generic: rtl8366rb: add support for initvals from DTS
[openwrt/staging/florian.git] / target / linux / generic / files / drivers / net / phy / rtl8366rb.c
index c95368148d356c2cf4b4d9a0cf5ec5f9e6e0c273..264343a81f701964aeef39be8a63a6bfe53f6a55 100644 (file)
@@ -4,6 +4,7 @@
  * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
  * Copyright (C) 2010 Antti Seppälä <a.seppala@gmail.com>
  * Copyright (C) 2010 Roman Yeryomin <roman@advem.lv>
+ * Copyright (C) 2011 Colin Leitner <colin.leitner@googlemail.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published
@@ -13,7 +14,9 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/platform_device.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 #include <linux/delay.h>
 #include <linux/skbuff.h>
 #include <linux/rtl8366.h>
@@ -21,7 +24,7 @@
 #include "rtl8366_smi.h"
 
 #define RTL8366RB_DRIVER_DESC  "Realtek RTL8366RB ethernet switch driver"
-#define RTL8366RB_DRIVER_VER   "0.2.3"
+#define RTL8366RB_DRIVER_VER   "0.2.4"
 
 #define RTL8366RB_PHY_NO_MAX   4
 #define RTL8366RB_PHY_PAGE_MAX 7
 /* Port Enable Control register */
 #define RTL8366RB_PECR                         0x0001
 
+/* Port Mirror Control Register */
+#define RTL8366RB_PMCR                         0x0007
+#define RTL8366RB_PMCR_SOURCE_PORT(_x)         (_x)
+#define RTL8366RB_PMCR_SOURCE_PORT_MASK                0x000f
+#define RTL8366RB_PMCR_MONITOR_PORT(_x)                ((_x) << 4)
+#define RTL8366RB_PMCR_MONITOR_PORT_MASK       0x00f0
+#define RTL8366RB_PMCR_MIRROR_RX               BIT(8)
+#define RTL8366RB_PMCR_MIRROR_TX               BIT(9)
+#define RTL8366RB_PMCR_MIRROR_SPC              BIT(10)
+#define RTL8366RB_PMCR_MIRROR_ISO              BIT(11)
+
 /* Switch Security Control registers */
 #define RTL8366RB_SSCR0                                0x0002
 #define RTL8366RB_SSCR1                                0x0003
@@ -246,8 +260,8 @@ static int rtl8366rb_reset_chip(struct rtl8366_smi *smi)
        int timeout = 10;
        u32 data;
 
-       rtl8366_smi_write_reg(smi, RTL8366RB_RESET_CTRL_REG,
-                             RTL8366RB_CHIP_CTRL_RESET_HW);
+       rtl8366_smi_write_reg_noack(smi, RTL8366RB_RESET_CTRL_REG,
+                                   RTL8366RB_CHIP_CTRL_RESET_HW);
        do {
                msleep(1);
                if (rtl8366_smi_read_reg(smi, RTL8366RB_RESET_CTRL_REG, &data))
@@ -265,9 +279,34 @@ static int rtl8366rb_reset_chip(struct rtl8366_smi *smi)
        return 0;
 }
 
-static int rtl8366rb_hw_init(struct rtl8366_smi *smi)
+static int rtl8366rb_setup(struct rtl8366_smi *smi)
 {
        int err;
+#ifdef CONFIG_OF
+       unsigned i;
+       struct device_node *np;
+       unsigned num_initvals;
+       const __be32 *paddr;
+
+       np = smi->parent->of_node;
+
+       paddr = of_get_property(np, "realtek,initvals", &num_initvals);
+       if (paddr) {
+               dev_info(smi->parent, "applying initvals from DTS\n");
+
+               if (num_initvals < (2 * sizeof(*paddr)))
+                       return -EINVAL;
+
+               num_initvals /= sizeof(*paddr);
+
+               for (i = 0; i < num_initvals - 1; i += 2) {
+                       u32 reg = be32_to_cpup(paddr + i);
+                       u32 val = be32_to_cpup(paddr + i + 1);
+
+                       REG_WR(smi, reg, val);
+               }
+       }
+#endif
 
        /* set maximum packet length to 1536 bytes */
        REG_RMW(smi, RTL8366RB_SGCR, RTL8366RB_SGCR_MAX_LENGTH_MASK,
@@ -681,59 +720,47 @@ static int rtl8366rb_sw_set_learning_enable(struct switch_dev *dev,
        return 0;
 }
 
