I am observing a strange interaction between configuring PCI support in my kernel and CompactFlash probing. Without PCI support configured, the CF card is discovered and configured by the kernel. With PCI support configured, there is some issue in the probing of the CF card.
There are only two things that I notice between the two kernel setups that might be significant: 1.) The libata virq changes from 19 to 20. 2.) The isa_io_base changes from 0x0 to 0xfcfff000. Are either of these two changes significant? I am using the "arch/powerpc" kernel, version 2.6.20.21. The CF is wired directly to the local bus in True IDE mode. I have some debug info included below. -- Johns ================ without CONFIG_PCI ================= ata_device_add: ENTER ata_port_add: ENTER ata_port_start: prd alloc, virt dfe2a000, dma 1fe2a000 ata1: PATA max PIO0 cmd 0xE1062000 ctl 0xE106420C bmdma 0x0 irq 19 __ata_port_freeze: ata1 port frozen ata_device_add: probe begin scsi0 : pata_platform ata_port_schedule_eh: port EH scheduled ata_scsi_error: ENTER ata_port_flush_task: ENTER ata_port_flush_task: flush #1 ata_eh_autopsy: ENTER ata_eh_recover: ENTER ata_eh_prep_resume: ENTER ata_eh_prep_resume: EXIT __ata_port_freeze: ata1 port frozen ata_std_softreset: ENTER ata_std_softreset: about to softreset, devmask=3 ata_bus_softreset: ata1: bus reset via SRST ata_dev_classify: found ATA device by sig ata_dev_classify: found ATA device by sig ata_std_softreset: EXIT, classes[0]=1 [1]=5 ata_std_postreset: ENTER ata_std_postreset: EXIT ata_eh_thaw_port: ata1 port thawed ata_eh_revalidate_and_attach: ENTER ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata_tf_load_mmio: feat 0x0 nsect 0x0 lba 0x0 0x0 0x0 ata_tf_load_mmio: device 0xA0 ata_exec_command_mmio: ata1: cmd 0xEC ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_hsm_move: ata1: protocol 2 task_state 2 (dev_stat 0x50) ata_hsm_move: ata1: dev 0 command complete, drv_stat 0x50 ata_port_flush_task: ENTER ata_port_flush_task: flush #1 ata_dump_id: 49==0x0200 53==0x0003 63==0x0000 64==0x0003 75==0x0000 ata_dump_id: 80==0x0400 81==0x0000 82==0x0000 83==0x0000 84==0x0000 ata_dump_id: 88==0x0000 93==0x0000 ata1.00: CFA, max PIO4, 250880 sectors: LBA ata1.00: ata1: dev 0 multi count 0 ata_eh_revalidate_and_attach: EXIT ata_eh_resume: ENTER ata_eh_resume: EXIT ata_eh_suspend: ENTER ata_eh_suspend: EXIT ata_eh_recover: EXIT, rc=0 ata_scsi_error: EXIT ata_device_add: host probe begin ata_scsi_dump_cdb: CDB (1:0,0,0) 12 00 00 00 24 00 30 58 df ata_scsiop_inq_std: ENTER ata_scsi_dump_cdb: CDB (1:0,0,0) 12 00 00 00 60 00 30 58 df ata_scsiop_inq_std: ENTER scsi 0:0:0:0: Direct-Access ATA SanDisk SDCFH-12 HDB PQ: 0 ANSI: 5 ata_scsi_dump_cdb: CDB (1:0,0,0) 00 00 00 00 00 00 30 58 df ata_scsiop_noop: ENTER ata_scsi_dump_cdb: CDB (1:0,0,0) 25 00 00 00 00 00 00 00 00 ata_scsiop_read_cap: ENTER SCSI device sda: 250880 512-byte hdwr sectors (128 MB) ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 3f 00 00 00 00 00 08 ata_scsiop_mode_sense: ENTER sda: Write Protect is off ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 08 ata_scsiop_mode_sense: ENTER ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 24 ata_scsiop_mode_sense: ENTER SCSI device sda: write cache: disabled, read cache: enabled, doesn't support DPO or FUA ata_scsi_dump_cdb: CDB (1:0,0,0) 00 00 00 00 00 00 00 00 24 ata_scsiop_noop: ENTER ata_scsi_dump_cdb: CDB (1:0,0,0) 1e 00 00 00 01 00 00 00 24 ata_scsi_dump_cdb: CDB (1:0,0,0) 00 00 00 00 00 00 00 00 24 ata_scsiop_noop: ENTER ata_scsi_dump_cdb: CDB (1:0,0,0) 25 00 00 00 00 00 00 00 00 ata_scsiop_read_cap: ENTER SCSI device sda: 250880 512-byte hdwr sectors (128 MB) ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 3f 00 00 00 00 00 08 ata_scsiop_mode_sense: ENTER sda: Write Protect is off ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 08 ata_scsiop_mode_sense: ENTER ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 24 ata_scsiop_mode_sense: ENTER SCSI device sda: write cache: disabled, read cache: enabled, doesn't support DPO or FUA sda:<3>ata_scsi_dump_cdb: CDB (1:0,0,0) 28 00 00 00 00 00 00 00 08 ata_scsi_translate: ENTER scsi_10_lba_len: ten-byte command ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata_tf_load_mmio: feat 0x0 nsect 0x8 lba 0x0 0x0 0x0 ata_tf_load_mmio: device 0xE0 ata_exec_command_mmio: ata1: cmd 0x20 ata_scsi_translate: EXIT ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_host_intr: ata1: protocol 2 task_state 1 ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ata_hsm_move: ata1: protocol 2 task_state 2 (dev_stat 0x50) ata_hsm_move: ata1: dev 0 command complete, drv_stat 0x50 sda1 sda2 sda3 sd 0:0:0:0: Attached scsi removable disk sda ata_device_add: EXIT, returning 1 ================ without CONFIG_PCI ================= ================== with CONFIG_PCI ================= ata_device_add: ENTER ata_port_add: ENTER ata_port_start: prd alloc, virt dfe46000, dma 1fe46000 ata1: PATA max PIO0 cmd 0xE1062000 ctl 0xE106420C bmdma 0x0 irq 20 __ata_port_freeze: ata1 port frozen ata_device_add: probe begin scsi0 : pata_platform ata_port_schedule_eh: port EH scheduled ata_scsi_error: ENTER ata_port_flush_task: ENTER ata_port_flush_task: flush #1 ata_eh_autopsy: ENTER ata_eh_recover: ENTER ata_eh_prep_resume: ENTER ata_eh_prep_resume: EXIT __ata_port_freeze: ata1 port frozen ata_std_softreset: ENTER ata_std_softreset: about to softreset, devmask=3 ata_bus_softreset: ata1: bus reset via SRST ata_dev_classify: found ATA device by sig ata_dev_classify: found ATA device by sig ata_std_softreset: EXIT, classes[0]=1 [1]=5 ata_std_postreset: ENTER ata_std_postreset: EXIT ata_eh_thaw_port: ata1 port thawed ata_eh_revalidate_and_attach: ENTER ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata_tf_load_mmio: feat 0x0 nsect 0x0 lba 0x0 0x0 0x0 ata_tf_load_mmio: device 0xA0 ata_exec_command_mmio: ata1: cmd 0xEC ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ATA: abnormal status 0x58 on port 0xE106200E ata_hsm_move: ata1: protocol 2 task_state 2 (dev_stat 0x58) ata_hsm_move: ata1: protocol 2 task_state 3 (dev_stat 0x58) __ata_port_freeze: ata1 port frozen ata_port_flush_task: ENTER ata_port_flush_task: flush #1 ata1.00: failed to IDENTIFY (I/O error, err_mask=0x2) ata_eh_revalidate_and_attach: EXIT ata_eh_prep_resume: ENTER ata_eh_prep_resume: EXIT __ata_port_freeze: ata1 port frozen ata_std_softreset: ENTER ata_std_softreset: about to softreset, devmask=3 ata_bus_softreset: ata1: bus reset via SRST ata_dev_classify: found ATA device by sig ata_dev_classify: found ATA device by sig ata_std_softreset: EXIT, classes[0]=1 [1]=5 ata_std_postreset: ENTER ata_std_postreset: EXIT ata_eh_thaw_port: ata1 port thawed ata_eh_revalidate_and_attach: ENTER ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata_tf_load_mmio: feat 0x0 nsect 0x0 lba 0x0 0x0 0x0 ata_tf_load_mmio: device 0xA0 ata_exec_command_mmio: ata1: cmd 0xEC ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ATA: abnormal status 0x58 on port 0xE106200E ata_hsm_move: ata1: protocol 2 task_state 2 (dev_stat 0x58) ata_hsm_move: ata1: protocol 2 task_state 3 (dev_stat 0x58) __ata_port_freeze: ata1 port frozen ata_port_flush_task: ENTER ata_port_flush_task: flush #1 ata1.00: failed to IDENTIFY (I/O error, err_mask=0x2) ata_eh_revalidate_and_attach: EXIT ata_eh_prep_resume: ENTER ata_eh_prep_resume: EXIT __ata_port_freeze: ata1 port frozen ata_std_softreset: ENTER ata_std_softreset: about to softreset, devmask=3 ata_bus_softreset: ata1: bus reset via SRST ata_dev_classify: found ATA device by sig ata_dev_classify: found ATA device by sig ata_std_softreset: EXIT, classes[0]=1 [1]=5 ata_std_postreset: ENTER ata_std_postreset: EXIT ata_eh_thaw_port: ata1 port thawed ata_eh_revalidate_and_attach: ENTER ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata1: ata_dev_select: ENTER, ata1: device 0, wait 1 ata_tf_load_mmio: feat 0x0 nsect 0x0 lba 0x0 0x0 0x0 ata_tf_load_mmio: device 0xA0 ata_exec_command_mmio: ata1: cmd 0xEC ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) ata_pio_sector: data read ATA: abnormal status 0x58 on port 0xE106200E ata_hsm_move: ata1: protocol 2 task_state 2 (dev_stat 0x58) ata_hsm_move: ata1: protocol 2 task_state 3 (dev_stat 0x58) __ata_port_freeze: ata1 port frozen ata_port_flush_task: ENTER ata_port_flush_task: flush #1 ata1.00: failed to IDENTIFY (I/O error, err_mask=0x2) ata_eh_revalidate_and_attach: EXIT ata_eh_prep_resume: ENTER ata_eh_prep_resume: EXIT __ata_port_freeze: ata1 port frozen ata_std_softreset: ENTER ata_std_softreset: about to softreset, devmask=3 ata_bus_softreset: ata1: bus reset via SRST ata_dev_classify: found ATA device by sig ata_dev_classify: found ATA device by sig ata_std_softreset: EXIT, classes[0]=1 [1]=5 ata_std_postreset: ENTER ata_std_postreset: EXIT ata_eh_thaw_port: ata1 port thawed ata_eh_revalidate_and_attach: ENTER ata_eh_revalidate_and_attach: EXIT ata_eh_resume: ENTER ata_eh_resume: EXIT ata_eh_suspend: ENTER ata_eh_suspend: EXIT ata_eh_recover: EXIT, rc=0 ata_scsi_error: EXIT ata_device_add: host probe begin ata_device_add: EXIT, returning 1 ================== with CONFIG_PCI ================= _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
