[RFC] Accessing QSPI device under mtd

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* [RFC] Accessing QSPI device under mtd
@ 2020-10-29 19:47 Dinh Nguyen
  2020-10-30  4:42 ` Vignesh Raghavendra
  0 siblings, 1 reply; 7+ messages in thread
From: Dinh Nguyen @ 2020-10-29 19:47 UTC (permalink / raw)
  To: linux-spi
  Cc: Ramuthevar, Vadivel MuruganX, Vignesh R, Tudor.Ambarus,
	Mark Brown, Richard Gong

Hi,

With commit "a314f6367787ee mtd: spi-nor: Convert cadence-quadspi to use
spi-mem framework", I can no longer access the QSPI device under
/dev/mtd<n> on the Intel Stratix10 and Agilex platforms and is breaking
a few tests we have in-house.

Can someone point me to how to access the QSPI device using the spi-mem
framework?

Thanks,
Dinh

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [RFC] Accessing QSPI device under mtd
  2020-10-29 19:47 [RFC] Accessing QSPI device under mtd Dinh Nguyen
@ 2020-10-30  4:42 ` Vignesh Raghavendra
  2020-10-30 19:23   ` Dinh Nguyen
  0 siblings, 1 reply; 7+ messages in thread
From: Vignesh Raghavendra @ 2020-10-30  4:42 UTC (permalink / raw)
  To: Dinh Nguyen, linux-spi
  Cc: Ramuthevar, Vadivel MuruganX, Tudor.Ambarus, Mark Brown,
	Richard Gong

Hi,

On 10/30/20 1:17 AM, Dinh Nguyen wrote:
> Hi,
> 
> With commit "a314f6367787ee mtd: spi-nor: Convert cadence-quadspi to use
> spi-mem framework", I can no longer access the QSPI device under
> /dev/mtd<n> on the Intel Stratix10 and Agilex platforms and is breaking
> a few tests we have in-house.
> 
> Can someone point me to how to access the QSPI device using the spi-mem
> framework?
> 

There is should be no visible change to userspace. /dev/mtdX devices
should still get created based on cmdline or ofpart.

Could you elaborate what fails? Is the flash detected and /dev/mtdX
devices created? Is the issue with read or write or erase?

Also what is the kernel version and .config being used? Full bootlog +
testcase that fails would be helpful.

Regards
Vignesh

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [RFC] Accessing QSPI device under mtd
  2020-10-30  4:42 ` Vignesh Raghavendra
@ 2020-10-30 19:23   ` Dinh Nguyen
  2020-10-31  5:24     ` Vignesh Raghavendra
  0 siblings, 1 reply; 7+ messages in thread
From: Dinh Nguyen @ 2020-10-30 19:23 UTC (permalink / raw)
  To: Vignesh Raghavendra, linux-spi
  Cc: Ramuthevar, Vadivel MuruganX, Tudor.Ambarus, Mark Brown,
	Richard Gong

Hi Vignesh,

I'm using the standard arm64 defconfig. Attached are 2 bootlogs, v5.8
and v5.9. On the v5.8, I can see the QSPI devices under /dev/mtdX, and
has this in the bootlog:

[    1.073562] cadence-qspi ff8d2000.spi: mt25qu02g (262144 Kbytes)
[    1.079865] 2 fixed-partitions partitions found on MTD device
ff8d2000.spi.0
[    1.086917] Creating 2 MTD partitions on "ff8d2000.spi.0":
[    1.092401] 0x000000000000-0x000003fe0000 : "Boot and fpga data"
[    1.103073] 0x000003fe0000-0x000010000000 : "Root Filesystem - JFFS2"

In v5.9, I don't see the above output in the bootlog, and there are no
/dev/mtdX. I did a bisect and it resulted in commit "a314f6367787ee mtd:
spi-nor: Convert cadence-quadspi to use spi-mem framework". If I revert
this patch, then QSPI device is under /dev/mtdX.

There were no changes in the Stratix10 DTS files between v5.8 and v5.9
that should have any affect on QSPI.

v5.9:

