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openwrt-xburst/target/linux/generic/files/drivers/net/phy/rtl8366rb.c
juhosg e2bae31171 generic: rtl8366: add rtl8366_smi_write_reg_noack helper 
After issuing a soft reset on the RT8366{S,RB}
switch, waiting for the last acknowlegement fails
in rtl8366_smi_write_reg. Add a _noack version of
the function and use that for issuing a soft reset.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29844 3c298f89-4303-0410-b956-a3cf2f4a3e73
2012-01-21 22:44:09 +00:00

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/*
* Platform driver for the Realtek RTL8366RB ethernet switch
*
* 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>
*
* 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
* by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/rtl8366.h>
#include "rtl8366_smi.h"
#define RTL8366RB_DRIVER_DESC "Realtek RTL8366RB ethernet switch driver"
#define RTL8366RB_DRIVER_VER "0.2.3"
#define RTL8366RB_PHY_NO_MAX 4
#define RTL8366RB_PHY_PAGE_MAX 7
#define RTL8366RB_PHY_ADDR_MAX 31
/* Switch Global Configuration register */
#define RTL8366RB_SGCR 0x0000
#define RTL8366RB_SGCR_EN_BC_STORM_CTRL BIT(0)
#define RTL8366RB_SGCR_MAX_LENGTH(_x) (_x << 4)
#define RTL8366RB_SGCR_MAX_LENGTH_MASK RTL8366RB_SGCR_MAX_LENGTH(0x3)
#define RTL8366RB_SGCR_MAX_LENGTH_1522 RTL8366RB_SGCR_MAX_LENGTH(0x0)
#define RTL8366RB_SGCR_MAX_LENGTH_1536 RTL8366RB_SGCR_MAX_LENGTH(0x1)
#define RTL8366RB_SGCR_MAX_LENGTH_1552 RTL8366RB_SGCR_MAX_LENGTH(0x2)
#define RTL8366RB_SGCR_MAX_LENGTH_9216 RTL8366RB_SGCR_MAX_LENGTH(0x3)
#define RTL8366RB_SGCR_EN_VLAN BIT(13)
#define RTL8366RB_SGCR_EN_VLAN_4KTB BIT(14)
/* Port Enable Control register */
#define RTL8366RB_PECR 0x0001
/* Switch Security Control registers */
#define RTL8366RB_SSCR0 0x0002
#define RTL8366RB_SSCR1 0x0003
#define RTL8366RB_SSCR2 0x0004
#define RTL8366RB_SSCR2_DROP_UNKNOWN_DA BIT(0)
#define RTL8366RB_RESET_CTRL_REG 0x0100
#define RTL8366RB_CHIP_CTRL_RESET_HW 1
#define RTL8366RB_CHIP_CTRL_RESET_SW (1 << 1)
#define RTL8366RB_CHIP_VERSION_CTRL_REG 0x050A
#define RTL8366RB_CHIP_VERSION_MASK 0xf
#define RTL8366RB_CHIP_ID_REG 0x0509
#define RTL8366RB_CHIP_ID_8366 0x5937
/* PHY registers control */
#define RTL8366RB_PHY_ACCESS_CTRL_REG 0x8000
#define RTL8366RB_PHY_ACCESS_DATA_REG 0x8002
#define RTL8366RB_PHY_CTRL_READ 1
#define RTL8366RB_PHY_CTRL_WRITE 0
#define RTL8366RB_PHY_REG_MASK 0x1f
#define RTL8366RB_PHY_PAGE_OFFSET 5
#define RTL8366RB_PHY_PAGE_MASK (0xf << 5)
#define RTL8366RB_PHY_NO_OFFSET 9
#define RTL8366RB_PHY_NO_MASK (0x1f << 9)
#define RTL8366RB_VLAN_INGRESS_CTRL2_REG 0x037f
/* LED control registers */
#define RTL8366RB_LED_BLINKRATE_REG 0x0430
#define RTL8366RB_LED_BLINKRATE_BIT 0
#define RTL8366RB_LED_BLINKRATE_MASK 0x0007
#define RTL8366RB_LED_CTRL_REG 0x0431
#define RTL8366RB_LED_0_1_CTRL_REG 0x0432
#define RTL8366RB_LED_2_3_CTRL_REG 0x0433
#define RTL8366RB_MIB_COUNT 33
