ppc4xx: Add Io and IoCon 405EP board support

Board support for the Guntermann & Drunck CATCenter Io.
Board support for the Guntermann & Drunck IoCon.

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>

9 files changed, 1037 insertions, 0 deletions

diff --git a/board/gdsys/405ep/405ep.c b/board/gdsys/405ep/405ep.c
new file mode 100644
index 0000000..d3bd233
--- /dev/null
+++ b/board/gdsys/405ep/405ep.c
@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * 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 <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/ppc4xx-gpio.h>
+
+#include "../common/fpga.h"
+
+#define LATCH0_BASE (CONFIG_SYS_LATCH_BASE)
+#define LATCH1_BASE (CONFIG_SYS_LATCH_BASE + 0x100)
+#define LATCH2_BASE (CONFIG_SYS_LATCH_BASE + 0x200)
+
+#define REFLECTION_TESTPATTERN 0xdede
+#define REFLECTION_TESTPATTERN_INV (~REFLECTION_TESTPATTERN & 0xffff)
+
+int board_early_init_f(void)
+{
+	mtdcr(UIC0SR, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr(UIC0ER, 0x00000000);	/* disable all ints */
+	mtdcr(UIC0CR, 0x00000000);	/* set all to be non-critical */
+	mtdcr(UIC0PR, 0xFFFFFF80);	/* set int polarities */
+	mtdcr(UIC0TR, 0x10000000);	/* set int trigger levels */
+	mtdcr(UIC0VCR, 0x00000001);	/* set vect base=0,INT0 highest prio */
+	mtdcr(UIC0SR, 0xFFFFFFFF);	/* clear all ints */
+
+	/*
+	 * EBC Configuration Register: set ready timeout to 512 ebc-clks
+	 * -> ca. 15 us
+	 */
+	mtebc(EBC0_CFG, 0xa8400000);	/* ebc always driven */
+
+	/*
+	 * setup io-latches for reset
+	 */
+	out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_RESET);
+	out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_RESET);
+
+	/*
+	 * set "startup-finished"-gpios
+	 */
+	gpio_write_bit(21, 0);
+	gpio_write_bit(22, 1);
+
+	/*
+	 * wait for fpga-done
+	 * fail ungraceful if fpga is not configuring properly
+	 */
+	while (!(in_le16((void *)LATCH2_BASE) & 0x0010))
+		;
+
+	/*
+	 * setup io-latches for boot (stop reset)
+	 */
+	udelay(10);
+	out_le16((void *)LATCH0_BASE, CONFIG_SYS_LATCH0_BOOT);
+	out_le16((void *)LATCH1_BASE, CONFIG_SYS_LATCH1_BOOT);
+
+	/*
+	 * wait for fpga out of reset
+	 * fail ungraceful if fpga is not working properly
+	 */
+	while (1) {
+		fpga_set_reg(CONFIG_SYS_FPGA_RFL_LOW, REFLECTION_TESTPATTERN);
+		if (fpga_get_reg(CONFIG_SYS_FPGA_RFL_HIGH) ==
+			REFLECTION_TESTPATTERN_INV)
+			break;
+	}
+
+	return 0;
+}
diff --git a/board/gdsys/405ep/Makefile b/board/gdsys/405ep/Makefile
new file mode 100644
index 0000000..13dff52
--- /dev/null
+++ b/board/gdsys/405ep/Makefile
@@ -0,0 +1,54 @@
+#
+# (C) Copyright 2007
+# Stefan Roese, DENX Software Engineering, sr@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).a
+
+COBJS-$(CONFIG_IO) += io.o
+COBJS-$(CONFIG_IOCON) += iocon.o
+
