Adding some more debug data for reference...
> I've launched an hour ago:
> bitbake linux-omap-2.6.28
> I've obtain:
> tmp/work/beagleboard-angstrom-linux-gnueabi/linux-omap-2.6.28-r10/
> image/boot/uImage-2.6.28-omap1
> I copy it to the SD card, formatted following the Koen's videohttp://www.angstrom-distribution.org/video-tutorial-how-install-%C3%A...
> I set bootargs:
> set bootargs 'console=ttyS2,115200n8 console=tty0 root=/dev/mmcblk0p2
> rootdelay=2 rootfstype=ext2 rw omapfb.video_mode=1280x720MR-24@60'
> It works!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> With linux-omap-2.6.28-r0 I was not able to do the same.
> Next time, monday, I'll try S-Video output.
> I'm using the filesystem obtained using:
> bitbake beagleboard-demo-image
> It is the same of Koen's Angstrom demos, so it contains more than 6000
> tasks, requiring so a powerful pc and a lot of time.
> Thanks!!!
> > > With the new DSS introduced at [1], you should refer to instructions
> > > given at [2]. I found the source file referenced [3] and the
> > > documentation [4] and produced a setting that works with my HDTV:
> > > console=ttyS2,115200n8 root=ram0 rw ramdisk=16384
> > > initrd=0x81600000,16M video=vram:10M,omapfb.video_mode:1280x720M-24@60
> > That looks like an odd mixture of DSS1 and DSS2 settings, which, I
> > guess, won't work in either of them. Also, you probably have to spesify
> > R for reduced timings, as OMAP can't output most of the non-reduced
> > timings. So perhaps something like:
> > vram=10M omapfb.video_mode=1280x720MR-24@60
> > Tomi
Just to log some extra data points using the Rev C validation kernel
and u-boot release candidates from Friday... These give me valid
output on both my HDTV and my Pico Projector.
OMAP3 beagleboard.org # setenv bootargs console=ttyS2,115200n8
omapfb.video_mode=1280x720MR-24@60 omapfb.debug=y root=/dev/ram0 rw
ramdisk_size=32768 initrd=${rdaddr},32M
OMAP3 beagleboard.org # if mmcinit; then if run loaduimage; then if
run loadramdisk; then bootm ${loadaddr}; fi; fi; fi
.
.
.
root@beagleboard:~# fbset
mode "1280x720-60"
# D: 64.000 MHz, H: 44.444 kHz, V: 59.979 Hz
geometry 1280 720 1280 720 32
timings 15625 80 48 3 13 32 5
rgba 8/16,8/8,8/0,0/0
endmode
root@beagleboard:~# cat /sys/devices/platform/omap-dss/clk
- dss -
internal clk count 3
dss_ick 83000000 1
dss1_alwon_fck 96000000 1
dss2_alwon_fck 13000000 1
dss_tv_fck 54000000 0
dss_96m_fck 96000000 0
- dispc -
dispc fclk source = dsi1_pll_fclk
pixel clk = 128000000 / 1 / 2 = 64000000
- dsi -
dsi fclk source = dss1_alwon_fclk
dsi pll source = dss2_alwon_fclk
DSIPHY 1664000000
DDR_CLK 416000000
dsi1_pll_fck 128000000 (on)
dsi2_pll_fck 104000000 (off)
root@beagleboard:~# cat /sys/class/graphics/fb0/modes
U:1280x720p-59
root@beagleboard:~# mount -t debugfs none /sys/kernel/debug/
root@beagleboard:~# ls /sys/kernel/debug/
asoc gpio mmc0 usbmon
bdi ieee80211 omap_gpio
clock lbs_wireless sched_features
