rtl8366_smi: move RTL8366S driver into a separate file
[openwrt.git] / target / linux / ar71xx / files / drivers / net / phy / rtl8366_smi.c
index 6c807bc..70218fc 100644 (file)
@@ -1,8 +1,7 @@
 /*
- * Platform driver for the Realtek RTL8366 ethernet switch
+ * Realtek RTL8366 SMI interface driver
  *
- * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2010 Antti Seppälä <a.seppala@gmail.com>
+ * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
  *
  * 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
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
+#include <linux/device.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/spinlock.h>
-#include <linux/skbuff.h>
-#include <linux/switch.h>
-#include <linux/phy.h>
-#include <linux/rtl8366_smi.h>
 
-/* #define DEBUG 1 */
-
-#ifdef DEBUG
-#include <linux/debugfs.h>
-#endif
-
-#define RTL8366_SMI_DRIVER_NAME        "rtl8366-smi"
-#define RTL8366_SMI_DRIVER_DESC        "Realtek RTL8366 switch driver"
-#define RTL8366_SMI_DRIVER_VER "0.1.1"
-
-#define RTL8366S_PHY_NO_MAX                 4
-#define RTL8366S_PHY_PAGE_MAX               7
-#define RTL8366S_PHY_ADDR_MAX               31
-
-#define RTL8366_CHIP_GLOBAL_CTRL_REG        0x0000
-#define RTL8366_CHIP_CTRL_VLAN              (1 << 13)
-
-#define RTL8366_RESET_CTRL_REG              0x0100
-#define RTL8366_CHIP_CTRL_RESET_HW          1
-#define RTL8366_CHIP_CTRL_RESET_SW          (1 << 1)
-
-#define RTL8366S_CHIP_VERSION_CTRL_REG      0x0104
-#define RTL8366S_CHIP_VERSION_MASK          0xf
-#define RTL8366S_CHIP_ID_REG                0x0105
-#define RTL8366S_CHIP_ID_8366               0x8366
-
-/* PHY registers control */
-#define RTL8366S_PHY_ACCESS_CTRL_REG        0x8028
-#define RTL8366S_PHY_ACCESS_DATA_REG        0x8029
-
-#define RTL8366S_PHY_CTRL_READ              1
-#define RTL8366S_PHY_CTRL_WRITE             0
-
-#define RTL8366S_PHY_REG_MASK               0x1f
-#define RTL8366S_PHY_PAGE_OFFSET            5
-#define RTL8366S_PHY_PAGE_MASK              (0x7 << 5)
-#define RTL8366S_PHY_NO_OFFSET              9
-#define RTL8366S_PHY_NO_MASK                (0x1f << 9)
+#include "rtl8366_smi.h"
 
 #define RTL8366_SMI_ACK_RETRY_COUNT         5
 #define RTL8366_SMI_CLK_DELAY               10 /* nsec */
 
-/* LED control registers */
-#define RTL8366_LED_BLINKRATE_REG           0x0420
-#define RTL8366_LED_BLINKRATE_BIT           0
-#define RTL8366_LED_BLINKRATE_MASK          0x0007
-
-#define RTL8366_LED_CTRL_REG                0x0421
-#define RTL8366_LED_0_1_CTRL_REG            0x0422
-#define RTL8366_LED_2_3_CTRL_REG            0x0423
-
-#define RTL8366S_MIB_COUNT                  33
-#define RTL8366S_GLOBAL_MIB_COUNT           1
-#define RTL8366S_MIB_COUNTER_PORT_OFFSET    0x0040
-#define RTL8366S_MIB_COUNTER_BASE           0x1000
-#define RTL8366S_MIB_CTRL_REG               0x11F0
-#define RTL8366S_MIB_CTRL_USER_MASK         0x01FF
-#define RTL8366S_MIB_CTRL_BUSY_MASK         0x0001
-#define RTL8366S_MIB_CTRL_RESET_MASK        0x0002
-
-#define RTL8366S_MIB_CTRL_GLOBAL_RESET_MASK 0x0004
-#define RTL8366S_MIB_CTRL_PORT_RESET_BIT    0x0003
-#define RTL8366S_MIB_CTRL_PORT_RESET_MASK   0x01FC
-
-
-#define RTL8366S_PORT_VLAN_CTRL_BASE        0x0058
-#define RTL8366S_VLAN_TABLE_READ_BASE       0x018B
-#define RTL8366S_VLAN_TABLE_WRITE_BASE      0x0185
-
-#define RTL8366S_VLAN_TB_CTRL_REG           0x010F
-
-#define RTL8366S_TABLE_ACCESS_CTRL_REG      0x0180
-#define RTL8366S_TABLE_VLAN_READ_CTRL       0x0E01
-#define RTL8366S_TABLE_VLAN_WRITE_CTRL      0x0F01
-
-#define RTL8366S_VLAN_MEMCONF_BASE          0x0016
-
-
-#define RTL8366S_PORT_LINK_STATUS_BASE      0x0060
-#define RTL8366S_PORT_STATUS_SPEED_MASK     0x0003
-#define RTL8366S_PORT_STATUS_DUPLEX_MASK    0x0004
-#define RTL8366S_PORT_STATUS_LINK_MASK      0x0010
-#define RTL8366S_PORT_STATUS_TXPAUSE_MASK   0x0020
-#define RTL8366S_PORT_STATUS_RXPAUSE_MASK   0x0040
-#define RTL8366S_PORT_STATUS_AN_MASK        0x0080
-
-
-#define RTL8366_PORT_NUM_CPU                5
-#define RTL8366_NUM_PORTS                   6
-#define RTL8366_NUM_VLANS                   16
-#define RTL8366_NUM_LEDGROUPS               4
-#define RTL8366_NUM_VIDS                    4096
-#define RTL8366S_PRIORITYMAX                7
-#define RTL8366S_FIDMAX                            7
-
-
-#define RTL8366_PORT_1                      (1 << 0) /* In userspace port 0 */
-#define RTL8366_PORT_2                      (1 << 1) /* In userspace port 1 */
-#define RTL8366_PORT_3                      (1 << 2) /* In userspace port 2 */
-#define RTL8366_PORT_4                      (1 << 3) /* In userspace port 3 */
-
-#define RTL8366_PORT_UNKNOWN                (1 << 4) /* No known connection */
-#define RTL8366_PORT_CPU                    (1 << 5) /* CPU port */
-
-#define RTL8366_PORT_ALL                    (RTL8366_PORT_1 |       \
-                                            RTL8366_PORT_2 |       \
-                                            RTL8366_PORT_3 |       \
-                                            RTL8366_PORT_4 |       \
-                                            RTL8366_PORT_UNKNOWN | \
-                                            RTL8366_PORT_CPU)
-
-#define RTL8366_PORT_ALL_BUT_CPU            (RTL8366_PORT_1 |       \
-                                            RTL8366_PORT_2 |       \
-                                            RTL8366_PORT_3 |       \
-                                            RTL8366_PORT_4 |       \
-                                            RTL8366_PORT_UNKNOWN)
-
-#define RTL8366_PORT_ALL_EXTERNAL           (RTL8366_PORT_1 |       \
-                                            RTL8366_PORT_2 |       \
-                                            RTL8366_PORT_3 |       \
-                                            RTL8366_PORT_4)
-
-#define RTL8366_PORT_ALL_INTERNAL           (RTL8366_PORT_UNKNOWN | \
-                                            RTL8366_PORT_CPU)
-
-struct rtl8366s_vlanconfig {
-       u16     reserved2:1;
-       u16     priority:3;
-       u16     vid:12;
-
-       u16     reserved1:1;
-       u16     fid:3;
-       u16     untag:6;
-       u16     member:6;
-};
-
-struct rtl8366s_vlan4kentry {
-       u16     reserved1:4;
-       u16     vid:12;
-
-       u16     reserved2:1;
-       u16     fid:3;
-       u16     untag:6;
-       u16     member:6;
-};
-
-static const char *MIBCOUNTERS[] = { "IfInOctets                        ",
-                                    "EtherStatsOctets                  ",
-                                    "EtherStatsUnderSizePkts           ",
-                                    "EtherFregament                    ",
-                                    "EtherStatsPkts64Octets            ",
-                                    "EtherStatsPkts65to127Octets       ",
-                                    "EtherStatsPkts128to255Octets      ",
-                                    "EtherStatsPkts256to511Octets      ",
-                                    "EtherStatsPkts512to1023Octets     ",
-                                    "EtherStatsPkts1024to1518Octets    ",
-                                    "EtherOversizeStats                ",
-                                    "EtherStatsJabbers                 ",
-                                    "IfInUcastPkts                     ",
-                                    "EtherStatsMulticastPkts           ",
-                                    "EtherStatsBroadcastPkts           ",
-                                    "EtherStatsDropEvents              ",
-                                    "Dot3StatsFCSErrors                ",
-                                    "Dot3StatsSymbolErrors             ",
-                                    "Dot3InPauseFrames                 ",
-                                    "Dot3ControlInUnknownOpcodes       ",
-                                    "IfOutOctets                       ",
-                                    "Dot3StatsSingleCollisionFrames    ",
-                                    "Dot3StatMultipleCollisionFrames   ",
-                                    "Dot3sDeferredTransmissions        ",
-                                    "Dot3StatsLateCollisions           ",
-                                    "EtherStatsCollisions              ",
-                                    "Dot3StatsExcessiveCollisions      ",
-                                    "Dot3OutPauseFrames                ",
-                                    "Dot1dBasePortDelayExceededDiscards",
-                                    "Dot1dTpPortInDiscards             ",
-                                    "IfOutUcastPkts                    ",
-                                    "IfOutMulticastPkts                ",
-                                    "IfOutBroadcastPkts                ",
-                                    NULL };
-
-struct rtl8366_smi {
-       struct platform_device             *pdev;
-       struct rtl8366_smi_platform_data   *pdata;
-       spinlock_t                         lock;
-       struct mii_bus                     *mii_bus;
-       struct switch_dev                  dev;
-       int                                mii_irq[PHY_MAX_ADDR];
-       char buf[4096];
-#ifdef DEBUG
-       struct dentry                      *debugfs_root;
-#endif
-};
-
-#ifdef DEBUG
-u16 g_dbg_reg;
-#endif
-
-static inline struct rtl8366_smi *sw_to_rtl8366(struct switch_dev *sw)
-{
-       return container_of(sw, struct rtl8366_smi, dev);
-}
-
 static inline void rtl8366_smi_clk_delay(struct rtl8366_smi *smi)
 {
        ndelay(RTL8366_SMI_CLK_DELAY);
@@ -231,8 +27,8 @@ static inline void rtl8366_smi_clk_delay(struct rtl8366_smi *smi)
 