+COBJS   := $(BOARD).o $(COBJS-y)
+SOBJS   =
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/gdsys/405ep/io.c b/board/gdsys/405ep/io.c
new file mode 100644
index 0000000..80877b6
--- /dev/null
+++ b/board/gdsys/405ep/io.c
@@ -0,0 +1,181 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * 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 <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/ppc4xx-gpio.h>
+
+#include <miiphy.h>
+
+#include "../common/fpga.h"
+
+#define PHYREG_CONTROL				0
+#define PHYREG_PAGE_ADDRESS			22
+#define PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1	16
+#define PHYREG_PG2_COPPER_SPECIFIC_CONTROL_2	26
+
+enum {
+	REG_VERSIONS = 0x0002,
+	REG_FPGA_FEATURES = 0x0004,
+	REG_FPGA_VERSION = 0x0006,
+	REG_QUAD_SERDES_RESET = 0x0012,
+};
+
+enum {
+	UNITTYPE_CCD_SWITCH = 1,
+};
+
+enum {
+	HWVER_100 = 0,
+	HWVER_110 = 1,
+	HWVER_121 = 2,
+	HWVER_122 = 3,
+};
+
+int configure_gbit_phy(unsigned char addr)
+{
+	unsigned short value;
+
+	/* select page 2 */
+	if (miiphy_write(CONFIG_SYS_GBIT_MII_BUSNAME, addr,
+		PHYREG_PAGE_ADDRESS, 0x0002))
+		goto err_out;
+	/* disable SGMII autonegotiation */
+	if (miiphy_write(CONFIG_SYS_GBIT_MII_BUSNAME, addr,
+		PHYREG_PG2_COPPER_SPECIFIC_CONTROL_2, 0x800a))
+		goto err_out;
+	/* select page 0 */
+	if (miiphy_write(CONFIG_SYS_GBIT_MII_BUSNAME, addr,
+		PHYREG_PAGE_ADDRESS, 0x0000))
+		goto err_out;
+	/* switch from powerdown to normal operation */
+	if (miiphy_read(CONFIG_SYS_GBIT_MII_BUSNAME, addr,
+		PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1, &value))
+		goto err_out;
+	if (miiphy_write(CONFIG_SYS_GBIT_MII_BUSNAME, addr,
+		PHYREG_PG0_COPPER_SPECIFIC_CONTROL_1, value & ~0x0004))
+		goto err_out;
+	/* reset phy so settings take effect */
+	if (miiphy_write(CONFIG_SYS_GBIT_MII_BUSNAME, addr,
+		PHYREG_CONTROL, 0x9140))
+		goto err_out;
+
+	return 0;
+
+err_out:
+	printf("Error writing to the PHY addr=%02x\n", addr);
+	return -1;
+}
+
+/*
+ * Check Board Identity:
+ */
+int checkboard(void)
+{
+	char *s = getenv("serial#");
+	u16 versions = fpga_get_reg(REG_VERSIONS);
+	u16 fpga_version = fpga_get_reg(REG_FPGA_VERSION);
+	u16 fpga_features = fpga_get_reg(REG_FPGA_FEATURES);
+	unsigned unit_type;
+	unsigned hardware_version;
+	unsigned feature_channels;
+	unsigned feature_expansion;
+
+	unit_type = (versions & 0xf000) >> 12;
+	hardware_version = versions & 0x000f;
+	feature_channels = fpga_features & 0x007f;
+	feature_expansion = fpga_features & (1<<15);
+
+	printf("Board: ");
+
+	printf("CATCenter Io");
+
+	if (s != NULL) {
+		puts(", serial# ");
+		puts(s);
+	}
+	puts("\n       ");
+
+	switch (unit_type) {
+	case UNITTYPE_CCD_SWITCH:
+		printf("CCD-Switch");
+		break;
+
+	default:
+		printf("UnitType %d(not supported)", unit_type);
