siemens/mc_apl5: Add new mainboard variant mc_apl5
This mainboard is based on mc_apl1. In a first step, it contains a copy of mc_apl1 directory with minimum changes. Special adaptations for mc_apl5 mainboard will follow in separate commits. Change-Id: Icdbb116a822ffa7a3bfb7026a5d1164db56a0c46 Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com> Reviewed-on: https://review.coreboot.org/29635 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This commit is contained in:
committed by
Patrick Georgi
parent
7ec15c82f4
commit
5716b4c358
@@ -20,6 +20,7 @@ config VARIANT_DIR
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default "mc_apl2" if BOARD_SIEMENS_MC_APL2
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default "mc_apl2" if BOARD_SIEMENS_MC_APL2
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default "mc_apl3" if BOARD_SIEMENS_MC_APL3
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default "mc_apl3" if BOARD_SIEMENS_MC_APL3
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default "mc_apl4" if BOARD_SIEMENS_MC_APL4
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default "mc_apl4" if BOARD_SIEMENS_MC_APL4
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default "mc_apl5" if BOARD_SIEMENS_MC_APL5
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config DEVICETREE
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config DEVICETREE
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string
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string
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@@ -31,6 +32,7 @@ config MAINBOARD_PART_NUMBER
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default "MC APL2" if BOARD_SIEMENS_MC_APL2
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default "MC APL2" if BOARD_SIEMENS_MC_APL2
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default "MC APL3" if BOARD_SIEMENS_MC_APL3
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default "MC APL3" if BOARD_SIEMENS_MC_APL3
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default "MC APL4" if BOARD_SIEMENS_MC_APL4
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default "MC APL4" if BOARD_SIEMENS_MC_APL4
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default "MC APL5" if BOARD_SIEMENS_MC_APL5
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config MAX_CPUS
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config MAX_CPUS
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int
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int
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@@ -10,6 +10,10 @@ config BOARD_SIEMENS_MC_APL3
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bool "-> MC APL3"
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bool "-> MC APL3"
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select BOARD_SIEMENS_BASEBOARD_MC_APL1
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select BOARD_SIEMENS_BASEBOARD_MC_APL1
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config BOARD_SIEMENS_MC_APL5
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bool "-> MC APL5"
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select BOARD_SIEMENS_BASEBOARD_MC_APL1
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config BOARD_SIEMENS_MC_APL4
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config BOARD_SIEMENS_MC_APL4
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bool "-> MC APL4"
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bool "-> MC APL4"
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select BOARD_SIEMENS_BASEBOARD_MC_APL1
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select BOARD_SIEMENS_BASEBOARD_MC_APL1
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12
src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig
Normal file
12
src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig
Normal file
@@ -0,0 +1,12 @@
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if BOARD_SIEMENS_MC_APL5
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config BOARD_SPECIFIC_OPTIONS
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def_bool y
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select DRIVER_INTEL_I210
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select DRIVERS_I2C_RX6110SA
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select DRIVER_SIEMENS_NC_FPGA
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select NC_FPGA_NOTIFY_CB_READY
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select APL_SKIP_SET_POWER_LIMITS
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endif # BOARD_SIEMENS_MC_APL5
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@@ -0,0 +1,2 @@
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ramstage-y += mainboard.c
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ramstage-y += ptn3460.c
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119
src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb
Normal file
119
src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb
Normal file
@@ -0,0 +1,119 @@
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chip soc/intel/apollolake
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device cpu_cluster 0 on
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device lapic 0 on end
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end
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register "sci_irq" = "SCIS_IRQ10"
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# Disable unused clkreq of PCIe root ports
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register "pcie_rp_clkreq_pin[0]" = "3" # PCIe-PCI-Bridge
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register "pcie_rp_clkreq_pin[1]" = "2" # FPGA
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register "pcie_rp_clkreq_pin[2]" = "0" # MACPHY
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register "pcie_rp_clkreq_pin[3]" = "1" # MACPHY
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register "pcie_rp_clkreq_pin[4]" = "CLKREQ_DISABLED"
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register "pcie_rp_clkreq_pin[5]" = "CLKREQ_DISABLED"
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# EMMC TX DATA Delay 1
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# Refer to EDS-Vol2-22.3.
