#include <linux/delay.h>
#include <linux/crc32.h>
#include <linux/phy.h>
+#include <linux/platform_device.h>
#include <asm/cpu.h>
#include <asm/mipsregs.h>
#include <asm/processor.h>
#include <au1000.h>
+#include <au1xxx_eth.h>
#include <prom.h>
#include "au1000_eth.h"
*
* PHY detection algorithm
*
- * If AU1XXX_PHY_STATIC_CONFIG is undefined, the PHY setup is
+ * If phy_static_config is undefined, the PHY setup is
* autodetected:
*
* mii_probe() first searches the current MAC's MII bus for a PHY,
- * selecting the first (or last, if AU1XXX_PHY_SEARCH_HIGHEST_ADDR is
+ * selecting the first (or last, if phy_search_highest_addr is
* defined) PHY address not already claimed by another netdev.
*
* If nothing was found that way when searching for the 2nd ethernet
- * controller's PHY and AU1XXX_PHY1_SEARCH_ON_MAC0 is defined, then
+ * controller's PHY and phy1_search_mac0 is defined, then
* the first MII bus is searched as well for an unclaimed PHY; this is
* needed in case of a dual-PHY accessible only through the MAC0's MII
* bus.
* controller is not registered to the network subsystem.
*/
-/* autodetection defaults */
-#undef AU1XXX_PHY_SEARCH_HIGHEST_ADDR
-#define AU1XXX_PHY1_SEARCH_ON_MAC0
+/* autodetection defaults: phy1_search_mac0 */
/* static PHY setup
*
* specific irq-map
*/
-#if defined(CONFIG_MIPS_BOSPORUS)
-/*
- * Micrel/Kendin 5 port switch attached to MAC0,
- * MAC0 is associated with PHY address 5 (== WAN port)
- * MAC1 is not associated with any PHY, since it's connected directly
- * to the switch.
- * no interrupts are used
- */
-# define AU1XXX_PHY_STATIC_CONFIG
-
-# define AU1XXX_PHY0_ADDR 5
-# define AU1XXX_PHY0_BUSID 0
-# undef AU1XXX_PHY0_IRQ
-
-# undef AU1XXX_PHY1_ADDR
-# undef AU1XXX_PHY1_BUSID
-# undef AU1XXX_PHY1_IRQ
-#endif
-
-#if defined(AU1XXX_PHY0_BUSID) && (AU1XXX_PHY0_BUSID > 0)
-# error MAC0-associated PHY attached 2nd MACs MII bus not supported yet
-#endif
-
static void enable_mac(struct net_device *dev, int force_reset)
{
unsigned long flags;
struct au1000_private *const aup = netdev_priv(dev);
struct phy_device *phydev = NULL;
-#if defined(AU1XXX_PHY_STATIC_CONFIG)
- BUG_ON(aup->mac_id < 0 || aup->mac_id > 1);
+ if (aup->phy_static_config) {
+ BUG_ON(aup->mac_id < 0 || aup->mac_id > 1);
- if(aup->mac_id == 0) { /* get PHY0 */
-# if defined(AU1XXX_PHY0_ADDR)
- phydev = au_macs[AU1XXX_PHY0_BUSID]->mii_bus->phy_map[AU1XXX_PHY0_ADDR];
-# else
- printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
- dev->name);
- return 0;
-# endif /* defined(AU1XXX_PHY0_ADDR) */
- } else if (aup->mac_id == 1) { /* get PHY1 */
-# if defined(AU1XXX_PHY1_ADDR)
- phydev = au_macs[AU1XXX_PHY1_BUSID]->mii_bus->phy_map[AU1XXX_PHY1_ADDR];
-# else
- printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
- dev->name);
+ if (aup->phy_addr)
+ phydev = aup->mii_bus->phy_map[aup->phy_addr];
+ else
+ printk (KERN_INFO DRV_NAME ":%s: using PHY-less setup\n",
+ dev->name);
return 0;
-# endif /* defined(AU1XXX_PHY1_ADDR) */
- }
-
-#else /* defined(AU1XXX_PHY_STATIC_CONFIG) */
- int phy_addr;
-
- /* find the first (lowest address) PHY on the current MAC's MII bus */
- for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++)
- if (aup->mii_bus->phy_map[phy_addr]) {
- phydev = aup->mii_bus->phy_map[phy_addr];
-# if !defined(AU1XXX_PHY_SEARCH_HIGHEST_ADDR)
- break; /* break out with first one found */
-# endif
- }
+ } else {
+ int phy_addr;
+
+ /* find the first (lowest address) PHY on the current MAC's MII bus */
+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++)
