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>

1 files changed, 181 insertions, 0 deletions

diff --git a/board/gdsys/405ep/io.c b/board/gdsys/405ep/io.c
new file mode 100644
index 0000000000..80877b61ff
--- /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;
+}