diff options
Diffstat (limited to 'target/linux/generic/files/drivers/net/phy/b53/b53_phy_fixup.c')
-rw-r--r-- | target/linux/generic/files/drivers/net/phy/b53/b53_phy_fixup.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/b53/b53_phy_fixup.c b/target/linux/generic/files/drivers/net/phy/b53/b53_phy_fixup.c new file mode 100644 index 0000000000..447f30b649 --- /dev/null +++ b/target/linux/generic/files/drivers/net/phy/b53/b53_phy_fixup.c @@ -0,0 +1,53 @@ +/* + * 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 + +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) { + 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); |