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/*
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* B53 PHY Fixup call
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*
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* Copyright (C) 2013 Jonas Gorski <jogo@openwrt.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/phy.h>
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#define B53_PSEUDO_PHY 0x1e /* Register Access Pseudo PHY */
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#define B53_BRCM_OUI_1 0x0143bc00
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#define B53_BRCM_OUI_2 0x03625c00
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#define B53_BRCM_OUI_3 0x00406000
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static int b53_phy_fixup(struct phy_device *dev)
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{
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struct mii_bus *bus = dev->mdio.bus;
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u32 phy_id;
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if (dev->mdio.addr != B53_PSEUDO_PHY)
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return 0;
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/* read the first port's id */
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phy_id = mdiobus_read(bus, 0, 2) << 16;
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phy_id |= mdiobus_read(bus, 0, 3);
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if ((phy_id & 0xfffffc00) == B53_BRCM_OUI_1 ||
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(phy_id & 0xfffffc00) == B53_BRCM_OUI_2 ||
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(phy_id & 0xfffffc00) == B53_BRCM_OUI_3) {
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dev->phy_id = phy_id;
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}
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return 0;
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}
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int __init b53_phy_fixup_register(void)
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{
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return phy_register_fixup_for_id(PHY_ANY_ID, b53_phy_fixup);
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}
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subsys_initcall(b53_phy_fixup_register);
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