+ if (aup->mii_bus->phy_map[phy_addr]) {
+ phydev = aup->mii_bus->phy_map[phy_addr];
+ if (!aup->phy_search_highest_addr)
+ break; /* break out with first one found */
+ }
-# if defined(AU1XXX_PHY1_SEARCH_ON_MAC0)
- /* try harder to find a PHY */
- if (!phydev && (aup->mac_id == 1)) {
- /* no PHY found, maybe we have a dual PHY? */
- printk (KERN_INFO DRV_NAME ": no PHY found on MAC1, "
- "let's see if it's attached to MAC0...\n");
+ if (aup->phy1_search_mac0) {
+ /* try harder to find a PHY */
+ if (!phydev && (aup->mac_id == 1)) {
+ /* no PHY found, maybe we have a dual PHY? */
+ printk (KERN_INFO DRV_NAME ": no PHY found on MAC1, "
+ "let's see if it's attached to MAC0...\n");
- BUG_ON(!au_macs[0]);
+ /* find the first (lowest address) non-attached PHY on
+ * the MAC0 MII bus */
+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
+ struct phy_device *const tmp_phydev =
+ aup->mii_bus->phy_map[phy_addr];
- /* find the first (lowest address) non-attached PHY on
- * the MAC0 MII bus */
- for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
- struct phy_device *const tmp_phydev =
- au_macs[0]->mii_bus->phy_map[phy_addr];
+ if (aup->mac_id == 1)
+ break;
- if (!tmp_phydev)
- continue; /* no PHY here... */
+ if (!tmp_phydev)
+ continue; /* no PHY here... */
- if (tmp_phydev->attached_dev)
- continue; /* already claimed by MAC0 */
+ if (tmp_phydev->attached_dev)
+ continue; /* already claimed by MAC0 */
- phydev = tmp_phydev;
- break; /* found it */
+ phydev = tmp_phydev;
+ break; /* found it */
+ }
+ }
}
}
-# endif /* defined(AU1XXX_PHY1_SEARCH_OTHER_BUS) */
-#endif /* defined(AU1XXX_PHY_STATIC_CONFIG) */
if (!phydev) {
printk (KERN_ERR DRV_NAME ":%s: no PHY found\n", dev->name);
return -1;
}
}
-static struct {
- u32 base_addr;
- u32 macen_addr;
- int irq;
- struct net_device *dev;
-} iflist[2] = {
-#ifdef CONFIG_SOC_AU1000
- {AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT},
- {AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT}
-#endif
-#ifdef CONFIG_SOC_AU1100
- {AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT}
-#endif
-#ifdef CONFIG_SOC_AU1500
- {AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT},
- {AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT}
-#endif
-#ifdef CONFIG_SOC_AU1550
- {AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT},
- {AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT}
-#endif
-};
-
-static int num_ifs;
-
/*
* ethtool operations
*/
static inline void update_rx_stats(struct net_device *dev, u32 status)
{
- struct au1000_private *aup = netdev_priv(dev);
struct net_device_stats *ps = &dev->stats;
ps->rx_packets++;
}
pDB = aup->tx_db_inuse[aup->tx_head];
- skb_copy_from_linear_data(skb, pDB->vaddr, skb->len);
+ skb_copy_from_linear_data(skb, (void *)pDB->vaddr, skb->len);
if (skb->len < ETH_ZLEN) {
for (i=skb->len; i<ETH_ZLEN; i++) {
((char *)pDB->vaddr)[i] = 0;
.ndo_change_mtu = eth_change_mtu,
};
-static struct net_device * au1000_probe(int port_num)
+static int __devinit au1000_probe(struct platform_device *pdev)
{
static unsigned version_printed = 0;
struct au1000_private *aup = NULL;
+ struct au1000_eth_platform_data *pd;
struct net_device *dev = NULL;
db_dest_t *pDB, *pDBfree;
+ int irq, i, err = 0;
+ struct resource *base, *macen;
char ethaddr[6];
- int irq, i, err;
- u32 base, macen;
- if (port_num >= NUM_ETH_INTERFACES)
- return NULL;
+ base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!base) {
+ printk(KERN_ERR DRV_NAME ": failed to retrieve base register\n");
+ err = -ENODEV;
+ goto out;
+ }
