR, &bmcr);
+ read_phy(lp, lp->phy_address, MII_BMCR, &bmcr);
} while (!(bmcr & BMCR_RESET));
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
}
#endif
@@ -399,13 +397,37 @@ static void at91ether_check_link(unsigned long dev_id)
struct net_device *dev = (struct net_device *) dev_id;
struct at91_private *lp = netdev_priv(dev);
- enable_mdi();
+ enable_mdi(lp);
update_linkspeed(dev, 1);
- disable_mdi();
+ disable_mdi(lp);
mod_timer(&lp->check_timer, jiffies + LINK_POLL_INTERVAL);
}
+/*
+ * Perform any PHY-specific initialization.
+ */
+static void __init initialize_phy(struct at91_private *lp)
+{
+ unsigned int val;
+
+ spin_lock_irq(&lp->lock);
+ enable_mdi(lp);
+
+ if ((lp->phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID)) {
+ read_phy(lp, lp->phy_address, MII_DSCR_REG, &val);
+ if ((val & (1 << 10)) == 0) /* DSCR bit 10 is 0 -- fiber mode */
+ lp->phy_media = PORT_FIBRE;
+ } else if (machine_is_csb337()) {
+ /* mix link activity status into LED2 link state */
+ write_phy(lp, lp->phy_address, MII_LEDCTRL_REG, 0x0d22);
+ } else if (machine_is_ecbat91())
+ write_phy(lp, lp->phy_address, MII_LEDCTRL_REG, 0x156A);
+
+ disable_mdi(lp);
+ spin_unlock_irq(&lp->lock);
+}
+
/* ......................... ADDRESS MANAGEMENT ........................ */
/*
@@ -454,17 +476,19 @@ static short __init unpack_mac_address(struct net_device *dev, unsigned int hi,
*/
static void __init get_mac_address(struct net_device *dev)
{
+ struct at91_private *lp = netdev_priv(dev);
+
/* Check Specific-Address 1 */
- if (unpack_mac_address(dev, at91_emac_read(AT91_EMAC_SA1H), at91_emac_read(AT91_EMAC_SA1L)))
+ if (unpack_mac_address(dev, at91_emac_read(lp, AT91_EMAC_SA1H), at91_emac_read(lp, AT91_EMAC_SA1L)))
return;
/* Check Specific-Address 2 */
- if (unpack_mac_address(dev, at91_emac_read(AT91_EMAC_SA2H), at91_emac_read(AT91_EMAC_SA2L)))
+ if (unpack_mac_address(dev, at91_emac_read(lp, AT91_EMAC_SA2H), at91_emac_read(lp, AT91_EMAC_SA2L)))
return;
/* Check Specific-Address 3 */
- if (unpack_mac_address(dev, at91_emac_read(AT91_EMAC_SA3H), at91_emac_read(AT91_EMAC_SA3L)))
+ if (unpack_mac_address(dev, at91_emac_read(lp, AT91_EMAC_SA3H), at91_emac_read(lp, AT91_EMAC_SA3L)))
return;
/* Check Specific-Address 4 */
- if (unpack_mac_address(dev, at91_emac_read(AT91_EMAC_SA4H), at91_emac_read(AT91_EMAC_SA4L)))
+ if (unpack_mac_address(dev, at91_emac_read(lp, AT91_EMAC_SA4H), at91_emac_read(lp, AT91_EMAC_SA4L)))
return;
printk(KERN_ERR "at91_ether: Your bootloader did not configure a MAC address.\n");
@@ -475,11 +499,13 @@ static void __init get_mac_address(struct net_device *dev)
*/
static void update_mac_address(struct net_device *dev)
{
- at91_emac_write(AT91_EMAC_SA1L, (dev->dev_addr[3] << 24) | (dev->dev_addr[2] << 16) | (dev->dev_addr[1] << 8) | (dev->dev_addr[0]));
- at91_emac_write(AT91_EMAC_SA1H, (dev->dev_addr[5] << 8) | (dev->dev_addr[4]));
+ struct at91_private *lp = netdev_priv(dev);
- at91_emac_write(AT91_EMAC_SA2L, 0);
- at91_emac_write(AT91_EMAC_SA2H, 0);
+ at91_emac_write(lp, AT91_EMAC_SA1L, (dev->dev_addr[3] << 24) | (dev->dev_addr[2] << 16) | (dev->dev_addr[1] << 8) | (dev->dev_addr[0]));