#define RTL8366RB_GLOBAL_MIB_COUNT 1
#define RTL8366RB_MIB_COUNTER_PORT_OFFSET 0x0050
#define RTL8366RB_MIB_COUNTER_BASE 0x1000
#define RTL8366RB_MIB_CTRL_REG 0x13F0
#define RTL8366RB_MIB_CTRL_USER_MASK 0x0FFC
#define RTL8366RB_MIB_CTRL_BUSY_MASK BIT(0)
#define RTL8366RB_MIB_CTRL_RESET_MASK BIT(1)
#define RTL8366RB_MIB_CTRL_PORT_RESET(_p) BIT(2 + (_p))
#define RTL8366RB_MIB_CTRL_GLOBAL_RESET BIT(11)
#define RTL8366RB_PORT_VLAN_CTRL_BASE 0x0063
#define RTL8366RB_PORT_VLAN_CTRL_REG(_p) \
(RTL8366RB_PORT_VLAN_CTRL_BASE + (_p) / 4)
#define RTL8366RB_PORT_VLAN_CTRL_MASK 0xf
#define RTL8366RB_PORT_VLAN_CTRL_SHIFT(_p) (4 * ((_p) % 4))
#define RTL8366RB_VLAN_TABLE_READ_BASE 0x018C
#define RTL8366RB_VLAN_TABLE_WRITE_BASE 0x0185
#define RTL8366RB_TABLE_ACCESS_CTRL_REG 0x0180
#define RTL8366RB_TABLE_VLAN_READ_CTRL 0x0E01
#define RTL8366RB_TABLE_VLAN_WRITE_CTRL 0x0F01
#define RTL8366RB_VLAN_MC_BASE(_x) (0x0020 + (_x) * 3)
#define RTL8366RB_PORT_LINK_STATUS_BASE 0x0014
#define RTL8366RB_PORT_STATUS_SPEED_MASK 0x0003
#define RTL8366RB_PORT_STATUS_DUPLEX_MASK 0x0004
#define RTL8366RB_PORT_STATUS_LINK_MASK 0x0010
#define RTL8366RB_PORT_STATUS_TXPAUSE_MASK 0x0020
#define RTL8366RB_PORT_STATUS_RXPAUSE_MASK 0x0040
#define RTL8366RB_PORT_STATUS_AN_MASK 0x0080
#define RTL8366RB_PORT_NUM_CPU 5
#define RTL8366RB_NUM_PORTS 6
#define RTL8366RB_NUM_VLANS 16
#define RTL8366RB_NUM_LEDGROUPS 4
#define RTL8366RB_NUM_VIDS 4096
#define RTL8366RB_PRIORITYMAX 7
#define RTL8366RB_FIDMAX 7
#define RTL8366RB_PORT_1 (1 << 0) /* In userspace port 0 */
#define RTL8366RB_PORT_2 (1 << 1) /* In userspace port 1 */
#define RTL8366RB_PORT_3 (1 << 2) /* In userspace port 2 */
#define RTL8366RB_PORT_4 (1 << 3) /* In userspace port 3 */
#define RTL8366RB_PORT_5 (1 << 4) /* In userspace port 4 */
#define RTL8366RB_PORT_CPU (1 << 5) /* CPU port */
#define RTL8366RB_PORT_ALL (RTL8366RB_PORT_1 | \
RTL8366RB_PORT_2 | \
RTL8366RB_PORT_3 | \
RTL8366RB_PORT_4 | \
RTL8366RB_PORT_5 | \
RTL8366RB_PORT_CPU)
#define RTL8366RB_PORT_ALL_BUT_CPU (RTL8366RB_PORT_1 | \
RTL8366RB_PORT_2 | \
RTL8366RB_PORT_3 | \
RTL8366RB_PORT_4 | \
RTL8366RB_PORT_5)
#define RTL8366RB_PORT_ALL_EXTERNAL (RTL8366RB_PORT_1 | \
RTL8366RB_PORT_2 | \
RTL8366RB_PORT_3 | \
RTL8366RB_PORT_4)
#define RTL8366RB_PORT_ALL_INTERNAL RTL8366RB_PORT_CPU
#define RTL8366RB_VLAN_VID_MASK 0xfff
#define RTL8366RB_VLAN_PRIORITY_SHIFT 12
#define RTL8366RB_VLAN_PRIORITY_MASK 0x7
#define RTL8366RB_VLAN_UNTAG_SHIFT 8
#define RTL8366RB_VLAN_UNTAG_MASK 0xff
#define RTL8366RB_VLAN_MEMBER_MASK 0xff
#define RTL8366RB_VLAN_FID_MASK 0x7
/* Port ingress bandwidth control */
#define RTL8366RB_IB_BASE 0x0200
#define RTL8366RB_IB_REG(pnum) (RTL8366RB_IB_BASE + pnum)
#define RTL8366RB_IB_BDTH_MASK 0x3fff
#define RTL8366RB_IB_PREIFG_OFFSET 14
#define RTL8366RB_IB_PREIFG_MASK (1 << RTL8366RB_IB_PREIFG_OFFSET)
/* Port egress bandwidth control */
#define RTL8366RB_EB_BASE 0x02d1
#define RTL8366RB_EB_REG(pnum) (RTL8366RB_EB_BASE + pnum)