 static void rtl8366_smi_start(struct rtl8366_smi *smi)
 {
-       unsigned int sda = smi->pdata->gpio_sda;
-       unsigned int sck = smi->pdata->gpio_sck;
+       unsigned int sda = smi->gpio_sda;
+       unsigned int sck = smi->gpio_sck;
 
        /*
         * Set GPIO pins to output mode, with initial state:
@@ -260,8 +56,8 @@ static void rtl8366_smi_start(struct rtl8366_smi *smi)
 
 static void rtl8366_smi_stop(struct rtl8366_smi *smi)
 {
-       unsigned int sda = smi->pdata->gpio_sda;
-       unsigned int sck = smi->pdata->gpio_sck;
+       unsigned int sda = smi->gpio_sda;
+       unsigned int sck = smi->gpio_sck;
 
        rtl8366_smi_clk_delay(smi);
        gpio_set_value(sda, 0);
@@ -288,8 +84,8 @@ static void rtl8366_smi_stop(struct rtl8366_smi *smi)
 
 static void rtl8366_smi_write_bits(struct rtl8366_smi *smi, u32 data, u32 len)
 {
-       unsigned int sda = smi->pdata->gpio_sda;
-       unsigned int sck = smi->pdata->gpio_sck;
+       unsigned int sda = smi->gpio_sda;
+       unsigned int sck = smi->gpio_sck;
 
        for (; len > 0; len--) {
                rtl8366_smi_clk_delay(smi);
@@ -310,8 +106,8 @@ static void rtl8366_smi_write_bits(struct rtl8366_smi *smi, u32 data, u32 len)
 
 static void rtl8366_smi_read_bits(struct rtl8366_smi *smi, u32 len, u32 *data)
 {
-       unsigned int sda = smi->pdata->gpio_sda;
-       unsigned int sck = smi->pdata->gpio_sck;
+       unsigned int sda = smi->gpio_sda;
+       unsigned int sck = smi->gpio_sck;
 
        gpio_direction_input(sda);
 
@@ -385,7 +181,7 @@ static int rtl8366_smi_read_byte1(struct rtl8366_smi *smi, u8 *data)
        return 0;
 }
 
-static int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
+int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
 {
        unsigned long flags;
        u8 lo = 0;
@@ -426,8 +222,9 @@ static int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
 
        return ret;
 }
+EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg);
 
-static int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
+int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
 {
        unsigned long flags;
        int ret;
@@ -469,1520 +266,50 @@ static int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
 
        return ret;
 }
+EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg);
 
-static int rtl8366_smi_read_phy_reg(struct rtl8366_smi *smi,
-                                   u32 phy_no, u32 page, u32 addr, u32 *data)
-{
-       u32 reg;
-       int ret;
-
-       if (phy_no > RTL8366S_PHY_NO_MAX)
-               return -EINVAL;
-
-       if (page > RTL8366S_PHY_PAGE_MAX)
-               return -EINVAL;
-
-       if (addr > RTL8366S_PHY_ADDR_MAX)
-               return -EINVAL;
-
-       ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
-                                   RTL8366S_PHY_CTRL_READ);
-       if (ret)
-               return ret;
-
-       reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
-             ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
-             (addr & RTL8366S_PHY_REG_MASK);
-
-       ret = rtl8366_smi_write_reg(smi, reg, 0);
-       if (ret)
-               return ret;
-
-       ret = rtl8366_smi_read_reg(smi, RTL8366S_PHY_ACCESS_DATA_REG, data);
-       if (ret)
-               return ret;
-
-       return 0;
-}
-
-static int rtl8366_smi_write_phy_reg(struct rtl8366_smi *smi,
-                                    u32 phy_no, u32 page, u32 addr, u32 data)
-{
-       u32 reg;
-       int ret;
-
-       if (phy_no > RTL8366S_PHY_NO_MAX)
-               return -EINVAL;
-
-       if (page > RTL8366S_PHY_PAGE_MAX)
-               return -EINVAL;
-
-       if (addr > RTL8366S_PHY_ADDR_MAX)
-               return -EINVAL;
-
-       ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
-                                   RTL8366S_PHY_CTRL_WRITE);
-       if (ret)
-               return ret;
-
-       reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
-             ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
-             (addr & RTL8366S_PHY_REG_MASK);
-
-       ret = rtl8366_smi_write_reg(smi, reg, data);
-       if (ret)
-               return ret;
-
-       return 0;
-}
-
-static int rtl8366_get_mib_counter(struct rtl8366_smi *smi, int counter,
-                                  int port, unsigned long long *val)
-{
-       int i;
-       int err;
-       u32 addr, data, regoffset;
-       u64 mibvalue;
-
-       /* address offset to MIBs counter */
-       const u16 mibLength[RTL8366S_MIB_COUNT] = {4, 4, 2, 2, 2, 2, 2, 2, 2,
-                                                  2, 2, 2, 2, 2, 2, 2, 2, 2,
-                                                  2, 2, 4, 2, 2, 2, 2, 2, 2,
-                                                  2, 2, 2, 2, 2, 2};
-
-       if (port > RTL8366_NUM_PORTS || counter >= RTL8366S_MIB_COUNT)
-               return -EINVAL;
-
-       i = 0;
-       regoffset = RTL8366S_MIB_COUNTER_PORT_OFFSET * (port);
-
-       while (i < counter) {
-               regoffset += mibLength[i];
-               i++;
-       }
-
-       addr = RTL8366S_MIB_COUNTER_BASE + regoffset;
-
-
-       /* writing access counter address first */
-       /* then ASIC will prepare 64bits counter wait for being retrived */
-       data = 0;/* writing data will be discard by ASIC */
-       err = rtl8366_smi_write_reg(smi, addr, data);
-       if (err)
-               return err;
-
-       /* read MIB control register */
-       err =  rtl8366_smi_read_reg(smi, RTL8366S_MIB_CTRL_REG, &data);
-       if (err)
-               return err;
-
-       if (data & RTL8366S_MIB_CTRL_BUSY_MASK)
-               return -EBUSY;
-
-       if (data & RTL8366S_MIB_CTRL_RESET_MASK)
-               return -EIO;
-
-       mibvalue = 0;
-       addr = addr + mibLength[counter] - 1;
-       i = mibLength[counter];
-
-       while (i) {
-               err = rtl8366_smi_read_reg(smi, addr, &data);
-               if (err)
-                       return err;
-
-               mibvalue = (mibvalue << 16) | (data & 0xFFFF);
-
-               addr--;
-               i--;
-       }
-
-       *val = mibvalue;
-       return 0;
-}
-
-static int rtl8366s_get_vlan_4k_entry(struct rtl8366_smi *smi, u32 vid,
-                                     struct rtl8366s_vlan4kentry *vlan4k)
+int rtl8366_smi_init(struct rtl8366_smi *smi)
 {
        int err;
-       u32 data;
-       u16 *tableaddr;
 
