mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 16:01:14 +07:00
dsa: add DSA switch driver for Microchip KSZ9477
The KSZ9477 is a fully integrated layer 2, managed, 7 ports GigE switch with numerous advanced features. 5 ports incorporate 10/100/1000 Mbps PHYs. The other 2 ports have interfaces that can be configured as SGMII, RGMII, MII or RMII. Either of these may connect directly to a host processor or to an external PHY. The SGMII port may interface to a fiber optic transceiver. This driver currently supports vlan, fdb, mdb & mirror dsa switch operations. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Woojung Huh
David S. Miller
parent
fc3973a1fa
commit
b987e98e50
@ -39,6 +39,8 @@ config NET_DSA_MV88E6060
|
||||
This enables support for the Marvell 88E6060 ethernet switch
|
||||
chip.
|
||||
|
||||
source "drivers/net/dsa/microchip/Kconfig"
|
||||
|
||||
source "drivers/net/dsa/mv88e6xxx/Kconfig"
|
||||
|
||||
config NET_DSA_QCA8K
|
||||
|
||||
@ -8,4 +8,5 @@ obj-$(CONFIG_NET_DSA_SMSC_LAN9303) += lan9303-core.o
|
||||
obj-$(CONFIG_NET_DSA_SMSC_LAN9303_I2C) += lan9303_i2c.o
|
||||
obj-$(CONFIG_NET_DSA_SMSC_LAN9303_MDIO) += lan9303_mdio.o
|
||||
obj-y += b53/
|
||||
obj-y += microchip/
|
||||
obj-y += mv88e6xxx/
|
||||
|
||||
12
drivers/net/dsa/microchip/Kconfig
Normal file
12
drivers/net/dsa/microchip/Kconfig
Normal file
@ -0,0 +1,12 @@
|
||||
menuconfig MICROCHIP_KSZ
|
||||
tristate "Microchip KSZ series switch support"
|
||||
depends on NET_DSA
|
||||
select NET_DSA_TAG_KSZ
|
||||
help
|
||||
This driver adds support for Microchip KSZ switch chips.
|
||||
|
||||
config MICROCHIP_KSZ_SPI_DRIVER
|
||||
tristate "KSZ series SPI connected switch driver"
|
||||
depends on MICROCHIP_KSZ && SPI
|
||||
help
|
||||
Select to enable support for registering switches configured through SPI.
|
||||
2
drivers/net/dsa/microchip/Makefile
Normal file
2
drivers/net/dsa/microchip/Makefile
Normal file
@ -0,0 +1,2 @@
|
||||
obj-$(CONFIG_MICROCHIP_KSZ) += ksz_common.o
|
||||
obj-$(CONFIG_MICROCHIP_KSZ_SPI_DRIVER) += ksz_spi.o
|
||||
1676
drivers/net/dsa/microchip/ksz_9477_reg.h
Normal file
1676
drivers/net/dsa/microchip/ksz_9477_reg.h
Normal file
File diff suppressed because it is too large
Load Diff
1279
drivers/net/dsa/microchip/ksz_common.c
Normal file
1279
drivers/net/dsa/microchip/ksz_common.c
Normal file
File diff suppressed because it is too large
Load Diff
210
drivers/net/dsa/microchip/ksz_priv.h
Normal file
210
drivers/net/dsa/microchip/ksz_priv.h
Normal file
@ -0,0 +1,210 @@
|
||||
/*
|
||||
* Microchip KSZ series switch common definitions
|
||||
*
|
||||
* Copyright (C) 2017
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef __KSZ_PRIV_H
|
||||
#define __KSZ_PRIV_H
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/phy.h>
|
||||
#include <linux/etherdevice.h>
|
||||
#include <net/dsa.h>
|
||||
|
||||
#include "ksz_9477_reg.h"
|
||||
|
||||
struct ksz_io_ops;
|
||||
|
||||
struct vlan_table {
|
||||
u32 table[3];
|
||||
};
|
||||
|
||||
struct ksz_device {
|
||||
struct dsa_switch *ds;
|
||||
struct ksz_platform_data *pdata;
|
||||
const char *name;
|
||||
|
||||
struct mutex reg_mutex; /* register access */
|
||||
struct mutex stats_mutex; /* status access */
|
||||
struct mutex alu_mutex; /* ALU access */
|
||||
struct mutex vlan_mutex; /* vlan access */
|
||||
const struct ksz_io_ops *ops;
|
||||
|
||||
struct device *dev;
|
||||
|