#define RTL8366RB_EB_BDTH_MASK 0x3fff
#define RTL8366RB_EB_PREIFG_REG 0x02f8
#define RTL8366RB_EB_PREIFG_OFFSET 9
#define RTL8366RB_EB_PREIFG_MASK (1 << RTL8366RB_EB_PREIFG_OFFSET)
#define RTL8366RB_BDTH_SW_MAX 1048512
#define RTL8366RB_BDTH_UNIT 64
#define RTL8366RB_BDTH_REG_DEFAULT 16383
/* QOS */
#define RTL8366RB_QOS_BIT 15
#define RTL8366RB_QOS_MASK (1 << RTL8366RB_QOS_BIT)
/* Include/Exclude Preamble and IFG (20 bytes). 0:Exclude, 1:Include. */
#define RTL8366RB_QOS_DEFAULT_PREIFG 1
static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = {
{ 0, 0, 4, "IfInOctets" },
{ 0, 4, 4, "EtherStatsOctets" },
{ 0, 8, 2, "EtherStatsUnderSizePkts" },
{ 0, 10, 2, "EtherFragments" },
{ 0, 12, 2, "EtherStatsPkts64Octets" },
{ 0, 14, 2, "EtherStatsPkts65to127Octets" },
{ 0, 16, 2, "EtherStatsPkts128to255Octets" },
{ 0, 18, 2, "EtherStatsPkts256to511Octets" },
{ 0, 20, 2, "EtherStatsPkts512to1023Octets" },
{ 0, 22, 2, "EtherStatsPkts1024to1518Octets" },
{ 0, 24, 2, "EtherOversizeStats" },
{ 0, 26, 2, "EtherStatsJabbers" },
{ 0, 28, 2, "IfInUcastPkts" },
{ 0, 30, 2, "EtherStatsMulticastPkts" },
{ 0, 32, 2, "EtherStatsBroadcastPkts" },
{ 0, 34, 2, "EtherStatsDropEvents" },
{ 0, 36, 2, "Dot3StatsFCSErrors" },
{ 0, 38, 2, "Dot3StatsSymbolErrors" },
{ 0, 40, 2, "Dot3InPauseFrames" },
{ 0, 42, 2, "Dot3ControlInUnknownOpcodes" },
{ 0, 44, 4, "IfOutOctets" },
{ 0, 48, 2, "Dot3StatsSingleCollisionFrames" },
{ 0, 50, 2, "Dot3StatMultipleCollisionFrames" },
{ 0, 52, 2, "Dot3sDeferredTransmissions" },
{ 0, 54, 2, "Dot3StatsLateCollisions" },
{ 0, 56, 2, "EtherStatsCollisions" },
{ 0, 58, 2, "Dot3StatsExcessiveCollisions" },
{ 0, 60, 2, "Dot3OutPauseFrames" },
{ 0, 62, 2, "Dot1dBasePortDelayExceededDiscards" },
{ 0, 64, 2, "Dot1dTpPortInDiscards" },
{ 0, 66, 2, "IfOutUcastPkts" },
{ 0, 68, 2, "IfOutMulticastPkts" },
{ 0, 70, 2, "IfOutBroadcastPkts" },
};
#define REG_WR(_smi, _reg, _val) \
do { \
err = rtl8366_smi_write_reg(_smi, _reg, _val); \
if (err) \
return err; \
} while (0)
#define REG_RMW(_smi, _reg, _mask, _val) \
do { \
err = rtl8366_smi_rmwr(_smi, _reg, _mask, _val); \
if (err) \
return err; \
} while (0)
static int rtl8366rb_reset_chip(struct rtl8366_smi *smi)
{
int timeout = 10;
u32 data;
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))
return -EIO;
if (!(data & RTL8366RB_CHIP_CTRL_RESET_HW))
break;
} while (--timeout);
if (!timeout) {
printk("Timeout waiting for the switch to reset\n");
return -EIO;
}
return 0;
}
static int rtl8366rb_hw_init(struct rtl8366_smi *smi)
{
int err;
/* set maximum packet length to 1536 bytes */
REG_RMW(smi, RTL8366RB_SGCR, RTL8366RB_SGCR_MAX_LENGTH_MASK,
RTL8366RB_SGCR_MAX_LENGTH_1536);
/* enable learning for all ports */
REG_WR(smi, RTL8366RB_SSCR0, 0);
/* enable auto ageing for all ports */
REG_WR(smi, RTL8366RB_SSCR1, 0);
/*
* discard VLAN tagged packets if the port is not a member of
* the VLAN with which the packets is associated.