-       memset(vlan4k, '\0', sizeof(struct rtl8366s_vlan4kentry));
-       vlan4k->vid = vid;
-
-       if (vid >= RTL8366_NUM_VIDS)
+       if (!smi->parent)
                return -EINVAL;
 
-       tableaddr = (u16 *)vlan4k;
-
-       /* write VID */
-       data = *tableaddr;
-       err = rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE, data);
-       if (err)
-               return err;
-
-       /* write table access control word */
-       err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
-                                   RTL8366S_TABLE_VLAN_READ_CTRL);
-       if (err)
-               return err;
-
-       err = rtl8366_smi_read_reg(smi, RTL8366S_VLAN_TABLE_READ_BASE, &data);
-       if (err)
-               return err;
-
-       *tableaddr = data;
-       tableaddr++;
-
-       err = rtl8366_smi_read_reg(smi, RTL8366S_VLAN_TABLE_READ_BASE + 1,
-                                  &data);
-       if (err)
-               return err;
-
-       *tableaddr = data;
-       vlan4k->vid = vid;
-
-       return 0;
-}
-
-static int rtl8366s_set_vlan_4k_entry(struct rtl8366_smi *smi,
-                                     const struct rtl8366s_vlan4kentry *vlan4k)
-{
-       int err;
-       u32 data;
-       u16 *tableaddr;
-
-       if (vlan4k->vid >= RTL8366_NUM_VIDS ||
-           vlan4k->member > RTL8366_PORT_ALL ||
-           vlan4k->untag > RTL8366_PORT_ALL ||
-           vlan4k->fid > RTL8366S_FIDMAX)
-               return -EINVAL;
-
-       tableaddr = (u16 *)vlan4k;
-
-       data = *tableaddr;
-
-       err = rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE, data);
-       if (err)
-               return err;
-
-       tableaddr++;
-
-       data = *tableaddr;
-
-       rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE + 1, data);
-
-
-       /* write table access control word */
-       err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
-                                   RTL8366S_TABLE_VLAN_WRITE_CTRL);
-       if (err)
-               return err;
-
-       return 0;
-}
-
-static int rtl8366s_get_vlan_member_config(struct rtl8366_smi *smi, u32 index,
-                                          struct rtl8366s_vlanconfig *vlanmc)
-{
-       int err;
-       u32 addr;
-       u32 data;
-       u16 *tableaddr;
-
-       memset(vlanmc, '\0', sizeof(struct rtl8366s_vlanconfig));
-
-       if (index >= RTL8366_NUM_VLANS)
-               return -EINVAL;
-
-       tableaddr = (u16 *)vlanmc;
-
-       addr = RTL8366S_VLAN_MEMCONF_BASE + (index << 1);
-
-       err = rtl8366_smi_read_reg(smi, addr, &data);
-       if (err)
-               return err;
-
-       *tableaddr = data;
-       tableaddr++;
-
-       addr = RTL8366S_VLAN_MEMCONF_BASE + 1 + (index << 1);
-
-       err = rtl8366_smi_read_reg(smi, addr, &data);
-       if (err)
-               return err;
-
-       *tableaddr = data;
-
-       return 0;
-}
-
-static int rtl8366s_set_vlan_member_config(struct rtl8366_smi *smi, u32 index,
-                                          const struct rtl8366s_vlanconfig
-                                          *vlanmc)
-{
-       int err;
-       u32 addr;
-       u32 data;
-       u16 *tableaddr;
-
-       if (index >= RTL8366_NUM_VLANS ||
-          vlanmc->vid >= RTL8366_NUM_VIDS ||
-          vlanmc->priority > RTL8366S_PRIORITYMAX ||
-          vlanmc->member > RTL8366_PORT_ALL ||
-          vlanmc->untag > RTL8366_PORT_ALL ||
-          vlanmc->fid > RTL8366S_FIDMAX)
-               return -EINVAL;
-
-       addr = RTL8366S_VLAN_MEMCONF_BASE + (index << 1);
-
-
-       tableaddr = (u16 *)vlanmc;
-       data = *tableaddr;
-
-       err = rtl8366_smi_write_reg(smi, addr, data);
-       if (err)
-               return err;
-
-       addr = RTL8366S_VLAN_MEMCONF_BASE + 1 + (index << 1);
-
-       tableaddr++;
-       data = *tableaddr;
-
-       err = rtl8366_smi_write_reg(smi, addr, data);
-       if (err)
-               return err;
-
-       return 0;
-}
-
-static int rtl8366_get_port_vlan_index(struct rtl8366_smi *smi, int port,
-                                      int *val)
-{
-       int err;
-       u32 addr;
-       u32 data;
-
-       /* bits mapping to port vlan control register of port n */
-       const u16 bits[RTL8366_NUM_PORTS] = { 0x000F, 0x00F0, 0x0F00,
-                                            0xF000, 0x000F, 0x00F0 };
-       /* bits offset to port vlan control register of port n */
-       const u16 bitoffset[RTL8366_NUM_PORTS] = { 0, 4, 8, 12, 0, 4 };
-       /* address offset to port vlan control register of port n */
-       const u16 addroffset[RTL8366_NUM_PORTS] = { 0, 0, 0, 0, 1, 1 };
-
-       if (port >= RTL8366_NUM_PORTS)
-               return -EINVAL;
-
-       addr = RTL8366S_PORT_VLAN_CTRL_BASE + addroffset[port];
-
-       err = rtl8366_smi_read_reg(smi, addr, &data);
-       if (err)
-               return err;
-
-       *val = (data & bits[port]) >> bitoffset[port];
-
-       return 0;
-
-}
-
-static int rtl8366_get_vlan_port_pvid(struct rtl8366_smi *smi, int port,
-                                     int *val)
-{
-       int err;
-       int index;
-       struct rtl8366s_vlanconfig vlanmc;
-
-       err = rtl8366_get_port_vlan_index(smi, port, &index);
-       if (err)
-               return err;
-
-       err = rtl8366s_get_vlan_member_config(smi, index, &vlanmc);
-       if (err)
-               return err;
-
-       *val = vlanmc.vid;
-       return 0;
-}
-
-static int rtl8366_set_port_vlan_index(struct rtl8366_smi *smi, int port,
-                                      int index)
-{
-       int err;
-       u32 addr;
-       u32 data;
-       u32 vlan_data;
-       u32 bits;
-
-       /* bits mapping to port vlan control register of port n */
-       const u16 bitmasks[6] = { 0x000F, 0x00F0, 0x0F00,
-                                0xF000, 0x000F, 0x00F0 };
-       /* bits offset to port vlan control register of port n */
-       const u16 bitOff[6] = { 0, 4, 8, 12, 0, 4 };
-       /* address offset to port vlan control register of port n */
-       const u16 addrOff[6] = { 0, 0, 0, 0, 1, 1 };
-
-       if (port >= RTL8366_NUM_PORTS || index >= RTL8366_NUM_VLANS)
-               return -EINVAL;
-
-       addr = RTL8366S_PORT_VLAN_CTRL_BASE + addrOff[port];
-
-       bits = bitmasks[port];
-
-       data = (index << bitOff[port]) & bits;
-
-       err = rtl8366_smi_read_reg(smi, addr, &vlan_data);
-       if (err)
-               return err;
-
-       vlan_data &= ~(vlan_data & bits);
-       vlan_data |= data;
-
-       err = rtl8366_smi_write_reg(smi, addr, vlan_data);
-       if (err)
-               return err;
-
-       return 0;
-}
-
-static int rtl8366_set_vlan_port_pvid(struct rtl8366_smi *smi, int port,
-                                     int val)
-{
-       int i;
-       struct rtl8366s_vlanconfig vlanmc;
-       struct rtl8366s_vlan4kentry vlan4k;
-
-       if (port >= RTL8366_NUM_PORTS || val >= RTL8366_NUM_VIDS)
-               return -EINVAL;
-
-
-
-       /* Updating the 4K entry; lookup it and change the port member set */
-       rtl8366s_get_vlan_4k_entry(smi, val, &vlan4k);
-       vlan4k.member |= ((1 << port) | RTL8366_PORT_CPU);
-       vlan4k.untag = RTL8366_PORT_ALL_BUT_CPU;
-       rtl8366s_set_vlan_4k_entry(smi, &vlan4k);
-
-       /* For the 16 entries more work needs to be done. First see if such
-          VID is already there and change it */
-       for (i = 0; i < RTL8366_NUM_VLANS; ++i) {
-               rtl8366s_get_vlan_member_config(smi, i, &vlanmc);
-
-               /* Try to find an existing vid and update port member set */
-               if (val == vlanmc.vid) {
-                       vlanmc.member |= ((1 << port) | RTL8366_PORT_CPU);
-                       rtl8366s_set_vlan_member_config(smi, i, &vlanmc);
-
-                       /* Now update PVID register settings */
-                       rtl8366_set_port_vlan_index(smi, port, i);
-
-                       return 0;
-               }
-       }
-
-       /* PVID could not be found from vlan table. Replace unused (one that
-          has no member ports) with new one */
-       for (i = 0; i < RTL8366_NUM_VLANS; ++i) {
-               rtl8366s_get_vlan_member_config(smi, i, &vlanmc);
-
-               /* See if this vlan member configuration is unused. It is
-                  unused if member set contains no ports or CPU port only */
-               if (!vlanmc.member || vlanmc.member == RTL8366_PORT_CPU) {
-                       vlanmc.vid = val;
-                       vlanmc.priority = 0;
-                       vlanmc.untag = RTL8366_PORT_ALL_BUT_CPU;
-                       vlanmc.member = ((1 << port) | RTL8366_PORT_CPU);
-                       vlanmc.fid = 0;
-
-                       rtl8366s_set_vlan_member_config(smi, i, &vlanmc);
-
-                       /* Now update PVID register settings */
-                       rtl8366_set_port_vlan_index(smi, port, i);
-
-                       return 0;
-               }
-       }
-
-       dev_err(&smi->pdev->dev, "All 16 vlan member configurations are in "
-               "use\n");
-       return -EINVAL;
-}
-
-
-static int rtl8366_vlan_set_vlan(struct rtl8366_smi *smi, int enable)
-{
-       u32 data = 0;
-       rtl8366_smi_read_reg(smi, RTL8366_CHIP_GLOBAL_CTRL_REG, &data);
-
-       data &= ~(data & RTL8366_CHIP_CTRL_VLAN);
-       if (enable)
-               data |= RTL8366_CHIP_CTRL_VLAN;
-
-       return rtl8366_smi_write_reg(smi, RTL8366_CHIP_GLOBAL_CTRL_REG, data);
-}
-
-static int rtl8366_vlan_set_4ktable(struct rtl8366_smi *smi, int enable)
-{
-       u32 data = 0;
-       rtl8366_smi_read_reg(smi, RTL8366S_VLAN_TB_CTRL_REG, &data);
-
-       data &= ~(data & 1);
-       if (enable)
-               data |= 1;
-
-       return rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TB_CTRL_REG, data);
-}
-
-static int rtl8366s_reset_vlan(struct rtl8366_smi *smi)
-{
-       struct rtl8366s_vlan4kentry vlan4k;
-       struct rtl8366s_vlanconfig vlanmc;
-       int err;
-       int i;
-
-       /* clear 16 VLAN member configuration */