root@beagleboard:~# dmesg | grep OMAPFB
OMAPFB: omapfb_init
OMAPFB: omapfb_probe
OMAPFB: create 3 framebuffers
OMAPFB: fb_infos allocated
OMAPFB: allocating 3686400 bytes for fb 0
OMAPFB: allocated VRAM paddr 83600000, vaddr d1000000
OMAPFB: region0 phys 83600000 virt d1000000 size=3686400
OMAPFB: region1 phys 00000000 virt 00000000 size=0
OMAPFB: region2 phys 00000000 virt 00000000 size=0
OMAPFB: fbmems allocated
OMAPFB: check_fb_var 0
OMAPFB: xres = 1280, yres = 720, vxres = 1280, vyres = 720
OMAPFB: set_fb_fix
OMAPFB: check_fb_var 1
OMAPFB: set_fb_fix
OMAPFB: check_fb_var 2
OMAPFB: set_fb_fix
OMAPFB: fb_infos initialized
OMAPFB: set_par(0)
OMAPFB: set_fb_fix
OMAPFB: apply_changes, fb 0, ovl 0
OMAPFB: setup_overlay 0
OMAPFB: pan_display(0)
OMAPFB: setcmap
OMAPFB: setcmap
OMAPFB: pan_display(0)
OMAPFB: setcmap
OMAPFB: setcmap
OMAPFB: framebuffers registered
OMAPFB: apply_changes, fb 0, ovl 0
OMAPFB: setup_overlay 0
OMAPFB: apply_changes, fb 1, ovl 1
OMAPFB: apply_changes, fb 2, ovl 2
OMAPFB: create_framebuffers done
OMAPFB: mgr->apply'ed
OMAPFB: display->updated
OMAPFB: sysfs created
OMAPFB: Closing fb with plane index 0
OMAP3 beagleboard.org # setenv bootargs console=ttyS2,115200n8
omapfb.video_mode=1280x720MR-24@60 omapfb.debug=y omap-dss.debug=y
root=/dev/ram0 rw ramdisk_size=32768 initrd=${rdaddr},32M
OMAP3 beagleboard.org # run loadramdisk; then bootm ${loadaddr}; fi;
fi; fi
.
.
.
fbcvt: 1280x720@60: CVT Name - .921M9-R
.
.
.
root@beagleboard:~# dmesg | grep dss
omap-dss DISPLAY: panel 'panel-generic' registered
omap-dss: dpi_set_timings
omap-dss DISPLAY: omap_dss_mgr_apply(lcd)
omap-dss DISPC: dispc_enable_plane 0, 0
omap-dss DISPC: dispc_enable_plane 1, 0
omap-dss DISPC: dispc_enable_plane 2, 0
omap-dss DSS: save context
omap-dss DISPLAY: omap_dss_mgr_apply(tv)
omap-dss DSS: save context
omap-dss DISPLAY: omap_dss_mgr_apply_l4(l4)
omap-dss DSI: PLL init
omap-dss DISPC: dpll4_m4 = 432000000
omap-dss DISPC: fck = 96000000 (9)
omap-dss DISPC: lck = 96000000 (1)
omap-dss DISPC: pck = 48000000 (2)
omap-dss DSI: PLL init done
omap-dss DISPC: fifo(0) size 1024, low/high old 960/1023, new 256/960
omap-dss DISPC: fifo(1) size 1024, low/high old 960/1023, new 256/960
omap-dss DISPC: fifo(2) size 1024, low/high old 960/1023, new 256/960
omap-dss DISPC: onoff 0 rf 0 ieo 0 ipc 0 ihs 0 ivs 0 acbi 0 acb 0
omap-dss DSI: dsi_pll_calc
omap-dss DSI: dsi_pll_program
omap-dss DSI: DSI Fint 1857142
omap-dss DSI: clkin (dss2_fck) rate 13000000, highfreq 0
omap-dss DSI: DSIPHY = 2 * 448 / 7 * 13000000 / 1 = 1664000000
omap-dss DSI: Data rate on 1 DSI lane 832 Mbps
omap-dss DSI: Clock lane freq 416000000 Hz
omap-dss DSI: regm3 = 13, dsi1_pll_fclk = 128000000
omap-dss DSI: regm4 = 16, dsi2_pll_fclk = 104000000
omap-dss DSI: PLL config done
omap-dss DISPC: xres 1280 yres 720
omap-dss DISPC: pck 64000
omap-dss DISPC: hsw 32 hfp 80 hbp 48 vsw 5 vfp 3 vbp 13
omap-dss DISPC: hsync 44444Hz, vsync 59Hz