[people/ms/u-boot.git] / drivers / net / phy / lxt.c

/*
 * LXT PHY drivers
 *
 * SPDX-License-Identifier:	GPL-2.0+
 *
 * Copyright 2010-2011 Freescale Semiconductor, Inc.
 * author Andy Fleming
 */
#include <phy.h>

/* LXT971 Status 2 registers */
#define MIIM_LXT971_SR2                     0x11  /* Status Register 2  */
#define MIIM_LXT971_SR2_SPEED_MASK 0x4200
#define MIIM_LXT971_SR2_10HDX     0x0000  /*  10 Mbit half duplex selected */
#define MIIM_LXT971_SR2_10FDX     0x0200  /*  10 Mbit full duplex selected */
#define MIIM_LXT971_SR2_100HDX    0x4000  /* 100 Mbit half duplex selected */
#define MIIM_LXT971_SR2_100FDX    0x4200  /* 100 Mbit full duplex selected */


/* LXT971 */
static int lxt971_parse_status(struct phy_device *phydev)
{
	int mii_reg;
	int speed;

	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_LXT971_SR2);
	speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;

	switch (speed) {
	case MIIM_LXT971_SR2_10HDX:
		phydev->speed = SPEED_10;
		phydev->duplex = DUPLEX_HALF;
		break;
	case MIIM_LXT971_SR2_10FDX:
		phydev->speed = SPEED_10;
		phydev->duplex = DUPLEX_FULL;
		break;
	case MIIM_LXT971_SR2_100HDX:
		phydev->speed = SPEED_100;
		phydev->duplex = DUPLEX_HALF;
		break;
	default:
		phydev->speed = SPEED_100;
		phydev->duplex = DUPLEX_FULL;
	}

	return 0;
}

static int lxt971_startup(struct phy_device *phydev)
{
	genphy_update_link(phydev);
	lxt971_parse_status(phydev);

	return 0;
}

static struct phy_driver LXT971_driver = {
	.name = "LXT971",
	.uid = 0x1378e0,
	.mask = 0xfffff0,
	.features = PHY_BASIC_FEATURES,
	.config = &genphy_config_aneg,
	.startup = &lxt971_startup,
	.shutdown = &genphy_shutdown,
};

int phy_lxt_init(void)
{
	phy_register(&LXT971_driver);

	return 0;
}
Commit	Line	Data
9082eeac AF	1	/*
	2	* LXT PHY drivers
	3	*
1a459660	4	* SPDX-License-Identifier: GPL-2.0+
9082eeac AF	5	*
	6	* Copyright 2010-2011 Freescale Semiconductor, Inc.
	7	* author Andy Fleming
9082eeac AF	8	*/
	9	#include <phy.h>
	10
	11	/* LXT971 Status 2 registers */
	12	#define MIIM_LXT971_SR2 0x11 /* Status Register 2 */
	13	#define MIIM_LXT971_SR2_SPEED_MASK 0x4200
	14	#define MIIM_LXT971_SR2_10HDX 0x0000 /* 10 Mbit half duplex selected */
	15	#define MIIM_LXT971_SR2_10FDX 0x0200 /* 10 Mbit full duplex selected */
	16	#define MIIM_LXT971_SR2_100HDX 0x4000 /* 100 Mbit half duplex selected */
	17	#define MIIM_LXT971_SR2_100FDX 0x4200 /* 100 Mbit full duplex selected */
	18
	19
	20	/* LXT971 */
	21	static int lxt971_parse_status(struct phy_device *phydev)
	22	{
	23	int mii_reg;
	24	int speed;
	25
	26	mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_LXT971_SR2);
	27	speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;
	28
	29	switch (speed) {
	30	case MIIM_LXT971_SR2_10HDX:
	31	phydev->speed = SPEED_10;
	32	phydev->duplex = DUPLEX_HALF;
	33	break;
	34	case MIIM_LXT971_SR2_10FDX:
	35	phydev->speed = SPEED_10;
	36	phydev->duplex = DUPLEX_FULL;
	37	break;
	38	case MIIM_LXT971_SR2_100HDX:
	39	phydev->speed = SPEED_100;
	40	phydev->duplex = DUPLEX_HALF;
	41	break;
	42	default:
	43	phydev->speed = SPEED_100;
	44	phydev->duplex = DUPLEX_FULL;
	45	}
	46
	47	return 0;
	48	}
	49
	50	static int lxt971_startup(struct phy_device *phydev)
	51	{
	52	genphy_update_link(phydev);
	53	lxt971_parse_status(phydev);
	54
	55	return 0;
	56	}
	57
	58	static struct phy_driver LXT971_driver = {
	59	.name = "LXT971",
	60	.uid = 0x1378e0,
	61	.mask = 0xfffff0,
	62	.features = PHY_BASIC_FEATURES,
	63	.config = &genphy_config_aneg,
	64	.startup = &lxt971_startup,
	65	.shutdown = &genphy_shutdown,
	66	};
	67
	68	int phy_lxt_init(void)
	69	{
	70	phy_register(&LXT971_driver);
	71
72	return 0;
73	}