-       vlanmc.vid = 0;
-       vlanmc.priority = 0;
-       vlanmc.member = 0;
-       vlanmc.untag = 0;
-       vlanmc.fid = 0;
-       for (i = 0; i < RTL8366_NUM_VLANS; i++) {
-               err = rtl8366s_set_vlan_member_config(smi, i, &vlanmc);
-               if (err)
-                       return err;
-       }
-
-       /* Set a default VLAN with vid 1 to 4K table for all ports */
-       vlan4k.vid = 1;
-       vlan4k.member = RTL8366_PORT_ALL;
-       vlan4k.untag = RTL8366_PORT_ALL;
-       vlan4k.fid = 0;
-       err = rtl8366s_set_vlan_4k_entry(smi, &vlan4k);
-       if (err)
-               return err;
-
-       /* Set all ports PVID to default VLAN */
-       for (i = 0; i < RTL8366_NUM_PORTS; i++) {
-               err = rtl8366_set_vlan_port_pvid(smi, i, 0);
-               if (err)
-                       return err;
-       }
-
-       return 0;
-}
-
-#ifdef DEBUG
-static int rtl8366_debugfs_open(struct inode *inode, struct file *file)
-{
-       file->private_data = inode->i_private;
-       return 0;
-}
-
-static ssize_t rtl8366_read_debugfs_mibs(struct file *file,
-                                        char __user *user_buf,
-                                        size_t count, loff_t *ppos)
-{
-       int i, j, len = 0;
-       struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
-       char *buf = smi->buf;
-
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "MIB Counters:\n");
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "Counter"
-                       "                            "
-                       "Port 0 \t\t Port 1 \t\t Port 2 \t\t Port 3 \t\t "
-                       "Port 4\n");
-
-       for (i = 0; i < 33; ++i) {
-
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "%d:%s ",
-                               i, MIBCOUNTERS[i]);
-               for (j = 0; j < RTL8366_NUM_PORTS; ++j) {
-                       unsigned long long counter = 0;
-
-                       if (!rtl8366_get_mib_counter(smi, i, j, &counter))
-                               len += snprintf(buf + len, sizeof(smi->buf) - len,
-                                               "[%llu]", counter);
-                       else
-                               len += snprintf(buf + len, sizeof(smi->buf) - len,
-                                               "[error]");
-
-                       if (j != RTL8366_NUM_PORTS - 1) {
-                               if (counter < 100000)
-                                       len += snprintf(buf + len,
-                                                       sizeof(smi->buf) - len,
-                                                       "\t");
-
-                               len += snprintf(buf + len, sizeof(smi->buf) - len,
-                                               "\t");
-                       }
-               }
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
-       }
-
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
-
-       return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-}
-
-static ssize_t rtl8366_read_debugfs_vlan(struct file *file,
-                                        char __user *user_buf,
-                                        size_t count, loff_t *ppos)
-{
-       int i, j, len = 0;
-       struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
-       char *buf = smi->buf;
-
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "VLAN Member Config:\n");
-       len += snprintf(buf + len, sizeof(smi->buf) - len,
-                       "\t id \t vid \t prio \t member \t untag  \t fid "
-                       "\tports\n");
-
-       for (i = 0; i < RTL8366_NUM_VLANS; ++i) {
-               struct rtl8366s_vlanconfig vlanmc;
-
-               rtl8366s_get_vlan_member_config(smi, i, &vlanmc);
-
-               len += snprintf(buf + len, sizeof(smi->buf) - len,
-                               "\t[%d] \t %d \t %d \t 0x%04x \t 0x%04x \t %d "
-                               "\t", i, vlanmc.vid, vlanmc.priority,
-                               vlanmc.member, vlanmc.untag, vlanmc.fid);
-
-               for (j = 0; j < RTL8366_NUM_PORTS; ++j) {
-                       int index = 0;
-                       if (!rtl8366_get_port_vlan_index(smi, j, &index)) {
-                               if (index == i)
-                                       len += snprintf(buf + len,
-                                                       sizeof(smi->buf) - len,
-                                                       "%d", j);
-                       }
-               }
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
-       }
-
-       return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-}
-
-static ssize_t rtl8366_read_debugfs_reg(struct file *file,
-                                       char __user *user_buf,
-                                       size_t count, loff_t *ppos)
-{
-       u32 t, reg = g_dbg_reg;
-       int err, len = 0;
-       struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
-       char *buf = smi->buf;
-
-       memset(buf, '\0', sizeof(smi->buf));
-
-       err = rtl8366_smi_read_reg(smi, reg, &t);
+       err = gpio_request(smi->gpio_sda, dev_name(smi->parent));
        if (err) {
-               len += snprintf(buf, sizeof(smi->buf),
-                               "Read failed (reg: 0x%04x)\n", reg);
-               return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-       }
-
-       len += snprintf(buf, sizeof(smi->buf), "reg = 0x%04x, val = 0x%04x\n",
-                       reg, t);
-
-       return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-}
-
-static ssize_t rtl8366_write_debugfs_reg(struct file *file,
-                                        const char __user *user_buf,
-                                        size_t count, loff_t *ppos)
-{
-       unsigned long data;
-       u32 reg = g_dbg_reg;
-       int err;
-       size_t len;
-       struct rtl8366_smi *smi = (struct rtl8366_smi *)file->private_data;
-       char *buf = smi->buf;
-
-       len = min(count, sizeof(smi->buf) - 1);
-       if (copy_from_user(buf, user_buf, len)) {
-               dev_err(&smi->pdev->dev, "copy from user failed\n");
-               return -EFAULT;
-       }
-
-       buf[len] = '\0';
-       if (len > 0 && buf[len - 1] == '\n')
-               buf[len - 1] = '\0';
-
-
-       if (strict_strtoul(buf, 16, &data)) {
-               dev_err(&smi->pdev->dev, "Invalid reg value %s\n", buf);
-       } else {
-               err = rtl8366_smi_write_reg(smi, reg, data);
-               if (err) {
-                       dev_err(&smi->pdev->dev,
-                               "writing reg 0x%04x val 0x%04lx failed\n",
-                               reg, data);
-               }
-       }
-
-       return count;
-}
-
-static const struct file_operations fops_rtl8366_regs = {
-       .read = rtl8366_read_debugfs_reg,
-       .write = rtl8366_write_debugfs_reg,
-       .open = rtl8366_debugfs_open,
-       .owner = THIS_MODULE
-};
-
-static const struct file_operations fops_rtl8366_vlan = {
-       .read = rtl8366_read_debugfs_vlan,
-       .open = rtl8366_debugfs_open,
-       .owner = THIS_MODULE
-};
-
-static const struct file_operations fops_rtl8366_mibs = {
-       .read = rtl8366_read_debugfs_mibs,
-       .open = rtl8366_debugfs_open,
-       .owner = THIS_MODULE
-};
-
-static void rtl8366_debugfs_init(struct rtl8366_smi *smi)
-{
-       struct dentry *node;
-       struct dentry *root;
-
-       if (!smi->debugfs_root)
-               smi->debugfs_root = debugfs_create_dir("rtl8366s", NULL);
-
-       if (!smi->debugfs_root) {
-               dev_err(&smi->pdev->dev, "Unable to create debugfs dir\n");
-               return;
-       }
-       root = smi->debugfs_root;
-
-       node = debugfs_create_x16("reg", S_IRUGO | S_IWUSR, root, &g_dbg_reg);
-       if (!node) {
-               dev_err(&smi->pdev->dev, "Creating debugfs file reg failed\n");
-               return;
-       }
-
-       node = debugfs_create_file("val", S_IRUGO | S_IWUSR, root, smi,
-                                  &fops_rtl8366_regs);
-       if (!node) {
-               dev_err(&smi->pdev->dev, "Creating debugfs file val failed\n");
-               return;
-       }
-
-       node = debugfs_create_file("vlan", S_IRUSR, root, smi,
-                                  &fops_rtl8366_vlan);
-       if (!node) {
-               dev_err(&smi->pdev->dev, "Creating debugfs file vlan "
-                       "failed\n");
-               return;
-       }
-
-       node = debugfs_create_file("mibs", S_IRUSR, root, smi,
-                                  &fops_rtl8366_mibs);
-       if (!node) {
-               dev_err(&smi->pdev->dev, "Creating debugfs file mibs "
-                       "xfailed\n");
-               return;
-       }
-}
-
-static void rtl8366_debugfs_remove(struct rtl8366_smi *smi)
-{
-       if (smi->debugfs_root) {
-               debugfs_remove_recursive(smi->debugfs_root);
-               smi->debugfs_root = NULL;
-       }
-}
-
-#else
-static inline void rtl8366_debugfs_init(struct rtl8366_smi *smi) {}
-static inline void rtl8366_debugfs_remove(struct rtl8366_smi *smi) {}
-#endif
-
-static int rtl8366_global_reset_mibs(struct switch_dev *dev,
-                                    const struct switch_attr *attr,
-                                    struct switch_val *val)
-{
-       u32 data = 0;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-
-       if (val->value.i == 1) {
-               rtl8366_smi_read_reg(smi, RTL8366S_MIB_CTRL_REG, &data);
-               data |= (1 << 2);
-               rtl8366_smi_write_reg(smi, RTL8366S_MIB_CTRL_REG, data);
-       }
-
-       return 0;
-}
-
-static int rtl8366_get_vlan(struct switch_dev *dev,
-                           const struct switch_attr *attr,
-                           struct switch_val *val)
-{
-       u32 data;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-
-       if (attr->ofs == 1) {
-               rtl8366_smi_read_reg(smi, RTL8366_CHIP_GLOBAL_CTRL_REG, &data);