||||
void *priv;
|
||||
|
||||
/* chip specific data */
|
||||
u32 chip_id;
|
||||
int num_vlans;
|
||||
int num_alus;
|
||||
int num_statics;
|
||||
int cpu_port; /* port connected to CPU */
|
||||
int cpu_ports; /* port bitmap can be cpu port */
|
||||
int port_cnt;
|
||||
|
||||
struct vlan_table *vlan_cache;
|
||||
|
||||
u64 mib_value[TOTAL_SWITCH_COUNTER_NUM];
|
||||
};
|
||||
|
||||
struct ksz_io_ops {
|
||||
int (*read8)(struct ksz_device *dev, u32 reg, u8 *value);
|
||||
int (*read16)(struct ksz_device *dev, u32 reg, u16 *value);
|
||||
int (*read24)(struct ksz_device *dev, u32 reg, u32 *value);
|
||||
int (*read32)(struct ksz_device *dev, u32 reg, u32 *value);
|
||||
int (*write8)(struct ksz_device *dev, u32 reg, u8 value);
|
||||
int (*write16)(struct ksz_device *dev, u32 reg, u16 value);
|
||||
int (*write24)(struct ksz_device *dev, u32 reg, u32 value);
|
||||
int (*write32)(struct ksz_device *dev, u32 reg, u32 value);
|
||||
int (*phy_read16)(struct ksz_device *dev, int addr, int reg,
|
||||
u16 *value);
|
||||
int (*phy_write16)(struct ksz_device *dev, int addr, int reg,
|
||||
u16 value);
|
||||
};
|
||||
|
||||
struct ksz_device *ksz_switch_alloc(struct device *base,
|
||||
const struct ksz_io_ops *ops, void *priv);
|
||||
int ksz_switch_detect(struct ksz_device *dev);
|
||||
int ksz_switch_register(struct ksz_device *dev);
|
||||
void ksz_switch_remove(struct ksz_device *dev);
|
||||
|
||||
static inline int ksz_read8(struct ksz_device *dev, u32 reg, u8 *val)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->read8(dev, reg, val);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int ksz_read16(struct ksz_device *dev, u32 reg, u16 *val)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->read16(dev, reg, val);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int ksz_read24(struct ksz_device *dev, u32 reg, u32 *val)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->read24(dev, reg, val);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int ksz_read32(struct ksz_device *dev, u32 reg, u32 *val)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->read32(dev, reg, val);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int ksz_write8(struct ksz_device *dev, u32 reg, u8 value)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->write8(dev, reg, value);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int ksz_write16(struct ksz_device *dev, u32 reg, u16 value)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->write16(dev, reg, value);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int ksz_write24(struct ksz_device *dev, u32 reg, u32 value)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->write24(dev, reg, value);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline int ksz_write32(struct ksz_device *dev, u32 reg, u32 value)
|
||||
{
|
||||
int ret;
|
||||
|
||||
mutex_lock(&dev->reg_mutex);
|
||||
ret = dev->ops->write32(dev, reg, value);
|
||||
mutex_unlock(&dev->reg_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline void ksz_pread8(struct ksz_device *dev, int port, int offset,
|
||||
u8 *data)
|
||||
{
|
||||
ksz_read8(dev, PORT_CTRL_ADDR(port, offset), data);
|
||||
}
|
||||
|
||||
static inline void ksz_pread16(struct ksz_device *dev, int port, int offset,
|
||||
u16 *data)
|
||||
{
|
||||
ksz_read16(dev, PORT_CTRL_ADDR(port, offset), data);
|
||||
}
|
||||
|
||||