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# [14:8] steps of delay for HS400, each 125ps.
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# [6:0] steps of delay for SDR104/HS200, each 125ps.
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register "emmc_tx_data_cntl1" = "0x0C16"
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# EMMC TX DATA Delay 2
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# Refer to EDS-Vol2-22.3.
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# [30:24] steps of delay for SDR50, each 125ps.
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# [22:16] steps of delay for DDR50, each 125ps.
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# [14:8] steps of delay for SDR25/HS50, each 125ps.
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# [6:0] steps of delay for SDR12, each 125ps.
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register "emmc_tx_data_cntl2" = "0x28162828"
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# EMMC RX CMD/DATA Delay 1
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# Refer to EDS-Vol2-22.3.
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# [30:24] steps of delay for SDR50, each 125ps.
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# [22:16] steps of delay for DDR50, each 125ps.
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# [14:8] steps of delay for SDR25/HS50, each 125ps.
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# [6:0] steps of delay for SDR12, each 125ps.
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register "emmc_rx_cmd_data_cntl1" = "0x00181717"
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# EMMC RX CMD/DATA Delay 2
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# Refer to EDS-Vol2-22.3.
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# [17:16] stands for Rx Clock before Output Buffer
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# [14:8] steps of delay for Auto Tuning Mode, each 125ps.
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# [6:0] steps of delay for HS200, each 125ps.
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register "emmc_rx_cmd_data_cntl2" = "0x10008"
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# 0:HS400(Default), 1:HS200, 2:DDR50
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register "emmc_host_max_speed" = "2"
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# Intel Common SoC Config
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#+-------------------+---------------------------+
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#| Field | Value |
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#+-------------------+---------------------------+
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#| I2C0 | Proximity Sensor |
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#+-------------------+---------------------------+
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register "common_soc_config" = "{
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.i2c[0] = {
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.speed = I2C_SPEED_STANDARD
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},
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}"
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device domain 0 on
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device pci 00.0 on end # - Host Bridge
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device pci 00.1 off end # - DPTF
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device pci 00.2 off end # - NPK
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device pci 02.0 on end # - Gen - Display
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device pci 03.0 off end # - Iunit
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device pci 0d.0 on end # - P2SB
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device pci 0d.1 off end # - PMC
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device pci 0d.2 on end # - SPI
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device pci 0d.3 off end # - Shared SRAM
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device pci 0e.0 off end # - Audio
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device pci 11.0 on end # - ISH
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device pci 12.0 on end # - SATA
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device pci 13.0 on end # - RP 2 - PCIe A 0 - MACPHY
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device pci 13.1 on end # - RP 3 - PCIe A 1 - MACPHY
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device pci 13.2 off end # - RP 4 - PCIe-A 2
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device pci 13.3 off end # - RP 5 - PCIe-A 3
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device pci 14.0 on end # - RP 0 - PCIe-B 0 - PCIe-PCI-Bridge
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device pci 14.1 on end # - RP 1 - PCIe-B 1 - FPGA
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device pci 15.0 on end # - XHCI
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device pci 15.1 off end # - XDCI
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device pci 16.0 on # - I2C 0
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# Enable external RTC chip
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chip drivers/i2c/rx6110sa
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register "pmon_sampling" = "PMON_SAMPL_256_MS"
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register "bks_on" = "0"
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register "bks_off" = "1"
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register "iocut_en" = "1"
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register "set_user_date" = "1"
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register "user_year" = "04"
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register "user_month" = "07"
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register "user_day" = "01"
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register "user_weekday" = "4"
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device i2c 0x32 on end # RTC RX6110 SA
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end
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end
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device pci 16.1 off end # - I2C 1
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device pci 16.2 off end # - I2C 2
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device pci 16.3 off end # - I2C 3
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device pci 17.0 off end # - I2C 4
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device pci 17.1 off end # - I2C 5
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device pci 17.2 off end # - I2C 6
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device pci 17.3 on end # - I2C 7
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device pci 18.0 on end # - UART 0
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device pci 18.1 on end # - UART 1
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device pci 18.2 on end # - UART 2
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device pci 18.3 on end # - UART 3
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device pci 19.0 off end # - SPI 0
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device pci 19.1 off end # - SPI 1
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device pci 19.2 off end # - SPI 2
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device pci 1a.0 off end # - PWM
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device pci 1b.0 off end # - SDCARD
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device pci 1c.0 on end # - eMMC
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device pci 1d.0 off end # - UFS
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device pci 1e.0 off end # - SDIO