-
-               if (data & RTL8366_CHIP_CTRL_VLAN)
-                       val->value.i = 1;
-               else
-                       val->value.i = 0;
-       } else if (attr->ofs == 2) {
-               rtl8366_smi_read_reg(smi, RTL8366S_VLAN_TB_CTRL_REG, &data);
-
-               if (data & 0x0001)
-                       val->value.i = 1;
-               else
-                       val->value.i = 0;
-       }
-
-       return 0;
-}
-
-static int rtl8366_global_get_blinkrate(struct switch_dev *dev,
-                                       const struct switch_attr *attr,
-                                       struct switch_val *val)
-{
-       u32 data;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       rtl8366_smi_read_reg(smi, RTL8366_LED_BLINKRATE_REG, &data);
-
-       val->value.i = (data & (RTL8366_LED_BLINKRATE_MASK));
-
-       return 0;
-}
-
-static int rtl8366_global_set_blinkrate(struct switch_dev *dev,
-                                       const struct switch_attr *attr,
-                                       struct switch_val *val)
-{
-       u32 data;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-
-       if (val->value.i >= 6)
-               return -EINVAL;
-
-       rtl8366_smi_read_reg(smi, RTL8366_LED_BLINKRATE_REG, &data);
-
-       data &= ~(data & RTL8366_LED_BLINKRATE_MASK);
-       data |= val->value.i;
-
-       rtl8366_smi_write_reg(smi, RTL8366_LED_BLINKRATE_REG, data);
-
-       return 0;
-}
-
-static int rtl8366_set_vlan(struct switch_dev *dev,
-                           const struct switch_attr *attr,
-                           struct switch_val *val)
-{
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-
-       if (attr->ofs == 1)
-               return rtl8366_vlan_set_vlan(smi, val->value.i);
-       else
-               return rtl8366_vlan_set_4ktable(smi, val->value.i);
-}
-
-static int rtl8366_attr_get_port_link(struct switch_dev *dev,
-                                     const struct switch_attr *attr,
-                                     struct switch_val *val)
-{
-       u32 len = 0, data = 0;
-       int speed, duplex, link, txpause, rxpause, nway;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       char *buf = smi->buf;
-
-       if (val->port_vlan >= RTL8366_NUM_PORTS)
-               return -EINVAL;
-
-       memset(buf, '\0', sizeof(smi->buf));
-       rtl8366_smi_read_reg(smi, RTL8366S_PORT_LINK_STATUS_BASE +
-                            (val->port_vlan >> 1),
-                            &data);
-
-       if (val->port_vlan & 0x1)
-               data = data >> 8;
-
-       speed = (data & RTL8366S_PORT_STATUS_SPEED_MASK);
-       duplex = (data & RTL8366S_PORT_STATUS_DUPLEX_MASK) >> 2;
-       link = (data & RTL8366S_PORT_STATUS_LINK_MASK) >> 4;
-       txpause = (data & RTL8366S_PORT_STATUS_TXPAUSE_MASK) >> 5;
-       rxpause = (data & RTL8366S_PORT_STATUS_RXPAUSE_MASK) >> 6;
-       nway = (data & RTL8366S_PORT_STATUS_AN_MASK) >> 7;
-
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "Port %d: ",
-                       val->port_vlan);
-
-       if (link)
-               len += snprintf(buf + len, sizeof(smi->buf) - len,
-                               "Link UP, Speed: ");
-       else
-               len += snprintf(buf + len, sizeof(smi->buf) - len,
-                               "Link DOWN, Speed: ");
-
-       if (speed == 0)
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "10Base-TX ");
-       else if (speed == 1)
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "100Base-TX ");
-       else if (speed == 2)
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "1000Base-TX ");
-
-       if (duplex)
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "Full-Duplex, ");
-       else
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "Half-Duplex, ");
-
-       if (txpause)
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "TX-Pause ");
-       if (rxpause)
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "RX-Pause ");
-       if (nway)
-               len += snprintf(buf + len, sizeof(smi->buf) - len, "nway ");
-
-       val->value.s = buf;
-       val->len = len;
-
-       return 0;
-}
-
-static int rtl8366_attr_get_vlan_info(struct switch_dev *dev,
-                                     const struct switch_attr *attr,
-                                     struct switch_val *val)
-{
-       int i;
-       u32 len = 0;
-       struct rtl8366s_vlanconfig vlanmc;
-       struct rtl8366s_vlan4kentry vlan4k;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       char *buf = smi->buf;
-
-       if (val->port_vlan >= RTL8366_NUM_PORTS)
-               return -EINVAL;
-
-       memset(buf, '\0', sizeof(smi->buf));
-
-       rtl8366s_get_vlan_member_config(smi, val->port_vlan, &vlanmc);
-       rtl8366s_get_vlan_4k_entry(smi, vlanmc.vid, &vlan4k);
-
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "VLAN %d: Ports: ",
-                       val->port_vlan);
-
-       for (i = 0; i < RTL8366_NUM_PORTS; ++i) {
-               int index = 0;
-               if (!rtl8366_get_port_vlan_index(smi, i, &index) &&
-                   index == val->port_vlan)
-                       len += snprintf(buf + len, sizeof(smi->buf) - len, "%d", i);
-       }
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "\n");
-
-       len += snprintf(buf + len, sizeof(smi->buf) - len,
-                       "\t\t vid \t prio \t member \t untag \t fid\n");
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "\tMC:\t");
-       len += snprintf(buf + len, sizeof(smi->buf) - len,
-                       "%d \t %d \t 0x%04x \t 0x%04x \t %d\n",
-                       vlanmc.vid, vlanmc.priority, vlanmc.member,
-                       vlanmc.untag, vlanmc.fid);
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "\t4K:\t");
-       len += snprintf(buf + len, sizeof(smi->buf) - len,
-                       "%d \t  \t 0x%04x \t 0x%04x \t %d",
-                       vlan4k.vid, vlan4k.member, vlan4k.untag, vlan4k.fid);
-
-       val->value.s = buf;
-       val->len = len;
-
-       return 0;
-}
-
-static int rtl8366_set_port_led(struct switch_dev *dev,
-                               const struct switch_attr *attr,
-                               struct switch_val *val)
-{
-       u32 data = 0;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       if (val->port_vlan >= RTL8366_NUM_PORTS ||
-           (1 << val->port_vlan) == RTL8366_PORT_UNKNOWN)
-               return -EINVAL;
-
-       if (val->port_vlan == RTL8366_PORT_NUM_CPU) {
-               rtl8366_smi_read_reg(smi, RTL8366_LED_BLINKRATE_REG, &data);
-               data = (data & (~(0xF << 4))) | (val->value.i << 4);
-               rtl8366_smi_write_reg(smi, RTL8366_LED_BLINKRATE_REG, data);
-       } else {
-               rtl8366_smi_read_reg(smi, RTL8366_LED_CTRL_REG, &data);
-               data = (data & (~(0xF << (val->port_vlan * 4)))) |
-                       (val->value.i << (val->port_vlan * 4));
-               rtl8366_smi_write_reg(smi, RTL8366_LED_CTRL_REG, data);
-       }
-
-       return 0;
-}
-
-static int rtl8366_get_port_led(struct switch_dev *dev,
-                               const struct switch_attr *attr,
-                               struct switch_val *val)
-{
-       u32 data = 0;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       if (val->port_vlan >= RTL8366_NUM_LEDGROUPS)
-               return -EINVAL;
-
-       rtl8366_smi_read_reg(smi, RTL8366_LED_CTRL_REG, &data);
-       val->value.i = (data >> (val->port_vlan * 4)) & 0x000F;
-
-       return 0;
-}
-
-static int rtl8366_reset_port_mibs(struct switch_dev *dev,
-                                  const struct switch_attr *attr,
-                                  struct switch_val *val)
-{
-       u32 data = 0;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       if (val->port_vlan >= RTL8366_NUM_PORTS)
-               return -EINVAL;
-
-       rtl8366_smi_read_reg(smi, RTL8366S_MIB_CTRL_REG, &data);
-       data |= (1 << (val->port_vlan + 3));
-       rtl8366_smi_write_reg(smi, RTL8366S_MIB_CTRL_REG, data);
-
-       return 0;
-}
-
-static int rtl8366_get_port_mib(struct switch_dev *dev,
-                               const struct switch_attr *attr,
-                               struct switch_val *val)
-{
-       int i, len = 0;
-       unsigned long long counter = 0;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       char *buf = smi->buf;
-
-       if (val->port_vlan >= RTL8366_NUM_PORTS)
-               return -EINVAL;
-
-       len += snprintf(buf + len, sizeof(smi->buf) - len, "Port %d MIB counters\n",
-                       val->port_vlan);
-       for (i = 0; i < RTL8366S_MIB_COUNT; ++i) {
-
-               len += snprintf(buf + len, sizeof(smi->buf) - len,
-                               "%d:%s\t", i, MIBCOUNTERS[i]);
-               if (!rtl8366_get_mib_counter(smi, i, val->port_vlan, &counter))
-                       len += snprintf(buf + len, sizeof(smi->buf) - len,
-                                       "[%llu]\n", counter);
-               else
-                       len += snprintf(buf + len, sizeof(smi->buf) - len,
-                                       "[error]\n");
-       }
-
-       val->value.s = buf;
-       val->len = len;
-       return 0;
-}
-
-static int rtl8366_get_ports(struct switch_dev *dev,
-                            struct switch_val *val)
-{
-       struct rtl8366s_vlanconfig vlanmc;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       struct switch_port *port;
-       int i;
-
-       if (val->port_vlan >= RTL8366_NUM_VLANS)
-               return -EINVAL;
-
-       rtl8366s_get_vlan_member_config(smi, val->port_vlan, &vlanmc);
-
-       port = &val->value.ports[0];
-       val->len = 0;
-       for (i = 0; i < RTL8366_NUM_PORTS; i++) {
-               if (!(vlanmc.member & BIT(i)))
-                       continue;
-
-               port->id = i;
-               port->flags = (vlanmc.untag & BIT(i)) ?
-                                       0 : BIT(SWITCH_PORT_FLAG_TAGGED);