+ at91_emac_write(lp, AT91_EMAC_SA1H, (dev->dev_addr[5] << 8) | (dev->dev_addr[4]));
+
+ at91_emac_write(lp, AT91_EMAC_SA2L, 0);
+ at91_emac_write(lp, AT91_EMAC_SA2H, 0);
}
/*
@@ -559,6 +585,7 @@ static int hash_get_index(__u8 *addr)
*/
static void at91ether_sethashtable(struct net_device *dev)
{
+ struct at91_private *lp = netdev_priv(dev);
struct netdev_hw_addr *ha;
unsigned long mc_filter[2];
unsigned int bitnr;
@@ -570,8 +597,8 @@ static void at91ether_sethashtable(struct net_device *dev)
mc_filter[bitnr >> 5] |= 1 << (bitnr & 31);
}
- at91_emac_write(AT91_EMAC_HSL, mc_filter[0]);
- at91_emac_write(AT91_EMAC_HSH, mc_filter[1]);
+ at91_emac_write(lp, AT91_EMAC_HSL, mc_filter[0]);
+ at91_emac_write(lp, AT91_EMAC_HSH, mc_filter[1]);
}
/*
@@ -579,9 +606,10 @@ static void at91ether_sethashtable(struct net_device *dev)
*/
static void at91ether_set_multicast_list(struct net_device *dev)
{
+ struct at91_private *lp = netdev_priv(dev);
unsigned long cfg;
- cfg = at91_emac_read(AT91_EMAC_CFG);
+ cfg = at91_emac_read(lp, AT91_EMAC_CFG);
if (dev->flags & IFF_PROMISC) /* Enable promiscuous mode */
cfg |= AT91_EMAC_CAF;
@@ -589,34 +617,37 @@ static void at91ether_set_multicast_list(struct net_device *dev)
cfg &= ~AT91_EMAC_CAF;
if (dev->flags & IFF_ALLMULTI) { /* Enable all multicast mode */
- at91_emac_write(AT91_EMAC_HSH, -1);
- at91_emac_write(AT91_EMAC_HSL, -1);
+ at91_emac_write(lp, AT91_EMAC_HSH, -1);
+ at91_emac_write(lp, AT91_EMAC_HSL, -1);
cfg |= AT91_EMAC_MTI;
} else if (!netdev_mc_empty(dev)) { /* Enable specific multicasts */
at91ether_sethashtable(dev);
cfg |= AT91_EMAC_MTI;
} else if (dev->flags & (~IFF_ALLMULTI)) { /* Disable all multicast mode */
- at91_emac_write(AT91_EMAC_HSH, 0);
- at91_emac_write(AT91_EMAC_HSL, 0);
+ at91_emac_write(lp, AT91_EMAC_HSH, 0);
+ at91_emac_write(lp, AT91_EMAC_HSL, 0);
cfg &= ~AT91_EMAC_MTI;
}
- at91_emac_write(AT91_EMAC_CFG, cfg);
+ at91_emac_write(lp, AT91_EMAC_CFG, cfg);
}
/* ......................... ETHTOOL SUPPORT ........................... */
static int mdio_read(struct net_device *dev, int phy_id, int location)
{
+ struct at91_private *lp = netdev_priv(dev);
unsigned int value;
- read_phy(phy_id, location, &value);
+ read_phy(lp, phy_id, location, &value);
return value;
}
static void mdio_write(struct net_device *dev, int phy_id, int location, int value)
{
- write_phy(phy_id, location, value);
+ struct at91_private *lp = netdev_priv(dev);
+
+ write_phy(lp, phy_id, location, value);
}
static int at91ether_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
@@ -625,11 +656,11 @@ static int at91ether_get_settings(struct net_device *dev, struct ethtool_cmd *cm
int ret;
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
ret = mii_ethtool_gset(&lp->mii, cmd);
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
if (lp->phy_media == PORT_FIBRE) { /* override media type since mii.c doesn't know */
@@ -646,11 +677,11 @@ static int at91ether_set_settings(struct net_device *dev, struct ethtool_cmd *cm
int ret;
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
ret = mii_ethtool_sset(&lp->mii, cmd);
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
return ret;
@@ -662,11 +693,11 @@ static int at91ether_nwayreset(struct net_device *dev)
