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Commit c1075fb7 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

Merge commit 'gcl/gcl-next'

parents dfe218b7 51d9861e
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+4 −0
Original line number Diff line number Diff line
@@ -37,6 +37,10 @@ static void platform_fixups(void)
	 * this can do a simple path lookup.
	 */
	soc = find_node_by_devtype(NULL, "soc");
	if (!soc)
		soc = find_node_by_compatible(NULL, "fsl,mpc5200-immr");
	if (!soc)
		soc = find_node_by_compatible(NULL, "fsl,mpc5200b-immr");
	if (soc) {
		setprop(soc, "bus-frequency", &bd.bi_ipbfreq,
			sizeof(bd.bi_ipbfreq));
+5 −2
Original line number Diff line number Diff line
@@ -99,10 +99,13 @@ mpc5200_setup_xlb_arbiter(void)
	out_be32(&xlb->master_pri_enable, 0xff);
	out_be32(&xlb->master_priority, 0x11111111);

	/* Disable XLB pipelining
	/*
	 * Disable XLB pipelining
	 * (cfr errate 292. We could do this only just before ATA PIO
	 *  transaction and re-enable it afterwards ...)
	 * Not needed on MPC5200B.
	 */
	if ((mfspr(SPRN_SVR) & MPC5200_SVR_MASK) == MPC5200_SVR)
		out_be32(&xlb->config, in_be32(&xlb->config) | MPC52xx_XLB_CFG_PLDIS);

	iounmap(xlb);
+22 −33
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@
 * Driver for the MPC5200 Fast Ethernet Controller - MDIO bus driver
 *
 * Copyright (C) 2007  Domen Puncer, Telargo, Inc.
 * Copyright (C) 2008  Wolfram Sang, Pengutronix
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
@@ -21,58 +22,45 @@ struct mpc52xx_fec_mdio_priv {
	struct mpc52xx_fec __iomem *regs;
};

static int mpc52xx_fec_mdio_read(struct mii_bus *bus, int phy_id, int reg)
static int mpc52xx_fec_mdio_transfer(struct mii_bus *bus, int phy_id,
		int reg, u32 value)
{
	struct mpc52xx_fec_mdio_priv *priv = bus->priv;
	struct mpc52xx_fec __iomem *fec;
	int tries = 100;
	u32 request = FEC_MII_READ_FRAME;

	value |= (phy_id << FEC_MII_DATA_PA_SHIFT) & FEC_MII_DATA_PA_MSK;
	value |= (reg << FEC_MII_DATA_RA_SHIFT) & FEC_MII_DATA_RA_MSK;

	fec = priv->regs;
	out_be32(&fec->ievent, FEC_IEVENT_MII);

	request |= (phy_id << FEC_MII_DATA_PA_SHIFT) & FEC_MII_DATA_PA_MSK;
	request |= (reg << FEC_MII_DATA_RA_SHIFT) & FEC_MII_DATA_RA_MSK;

	out_be32(&priv->regs->mii_data, request);
	out_be32(&priv->regs->mii_data, value);

	/* wait for it to finish, this takes about 23 us on lite5200b */
	while (!(in_be32(&fec->ievent) & FEC_IEVENT_MII) && --tries)
		udelay(5);

	if (tries == 0)
	if (!tries)
		return -ETIMEDOUT;

	return in_be32(&priv->regs->mii_data) & FEC_MII_DATA_DATAMSK;
	return value & FEC_MII_DATA_OP_RD ?
		in_be32(&priv->regs->mii_data) & FEC_MII_DATA_DATAMSK : 0;
}

static int mpc52xx_fec_mdio_write(struct mii_bus *bus, int phy_id, int reg, u16 data)
static int mpc52xx_fec_mdio_read(struct mii_bus *bus, int phy_id, int reg)
{
	struct mpc52xx_fec_mdio_priv *priv = bus->priv;
	struct mpc52xx_fec __iomem *fec;
	u32 value = data;
	int tries = 100;

	fec = priv->regs;
	out_be32(&fec->ievent, FEC_IEVENT_MII);

	value |= FEC_MII_WRITE_FRAME;
	value |= (phy_id << FEC_MII_DATA_PA_SHIFT) & FEC_MII_DATA_PA_MSK;
	value |= (reg << FEC_MII_DATA_RA_SHIFT) & FEC_MII_DATA_RA_MSK;

	out_be32(&priv->regs->mii_data, value);

	/* wait for request to finish */
	while (!(in_be32(&fec->ievent) & FEC_IEVENT_MII) && --tries)
		udelay(5);

	if (tries == 0)
		return -ETIMEDOUT;
	return mpc52xx_fec_mdio_transfer(bus, phy_id, reg, FEC_MII_READ_FRAME);
}

	return 0;
static int mpc52xx_fec_mdio_write(struct mii_bus *bus, int phy_id, int reg,
		u16 data)
{
	return mpc52xx_fec_mdio_transfer(bus, phy_id, reg,
		data | FEC_MII_WRITE_FRAME);
}

static int mpc52xx_fec_mdio_probe(struct of_device *of, const struct of_device_id *match)
static int mpc52xx_fec_mdio_probe(struct of_device *of,
		const struct of_device_id *match)
{
	struct device *dev = &of->dev;
	struct device_node *np = of->node;
@@ -131,7 +119,8 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of, const struct of_device_i
	dev_set_drvdata(dev, bus);

	/* set MII speed */
	out_be32(&priv->regs->mii_speed, ((mpc52xx_find_ipb_freq(of->node) >> 20) / 5) << 1);
	out_be32(&priv->regs->mii_speed,
		((mpc52xx_find_ipb_freq(of->node) >> 20) / 5) << 1);

	/* enable MII interrupt */
	out_be32(&priv->regs->imask, in_be32(&priv->regs->imask) | FEC_IMASK_MII);