-               val->len++;
-               port++;
-       }
-       return 0;
-}
-
-static int rtl8366_set_ports(struct switch_dev *dev,
-                            struct switch_val *val)
-{
-       struct rtl8366s_vlanconfig vlanmc;
-       struct rtl8366s_vlan4kentry vlan4k;
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       struct switch_port *port;
-       int i;
-
-       if (val->port_vlan >= RTL8366_NUM_VLANS)
-               return -EINVAL;
-
-       rtl8366s_get_vlan_member_config(smi, val->port_vlan, &vlanmc);
-       rtl8366s_get_vlan_4k_entry(smi, vlanmc.vid, &vlan4k);
-
-       vlanmc.untag = 0;
-       vlanmc.member = 0;
-
-       port = &val->value.ports[0];
-       for (i = 0; i < val->len; i++, port++) {
-               vlanmc.member |= BIT(port->id);
-
-               if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED)))
-                       vlanmc.untag |= BIT(port->id);
-       }
-
-       vlan4k.member = vlanmc.member;
-       vlan4k.untag = vlanmc.untag;
-
-       rtl8366s_set_vlan_member_config(smi, val->port_vlan, &vlanmc);
-       rtl8366s_set_vlan_4k_entry(smi, &vlan4k);
-       return 0;
-}
-
-static int rtl8366_get_port_pvid(struct switch_dev *dev, int port, int *val)
-{
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       return rtl8366_get_vlan_port_pvid(smi, port, val);
-}
-
-static int rtl8366_set_port_pvid(struct switch_dev *dev, int port, int val)
-{
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       return rtl8366_set_vlan_port_pvid(smi, port, val);
-}
-
-static int rtl8366_reset_switch(struct switch_dev *dev)
-{
-       struct rtl8366_smi *smi = sw_to_rtl8366(dev);
-       int timeout = 10;
-       u32 data;
-
-       rtl8366_smi_write_reg(smi, RTL8366_RESET_CTRL_REG,
-                             RTL8366_CHIP_CTRL_RESET_HW);
-       do {
-               msleep(1);
-               if (rtl8366_smi_read_reg(smi, RTL8366_RESET_CTRL_REG, &data))
-                       return -EIO;
-
-               if (!(data & RTL8366_CHIP_CTRL_RESET_HW))
-                       break;
-       } while (--timeout);
-
-       if (!timeout) {
-               printk("Timeout waiting for the switch to reset\n");
-               return -EIO;
-       }
-
-       return rtl8366s_reset_vlan(smi);
-}
-
-static struct switch_attr rtl8366_globals[] = {
-       {
-               .type = SWITCH_TYPE_INT,
-               .name = "enable_vlan",
-               .description = "Enable VLAN mode",
-               .set = rtl8366_set_vlan,
-               .get = rtl8366_get_vlan,
-               .max = 1,
-               .ofs = 1
-       },
-       {
-               .type = SWITCH_TYPE_INT,
-               .name = "enable_vlan4k",
-               .description = "Enable VLAN 4K mode",
-               .set = rtl8366_set_vlan,
-               .get = rtl8366_get_vlan,
-               .max = 1,
-               .ofs = 2
-       },
-       {
-               .type = SWITCH_TYPE_INT,
-               .name = "reset_mibs",
-               .description = "Reset all MIB counters",
-               .set = rtl8366_global_reset_mibs,
-               .get = NULL,
-               .max = 1
-       },
-       {
-               .type = SWITCH_TYPE_INT,
-               .name = "blinkrate",
-               .description = "Get/Set LED blinking rate (0 = 43ms, 1 = 84ms,"
-               " 2 = 120ms, 3 = 170ms, 4 = 340ms, 5 = 670ms)",
-               .set = rtl8366_global_set_blinkrate,
-               .get = rtl8366_global_get_blinkrate,
-               .max = 5
-       },
-};
-
-static struct switch_attr rtl8366_port[] = {
-       {
-               .type = SWITCH_TYPE_STRING,
-               .name = "link",
-               .description = "Get port link information",
-               .max = 1,
-               .set = NULL,
-               .get = rtl8366_attr_get_port_link
-       },
-       {
-               .type = SWITCH_TYPE_INT,
-               .name = "reset_mib",
-               .description = "Reset single port MIB counters",
-               .max = 1,
-               .set = rtl8366_reset_port_mibs,
-               .get = NULL
-       },
-       {
-               .type = SWITCH_TYPE_STRING,
-               .name = "mib",
-               .description = "Get MIB counters for port",
-               .max = 33,
-               .set = NULL,
-               .get = rtl8366_get_port_mib
-       },
-       {
-               .type = SWITCH_TYPE_INT,
-               .name = "led",
-               .description = "Get/Set port group (0 - 3) led mode (0 - 15)",
-               .max = 15,
-               .set = rtl8366_set_port_led,
-               .get = rtl8366_get_port_led
-       },
-};
-
-static struct switch_attr rtl8366_vlan[] = {
-       {
-               .type = SWITCH_TYPE_STRING,
-               .name = "info",
-               .description = "Get vlan information",
-               .max = 1,
-               .set = NULL,
-               .get = rtl8366_attr_get_vlan_info
-       },
-};
-
-
-/* template */
-static struct switch_dev rtldev = {
-       .name = "RTL8366S",
-       .cpu_port = RTL8366_PORT_NUM_CPU,
-       .ports = RTL8366_NUM_PORTS,
-       .vlans = RTL8366_NUM_VLANS,
-       .attr_global = {
-               .attr = rtl8366_globals,
-               .n_attr = ARRAY_SIZE(rtl8366_globals),
-       },
-       .attr_port = {
-               .attr = rtl8366_port,
-               .n_attr = ARRAY_SIZE(rtl8366_port),
-       },
-       .attr_vlan = {
-               .attr = rtl8366_vlan,
-               .n_attr = ARRAY_SIZE(rtl8366_vlan),
-       },
-
-       .get_vlan_ports = rtl8366_get_ports,
-       .set_vlan_ports = rtl8366_set_ports,
-       .get_port_pvid = rtl8366_get_port_pvid,
-       .set_port_pvid = rtl8366_set_port_pvid,
-       .reset_switch = rtl8366_reset_switch,
-};
-
-static int rtl8366_smi_switch_init(struct rtl8366_smi *smi)
-{
-       struct switch_dev *dev = &smi->dev;
-       int err;
-
-       memcpy(dev, &rtldev, sizeof(struct switch_dev));
-       dev->priv = smi;
-       dev->devname = dev_name(&smi->pdev->dev);
-
-       err = register_switch(dev, NULL);
-       if (err)
-               dev_err(&smi->pdev->dev, "switch registration failed\n");
-
-       return err;
-}
-
-static void rtl8366_smi_switch_cleanup(struct rtl8366_smi *smi)
-{
-       unregister_switch(&smi->dev);
-}
-
-static int rtl8366_smi_mii_read(struct mii_bus *bus, int addr, int reg)
-{
-       struct rtl8366_smi *smi = bus->priv;
-       u32 val = 0;
-       int err;
-
-       err = rtl8366_smi_read_phy_reg(smi, addr, 0, reg, &val);
-       if (err)
-               return 0xffff;
-
-       return val;
-}
-
-static int rtl8366_smi_mii_write(struct mii_bus *bus, int addr, int reg,
-                                    u16 val)
-{
-       struct rtl8366_smi *smi = bus->priv;
-       u32 t;
-       int err;
-
-       err = rtl8366_smi_write_phy_reg(smi, addr, 0, reg, val);
-       /* flush write */
-       (void) rtl8366_smi_read_phy_reg(smi, addr, 0, reg, &t);
-
-       return err;
-}
-
-static int rtl8366_smi_mii_init(struct rtl8366_smi *smi)
-{
-       int ret;
-       int i;
-
-       smi->mii_bus = mdiobus_alloc();
-       if (smi->mii_bus == NULL) {
-               ret = -ENOMEM;
-               goto err;
-       }
-
-       spin_lock_init(&smi->lock);
-       smi->mii_bus->priv = (void *) smi;
-       smi->mii_bus->name = "rtl8366-smi";
-       smi->mii_bus->read = rtl8366_smi_mii_read;
-       smi->mii_bus->write = rtl8366_smi_mii_write;
-       snprintf(smi->mii_bus->id, MII_BUS_ID_SIZE, "%s",
-                       dev_name(&smi->pdev->dev));
-       smi->mii_bus->parent = &smi->pdev->dev;
-       smi->mii_bus->phy_mask = ~(0x1f);
-       smi->mii_bus->irq = smi->mii_irq;
-       for (i = 0; i < PHY_MAX_ADDR; i++)
-               smi->mii_irq[i] = PHY_POLL;
-
-       ret = mdiobus_register(smi->mii_bus);
-       if (ret)
-               goto err_free;
-
-       return 0;
-
- err_free:
-       mdiobus_free(smi->mii_bus);
- err:
-       return ret;
-}
-
-static void rtl8366_smi_mii_cleanup(struct rtl8366_smi *smi)
-{
-       mdiobus_unregister(smi->mii_bus);
-       mdiobus_free(smi->mii_bus);
-}
-
-static int rtl8366_smi_mii_bus_match(struct mii_bus *bus)
-{
-       return (bus->read == rtl8366_smi_mii_read &&
-               bus->write == rtl8366_smi_mii_write);
-}
-
-static int rtl8366_smi_setup(struct rtl8366_smi *smi)
-{
-       u32 chip_id = 0;
-       u32 chip_ver = 0;
-       int ret;
-
-       ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_ID_REG, &chip_id);
-       if (ret) {
-               dev_err(&smi->pdev->dev, "unable to read chip id\n");
-               return ret;
-       }
-
-       switch (chip_id) {
-       case RTL8366S_CHIP_ID_8366:
-               break;
-       default:
-               dev_err(&smi->pdev->dev, "unknown chip id (%04x)\n", chip_id);
-               return -ENODEV;
-       }
-
-       ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_VERSION_CTRL_REG,
-                                  &chip_ver);
-       if (ret) {
-               dev_err(&smi->pdev->dev, "unable to read chip version\n");
-               return ret;
-       }
-
-       dev_info(&smi->pdev->dev, "RTL%04x ver. %u chip found\n",
-                chip_id, chip_ver & RTL8366S_CHIP_VERSION_MASK);
-
-       rtl8366_debugfs_init(smi);
-
-       return 0;
-}
-
-static int __init rtl8366_smi_probe(struct platform_device *pdev)
-{
-       static int rtl8366_smi_version_printed;
-       struct rtl8366_smi_platform_data *pdata;
-       struct rtl8366_smi *smi;
-       int err;
-
-       if (!rtl8366_smi_version_printed++)
-               printk(KERN_NOTICE RTL8366_SMI_DRIVER_DESC
-                      " version " RTL8366_SMI_DRIVER_VER"\n");
-
-       pdata = pdev->dev.platform_data;
-       if (!pdata) {
-               dev_err(&pdev->dev, "no platform data specified\n");
-               err = -EINVAL;
+               dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
+                       smi->gpio_sda, err);
                goto err_out;
        }
 
