From b9944a77f909e343f930dcbcc597224e65dfcca9 Mon Sep 17 00:00:00 2001 From: Dirk Eibach Date: Wed, 26 Jun 2013 15:55:17 +0200 Subject: mpc85xx: Add gdsys ControlCenter Digital board The gdsys ControlCenter Digital board is based on a Freescale P1022 QorIQ SOC. It boots from SPI-Flash but can be configured to boot from SD-card for factory programming and testing. On board peripherals include: - 2x GbE - Lattice ECP3 FPGA connected via PCIe - mSATA RAID1 - USB host - DisplayPort video output - Atmel TPM Signed-off-by: Dirk Eibach Signed-off-by: Reinhard Pfau Signed-off-by: Andy Fleming --- board/gdsys/common/Makefile | 1 + board/gdsys/common/dp501.c | 107 ++++++++++++++++++++++++++++++++++++++++++++ board/gdsys/common/dp501.h | 30 +++++++++++++ 3 files changed, 138 insertions(+) create mode 100644 board/gdsys/common/dp501.c create mode 100644 board/gdsys/common/dp501.h (limited to 'board/gdsys/common') diff --git a/board/gdsys/common/Makefile b/board/gdsys/common/Makefile index 05dd65df7a..13a9c5dc73 100644 --- a/board/gdsys/common/Makefile +++ b/board/gdsys/common/Makefile @@ -33,6 +33,7 @@ COBJS-$(CONFIG_IO) += miiphybb.o COBJS-$(CONFIG_IO64) += miiphybb.o COBJS-$(CONFIG_IOCON) += osd.o COBJS-$(CONFIG_DLVISION_10G) += osd.o +COBJS-$(CONFIG_CONTROLCENTERD) += dp501.o COBJS := $(COBJS-y) SOBJS = diff --git a/board/gdsys/common/dp501.c b/board/gdsys/common/dp501.c new file mode 100644 index 0000000000..9aa4e3f4bd --- /dev/null +++ b/board/gdsys/common/dp501.c @@ -0,0 +1,107 @@ +/* + * (C) Copyright 2012 + * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc + * + * 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 + */ + +/* Parade Technologies Inc. DP501 DisplayPort DVI/HDMI Transmitter */ + +#include +#include +#include +#include + +static void dp501_setbits(u8 addr, u8 reg, u8 mask) +{ + u8 val; + + val = i2c_reg_read(addr, reg); + setbits_8(&val, mask); + i2c_reg_write(addr, reg, val); +} + +static void dp501_clrbits(u8 addr, u8 reg, u8 mask) +{ + u8 val; + + val = i2c_reg_read(addr, reg); + clrbits_8(&val, mask); + i2c_reg_write(addr, reg, val); +} + +static int dp501_detect_cable_adapter(u8 addr) +{ + u8 val = i2c_reg_read(addr, 0x00); + + return !(val & 0x04); +} + +static void dp501_link_training(u8 addr) +{ + u8 val; + + val = i2c_reg_read(addr, 0x51); + i2c_reg_write(addr, 0x5d, val); /* set link_bw */ + val = i2c_reg_read(addr, 0x52); + i2c_reg_write(addr, 0x5e, val); /* set lane_cnt */ + val = i2c_reg_read(addr, 0x53); + i2c_reg_write(addr, 0x5c, val); /* set downspread_ctl */ + + i2c_reg_write(addr, 0x5f, 0x0d); /* start training */ +} + +void dp501_powerup(u8 addr) +{ + dp501_clrbits(addr, 0x0a, 0x30); /* power on encoder */ + i2c_reg_write(addr, 0x27, 0x30); /* Hardware auto detect DVO timing */ + dp501_setbits(addr, 0x72, 0x80); /* DPCD read enable */ + dp501_setbits(addr, 0x30, 0x20); /* RS polynomial select */ + i2c_reg_write(addr, 0x71, 0x20); /* Enable Aux burst write */ + dp501_setbits(addr, 0x78, 0x30); /* Disable HPD2 IRQ */ + dp501_clrbits(addr, 0x2f, 0x40); /* Link FIFO reset selection */ + i2c_reg_write(addr, 0x24, 0xc0); /* SDR mode 0, ext. H/VSYNC */ + i2c_reg_write(addr + 2, 0x24, 0x02); /* clock input single ended */ + + if (dp501_detect_cable_adapter(addr)) { + printf("DVI/HDMI cable adapter detected\n"); + i2c_reg_write(addr, 0x5e, 0x04); /* enable 4 channel */ + dp501_clrbits(addr, 0x00, 0x08); /* DVI/HDMI HDCP operation */ + } else { + printf("no DVI/HDMI cable adapter detected\n"); + i2c_reg_write(addr + 2, 0x00, 0x18); /* driving strength */ + i2c_reg_write(addr + 2, 0x03, 0x06); /* driving strength */ + i2c_reg_write(addr, 0x2c, 0x00); /* configure N value */ + i2c_reg_write(addr, 0x2d, 0x00); /* configure N value */ + i2c_reg_write(addr, 0x2e, 0x0c); /* configure N value */ + i2c_reg_write(addr, 0x76, 0xff); /* clear all interrupt */ + dp501_setbits(addr, 0x78, 0x03); /* clear all interrupt */ + i2c_reg_write(addr, 0x75, 0xf8); /* aux channel reset */ + i2c_reg_write(addr, 0x75, 0x00); /* clear aux channel reset */ + i2c_reg_write(addr, 0x87, 0x70); /* set retry counter as 7 */ + dp501_setbits(addr, 0x00, 0x08); /* for DP HDCP operation */ + + dp501_link_training(addr); + } +} + +void dp501_powerdown(u8 addr) +{ + dp501_setbits(addr, 0x0a, 0x30); /* power down encoder, standby mode */ +} diff --git a/board/gdsys/common/dp501.h b/board/gdsys/common/dp501.h new file mode 100644 index 0000000000..8dc3215dcf --- /dev/null +++ b/board/gdsys/common/dp501.h @@ -0,0 +1,30 @@ +/* + * (C) Copyright 2012 + * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc + * + * 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 _DP501_H_ +#define _DP501_H_ + +void dp501_powerup(u8 addr); +void dp501_powerdown(u8 addr); + +#endif -- cgit v1.2.1