*/
REG_WR(smi, RTL8366RB_VLAN_INGRESS_CTRL2_REG, RTL8366RB_PORT_ALL);
/* don't drop packets whose DA has not been learned */
REG_RMW(smi, RTL8366RB_SSCR2, RTL8366RB_SSCR2_DROP_UNKNOWN_DA, 0);
return 0;
}
static int rtl8366rb_read_phy_reg(struct rtl8366_smi *smi,
u32 phy_no, u32 page, u32 addr, u32 *data)
{
u32 reg;
int ret;
if (phy_no > RTL8366RB_PHY_NO_MAX)
return -EINVAL;
if (page > RTL8366RB_PHY_PAGE_MAX)
return -EINVAL;
if (addr > RTL8366RB_PHY_ADDR_MAX)
return -EINVAL;
ret = rtl8366_smi_write_reg(smi, RTL8366RB_PHY_ACCESS_CTRL_REG,
RTL8366RB_PHY_CTRL_READ);
if (ret)
return ret;
reg = 0x8000 | (1 << (phy_no + RTL8366RB_PHY_NO_OFFSET)) |
((page << RTL8366RB_PHY_PAGE_OFFSET) & RTL8366RB_PHY_PAGE_MASK) |
(addr & RTL8366RB_PHY_REG_MASK);
ret = rtl8366_smi_write_reg(smi, reg, 0);
if (ret)
return ret;
ret = rtl8366_smi_read_reg(smi, RTL8366RB_PHY_ACCESS_DATA_REG, data);
if (ret)
return ret;
return 0;
}
static int rtl8366rb_write_phy_reg(struct rtl8366_smi *smi,
u32 phy_no, u32 page, u32 addr, u32 data)
{
u32 reg;
int ret;
if (phy_no > RTL8366RB_PHY_NO_MAX)
return -EINVAL;
if (page > RTL8366RB_PHY_PAGE_MAX)
return -EINVAL;
if (addr > RTL8366RB_PHY_ADDR_MAX)
return -EINVAL;
ret = rtl8366_smi_write_reg(smi, RTL8366RB_PHY_ACCESS_CTRL_REG,
RTL8366RB_PHY_CTRL_WRITE);
if (ret)
return ret;
reg = 0x8000 | (1 << (phy_no + RTL8366RB_PHY_NO_OFFSET)) |
((page << RTL8366RB_PHY_PAGE_OFFSET) & RTL8366RB_PHY_PAGE_MASK) |
(addr & RTL8366RB_PHY_REG_MASK);
ret = rtl8366_smi_write_reg(smi, reg, data);
if (ret)
return ret;
return 0;
}
static int rtl8366rb_get_mib_counter(struct rtl8366_smi *smi, int counter,
int port, unsigned long long *val)
{
int i;
int err;
u32 addr, data;
u64 mibvalue;
if (port > RTL8366RB_NUM_PORTS || counter >= RTL8366RB_MIB_COUNT)
return -EINVAL;
addr = RTL8366RB_MIB_COUNTER_BASE +
RTL8366RB_MIB_COUNTER_PORT_OFFSET * (port) +
rtl8366rb_mib_counters[counter].offset;
/*
* 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, RTL8366RB_MIB_CTRL_REG, &data);
if (err)
return err;
if (data & RTL8366RB_MIB_CTRL_BUSY_MASK)
return -EBUSY;
if (data & RTL8366RB_MIB_CTRL_RESET_MASK)
return -EIO;
mibvalue = 0;
for (i = rtl8366rb_mib_counters[counter].length; i > 0; i--) {
err = rtl8366_smi_read_reg(smi, addr + (i - 1), &data);
if (err)
return err;
mibvalue = (mibvalue << 16) | (data & 0xFFFF);
}
*val = mibvalue;
return 0;
}
static int rtl8366rb_get_vlan_4k(struct rtl8366_smi *smi, u32 vid,
struct rtl8366_vlan_4k *vlan4k)
{
u32 data[3];
int err;
int i;
memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k));
if (vid >= RTL8366RB_NUM_VIDS)
return -EINVAL;
/* write VID */
err = rtl8366_smi_write_reg(smi, RTL8366RB_VLAN_TABLE_WRITE_BASE,
vid & RTL8366RB_VLAN_VID_MASK);
if (err)
return err;
/* write table access control word */
err = rtl8366_smi_write_reg(smi, RTL8366RB_TABLE_ACCESS_CTRL_REG,
RTL8366RB_TABLE_VLAN_READ_CTRL);
if (err)
return err;
for (i = 0; i < 3; i++) {
err = rtl8366_smi_read_reg(smi,
RTL8366RB_VLAN_TABLE_READ_BASE + i,
&data[i]);
if (err)
return err;
}
vlan4k->vid = vid;
vlan4k->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
RTL8366RB_VLAN_UNTAG_MASK;
vlan4k->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
vlan4k->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
return 0;
}
static int rtl8366rb_set_vlan_4k(struct rtl8366_smi *smi,
const struct rtl8366_vlan_4k *vlan4k)
{
u32 data[3];
int err;
int i;
if (vlan4k->vid >= RTL8366RB_NUM_VIDS ||
vlan4k->member > RTL8366RB_VLAN_MEMBER_MASK ||
vlan4k->untag > RTL8366RB_VLAN_UNTAG_MASK ||
vlan4k->fid > RTL8366RB_FIDMAX)
return -EINVAL;
data[0] = vlan4k->vid & RTL8366RB_VLAN_VID_MASK;
data[1] = (vlan4k->member & RTL8366RB_VLAN_MEMBER_MASK) |
((vlan4k->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
RTL8366RB_VLAN_UNTAG_SHIFT);
data[2] = vlan4k->fid & RTL8366RB_VLAN_FID_MASK;
for (i = 0; i < 3; i++) {