-
-static const char *rtl8366rb_speed_str(unsigned speed)
-{
-       switch (speed) {
-       case 0:
-               return "10baseT";
-       case 1:
-               return "100baseT";
-       case 2:
-               return "1000baseT";
-       }
-
-       return "unknown";
-}
-
 static int rtl8366rb_sw_get_port_link(struct switch_dev *dev,
-                                    const struct switch_attr *attr,
-                                    struct switch_val *val)
+                                    int port,
+                                    struct switch_port_link *link)
 {
        struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
-       u32 len = 0, data = 0;
+       u32 data = 0;
+       u32 speed;
 
-       if (val->port_vlan >= RTL8366RB_NUM_PORTS)
+       if (port >= RTL8366RB_NUM_PORTS)
                return -EINVAL;
 
-       memset(smi->buf, '\0', sizeof(smi->buf));
-       rtl8366_smi_read_reg(smi, RTL8366RB_PORT_LINK_STATUS_BASE +
-                            (val->port_vlan / 2), &data);
+       rtl8366_smi_read_reg(smi, RTL8366RB_PORT_LINK_STATUS_BASE + (port / 2),
+                            &data);
 
-       if (val->port_vlan % 2)
+       if (port % 2)
                data = data >> 8;
 
-       if (data & RTL8366RB_PORT_STATUS_LINK_MASK) {
-               len = snprintf(smi->buf, sizeof(smi->buf),
-                               "port:%d link:up speed:%s %s-duplex %s%s%s",
-                               val->port_vlan,
-                               rtl8366rb_speed_str(data &
-                                         RTL8366RB_PORT_STATUS_SPEED_MASK),
-                               (data & RTL8366RB_PORT_STATUS_DUPLEX_MASK) ?
-                                       "full" : "half",
-                               (data & RTL8366RB_PORT_STATUS_TXPAUSE_MASK) ?
-                                       "tx-pause ": "",
-                               (data & RTL8366RB_PORT_STATUS_RXPAUSE_MASK) ?
-                                       "rx-pause " : "",
-                               (data & RTL8366RB_PORT_STATUS_AN_MASK) ?
-                                       "nway ": "");
-       } else {
-               len = snprintf(smi->buf, sizeof(smi->buf), "port:%d link: down",
-                               val->port_vlan);
-       }
+       link->link = !!(data & RTL8366RB_PORT_STATUS_LINK_MASK);
+       if (!link->link)
+               return 0;
 
-       val->value.s = smi->buf;
-       val->len = len;
+       link->duplex = !!(data & RTL8366RB_PORT_STATUS_DUPLEX_MASK);
+       link->rx_flow = !!(data & RTL8366RB_PORT_STATUS_RXPAUSE_MASK);
+       link->tx_flow = !!(data & RTL8366RB_PORT_STATUS_TXPAUSE_MASK);
+       link->aneg = !!(data & RTL8366RB_PORT_STATUS_AN_MASK);
+
+       speed = (data & RTL8366RB_PORT_STATUS_SPEED_MASK);
+       switch (speed) {
+       case 0:
+               link->speed = SWITCH_PORT_SPEED_10;
+               break;
+       case 1:
+               link->speed = SWITCH_PORT_SPEED_100;
+               break;
+       case 2:
+               link->speed = SWITCH_PORT_SPEED_1000;
+               break;
+       default:
+               link->speed = SWITCH_PORT_SPEED_UNKNOWN;
+               break;
+       }
 
        return 0;
 }
@@ -932,41 +959,191 @@ static int rtl8366rb_sw_get_qos_enable(struct switch_dev *dev,
        return 0;
 }
 
-static int rtl8366rb_sw_reset_port_mibs(struct switch_dev *dev,
-                                      const struct switch_attr *attr,
-                                      struct switch_val *val)
+static int rtl8366rb_sw_set_mirror_rx_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
 {
        struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
 
-       if (val->port_vlan >= RTL8366RB_NUM_PORTS)
-               return -EINVAL;
+       if (val->value.i)
+               data = RTL8366RB_PMCR_MIRROR_RX;
+       else
+               data = 0;
 
-       return rtl8366_smi_rmwr(smi, RTL8366RB_MIB_CTRL_REG, 0,
-                               RTL8366RB_MIB_CTRL_PORT_RESET(val->port_vlan));
+       return rtl8366_smi_rmwr(smi, RTL8366RB_PMCR, RTL8366RB_PMCR_MIRROR_RX, data);
 }
 