+		break;
+	}
+
+	switch (hardware_version) {
+	case HWVER_100:
+		printf(" HW-Ver 1.00\n");
+		break;
+
+	case HWVER_110:
+		printf(" HW-Ver 1.10\n");
+		break;
+
+	case HWVER_121:
+		printf(" HW-Ver 1.21\n");
+		break;
+
+	case HWVER_122:
+		printf(" HW-Ver 1.22\n");
+		break;
+
+	default:
+		printf(" HW-Ver %d(not supported)\n",
+		       hardware_version);
+		break;
+	}
+
+	printf("       FPGA V %d.%02d, features:",
+		fpga_version / 100, fpga_version % 100);
+
+	printf(" %d channel(s)", feature_channels);
+
+	printf(", expansion %ssupported\n", feature_expansion ? "" : "un");
+
+	return 0;
+}
+
+/*
+ * setup Gbit PHYs
+ */
+int last_stage_init(void)
+{
+	unsigned int k;
+
+	miiphy_register(CONFIG_SYS_GBIT_MII_BUSNAME,
+		bb_miiphy_read, bb_miiphy_write);
+
+	for (k = 0; k < 32; ++k)
+		configure_gbit_phy(k);
+
+	/* take fpga serdes blocks out of reset */
+	fpga_set_reg(REG_QUAD_SERDES_RESET, 0);
+
+	return 0;
+}
diff --git a/board/gdsys/405ep/iocon.c b/board/gdsys/405ep/iocon.c
new file mode 100644
index 0000000..ecd6cb2
--- /dev/null
+++ b/board/gdsys/405ep/iocon.c
@@ -0,0 +1,236 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * 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 <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/ppc4xx-gpio.h>
+
+#include "../common/fpga.h"
+#include "../common/osd.h"
+
+enum {
+	REG_VERSIONS = 0x0002,
+	REG_FPGA_VERSION = 0x0004,
+	REG_FPGA_FEATURES = 0x0006,
+};
+
+enum {
+	UNITTYPE_MAIN_SERVER = 0,
+	UNITTYPE_MAIN_USER = 1,
+	UNITTYPE_VIDEO_SERVER = 2,
+	UNITTYPE_VIDEO_USER = 3,
+};
+
+enum {
+	HWVER_100 = 0,
+	HWVER_104 = 1,
+	HWVER_110 = 2,
+};
+
+enum {
+	COMPRESSION_NONE = 0,
+	COMPRESSION_TYPE1_DELTA,
+};
+
+enum {
+	AUDIO_NONE = 0,
+	AUDIO_TX = 1,
+	AUDIO_RX = 2,
+	AUDIO_RXTX = 3,
+};
+
+enum {
+	SYSCLK_147456 = 0,
+};
+
+enum {
+	RAM_DDR2_32 = 0,
+};
+
+/*
+ * Check Board Identity:
+ */
+int checkboard(void)
+{
+	char *s = getenv("serial#");
+	u16 versions = fpga_get_reg(REG_VERSIONS);
+	u16 fpga_version = fpga_get_reg(REG_FPGA_VERSION);
+	u16 fpga_features = fpga_get_reg(REG_FPGA_FEATURES);
+	unsigned unit_type;
+	unsigned hardware_version;
+	unsigned feature_compression;
+	unsigned feature_osd;
+	unsigned feature_audio;
+	unsigned feature_sysclock;
+	unsigned feature_ramconfig;
+	unsigned feature_carriers;
+	unsigned feature_video_channels;
+
+	unit_type = (versions & 0xf000) >> 12;
+	hardware_version = versions & 0x000f;
+	feature_compression = (fpga_features & 0xe000) >> 13;
+	feature_osd = fpga_features & (1<<11);
+	feature_audio = (fpga_features & 0x0600) >> 9;
+	feature_sysclock = (fpga_features & 0x0180) >> 7;
+	feature_ramconfig = (fpga_features & 0x0060) >> 5;
+	feature_carriers = (fpga_features & 0x000c) >> 2;
+	feature_video_channels = fpga_features & 0x0003;