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.9.0 (dinguyen@linux-builds1)
(aarch64-linux-gnu-gcc (Linaro GCC 7.2-2017.11) 7.2.1 20171011, GNU ld
(Linaro_Binutils-2017.11) 2.28.2.20170706) #34 SMP PREEMPT Fri Oct 30
13:44:04 CDT 2020
[    0.000000] Machine model: SoCFPGA Stratix 10 SoCDK
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at
0x0000000000000000, size 16 MiB
[    0.000000] OF: reserved mem: initialized node svcbuffer@0,
compatible id shared-dma-pool
[    0.000000] cma: Reserved 32 MiB at 0x000000007d800000
[    0.000000] earlycon: uart0 at MMIO32 0x00000000ffc02000 (options
'115200n8')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x1ff7f2100-0x1ff7f3fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000001000000-0x000000003fffffff]
[    0.000000]   DMA32    [mem 0x0000000040000000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x00000001ffffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000001000000-0x000000007fffffff]
[    0.000000]   node   0: [mem 0x0000000180000000-0x00000001ffffffff]
[    0.000000] Initmem setup node 0 [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv65535.65535 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] percpu: Embedded 23 pages/cpu s54104 r8192 d31912 u94208
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages:
1028160
[    0.000000] Policy zone: Normal
[    0.000000] Dentry cache hash table entries: 524288 (order: 10,
4194304 bytes, linear)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152
bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x3bfff000-0x3ffff000] (64MB)
[    0.000000] Memory: 3968324K/4177920K available (14268K kernel code,
2280K rwdata, 7676K rodata, 5760K init, 487K bss, 176828K reserved,
32768K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to
nr_cpu_ids=4.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay
is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from
start_kernel+0x314/0x4f0 with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 400.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff
max_cycles: 0x5c4093a7d1, max_idle_ns: 440795210635 ns
[    0.000004] sched_clock: 56 bits at 400MHz, resolution 2ns, wraps
every 4398046511103ns
[    0.008243] Console: colour dummy device 80x25
[    0.012675] printk: console [tty0] enabled
[    0.016763] printk: bootconsole [uart0] disabled
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.9.0 (dinguyen@linux-builds1)
(aarch64-linux-gnu-gcc (Linaro GCC 7.2-2017.11) 7.2.1 20171011, GNU ld
(Linaro_Binutils-2017.11) 2.28.2.20170706) #34 SMP PREEMPT Fri Oct 30
13:44:04 CDT 2020
[    0.000000] Machine model: SoCFPGA Stratix 10 SoCDK
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at
0x0000000000000000, size 16 MiB
[    0.000000] OF: reserved mem: initialized node svcbuffer@0,
compatible id shared-dma-pool
[    0.000000] cma: Reserved 32 MiB at 0x000000007d800000
[    0.000000] earlycon: uart0 at MMIO32 0x00000000ffc02000 (options
'115200n8')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x1ff7f2100-0x1ff7f3fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000001000000-0x000000003fffffff]
[    0.000000]   DMA32    [mem 0x0000000040000000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x00000001ffffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000001000000-0x000000007fffffff]
[    0.000000]   node   0: [mem 0x0000000180000000-0x00000001ffffffff]
[    0.000000] Initmem setup node 0 [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv65535.65535 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] percpu: Embedded 23 pages/cpu s54104 r8192 d31912 u94208
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages:
1028160
[    0.000000] Policy zone: Normal
[    0.000000] Dentry cache hash table entries: 524288 (order: 10,
4194304 bytes, linear)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152
bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x3bfff000-0x3ffff000] (64MB)
[    0.000000] Memory: 3968324K/4177920K available (14268K kernel code,
2280K rwdata, 7676K rodata, 5760K init, 487K bss, 176828K reserved,
32768K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to
nr_cpu_ids=4.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay
is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from
start_kernel+0x314/0x4f0 with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 400.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff
max_cycles: 0x5c4093a7d1, max_idle_ns: 440795210635 ns
[    0.000004] sched_clock: 56 bits at 400MHz, resolution 2ns, wraps
every 4398046511103ns
[    0.008243] Console: colour dummy device 80x25
[    0.012675] printk: console [tty0] enabled
[    0.016763] printk: bootconsole [uart0] disabled
[    0.021451] Calibrating delay loop (skipped), value calculated using
timer frequency.. 800.00 BogoMIPS (lpj=1600000)
[    0.021475] pid_max: default: 32768 minimum: 301
[    0.021567] LSM: Security Framework initializing
[    0.021651] Mount-cache hash table entries: 8192 (order: 4, 65536
bytes, linear)
[    0.021686] Mountpoint-cache hash table entries: 8192 (order: 4,
65536 bytes, linear)
[    0.023233] rcu: Hierarchical SRCU implementation.
[    0.024262] EFI services will not be available.
[    0.024460] smp: Bringing up secondary CPUs ...
[    0.024866] Detected VIPT I-cache on CPU1
[    0.024914] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.025334] Detected VIPT I-cache on CPU2
[    0.025363] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[    0.025792] Detected VIPT I-cache on CPU3
[    0.025820] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[    0.025882] smp: Brought up 1 node, 4 CPUs
[    0.025939] SMP: Total of 4 processors activated.
[    0.025952] CPU features: detected: 32-bit EL0 Support
[    0.025964] CPU features: detected: CRC32 instructions
[    0.025976] CPU features: detected: 32-bit EL1 Support
[    0.037628] CPU: All CPU(s) started at EL2
[    0.037663] alternatives: patching kernel code
[    0.039512] devtmpfs: initialized
[    0.042617] KASLR disabled due to lack of seed
[    0.042964] clocksource: jiffies: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.042995] futex hash table entries: 1024 (order: 4, 65536 bytes,
linear)
[    0.044205] pinctrl core: initialized pinctrl subsystem
[    0.045323] DMI not present or invalid.
[    0.045954] NET: Registered protocol family 16
[    0.047280] DMA: preallocated 512 KiB GFP_KERNEL pool for atomic
allocations
[    0.047430] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA pool for
atomic allocations
[    0.047609] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA32 pool for
atomic allocations
[    0.047655] audit: initializing netlink subsys (disabled)
[    0.047820] audit: type=2000 audit(0.040:1): state=initialized
audit_enabled=0 res=1
[    0.048694] thermal_sys: Registered thermal governor 'step_wise'
[    0.048697] thermal_sys: Registered thermal governor 'power_allocator'
[    0.048897] cpuidle: using governor menu
[    0.049188] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.049264] ASID allocator initialised with 65536 entries
[    0.050473] Serial: AMBA PL011 UART driver
[    0.057486] OF: /soc/gpio@ffc03300/gpio-controller@0: could not find
phandle
[    0.058265] OF: /soc/gpio@ffc03300/gpio-controller@0: could not find
phandle
[    0.072286] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.072307] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.072322] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.072337] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    0.073383] cryptd: max_cpu_qlen set to 1000
[    0.075337] ACPI: Interpreter disabled.
[    0.076717] iommu: Default domain type: Translated
[    0.076944] vgaarb: loaded
[    0.077273] SCSI subsystem initialized
[    0.077625] usbcore: registered new interface driver usbfs
[    0.077673] usbcore: registered new interface driver hub
[    0.077741] usbcore: registered new device driver usb
[    0.077878] usb_phy_generic soc:usbphy@0: supply vcc not found, using
dummy regulator
[    0.078567] pps_core: LinuxPPS API ver. 1 registered
[    0.078581] pps_core: Software ver. 5.3.6 - Copyright 2005-2007
Rodolfo Giometti <giometti@linux.it>
[    0.078609] PTP clock support registered
[    0.078714] EDAC MC: Ver: 3.0.0
[    0.080102] Intel Service Layer Driver Initialized
[    0.080797] FPGA manager framework
[    0.080889] Advanced Linux Sound Architecture Driver Initialized.
