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net: dsa: add new DSA switch driver for the SMSC-LAN9303

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The SMSC/Microchip LAN9303 is an ethernet switch device with one CPU port
and two external ethernet ports with built-in phys.

This driver uses the DSA framework, but is currently only capable of
separating the two external ports. There is no offload support yet.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Juergen Beisert
2017-04-18 10:48:25 +02:00
committed by David S. Miller
parent e8fe177a62
commit a1292595e0
2 changed files with 898 additions and 0 deletions
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879
drivers/net/dsa/lan9303-core.c Normal file
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19
drivers/net/dsa/lan9303.h Normal file
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#include <linux/regmap.h>
#include <linux/device.h>
#include <net/dsa.h>
struct lan9303 {
struct device *dev;
struct regmap *regmap;
struct regmap_irq_chip_data *irq_data;
struct gpio_desc *reset_gpio;
u32 reset_duration; /* in [ms] */
bool phy_addr_sel_strap;
struct dsa_switch *ds;
struct mutex indirect_mutex; /* protect indexed register access */
};
extern const struct regmap_access_table lan9303_register_set;
int lan9303_probe(struct lan9303 *chip, struct device_node *np);
int lan9303_remove(struct lan9303 *chip);