- base = CPHYSADDR(iflist[port_num].base_addr );
- macen = CPHYSADDR(iflist[port_num].macen_addr);
- irq = iflist[port_num].irq;
+ macen = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!macen) {
+ printk(KERN_ERR DRV_NAME ": failed to retrieve MAC Enable register\n");
+ err = -ENODEV;
+ goto out;
+ }
- if (!request_mem_region( base, MAC_IOSIZE, "Au1x00 ENET") ||
- !request_mem_region(macen, 4, "Au1x00 ENET"))
- return NULL;
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ printk(KERN_ERR DRV_NAME ": failed to retrieve IRQ\n");
+ err = -ENODEV;
+ goto out;
+ }
- if (version_printed++ == 0)
- printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR);
+ if (!request_mem_region(base->start, resource_size(base), pdev->name)) {
+ printk(KERN_ERR DRV_NAME ": failed to request memory region for base registers\n");
+ err = -ENXIO;
+ goto out;
+ }
+
+ if (!request_mem_region(macen->start, resource_size(macen), pdev->name)) {
+ printk(KERN_ERR DRV_NAME ": failed to request memory region for MAC enable register\n");
+ err = -ENXIO;
+ goto err_request;
+ }
dev = alloc_etherdev(sizeof(struct au1000_private));
if (!dev) {
printk(KERN_ERR "%s: alloc_etherdev failed\n", DRV_NAME);
- return NULL;
+ err = -ENOMEM;
+ goto err_alloc;
}
- dev->base_addr = base;
- dev->irq = irq;
- dev->netdev_ops = &au1000_netdev_ops;
- SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops);
- dev->watchdog_timeo = ETH_TX_TIMEOUT;
-
- err = register_netdev(dev);
- if (err != 0) {
- printk(KERN_ERR "%s: Cannot register net device, error %d\n",
- DRV_NAME, err);
- free_netdev(dev);
- return NULL;
- }
-
- printk("%s: Au1xx0 Ethernet found at 0x%x, irq %d\n",
- dev->name, base, irq);
-
+ SET_NETDEV_DEV(dev, &pdev->dev);
+ platform_set_drvdata(pdev, dev);
aup = netdev_priv(dev);
spin_lock_init(&aup->lock);
(NUM_TX_BUFFS + NUM_RX_BUFFS),
&aup->dma_addr, 0);
if (!aup->vaddr) {
- free_netdev(dev);
- release_mem_region( base, MAC_IOSIZE);
- release_mem_region(macen, 4);
- return NULL;
+ printk(KERN_ERR DRV_NAME ": failed to allocate data buffers\n");
+ err = -ENOMEM;
+ goto err_vaddr;
}
/* aup->mac is the base address of the MAC's registers */
- aup->mac = (volatile mac_reg_t *)iflist[port_num].base_addr;
+ aup->mac = (volatile mac_reg_t *)ioremap_nocache(base->start, resource_size(base));
+ if (!aup->mac) {
+ printk(KERN_ERR DRV_NAME ": failed to ioremap MAC registers\n");
+ err = -ENXIO;
+ goto err_remap1;
+ }
- /* Setup some variables for quick register address access */
- aup->enable = (volatile u32 *)iflist[port_num].macen_addr;
- aup->mac_id = port_num;
- au_macs[port_num] = aup;
+ /* Setup some variables for quick register address access */
+ aup->enable = (volatile u32 *)ioremap_nocache(macen->start, resource_size(macen));
+ if (!aup->enable) {
+ printk(KERN_ERR DRV_NAME ": failed to ioremap MAC enable register\n");
+ err = -ENXIO;
+ goto err_remap2;
+ }
+ aup->mac_id = pdev->id;
- if (port_num == 0) {
+ if (pdev->id == 0) {
if (prom_get_ethernet_addr(ethaddr) == 0)
memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr));
else {
}
setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
- } else if (port_num == 1)
+ } else if (pdev->id == 1)
setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
/*
* to match those that are printed on their stickers
*/
memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
- dev->dev_addr[5] += port_num;
+ dev->dev_addr[5] += pdev->id;
*aup->enable = 0;
aup->mac_enabled = 0;
+ pd = pdev->dev.platform_data;
+ if (!pd) {
+ printk(KERN_INFO DRV_NAME ": no platform_data passed, PHY search on MAC0\n");