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device pci 1f.0 on end # - LPC
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device pci 1f.1 on end # - SMBUS
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end
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end
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@@ -0,0 +1,91 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2014-2017 Siemens AG
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef PTN3460_H_
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#define PTN3460_H_
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#include <stdint.h>
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#define PTN_SLAVE_ADR 0x20
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#define PTN_I2C_CONTROLLER 0
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#define PTN_EDID_OFF 0x00
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#define PTN_EDID_LEN 0x80
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#define PTN_CONFIG_OFF 0x80
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#define PTN_FLASH_CFG_OFF 0xE8
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#define PTN_FLASH_CFG_LEN 0x04
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#define PTN_MAX_EDID_NUM 6
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/* Define some error codes that can be used. */
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#define PTN_NO_ERROR 0x00000000
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#define PTN_BUS_ERROR 0x10000000
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#define PTN_INVALID_EDID 0x20000000
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struct ptn_3460_config {
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/* DiplayPort interface control. */
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uint8_t dp_interface_ctrl;
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/* LVDS interface control register 1. */
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uint8_t lvds_interface_ctrl1;
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/* LVDS interface control register 2. */
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uint8_t lvds_interface_ctrl2;
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/* LVDS interface control register 3. */
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uint8_t lvds_interface_ctrl3;
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/* Select which EDID-block is emulated. */
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uint8_t edid_rom_emulation;
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/* Select which EDID block to map to 0..0x7F. */
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uint8_t edid_rom_access_ctrl;
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/* Smallest PWM frequency for back light. */
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uint8_t pwm_min[3];
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/* Biggest PWM frequency for back light. */
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uint8_t pwm_max[3];
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/* Fast link training control register. */
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uint8_t fast_link_ctrl;
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/* Pin configuration control register 1. */
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uint8_t pin_cfg_ctrl1;
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/* Pin configuration control register 2. */
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uint8_t pin_cfg_ctrl2;
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/* Default PWM bit count in DPCD register. */
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uint8_t pwm_default;
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/* Current PWM bit count in DPCD register. */
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uint16_t pwm_value;
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/* Default PWM frequency in DPCD register. */
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uint8_t pwm_default_freq;
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/* Panel T3 timing value. */
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uint8_t t3_timing;
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/* Panel T12 timing value. */
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uint8_t t12_timing;
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/* Back light control register. */
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uint8_t backlight_ctrl;
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/* Panel T2 delay. */
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uint8_t t2_delay;
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/* Panel T4 timing value. */
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uint8_t t4_timing;
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/* Panel T5 delay. */
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uint8_t t5_delay;
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} __packed;
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struct ptn_3460_flash {
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/* Flash command (erase or erase and flash). */
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uint8_t cmd;
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/* Magic number needed by the flash algorithm. */
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uint16_t magic;
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/* Trigger for starting flash operation. */
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uint8_t trigger;
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} __packed;
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int ptn3460_init(const char *hwi_block);
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int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]);
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int ptn_select_edid(uint8_t edid_num);
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#endif /* PTN3460_H_ */
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110
src/mainboard/siemens/mc_apl1/variants/mc_apl5/mainboard.c
Normal file
110
src/mainboard/siemens/mc_apl1/variants/mc_apl5/mainboard.c
Normal file
@@ -0,0 +1,110 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2018 Siemens AG
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <bootstate.h>
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#include <console/console.h>
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#include <device/pci_ids.h>
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#include <device/pci_ops.h>
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#include <gpio.h>
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#include <hwilib.h>
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#include <intelblocks/lpc_lib.h>
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#include <intelblocks/pcr.h>
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#include <soc/pcr_ids.h>
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#include <timer.h>
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#include <timestamp.h>
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#include <baseboard/variants.h>
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#include <variant/ptn3460.h>
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#define TX_DWORD3 0xa8c
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void variant_mainboard_final(void)
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{
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int status;
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struct device *dev = NULL;
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/*
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* Set up the DP2LVDS converter.
