82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/*
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* Amlogic Meson GXL Internal PHY Driver
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*
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* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
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* Copyright (C) 2016 BayLibre, SAS. All rights reserved.
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/phy.h>
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#include <linux/netdevice.h>
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static int meson_gxl_config_init(struct phy_device *phydev)
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{
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/* Enable Analog and DSP register Bank access by */
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phy_write(phydev, 0x14, 0x0000);
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phy_write(phydev, 0x14, 0x0400);
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phy_write(phydev, 0x14, 0x0000);
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phy_write(phydev, 0x14, 0x0400);
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/* Write Analog register 23 */
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phy_write(phydev, 0x17, 0x8E0D);
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phy_write(phydev, 0x14, 0x4417);
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/* Enable fractional PLL */
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phy_write(phydev, 0x17, 0x0005);
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phy_write(phydev, 0x14, 0x5C1B);
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/* Program fraction FR_PLL_DIV1 */
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phy_write(phydev, 0x17, 0x029A);
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phy_write(phydev, 0x14, 0x5C1D);
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/* Program fraction FR_PLL_DIV1 */
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phy_write(phydev, 0x17, 0xAAAA);
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phy_write(phydev, 0x14, 0x5C1C);
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return 0;
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}
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static struct phy_driver meson_gxl_phy[] = {
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{
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.phy_id = 0x01814400,
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.phy_id_mask = 0xfffffff0,
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.name = "Meson GXL Internal PHY",
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.features = PHY_BASIC_FEATURES,
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.flags = PHY_IS_INTERNAL,
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.config_init = meson_gxl_config_init,
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.config_aneg = genphy_config_aneg,
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.aneg_done = genphy_aneg_done,
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.read_status = genphy_read_status,
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.suspend = genphy_suspend,
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.resume = genphy_resume,
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},
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};
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static struct mdio_device_id __maybe_unused meson_gxl_tbl[] = {
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{ 0x01814400, 0xfffffff0 },
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{ }
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};
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module_phy_driver(meson_gxl_phy);
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MODULE_DEVICE_TABLE(mdio, meson_gxl_tbl);
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MODULE_DESCRIPTION("Amlogic Meson GXL Internal PHY driver");
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MODULE_AUTHOR("Baoqi wang");
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MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
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MODULE_LICENSE("GPL");
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