[    0.081724] clocksource: Switched to clocksource arch_sys_counter
[    0.081935] VFS: Disk quotas dquot_6.6.0
[    0.081999] VFS: Dquot-cache hash table entries: 512 (order 0, 4096
bytes)
[    0.082267] pnp: PnP ACPI: disabled
[    0.088209] NET: Registered protocol family 2
[    0.088623] tcp_listen_portaddr_hash hash table entries: 2048 (order:
3, 32768 bytes, linear)
[    0.088692] TCP established hash table entries: 32768 (order: 6,
262144 bytes, linear)
[    0.088954] TCP bind hash table entries: 32768 (order: 7, 524288
bytes, linear)
[    0.089453] TCP: Hash tables configured (established 32768 bind 32768)
[    0.089575] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear)
[    0.089677] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes,
linear)
[    0.089916] NET: Registered protocol family 1
[    0.090275] RPC: Registered named UNIX socket transport module.
[    0.090289] RPC: Registered udp transport module.
[    0.090301] RPC: Registered tcp transport module.
[    0.090312] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.090333] PCI: CLS 0 bytes, default 64
[    0.091238] hw perfevents: enabled with armv8_pmuv3 PMU driver, 7
counters available
[    0.091517] kvm [1]: IPA Size Limit: 40bits
[    0.092440] kvm [1]: Hyp mode initialized successfully
[    0.095507] Initialise system trusted keyrings
[    0.095633] workingset: timestamp_bits=44 max_order=20 bucket_order=0
[    0.102243] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.102915] NFS: Registering the id_resolver key type
[    0.102950] Key type id_resolver registered
[    0.102962] Key type id_legacy registered
[    0.103061] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.103188] 9p: Installing v9fs 9p2000 file system support
[    0.147015] Key type asymmetric registered
[    0.147030] Asymmetric key parser 'x509' registered
[    0.147072] Block layer SCSI generic (bsg) driver version 0.4 loaded
(major 245)
[    0.147091] io scheduler mq-deadline registered
[    0.147103] io scheduler kyber registered
[    0.154865] EINJ: ACPI disabled.
[    0.165130] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.166994] ffc02000.serial: ttyS0 at MMIO 0xffc02000 (irq = 25,
base_baud = 6250000) is a 16550A
[    1.038814] printk: console [ttyS0] enabled
[    1.043878] SuperH (H)SCI(F) driver initialized
[    1.048799] msm_serial: driver initialized
[    1.054045] cacheinfo: Unable to detect cache hierarchy for CPU 0
[    1.067040] loop: module loaded
[    1.070987] megasas: 07.714.04.00-rc1
[    1.079406] libphy: Fixed MDIO Bus: probed
[    1.084219] tun: Universal TUN/TAP device driver, 1.6
[    1.089867] thunder_xcv, ver 1.0
[    1.093119] thunder_bgx, ver 1.0
[    1.096384] nicpf, ver 1.0
[    1.099954] hclge is initializing
[    1.103302] hns3: Hisilicon Ethernet Network Driver for Hip08 Family
- version
[    1.110515] hns3: Copyright (c) 2017 Huawei Corporation.
[    1.115855] e1000: Intel(R) PRO/1000 Network Driver
[    1.120725] e1000: Copyright (c) 1999-2006 Intel Corporation.
[    1.126501] e1000e: Intel(R) PRO/1000 Network Driver
[    1.131458] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    1.137402] igb: Intel(R) Gigabit Ethernet Network Driver
[    1.142789] igb: Copyright (c) 2007-2014 Intel Corporation.
[    1.148382] igbvf: Intel(R) Gigabit Virtual Function Network Driver
[    1.154636] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[    1.160790] sky2: driver version 1.30
[    1.165125] socfpga-dwmac ff800000.ethernet: IRQ eth_wake_irq not found
[    1.171731] socfpga-dwmac ff800000.ethernet: IRQ eth_lpi not found
[    1.178011] socfpga-dwmac ff800000.ethernet: PTP uses main clock
[    1.184244] socfpga-dwmac ff800000.ethernet: User ID: 0x11, Synopsys
ID: 0x37
[    1.191373] socfpga-dwmac ff800000.ethernet:         DWMAC1000
[    1.196593] socfpga-dwmac ff800000.ethernet: DMA HW capability
register supported
[    1.204065] socfpga-dwmac ff800000.ethernet: RX Checksum Offload
Engine supported
[    1.211533] socfpga-dwmac ff800000.ethernet: COE Type 2
[    1.216749] socfpga-dwmac ff800000.ethernet: TX Checksum insertion
supported
[    1.223782] socfpga-dwmac ff800000.ethernet: Enhanced/Alternate
descriptors
[    1.230729] socfpga-dwmac ff800000.ethernet: Enabled extended descriptors
[    1.237502] socfpga-dwmac ff800000.ethernet: Ring mode enabled
[    1.243325] socfpga-dwmac ff800000.ethernet: Enable RX Mitigation via
HW Watchdog Timer
[    1.251318] socfpga-dwmac ff800000.ethernet: device MAC address
62:21:ab:72:92:dc
[    1.259232] libphy: stmmac: probed
[    1.264638] VFIO - User Level meta-driver version: 0.3
[    1.270859] dwc2 ffb00000.usb: supply vusb_d not found, using dummy
regulator
[    1.278116] dwc2 ffb00000.usb: supply vusb_a not found, using dummy
regulator
[    1.285467] dwc2 ffb00000.usb: EPs: 16, dedicated fifos, 8064 entries
in SPRAM
[    1.292954] dwc2 ffb00000.usb: DWC OTG Controller
[    1.297673] dwc2 ffb00000.usb: new USB bus registered, assigned bus
number 1
[    1.304727] dwc2 ffb00000.usb: irq 26, io mem 0xffb00000
[    1.310589] hub 1-0:1.0: USB hub found
[    1.314362] hub 1-0:1.0: 1 port detected
[    1.319433] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.325984] ehci-pci: EHCI PCI platform driver
[    1.330455] ehci-platform: EHCI generic platform driver
[    1.335779] ehci-orion: EHCI orion driver
[    1.339868] ehci-exynos: EHCI Exynos driver
[    1.344118] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.350294] ohci-pci: OHCI PCI platform driver
[    1.354768] ohci-platform: OHCI generic platform driver
[    1.360066] ohci-exynos: OHCI Exynos driver
[    1.364641] usbcore: registered new interface driver usb-storage
[    1.372661] i2c /dev entries driver
[    1.381578] sdhci: Secure Digital Host Controller Interface driver
[    1.387779] sdhci: Copyright(c) Pierre Ossman
[    1.392535] Synopsys Designware Multimedia Card Interface Driver
[    1.398770] dw_mmc ff808000.dwmmc0: IDMAC supports 32-bit address mode.
[    1.405392] dw_mmc ff808000.dwmmc0: Using internal DMA controller.
[    1.411568] dw_mmc ff808000.dwmmc0: Version ID is 280a
[    1.416736] dw_mmc ff808000.dwmmc0: DW MMC controller at irq 11,32
bit host data width,1024 deep fifo
[    1.426116] mmc_host mmc0: card is polling.
[    1.442905] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req
400000Hz, actual 396825HZ div = 63)
[    1.465765] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.472784] ledtrig-cpu: registered to indicate activity on CPUs
[    1.480005] usbcore: registered new interface driver usbhid
[    1.485589] usbhid: USB HID core driver
[    1.493170] NET: Registered protocol family 17
[    1.497783] 9pnet: Installing 9P2000 support
[    1.502113] Key type dns_resolver registered
[    1.506733] registered taskstats version 1
[    1.510832] Loading compiled-in X.509 certificates
[    1.517839] dma-pl330 ffda0000.pdma: Loaded driver for PL330 DMAC-341330
[    1.518009] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req
50000000Hz, actual 50000000HZ div = 0)
[    1.524537] dma-pl330 ffda0000.pdma:         DBUFF-512x8bytes
Num_Chans-8 Num_Peri-32 Num_Events-8
[    1.534290] mmc0: new high speed SDHC card at address 0007
[    1.548816] mmcblk0: mmc0:0007 SD4GB 3.71 GiB
[    1.555540]  mmcblk0: p1 p2
[    1.613738] socfpga-dwmac ff800000.ethernet eth0: PHY [stmmac-0:04]
driver [Micrel KSZ9031 Gigabit PHY] (irq=POLL)
[    1.635567] socfpga-dwmac ff800000.ethernet eth0: No Safety Features
support found
[    1.643135] socfpga-dwmac ff800000.ethernet eth0: IEEE 1588-2008
Advanced Timestamp supported
[    1.651772] socfpga-dwmac ff800000.ethernet eth0: registered PTP clock
[    1.658296] socfpga-dwmac ff800000.ethernet eth0: configuring for
phy/rgmii link mode
[    1.845763] usb 1-1: new high-speed USB device number 2 using dwc2
[    2.060679] usb-storage 1-1:1.0: USB Mass Storage device detected
[    2.067104] scsi host0: usb-storage 1-1:1.0
[    3.074277] scsi 0:0:0:0: Direct-Access
 0.00 PQ: 0 ANSI: 2
[    3.082874] sd 0:0:0:0: [sda] 15773696 512-byte logical blocks: (8.08
GB/7.52 GiB)
[    3.090564] sd 0:0:0:0: [sda] Write Protect is off
[    3.095508] sd 0:0:0:0: [sda] Asking for cache data failed
[    3.100989] sd 0:0:0:0: [sda] Assuming drive cache: write through
[    3.109209]  sda: sda1
[    3.123423] sd 0:0:0:0: [sda] Attached SCSI removable disk
[    3.715320] socfpga-dwmac ff800000.ethernet eth0: Link is Up -
100Mbps/Full - flow control rx/tx
[    3.737733] Sending DHCP requests .., OK