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* ptn3460_init() may only be executed after i2c bus init.
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*/
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status = ptn3460_init("hwinfo.hex");
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if (status)
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printk(BIOS_ERR, "LCD: Set up PTN with status 0x%x\n", status);
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else
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printk(BIOS_INFO, "LCD: Set up PTN was successful.\n");
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/*
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* PIR6 register mapping for PCIe root ports
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* INTA#->PIRQB#, INTB#->PIRQC#, INTC#->PIRQD#, INTD#-> PIRQA#
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*/
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pcr_write16(PID_ITSS, 0x314c, 0x0321);
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/* Disable clock outputs 1-5 (CLKOUT) for XIO2001 PCIe to PCI Bridge. */
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dev = dev_find_device(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2001, 0);
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if (dev)
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pci_write_config8(dev, 0xd8, 0x3e);
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/* Enable CLKRUN_EN for power gating LPC */
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lpc_enable_pci_clk_cntl();
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/*
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* Enable LPC PCE (Power Control Enable) by setting IOSF-SB port 0xD2
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* offset 0x341D bit3 and bit0.
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* Enable LPC CCE (Clock Control Enable) by setting IOSF-SB port 0xD2
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* offset 0x341C bit [3:0].
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*/
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||||||
|
pcr_or32(PID_LPC, PCR_LPC_PRC, (PCR_LPC_CCE_EN | PCR_LPC_PCE_EN));
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Correct the SATA transmit signal via the High Speed I/O Transmit
|
||||||
|
* Control Register 3.
|
||||||
|
* Bit [23:16] set the output voltage swing for TX line.
|
||||||
|
* The value 0x4a sets the swing level to 0.58 V.
|
||||||
|
*/
|
||||||
|
pcr_rmw32(PID_MODPHY, TX_DWORD3, (0x00 << 16), (0x4a << 16));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void wait_for_legacy_dev(void *unused)
|
||||||
|
{
|
||||||
|
uint32_t legacy_delay, us_since_boot;
|
||||||
|
struct stopwatch sw;
|
||||||
|
|
||||||
|
/* Open main hwinfo block. */
|
||||||
|
if (hwilib_find_blocks("hwinfo.hex") != CB_SUCCESS)
|
||||||
|
return;
|
||||||
|
|
||||||
|
/* Get legacy delay parameter from hwinfo. */
|
||||||
|
if (hwilib_get_field(LegacyDelay, (uint8_t *) &legacy_delay,
|
||||||
|
sizeof(legacy_delay)) != sizeof(legacy_delay))
|
||||||
|
return;
|
||||||
|
|
||||||
|
us_since_boot = get_us_since_boot();
|
||||||
|
/* No need to wait if the time since boot is already long enough.*/
|
||||||
|
if (us_since_boot > legacy_delay)
|
||||||
|
return;
|
||||||
|
stopwatch_init_msecs_expire(&sw, (legacy_delay - us_since_boot) / 1000);
|
||||||
|
printk(BIOS_NOTICE, "Wait remaining %d of %d us for legacy devices...",
|
||||||
|
legacy_delay - us_since_boot, legacy_delay);
|
||||||
|
stopwatch_wait_until_expired(&sw);
|
||||||
|
printk(BIOS_NOTICE, "done!\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
static void finalize_boot(void *unused)
|
||||||
|
{
|
||||||
|
/* Set coreboot ready LED. */
|
||||||
|
gpio_output(CNV_RGI_DT, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
BOOT_STATE_INIT_ENTRY(BS_DEV_ENUMERATE, BS_ON_ENTRY, wait_for_legacy_dev, NULL);
|
||||||
|
BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_BOOT, BS_ON_ENTRY, finalize_boot, NULL);
|
177
src/mainboard/siemens/mc_apl1/variants/mc_apl5/ptn3460.c
Normal file
177
src/mainboard/siemens/mc_apl1/variants/mc_apl5/ptn3460.c
Normal file
@@ -0,0 +1,177 @@
|
|||||||
|
/*
|
||||||
|
* This file is part of the coreboot project.