int ret;
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
ret = mii_nway_restart(&lp->mii);
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
return ret;
@@ -696,9 +727,9 @@ static int at91ether_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
return -EINVAL;
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
res = generic_mii_ioctl(&lp->mii, if_mii(rq), cmd, NULL);
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
return res;
@@ -731,11 +762,11 @@ static void at91ether_start(struct net_device *dev)
lp->rxBuffIndex = 0;
/* Program address of descriptor list in Rx Buffer Queue register */
- at91_emac_write(AT91_EMAC_RBQP, (unsigned long) dlist_phys);
+ at91_emac_write(lp, AT91_EMAC_RBQP, (unsigned long) dlist_phys);
/* Enable Receive and Transmit */
- ctl = at91_emac_read(AT91_EMAC_CTL);
- at91_emac_write(AT91_EMAC_CTL, ctl | AT91_EMAC_RE | AT91_EMAC_TE);
+ ctl = at91_emac_read(lp, AT91_EMAC_CTL);
+ at91_emac_write(lp, AT91_EMAC_CTL, ctl | AT91_EMAC_RE | AT91_EMAC_TE);
}
/*
@@ -752,8 +783,8 @@ static int at91ether_open(struct net_device *dev)
clk_enable(lp->ether_clk); /* Re-enable Peripheral clock */
/* Clear internal statistics */
- ctl = at91_emac_read(AT91_EMAC_CTL);
- at91_emac_write(AT91_EMAC_CTL, ctl | AT91_EMAC_CSR);
+ ctl = at91_emac_read(lp, AT91_EMAC_CTL);
+ at91_emac_write(lp, AT91_EMAC_CTL, ctl | AT91_EMAC_CSR);
/* Update the MAC address (incase user has changed it) */
update_mac_address(dev);
@@ -762,15 +793,15 @@ static int at91ether_open(struct net_device *dev)
enable_phyirq(dev);
/* Enable MAC interrupts */
- at91_emac_write(AT91_EMAC_IER, AT91_EMAC_RCOM | AT91_EMAC_RBNA
+ at91_emac_write(lp, AT91_EMAC_IER, AT91_EMAC_RCOM | AT91_EMAC_RBNA
| AT91_EMAC_TUND | AT91_EMAC_RTRY | AT91_EMAC_TCOM
| AT91_EMAC_ROVR | AT91_EMAC_ABT);
/* Determine current link speed */
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
update_linkspeed(dev, 0);
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
at91ether_start(dev);
@@ -787,14 +818,14 @@ static int at91ether_close(struct net_device *dev)
unsigned long ctl;
/* Disable Receiver and Transmitter */
- ctl = at91_emac_read(AT91_EMAC_CTL);
- at91_emac_write(AT91_EMAC_CTL, ctl & ~(AT91_EMAC_TE | AT91_EMAC_RE));
+ ctl = at91_emac_read(lp, AT91_EMAC_CTL);
+ at91_emac_write(lp, AT91_EMAC_CTL, ctl & ~(AT91_EMAC_TE | AT91_EMAC_RE));
/* Disable PHY interrupt */
disable_phyirq(dev);
/* Disable MAC interrupts */
- at91_emac_write(AT91_EMAC_IDR, AT91_EMAC_RCOM | AT91_EMAC_RBNA
+ at91_emac_write(lp, AT91_EMAC_IDR, AT91_EMAC_RCOM | AT91_EMAC_RBNA
| AT91_EMAC_TUND | AT91_EMAC_RTRY | AT91_EMAC_TCOM
| AT91_EMAC_ROVR | AT91_EMAC_ABT);
@@ -812,7 +843,7 @@ static int at91ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct at91_private *lp = netdev_priv(dev);
- if (at91_emac_read(AT91_EMAC_TSR) & AT91_EMAC_TSR_BNQ) {
+ if (at91_emac_read(lp, AT91_EMAC_TSR) & AT91_EMAC_TSR_BNQ) {
netif_stop_queue(dev);
/* Store packet information (to free when Tx completed) */
@@ -822,9 +853,9 @@ static int at91ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
dev->stats.tx_bytes += skb->len;
/* Set address of the data in the Transmit Address register */
