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net: mvpp2x: Add GPIO configuration support

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This patch add GPIO configuration support in mvpp2x driver.
Driver will handle 10G SFP gpio reset and SFP TX disable. GPIO pins should
be set in device tree.

Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Tested-by: iSoC Platform CI <ykjenk@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
Reviewed-by: Igal Liberman <igall@marvell.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Chulski 2017-08-09 10:37:43 +03:00 committed by Stefan Roese
parent d529124fdc
commit 4189373a3d
1 changed files with 31 additions and 0 deletions
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31
drivers/net/mvpp2.c
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@ -30,6 +30,7 @@
#include <asm/arch/soc.h>
#include <linux/compat.h>
#include <linux/mbus.h>
#include <asm-generic/gpio.h>
DECLARE_GLOBAL_DATA_PTR;
@ -985,6 +986,10 @@ struct mvpp2_port {
phy_interface_t phy_interface;
int phy_node;
int phyaddr;
#ifdef CONFIG_DM_GPIO
struct gpio_desc phy_reset_gpio;
struct gpio_desc phy_tx_disable_gpio;
#endif
int init;
unsigned int link;
unsigned int duplex;
@ -4765,6 +4770,13 @@ static int phy_info_parse(struct udevice *dev, struct mvpp2_port *port)
return -EINVAL;
}
#ifdef CONFIG_DM_GPIO
gpio_request_by_name(dev, "phy-reset-gpios", 0,
&port->phy_reset_gpio, GPIOD_IS_OUT);
gpio_request_by_name(dev, "marvell,sfp-tx-disable-gpio", 0,
&port->phy_tx_disable_gpio, GPIOD_IS_OUT);
#endif
/*
* ToDo:
* Not sure if this DT property "phy-speed" will get accepted, so
@ -4786,6 +4798,21 @@ static int phy_info_parse(struct udevice *dev, struct mvpp2_port *port)
return 0;
}
#ifdef CONFIG_DM_GPIO
/* Port GPIO initialization */
static void mvpp2_gpio_init(struct mvpp2_port *port)
{
if (dm_gpio_is_valid(&port->phy_reset_gpio)) {
dm_gpio_set_value(&port->phy_reset_gpio, 0);
udelay(1000);
dm_gpio_set_value(&port->phy_reset_gpio, 1);
}
if (dm_gpio_is_valid(&port->phy_tx_disable_gpio))
dm_gpio_set_value(&port->phy_tx_disable_gpio, 0);
}
#endif
/* Ports initialization */
static int mvpp2_port_probe(struct udevice *dev,
struct mvpp2_port *port,
@ -4804,6 +4831,10 @@ static int mvpp2_port_probe(struct udevice *dev,
}
mvpp2_port_power_up(port);
#ifdef CONFIG_DM_GPIO
mvpp2_gpio_init(port);
#endif
priv->port_list[port->id] = port;
return 0;
}