#include <linux/workqueue.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
+#include <linux/of_mdio.h>
#include <linux/mdio.h>
#include <linux/gpio.h>
ar40xx_write(priv, AR40XX_REG_PORT_FLOWCTRL_THRESH(0), t);
}
-static void
-ar40xx_malibu_init(struct ar40xx_priv *priv)
-{
- int i;
- struct mii_bus *bus;
- u16 val;
-
- bus = priv->mii_bus;
-
- /* war to enable AZ transmitting ability */
- ar40xx_phy_mmd_write(priv, AR40XX_PSGMII_ID, 1,
- AR40XX_MALIBU_PSGMII_MODE_CTRL,
- AR40XX_MALIBU_PHY_PSGMII_MODE_CTRL_ADJUST_VAL);
- for (i = 0; i < AR40XX_NUM_PORTS - 1; i++) {
- /* change malibu control_dac */
- val = ar40xx_phy_mmd_read(priv, i, 7,
- AR40XX_MALIBU_PHY_MMD7_DAC_CTRL);
- val &= ~AR40XX_MALIBU_DAC_CTRL_MASK;
- val |= AR40XX_MALIBU_DAC_CTRL_VALUE;
- ar40xx_phy_mmd_write(priv, i, 7,
- AR40XX_MALIBU_PHY_MMD7_DAC_CTRL, val);
- if (i == AR40XX_MALIBU_PHY_LAST_ADDR) {
- /* to avoid goes into hibernation */
- val = ar40xx_phy_mmd_read(priv, i, 3,
- AR40XX_MALIBU_PHY_RLP_CTRL);
- val &= (~(1<<1));
- ar40xx_phy_mmd_write(priv, i, 3,
- AR40XX_MALIBU_PHY_RLP_CTRL, val);
- }
- }
-
- /* adjust psgmii serdes tx amp */
- mdiobus_write(bus, AR40XX_PSGMII_ID, AR40XX_PSGMII_TX_DRIVER_1_CTRL,
- AR40XX_MALIBU_PHY_PSGMII_REDUCE_SERDES_TX_AMP);
-}
-
static int
ar40xx_hw_init(struct ar40xx_priv *priv)
{
ar40xx_ess_reset(priv);
- if (priv->mii_bus)
- ar40xx_malibu_init(priv);
- else
+ if (!priv->mii_bus)
return -1;
ar40xx_psgmii_self_test(priv);
.get_port_link = ar40xx_sw_get_port_link,
};
-/* Start of phy driver support */
-
-static const u32 ar40xx_phy_ids[] = {
- 0x004dd0b1,
- 0x004dd0b2, /* AR40xx */
-};
-
-static bool
-ar40xx_phy_match(u32 phy_id)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(ar40xx_phy_ids); i++)
- if (phy_id == ar40xx_phy_ids[i])
- return true;
-
- return false;
-}
-
-static bool
-is_ar40xx_phy(struct mii_bus *bus)
-{
- unsigned i;
-
- for (i = 0; i < 4; i++) {
- u32 phy_id;
-
- phy_id = mdiobus_read(bus, i, MII_PHYSID1) << 16;
- phy_id |= mdiobus_read(bus, i, MII_PHYSID2);
- if (!ar40xx_phy_match(phy_id))
- return false;
- }
-
- return true;
-}
-
-static int
-ar40xx_phy_probe(struct phy_device *phydev)
-{
- if (!is_ar40xx_phy(phydev->mdio.bus))
- return -ENODEV;
-
- ar40xx_priv->mii_bus = phydev->mdio.bus;
- phydev->priv = ar40xx_priv;
- if (phydev->mdio.addr == 0)
- ar40xx_priv->phy = phydev;
-
- linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, phydev->supported);
- linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, phydev->advertising);
- return 0;
-}
-
-static void
-ar40xx_phy_remove(struct phy_device *phydev)
-{
- ar40xx_priv->mii_bus = NULL;
- phydev->priv = NULL;
-}
-
-static int
-ar40xx_phy_config_init(struct phy_device *phydev)
-{
- return 0;
-}
-
-static int
-ar40xx_phy_read_status(struct phy_device *phydev)
-{
- if (phydev->mdio.addr != 0)
- return genphy_read_status(phydev);
-
- return 0;
-}
-
-static int
-ar40xx_phy_config_aneg(struct phy_device *phydev)
-{
- if (phydev->mdio.addr == 0)
- return 0;
-
- return genphy_config_aneg(phydev);
-}
-
-static struct phy_driver ar40xx_phy_driver = {
- .phy_id = 0x004d0000,
- .name = "QCA Malibu",
- .phy_id_mask = 0xffff0000,
- .features = PHY_GBIT_FEATURES,
- .probe = ar40xx_phy_probe,
- .remove = ar40xx_phy_remove,
- .config_init = ar40xx_phy_config_init,
- .config_aneg = ar40xx_phy_config_aneg,
- .read_status = ar40xx_phy_read_status,
-};
-
-static uint16_t ar40xx_gpio_get_phy(unsigned int offset)
-{
- return offset / 4;
-}
-
-static uint16_t ar40xx_gpio_get_reg(unsigned int offset)
-{
- return 0x8074 + offset % 4;
-}
-
-static void ar40xx_gpio_set(struct gpio_chip *gc, unsigned int offset,
- int value)
-{
- struct ar40xx_priv *priv = gpiochip_get_data(gc);
-
- ar40xx_phy_mmd_write(priv, ar40xx_gpio_get_phy(offset), 0x7,
- ar40xx_gpio_get_reg(offset),
- value ? 0xA000 : 0x8000);
-}
-
-static int ar40xx_gpio_get(struct gpio_chip *gc, unsigned offset)
-{
- struct ar40xx_priv *priv = gpiochip_get_data(gc);
-
- return ar40xx_phy_mmd_read(priv, ar40xx_gpio_get_phy(offset), 0x7,
- ar40xx_gpio_get_reg(offset)) == 0xA000;
-}
-
-static int ar40xx_gpio_get_dir(struct gpio_chip *gc, unsigned offset)
-{
- return 0; /* only out direction */
-}
-
-static int ar40xx_gpio_dir_out(struct gpio_chip *gc, unsigned offset,
- int value)
-{
- /*
- * the direction out value is used to set the initial value.