v5.8

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.8.0 (dinguyen@linux-builds1)
(aarch64-linux-gnu-gcc (Linaro GCC 7.2-2017.11) 7.2.1 20171011, GNU ld
(Linaro_Binutils-2017.11) 2.28.2.20170706) #33 SMP PREEMPT Fri Oct 30
13:28:16 CDT 2020
[    0.000000] Machine model: SoCFPGA Stratix 10 SoCDK
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at
0x0000000000000000, size 16 MiB
[    0.000000] OF: reserved mem: initialized node svcbuffer@0,
compatible id shared-dma-pool
[    0.000000] cma: Reserved 32 MiB at 0x000000007d800000
[    0.000000] earlycon: uart0 at MMIO32 0x00000000ffc02000 (options
'115200n8')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x1ff7f3100-0x1ff7f4fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000001000000-0x000000003fffffff]
[    0.000000]   DMA32    [mem 0x0000000040000000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x00000001ffffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000001000000-0x000000007fffffff]
[    0.000000]   node   0: [mem 0x0000000180000000-0x00000001ffffffff]
[    0.000000] Initmem setup node 0 [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv65535.65535 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] percpu: Embedded 23 pages/cpu s53912 r8192 d32104 u94208
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages:
1028160
[    0.000000] Policy zone: Normal
[    0.000000] Dentry cache hash table entries: 524288 (order: 10,
4194304 bytes, linear)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152
bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x3bfff000-0x3ffff000] (64MB)
[    0.000000] Memory: 3969032K/4177920K available (14012K kernel code,
2170K rwdata, 7516K rodata, 5632K init, 483K bss, 176120K reserved,
32768K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to
nr_cpu_ids=4.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay
is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from
start_kernel+0x314/0x4f0 with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 400.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff
max_cycles: 0x5c4093a7d1, max_idle_ns: 440795210635 ns
[    0.000004] sched_clock: 56 bits at 400MHz, resolution 2ns, wraps
every 4398046511103ns
[    0.008248] Console: colour dummy device 80x25
[    0.012680] printk: console [tty0] enabled
[    0.016769] printk: bootconsole [uart0] disabled
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.8.0 (dinguyen@linux-builds1)
(aarch64-linux-gnu-gcc (Linaro GCC 7.2-2017.11) 7.2.1 20171011, GNU ld
(Linaro_Binutils-2017.11) 2.28.2.20170706) #33 SMP PREEMPT Fri Oct 30
13:28:16 CDT 2020
[    0.000000] Machine model: SoCFPGA Stratix 10 SoCDK
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created DMA memory pool at
0x0000000000000000, size 16 MiB
[    0.000000] OF: reserved mem: initialized node svcbuffer@0,
compatible id shared-dma-pool
[    0.000000] cma: Reserved 32 MiB at 0x000000007d800000
[    0.000000] earlycon: uart0 at MMIO32 0x00000000ffc02000 (options
'115200n8')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] NUMA: No NUMA configuration found
[    0.000000] NUMA: Faking a node at [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] NUMA: NODE_DATA [mem 0x1ff7f3100-0x1ff7f4fff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000001000000-0x000000003fffffff]
[    0.000000]   DMA32    [mem 0x0000000040000000-0x00000000ffffffff]
[    0.000000]   Normal   [mem 0x0000000100000000-0x00000001ffffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000001000000-0x000000007fffffff]
[    0.000000]   node   0: [mem 0x0000000180000000-0x00000001ffffffff]
[    0.000000] Initmem setup node 0 [mem
0x0000000001000000-0x00000001ffffffff]
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv65535.65535 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.0
[    0.000000] percpu: Embedded 23 pages/cpu s53912 r8192 d32104 u94208
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages:
1028160
[    0.000000] Policy zone: Normal
[    0.000000] Dentry cache hash table entries: 524288 (order: 10,
4194304 bytes, linear)
[    0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152
bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x3bfff000-0x3ffff000] (64MB)
[    0.000000] Memory: 3969032K/4177920K available (14012K kernel code,
2170K rwdata, 7516K rodata, 5632K init, 483K bss, 176120K reserved,
32768K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to
nr_cpu_ids=4.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay
is 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from
start_kernel+0x314/0x4f0 with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 400.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff
max_cycles: 0x5c4093a7d1, max_idle_ns: 440795210635 ns
[    0.000004] sched_clock: 56 bits at 400MHz, resolution 2ns, wraps
every 4398046511103ns
[    0.008248] Console: colour dummy device 80x25
[    0.012680] printk: console [tty0] enabled
[    0.016769] printk: bootconsole [uart0] disabled
[    0.021460] Calibrating delay loop (skipped), value calculated using
timer frequency.. 800.00 BogoMIPS (lpj=1600000)
[    0.021483] pid_max: default: 32768 minimum: 301
[    0.021580] LSM: Security Framework initializing
[    0.021666] Mount-cache hash table entries: 8192 (order: 4, 65536
bytes, linear)
[    0.021701] Mountpoint-cache hash table entries: 8192 (order: 4,
65536 bytes, linear)
[    0.023241] rcu: Hierarchical SRCU implementation.
[    0.024252] EFI services will not be available.
[    0.024452] smp: Bringing up secondary CPUs ...
[    0.024859] Detected VIPT I-cache on CPU1
[    0.024910] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.025337] Detected VIPT I-cache on CPU2
[    0.025365] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[    0.025798] Detected VIPT I-cache on CPU3
[    0.025825] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[    0.025888] smp: Brought up 1 node, 4 CPUs