+
+	printf("Board: ");
+
+	printf("IoCon");
+
+	if (s != NULL) {
+		puts(", serial# ");
+		puts(s);
+	}
+	puts("\n       ");
+
+	switch (unit_type) {
+	case UNITTYPE_MAIN_USER:
+		printf("Mainchannel");
+		break;
+
+	case UNITTYPE_VIDEO_USER:
+		printf("Videochannel");
+		break;
+
+	default:
+		printf("UnitType %d(not supported)", unit_type);
+		break;
+	}
+
+	switch (hardware_version) {
+	case HWVER_100:
+		printf(" HW-Ver 1.00\n");
+		break;
+
+	case HWVER_104:
+		printf(" HW-Ver 1.04\n");
+		break;
+
+	case HWVER_110:
+		printf(" HW-Ver 1.10\n");
+		break;
+
+	default:
+		printf(" HW-Ver %d(not supported)\n",
+		       hardware_version);
+		break;
+	}
+
+	printf("       FPGA V %d.%02d, features:",
+		fpga_version / 100, fpga_version % 100);
+
+
+	switch (feature_compression) {
+	case COMPRESSION_NONE:
+		printf(" no compression");
+		break;
+
+	case COMPRESSION_TYPE1_DELTA:
+		printf(" type1-deltacompression");
+		break;
+
+	default:
+		printf(" compression %d(not supported)", feature_compression);
+		break;
+	}
+
+	printf(", %sosd", feature_osd ? "" : "no ");
+
+	switch (feature_audio) {
+	case AUDIO_NONE:
+		printf(", no audio");
+		break;
+
+	case AUDIO_TX:
+		printf(", audio tx");
+		break;
+
+	case AUDIO_RX:
+		printf(", audio rx");
+		break;
+
+	case AUDIO_RXTX:
+		printf(", audio rx+tx");
+		break;
+
+	default:
+		printf(", audio %d(not supported)", feature_audio);
+		break;
+	}
+
+	puts(",\n       ");
+
+	switch (feature_sysclock) {
+	case SYSCLK_147456:
+		printf("clock 147.456 MHz");
+		break;
+
+	default:
+		printf("clock %d(not supported)", feature_sysclock);
+		break;
+	}
+
+	switch (feature_ramconfig) {
+	case RAM_DDR2_32:
+		printf(", RAM 32 bit DDR2");
+		break;
+
+	default:
+		printf(", RAM %d(not supported)", feature_ramconfig);
+		break;
+	}
+
+	printf(", %d carrier(s)", feature_carriers);
+
+	printf(", %d video channel(s)\n", feature_video_channels);
+
+	return 0;
+}
+
+int last_stage_init(void)
+{
+	return osd_probe();
+}
+
+/*
+ * provide access to fpga gpios (for I2C bitbang)
+ */
+void fpga_gpio_set(int pin)
+{
+	out_le16((void *)(CONFIG_SYS_FPGA_BASE + 0x18), pin);
+}
+
+void fpga_gpio_clear(int pin)
+{
+	out_le16((void *)(CONFIG_SYS_FPGA_BASE + 0x16), pin);
+}
+
+int fpga_gpio_get(int pin)
+{
+	return in_le16((void *)(CONFIG_SYS_FPGA_BASE + 0x14)) & pin;
+}
diff --git a/board/gdsys/common/Makefile b/board/gdsys/common/Makefile
new file mode 100644
index 0000000..93cde5a
--- /dev/null
+++ b/board/gdsys/common/Makefile
@@ -0,0 +1,58 @@
+#
+# (C) Copyright 2007
+# Stefan Roese, DENX Software Engineering, sr@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+ifneq ($(OBJTREE),$(SRCTREE))
+$(shell mkdir -p $(obj)board/$(VENDOR)/common)
+endif
+
+LIB	= $(obj)lib$(VENDOR).a
+
