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Diffstat (limited to 'target/linux/generic/files/drivers/net/phy/adm6996.c')
-rw-r--r--target/linux/generic/files/drivers/net/phy/adm6996.c171
1 files changed, 171 insertions, 0 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/adm6996.c b/target/linux/generic/files/drivers/net/phy/adm6996.c
new file mode 100644
index 0000000000..bc40be067a
--- /dev/null
+++ b/target/linux/generic/files/drivers/net/phy/adm6996.c
@@ -0,0 +1,171 @@
+/*
+ * ADM6996 switch driver
+ *
+ * Copyright (c) 2008 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License v2 as published by the
+ * Free Software Foundation
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+#include "adm6996.h"
+
+MODULE_DESCRIPTION("Infineon ADM6996 Switch");
+MODULE_AUTHOR("Felix Fietkau");
+MODULE_LICENSE("GPL");
+
+struct adm6996_priv {
+ /* use abstraction for regops, we want to add gpio support in the future */
+ u16 (*read)(struct phy_device *phydev, enum admreg reg);
+ void (*write)(struct phy_device *phydev, enum admreg reg, u16 val);
+};
+
+#define to_adm(_phy) ((struct adm6996_priv *) (_phy)->priv)
+
+
+static inline u16
+r16(struct phy_device *pdev, enum admreg reg)
+{
+ return to_adm(pdev)->read(pdev, reg);
+}
+
+static inline void
+w16(struct phy_device *pdev, enum admreg reg, u16 val)
+{
+ to_adm(pdev)->write(pdev, reg, val);
+}
+
+
+static u16
+adm6996_read_mii_reg(struct phy_device *phydev, enum admreg reg)
+{
+ return phydev->bus->read(phydev->bus, PHYADDR(reg));
+}
+
+static void
+adm6996_write_mii_reg(struct phy_device *phydev, enum admreg reg, u16 val)
+{
+ phydev->bus->write(phydev->bus, PHYADDR(reg), val);
+}
+
+
+static int adm6996_config_init(struct phy_device *pdev)
+{
+ int i;
+
+ printk("%s: ADM6996 PHY driver attached.\n", pdev->attached_dev->name);
+ pdev->supported = ADVERTISED_100baseT_Full;
+ pdev->advertising = ADVERTISED_100baseT_Full;
+
+ /* initialize port and vlan settings */
+ for (i = 0; i < ADM_PHY_PORTS; i++) {
+ w16(pdev, adm_portcfg[i], ADM_PORTCFG_INIT |
+ ADM_PORTCFG_PVID((i == ADM_WAN_PORT) ? 1 : 0));
+ }
+ w16(pdev, adm_portcfg[5], ADM_PORTCFG_CPU);
+
+ /* reset all ports */
+ for (i = 0; i < ADM_PHY_PORTS; i++) {
+ w16(pdev, ADM_PHY_PORT(i), ADM_PHYCFG_INIT);
+ }
+
+ return 0;
+}
+
+static int adm6996_read_status(struct phy_device *phydev)
+{
+ phydev->speed = SPEED_100;
+ phydev->duplex = DUPLEX_FULL;
+ phydev->link = 1;
+ return 0;
+}
+
+static int adm6996_config_aneg(struct phy_device *phydev)
+{
+ return 0;
+}
+
+static int adm6996_fixup(struct phy_device *dev)
+{
+ struct mii_bus *bus = dev->bus;
+ u16 reg;
+
+ /* look for the switch on the bus */
+ reg = bus->read(bus, PHYADDR(ADM_SIG0)) & ADM_SIG0_MASK;
+ if (reg != ADM_SIG0_VAL)
+ return 0;
+
+ reg = bus->read(bus, PHYADDR(ADM_SIG1)) & ADM_SIG1_MASK;
+ if (reg != ADM_SIG1_VAL)
+ return 0;
+
+ dev->phy_id = (ADM_SIG0_VAL << 16) | ADM_SIG1_VAL;
+ return 0;
+}
+
+static int adm6996_probe(struct phy_device *pdev)
+{
+ struct adm6996_priv *priv;
+
+ priv = kzalloc(sizeof(struct adm6996_priv), GFP_KERNEL);
+ if (priv == NULL)
+ return -ENOMEM;
+
+ priv->read = adm6996_read_mii_reg;
+ priv->write = adm6996_write_mii_reg;
+ pdev->priv = priv;
+ return 0;
+}
+
+static void adm6996_remove(struct phy_device *pdev)
+{
+ kfree(pdev->priv);
+}
+
+
+static struct phy_driver adm6996_driver = {
+ .name = "Infineon ADM6996",
+ .phy_id = (ADM_SIG0_VAL << 16) | ADM_SIG1_VAL,
+ .phy_id_mask = 0xffffffff,
+ .features = PHY_BASIC_FEATURES,
+ .probe = adm6996_probe,
+ .remove = adm6996_remove,
+ .config_init = &adm6996_config_init,
+ .config_aneg = &adm6996_config_aneg,
+ .read_status = &adm6996_read_status,
+ .driver = { .owner = THIS_MODULE,},
+};
+
+static int __init adm6996_init(void)
+{
+ phy_register_fixup_for_id(PHY_ANY_ID, adm6996_fixup);
+ return phy_driver_register(&adm6996_driver);
+}
+
+static void __exit adm6996_exit(void)
+{
+ phy_driver_unregister(&adm6996_driver);
+}
+
+module_init(adm6996_init);
+module_exit(adm6996_exit);