err = rtl8366_smi_write_reg(smi,
RTL8366RB_VLAN_TABLE_WRITE_BASE + i,
data[i]);
if (err)
return err;
}
/* write table access control word */
err = rtl8366_smi_write_reg(smi, RTL8366RB_TABLE_ACCESS_CTRL_REG,
RTL8366RB_TABLE_VLAN_WRITE_CTRL);
return err;
}
static int rtl8366rb_get_vlan_mc(struct rtl8366_smi *smi, u32 index,
struct rtl8366_vlan_mc *vlanmc)
{
u32 data[3];
int err;
int i;
memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc));
if (index >= RTL8366RB_NUM_VLANS)
return -EINVAL;
for (i = 0; i < 3; i++) {
err = rtl8366_smi_read_reg(smi,
RTL8366RB_VLAN_MC_BASE(index) + i,
&data[i]);
if (err)
return err;
}
vlanmc->vid = data[0] & RTL8366RB_VLAN_VID_MASK;
vlanmc->priority = (data[0] >> RTL8366RB_VLAN_PRIORITY_SHIFT) &
RTL8366RB_VLAN_PRIORITY_MASK;
vlanmc->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
RTL8366RB_VLAN_UNTAG_MASK;
vlanmc->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
vlanmc->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
return 0;
}
static int rtl8366rb_set_vlan_mc(struct rtl8366_smi *smi, u32 index,
const struct rtl8366_vlan_mc *vlanmc)
{
u32 data[3];
int err;
int i;
if (index >= RTL8366RB_NUM_VLANS ||
vlanmc->vid >= RTL8366RB_NUM_VIDS ||
vlanmc->priority > RTL8366RB_PRIORITYMAX ||
vlanmc->member > RTL8366RB_VLAN_MEMBER_MASK ||
vlanmc->untag > RTL8366RB_VLAN_UNTAG_MASK ||
vlanmc->fid > RTL8366RB_FIDMAX)
return -EINVAL;
data[0] = (vlanmc->vid & RTL8366RB_VLAN_VID_MASK) |
((vlanmc->priority & RTL8366RB_VLAN_PRIORITY_MASK) <<
RTL8366RB_VLAN_PRIORITY_SHIFT);
data[1] = (vlanmc->member & RTL8366RB_VLAN_MEMBER_MASK) |
((vlanmc->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
RTL8366RB_VLAN_UNTAG_SHIFT);
data[2] = vlanmc->fid & RTL8366RB_VLAN_FID_MASK;
for (i = 0; i < 3; i++) {
err = rtl8366_smi_write_reg(smi,
RTL8366RB_VLAN_MC_BASE(index) + i,
data[i]);
if (err)
return err;
}
return 0;
}
static int rtl8366rb_get_mc_index(struct rtl8366_smi *smi, int port, int *val)
{
u32 data;
int err;
if (port >= RTL8366RB_NUM_PORTS)
return -EINVAL;
err = rtl8366_smi_read_reg(smi, RTL8366RB_PORT_VLAN_CTRL_REG(port),
&data);
if (err)
return err;
*val = (data >> RTL8366RB_PORT_VLAN_CTRL_SHIFT(port)) &
RTL8366RB_PORT_VLAN_CTRL_MASK;
return 0;
}
static int rtl8366rb_set_mc_index(struct rtl8366_smi *smi, int port, int index)
{
if (port >= RTL8366RB_NUM_PORTS || index >= RTL8366RB_NUM_VLANS)
return -EINVAL;
return rtl8366_smi_rmwr(smi, RTL8366RB_PORT_VLAN_CTRL_REG(port),
RTL8366RB_PORT_VLAN_CTRL_MASK <<
RTL8366RB_PORT_VLAN_CTRL_SHIFT(port),
(index & RTL8366RB_PORT_VLAN_CTRL_MASK) <<
RTL8366RB_PORT_VLAN_CTRL_SHIFT(port));
}
static int rtl8366rb_is_vlan_valid(struct rtl8366_smi *smi, unsigned vlan)
{
unsigned max = RTL8366RB_NUM_VLANS;
if (smi->vlan4k_enabled)
max = RTL8366RB_NUM_VIDS - 1;
if (vlan == 0 || vlan >= max)
return 0;
return 1;
}
static int rtl8366rb_enable_vlan(struct rtl8366_smi *smi, int enable)
{
return rtl8366_smi_rmwr(smi, RTL8366RB_SGCR, RTL8366RB_SGCR_EN_VLAN,
(enable) ? RTL8366RB_SGCR_EN_VLAN : 0);
}
static int rtl8366rb_enable_vlan4k(struct rtl8366_smi *smi, int enable)
{
return rtl8366_smi_rmwr(smi, RTL8366RB_SGCR,
RTL8366RB_SGCR_EN_VLAN_4KTB,
(enable) ? RTL8366RB_SGCR_EN_VLAN_4KTB : 0);
}
static int rtl8366rb_enable_port(struct rtl8366_smi *smi, int port, int enable)
{
return rtl8366_smi_rmwr(smi, RTL8366RB_PECR, (1 << port),
(enable) ? 0 : (1 << port));
}
static int rtl8366rb_sw_reset_mibs(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
return rtl8366_smi_rmwr(smi, RTL8366RB_MIB_CTRL_REG, 0,
RTL8366RB_MIB_CTRL_GLOBAL_RESET);
}
static int rtl8366rb_sw_get_blinkrate(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_LED_BLINKRATE_REG, &data);
val->value.i = (data & (RTL8366RB_LED_BLINKRATE_MASK));
return 0;
}
static int rtl8366rb_sw_set_blinkrate(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
