[PATCH] arm: kirkwood: Add nas440 board, Marvell 88SE6121 AHCI

Pali Rohár pali at kernel.org
Mon Mar 28 11:28:07 CEST 2022


Hello!

On Monday 28 March 2022 10:36:36 Hajo Noerenberg wrote:
> Hi Pali,
> 
> Am 28.03.2022 um 10:04 schrieb Pali Rohár:
> > On Monday 28 March 2022 09:57:41 Hajo Noerenberg wrote:
> >> I wonder if it would be a good idea to submit adding the PCI-ids for the 88SE6121 controller (drivers/ata/ahci-pci.c) as a separate patch. The controller is not specific to the NAS440, to my knowledge it is also used on the Iomega ix4-200d for example.
> > 
> > Why is this patch needed?
> 
> Sorry, but that's beyond my knowledge. Without the PCI ids the controller is handled by the generic driver.

So it does not work without that change?

> > 
> > Could you please send 'lspci -nn -vv' output from Linux?
> 
> Please find the logs below. For reference I have also attached the U-Boot logs (with / without PCI ids).

Ok, seems that the issue is that this controller has class code 0x01018f
(IDE interface [0101]; prog-if 8f) which does not match standard AHCI
class code 0x010601 (PCI_CLASS_STORAGE_SATA_AHCI).

Linux kernel has also PCI id bindings for Marvell devices 0x6145 and 0x6121:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/ata/ahci.c?h=v5.17#n557

So go ahead and send separate patch for ahci-pci.c driver to add
bindings for those two PCI ids as for devices with wrong class code it
is really needed.

Btw, instead of 0x11ab use U-Boot macro: PCI_VENDOR_ID_MARVELL

> Side note: as written in my first e-mail, I can access all hard disks and load files within U-Boot. Under Linux there are 'failed to IDENTIFY' errors.

Ideally, send this issue to linux-ide mailing list and maintainers of
linux ahci driver. I hope that they would be able to help with it.