-       smi = kzalloc(sizeof(struct rtl8366_smi), GFP_KERNEL);
-       if (!smi) {
-               dev_err(&pdev->dev, "no memory for private data\n");
-               err = -ENOMEM;
-               goto err_out;
-       }
-
-       err = gpio_request(pdata->gpio_sda, dev_name(&pdev->dev));
+       err = gpio_request(smi->gpio_sck, dev_name(smi->parent));
        if (err) {
-               dev_err(&pdev->dev, "gpio_request failed for %u, err=%d\n",
-                       pdata->gpio_sda, err);
-               goto err_free_smi;
-       }
-
-       err = gpio_request(pdata->gpio_sck, dev_name(&pdev->dev));
-       if (err) {
-               dev_err(&pdev->dev, "gpio_request failed for %u, err=%d\n",
-                       pdata->gpio_sck, err);
+               dev_err(smi->parent, "gpio_request failed for %u, err=%d\n",
+                       smi->gpio_sck, err);
                goto err_free_sda;
        }
 
-       smi->pdev = pdev;
-       smi->pdata = pdata;
        spin_lock_init(&smi->lock);
 
-       platform_set_drvdata(pdev, smi);
-
-       dev_info(&pdev->dev, "using GPIO pins %u (SDA) and %u (SCK)\n",
-                pdata->gpio_sda, pdata->gpio_sck);
-
-       err = rtl8366_smi_setup(smi);
-       if (err)
-               goto err_clear_drvdata;
-
-       err = rtl8366_smi_mii_init(smi);
-       if (err)
-               goto err_clear_drvdata;
-
-       err = rtl8366_smi_switch_init(smi);
-       if (err)
-               goto err_mii_cleanup;
+       dev_info(smi->parent, "using GPIO pins %u (SDA) and %u (SCK)\n",
+                smi->gpio_sda, smi->gpio_sck);
 
