powerpc/85xx: Add FMan ethernet support to P4080DS

Add support for RGMII, SGMII, and XAUI (10Gb) Ethernet on P4080DS.

The board supports add-on cards for SGMII and XAUI functionality.  Which
slots on the board these cards are in is a function of the SERDES option
selected and muxes on the board.

Additionally because of the high-configurablity which MDIO bus one is
connected to is "selected" via an FPGA register.  We create dummy MDIO
bus for the phy layer and hide the mux manipulation in this dummy layer.

Add fman fdt helper function in board common code it'll be used by several
freescale boards that do various muxing of the MDIO signals based on which
controller/interface one is trying to talk to.

Removed CONFIG_SYS_FMAN_FW as its not used anywhere.

Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

3 files changed, 94 insertions, 0 deletions

diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index c47d10d..9bdf45b 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -31,6 +31,7 @@ LIB	= $(obj)libfreescale.o
 
 COBJS-$(CONFIG_FSL_CADMUS)	+= cadmus.o
 COBJS-$(CONFIG_FSL_VIA)		+= cds_via.o
+COBJS-$(CONFIG_FMAN_ENET)	+= fman.o
 COBJS-$(CONFIG_FSL_PIXIS)	+= pixis.o
 COBJS-$(CONFIG_FSL_NGPIXIS)	+= ngpixis.o
 COBJS-$(CONFIG_PQ_MDS_PIB)	+= pq-mds-pib.o
diff --git a/board/freescale/common/fman.c b/board/freescale/common/fman.c
new file mode 100644
index 0000000..8a55fde
--- /dev/null
+++ b/board/freescale/common/fman.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <libfdt.h>
+#include <libfdt_env.h>
+#include <fdt_support.h>
+
+/*
+ * Given the following ...
+ *
+ * 1) A pointer to an Fman Ethernet node (as identified by the 'compat'
+ * compatible string and 'addr' physical address)
+ *
+ * 2) The name of an alias that points to the ethernet-phy node (usually inside
+ * a virtual MDIO node)
+ *
+ * ... update that Ethernet node's phy-handle property to point to the
+ * ethernet-phy node.  This is how we link an Ethernet node to its PHY, so each
+ * PHY in a virtual MDIO node must have an alias.
+ */
+void fdt_set_phy_handle(void *fdt, char *compat, phys_addr_t addr,
+			const char *alias)
+{
+	int offset, ph;
+	const char *path;
+
+	/* Get a path to the node that 'alias' points to */
+	path = fdt_get_alias(fdt, alias);
+	if (path) {
+		/* Get the offset of that node */
+		int off = fdt_path_offset(fdt, path);
+		if (off > 0)
+			ph = fdt_create_phandle(fdt, off);
+		else
+			return;
+	} else {
+		return ;
+	}
+
+	/* failed to create a phandle */
+	if (ph <= 0)
+		return ;
+
+	offset = fdt_node_offset_by_compat_reg(fdt, compat, addr);
+	if (offset > 0)
+		fdt_setprop(fdt, offset, "phy-handle", &ph, sizeof(ph));
+}
diff --git a/board/freescale/common/fman.h b/board/freescale/common/fman.h
new file mode 100644
index 0000000..19ef7c4
--- /dev/null
+++ b/board/freescale/common/fman.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * 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
+ */
+
+#ifndef __FMAN_BOARD_HELPER__
+#define __FMAN_BOARD_HELPER__
+
+void fdt_set_phy_handle(void *fdt, char *compat, phys_addr_t addr,
+			const char *alias);
+
+#endif