-static int rtl8366rb_sw_reset_switch(struct switch_dev *dev)
+static int rtl8366rb_sw_get_mirror_rx_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
 {
        struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
-       int err;
+       u32 data;
 
-       err = rtl8366rb_reset_chip(smi);
-       if (err)
-               return err;
+       rtl8366_smi_read_reg(smi, RTL8366RB_PMCR, &data);
+       if (data & RTL8366RB_PMCR_MIRROR_RX)
+               val->value.i = 1;
+       else
+               val->value.i = 0;
 
-       err = rtl8366rb_hw_init(smi);
-       if (err)
-               return err;
+       return 0;
+}
 
-       err = rtl8366_reset_vlan(smi);
-       if (err)
-               return err;
+static int rtl8366rb_sw_set_mirror_tx_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
 
-       err = rtl8366_enable_vlan(smi, 1);
-       if (err)
-               return err;
+       if (val->value.i)
+               data = RTL8366RB_PMCR_MIRROR_TX;
+       else
+               data = 0;
+
+       return rtl8366_smi_rmwr(smi, RTL8366RB_PMCR, RTL8366RB_PMCR_MIRROR_TX, data);
+}
+
+static int rtl8366rb_sw_get_mirror_tx_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
 
-       return rtl8366_enable_all_ports(smi, 1);
+       rtl8366_smi_read_reg(smi, RTL8366RB_PMCR, &data);
+       if (data & RTL8366RB_PMCR_MIRROR_TX)
+               val->value.i = 1;
+       else
+               val->value.i = 0;
+
+       return 0;
+}
+
+static int rtl8366rb_sw_set_monitor_isolation_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       if (val->value.i)
+               data = RTL8366RB_PMCR_MIRROR_ISO;
+       else
+               data = 0;
+
+       return rtl8366_smi_rmwr(smi, RTL8366RB_PMCR, RTL8366RB_PMCR_MIRROR_ISO, data);
+}
+
+static int rtl8366rb_sw_get_monitor_isolation_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       rtl8366_smi_read_reg(smi, RTL8366RB_PMCR, &data);
+       if (data & RTL8366RB_PMCR_MIRROR_ISO)
+               val->value.i = 1;
+       else
+               val->value.i = 0;
+
+       return 0;
+}
+
+static int rtl8366rb_sw_set_mirror_pause_frames_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       if (val->value.i)
+               data = RTL8366RB_PMCR_MIRROR_SPC;
+       else
+               data = 0;
+
+       return rtl8366_smi_rmwr(smi, RTL8366RB_PMCR, RTL8366RB_PMCR_MIRROR_SPC, data);
+}
+
+static int rtl8366rb_sw_get_mirror_pause_frames_enable(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       rtl8366_smi_read_reg(smi, RTL8366RB_PMCR, &data);
+       if (data & RTL8366RB_PMCR_MIRROR_SPC)
+               val->value.i = 1;
+       else
+               val->value.i = 0;
+
+       return 0;
+}
+
+static int rtl8366rb_sw_set_mirror_monitor_port(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       data = RTL8366RB_PMCR_MONITOR_PORT(val->value.i);
+
+       return rtl8366_smi_rmwr(smi, RTL8366RB_PMCR, RTL8366RB_PMCR_MONITOR_PORT_MASK, data);
+}
+
+static int rtl8366rb_sw_get_mirror_monitor_port(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       rtl8366_smi_read_reg(smi, RTL8366RB_PMCR, &data);
+       val->value.i = (data & RTL8366RB_PMCR_MONITOR_PORT_MASK) >> 4;
+
+       return 0;
+}
+
+static int rtl8366rb_sw_set_mirror_source_port(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       data = RTL8366RB_PMCR_SOURCE_PORT(val->value.i);
+
+       return rtl8366_smi_rmwr(smi, RTL8366RB_PMCR, RTL8366RB_PMCR_SOURCE_PORT_MASK, data);
+}
+
+static int rtl8366rb_sw_get_mirror_source_port(struct switch_dev *dev,
+                                   const struct switch_attr *attr,
+                                   struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+       u32 data;
+
+       rtl8366_smi_read_reg(smi, RTL8366RB_PMCR, &data);
+       val->value.i = data & RTL8366RB_PMCR_SOURCE_PORT_MASK;
+
+       return 0;
+}
+
+static int rtl8366rb_sw_reset_port_mibs(struct switch_dev *dev,
+                                      const struct switch_attr *attr,
+                                      struct switch_val *val)
+{
+       struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+
+       if (val->port_vlan >= RTL8366RB_NUM_PORTS)
+               return -EINVAL;
+
+       return rtl8366_smi_rmwr(smi, RTL8366RB_MIB_CTRL_REG, 0,
+                               RTL8366RB_MIB_CTRL_PORT_RESET(val->port_vlan));
 }
 