+ aup->phy1_search_mac0 = 1;
+ } else {
+ aup->phy_static_config = pd->phy_static_config;
+ aup->phy_search_highest_addr = pd->phy_search_highest_addr;
+ aup->phy1_search_mac0 = pd->phy1_search_mac0;
+ aup->phy_addr = pd->phy_addr;
+ aup->phy_busid = pd->phy_busid;
+ aup->phy_irq = pd->phy_irq;
+ }
+
+ if (aup->phy_busid && aup->phy_busid > 0) {
+ printk(KERN_ERR DRV_NAME ": MAC0-associated PHY attached 2nd MACs MII"
+ "bus not supported yet\n");
+ err = -ENODEV;
+ goto err_mdiobus_alloc;
+ }
+
aup->mii_bus = mdiobus_alloc();
- if (aup->mii_bus == NULL)
- goto err_out;
+ if (aup->mii_bus == NULL) {
+ printk(KERN_ERR DRV_NAME ": failed to allocate mdiobus structure\n");
+ err = -ENOMEM;
+ goto err_mdiobus_alloc;
+ }
aup->mii_bus->priv = dev;
aup->mii_bus->read = au1000_mdiobus_read;
for(i = 0; i < PHY_MAX_ADDR; ++i)
aup->mii_bus->irq[i] = PHY_POLL;
-
/* if known, set corresponding PHY IRQs */
-#if defined(AU1XXX_PHY_STATIC_CONFIG)
-# if defined(AU1XXX_PHY0_IRQ)
- if (AU1XXX_PHY0_BUSID == aup->mac_id)
- aup->mii_bus->irq[AU1XXX_PHY0_ADDR] = AU1XXX_PHY0_IRQ;
-# endif
-# if defined(AU1XXX_PHY1_IRQ)
- if (AU1XXX_PHY1_BUSID == aup->mac_id)
- aup->mii_bus->irq[AU1XXX_PHY1_ADDR] = AU1XXX_PHY1_IRQ;
-# endif
-#endif
- mdiobus_register(aup->mii_bus);
+ if (aup->phy_static_config)
+ if (aup->phy_irq && aup->phy_busid == aup->mac_id)
+ aup->mii_bus->irq[aup->phy_addr] = aup->phy_irq;
+
+ err = mdiobus_register(aup->mii_bus);
+ if (err) {
+ printk(KERN_ERR DRV_NAME " failed to register MDIO bus\n");
+ goto err_mdiobus_reg;
+ }
- if (mii_probe(dev) != 0) {
+ if (mii_probe(dev) != 0)
goto err_out;
- }
pDBfree = NULL;
/* setup the data buffer descriptors and attach a buffer to each one */
aup->tx_db_inuse[i] = pDB;
}
+ dev->base_addr = base->start;
+ dev->irq = irq;
+ dev->netdev_ops = &au1000_netdev_ops;
+ SET_ETHTOOL_OPS(dev, &au1000_ethtool_ops);
+ dev->watchdog_timeo = ETH_TX_TIMEOUT;
+
/*
* The boot code uses the ethernet controller, so reset it to start
* fresh. au1000_init() expects that the device is in reset state.
*/
reset_mac(dev);
- return dev;
+ err = register_netdev(dev);
+ if (err) {
+ printk(KERN_ERR DRV_NAME "%s: Cannot register net device, aborting.\n",
+ dev->name);
+ goto err_out;
+ }
+
+ printk("%s: Au1xx0 Ethernet found at 0x%lx, irq %d\n",
+ dev->name, (unsigned long)base->start, irq);
+ if (version_printed++ == 0)
+ printk("%s version %s %s\n", DRV_NAME, DRV_VERSION, DRV_AUTHOR);
+
+ return 0;
err_out:
- if (aup->mii_bus != NULL) {
+ if (aup->mii_bus != NULL)
mdiobus_unregister(aup->mii_bus);
- mdiobus_free(aup->mii_bus);
- }
/* here we should have a valid dev plus aup-> register addresses
* so we can reset the mac properly.*/
if (aup->tx_db_inuse[i])
ReleaseDB(aup, aup->tx_db_inuse[i]);
}
+err_mdiobus_reg:
+ mdiobus_free(aup->mii_bus);
+err_mdiobus_alloc:
+ iounmap(aup->enable);
+err_remap2:
+ iounmap(aup->mac);
+err_remap1:
dma_free_noncoherent(NULL, MAX_BUF_SIZE * (NUM_TX_BUFFS + NUM_RX_BUFFS),
(void *)aup->vaddr, aup->dma_addr);
- unregister_netdev(dev);
+err_vaddr:
free_netdev(dev);
- release_mem_region( base, MAC_IOSIZE);
- release_mem_region(macen, 4);
- return NULL;
+err_alloc:
+ release_mem_region(macen->start, resource_size(macen));
+err_request:
+ release_mem_region(base->start, resource_size(base));
+out:
+ return err;
}
-/*
- * Setup the base address and interrupt of the Au1xxx ethernet macs
- * based on cpu type and whether the interface is enabled in sys_pinfunc
- * register. The last interface is enabled if SYS_PF_NI2 (bit 4) is 0.