static inline void ksz_pread32(struct ksz_device *dev, int port, int offset,
|
||||
u32 *data)
|
||||
{
|
||||
ksz_read32(dev, PORT_CTRL_ADDR(port, offset), data);
|
||||
}
|
||||
|
||||
static inline void ksz_pwrite8(struct ksz_device *dev, int port, int offset,
|
||||
u8 data)
|
||||
{
|
||||
ksz_write8(dev, PORT_CTRL_ADDR(port, offset), data);
|
||||
}
|
||||
|
||||
static inline void ksz_pwrite16(struct ksz_device *dev, int port, int offset,
|
||||
u16 data)
|
||||
{
|
||||
ksz_write16(dev, PORT_CTRL_ADDR(port, offset), data);
|
||||
}
|
||||
|
||||
static inline void ksz_pwrite32(struct ksz_device *dev, int port, int offset,
|
||||
u32 data)
|
||||
{
|
||||
ksz_write32(dev, PORT_CTRL_ADDR(port, offset), data);
|
||||
}
|
||||
|
||||
#endif
|
||||
216
drivers/net/dsa/microchip/ksz_spi.c
Normal file
216
drivers/net/dsa/microchip/ksz_spi.c
Normal file
@ -0,0 +1,216 @@
|
||||
/*
|
||||
* Microchip KSZ series register access through SPI
|
||||
*
|
||||
* Copyright (C) 2017
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <asm/unaligned.h>
|
||||
|
||||
#include <linux/delay.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/spi/spi.h>
|
||||
|
||||
#include "ksz_priv.h"
|
||||
|
||||
/* SPI frame opcodes */
|
||||
#define KS_SPIOP_RD 3
|
||||
#define KS_SPIOP_WR 2
|
||||
|
||||
#define SPI_ADDR_SHIFT 24
|
||||
#define SPI_ADDR_MASK (BIT(SPI_ADDR_SHIFT) - 1)
|
||||
#define SPI_TURNAROUND_SHIFT 5
|
||||
|
||||
static int ksz_spi_read_reg(struct spi_device *spi, u32 reg, u8 *val,
|
||||
unsigned int len)
|
||||
{
|
||||
u32 txbuf;
|
||||
int ret;
|
||||
|
||||
txbuf = reg & SPI_ADDR_MASK;
|
||||
txbuf |= KS_SPIOP_RD << SPI_ADDR_SHIFT;
|
||||
txbuf <<= SPI_TURNAROUND_SHIFT;
|
||||
txbuf = cpu_to_be32(txbuf);
|
||||
|
||||
ret = spi_write_then_read(spi, &txbuf, 4, val, len);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ksz_spi_read(struct ksz_device *dev, u32 reg, u8 *data,
|
||||
unsigned int len)
|
||||
{
|
||||
struct spi_device *spi = dev->priv;
|
||||
|
||||
return ksz_spi_read_reg(spi, reg, data, len);
|
||||
}
|
||||
|
||||
static int ksz_spi_read8(struct ksz_device *dev, u32 reg, u8 *val)
|
||||
{
|
||||
return ksz_spi_read(dev, reg, val, 1);
|
||||
}
|
||||
|
||||
static int ksz_spi_read16(struct ksz_device *dev, u32 reg, u16 *val)
|
||||
{
|
||||
int ret = ksz_spi_read(dev, reg, (u8 *)val, 2);
|
||||
|
||||
if (!ret)
|
||||
*val = be16_to_cpu(*val);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ksz_spi_read24(struct ksz_device *dev, u32 reg, u32 *val)
|
||||
{
|
||||
int ret;
|
||||
|
||||
*val = 0;
|
||||
ret = ksz_spi_read(dev, reg, (u8 *)val, 3);
|
||||
if (!ret) {
|
||||
*val = be32_to_cpu(*val);
|
||||
/* convert to 24bit */
|
||||
*val >>= 8;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ksz_spi_read32(struct ksz_device *dev, u32 reg, u32 *val)
|
||||
{
|
||||
int ret = ksz_spi_read(dev, reg, (u8 *)val, 4);
|
||||
|
||||
if (!ret)
|
||||
*val = be32_to_cpu(*val);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ksz_spi_write_reg(struct spi_device *spi, u32 reg, u8 *val,
|
||||
unsigned int len)
|
||||
{
|
||||
u32 txbuf;
|
||||
u8 data[12];
|
||||
int i;
|
||||
|
||||
txbuf = reg & SPI_ADDR_MASK;
|
||||
txbuf |= (KS_SPIOP_WR << SPI_ADDR_SHIFT);
|
||||
txbuf <<= SPI_TURNAROUND_SHIFT;
|
||||
txbuf = cpu_to_be32(txbuf);
|
||||
|
||||
data[0] = txbuf & 0xFF;
|
||||
data[1] = (txbuf & 0xFF00) >> 8;
|
||||
data[2] = (txbuf & 0xFF0000) >> 16;
