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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;
}
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