 static struct switch_attr rtl8366rb_globals[] = {
@@ -1013,18 +1190,53 @@ static struct switch_attr rtl8366rb_globals[] = {
                .set = rtl8366rb_sw_set_qos_enable,
                .get = rtl8366rb_sw_get_qos_enable,
                .max = 1
+       }, {
+               .type = SWITCH_TYPE_INT,
+               .name = "enable_mirror_rx",
+               .description = "Enable mirroring of RX packets",
+               .set = rtl8366rb_sw_set_mirror_rx_enable,
+               .get = rtl8366rb_sw_get_mirror_rx_enable,
+               .max = 1
+       }, {
+               .type = SWITCH_TYPE_INT,
+               .name = "enable_mirror_tx",
+               .description = "Enable mirroring of TX packets",
+               .set = rtl8366rb_sw_set_mirror_tx_enable,
+               .get = rtl8366rb_sw_get_mirror_tx_enable,
+               .max = 1
+       }, {
+               .type = SWITCH_TYPE_INT,
+               .name = "enable_monitor_isolation",
+               .description = "Enable isolation of monitor port (TX packets will be dropped)",
+               .set = rtl8366rb_sw_set_monitor_isolation_enable,
+               .get = rtl8366rb_sw_get_monitor_isolation_enable,
+               .max = 1
+       }, {
+               .type = SWITCH_TYPE_INT,
+               .name = "enable_mirror_pause_frames",
+               .description = "Enable mirroring of RX pause frames",
+               .set = rtl8366rb_sw_set_mirror_pause_frames_enable,
+               .get = rtl8366rb_sw_get_mirror_pause_frames_enable,
+               .max = 1
+       }, {
+               .type = SWITCH_TYPE_INT,
+               .name = "mirror_monitor_port",
+               .description = "Mirror monitor port",
+               .set = rtl8366rb_sw_set_mirror_monitor_port,
+               .get = rtl8366rb_sw_get_mirror_monitor_port,
+               .max = 5
+       }, {
+               .type = SWITCH_TYPE_INT,
+               .name = "mirror_source_port",
+               .description = "Mirror source port",
+               .set = rtl8366rb_sw_set_mirror_source_port,
+               .get = rtl8366rb_sw_get_mirror_source_port,
+               .max = 5
        },
 };
 
 static struct switch_attr rtl8366rb_port[] = {
        {
-               .type = SWITCH_TYPE_STRING,
-               .name = "link",
-               .description = "Get port link information",
-               .max = 1,
-               .set = NULL,
-               .get = rtl8366rb_sw_get_port_link,
-       }, {
                .type = SWITCH_TYPE_NOVAL,
                .name = "reset_mib",
                .description = "Reset single port MIB counters",
@@ -1103,7 +1315,8 @@ static const struct switch_dev_ops rtl8366_ops = {
        .set_vlan_ports = rtl8366_sw_set_vlan_ports,
        .get_port_pvid = rtl8366_sw_get_port_pvid,
        .set_port_pvid = rtl8366_sw_set_port_pvid,
-       .reset_switch = rtl8366rb_sw_reset_switch,
+       .reset_switch = rtl8366_sw_reset_switch,
+       .get_port_link = rtl8366rb_sw_get_port_link,
 };
 
 static int rtl8366rb_switch_init(struct rtl8366_smi *smi)
@@ -1116,7 +1329,7 @@ static int rtl8366rb_switch_init(struct rtl8366_smi *smi)
        dev->ports = RTL8366RB_NUM_PORTS;
        dev->vlans = RTL8366RB_NUM_VIDS;
        dev->ops = &rtl8366_ops;
-       dev->devname = dev_name(smi->parent);
+       dev->alias = dev_name(smi->parent);
 
        err = register_switch(dev, NULL);
        if (err)
@@ -1156,18 +1369,6 @@ static int rtl8366rb_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
        return err;
 }
 