- at91_emac_write(AT91_EMAC_TAR, lp->skb_physaddr);
+ at91_emac_write(lp, AT91_EMAC_TAR, lp->skb_physaddr);
/* Set length of the packet in the Transmit Control register */
- at91_emac_write(AT91_EMAC_TCR, skb->len);
+ at91_emac_write(lp, AT91_EMAC_TCR, skb->len);
} else {
printk(KERN_ERR "at91_ether.c: at91ether_start_xmit() called, but device is busy!\n");
@@ -841,31 +872,32 @@ static int at91ether_start_xmit(struct sk_buff *skb, struct net_device *dev)
*/
static struct net_device_stats *at91ether_stats(struct net_device *dev)
{
+ struct at91_private *lp = netdev_priv(dev);
int ale, lenerr, seqe, lcol, ecol;
if (netif_running(dev)) {
- dev->stats.rx_packets += at91_emac_read(AT91_EMAC_OK); /* Good frames received */
- ale = at91_emac_read(AT91_EMAC_ALE);
+ dev->stats.rx_packets += at91_emac_read(lp, AT91_EMAC_OK); /* Good frames received */
+ ale = at91_emac_read(lp, AT91_EMAC_ALE);
dev->stats.rx_frame_errors += ale; /* Alignment errors */
- lenerr = at91_emac_read(AT91_EMAC_ELR) + at91_emac_read(AT91_EMAC_USF);
+ lenerr = at91_emac_read(lp, AT91_EMAC_ELR) + at91_emac_read(lp, AT91_EMAC_USF);
dev->stats.rx_length_errors += lenerr; /* Excessive Length or Undersize Frame error */
- seqe = at91_emac_read(AT91_EMAC_SEQE);
+ seqe = at91_emac_read(lp, AT91_EMAC_SEQE);
dev->stats.rx_crc_errors += seqe; /* CRC error */
- dev->stats.rx_fifo_errors += at91_emac_read(AT91_EMAC_DRFC); /* Receive buffer not available */
+ dev->stats.rx_fifo_errors += at91_emac_read(lp, AT91_EMAC_DRFC);/* Receive buffer not available */
dev->stats.rx_errors += (ale + lenerr + seqe
- + at91_emac_read(AT91_EMAC_CDE) + at91_emac_read(AT91_EMAC_RJB));
+ + at91_emac_read(lp, AT91_EMAC_CDE) + at91_emac_read(lp, AT91_EMAC_RJB));
- dev->stats.tx_packets += at91_emac_read(AT91_EMAC_FRA); /* Frames successfully transmitted */
- dev->stats.tx_fifo_errors += at91_emac_read(AT91_EMAC_TUE); /* Transmit FIFO underruns */
- dev->stats.tx_carrier_errors += at91_emac_read(AT91_EMAC_CSE); /* Carrier Sense errors */
- dev->stats.tx_heartbeat_errors += at91_emac_read(AT91_EMAC_SQEE);/* Heartbeat error */
+ dev->stats.tx_packets += at91_emac_read(lp, AT91_EMAC_FRA); /* Frames successfully transmitted */
+ dev->stats.tx_fifo_errors += at91_emac_read(lp, AT91_EMAC_TUE); /* Transmit FIFO underruns */
+ dev->stats.tx_carrier_errors += at91_emac_read(lp, AT91_EMAC_CSE); /* Carrier Sense errors */
+ dev->stats.tx_heartbeat_errors += at91_emac_read(lp, AT91_EMAC_SQEE);/* Heartbeat error */
- lcol = at91_emac_read(AT91_EMAC_LCOL);
- ecol = at91_emac_read(AT91_EMAC_ECOL);
+ lcol = at91_emac_read(lp, AT91_EMAC_LCOL);
+ ecol = at91_emac_read(lp, AT91_EMAC_ECOL);
dev->stats.tx_window_errors += lcol; /* Late collisions */
dev->stats.tx_aborted_errors += ecol; /* 16 collisions */
- dev->stats.collisions += (at91_emac_read(AT91_EMAC_SCOL) + at91_emac_read(AT91_EMAC_MCOL) + lcol + ecol);
+ dev->stats.collisions += (at91_emac_read(lp, AT91_EMAC_SCOL) + at91_emac_read(lp, AT91_EMAC_MCOL) + lcol + ecol);
}
return &dev->stats;
}
@@ -922,7 +954,7 @@ static irqreturn_t at91ether_interrupt(int irq, void *dev_id)
/* MAC Interrupt Status register indicates what interrupts are pending.