+COBJS-$(CONFIG_IO) += miiphybb.o
+COBJS-$(CONFIG_IOCON) += osd.o
+
+COBJS   := $(COBJS-y)
+SOBJS   =
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/gdsys/common/fpga.h b/board/gdsys/common/fpga.h
new file mode 100644
index 0000000..c1434e7
--- /dev/null
+++ b/board/gdsys/common/fpga.h
@@ -0,0 +1,37 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * 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
+ */
+
+#ifndef _FPGA_H_
+#define _FPGA_H_
+
+static inline u16 fpga_get_reg(unsigned reg)
+{
+	return in_le16((void *)(CONFIG_SYS_FPGA_BASE + reg));
+}
+
+static inline void fpga_set_reg(unsigned reg, u16 val)
+{
+	return out_le16((void *)(CONFIG_SYS_FPGA_BASE + reg), val);
+}
+
+#endif
diff --git a/board/gdsys/common/miiphybb.c b/board/gdsys/common/miiphybb.c
new file mode 100644
index 0000000..e56e966
--- /dev/null
+++ b/board/gdsys/common/miiphybb.c
@@ -0,0 +1,102 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * 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 <miiphy.h>
+
+#include <asm/io.h>
+
+static int io_bb_mii_init(struct bb_miiphy_bus *bus)
+{
+	return 0;
+}
+
+static int io_bb_mdio_active(struct bb_miiphy_bus *bus)
+{
+	out_be32((void *)GPIO0_TCR,
+		in_be32((void *)GPIO0_TCR) | CONFIG_SYS_MDIO_PIN);
+
+	return 0;
+}
+
+static int io_bb_mdio_tristate(struct bb_miiphy_bus *bus)
+{
+	out_be32((void *)GPIO0_TCR,
+		in_be32((void *)GPIO0_TCR) & ~CONFIG_SYS_MDIO_PIN);
+
+	return 0;
+}
+
+static int io_bb_set_mdio(struct bb_miiphy_bus *bus, int v)
+{
+	if (v)
+		out_be32((void *)GPIO0_OR,
+			in_be32((void *)GPIO0_OR) | CONFIG_SYS_MDIO_PIN);
+	else
+		out_be32((void *)GPIO0_OR,
+			in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_MDIO_PIN);
+
+	return 0;
+}
+
+static int io_bb_get_mdio(struct bb_miiphy_bus *bus, int *v)
+{
+	*v = ((in_be32((void *)GPIO0_IR) & CONFIG_SYS_MDIO_PIN) != 0);
+
+	return 0;
+}
+
+static int io_bb_set_mdc(struct bb_miiphy_bus *bus, int v)
+{
+	if (v)
+		out_be32((void *)GPIO0_OR,
+			in_be32((void *)GPIO0_OR) | CONFIG_SYS_MDC_PIN);
+	else
+		out_be32((void *)GPIO0_OR,
+			in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_MDC_PIN);
+
+	return 0;
+}
+
+static int io_bb_delay(struct bb_miiphy_bus *bus)
+{
+	udelay(1);
+
+	return 0;
+}
+
+struct bb_miiphy_bus bb_miiphy_buses[] = {
+	{
+		.name = CONFIG_SYS_GBIT_MII_BUSNAME,
+		.init = io_bb_mii_init,
+		.mdio_active = io_bb_mdio_active,
+		.mdio_tristate = io_bb_mdio_tristate,
+		.set_mdio = io_bb_set_mdio,
+		.get_mdio = io_bb_get_mdio,
+		.set_mdc = io_bb_set_mdc,
+		.delay = io_bb_delay,
+	}
+};
+
+int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
+			  sizeof(bb_miiphy_buses[0]);
diff --git a/board/gdsys/common/osd.c b/board/gdsys/common/osd.c
new file mode 100644
index 0000000..05800ff
--- /dev/null