        return 0;
 
- err_mii_cleanup:
-       rtl8366_smi_mii_cleanup(smi);
- err_clear_drvdata:
-       platform_set_drvdata(pdev, NULL);
-       gpio_free(pdata->gpio_sck);
  err_free_sda:
-       gpio_free(pdata->gpio_sda);
- err_free_smi:
-       kfree(smi);
+       gpio_free(smi->gpio_sda);
  err_out:
        return err;
 }
+EXPORT_SYMBOL_GPL(rtl8366_smi_init);
 
-int rtl8366_phy_config_init(struct phy_device *phydev)
-{
-       if (!rtl8366_smi_mii_bus_match(phydev->bus))
-               return -EINVAL;
-
-       return 0;
-}
-
-int rtl8366_phy_config_aneg(struct phy_device *phydev)
-{
-       return 0;
-}
-
-static struct phy_driver rtl8366_smi_phy_driver = {
-       .phy_id         = 0x001cc960,
-       .name           = "Realtek RTL8366",
-       .phy_id_mask    = 0x1ffffff0,
-       .features       = PHY_GBIT_FEATURES,
-       .config_aneg    = rtl8366_phy_config_aneg,
-       .config_init    = rtl8366_phy_config_init,
-       .read_status    = genphy_read_status,
-       .driver         = {
-               .owner = THIS_MODULE,
-       },
-};
-
-static int __devexit rtl8366_smi_remove(struct platform_device *pdev)
-{
-       struct rtl8366_smi *smi = platform_get_drvdata(pdev);
-
-       if (smi) {
-               struct rtl8366_smi_platform_data *pdata;
-
-               pdata = pdev->dev.platform_data;
-
-               rtl8366_smi_switch_cleanup(smi);
-               rtl8366_debugfs_remove(smi);
-               rtl8366_smi_mii_cleanup(smi);
-               platform_set_drvdata(pdev, NULL);
-               gpio_free(pdata->gpio_sck);
-               gpio_free(pdata->gpio_sda);
-               kfree(smi);
-       }
-
-       return 0;
-}
-
-static struct platform_driver rtl8366_smi_driver = {
-       .driver = {
-               .name           = RTL8366_SMI_DRIVER_NAME,
-               .owner          = THIS_MODULE,
-       },
-       .probe          = rtl8366_smi_probe,
-       .remove         = __devexit_p(rtl8366_smi_remove),
-};
-
-static int __init rtl8366_smi_init(void)
-{
-       int ret;
-       ret = platform_driver_register(&rtl8366_smi_driver);
-       if (ret)
-               return ret;
-
-       ret = phy_driver_register(&rtl8366_smi_phy_driver);
-       if (ret)
-               goto err_platform_unregister;
-
-       return 0;
-
- err_platform_unregister:
-       platform_driver_unregister(&rtl8366_smi_driver);
-       return ret;
-}
-module_init(rtl8366_smi_init);
-
-static void __exit rtl8366_smi_exit(void)
+void rtl8366_smi_cleanup(struct rtl8366_smi *smi)
 {
-       phy_driver_unregister(&rtl8366_smi_phy_driver);
-       platform_driver_unregister(&rtl8366_smi_driver);
+       gpio_free(smi->gpio_sck);
+       gpio_free(smi->gpio_sda);
 }
-module_exit(rtl8366_smi_exit);
+EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
 
-MODULE_DESCRIPTION(RTL8366_SMI_DRIVER_DESC);
-MODULE_VERSION(RTL8366_SMI_DRIVER_VER);
+MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
-MODULE_AUTHOR("Antti Seppälä <a.seppala@gmail.com>");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" RTL8366_SMI_DRIVER_NAME);
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