|
||||||
|
*
|
||||||
|
* Copyright (C) 2014-2017 Siemens AG
|
||||||
|
*
|
||||||
|
* 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; version 2 of the License.
|
||||||
|
*
|
||||||
|
* 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <console/console.h>
|
||||||
|
#include <lib.h>
|
||||||
|
#include <hwilib.h>
|
||||||
|
#include <device/i2c_simple.h>
|
||||||
|
#include <variant/ptn3460.h>
|
||||||
|
|
||||||
|
/**
|
||||||
|
* This function sets up the DP2LVDS-converter to be used with the appropriate
|
||||||
|
* lcd panel.
|
||||||
|
*
|
||||||
|
* @param *hwi_block Filename in CBFS of the block to use as HW-Info.
|
||||||
|
* @return 0 on success or HWI-Data/PTN error code.
|
||||||
|
*/
|
||||||
|
int ptn3460_init(const char *hwi_block)
|
||||||
|
{
|
||||||
|
struct ptn_3460_config cfg;
|
||||||
|
int status;
|
||||||
|
uint8_t disp_con = 0, color_depth = 0;
|
||||||
|
uint8_t edid_data[PTN_EDID_LEN];
|
||||||
|
int i;
|
||||||
|
|
||||||
|
if (!hwi_block || hwilib_find_blocks(hwi_block) != CB_SUCCESS) {
|
||||||
|
printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n",
|
||||||
|
hwi_block);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
/* Get all needed information from hwinfo block. */
|
||||||
|
if (hwilib_get_field(Edid, edid_data, sizeof(edid_data)) !=
|
||||||
|
sizeof(edid_data)) {
|
||||||
|
printk(BIOS_ERR, "LCD: No EDID data available in %s\n",
|
||||||
|
hwi_block);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
if ((hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) !=
|
||||||
|
sizeof(disp_con))) {
|
||||||
|
printk(BIOS_ERR, "LCD: Missing panel features from %s\n",
|
||||||
|
hwi_block);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
if (hwilib_get_field(PF_Color_Depth, &color_depth, sizeof(color_depth))
|
||||||
|
!= sizeof(color_depth)) {
|
||||||
|
printk(BIOS_ERR, "LCD: Missing panel features from %s\n",
|
||||||
|
hwi_block);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* Here, all the desired information for setting up DP2LVDS converter
|
||||||
|
* is present. Inside the converter, table 6 will be used for the
|
||||||
|
* timings.
|
||||||
|
*/
|
||||||
|
status = ptn3460_write_edid(6, edid_data);
|
||||||
|
if (status)
|
||||||
|
return status;
|
||||||
|
/* Select this table to be emulated. */
|
||||||
|
ptn_select_edid(6);
|
||||||
|
/* Read PTN configuration data. */
|
||||||
|
status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR,
|
||||||
|
PTN_CONFIG_OFF, (uint8_t *)&cfg,
|
||||||
|
sizeof(cfg));
|
||||||
|
if (status)
|
||||||
|
return (PTN_BUS_ERROR | status);
|
||||||
|
/* Set up configuration data according to the hwinfo block we get. */
|
||||||
|
cfg.dp_interface_ctrl = 0;
|
||||||
|
cfg.lvds_interface_ctrl1 = 0x00;
|
||||||
|
if (disp_con == PF_DISPLCON_LVDS_DUAL)
|
||||||
|
/* Turn on dual LVDS lane and clock. */
|
||||||
|
cfg.lvds_interface_ctrl1 |= 0x0b;
|
||||||
|
if (color_depth == PF_COLOR_DEPTH_6BIT)
|
||||||
|
/* Use 18 bits per pixel. */
|
||||||
|
cfg.lvds_interface_ctrl1 |= 0x20;
|
||||||
|
|
||||||
|
/* 1 % clock spreading, 300 mV LVDS swing. */
|
||||||
|
cfg.lvds_interface_ctrl2 = 0x13;
|
||||||
|
/* No LVDS signal swap. */
|
||||||
|
cfg.lvds_interface_ctrl3 = 0x00;
|
||||||
|