> Regards,
> Hajo
> 
> 
> root at nas440:~# lspci -nn -vv
> 00:01.0 PCI bridge [0604]: Marvell Technology Group Ltd. 88F6281 [Kirkwood] ARM SoC [11ab:6281] (rev 03) (prog-if 00 [Normal decode])
>         Device tree node: /sys/firmware/devicetree/base/mbus at f1000000/pcie at 82000000/pcie at 1,0
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 0, Cache Line Size: 64 bytes
>         Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
>         I/O behind bridge: 00010000-00010fff [size=4K]
>         Memory behind bridge: e0000000-e00fffff [size=1M]
>         Prefetchable memory behind bridge: 00000000-000fffff [size=1M]
>         Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
>         Expansion ROM at e0100000 [virtual] [disabled] [size=2K]
>         BridgeCtl: Parity+ SERR+ NoISA- VGA- VGA16- MAbort+ >Reset- FastB2B-
>                 PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
>         Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
>                 DevCap: MaxPayload 128 bytes, PhantFunc 0
>                         ExtTag- RBE+
>                 DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
>                         RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
>                         MaxPayload 128 bytes, MaxReadReq 512 bytes
>                 DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
>                 LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <256ns, L1 unlimited
>                         ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
>                 LnkCtl: ASPM Disabled; RCB 128 bytes, Disabled- CommClk-
>                         ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>                 LnkSta: Speed 2.5GT/s (ok), Width x1 (ok)
>                         TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
>                 SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
>                         Slot #0, PowerLimit 0.000W; Interlock- NoCompl-
>                 SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
>                         Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
>                 SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
>                         Changed: MRL- PresDet- LinkState-
>                 RootCap: CRSVisible-
>                 RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
>                 RootSta: PME ReqID 0000, PMEStatus- PMEPending-
>                 DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR-
>                          10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
>                          EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
>                          FRS- LN System CLS Not Supported, TPHComp- ExtTPHComp- ARIFwd-
>                          AtomicOpsCap: Routing- 32bit- 64bit- 128bitCAS-
>                 DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled, ARIFwd-
>                          AtomicOpsCtl: ReqEn- EgressBlck-
>                 LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
>                          Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
>                          Compliance De-emphasis: -6dB
>                 LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
>                          EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
>                          Retimer- 2Retimers- CrosslinkRes: unsupported
> 
> 01:00.0 IDE interface [0101]: Marvell Technology Group Ltd. 88SE6111/6121 SATA II / PATA Controller [11ab:6121] (rev b2) (prog-if 8f [PCI native mode controller, supports both channels switched to ISA compatibility mode, supports bus mastering])
>         Subsystem: Marvell Technology Group Ltd. 88SE6111/6121 1/2 port SATA II + 1 port PATA Controller [11ab:6121]
>         Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx-
>         Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>         Latency: 0, Cache Line Size: 32 bytes
>         Interrupt: pin A routed to IRQ 40
>         Region 0: I/O ports at 10010 [size=8]
>         Region 1: I/O ports at 10020 [size=4]
>         Region 2: I/O ports at 10018 [size=8]
>         Region 3: I/O ports at 10024 [size=4]
>         Region 4: I/O ports at 10000 [size=16]
>         Region 5: Memory at e0000000 (32-bit, non-prefetchable) [size=1K]
>         Capabilities: [48] Power Management version 2
>                 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
>                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
>         Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
>                 Address: 00000000  Data: 0000
>         Capabilities: [e0] Express (v1) Legacy Endpoint, MSI 00
>                 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
>                         ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
>                 DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
>                         RlxdOrd- ExtTag- PhantFunc- AuxPwr+ NoSnoop-
>                         MaxPayload 128 bytes, MaxReadReq 512 bytes
>                 DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
>                 LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s, Exit Latency L0s <256ns
>                         ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
>                 LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk-
>                         ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>                 LnkSta: Speed 2.5GT/s (ok), Width x1 (ok)
>                         TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
>         Capabilities: [100 v1] Advanced Error Reporting
>                 UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>                 UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>                 UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
>                 CESta:  RxErr+ BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
>                 CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
>                 AERCap: First Error Pointer: 1f, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn-
>                         MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
>                 HeaderLog: 00000000 00000000 00000000 00000000