[    0.025944] SMP: Total of 4 processors activated.
[    0.025956] CPU features: detected: 32-bit EL0 Support
[    0.025969] CPU features: detected: CRC32 instructions
[    0.025981] CPU features: detected: 32-bit EL1 Support
[    0.037553] CPU: All CPU(s) started at EL2
[    0.037589] alternatives: patching kernel code
[    0.039396] devtmpfs: initialized
[    0.042341] KASLR disabled due to lack of seed
[    0.042680] clocksource: jiffies: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.042711] futex hash table entries: 1024 (order: 4, 65536 bytes,
linear)
[    0.043965] pinctrl core: initialized pinctrl subsystem
[    0.044990] thermal_sys: Registered thermal governor 'step_wise'
[    0.044994] thermal_sys: Registered thermal governor 'power_allocator'
[    0.045123] DMI not present or invalid.
[    0.045775] NET: Registered protocol family 16
[    0.046320] DMA: preallocated 512 KiB GFP_KERNEL pool for atomic
allocations
[    0.046468] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA pool for
atomic allocations
[    0.046613] DMA: preallocated 512 KiB GFP_KERNEL|GFP_DMA32 pool for
atomic allocations
[    0.046658] audit: initializing netlink subsys (disabled)
[    0.046818] audit: type=2000 audit(0.040:1): state=initialized
audit_enabled=0 res=1
[    0.047790] cpuidle: using governor menu
[    0.048057] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.048134] ASID allocator initialised with 65536 entries
[    0.049312] Serial: AMBA PL011 UART driver
[    0.055892] OF: /soc/gpio@ffc03300/gpio-controller@0: could not find
phandle
[    0.056333] OF: /soc/gpio@ffc03300/gpio-controller@0: could not find
phandle
[    0.069208] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.069230] HugeTLB registered 32.0 MiB page size, pre-allocated 0 pages
[    0.069246] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.069261] HugeTLB registered 64.0 KiB page size, pre-allocated 0 pages
[    0.070365] cryptd: max_cpu_qlen set to 1000
[    0.072305] ACPI: Interpreter disabled.
[    0.073536] iommu: Default domain type: Translated
[    0.073767] vgaarb: loaded
[    0.074083] SCSI subsystem initialized
[    0.074451] usbcore: registered new interface driver usbfs
[    0.074505] usbcore: registered new interface driver hub
[    0.074571] usbcore: registered new device driver usb
[    0.074706] usb_phy_generic soc:usbphy@0: supply vcc not found, using
dummy regulator
[    0.075304] pps_core: LinuxPPS API ver. 1 registered
[    0.075318] pps_core: Software ver. 5.3.6 - Copyright 2005-2007
Rodolfo Giometti <giometti@linux.it>
[    0.075346] PTP clock support registered
[    0.075449] EDAC MC: Ver: 3.0.0
[    0.076804] Intel Service Layer Driver Initialized
[    0.077474] FPGA manager framework
[    0.077565] Advanced Linux Sound Architecture Driver Initialized.
[    0.078390] clocksource: Switched to clocksource arch_sys_counter
[    0.078600] VFS: Disk quotas dquot_6.6.0
[    0.078662] VFS: Dquot-cache hash table entries: 512 (order 0, 4096
bytes)
[    0.078864] pnp: PnP ACPI: disabled
[    0.084675] NET: Registered protocol family 2
[    0.085074] tcp_listen_portaddr_hash hash table entries: 2048 (order:
3, 32768 bytes, linear)
[    0.085145] TCP established hash table entries: 32768 (order: 6,
262144 bytes, linear)
[    0.085405] TCP bind hash table entries: 32768 (order: 7, 524288
bytes, linear)
[    0.085900] TCP: Hash tables configured (established 32768 bind 32768)
[    0.086021] UDP hash table entries: 2048 (order: 4, 65536 bytes, linear)
[    0.086123] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes,
linear)
[    0.086343] NET: Registered protocol family 1
[    0.086783] RPC: Registered named UNIX socket transport module.
[    0.086798] RPC: Registered udp transport module.
[    0.086810] RPC: Registered tcp transport module.
[    0.086821] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.086842] PCI: CLS 0 bytes, default 64
[    0.087769] hw perfevents: enabled with armv8_pmuv3 PMU driver, 7
counters available
[    0.088031] kvm [1]: IPA Size Limit: 40bits
[    0.088954] kvm [1]: Hyp mode initialized successfully
[    0.092147] Initialise system trusted keyrings
[    0.092268] workingset: timestamp_bits=44 max_order=20 bucket_order=0
[    0.098852] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.099540] NFS: Registering the id_resolver key type
[    0.099571] Key type id_resolver registered
[    0.099583] Key type id_legacy registered
[    0.099602] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.099766] 9p: Installing v9fs 9p2000 file system support
[    0.144215] Key type asymmetric registered
[    0.144230] Asymmetric key parser 'x509' registered
[    0.144276] Block layer SCSI generic (bsg) driver version 0.4 loaded
(major 245)
[    0.144295] io scheduler mq-deadline registered
[    0.144308] io scheduler kyber registered
[    0.151925] EINJ: ACPI disabled.
[    0.161970] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.163767] ffc02000.serial: ttyS0 at MMIO 0xffc02000 (irq = 25,
base_baud = 6250000) is a 16550A
[    1.035736] printk: console [ttyS0] enabled
[    1.040752] SuperH (H)SCI(F) driver initialized
[    1.045679] msm_serial: driver initialized
[    1.050922] cacheinfo: Unable to detect cache hierarchy for CPU 0
[    1.063841] loop: module loaded
[    1.067786] megasas: 07.714.04.00-rc1
[    1.073562] cadence-qspi ff8d2000.spi: mt25qu02g (262144 Kbytes)
[    1.079865] 2 fixed-partitions partitions found on MTD device
ff8d2000.spi.0
[    1.086917] Creating 2 MTD partitions on "ff8d2000.spi.0":
[    1.092401] 0x000000000000-0x000003fe0000 : "Boot and fpga data"
[    1.103073] 0x000003fe0000-0x000010000000 : "Root Filesystem - JFFS2"
[    1.113616] libphy: Fixed MDIO Bus: probed
[    1.118466] tun: Universal TUN/TAP device driver, 1.6
[    1.124085] thunder_xcv, ver 1.0
[    1.127350] thunder_bgx, ver 1.0