if (val->value.i >= 6)
return -EINVAL;
return rtl8366_smi_rmwr(smi, RTL8366RB_LED_BLINKRATE_REG,
RTL8366RB_LED_BLINKRATE_MASK,
val->value.i);
}
static int rtl8366rb_sw_get_learning_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_SSCR0, &data);
val->value.i = !data;
return 0;
}
static int rtl8366rb_sw_set_learning_enable(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
u32 portmask = 0;
int err = 0;
if (!val->value.i)
portmask = RTL8366RB_PORT_ALL;
/* set learning for all ports */
REG_WR(smi, RTL8366RB_SSCR0, portmask);
/* set auto ageing for all ports */
REG_WR(smi, RTL8366RB_SSCR1, portmask);
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)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
u32 len = 0, data = 0;
if (val->port_vlan >= 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);
if (val->port_vlan % 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);
}
val->value.s = smi->buf;
val->len = len;
return 0;
}
static int rtl8366rb_sw_set_port_led(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
u32 data;
u32 mask;
u32 reg;
if (val->port_vlan >= RTL8366RB_NUM_PORTS)
return -EINVAL;
if (val->port_vlan == RTL8366RB_PORT_NUM_CPU) {
reg = RTL8366RB_LED_BLINKRATE_REG;
mask = 0xF << 4;
data = val->value.i << 4;
} else {
reg = RTL8366RB_LED_CTRL_REG;
mask = 0xF << (val->port_vlan * 4),
data = val->value.i << (val->port_vlan * 4);
}
return rtl8366_smi_rmwr(smi, reg, mask, data);
}
static int rtl8366rb_sw_get_port_led(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
u32 data = 0;
if (val->port_vlan >= RTL8366RB_NUM_LEDGROUPS)
return -EINVAL;
rtl8366_smi_read_reg(smi, RTL8366RB_LED_CTRL_REG, &data);
val->value.i = (data >> (val->port_vlan * 4)) & 0x000F;
return 0;
}
static int rtl8366rb_sw_set_port_disable(struct switch_dev *dev,
const struct switch_attr *attr,
struct switch_val *val)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
u32 mask, data;
if (val->port_vlan >= RTL8366RB_NUM_PORTS)
return -EINVAL;
mask = 1 << val->port_vlan ;
if (val->value.i)
data = mask;
else
data = 0;
return rtl8366_smi_rmwr(smi, RTL8366RB_PECR, mask, data);
}
static int rtl8366rb_sw_get_port_disable(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;
rtl8366_smi_read_reg(smi, RTL8366RB_PECR, &data);
if (data & (1 << val->port_vlan))
val->value.i = 1;
else
val->value.i = 0;
return 0;
}
static int rtl8366rb_sw_set_port_rate_in(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;
if (val->value.i > 0 && val->value.i < RTL8366RB_BDTH_SW_MAX)
val->value.i = (val->value.i - 1) / RTL8366RB_BDTH_UNIT;
else
val->value.i = RTL8366RB_BDTH_REG_DEFAULT;
return rtl8366_smi_rmwr(smi, RTL8366RB_IB_REG(val->port_vlan),
RTL8366RB_IB_BDTH_MASK | RTL8366RB_IB_PREIFG_MASK,
val->value.i |
(RTL8366RB_QOS_DEFAULT_PREIFG << RTL8366RB_IB_PREIFG_OFFSET));
}
static int rtl8366rb_sw_get_port_rate_in(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;
rtl8366_smi_read_reg(smi, RTL8366RB_IB_REG(val->port_vlan), &data);
data &= RTL8366RB_IB_BDTH_MASK;
if (data < RTL8366RB_IB_BDTH_MASK)
data += 1;
val->value.i = (int)data * RTL8366RB_BDTH_UNIT;
return 0;
}
static int rtl8366rb_sw_set_port_rate_out(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;
rtl8366_smi_rmwr(smi, RTL8366RB_EB_PREIFG_REG,
RTL8366RB_EB_PREIFG_MASK,
(RTL8366RB_QOS_DEFAULT_PREIFG << RTL8366RB_EB_PREIFG_OFFSET));
if (val->value.i > 0 && val->value.i < RTL8366RB_BDTH_SW_MAX)
val->value.i = (val->value.i - 1) / RTL8366RB_BDTH_UNIT;
else
val->value.i = RTL8366RB_BDTH_REG_DEFAULT;
return rtl8366_smi_rmwr(smi, RTL8366RB_EB_REG(val->port_vlan),
RTL8366RB_EB_BDTH_MASK, val->value.i );
}
static int rtl8366rb_sw_get_port_rate_out(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;
rtl8366_smi_read_reg(smi, RTL8366RB_EB_REG(val->port_vlan), &data);
data &= RTL8366RB_EB_BDTH_MASK;
if (data < RTL8366RB_EB_BDTH_MASK)
data += 1;
