Hello group,
I am working on i.mx35 based board and I have found a problem with mx3fb
driver. On boot kernel freeze during mx3fb driver initialization and
reboot after few seconds. I tried to debug with prints and found that
kernel freeze as soon as writing SDC_COM_BG_EN in SDC_COM_CONF register.
Could you please give me advice how get more debug information?
[ 1.018314] Remapped [mem 0x53fc00b4-0x53fc01bf] at f57c00b4
[ 1.024010] dmaengine: private_candidate: dma0chan0 filter said false
[ 1.030591] dmaengine: private_candidate: dma0chan1 filter said false
[ 1.037044] dmaengine: private_candidate: dma0chan2 filter said false
[ 1.043643] dmaengine: private_candidate: dma0chan3 filter said false
[ 1.050096] dmaengine: private_candidate: dma0chan4 filter said false
[ 1.056692] dmaengine: private_candidate: dma0chan5 filter said false
[ 1.063146] dmaengine: private_candidate: dma0chan6 filter said false
[ 1.069742] dmaengine: private_candidate: dma0chan7 filter said false
[ 1.076233] dmaengine: private_candidate: dma0chan8 filter said false
[ 1.082843] dmaengine: private_candidate: dma0chan9 filter said false
[ 1.089296] dmaengine: private_candidate: dma0chan10 filter said false
[ 1.095894] dmaengine: private_candidate: dma0chan11 filter said false
[ 1.102491] dmaengine: private_candidate: dma0chan12 filter said false
[ 1.109102] dmaengine: private_candidate: dma0chan13 filter said false
[ 1.115718] IPU: mapped source 14 to IRQ 176
[ 1.198869] ipu-core ipu-core: init channel = 14
[ 1.203638] ipu-core ipu-core: IDMAC_CONF 0x70, IC_CONF 0x0,
IDMAC_CHA_EN 0x0, IDMAC_CHA_PRI 0x4000, IDMAC_ CHA_BUSY 0x0
[ 1.214447] ipu-core ipu-core: BUF0_RDY 0x4000, BUF1_RDY 0x0, CUR_BUF
0x0, DB_MODE 0x0, TASKS_STAT 0x2003
[ 1.224442] dma dma0chan14: Found channel 0xe, irq 176
[ 1.229690] dmaengine: __dma_request_channel: success (dma0chan14)
[ 1.235966] return 1
[ 1.238276] mx3_sdc_fb mx3_sdc_fb: mx3fb_check_var
[ 1.243121] mx3_sdc_fb mx3_sdc_fb: mx3fb_check_var
[ 1.247989] mx3_sdc_fb mx3_sdc_fb: sdc_set_brightness: value = 255
[ 1.254238] mx3_sdc_fb mx3_sdc_fb: disabling irq 176
[ 1.270275] mx3_sdc_fb mx3_sdc_fb: allocated fb @ p=0x97000000,
v=0xd887d000, size=1536000.
[ 1.294524] mx3_sdc_fb mx3_sdc_fb: pixclock = 33260000l Hz
[ 1.300118] mx3_sdc_fb mx3_sdc_fb: panel size = 800 x 480
[ 1.305528] hor_conf 3e80000, ver_conf 1f40001
[ 1.310266] mx3_sdc_fb mx3_sdc_fb: InitPanel() - Pixel clock divider
less than 4
[ 1.317813] mx3_sdc_fb mx3_sdc_fb: pixel clk = 33260000, divider 4.0
[ 1.324272] mx3_sdc_fb mx3_sdc_fb: DI_DISP_IF_CONF = 0x04000000
[ 1.330209] mx3_sdc_fb mx3_sdc_fb: DI_DISP_SIG_POL = 0x06000000
[ 1.336287] mx3_sdc_fb mx3_sdc_fb: DI_DISP3_TIME_CONF = 0x01C00040
[ 1.348164] mx3_sdc_fb mx3_sdc_fb: mx3fbi d798d25c, txd = NULL
[ 1.354123] ipu-core ipu-core: write param mem - addr = 0x000100E0,
data = 0x00000000
[ 1.362003] ipu-core ipu-core: write param mem - addr = 0x000100E1,
data = 0x00004000
[ 1.369987] ipu-core ipu-core: write param mem - addr = 0x000100E2,
data = 0x00000000
[ 1.377835] ipu-core ipu-core: write param mem - addr = 0x000100E3,
data = 0xDF31F000
[ 1.385821] ipu-core ipu-core: write param mem - addr = 0x000100E4,
data = 0x00000001
[ 1.393670] ipu-core ipu-core: write param mem - addr = 0x000100E8,
data = 0x97000000
[ 1.401655] ipu-core ipu-core: write param mem - addr = 0x000100E9,
data = 0x00000000
[ 1.409504] ipu-core ipu-core: write param mem - addr = 0x000100EA,
data = 0x1E0831FA
[ 1.417490] ipu-core ipu-core: write param mem - addr = 0x000100EB,
data = 0x96416502
[ 1.425338] ipu-core ipu-core: write param mem - addr = 0x000100EC,
data = 0x00000000
[ 1.433323] dma dma0chan14: Submitting sg d798d2d4
[ 1.438224] dma dma0chan14: Updated sg d798d2d4 on channel 0xe buffer 0
[ 1.444864] ipu-core ipu-core: IDMAC_CONF 0x70, IC_CONF 0x0,
IDMAC_CHA_EN 0x0, IDMAC_CHA_PRI 0x4000, IDMAC_ CHA_BUSY 0x0
[ 1.455798] ipu-core ipu-core: BUF0_RDY 0x4000, BUF1_RDY 0x0, CUR_BUF
0x0, DB_MODE 0x0, TASKS_STAT 0x3
[ 1.465214] ipu-core ipu-core: IDMAC_CONF 0x70, IC_CONF 0x0,
IDMAC_CHA_EN 0x4000, IDMAC_CHA_PRI 0x4000, IDM AC_CHA_BUSY 0x0
[ 1.476365] ipu-core ipu-core: BUF0_RDY 0x4000, BUF1_RDY 0x0, CUR_BUF
0x0, DB_MODE 0x0, TASKS_STAT 0x3
[ 1.485807] mx3_sdc_fb mx3_sdc_fb: 422: Submit d887b09c #2 [+]
[ 1.510871] mx3_sdc_fb mx3_sdc_fb: sdc_set_brightness: value = 255
[
Thank you in advance!
Regards,
Ivan
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