From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Fleming Subject: [RFC 2/2] phylib: Convert MDIO bitbang to new MDIO 45 format Date: Thu, 22 Apr 2010 23:38:17 -0500 Message-ID: <1271997497-6896-3-git-send-email-afleming@freescale.com> References: <1271997497-6896-1-git-send-email-afleming@freescale.com> <1271997497-6896-2-git-send-email-afleming@freescale.com> Cc: netdev@vger.kernel.org To: davem@davemloft.net Return-path: Received: from az33egw02.freescale.net ([192.88.158.103]:56147 "EHLO az33egw02.freescale.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754885Ab0DWEiV (ORCPT ); Fri, 23 Apr 2010 00:38:21 -0400 In-Reply-To: <1271997497-6896-2-git-send-email-afleming@freescale.com> Sender: netdev-owner@vger.kernel.org List-ID: Now that we've added somewhat more complete MDIO 45 support to the PHY Lib, convert the MDIO bitbang driver to use this new infrastructure. Signed-off-by: Andy Fleming --- drivers/net/phy/mdio-bitbang.c | 23 +++++++++++------------ 1 files changed, 11 insertions(+), 12 deletions(-) diff --git a/drivers/net/phy/mdio-bitbang.c b/drivers/net/phy/mdio-bitbang.c index 2f6f02e..4c0c89b 100644 --- a/drivers/net/phy/mdio-bitbang.c +++ b/drivers/net/phy/mdio-bitbang.c @@ -134,11 +134,10 @@ static void mdiobb_cmd(struct mdiobb_ctrl *ctrl, int op, u8 phy, u8 reg) MII_ADDR_C45 into the address. Theoretically clause 45 and normal devices can exist on the same bus. Normal devices should ignore the MDIO_ADDR phase. */ -static int mdiobb_cmd_addr(struct mdiobb_ctrl *ctrl, int phy, u32 addr) +static void mdiobb_cmd_addr(struct mdiobb_ctrl *ctrl, int phy, int devad, + int reg) { - unsigned int dev_addr = (addr >> 16) & 0x1F; - unsigned int reg = addr & 0xFFFF; - mdiobb_cmd(ctrl, MDIO_C45_ADDR, phy, dev_addr); + mdiobb_cmd(ctrl, MDIO_C45_ADDR, phy, devad); /* send the turnaround (10) */ mdiobb_send_bit(ctrl, 1); @@ -148,8 +147,6 @@ static int mdiobb_cmd_addr(struct mdiobb_ctrl *ctrl, int phy, u32 addr) ctrl->ops->set_mdio_dir(ctrl, 0); mdiobb_get_bit(ctrl); - - return dev_addr; } static int mdiobb_read(struct mii_bus *bus, int phy, int devad, int reg) @@ -157,9 +154,10 @@ static int mdiobb_read(struct mii_bus *bus, int phy, int devad, int reg) struct mdiobb_ctrl *ctrl = bus->priv; int ret, i; - if (reg & MII_ADDR_C45) { - reg = mdiobb_cmd_addr(ctrl, phy, reg); - mdiobb_cmd(ctrl, MDIO_C45_READ, phy, reg); + /* Clause 22 PHYs only use devad = 0, and Clause 45 only use nonzero */ + if (devad) { + mdiobb_cmd_addr(ctrl, phy, devad, reg); + mdiobb_cmd(ctrl, MDIO_C45_READ, phy, devad); } else mdiobb_cmd(ctrl, MDIO_READ, phy, reg); @@ -186,9 +184,10 @@ static int mdiobb_write(struct mii_bus *bus, int phy, int devad, int reg, { struct mdiobb_ctrl *ctrl = bus->priv; - if (reg & MII_ADDR_C45) { - reg = mdiobb_cmd_addr(ctrl, phy, reg); - mdiobb_cmd(ctrl, MDIO_C45_WRITE, phy, reg); + /* Clause 22 PHYs only use devad = 0, and Clause 45 only use nonzero */ + if (devad) { + mdiobb_cmd_addr(ctrl, phy, devad, reg); + mdiobb_cmd(ctrl, MDIO_C45_WRITE, phy, devad); } else mdiobb_cmd(ctrl, MDIO_WRITE, phy, reg); -- 1.6.5.2.g6ff9a