It is automatically cleared once read. */
- intstatus = at91_emac_read(AT91_EMAC_ISR);
+ intstatus = at91_emac_read(lp, AT91_EMAC_ISR);
if (intstatus & AT91_EMAC_RCOM) /* Receive complete */
at91ether_rx(dev);
@@ -942,9 +974,9 @@ static irqreturn_t at91ether_interrupt(int irq, void *dev_id)
/* Work-around for Errata #11 */
if (intstatus & AT91_EMAC_RBNA) {
- ctl = at91_emac_read(AT91_EMAC_CTL);
- at91_emac_write(AT91_EMAC_CTL, ctl & ~AT91_EMAC_RE);
- at91_emac_write(AT91_EMAC_CTL, ctl | AT91_EMAC_RE);
+ ctl = at91_emac_read(lp, AT91_EMAC_CTL);
+ at91_emac_write(lp, AT91_EMAC_CTL, ctl & ~AT91_EMAC_RE);
+ at91_emac_write(lp, AT91_EMAC_CTL, ctl | AT91_EMAC_RE);
}
if (intstatus & AT91_EMAC_ROVR)
@@ -980,189 +1012,199 @@ static const struct net_device_ops at91ether_netdev_ops = {
};
/*
- * Initialize the ethernet interface
+ * Detect the PHY type, and its address.
*/
-static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_address,
- struct platform_device *pdev, struct clk *ether_clk)
+static int __init at91ether_phy_detect(struct at91_private *lp)
+{
+ unsigned int phyid1, phyid2;
+ unsigned long phy_id;
+ unsigned short phy_address = 0;
+
+ while (phy_address < PHY_MAX_ADDR) {
+ /* Read the PHY ID registers */
+ enable_mdi(lp);
+ read_phy(lp, phy_address, MII_PHYSID1, &phyid1);
+ read_phy(lp, phy_address, MII_PHYSID2, &phyid2);
+ disable_mdi(lp);
+
+ phy_id = (phyid1 << 16) | (phyid2 & 0xfff0);
+ switch (phy_id) {
+ case MII_DM9161_ID: /* Davicom 9161: PHY_ID1 = 0x181, PHY_ID2 = B881 */
+ case MII_DM9161A_ID: /* Davicom 9161A: PHY_ID1 = 0x181, PHY_ID2 = B8A0 */
+ case MII_LXT971A_ID: /* Intel LXT971A: PHY_ID1 = 0x13, PHY_ID2 = 78E0 */
+ case MII_RTL8201_ID: /* Realtek RTL8201: PHY_ID1 = 0, PHY_ID2 = 0x8201 */
+ case MII_BCM5221_ID: /* Broadcom BCM5221: PHY_ID1 = 0x40, PHY_ID2 = 0x61e0 */
+ case MII_DP83847_ID: /* National Semiconductor DP83847: */
+ case MII_DP83848_ID: /* National Semiconductor DP83848: */
+ case MII_AC101L_ID: /* Altima AC101L: PHY_ID1 = 0x22, PHY_ID2 = 0x5520 */
+ case MII_KS8721_ID: /* Micrel KS8721: PHY_ID1 = 0x22, PHY_ID2 = 0x1610 */
+ case MII_T78Q21x3_ID: /* Teridian 78Q21x3: PHY_ID1 = 0x0E, PHY_ID2 = 7237 */
+ case MII_LAN83C185_ID: /* SMSC LAN83C185: PHY_ID1 = 0x0007, PHY_ID2 = 0xC0A1 */
+ /* store detected values */
+ lp->phy_type = phy_id; /* Type of PHY connected */
+ lp->phy_address = phy_address; /* MDI address of PHY */
+ return 1;
+ }
+
+ phy_address++;
+ }
+
+ return 0; /* not detected */
+}
+
+
+/*
+ * Detect MAC & PHY and perform ethernet interface initialization
+ */
+static int __init at91ether_probe(struct platform_device *pdev)
{
struct macb_platform_data *board_data = pdev->dev.platform_data;
+ struct resource *regs;
struct net_device *dev;
struct at91_private *lp;
- unsigned int val;
int res;
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!regs)
+ return -ENOENT;
+
dev = alloc_etherdev(sizeof(struct at91_private));
if (!dev)
return -ENOMEM;
- dev->base_addr = AT91_VA_BASE_EMAC;
- dev->irq = AT91RM9200_ID_EMAC;
+ lp = netdev_priv(dev);