+++ b/board/gdsys/common/osd.c
@@ -0,0 +1,247 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * 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 <i2c.h>
+#include <asm/io.h>
+
+#include "fpga.h"
+
+#define CH7301_I2C_ADDR 0x75
+
+#define PIXCLK_640_480_60 25180000
+
+#define BASE_WIDTH 32
+#define BASE_HEIGHT 16
+#define BUFSIZE (BASE_WIDTH * BASE_HEIGHT)
+
+enum {
+	REG_CONTROL = 0x0010,
+	REG_MPC3W_CONTROL = 0x001a,
+	REG_VIDEOCONTROL = 0x0042,
+	REG_OSDVERSION = 0x0100,
+	REG_OSDFEATURES = 0x0102,
+	REG_OSDCONTROL = 0x0104,
+	REG_XY_SIZE = 0x0106,
+	REG_VIDEOMEM = 0x0800,
+};
+
+enum {
+	CH7301_CM = 0x1c,		/* Clock Mode Register */
+	CH7301_IC = 0x1d,		/* Input Clock Register */
+	CH7301_GPIO = 0x1e,		/* GPIO Control Register */
+	CH7301_IDF = 0x1f,		/* Input Data Format Register */
+	CH7301_CD = 0x20,		/* Connection Detect Register */
+	CH7301_DC = 0x21,		/* DAC Control Register */
+	CH7301_HPD = 0x23,		/* Hot Plug Detection Register */
+	CH7301_TCTL = 0x31,		/* DVI Control Input Register */
+	CH7301_TPCP = 0x33,		/* DVI PLL Charge Pump Ctrl Register */
+	CH7301_TPD = 0x34,		/* DVI PLL Divide Register */
+	CH7301_TPVT = 0x35,		/* DVI PLL Supply Control Register */
+	CH7301_TPF = 0x36,		/* DVI PLL Filter Register */
+	CH7301_TCT = 0x37,		/* DVI Clock Test Register */
+	CH7301_TSTP = 0x48,		/* Test Pattern Register */
+	CH7301_PM = 0x49,		/* Power Management register */
+	CH7301_VID = 0x4a,		/* Version ID Register */
+	CH7301_DID = 0x4b,		/* Device ID Register */
+	CH7301_DSP = 0x56,		/* DVI Sync polarity Register */
+};
+
+static void mpc92469ac_calc_parameters(unsigned int fout,
+	unsigned int *post_div, unsigned int *feedback_div)
+{
+	unsigned int n = *post_div;
+	unsigned int m = *feedback_div;
+	unsigned int a;
+	unsigned int b = 14745600 / 16;
+
+	if (fout < 50169600)
+		n = 8;
+	else if (fout < 100339199)
+		n = 4;
+	else if (fout < 200678399)
+		n = 2;
+	else
+		n = 1;
+
+	a = fout * n + (b / 2); /* add b/2 for proper rounding */
+
+	m = a / b;
+
+	*post_div = n;
+	*feedback_div = m;
+}
+
+static void mpc92469ac_set(unsigned int fout)
+{
+	unsigned int n;
+	unsigned int m;
+	unsigned int bitval = 0;
+	mpc92469ac_calc_parameters(fout, &n, &m);
+
+	switch (n) {
+	case 1:
+		bitval = 0x00;
+		break;
+	case 2:
+		bitval = 0x01;
+		break;
+	case 4:
+		bitval = 0x02;
+		break;
+	case 8:
+		bitval = 0x03;
+		break;
+	}
+
+	fpga_set_reg(REG_MPC3W_CONTROL, (bitval << 9) | m);
+}
+
+static int osd_write_videomem(unsigned offset, u16 *data, size_t charcount)
+{
+	unsigned int k;
+
+	for (k = 0; k < charcount; ++k) {
+		if (offset + k >= BUFSIZE)
+			return -1;
+		fpga_set_reg(REG_VIDEOMEM + 2 * (offset + k), data[k]);
+	}
+
+	return charcount;
+}
+
+static int osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned x;