[    1.130612] nicpf, ver 1.0
[    1.134155] hclge is initializing
[    1.137510] hns3: Hisilicon Ethernet Network Driver for Hip08 Family
- version
[    1.144720] hns3: Copyright (c) 2017 Huawei Corporation.
[    1.150065] e1000: Intel(R) PRO/1000 Network Driver - version
7.3.21-k8-NAPI
[    1.157099] e1000: Copyright (c) 1999-2006 Intel Corporation.
[    1.162870] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[    1.168691] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    1.174632] igb: Intel(R) Gigabit Ethernet Network Driver - version
5.6.0-k
[    1.181579] igb: Copyright (c) 2007-2014 Intel Corporation.
[    1.187184] igbvf: Intel(R) Gigabit Virtual Function Network Driver -
version 2.4.0-k
[    1.194997] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[    1.201146] sky2: driver version 1.30
[    1.205343] socfpga-dwmac ff800000.ethernet: IRQ eth_wake_irq not found
[    1.211950] socfpga-dwmac ff800000.ethernet: IRQ eth_lpi not found
[    1.218231] socfpga-dwmac ff800000.ethernet: PTP uses main clock
[    1.224433] socfpga-dwmac ff800000.ethernet: User ID: 0x11, Synopsys
ID: 0x37
[    1.231561] socfpga-dwmac ff800000.ethernet:         DWMAC1000
[    1.236782] socfpga-dwmac ff800000.ethernet: DMA HW capability
register supported
[    1.244255] socfpga-dwmac ff800000.ethernet: RX Checksum Offload
Engine supported
[    1.251724] socfpga-dwmac ff800000.ethernet: COE Type 2
[    1.256942] socfpga-dwmac ff800000.ethernet: TX Checksum insertion
supported
[    1.263976] socfpga-dwmac ff800000.ethernet: Enhanced/Alternate
descriptors
[    1.270923] socfpga-dwmac ff800000.ethernet: Enabled extended descriptors
[    1.277698] socfpga-dwmac ff800000.ethernet: Ring mode enabled
[    1.283520] socfpga-dwmac ff800000.ethernet: Enable RX Mitigation via
HW Watchdog Timer
[    1.291514] socfpga-dwmac ff800000.ethernet: device MAC address
f6:7b:ae:83:e3:6f
[    1.299404] libphy: stmmac: probed
[    1.304506] VFIO - User Level meta-driver version: 0.3
[    1.310679] dwc2 ffb00000.usb: supply vusb_d not found, using dummy
regulator
[    1.317858] dwc2 ffb00000.usb: supply vusb_a not found, using dummy
regulator
[    1.325209] dwc2 ffb00000.usb: EPs: 16, dedicated fifos, 8064 entries
in SPRAM
[    1.332722] dwc2 ffb00000.usb: DWC OTG Controller
[    1.337445] dwc2 ffb00000.usb: new USB bus registered, assigned bus
number 1
[    1.344503] dwc2 ffb00000.usb: irq 26, io mem 0xffb00000
[    1.350353] hub 1-0:1.0: USB hub found
[    1.354133] hub 1-0:1.0: 1 port detected
[    1.359164] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.365686] ehci-pci: EHCI PCI platform driver
[    1.370173] ehci-platform: EHCI generic platform driver
[    1.375501] ehci-orion: EHCI orion driver
[    1.379582] ehci-exynos: EHCI Exynos driver
[    1.383828] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.390005] ohci-pci: OHCI PCI platform driver
[    1.394475] ohci-platform: OHCI generic platform driver
[    1.399772] ohci-exynos: OHCI Exynos driver
[    1.404336] usbcore: registered new interface driver usb-storage
[    1.412340] i2c /dev entries driver
[    1.420237] sdhci: Secure Digital Host Controller Interface driver
[    1.426425] sdhci: Copyright(c) Pierre Ossman
[    1.431089] Synopsys Designware Multimedia Card Interface Driver
[    1.437308] dw_mmc ff808000.dwmmc0: IDMAC supports 32-bit address mode.
[    1.443930] dw_mmc ff808000.dwmmc0: Using internal DMA controller.
[    1.450107] dw_mmc ff808000.dwmmc0: Version ID is 280a
[    1.455282] dw_mmc ff808000.dwmmc0: DW MMC controller at irq 11,32
bit host data width,1024 deep fifo
[    1.464588] mmc_host mmc0: card is polling.
[    1.481378] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req
400000Hz, actual 396825HZ div = 63)
[    1.504141] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.511144] ledtrig-cpu: registered to indicate activity on CPUs
[    1.518376] usbcore: registered new interface driver usbhid
[    1.523989] usbhid: USB HID core driver
[    1.531595] NET: Registered protocol family 17
[    1.536209] 9pnet: Installing 9P2000 support
[    1.540529] Key type dns_resolver registered
[    1.545180] registered taskstats version 1
[    1.549284] Loading compiled-in X.509 certificates
[    1.555146] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req
50000000Hz, actual 50000000HZ div = 0)
[    1.556216] dma-pl330 ffda0000.pdma: Loaded driver for PL330 DMAC-341330
[    1.564912] mmc0: new high speed SDHC card at address 0007
[    1.571553] dma-pl330 ffda0000.pdma:         DBUFF-512x8bytes
Num_Chans-8 Num_Peri-32 Num_Events-8
[    1.586054] mmcblk0: mmc0:0007 SD4GB 3.71 GiB
[    1.592655]  mmcblk0: p1 p2
[    1.634399] socfpga-dwmac ff800000.ethernet eth0: PHY [stmmac-0:04]
driver [Micrel KSZ9031 Gigabit PHY] (irq=POLL)
[    1.656718] socfpga-dwmac ff800000.ethernet eth0: No Safety Features
support found
[    1.664286] socfpga-dwmac ff800000.ethernet eth0: IEEE 1588-2008
Advanced Timestamp supported
[    1.672926] socfpga-dwmac ff800000.ethernet eth0: registered PTP clock
[    1.679452] socfpga-dwmac ff800000.ethernet eth0: configuring for
phy/rgmii link mode
[    1.886407] usb 1-1: new high-speed USB device number 2 using dwc2
[    2.101354] usb-storage 1-1:1.0: USB Mass Storage device detected
[    2.107705] scsi host0: usb-storage 1-1:1.0
[    3.138934] scsi 0:0:0:0: Direct-Access
 0.00 PQ: 0 ANSI: 2
[    3.147481] sd 0:0:0:0: [sda] 15773696 512-byte logical blocks: (8.08
GB/7.52 GiB)
[    3.155175] sd 0:0:0:0: [sda] Write Protect is off
[    3.160113] sd 0:0:0:0: [sda] Asking for cache data failed
[    3.165596] sd 0:0:0:0: [sda] Assuming drive cache: write through
[    3.173760]  sda: sda1
[    3.185550] sd 0:0:0:0: [sda] Attached SCSI removable disk
[    3.747979] socfpga-dwmac ff800000.ethernet eth0: Link is Up -
100Mbps/Full - flow control rx/tx
[    3.774401] Sending DHCP requests .., OK