+ lp->board_data = *board_data;
+ spin_lock_init(&lp->lock);
+
+ dev->base_addr = regs->start; /* physical base address */
+ lp->emac_base = ioremap(regs->start, regs->end - regs->start + 1);
+ if (!lp->emac_base) {
+ res = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ /* Clock */
+ lp->ether_clk = clk_get(&pdev->dev, "ether_clk");
+ if (IS_ERR(lp->ether_clk)) {
+ res = -ENODEV;
+ goto err_ioumap;
+ }
+ clk_enable(lp->ether_clk);
/* Install the interrupt handler */
+ dev->irq = platform_get_irq(pdev, 0);
if (request_irq(dev->irq, at91ether_interrupt, 0, dev->name, dev)) {
- free_netdev(dev);
- return -EBUSY;
+ res = -EBUSY;
+ goto err_disable_clock;
}
/* Allocate memory for DMA Receive descriptors */
- lp = netdev_priv(dev);
lp->dlist = (struct recv_desc_bufs *) dma_alloc_coherent(NULL, sizeof(struct recv_desc_bufs), (dma_addr_t *) &lp->dlist_phys, GFP_KERNEL);
if (lp->dlist == NULL) {
- free_irq(dev->irq, dev);
- free_netdev(dev);
- return -ENOMEM;
+ res = -ENOMEM;
+ goto err_free_irq;
}
- lp->board_data = *board_data;
- lp->ether_clk = ether_clk;
- platform_set_drvdata(pdev, dev);
-
- spin_lock_init(&lp->lock);
ether_setup(dev);
dev->netdev_ops = &at91ether_netdev_ops;
dev->ethtool_ops = &at91ether_ethtool_ops;
-
+ platform_set_drvdata(pdev, dev);
SET_NETDEV_DEV(dev, &pdev->dev);
get_mac_address(dev); /* Get ethernet address and store it in dev->dev_addr */
update_mac_address(dev); /* Program ethernet address into MAC */
- at91_emac_write(AT91_EMAC_CTL, 0);
+ at91_emac_write(lp, AT91_EMAC_CTL, 0);
- if (lp->board_data.is_rmii)
- at91_emac_write(AT91_EMAC_CFG, AT91_EMAC_CLK_DIV32 | AT91_EMAC_BIG | AT91_EMAC_RMII);
+ if (board_data->is_rmii)
+ at91_emac_write(lp, AT91_EMAC_CFG, AT91_EMAC_CLK_DIV32 | AT91_EMAC_BIG | AT91_EMAC_RMII);
else
- at91_emac_write(AT91_EMAC_CFG, AT91_EMAC_CLK_DIV32 | AT91_EMAC_BIG);
+ at91_emac_write(lp, AT91_EMAC_CFG, AT91_EMAC_CLK_DIV32 | AT91_EMAC_BIG);
- /* Perform PHY-specific initialization */
- spin_lock_irq(&lp->lock);
- enable_mdi();
- if ((phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID)) {
- read_phy(phy_address, MII_DSCR_REG, &val);
- if ((val & (1 << 10)) == 0) /* DSCR bit 10 is 0 -- fiber mode */
- lp->phy_media = PORT_FIBRE;
- } else if (machine_is_csb337()) {
- /* mix link activity status into LED2 link state */
- write_phy(phy_address, MII_LEDCTRL_REG, 0x0d22);
- } else if (machine_is_ecbat91())
- write_phy(phy_address, MII_LEDCTRL_REG, 0x156A);
+ /* Detect PHY */
+ if (!at91ether_phy_detect(lp)) {
+ printk(KERN_ERR "at91_ether: Could not detect ethernet PHY\n");
+ res = -ENODEV;
+ goto err_free_dmamem;
+ }
- disable_mdi();
- spin_unlock_irq(&lp->lock);
+ initialize_phy(lp);
lp->mii.dev = dev; /* Support for ethtool */
lp->mii.mdio_read = mdio_read;
lp->mii.mdio_write = mdio_write;
- lp->mii.phy_id = phy_address;
+ lp->mii.phy_id = lp->phy_address;
lp->mii.phy_id_mask = 0x1f;
lp->mii.reg_num_mask = 0x1f;
- lp->phy_type = phy_type; /* Type of PHY connected */
- lp->phy_address = phy_address; /* MDI address of PHY */
-
/* Register the network interface */