>         Kernel driver in use: ahci
>         Kernel modules: ahci
> 
> 
> /* U-Boot with 88SE6121 PCI ids: */
> 
> nas440> version
> U-Boot 2022.04-rc3-00003-ge177499b76-dirty (Mar 03 2022 - 16:58:16 +0100)
> NAS 440
> 
> nas440> pci long
> 
> Found PCI device 00.00.00:
>   vendor ID =                   0x11ab
>   device ID =                   0x6281
>   command register ID =         0x0007
>   status register =             0x0010
>   revision ID =                 0x03
>   class code =                  0x06 (Bridge device)
>   sub class code =              0x04
>   programming interface =       0x00
>   cache line =                  0x00
>   latency time =                0x00
>   header type =                 0x01
>   BIST =                        0x00
>   base address 0 =              0x00000000
>   base address 1 =              0x00000000
>   primary bus number =          0x00
>   secondary bus number =        0x01
>   subordinate bus number =      0x01
>   secondary latency timer =     0x00
>   IO base =                     0x01
>   IO limit =                    0x01
>   secondary status =            0x0000
>   memory base =                 0x9000
>   memory limit =                0x9000
>   prefetch memory base =        0xfff1
>   prefetch memory limit =       0x0001
>   prefetch memory base upper =  0x00000000
>   prefetch memory limit upper = 0x00000000
>   IO base upper 16 bits =       0xc000
>   IO limit upper 16 bits =      0xc000
>   expansion ROM base address =  0x00000000
>   interrupt line =              0x00
>   interrupt pin =               0x01
>   bridge control =              0x0000
> 
> Found PCI device 01.00.00:
>   vendor ID =                   0x11ab
>   device ID =                   0x6121
>   command register ID =         0x0007
>   status register =             0x0010
>   revision ID =                 0xb2
>   class code =                  0x01 (Mass storage controller)
>   sub class code =              0x01
>   programming interface =       0x8f
>   cache line =                  0x08
>   latency time =                0x00
>   header type =                 0x00
>   BIST =                        0x00
>   base address 0 =              0xc0000001
>   base address 1 =              0xc0000009
>   base address 2 =              0xc0000011
>   base address 3 =              0xc0000019
>   base address 4 =              0xc0000021
>   base address 5 =              0x90000000
>   cardBus CIS pointer =         0x00000000
>   sub system vendor ID =        0x11ab
>   sub system ID =               0x6121
>   expansion ROM base address =  0x00000000
>   interrupt line =              0x00
>   interrupt pin =               0x01
>   min Grant =                   0x00
>   max Latency =                 0x00
> nas440>
> 
> nas440> scsi scan
> scanning bus for devices...
> Target spinup took 0 ms.
> Target spinup took 0 ms.
> SATA link 2 timeout.
> AHCI 0001.0000 32 slots 3 ports 3 Gbps 0x7 impl SATA mode
> flags: 64bit ncq stag led pmp slum part
>   Device 0: (0:0) Vendor: ATA Prod.: WDC WD3202ABYS-0 Rev: 02.0
>             Type: Hard Disk
>             Capacity: 305245.3 MB = 298.0 GB (625142448 x 512)
>   Device 1: (1:0) Vendor: ATA Prod.: FUJITSU MHZ2160B Rev: 0084
>             Type: Hard Disk
>             Capacity: 152627.8 MB = 149.0 GB (312581808 x 512)
> nas440>
> 
> nas440> dm tree
>  Class     Index  Probed  Driver                Name
> -----------------------------------------------------------
>  root          0  [ + ]   root_driver           root_driver
>  simple_bus    0  [ + ]   simple_bus            |-- mbus at f1000000
>  misc          0  [ + ]   pcie_mvebu_base       |   `-- pcie at 82000000
>  pci           0  [ + ]   pcie_mvebu            |       `-- pcie0.0
>  pci           1  [ + ]   pci_bridge_drv        |           `-- pci_0:0.0
>  ahci          1  [ + ]   ahci_pci              |               `-- ahci_pci
>  scsi          0  [ + ]   ahci_scsi             |                   `-- ahci_scsi
>  blk           0  [   ]   scsi_blk              |                       |-- ahci_scsi.id0lun0
>  blk           1  [   ]   scsi_blk              |                       `-- ahci_scsi.id1lun0
>  simple_bus    1  [ + ]   simple_bus            |-- ocp at f1000000
>  gpio          0  [   ]   gpio_mvebu            |   |-- gpio at 10100
>  gpio          1  [   ]   gpio_mvebu            |   |-- gpio at 10140
>  usb           0  [   ]   ehci_mvebu            |   |-- ehci at 50000
>  ethernet      0  [ + ]   mvgbe                 |   |-- ethernet-controller at 72000
>  ethernet      1  [ + ]   mvgbe                 |   |-- ethernet-controller at 76000
>  rtc           0  [   ]   rtc-mv                |   |-- rtc at 10300
>  ahci          0  [   ]   sata_mv_ahci          |   `-- sata at 80000
>  simple_bus    2  [   ]   simple_bus            `-- regulators
> nas440>
> 
> 
> /* U-Boot without 88SE6121 PCI ids: */
> 
> nas440> pci enum
> pcie0.0: Link up
> nas440> scsi scan
> scanning bus for devices...
> nas440> dm tree
>  Class     Index  Probed  Driver                Name
> -----------------------------------------------------------
>  root          0  [ + ]   root_driver           root_driver
>  simple_bus    0  [ + ]   simple_bus            |-- mbus at f1000000
>  misc          0  [ + ]   pcie_mvebu_base       |   `-- pcie at 82000000
>  pci           0  [ + ]   pcie_mvebu            |       `-- pcie0.0
>  pci           1  [ + ]   pci_bridge_drv        |           `-- pci_0:0.0
>  pci_generi    0  [   ]   pci_generic_drv       |               `-- pci_1:0.0
>  simple_bus    1  [ + ]   simple_bus            |-- ocp at f1000000
>  gpio          0  [   ]   gpio_mvebu            |   |-- gpio at 10100
>  gpio          1  [   ]   gpio_mvebu            |   |-- gpio at 10140
>  usb           0  [   ]   ehci_mvebu            |   |-- ehci at 50000
>  ethernet      0  [ + ]   mvgbe                 |   |-- ethernet-controller at 72000
>  ethernet      1  [ + ]   mvgbe                 |   |-- ethernet-controller at 76000
>  rtc           0  [   ]   rtc-mv                |   |-- rtc at 10300
>  ahci          0  [   ]   sata_mv_ahci          |   `-- sata at 80000
>  simple_bus    2  [   ]   simple_bus            `-- regulators
> nas440>
> 


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