TV-OUT Support on IMX233, Kernel module && informations

Started by andyinno, November 28, 2014, 07:06:39 PM

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andyinno

Hello everybody,

this is my first message and I would like to thank you olimex for the board I am using from some time as test bench.
I'm writing because I actually have a board where I want to use tvout. I actually have baked my openembedded custom rom and it's working like a charm except for the tvout. I checked with a scope and I don't have any output on the pin. I have two boards so I think it's a software problem.
I read on the net that archlinux have tvout support. I read that openembedded has made some progress on it. I just have a black screen :(

I'm diving inside the linux kernel configuration but I cannot find the tvout module.

Also... If I check on the serial console I don't find any reference on framebuffer or similar.
Where should I check to see if it is enabled?

Some info below...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.14.19-fslc+g00e4721 (andrea@andrea-desktop) (gcc version 4.8.2 (GCC) ) #1 Fri Nov 28 14:48:58 CET 2014
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] Machine model: i.MX23 Olinuxino Low Cost Board
[    0.000000] Memory policy: Data cache writeback
[    0.000000] On node 0 totalpages: 16384
[    0.000000] free_area_init_node: node 0, pgdat c0700d48, node_mem_map c3f7c000
[    0.000000]   Normal zone: 128 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 16384 pages, LIFO batch:3
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: console=ttyAMA0,115200 root=/dev/mmcblk0p3 rw rootwait
[    0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 52228K/65536K available (4808K kernel code, 295K rwdata, 1820K rodata, 226K init, 5481K bss, 13308K reserved)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xc4800000 - 0xff000000   ( 936 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0681450   (6630 kB)
[    0.000000]       .init : 0xc0682000 - 0xc06bab94   ( 227 kB)
[    0.000000]       .data : 0xc06bc000 - 0xc0705f90   ( 296 kB)
[    0.000000]        .bss : 0xc0705f90 - 0xc0c60668   (5482 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] of_irq_init: children remain, but no parents
[    0.000000] sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836480000000ns
[    0.000000] Console: colour dummy device 80x30
[    0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.000000] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.000000] ... MAX_LOCK_DEPTH:          48
[    0.000000] ... MAX_LOCKDEP_KEYS:        8191
[    0.000000] ... CLASSHASH_SIZE:          4096
[    0.000000] ... MAX_LOCKDEP_ENTRIES:     16384
[    0.000000] ... MAX_LOCKDEP_CHAINS:      32768
[    0.000000] ... CHAINHASH_SIZE:          16384
[    0.000000]  memory used by lock dependency info: 3695 kB
[    0.000000]  per task-struct memory footprint: 1152 bytes
[    0.070000] Calibrating delay loop... 226.09 BogoMIPS (lpj=1130496)
[    0.070000] pid_max: default: 32768 minimum: 301
[    0.070000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.070000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.070000] CPU: Testing write buffer coherency: ok
[    0.080000] Setting up static identity map for 0x40493228 - 0x40493280
[    0.100000] devtmpfs: initialized
[    0.110000] pinctrl core: initialized pinctrl subsystem
[    0.120000] regulator-dummy: no parameters
[    0.120000] NET: Registered protocol family 16
[    0.120000] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.190000] Serial: AMBA PL011 UART driver
[    0.190000] 80070000.serial: ttyAMA0 at MMIO 0x80070000 (irq = 17, base_baud = 0) is a PL011 rev2
[    0.390000] console [ttyAMA0] enabled
[    0.440000] bio: create slab <bio-0> at 0
[    0.460000] mxs-dma 80004000.dma-apbh: initialized
[    0.480000] mxs-dma 80024000.dma-apbx: initialized
[    0.480000] usb0_vbus: 5000 mV
[    0.490000] SCSI subsystem initialized
[    0.490000] usbcore: registered new interface driver usbfs
[    0.500000] usbcore: registered new interface driver hub
[    0.500000] usbcore: registered new device driver usb
[    0.510000] pps_core: LinuxPPS API ver. 1 registered
[    0.510000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.520000] PTP clock support registered
[    0.520000] Advanced Linux Sound Architecture Driver Initialized.
[    0.530000] Switched to clocksource mxs_timer
[    0.960000] NET: Registered protocol family 2
[    0.970000] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.980000] TCP bind hash table entries: 1024 (order: 3, 36864 bytes)
[    0.990000] TCP: Hash tables configured (established 1024 bind 1024)
[    0.990000] TCP: reno registered