Dinh

On 10/29/20 11:42 PM, Vignesh Raghavendra wrote:
> Hi,
> 
> On 10/30/20 1:17 AM, Dinh Nguyen wrote:
>> Hi,
>>
>> With commit "a314f6367787ee mtd: spi-nor: Convert cadence-quadspi to use
>> spi-mem framework", I can no longer access the QSPI device under
>> /dev/mtd<n> on the Intel Stratix10 and Agilex platforms and is breaking
>> a few tests we have in-house.
>>
>> Can someone point me to how to access the QSPI device using the spi-mem
>> framework?
>>
> 
> There is should be no visible change to userspace. /dev/mtdX devices
> should still get created based on cmdline or ofpart.
> 
> Could you elaborate what fails? Is the flash detected and /dev/mtdX
> devices created? Is the issue with read or write or erase?
> 
> Also what is the kernel version and .config being used? Full bootlog +
> testcase that fails would be helpful.
> 
> Regards
> Vignesh
> 

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [RFC] Accessing QSPI device under mtd
  2020-10-30 19:23   ` Dinh Nguyen
@ 2020-10-31  5:24     ` Vignesh Raghavendra
  2020-11-02  3:03       ` Dinh Nguyen
  0 siblings, 1 reply; 7+ messages in thread
From: Vignesh Raghavendra @ 2020-10-31  5:24 UTC (permalink / raw)
  To: Dinh Nguyen, linux-spi
  Cc: Ramuthevar, Vadivel MuruganX, Tudor.Ambarus, Mark Brown,
	Richard Gong



On 10/31/20 12:53 AM, Dinh Nguyen wrote:
> Hi Vignesh,
> 
> I'm using the standard arm64 defconfig. Attached are 2 bootlogs, v5.8
> and v5.9. On the v5.8, I can see the QSPI devices under /dev/mtdX, and
> has this in the bootlog:
> 
> [    1.073562] cadence-qspi ff8d2000.spi: mt25qu02g (262144 Kbytes)
> [    1.079865] 2 fixed-partitions partitions found on MTD device
> ff8d2000.spi.0
> [    1.086917] Creating 2 MTD partitions on "ff8d2000.spi.0":
> [    1.092401] 0x000000000000-0x000003fe0000 : "Boot and fpga data"
> [    1.103073] 0x000003fe0000-0x000010000000 : "Root Filesystem - JFFS2"
> 
> In v5.9, I don't see the above output in the bootlog, and there are no
> /dev/mtdX. I did a bisect and it resulted in commit "a314f6367787ee mtd:
> spi-nor: Convert cadence-quadspi to use spi-mem framework". If I revert
> this patch, then QSPI device is under /dev/mtdX.
> 
> There were no changes in the Stratix10 DTS files between v5.8 and v5.9
> that should have any affect on QSPI.
> 

I think I found the problem. Looking at
arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts:

	&qspi {
        	...
	        flash@0 {
        	        compatible = "n25q00a";
			...
		};
	};

Flash node is using non standard compatible "n25q00a". Per
Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt, SPI NOR flash
node must include "jedec,spi-nor" as compatible.

Old driver under drivers/mtd/spi-nor/ worked because, it directly called
spi_nor_scan() w/o looking at compatible string.

Could you try adding "jedec,spi-nor" to flash node's compatible list and
see if everything works?


[...]

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [RFC] Accessing QSPI device under mtd
  2020-10-31  5:24     ` Vignesh Raghavendra
@ 2020-11-02  3:03       ` Dinh Nguyen
  2020-11-03  7:00         ` Vignesh Raghavendra
  0 siblings, 1 reply; 7+ messages in thread
From: Dinh Nguyen @ 2020-11-02  3:03 UTC (permalink / raw)
  To: Vignesh Raghavendra, linux-spi
  Cc: Ramuthevar, Vadivel MuruganX, Tudor.Ambarus, Mark Brown,
	Richard Gong



On 10/31/20 12:24 AM, Vignesh Raghavendra wrote:
> 
> 
> On 10/31/20 12:53 AM, Dinh Nguyen wrote:
>> Hi Vignesh,
>>
>> I'm using the standard arm64 defconfig. Attached are 2 bootlogs, v5.8
>> and v5.9. On the v5.8, I can see the QSPI devices under /dev/mtdX, and
>> has this in the bootlog:
>>
>> [    1.073562] cadence-qspi ff8d2000.spi: mt25qu02g (262144 Kbytes)
>> [    1.079865] 2 fixed-partitions partitions found on MTD device
>> ff8d2000.spi.0
>> [    1.086917] Creating 2 MTD partitions on "ff8d2000.spi.0":
>> [    1.092401] 0x000000000000-0x000003fe0000 : "Boot and fpga data"
>> [    1.103073] 0x000003fe0000-0x000010000000 : "Root Filesystem - JFFS2"
>>
>> In v5.9, I don't see the above output in the bootlog, and there are no
>> /dev/mtdX. I did a bisect and it resulted in commit "a314f6367787ee mtd:
>> spi-nor: Convert cadence-quadspi to use spi-mem framework". If I revert
>> this patch, then QSPI device is under /dev/mtdX.
>>
>> There were no changes in the Stratix10 DTS files between v5.8 and v5.9
>> that should have any affect on QSPI.
>>
> 
> I think I found the problem. Looking at
> arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts:
> 
> 	&qspi {
>         	...
> 	        flash@0 {
>         	        compatible = "n25q00a";
> 			...
> 		};
> 	};
> 
> Flash node is using non standard compatible "n25q00a". Per
> Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt, SPI NOR flash
> node must include "jedec,spi-nor" as compatible.
> 
> Old driver under drivers/mtd/spi-nor/ worked because, it directly called
> spi_nor_scan() w/o looking at compatible string.
> 
> Could you try adding "jedec,spi-nor" to flash node's compatible list and
> see if everything works?
> 
> 

Yes, that fixed it! I have a question though, if I also change it to
"jedec,spi-nor" on the v5.8 kernel, prior to the spi-mem commit, I get
this error:

[    1.075268] cadence-qspi ff8d2000.spi: unrecognized JEDEC id bytes:
d0 5d 91 08 22 00
[    1.083091] cadence-qspi ff8d2000.spi: Cadence QSPI NOR probe failed -2
[    1.089761] cadence-qspi: probe of ff8d2000.spi failed with error -2

Do you know why that is?

Thanks,
Dinh

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [RFC] Accessing QSPI device under mtd
  2020-11-02  3:03       ` Dinh Nguyen
@ 2020-11-03  7:00         ` Vignesh Raghavendra
  2020-11-03 14:01           ` Dinh Nguyen
  0 siblings, 1 reply; 7+ messages in thread
From: Vignesh Raghavendra @ 2020-11-03  7:00 UTC (permalink / raw)
  To: Dinh Nguyen, linux-spi
  Cc: Ramuthevar, Vadivel MuruganX, Tudor.Ambarus, Mark Brown,
	Richard Gong