res = register_netdev(dev);
- if (res) {
- free_irq(dev->irq, dev);
- free_netdev(dev);
- dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);
- return res;
- }
+ if (res)
+ goto err_free_dmamem;
/* Determine current link speed */
spin_lock_irq(&lp->lock);
- enable_mdi();
+ enable_mdi(lp);
update_linkspeed(dev, 0);
- disable_mdi();
+ disable_mdi(lp);
spin_unlock_irq(&lp->lock);
netif_carrier_off(dev); /* will be enabled in open() */
/* If board has no PHY IRQ, use a timer to poll the PHY */
- if (!gpio_is_valid(lp->board_data.phy_irq_pin)) {
+ if (gpio_is_valid(lp->board_data.phy_irq_pin)) {
+ gpio_request(board_data->phy_irq_pin, "ethernet_phy");
+ } else {
+ /* If board has no PHY IRQ, use a timer to poll the PHY */
init_timer(&lp->check_timer);
lp->check_timer.data = (unsigned long)dev;
lp->check_timer.function = at91ether_check_link;
- } else if (lp->board_data.phy_irq_pin >= 32)
- gpio_request(lp->board_data.phy_irq_pin, "ethernet_phy");
+ }
/* Display ethernet banner */
printk(KERN_INFO "%s: AT91 ethernet at 0x%08x int=%d %s%s (%pM)\n",
dev->name, (uint) dev->base_addr, dev->irq,
- at91_emac_read(AT91_EMAC_CFG) & AT91_EMAC_SPD ? "100-" : "10-",
- at91_emac_read(AT91_EMAC_CFG) & AT91_EMAC_FD ? "FullDuplex" : "HalfDuplex",
+ at91_emac_read(lp, AT91_EMAC_CFG) & AT91_EMAC_SPD ? "100-" : "10-",
+ at91_emac_read(lp, AT91_EMAC_CFG) & AT91_EMAC_FD ? "FullDuplex" : "HalfDuplex",
dev->dev_addr);
- if ((phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID))
+ if ((lp->phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID))
printk(KERN_INFO "%s: Davicom 9161 PHY %s\n", dev->name, (lp->phy_media == PORT_FIBRE) ? "(Fiber)" : "(Copper)");
- else if (phy_type == MII_LXT971A_ID)
+ else if (lp->phy_type == MII_LXT971A_ID)
printk(KERN_INFO "%s: Intel LXT971A PHY\n", dev->name);
- else if (phy_type == MII_RTL8201_ID)
+ else if (lp->phy_type == MII_RTL8201_ID)
printk(KERN_INFO "%s: Realtek RTL8201(B)L PHY\n", dev->name);
- else if (phy_type == MII_BCM5221_ID)
+ else if (lp->phy_type == MII_BCM5221_ID)
printk(KERN_INFO "%s: Broadcom BCM5221 PHY\n", dev->name);
- else if (phy_type == MII_DP83847_ID)
+ else if (lp->phy_type == MII_DP83847_ID)
printk(KERN_INFO "%s: National Semiconductor DP83847 PHY\n", dev->name);
- else if (phy_type == MII_DP83848_ID)
+ else if (lp->phy_type == MII_DP83848_ID)
printk(KERN_INFO "%s: National Semiconductor DP83848 PHY\n", dev->name);
- else if (phy_type == MII_AC101L_ID)
+ else if (lp->phy_type == MII_AC101L_ID)
printk(KERN_INFO "%s: Altima AC101L PHY\n", dev->name);
- else if (phy_type == MII_KS8721_ID)
+ else if (lp->phy_type == MII_KS8721_ID)
printk(KERN_INFO "%s: Micrel KS8721 PHY\n", dev->name);
- else if (phy_type == MII_T78Q21x3_ID)
+ else if (lp->phy_type == MII_T78Q21x3_ID)
printk(KERN_INFO "%s: Teridian 78Q21x3 PHY\n", dev->name);
- else if (phy_type == MII_LAN83C185_ID)
+ else if (lp->phy_type == MII_LAN83C185_ID)
printk(KERN_INFO "%s: SMSC LAN83C185 PHY\n", dev->name);
- return 0;
-}
-
-/*
- * Detect MAC and PHY and perform initialization
- */