/* Delay T2 (VDD to LVDS active) by 16 ms. */
|
||||||
|
cfg.t2_delay = 1;
|
||||||
|
/* 250 ms from LVDS to backlight active. */
|
||||||
|
cfg.t3_timing = 10;
|
||||||
|
/* 1 second re-power delay. */
|
||||||
|
cfg.t12_timing = 20;
|
||||||
|
/* 150 ms backlight off to LVDS inactive. */
|
||||||
|
cfg.t4_timing = 3;
|
||||||
|
/* Delay T5 (LVDS to VDD inactive) by 16 ms. */
|
||||||
|
cfg.t5_delay = 1;
|
||||||
|
/* Enable backlight control. */
|
||||||
|
cfg.backlight_ctrl = 0;
|
||||||
|
|
||||||
|
/* Write back configuration data to PTN3460. */
|
||||||
|
for (i = 0; i < sizeof(struct ptn_3460_config); i++) {
|
||||||
|
status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR,
|
||||||
|
PTN_CONFIG_OFF+i,
|
||||||
|
*(((uint8_t *)&cfg)+i));
|
||||||
|
if (status)
|
||||||
|
return (PTN_BUS_ERROR | status);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Read PTN configuration data. */
|
||||||
|
status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR,
|
||||||
|
PTN_CONFIG_OFF, (uint8_t *)&cfg, sizeof(cfg));
|
||||||
|
if (status)
|
||||||
|
return (PTN_BUS_ERROR | status);
|
||||||
|
|
||||||
|
return PTN_NO_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* This function writes one Extended Display Identification Data (EDID)
|
||||||
|
* structure to PTN3460.
|
||||||
|
*
|
||||||
|
* @param edid_num Number of EDID that must be written (0..6).
|
||||||
|
* @param *data Pointer to a buffer where data to write is stored in.
|
||||||
|
* @return 0 on success or error code.
|
||||||
|
*/
|
||||||
|
int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN])
|
||||||
|
{
|
||||||
|
int status;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
if (edid_num > PTN_MAX_EDID_NUM)
|
||||||
|
return PTN_INVALID_EDID;
|
||||||
|
|
||||||
|
/* First enable access to the desired EDID table. */
|
||||||
|
status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR,
|
||||||
|
PTN_CONFIG_OFF + 5, edid_num);
|
||||||
|
if (status)
|
||||||
|
return (PTN_BUS_ERROR | status);
|
||||||
|
|
||||||
|
/* Now we can simply write EDID-data to ptn3460. */
|
||||||
|
for (i = 0; i < PTN_EDID_LEN; i++) {
|
||||||
|
status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR,
|
||||||
|
PTN_EDID_OFF + i, data[i]);
|
||||||
|
if (status)
|
||||||
|
return (PTN_BUS_ERROR | status);
|
||||||
|
}
|
||||||
|
|
||||||
|
return PTN_NO_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* This function selects one of 7 EDID-tables inside PTN3460 which should be
|
||||||
|
* emulated on DisplayPort and turn emulation ON.
|
||||||
|
*
|
||||||
|
* @param edid_num Number of EDID to emulate (0..6).
|
||||||
|
* @return 0 on success or error code.
|
||||||
|
*/
|
||||||
|
int ptn_select_edid(uint8_t edid_num)
|
||||||
|
{
|
||||||
|
int status;
|
||||||
|
uint8_t val;
|
||||||
|
|
||||||
|
if (edid_num > PTN_MAX_EDID_NUM)
|
||||||
|
return PTN_INVALID_EDID;
|
||||||
|
/* Enable emulation of the desired EDID table. */
|
||||||
|
val = (edid_num << 1) | 1;
|
||||||
|
status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR,
|
||||||
|
PTN_CONFIG_OFF + 4, val);
|
||||||
|
if (status)
|
||||||
|
return (PTN_BUS_ERROR | status);
|
||||||
|
else
|
||||||
|
return PTN_NO_ERROR;
|
||||||
|
}
|
Reference in New Issue
Block a user