val->value.i = (int)data * RTL8366RB_BDTH_UNIT;
return 0;
}
static int rtl8366rb_sw_set_qos_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_QOS_MASK;
else
data = 0;
return rtl8366_smi_rmwr(smi, RTL8366RB_SGCR, RTL8366RB_QOS_MASK, data);
}
static int rtl8366rb_sw_get_qos_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_SGCR, &data);
if (data & RTL8366RB_QOS_MASK)
val->value.i = 1;
else
val->value.i = 0;
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 int rtl8366rb_sw_reset_switch(struct switch_dev *dev)
{
struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
int err;
err = rtl8366rb_reset_chip(smi);
if (err)
return err;
err = rtl8366rb_hw_init(smi);
if (err)
return err;
err = rtl8366_reset_vlan(smi);
if (err)
return err;
err = rtl8366_enable_vlan(smi, 1);
if (err)
return err;
return rtl8366_enable_all_ports(smi, 1);
}
static struct switch_attr rtl8366rb_globals[] = {
{
.type = SWITCH_TYPE_INT,
.name = "enable_learning",
.description = "Enable learning, enable aging",
.set = rtl8366rb_sw_set_learning_enable,
.get = rtl8366rb_sw_get_learning_enable,
.max = 1
}, {
.type = SWITCH_TYPE_INT,
.name = "enable_vlan",
.description = "Enable VLAN mode",
.set = rtl8366_sw_set_vlan_enable,
.get = rtl8366_sw_get_vlan_enable,
.max = 1,
.ofs = 1
}, {
.type = SWITCH_TYPE_INT,
.name = "enable_vlan4k",
.description = "Enable VLAN 4K mode",
.set = rtl8366_sw_set_vlan_enable,
.get = rtl8366_sw_get_vlan_enable,
.max = 1,
.ofs = 2
}, {
.type = SWITCH_TYPE_NOVAL,
.name = "reset_mibs",
.description = "Reset all MIB counters",
.set = rtl8366rb_sw_reset_mibs,
}, {
.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 = rtl8366rb_sw_set_blinkrate,
.get = rtl8366rb_sw_get_blinkrate,
.max = 5
}, {
.type = SWITCH_TYPE_INT,
.name = "enable_qos",
.description = "Enable QOS",
.set = rtl8366rb_sw_set_qos_enable,
.get = rtl8366rb_sw_get_qos_enable,
.max = 1
},
};
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",
.set = rtl8366rb_sw_reset_port_mibs,
}, {
.type = SWITCH_TYPE_STRING,
.name = "mib",
.description = "Get MIB counters for port",
.max = 33,
.set = NULL,
.get = rtl8366_sw_get_port_mib,
}, {
.type = SWITCH_TYPE_INT,
.name = "led",
.description = "Get/Set port group (0 - 3) led mode (0 - 15)",
.max = 15,
.set = rtl8366rb_sw_set_port_led,
.get = rtl8366rb_sw_get_port_led,
}, {
.type = SWITCH_TYPE_INT,
.name = "disable",
.description = "Get/Set port state (enabled or disabled)",
.max = 1,
.set = rtl8366rb_sw_set_port_disable,
.get = rtl8366rb_sw_get_port_disable,
}, {
.type = SWITCH_TYPE_INT,
.name = "rate_in",
.description = "Get/Set port ingress (incoming) bandwidth limit in kbps",
.max = RTL8366RB_BDTH_SW_MAX,
.set = rtl8366rb_sw_set_port_rate_in,
.get = rtl8366rb_sw_get_port_rate_in,
}, {
.type = SWITCH_TYPE_INT,
.name = "rate_out",
.description = "Get/Set port egress (outgoing) bandwidth limit in kbps",
.max = RTL8366RB_BDTH_SW_MAX,
.set = rtl8366rb_sw_set_port_rate_out,
.get = rtl8366rb_sw_get_port_rate_out,
},
};
static struct switch_attr rtl8366rb_vlan[] = {
{
.type = SWITCH_TYPE_STRING,
.name = "info",
.description = "Get vlan information",
.max = 1,
.set = NULL,
.get = rtl8366_sw_get_vlan_info,
}, {
.type = SWITCH_TYPE_INT,
.name = "fid",
.description = "Get/Set vlan FID",
.max = RTL8366RB_FIDMAX,
.set = rtl8366_sw_set_vlan_fid,
.get = rtl8366_sw_get_vlan_fid,
},
};
static const struct switch_dev_ops rtl8366_ops = {
.attr_global = {
.attr = rtl8366rb_globals,
.n_attr = ARRAY_SIZE(rtl8366rb_globals),
},
.attr_port = {
.attr = rtl8366rb_port,
.n_attr = ARRAY_SIZE(rtl8366rb_port),
},
.attr_vlan = {
.attr = rtl8366rb_vlan,
.n_attr = ARRAY_SIZE(rtl8366rb_vlan),
},
.get_vlan_ports = rtl8366_sw_get_vlan_ports,
.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,
};
static int rtl8366rb_switch_init(struct rtl8366_smi *smi)
{
struct switch_dev *dev = &smi->sw_dev;