- */
-static int __init au1000_init_module(void)
+static int __devexit au1000_remove(struct platform_device *pdev)
{
- int ni = (int)((au_readl(SYS_PINFUNC) & (u32)(SYS_PF_NI2)) >> 4);
- struct net_device *dev;
- int i, found_one = 0;
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct au1000_private *aup = netdev_priv(dev);
+ int i;
+ struct resource *base, *macen;
- num_ifs = NUM_ETH_INTERFACES - ni;
+ platform_set_drvdata(pdev, NULL);
+
+ unregister_netdev(dev);
+ mdiobus_unregister(aup->mii_bus);
+ mdiobus_free(aup->mii_bus);
+
+ for (i = 0; i < NUM_RX_DMA; i++)
+ if (aup->rx_db_inuse[i])
+ ReleaseDB(aup, aup->rx_db_inuse[i]);
+
+ for (i = 0; i < NUM_TX_DMA; i++)
+ if (aup->tx_db_inuse[i])
+ ReleaseDB(aup, aup->tx_db_inuse[i]);
+
+ dma_free_noncoherent(NULL, MAX_BUF_SIZE *
+ (NUM_TX_BUFFS + NUM_RX_BUFFS),
+ (void *)aup->vaddr, aup->dma_addr);
+
+ iounmap(aup->mac);
+ iounmap(aup->enable);
+
+ base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(base->start, resource_size(base));
+
+ macen = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ release_mem_region(macen->start, resource_size(macen));
+
+ free_netdev(dev);
- for(i = 0; i < num_ifs; i++) {
- dev = au1000_probe(i);
- iflist[i].dev = dev;
- if (dev)
- found_one++;
- }
- if (!found_one)
- return -ENODEV;
return 0;
}
-static void __exit au1000_cleanup_module(void)
+static struct platform_driver au1000_eth_driver = {
+ .probe = au1000_probe,
+ .remove = __devexit_p(au1000_remove),
+ .driver = {
+ .name = "au1000-eth",
+ .owner = THIS_MODULE,
+ },
+};
+MODULE_ALIAS("platform:au1000-eth");
+
+
+static int __init au1000_init_module(void)
+{
+ return platform_driver_register(&au1000_eth_driver);
+}
+
+static void __exit au1000_exit_module(void)
{
- int i, j;
- struct net_device *dev;
- struct au1000_private *aup;
-
- for (i = 0; i < num_ifs; i++) {
- dev = iflist[i].dev;
- if (dev) {
- aup = netdev_priv(dev);
- unregister_netdev(dev);
- mdiobus_unregister(aup->mii_bus);
- mdiobus_free(aup->mii_bus);
- for (j = 0; j < NUM_RX_DMA; j++)
- if (aup->rx_db_inuse[j])
- ReleaseDB(aup, aup->rx_db_inuse[j]);
- for (j = 0; j < NUM_TX_DMA; j++)
- if (aup->tx_db_inuse[j])
- ReleaseDB(aup, aup->tx_db_inuse[j]);
- dma_free_noncoherent(NULL, MAX_BUF_SIZE *
- (NUM_TX_BUFFS + NUM_RX_BUFFS),
- (void *)aup->vaddr, aup->dma_addr);
- release_mem_region(dev->base_addr, MAC_IOSIZE);
- release_mem_region(CPHYSADDR(iflist[i].macen_addr), 4);
- free_netdev(dev);
- }
- }
+ platform_driver_unregister(&au1000_eth_driver);
}
module_init(au1000_init_module);
-module_exit(au1000_cleanup_module);
+module_exit(au1000_exit_module);
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff