Re: am3517: geting MMC working

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On Thu, Jul 19, 2012 at 1:45 PM, Yegor Yefremov
<yegor_sub1@xxxxxxxxxxxxxxxx> wrote:
> Am 19.07.2012 09:43, schrieb S, Venkatraman:
>> On Thu, Jul 19, 2012 at 12:58 PM, Yegor Yefremov
>> <yegor_sub1@xxxxxxxxxxxxxxxx> wrote:
>>> Am 19.07.2012 09:07, schrieb Shilimkar, Santosh:
>>>> On Thu, Jul 19, 2012 at 12:25 PM, Yegor Yefremov
>>>> <yegor_sub1@xxxxxxxxxxxxxxxx> wrote:
>>>>> Am 19.07.2012 08:34, schrieb Shilimkar, Santosh:
>>>>>> On Thu, Jul 19, 2012 at 11:54 AM, Yegor Yefremov
>>>>>> <yegor_sub1@xxxxxxxxxxxxxxxx> wrote:
>>>>>>> What patches do I need to get MMC working with linux-omap master?
>>>>>>>
>>>>>>> omap_hsmmc omap_hsmmc.0: Failed to get debounce clk
>>>>>>> omap-dma-engine omap-dma-engine: allocating channel for 62
>>>>>>> omap-dma-engine omap-dma-engine: allocating channel for 61
>>>>>>> omap_hsmmc omap_hsmmc.1: Failed to get debounce clk
>>>>>>> omap-dma-engine omap-dma-engine: allocating channel for 48
>>>>>>> omap-dma-engine omap-dma-engine: allocating channel for 47
>>>>>>>
>>>>>>> I searched for this issue and saw some patches for common clock framework
>>>>>>> that were scheduled for 3.6, but I'm not sure it's enough or weather they
>>>>>>> are already incorporated in linux-omap.
>>>>>>>
>>>>>> I guess you need [1] to get around the issue.
>>>>>>
>>>>>> [1] http://www.spinics.net/lists/linux-omap/msg73965.html
>>>>> though I haven't applied this patch I have DMA activated (CONFIG_DMADEVICES and CONFIG_DMA_OMAP). Found in some other thread [1]. As far as I can tell, debounce clk is the problem.
>>>>>
>>>> Sorry. I miss-read the message.
>>> The whole log for reference:
>>>
>>> Booting Linux on physical CPU 0
>>> Linux version 3.5.0-rc6-12227-g60701f4-dirty () (gcc version 4.5.3 (Buildroot 2012.05-rc2-00009-gfbd5a1d-dirty) ) #90 Thu Jul 19 09:23:31 CEST 2012
>>> CPU: ARMv7 Processor [411fc087] revision 7 (ARMv7), cr=10c53c7d
>>> CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
>>> Machine: OMAP3517/AM3517 EVM
>>> Ignoring tag cmdline (using the default kernel command line)
>>> bootconsole [earlycon0] enabled
>>> Memory policy: ECC disabled, Data cache writeback
>>> AM3517 ES1.1 (l2cache sgx neon )
>>> Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz
>>> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 64768
>>> Kernel command line: root=/dev/mmcblk0p2 rootwait console=ttyO2,115200 earlyprintk=serial,ttyO2,115200
>>> PID hash table entries: 1024 (order: 0, 4096 bytes)
>>> Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
>>> Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
>>> Memory: 255MB = 255MB total
>>> Memory: 247380k/247380k available, 14764k reserved, 0K highmem
>>> Virtual kernel memory layout:
>>>     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
>>>     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
>>>     vmalloc : 0xd0800000 - 0xff000000   ( 744 MB)
>>>     lowmem  : 0xc0000000 - 0xd0000000   ( 256 MB)
>>>     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
>>>       .text : 0xc0008000 - 0xc055e6a8   (5466 kB)
>>>       .init : 0xc055f000 - 0xc0594874   ( 215 kB)
>>>       .data : 0xc0596000 - 0xc05fccc0   ( 412 kB)
>>>        .bss : 0xc05fcce4 - 0xc0b2a1e8   (5302 kB)
>>> NR_IRQS:474
>>> IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts
>>> Total of 96 interrupts on 1 active controller
>>> OMAP clockevent source: GPTIMER1 at 32768 Hz
>>> sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms
>>> OMAP clocksource: 32k_counter at 32768 Hz
>>> Console: colour dummy device 80x30
>>> Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
>>> ... MAX_LOCKDEP_SUBCLASSES:  8
>>> ... MAX_LOCK_DEPTH:          48
>>> ... MAX_LOCKDEP_KEYS:        8191
>>> ... CLASSHASH_SIZE:          4096
>>> ... MAX_LOCKDEP_ENTRIES:     16384
>>> ... MAX_LOCKDEP_CHAINS:      32768
>>> ... CHAINHASH_SIZE:          16384
>>>  memory used by lock dependency info: 3695 kB
>>>  per task-struct memory footprint: 1152 bytes
>>> Calibrating delay loop... 331.40 BogoMIPS (lpj=1296384)
>>> pid_max: default: 32768 minimum: 301
>>> Security Framework initialized
>>> Mount-cache hash table entries: 512
>>> CPU: Testing write buffer coherency: ok
>>> Setting up static identity map for 0x80444ff0 - 0x80445048
>>> devtmpfs: initialized
>>> dummy:
>>> NET: Registered protocol family 16
>>> GPMC revision 5.0
>>> gpmc: irq-20 could not claim: err -22
>>> OMAP GPIO hardware version 2.5
>>> omap_mux_init: Add partition: #1: core, flags: 0
>>> _omap_mux_get_by_name: Could not find signal uart4_rx.uart4_rx
>>> Reprogramming SDRC clock to 332000000 Hz
>>> dpll3_m2_clk rate change failed: -22
>>> hw-breakpoint: debug architecture 0x4 unsupported.
>>> OMAP DMA hardware revision 4.0
>>> bio: create slab <bio-0> at 0
>>> omap-dma-engine omap-dma-engine: OMAP DMA engine driver
>>> SCSI subsystem initialized
>>> omap_i2c omap_i2c.1: bus 1 rev1.3.12 at 400 kHz
>>> omap_i2c omap_i2c.2: bus 2 rev1.3.12 at 400 kHz
>>> omap_i2c omap_i2c.3: bus 3 rev1.3.12 at 400 kHz
>>> Bluetooth: Core ver 2.16
>>> NET: Registered protocol family 31
>>> Bluetooth: HCI device and connection manager initialized
>>> Bluetooth: HCI socket layer initialized
>>> Bluetooth: L2CAP socket layer initialized
>>> Bluetooth: SCO socket layer initialized
>>> cfg80211: Calling CRDA to update world regulatory domain
>>> Switching to clocksource 32k_counter
>>> NET: Registered protocol family 2
>>> IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
>>> TCP established hash table entries: 8192 (order: 4, 65536 bytes)
>>> TCP bind hash table entries: 8192 (order: 6, 294912 bytes)
>>> TCP: Hash tables configured (established 8192 bind 8192)
>>> TCP: reno registered
>>> UDP hash table entries: 256 (order: 2, 20480 bytes)
>>> UDP-Lite hash table entries: 256 (order: 2, 20480 bytes)
>>> NET: Registered protocol family 1
>>> RPC: Registered named UNIX socket transport module.
>>> RPC: Registered udp transport module.
>>> RPC: Registered tcp transport module.
>>> RPC: Registered tcp NFSv4.1 backchannel transport module.
>>> NetWinder Floating Point Emulator V0.97 (double precision)
>>> VFS: Disk quotas dquot_6.5.2
>>> Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
>>> NFS: Registering the id_resolver key type
>>> Key type id_resolver registered
>>> jffs2: version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
>>> msgmni has been set to 483
>>> io scheduler noop registered
>>> io scheduler deadline registered
>>> io scheduler cfq registered (default)
>>> Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
>>> omap_uart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0
>>> omap_uart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1
>>> omap_uart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2
>>> console [ttyO2] enabled, bootconsole disabled
>>> console [ttyO2] enabled, bootconsole disabled
>>> omap_uart.3: ttyO3 at MMIO 0x4809e000 (irq = 84) is a OMAP UART3
>>> brd: module loaded
>>> loop: module loaded
>>> mtdoops: mtd device (mtddev=name/number) must be supplied
>>> OneNAND driver initializing
>>> davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
>>> davinci_mdio davinci_mdio.0: detected phy mask fffffffd
>>> davinci_mdio.0: probed
>>> davinci_mdio davinci_mdio.0: phy[1]: device davinci_mdio-0:01, driver unknown
>>> mousedev: PS/2 mouse device common for all mice
>>> i2c /dev entries driver
>>> omap_wdt: OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec
>>> Bluetooth: HCI UART driver ver 2.2
>>> Bluetooth: HCI H4 protocol initialized
>>> Bluetooth: HCI BCSP protocol initialized
>>> Bluetooth: HCILL protocol initialized
>>> omap_hsmmc omap_hsmmc.0: Failed to get debounce clk
>>> omap-dma-engine omap-dma-engine: allocating channel for 62
>>> omap-dma-engine omap-dma-engine: allocating channel for 61
>>> omap_hsmmc omap_hsmmc.1: Failed to get debounce clk
>>> omap-dma-engine omap-dma-engine: allocating channel for 48
>>> omap-dma-engine omap-dma-engine: allocating channel for 47
>>> oprofile: hardware counters not available
>>> oprofile: using timer interrupt.
>>> TCP: cubic registered
>>> Initializing XFRM netlink socket
>>> NET: Registered protocol family 17
>>> NET: Registered protocol family 15
>>> lib80211: common routines for IEEE802.11 drivers
>>> Key type dns_resolver registered
>>> VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1
>>> voltdm_scale: No voltage scale API registered for vdd_mpu_iva
>>> voltdm_scale: No voltage scale API registered for vdd_core
>>> PM: no software I/O chain control; some wakeups may be lost
>>> ThumbEE CPU extension supported.
>>> clock: disabling unused clocks to save power
>>> davinci_emac davinci_emac.0: using random MAC addr: 9a:df:69:5d:52:ee
>>> Waiting for root device /dev/mmcblk0p2...
>>> mmc0: host does not support reading read-only switch. assuming write-enable.
>>> --
>> Debouce clocks failures are non fatal, and are present in OMAP2xxx only.
>> (I don't know about AM35xx, but most likely its not present).
>
> You're right:
> http://old.nabble.com/-PATCH-V2--omap_hsmmc:-Fix-for-the-db-clock-failure-message-td25047778.html
>
>> The last 2 lines shows that mmc0 is enumerated, but the boot partition is not.
>> If possible, can you please provide logs with MMC_DEBUG enabled at compile time
>> and a verbose loglevel (loglevel=8) ?
>
> Bluetooth: HCI UART driver ver 2.2
> Bluetooth: HCI H4 protocol initialized
> Bluetooth: HCI BCSP protocol initialized
> Bluetooth: HCILL protocol initialized
> omap_hsmmc omap_hsmmc.0: context was not lost
> omap_hsmmc omap_hsmmc.0: enabled
> omap_hsmmc omap_hsmmc.0: Failed to get debounce clk
> omap-dma-engine omap-dma-engine: allocating channel for 62
> omap-dma-engine omap-dma-engine: allocating channel for 61
> mmc0: clock 0Hz busmode 2 powermode 1 cs 0 Vdd 19 width 0 timing 0
> omap_hsmmc omap_hsmmc.0: Set clock to 0Hz
> mmc0: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 19 width 0 timing 0
> omap_hsmmc omap_hsmmc.0: Set clock to 400000Hz
> omap_hsmmc omap_hsmmc.0: disabled
> omap_hsmmc omap_hsmmc.1: context was not lost
> omap_hsmmc omap_hsmmc.1: enabled
> omap_hsmmc omap_hsmmc.1: Failed to get debounce clk
> omap-dma-engine omap-dma-engine: allocating channel for 48
> omap-dma-engine omap-dma-engine: allocating channel for 47
> omap_hsmmc omap_hsmmc.0: context was not lost
> omap_hsmmc omap_hsmmc.0: enabled
> mmc0: mmc_rescan_try_freq: trying to init card at 400000 Hz
> mmc0: starting CMD52 arg 00000c00 flags 00000195
> omap_hsmmc omap_hsmmc.0: mmc0: CMD52, argument 0x00000c00
> omap_hsmmc omap_hsmmc.0: IRQ Status is 18000
> omap_hsmmc omap_hsmmc.0: MMC IRQ 0x18000 : ERRI CTO
> mmc0: req done (CMD52): -110: 00000000 00000000 00000000 00000000
> mmc1: clock 0Hz busmode 2 powermode 1 cs 0 Vdd 19 width 0 timing 0
> omap_hsmmc omap_hsmmc.1: Set clock to 0Hz
> mmc0: starting CMD52 arg 80000c08 flags 00000195
> omap_hsmmc omap_hsmmc.0: mmc0: CMD52, argument 0x80000c08
> omap_hsmmc omap_hsmmc.0: IRQ Status is 18000
> omap_hsmmc omap_hsmmc.0: MMC IRQ 0x18000 : ERRI CTO
> mmc0: req done (CMD52): -110: 00000000 00000000 00000000 00000000
> mmc1: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 19 width 0 timing 0
> omap_hsmmc omap_hsmmc.1: Set clock to 400000Hz
> mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 19 width 0 timing 0
> omap_hsmmc omap_hsmmc.0: Set clock to 400000Hz
> mmc0: starting CMD0 arg 00000000 flags 000000c0
> omap_hsmmc omap_hsmmc.0: mmc0: CMD0, argument 0x00000000
> omap_hsmmc omap_hsmmc.0: IRQ Status is 1
> mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
> omap_hsmmc omap_hsmmc.1: disabled
> mmc0: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 19 width 0 timing 0
> omap_hsmmc omap_hsmmc.0: Set clock to 400000Hz
> oprofile: hardware counters not available
> oprofile: using timer interrupt.
> TCP: cubic registered
> Initializing XFRM netlink socket
> NET: Registered protocol family 17
> NET: Registered protocol family 15
> lib80211: common routines for IEEE802.11 drivers
> lib80211_crypt: registered algorithm 'NULL'
> Key type dns_resolver registered
> VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 1
> voltdm_scale: No voltage scale API registered for vdd_mpu_iva
> voltdm_scale: No voltage scale API registered for vdd_core
> PM: no software I/O chain control; some wakeups may be lost
> ThumbEE CPU extension supported.
> clock: disabling unused clocks to save power
> mmc0: starting CMD8 arg 000001aa flags 000002f5
> omap_hsmmc omap_hsmmc.0: mmc0: CMD8, argument 0x000001aa
> omap_hsmmc omap_hsmmc.0: IRQ Status is 1
> mmc0: req done (CMD8): 0: 000001aa 00000000 00000000 00000000
> mmc0: starting CMD5 arg 00000000 flags 000002e1
> omap_hsmmc omap_hsmmc.0: mmc0: CMD5, argument 0x00000000
> omap_hsmmc omap_hsmmc.0: IRQ Status is 18000
> omap_hsmmc omap_hsmmc.0: MMC IRQ 0x18000 : ERRI CTO
> mmc0: req failed (CMD5): -110, retrying...
> omap_hsmmc omap_hsmmc.0: mmc0: CMD5, argument 0x00000000
> omap_hsmmc omap_hsmmc.0: IRQ Status is 18000
> omap_hsmmc omap_hsmmc.0: MMC IRQ 0x18000 : ERRI CTO
> mmc0: req failed (CMD5): -110, retrying...
> omap_hsmmc omap_hsmmc.0: mmc0: CMD5, argument 0x00000000
> omap_hsmmc omap_hsmmc.0: IRQ Status is 18000
> omap_hsmmc omap_hsmmc.0: MMC IRQ 0x18000 : ERRI CTO
> davinci_emac davinci_emac.0: using random MAC addr: 0a:e0:2b:8a:d1:27
> mmc0: req failed (CMD5): -110, retrying...
> omap_hsmmc omap_hsmmc.0: mmc0: CMD5, argument 0x00000000
> omap_hsmmc omap_hsmmc.0: IRQ Status is 18000
> omap_hsmmc omap_hsmmc.0: MMC IRQ 0x18000 : ERRI CTO
> mmc0: req done (CMD5): -110: 00000000 00000000 00000000 00000000
> mmc0: starting CMD55 arg 00000000 flags 000000f5
> omap_hsmmc omap_hsmmc.0: mmc0: CMD55, argument 0x00000000
> omap_hsmmc omap_hsmmc.0: IRQ Status is 1
> mmc0: req done (CMD55): 0: 00400120 00000000 00000000 00000000
> mmc0: starting CMD41 arg 00000000 flags 000000e1
> omap_hsmmc omap_hsmmc.0: mmc0: CMD41, argument 0x00000000
> omap_hsmmc omap_hsmmc.0: IRQ Status is 1
> mmc0: req done (CMD41): 0: 00ff8000 00000000 00000000 00000000
> mmc0: clock 400000Hz busmode 2 powermode 2 cs 0 Vdd 15 width 0 timing 0
> omap_hsmmc omap_hsmmc.0: Set clock to 400000Hz
> mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 15 width 0 timing 0
> omap_hsmmc omap_hsmmc.0: Set clock to 400000Hz
> Waiting for root device /dev/mmcblk0p2...
> mmc0: starting CMD0 arg 00000000 flags 000000c0
> omap_hsmmc omap_hsmmc.0: mmc0: CMD0, argument 0x00000000
>

>From this, one can only infer that the card is not responding at all,
and all attempts
are returning with a timeout (CTO=Command Time Out).
These (control) commands don't use DMA, so it's not a DMA issue upto this.
If the card is fine, and it worked before, I would suggest a bisect.
Meanwhile I'll check lo-master with my OMAP4 boards.

~Venkat
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