-static int __init at91ether_probe(struct platform_device *pdev)
-{
- unsigned int phyid1, phyid2;
- int detected = -1;
- unsigned long phy_id;
- unsigned short phy_address = 0;
- struct clk *ether_clk;
-
- ether_clk = clk_get(&pdev->dev, "ether_clk");
- if (IS_ERR(ether_clk)) {
- printk(KERN_ERR "at91_ether: no clock defined\n");
- return -ENODEV;
- }
- clk_enable(ether_clk); /* Enable Peripheral clock */
-
- while ((detected != 0) && (phy_address < 32)) {
- /* Read the PHY ID registers */
- enable_mdi();
- read_phy(phy_address, MII_PHYSID1, &phyid1);
- read_phy(phy_address, MII_PHYSID2, &phyid2);
- disable_mdi();
-
- phy_id = (phyid1 << 16) | (phyid2 & 0xfff0);
- switch (phy_id) {
- case MII_DM9161_ID: /* Davicom 9161: PHY_ID1 = 0x181, PHY_ID2 = B881 */
- case MII_DM9161A_ID: /* Davicom 9161A: PHY_ID1 = 0x181, PHY_ID2 = B8A0 */
- case MII_LXT971A_ID: /* Intel LXT971A: PHY_ID1 = 0x13, PHY_ID2 = 78E0 */
- case MII_RTL8201_ID: /* Realtek RTL8201: PHY_ID1 = 0, PHY_ID2 = 0x8201 */
- case MII_BCM5221_ID: /* Broadcom BCM5221: PHY_ID1 = 0x40, PHY_ID2 = 0x61e0 */
- case MII_DP83847_ID: /* National Semiconductor DP83847: */
- case MII_DP83848_ID: /* National Semiconductor DP83848: */
- case MII_AC101L_ID: /* Altima AC101L: PHY_ID1 = 0x22, PHY_ID2 = 0x5520 */
- case MII_KS8721_ID: /* Micrel KS8721: PHY_ID1 = 0x22, PHY_ID2 = 0x1610 */
- case MII_T78Q21x3_ID: /* Teridian 78Q21x3: PHY_ID1 = 0x0E, PHY_ID2 = 7237 */
- case MII_LAN83C185_ID: /* SMSC LAN83C185: PHY_ID1 = 0x0007, PHY_ID2 = 0xC0A1 */
- detected = at91ether_setup(phy_id, phy_address, pdev, ether_clk);
- break;
- }
+ clk_disable(lp->ether_clk); /* Disable Peripheral clock */
- phy_address++;
- }
+ return 0;
- clk_disable(ether_clk); /* Disable Peripheral clock */
- return detected;
+err_free_dmamem:
+ platform_set_drvdata(pdev, NULL);
+ dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);
+err_free_irq:
+ free_irq(dev->irq, dev);
+err_disable_clock:
+ clk_disable(lp->ether_clk);
+ clk_put(lp->ether_clk);
+err_ioumap:
+ iounmap(lp->emac_base);
+err_free_dev:
+ free_netdev(dev);
+ return res;
}
static int __devexit at91ether_remove(struct platform_device *pdev)
@@ -1170,8 +1212,7 @@ static int __devexit at91ether_remove(struct platform_device *pdev)
struct net_device *dev = platform_get_drvdata(pdev);
struct at91_private *lp = netdev_priv(dev);
- if (gpio_is_valid(lp->board_data.phy_irq_pin) &&
- lp->board_data.phy_irq_pin >= 32)
+ if (gpio_is_valid(lp->board_data.phy_irq_pin))
gpio_free(lp->board_data.phy_irq_pin);
unregister_netdev(dev);
diff --git a/drivers/net/ethernet/cadence/at91_ether.h b/drivers/net/ethernet/cadence/at91_ether.h
index 3725fbb0..0ef6328 100644
--- a/drivers/net/ethernet/cadence/at91_ether.h
+++ b/drivers/net/ethernet/cadence/at91_ether.h
@@ -88,6 +88,7 @@ struct at91_private
struct macb_platform_data board_data; /* board-specific
* configuration (shared with
* macb for common data */
+ void __iomem *emac_base; /* base register address */
struct clk *ether_clk; /* clock */
/* PHY */
--
1.7.10
--
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