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