tsec: Convert tsec to use PHY Lib

This converts tsec to use the new PHY Lib.  All of the old PHY support
is ripped out.  The old MDIO driver is split off, and placed in
fsl_mdio.c.  The initialization is modified to initialize the MDIO
driver as well.  The powerpc config file is modified to configure PHYLIB
if TSEC_ENET is configured.

Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Detlev Zundel <dzu@denx.de>

1 files changed, 120 insertions, 0 deletions

diff --git a/drivers/net/fsl_mdio.c b/drivers/net/fsl_mdio.c
new file mode 100644
index 0000000..1aab307
--- /dev/null
+++ b/drivers/net/fsl_mdio.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *	Jun-jie Zhang <b18070@freescale.com>
+ *	Mingkai Hu <Mingkai.hu@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <miiphy.h>
+#include <phy.h>
+#include <fsl_mdio.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/fsl_enet.h>
+
+void tsec_local_mdio_write(struct tsec_mii_mng *phyregs, int port_addr,
+		int dev_addr, int regnum, int value)
+{
+	int timeout = 1000000;
+
+	out_be32(&phyregs->miimadd, (port_addr << 8) | (regnum & 0x1f));
+	out_be32(&phyregs->miimcon, value);
+	asm("sync");
+
+	while ((in_be32(&phyregs->miimind) & MIIMIND_BUSY) && timeout--)
+		;
+}
+
+int tsec_local_mdio_read(struct tsec_mii_mng *phyregs, int port_addr,
+		int dev_addr, int regnum)
+{
+	int value;
+	int timeout = 1000000;
+
+	/* Put the address of the phy, and the register
+	 * number into MIIMADD */
+	out_be32(&phyregs->miimadd, (port_addr << 8) | (regnum & 0x1f));
+
+	/* Clear the command register, and wait */
+	out_be32(&phyregs->miimcom, 0);
+	asm("sync");
+
+	/* Initiate a read command, and wait */
+	out_be32(&phyregs->miimcom, MIIMCOM_READ_CYCLE);
+	asm("sync");
+
+	/* Wait for the the indication that the read is done */
+	while ((in_be32(&phyregs->miimind) & (MIIMIND_NOTVALID | MIIMIND_BUSY))
+			&& timeout--)
+		;
+
+	/* Grab the value read from the PHY */
+	value = in_be32(&phyregs->miimstat);
+
+	return value;
+}
+
+static int fsl_pq_mdio_reset(struct mii_dev *bus)
+{
+	struct tsec_mii_mng *regs = bus->priv;
+
+	/* Reset MII (due to new addresses) */
+	out_be32(&regs->miimcfg, MIIMCFG_RESET_MGMT);
+
+	out_be32(&regs->miimcfg, MIIMCFG_INIT_VALUE);
+
+	while (in_be32(&regs->miimind) & MIIMIND_BUSY)
+		;
+
+	return 0;
+}
+
+int tsec_phy_read(struct mii_dev *bus, int addr, int dev_addr, int regnum)
+{
+	struct tsec_mii_mng *phyregs = bus->priv;
+
+	return tsec_local_mdio_read(phyregs, addr, dev_addr, regnum);
+}
+
+int tsec_phy_write(struct mii_dev *bus, int addr, int dev_addr, int regnum,
+			u16 value)
+{
+	struct tsec_mii_mng *phyregs = bus->priv;
+
+	tsec_local_mdio_write(phyregs, addr, dev_addr, regnum, value);
+
+	return 0;
+}
+
+int fsl_pq_mdio_init(bd_t *bis, struct fsl_pq_mdio_info *info)
+{
+	struct mii_dev *bus = mdio_alloc();
+
+	if (!bus) {
+		printf("Failed to allocate FSL MDIO bus\n");
+		return -1;
+	}
+
+	bus->read = tsec_phy_read;
+	bus->write = tsec_phy_write;
+	bus->reset = fsl_pq_mdio_reset;
+	sprintf(bus->name, info->name);
+
+	bus->priv = info->regs;
+
+	return mdio_register(bus);
+}