|
||||
data[3] = (txbuf & 0xFF000000) >> 24;
|
||||
for (i = 0; i < len; i++)
|
||||
data[i + 4] = val[i];
|
||||
|
||||
return spi_write(spi, &data, 4 + len);
|
||||
}
|
||||
|
||||
static int ksz_spi_write8(struct ksz_device *dev, u32 reg, u8 value)
|
||||
{
|
||||
struct spi_device *spi = dev->priv;
|
||||
|
||||
return ksz_spi_write_reg(spi, reg, &value, 1);
|
||||
}
|
||||
|
||||
static int ksz_spi_write16(struct ksz_device *dev, u32 reg, u16 value)
|
||||
{
|
||||
struct spi_device *spi = dev->priv;
|
||||
|
||||
value = cpu_to_be16(value);
|
||||
return ksz_spi_write_reg(spi, reg, (u8 *)&value, 2);
|
||||
}
|
||||
|
||||
static int ksz_spi_write24(struct ksz_device *dev, u32 reg, u32 value)
|
||||
{
|
||||
struct spi_device *spi = dev->priv;
|
||||
|
||||
/* make it to big endian 24bit from MSB */
|
||||
value <<= 8;
|
||||
value = cpu_to_be32(value);
|
||||
return ksz_spi_write_reg(spi, reg, (u8 *)&value, 3);
|
||||
}
|
||||
|
||||
static int ksz_spi_write32(struct ksz_device *dev, u32 reg, u32 value)
|
||||
{
|
||||
struct spi_device *spi = dev->priv;
|
||||
|
||||
value = cpu_to_be32(value);
|
||||
return ksz_spi_write_reg(spi, reg, (u8 *)&value, 4);
|
||||
}
|
||||
|
||||
static const struct ksz_io_ops ksz_spi_ops = {
|
||||
.read8 = ksz_spi_read8,
|
||||
.read16 = ksz_spi_read16,
|
||||
.read24 = ksz_spi_read24,
|
||||
.read32 = ksz_spi_read32,
|
||||
.write8 = ksz_spi_write8,
|
||||
.write16 = ksz_spi_write16,
|
||||
.write24 = ksz_spi_write24,
|
||||
.write32 = ksz_spi_write32,
|
||||
};
|
||||
|
||||
static int ksz_spi_probe(struct spi_device *spi)
|
||||
{
|
||||
struct ksz_device *dev;
|
||||
int ret;
|
||||
|
||||
dev = ksz_switch_alloc(&spi->dev, &ksz_spi_ops, spi);
|
||||
if (!dev)
|
||||
return -ENOMEM;
|
||||
|
||||
if (spi->dev.platform_data)
|
||||
dev->pdata = spi->dev.platform_data;
|
||||
|
||||
ret = ksz_switch_register(dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
spi_set_drvdata(spi, dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ksz_spi_remove(struct spi_device *spi)
|
||||
{
|
||||
struct ksz_device *dev = spi_get_drvdata(spi);
|
||||
|
||||
if (dev)
|
||||
ksz_switch_remove(dev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id ksz_dt_ids[] = {
|
||||
{ .compatible = "microchip,ksz9477" },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, ksz_dt_ids);
|
||||
|
||||
static struct spi_driver ksz_spi_driver = {
|
||||
.driver = {
|
||||
.name = "ksz9477-switch",
|
||||
.owner = THIS_MODULE,
|
||||
.of_match_table = of_match_ptr(ksz_dt_ids),
|
||||
},
|
||||
.probe = ksz_spi_probe,
|
||||
.remove = ksz_spi_remove,
|
||||
};
|
||||
|
||||
module_spi_driver(ksz_spi_driver);
|
||||
|
||||
MODULE_AUTHOR("Woojung Huh <Woojung.Huh@microchip.com>");
|
||||
MODULE_DESCRIPTION("Microchip KSZ Series Switch SPI access Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
29
include/linux/platform_data/microchip-ksz.h
Normal file
29
include/linux/platform_data/microchip-ksz.h
Normal file
@ -0,0 +1,29 @@
|
||||
/*
|
||||
* Microchip KSZ series switch platform data
|
||||
*
|
||||
* Copyright (C) 2017
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef __MICROCHIP_KSZ_H
|
||||
#define __MICROCHIP_KSZ_H
|
||||
|
||||
#include <linux/kernel.h>
|
||||
|
||||
struct ksz_platform_data {
|
||||
u32 chip_id;
|
||||
u16 enabled_ports;
|
||||
};
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user