int err;
dev->name = "RTL8366RB";
dev->cpu_port = RTL8366RB_PORT_NUM_CPU;
dev->ports = RTL8366RB_NUM_PORTS;
dev->vlans = RTL8366RB_NUM_VIDS;
dev->ops = &rtl8366_ops;
dev->alias = dev_name(smi->parent);
err = register_switch(dev, NULL);
if (err)
dev_err(smi->parent, "switch registration failed\n");
return err;
}
static void rtl8366rb_switch_cleanup(struct rtl8366_smi *smi)
{
unregister_switch(&smi->sw_dev);
}
static int rtl8366rb_mii_read(struct mii_bus *bus, int addr, int reg)
{
struct rtl8366_smi *smi = bus->priv;
u32 val = 0;
int err;
err = rtl8366rb_read_phy_reg(smi, addr, 0, reg, &val);
if (err)
return 0xffff;
return val;
}
static int rtl8366rb_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
{
struct rtl8366_smi *smi = bus->priv;
u32 t;
int err;
err = rtl8366rb_write_phy_reg(smi, addr, 0, reg, val);
/* flush write */
(void) rtl8366rb_read_phy_reg(smi, addr, 0, reg, &t);
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;
u32 chip_ver = 0;
int ret;
ret = rtl8366_smi_read_reg(smi, RTL8366RB_CHIP_ID_REG, &chip_id);
if (ret) {
dev_err(smi->parent, "unable to read chip id\n");
return ret;
}
switch (chip_id) {
case RTL8366RB_CHIP_ID_8366:
break;
default:
dev_err(smi->parent, "unknown chip id (%04x)\n", chip_id);
return -ENODEV;
}
ret = rtl8366_smi_read_reg(smi, RTL8366RB_CHIP_VERSION_CTRL_REG,
&chip_ver);
if (ret) {
dev_err(smi->parent, "unable to read chip version\n");
return ret;
}
dev_info(smi->parent, "RTL%04x ver. %u chip found\n",
chip_id, chip_ver & RTL8366RB_CHIP_VERSION_MASK);
return 0;
}
static struct rtl8366_smi_ops rtl8366rb_smi_ops = {
.detect = rtl8366rb_detect,
.setup = rtl8366rb_setup,
.mii_read = rtl8366rb_mii_read,
.mii_write = rtl8366rb_mii_write,
.get_vlan_mc = rtl8366rb_get_vlan_mc,
.set_vlan_mc = rtl8366rb_set_vlan_mc,
.get_vlan_4k = rtl8366rb_get_vlan_4k,
.set_vlan_4k = rtl8366rb_set_vlan_4k,
.get_mc_index = rtl8366rb_get_mc_index,
.set_mc_index = rtl8366rb_set_mc_index,
.get_mib_counter = rtl8366rb_get_mib_counter,
.is_vlan_valid = rtl8366rb_is_vlan_valid,
.enable_vlan = rtl8366rb_enable_vlan,
.enable_vlan4k = rtl8366rb_enable_vlan4k,
.enable_port = rtl8366rb_enable_port,
};
static int __devinit rtl8366rb_probe(struct platform_device *pdev)
{
static int rtl8366_smi_version_printed;
struct rtl8366_platform_data *pdata;
struct rtl8366_smi *smi;
int err;
if (!rtl8366_smi_version_printed++)
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->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;
smi->num_vlan_mc = RTL8366RB_NUM_VLANS;
smi->mib_counters = rtl8366rb_mib_counters;
smi->num_mib_counters = ARRAY_SIZE(rtl8366rb_mib_counters);
err = rtl8366_smi_init(smi);
if (err)
goto err_free_smi;
platform_set_drvdata(pdev, smi);
err = rtl8366rb_switch_init(smi);
if (err)
goto err_clear_drvdata;
return 0;
err_clear_drvdata:
platform_set_drvdata(pdev, NULL);
rtl8366_smi_cleanup(smi);
err_free_smi:
kfree(smi);
err_out:
return err;
}
static int __devexit rtl8366rb_remove(struct platform_device *pdev)
{
struct rtl8366_smi *smi = platform_get_drvdata(pdev);
if (smi) {
rtl8366rb_switch_cleanup(smi);
platform_set_drvdata(pdev, NULL);
rtl8366_smi_cleanup(smi);
kfree(smi);
}
return 0;
}
static struct platform_driver rtl8366rb_driver = {
.driver = {
.name = RTL8366RB_DRIVER_NAME,
.owner = THIS_MODULE,
},
.probe = rtl8366rb_probe,
.remove = __devexit_p(rtl8366rb_remove),
};
static int __init rtl8366rb_module_init(void)
{
return platform_driver_register(&rtl8366rb_driver);
}
module_init(rtl8366rb_module_init);
static void __exit rtl8366rb_module_exit(void)
{
platform_driver_unregister(&rtl8366rb_driver);
}
module_exit(rtl8366rb_module_exit);
MODULE_DESCRIPTION(RTL8366RB_DRIVER_DESC);
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_LICENSE("GPL v2");
MODULE_ALIAS("platform:" RTL8366RB_DRIVER_NAME);
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