On 11/2/20 8:33 AM, Dinh Nguyen wrote:
> 
> 
> On 10/31/20 12:24 AM, Vignesh Raghavendra wrote:
>>
>>
>> On 10/31/20 12:53 AM, Dinh Nguyen wrote:
>>> Hi Vignesh,
>>>
>>> I'm using the standard arm64 defconfig. Attached are 2 bootlogs, v5.8
>>> and v5.9. On the v5.8, I can see the QSPI devices under /dev/mtdX, and
>>> has this in the bootlog:
>>>
>>> [    1.073562] cadence-qspi ff8d2000.spi: mt25qu02g (262144 Kbytes)
>>> [    1.079865] 2 fixed-partitions partitions found on MTD device
>>> ff8d2000.spi.0
>>> [    1.086917] Creating 2 MTD partitions on "ff8d2000.spi.0":
>>> [    1.092401] 0x000000000000-0x000003fe0000 : "Boot and fpga data"
>>> [    1.103073] 0x000003fe0000-0x000010000000 : "Root Filesystem - JFFS2"
>>>
>>> In v5.9, I don't see the above output in the bootlog, and there are no
>>> /dev/mtdX. I did a bisect and it resulted in commit "a314f6367787ee mtd:
>>> spi-nor: Convert cadence-quadspi to use spi-mem framework". If I revert
>>> this patch, then QSPI device is under /dev/mtdX.
>>>
>>> There were no changes in the Stratix10 DTS files between v5.8 and v5.9
>>> that should have any affect on QSPI.
>>>
>>
>> I think I found the problem. Looking at
>> arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts:
>>
>> 	&qspi {
>>         	...
>> 	        flash@0 {
>>         	        compatible = "n25q00a";
>> 			...
>> 		};
>> 	};
>>
>> Flash node is using non standard compatible "n25q00a". Per
>> Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt, SPI NOR flash
>> node must include "jedec,spi-nor" as compatible.
>>
>> Old driver under drivers/mtd/spi-nor/ worked because, it directly called
>> spi_nor_scan() w/o looking at compatible string.
>>
>> Could you try adding "jedec,spi-nor" to flash node's compatible list and
>> see if everything works?
>>
>>
> 
> Yes, that fixed it! I have a question though, if I also change it to
> "jedec,spi-nor" on the v5.8 kernel, prior to the spi-mem commit, I get
> this error:
> 
> [    1.075268] cadence-qspi ff8d2000.spi: unrecognized JEDEC id bytes:
> d0 5d 91 08 22 00
> [    1.083091] cadence-qspi ff8d2000.spi: Cadence QSPI NOR probe failed -2
> [    1.089761] cadence-qspi: probe of ff8d2000.spi failed with error -2
> 
> Do you know why that is?
> 

Hmm, that should not happen.. Flash nodes "compatible" line as no effect
with old driver (even deleting it won't matter). Is this change on top
of plain v5.8 or do you have some other changes to spi-nor or controller
driver?

Only way to debug would be to see difference in controller register
configuration with and without "jedec,spi-nor"



^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [RFC] Accessing QSPI device under mtd
  2020-11-03  7:00         ` Vignesh Raghavendra
@ 2020-11-03 14:01           ` Dinh Nguyen
  0 siblings, 0 replies; 7+ messages in thread
From: Dinh Nguyen @ 2020-11-03 14:01 UTC (permalink / raw)
  To: Vignesh Raghavendra, linux-spi
  Cc: Ramuthevar, Vadivel MuruganX, Tudor.Ambarus, Mark Brown,
	Richard Gong



On 11/3/20 1:00 AM, Vignesh Raghavendra wrote:
> 
> 
> On 11/2/20 8:33 AM, Dinh Nguyen wrote:
>>
>>
>> On 10/31/20 12:24 AM, Vignesh Raghavendra wrote:
>>>
>>>
>>> On 10/31/20 12:53 AM, Dinh Nguyen wrote:
>>>> Hi Vignesh,
>>>>
>>>> I'm using the standard arm64 defconfig. Attached are 2 bootlogs, v5.8
>>>> and v5.9. On the v5.8, I can see the QSPI devices under /dev/mtdX, and
>>>> has this in the bootlog:
>>>>
>>>> [    1.073562] cadence-qspi ff8d2000.spi: mt25qu02g (262144 Kbytes)
>>>> [    1.079865] 2 fixed-partitions partitions found on MTD device
>>>> ff8d2000.spi.0
>>>> [    1.086917] Creating 2 MTD partitions on "ff8d2000.spi.0":
>>>> [    1.092401] 0x000000000000-0x000003fe0000 : "Boot and fpga data"
>>>> [    1.103073] 0x000003fe0000-0x000010000000 : "Root Filesystem - JFFS2"
>>>>
>>>> In v5.9, I don't see the above output in the bootlog, and there are no
>>>> /dev/mtdX. I did a bisect and it resulted in commit "a314f6367787ee mtd:
>>>> spi-nor: Convert cadence-quadspi to use spi-mem framework". If I revert
>>>> this patch, then QSPI device is under /dev/mtdX.
>>>>
>>>> There were no changes in the Stratix10 DTS files between v5.8 and v5.9
>>>> that should have any affect on QSPI.
>>>>
>>>
>>> I think I found the problem. Looking at
>>> arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts:
>>>
>>> 	&qspi {
>>>         	...
>>> 	        flash@0 {
>>>         	        compatible = "n25q00a";
>>> 			...
>>> 		};
>>> 	};
>>>
>>> Flash node is using non standard compatible "n25q00a". Per
>>> Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt, SPI NOR flash
>>> node must include "jedec,spi-nor" as compatible.
>>>
>>> Old driver under drivers/mtd/spi-nor/ worked because, it directly called
>>> spi_nor_scan() w/o looking at compatible string.
>>>
>>> Could you try adding "jedec,spi-nor" to flash node's compatible list and
>>> see if everything works?
>>>
>>>
>>
>> Yes, that fixed it! I have a question though, if I also change it to
>> "jedec,spi-nor" on the v5.8 kernel, prior to the spi-mem commit, I get
>> this error:
>>
>> [    1.075268] cadence-qspi ff8d2000.spi: unrecognized JEDEC id bytes:
>> d0 5d 91 08 22 00
>> [    1.083091] cadence-qspi ff8d2000.spi: Cadence QSPI NOR probe failed -2
>> [    1.089761] cadence-qspi: probe of ff8d2000.spi failed with error -2
>>
>> Do you know why that is?
>>
> 
> Hmm, that should not happen.. Flash nodes "compatible" line as no effect
> with old driver (even deleting it won't matter). Is this change on top
> of plain v5.8 or do you have some other changes to spi-nor or controller
> driver?

Just a plain v5.8.

> 
> Only way to debug would be to see difference in controller register
> configuration with and without "jedec,spi-nor"
> 

It works if I have both "micron,n25q00a", "jedec,spi-nor";

Dinh

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2020-11-03 14:01 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-10-29 19:47 [RFC] Accessing QSPI device under mtd Dinh Nguyen
2020-10-30  4:42 ` Vignesh Raghavendra
2020-10-30 19:23   ` Dinh Nguyen
2020-10-31  5:24     ` Vignesh Raghavendra
2020-11-02  3:03       ` Dinh Nguyen
2020-11-03  7:00         ` Vignesh Raghavendra
2020-11-03 14:01           ` Dinh Nguyen

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