[    1.000000] UDP hash table entries: 256 (order: 2, 20480 bytes)
[    1.000000] UDP-Lite hash table entries: 256 (order: 2, 20480 bytes)
[    1.010000] NET: Registered protocol family 1
[    1.020000] RPC: Registered named UNIX socket transport module.
[    1.030000] RPC: Registered udp transport module.
[    1.030000] RPC: Registered tcp transport module.
[    1.040000] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.050000] futex hash table entries: 256 (order: 1, 11264 bytes)
[    1.170000] NFS: Registering the id_resolver key type
[    1.180000] Key type id_resolver registered
[    1.190000] Key type id_legacy registered
[    1.190000] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    1.200000] msgmni has been set to 102
[    1.230000] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    1.230000] io scheduler noop registered (default)
[    1.250000] of_dma_request_slave_channel: dma-names property of node '/apb@80000000/apbx@80040000/serial@80070000' missing or empty
[    1.260000] uart-pl011 80070000.serial: no DMA platform data
[    1.270000] 8006c000.serial: ttyAPP0 at MMIO 0x8006c000 (irq = 146, base_baud = 1500000) is a 8006c000.serial
[    1.280000] mxs-auart 8006c000.serial: Found APPUART 3.0.0
[    1.310000] usbcore: registered new interface driver asix
[    1.310000] usbcore: registered new interface driver ax88179_178a
[    1.320000] usbcore: registered new interface driver cdc_ether
[    1.330000] usbcore: registered new interface driver smsc95xx
[    1.330000] usbcore: registered new interface driver net1080
[    1.340000] usbcore: registered new interface driver cdc_subset
[    1.350000] usbcore: registered new interface driver zaurus
[    1.350000] usbcore: registered new interface driver cdc_ncm
[    1.360000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.370000] usbcore: registered new interface driver usb-storage
[    1.390000] mousedev: PS/2 mouse device common for all mice
[    1.410000] stmp3xxx-rtc 8005c000.rtc: rtc core: registered 8005c000.rtc as rtc0
[    1.410000] i2c /dev entries driver
[    1.420000] stmp3xxx_rtc_wdt stmp3xxx_rtc_wdt: initialized watchdog with heartbeat 19s
[    1.430000] 80010000.ssp supply vmmc not found, using dummy regulator
[    1.490000] mxs-mmc 80010000.ssp: initialized
[    1.510000] usbcore: registered new interface driver usbhid
[    1.510000] usbhid: USB HID core driver
[    1.550000] TCP: cubic registered
[    1.550000] NET: Registered protocol family 17
[    1.560000] Key type dns_resolver registered
[    1.570000] registered taskstats version 1
[    1.580000] usb0_vbus: disabling
[    1.580000] regulator-dummy: disabling
[    1.590000] stmp3xxx-rtc 8005c000.rtc: setting system clock to 1970-01-01 00:00:07 UTC (7)
[    1.610000] mmc0: host does not support reading read-only switch. assuming write-enable.
[    1.640000] mmc0: new high speed SDHC card at address aaaa
[    1.650000] ALSA device list:
[    1.650000]   No soundcards found.
[    1.660000] mmcblk0: mmc0:aaaa SL16G 14.8 GiB
[    1.690000]  mmcblk0: p1 p2 p3
[    1.800000] kjournald starting.  Commit interval 5 seconds
[    1.810000] EXT3-fs (mmcblk0p3): using internal journal
[    1.820000] EXT3-fs (mmcblk0p3): recovery complete
[    1.820000] EXT3-fs (mmcblk0p3): mounted filesystem with ordered data mode
[    1.830000] VFS: Mounted root (ext3 filesystem) on device 179:3.
[    1.840000] devtmpfs: mounted
[    1.850000] Freeing unused kernel memory: 224K (c0682000 - c06ba000)
[    3.280000] udevd[62]: starting version 182
[    7.450000] random: dd urandom read with 96 bits of entropy available
[    9.480000] random: nonblocking pool is initialized

This is my dmesg after boot. As you can see I'm using linux kernel 3.14.19.


MBR

There is no special TV-Out module, the TV-Out is handled by the framebuffer driver itself and it seem that the driver is not compilled in.

andyinno

Thank you MBR,

Please can you point me out on what should I check on my kernel config?
I see that framebuffer is enabled, mx module is set to compile.
It is not that one? If so... what other should I use?

Thanks again
Andrea

MBR

I'm not sure (I don't have iMX233), but try looking in the .config of the original kernel.

swahren

@andyinno

You are using a mainline kernel, but not all feature from the FSL 2.6.35 went into mainline. Maybe TV-Out is one of those features.

Have you tried the 2.6.35 kernel?

Chris

I've an original 2.6 kernel released by Freescale with perfectly working TV out, get it from here:
https://drive.google.com/file/d/0B5RB6TqFSILBMVZPUnRrWjNEdjg/view?usp=sharing

> cat /proc/version
Linux version 2.6.35.3_OLinuXinoR4 (hehopmajieh@hehopmajieh-office) (gcc version 4.7.1 20120421 (prerelease) (GCC) ) #11 PREEMPT Mon May 21 10:27:52 EEST 2012