+	unsigned y;
+	unsigned charcount;
+	unsigned len;
+	u8 color;
+	unsigned int k;
+	u16 buf[BUFSIZE];
+	char *text;
+
+	if (argc < 5) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	color = simple_strtoul(argv[3], NULL, 16);
+	text = argv[4];
+	charcount = strlen(text);
+	len = (charcount > BUFSIZE) ? BUFSIZE : charcount;
+
+	for (k = 0; k < len; ++k)
+		buf[k] = (text[k] << 8) | color;
+
+	return osd_write_videomem(y * BASE_WIDTH + x, buf, len);
+}
+
+int osd_probe(void)
+{
+	u8 value;
+	u16 version = fpga_get_reg(REG_OSDVERSION);
+	u16 features = fpga_get_reg(REG_OSDFEATURES);
+	unsigned width;
+	unsigned height;
+
+	width = ((features & 0x3f00) >> 8) + 1;
+	height = (features & 0x001f) + 1;
+
+	printf("OSD:   Digital-OSD version %01d.%02d, %d" "x%d characters\n",
+		version/100, version%100, width, height);
+
+	value = i2c_reg_read(CH7301_I2C_ADDR, CH7301_DID);
+	if (value != 0x17) {
+		printf("       Probing CH7301 failed, DID %02x\n", value);
+		return -1;
+	}
+	i2c_reg_write(CH7301_I2C_ADDR, CH7301_TPCP, 0x08);
+	i2c_reg_write(CH7301_I2C_ADDR, CH7301_TPD, 0x16);
+	i2c_reg_write(CH7301_I2C_ADDR, CH7301_TPF, 0x60);
+	i2c_reg_write(CH7301_I2C_ADDR, CH7301_DC, 0x09);
+	i2c_reg_write(CH7301_I2C_ADDR, CH7301_PM, 0xc0);
+
+	mpc92469ac_set(PIXCLK_640_480_60);
+	fpga_set_reg(REG_VIDEOCONTROL, 0x0002);
+	fpga_set_reg(REG_OSDCONTROL, 0x0049);
+
+	fpga_set_reg(REG_XY_SIZE, ((32 - 1) << 8) | (16 - 1));
+
+	return 0;
+}
+
+int osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned x;
+	unsigned y;
+	unsigned k;
+	u16 buffer[BASE_WIDTH];
+	char *rp;
+	u16 *wp = buffer;
+	unsigned count = (argc > 4) ?  simple_strtoul(argv[4], NULL, 16) : 1;
+
+	if ((argc < 4) || (strlen(argv[3]) % 4)) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	rp = argv[3];
+
+
+	while (*rp) {
+		char substr[5];
+
+		memcpy(substr, rp, 4);
+		substr[4] = 0;
+		*wp = simple_strtoul(substr, NULL, 16);
+
+		rp += 4;
+		wp++;
+		if (wp - buffer > BASE_WIDTH)
+			break;
+	}
+
+	for (k = 0; k < count; ++k) {
+		unsigned offset = y * BASE_WIDTH + x + k * (wp - buffer);
+		osd_write_videomem(offset, buffer, wp - buffer);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	osdw, 5, 0, osd_write,
+	"write 16-bit hex encoded buffer to osd memory",
+	"pos_x pos_y buffer count\n"
+);
+
+U_BOOT_CMD(
+	osdp, 5, 0, osd_print,
+	"write ASCII buffer to osd memory",
+	"pos_x pos_y color text\n"
+);
diff --git a/board/gdsys/common/osd.h b/board/gdsys/common/osd.h
new file mode 100644
index 0000000..4431cbc
--- /dev/null
+++ b/board/gdsys/common/osd.h
@@ -0,0 +1,29 @@
+/*
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * 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
+ */
+
+#ifndef _OSD_H_
+#define _OSD_H_
+
+int osd_probe(void);
+
+#endif