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net: mvneta: Add GPIO configuration support

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This patch add GPIO configuration support in mvneta driver.
Driver will handle PHY reset. GPIO pins should be set in device tree.

Ported from mvpp2x
[https://patchwork.ozlabs.org/patch/799654/]

Initial discussion to port the changes into mvneta
[https://patchwork.ozlabs.org/patch/1005765/]

Signed-off-by: Aditya Prayoga <aditya@kobol.io>
Tested-by: Dennis Gilmore <dgilmore@redhat.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Aditya Prayoga 2018-12-05 00:39:23 +08:00 committed by Joe Hershberger
parent 92f129f4a0
commit 18bfc8fa84
1 changed files with 15 additions and 0 deletions
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15
drivers/net/mvneta.c
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@ -27,6 +27,7 @@
#include <asm/arch/soc.h>
#include <linux/compat.h>
#include <linux/mbus.h>
#include <asm-generic/gpio.h>
DECLARE_GLOBAL_DATA_PTR;
@ -274,6 +275,9 @@ struct mvneta_port {
int init;
int phyaddr;
struct phy_device *phydev;
#ifdef CONFIG_DM_GPIO
struct gpio_desc phy_reset_gpio;
#endif
struct mii_dev *bus;
};
@ -1749,6 +1753,17 @@ static int mvneta_probe(struct udevice *dev)
if (ret)
return ret;
#ifdef CONFIG_DM_GPIO
gpio_request_by_name(dev, "phy-reset-gpios", 0,
&pp->phy_reset_gpio, GPIOD_IS_OUT);
if (dm_gpio_is_valid(&pp->phy_reset_gpio)) {
dm_gpio_set_value(&pp->phy_reset_gpio, 1);
mdelay(10);
dm_gpio_set_value(&pp->phy_reset_gpio, 0);
}
#endif
return board_network_enable(bus);
}