## ## This file is part of the coreboot project. ## ## Copyright 2015 Google Inc. ## ## 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. ## ## 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. ## chip soc/nvidia/tegra132 register "spintable_addr" = "0x80000008" device cpu_cluster 0 on device cpu 0 on end device cpu 1 on end end register "display_controller" = "TEGRA_ARM_DISPLAYA" register "xres" = "1366" register "yres" = "768" # framebuffer resolution register "display_xres" = "1368" register "display_yres" = "678" # bits per pixel and color depth register "framebuffer_bits_per_pixel" = "16" register "color_depth" = "6" register "panel_bits_per_pixel" = "18" # How to compute these: xrandr --verbose will give you this: #Detailed mode: Clock 285.250 MHz, 272 mm x 181 mm # 2560 2608 2640 2720 hborder 0 # 1700 1703 1713 1749 vborder 0 #Then you can compute your values: #H front porch = 2608 - 2560 = 48 #H sync = 2640 - 2608 = 32 #H back porch = 2720 - 2640 = 80 #V front porch = 1703 - 1700 = 3 #V sync = 1713 - 1703 = 10 #V back porch = 1749 - 1713 = 36 #href_to_sync and vref_to_sync are from the vendor #this is just an example for a Pixel panel; other panels differ. # Here is a peppy panel: # 1366x768 (0x45) 76.4MHz -HSync -VSync *current +preferred # h: width 1366 start 1502 end 1532 total 1592 # v: height 768 start 776 end 788 total 800 register "href_to_sync" = "1" register "hfront_porch" = "136" register "hsync_width" = "30" register "hback_porch" = "60" register "vref_to_sync" = "1" register "vfront_porch" = "8" register "vsync_width" = "12" register "vback_porch" = "12" register "pixel_clock" = "76400000" register "win_opt" = "SOR_ENABLE" # # dp specific fields # register "dp.pwm" = "1" # various panel delay time register "dp.vdd_to_hpd_delay_ms" = "200" register "dp.hpd_unplug_min_us" = "2000" register "dp.hpd_plug_min_us" = "250" register "dp.hpd_irq_min_us" = "250" # link configurations register "dp.lane_count" = "1" register "dp.enhanced_framing" = "1" register "dp.link_bw" = "10" # "10" is defined as SOR_LINK_SPEED_G2_7 in sor.h register "dp.drive_current" = "0x40404040" register "dp.preemphasis" = "0x0f0f0f0f" register "dp.postcursor" = "0" end