- * support of this function is required by leds-gpio.c
- */
- ar40xx_gpio_set(gc, offset, value);
- return 0;
-}
-
-static void ar40xx_register_gpio(struct device *pdev,
- struct ar40xx_priv *priv,
- struct device_node *switch_node)
-{
- struct gpio_chip *gc;
- int err;
-
- gc = devm_kzalloc(pdev, sizeof(*gc), GFP_KERNEL);
- if (!gc)
- return;
-
- gc->label = "ar40xx_gpio",
- gc->base = -1,
- gc->ngpio = 5 /* mmd 0 - 4 */ * 4 /* 0x8074 - 0x8077 */,
- gc->parent = pdev;
- gc->owner = THIS_MODULE;
-
- gc->get_direction = ar40xx_gpio_get_dir;
- gc->direction_output = ar40xx_gpio_dir_out;
- gc->get = ar40xx_gpio_get;
- gc->set = ar40xx_gpio_set;
- gc->can_sleep = true;
- gc->label = priv->dev.name;
- gc->of_node = switch_node;
-
- err = devm_gpiochip_add_data(pdev, gc, priv);
- if (err != 0)
- dev_err(pdev, "Failed to register gpio %d.\n", err);
-}
-
-/* End of phy driver support */
-
/* Platform driver probe function */
static int ar40xx_probe(struct platform_device *pdev)
{
struct device_node *switch_node;
struct device_node *psgmii_node;
+ struct device_node *mdio_node;
const __be32 *mac_mode;
struct clk *ess_clk;
struct switch_dev *swdev;
return -EIO;
}
- ret = phy_driver_register(&ar40xx_phy_driver, THIS_MODULE);
- if (ret) {
- dev_err(&pdev->dev, "Failed to register ar40xx phy driver!\n");
- return -EIO;
- }
-
mutex_init(&priv->reg_mutex);
mutex_init(&priv->mib_lock);
INIT_DELAYED_WORK(&priv->mib_work, ar40xx_mib_work_func);
/* register switch */
swdev = &priv->dev;
+ mdio_node = of_find_compatible_node(NULL, NULL, "qcom,ipq4019-mdio");
+ if (!mdio_node) {
+ dev_err(&pdev->dev, "Probe failed - Cannot find mdio node by phandle!\n");
+ ret = -ENODEV;
+ goto err_missing_phy;
+ }
+
+ priv->mii_bus = of_mdio_find_bus(mdio_node);
+
if (priv->mii_bus == NULL) {
dev_err(&pdev->dev, "Probe failed - Missing PHYs!\n");
ret = -ENODEV;
swdev->ports = AR40XX_NUM_PORTS;
swdev->ops = &ar40xx_sw_ops;
ret = register_switch(swdev, NULL);
- if (ret)
- goto err_unregister_phy;
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Switch registration failed!\n");
+ return ret;
+ }
num_mibs = ARRAY_SIZE(ar40xx_mibs);
len = priv->dev.ports * num_mibs *
ar40xx_start(priv);
- if (of_property_read_bool(switch_node, "gpio-controller"))
- ar40xx_register_gpio(&pdev->dev, ar40xx_priv, switch_node);
-
return 0;
err_unregister_switch:
unregister_switch(&priv->dev);
-err_unregister_phy:
- phy_driver_unregister(&ar40xx_phy_driver);
err_missing_phy:
platform_set_drvdata(pdev, NULL);
return ret;
unregister_switch(&priv->dev);
- phy_driver_unregister(&ar40xx_phy_driver);
-
return 0;
}
projects / openwrt / staging / mkresin.git / commitdiff