-static int rtl8366rb_setup(struct rtl8366_smi *smi)
-{
-       int ret;
-
-       ret = rtl8366rb_reset_chip(smi);
-       if (ret)
-               return ret;
-
-       ret = rtl8366rb_hw_init(smi);
-       return ret;
-}
-
 static int rtl8366rb_detect(struct rtl8366_smi *smi)
 {
        u32 chip_id = 0;
@@ -1203,6 +1404,7 @@ static int rtl8366rb_detect(struct rtl8366_smi *smi)
 
 static struct rtl8366_smi_ops rtl8366rb_smi_ops = {
        .detect         = rtl8366rb_detect,
+       .reset_chip     = rtl8366rb_reset_chip,
        .setup          = rtl8366rb_setup,
 
        .mii_read       = rtl8366rb_mii_read,
@@ -1221,10 +1423,9 @@ static struct rtl8366_smi_ops rtl8366rb_smi_ops = {
        .enable_port    = rtl8366rb_enable_port,
 };
 
-static int __devinit rtl8366rb_probe(struct platform_device *pdev)
+static int rtl8366rb_probe(struct platform_device *pdev)
 {
        static int rtl8366_smi_version_printed;
-       struct rtl8366_platform_data *pdata;
        struct rtl8366_smi *smi;
        int err;
 
@@ -1232,21 +1433,13 @@ static int __devinit rtl8366rb_probe(struct platform_device *pdev)
                printk(KERN_NOTICE RTL8366RB_DRIVER_DESC
                       " version " RTL8366RB_DRIVER_VER"\n");
 
-       pdata = pdev->dev.platform_data;
-       if (!pdata) {
-               dev_err(&pdev->dev, "no platform data specified\n");
-               err = -EINVAL;
-               goto err_out;
-       }
-
-       smi = rtl8366_smi_alloc(&pdev->dev);
-       if (!smi) {
-               err = -ENOMEM;
-               goto err_out;
-       }
+       smi = rtl8366_smi_probe(pdev);
+       if (!smi)
+               return -ENODEV;
 
-       smi->gpio_sda = pdata->gpio_sda;
-       smi->gpio_sck = pdata->gpio_sck;
+       smi->clk_delay = 10;
+       smi->cmd_read = 0xa9;
+       smi->cmd_write = 0xa8;
        smi->ops = &rtl8366rb_smi_ops;
        smi->cpu_port = RTL8366RB_PORT_NUM_CPU;
        smi->num_ports = RTL8366RB_NUM_PORTS;
@@ -1271,11 +1464,10 @@ static int __devinit rtl8366rb_probe(struct platform_device *pdev)
        rtl8366_smi_cleanup(smi);
  err_free_smi:
        kfree(smi);
- err_out:
        return err;
 }
 
-static int __devexit rtl8366rb_remove(struct platform_device *pdev)
+static int rtl8366rb_remove(struct platform_device *pdev)
 {
        struct rtl8366_smi *smi = platform_get_drvdata(pdev);
 
@@ -1289,13 +1481,22 @@ static int __devexit rtl8366rb_remove(struct platform_device *pdev)
        return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id rtl8366rb_match[] = {
+       { .compatible = "realtek,rtl8366rb" },
+       {},
+};
+MODULE_DEVICE_TABLE(of, rtl8366rb_match);
+#endif
+
 static struct platform_driver rtl8366rb_driver = {
        .driver = {
                .name           = RTL8366RB_DRIVER_NAME,
                .owner          = THIS_MODULE,
+               .of_match_table = of_match_ptr(rtl8366rb_match),
        },
        .probe          = rtl8366rb_probe,
-       .remove         = __devexit_p(rtl8366rb_remove),
+       .remove         = rtl8366rb_remove,
 };
 
 static int __init rtl8366rb_module_init(void)
@@ -1315,5 +1516,6 @@ MODULE_VERSION(RTL8366RB_DRIVER_VER);
 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
 MODULE_AUTHOR("Antti Seppälä <a.seppala@gmail.com>");
 MODULE_AUTHOR("Roman Yeryomin <roman@advem.lv>");
+MODULE_AUTHOR("Colin Leitner <colin.leitner@googlemail.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:" RTL8366RB_DRIVER_NAME);