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-rw-r--r--board/gdsys/405ep/io.c181
1 files changed, 181 insertions, 0 deletions
diff --git a/board/gdsys/405ep/io.c b/board/gdsys/405ep/io.c
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+++ b/board/gdsys/405ep/io.c
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+/*
+ * (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;
+}