AM5728: Kernel error with WL1835MOD

Sung-IL

Part Number: AM5728
Other Parts Discussed in Thread: WL1835MOD, WL1271, WL1835,

Dear Champs,

My customer faced kernel error when they connected WL1835MOD on their custom board, and they connected WL1835MOD using jumper wire as below.

By referring WL18xx Module Hardware Integration Guide (Rev. B), they connected GPIO and SDIO lines as below.

They connected 10K pull-up resisters to MMC4_CMD, MMC4_DAT0~3 except MMC4_CLK.

And they did not connect BT related pins as they will not use BT.

The kernel dmesg is as below and there were errors occurred in the sdio communication.

[ 8.490254] ------------[ cut here ]------------

[ 8.494919] WARNING: CPU: 0 PID: 23 at drivers/net/wireless/ti/wlcore/sdio.c:159 wl12xx_sdio_raw_write+0x130/0x184 [wlcore_sdio]

[ 8.506545] Modules linked in: cdc_acm wl18xx wlcore mac80211 xhci_plat_hcd xhci_hcd sha256_generic sha256_arm usbcore cfg80211 dwc3 udc_core usb_common pru_rproc omap_aes_driver omap_sham omap_wdt phy_omap_usb2 wlcore_sdio dwc3_omap omap_des extcon_palmas des_generic crypto_engine omap_crypto rtc_ds1307 omap_remoteproc virtio_rpmsg_bus remoteproc

[ 8.537509] CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 4.19.94-svn1178 #902

[ 8.544672] Hardware name: Generic DRA74X (Flattened Device Tree)

[ 8.550796] Workqueue: events request_firmware_work_func

[ 8.556127] Backtrace:

[ 8.558586] [<c020ca24>] (dump_backtrace) from [<c020cd5c>] (show_stack+0x18/0x1c)

[ 8.566187] r7:bf07ab28 r6:60010113 r5:00000000 r4:c104eb9c

[ 8.571870] [<c020cd44>] (show_stack) from [<c0987be4>] (dump_stack+0x9c/0xb0)

[ 8.579125] [<c0987b48>] (dump_stack) from [<c022e100>] (__warn+0xdc/0xf8)

[ 8.586026] r7:bf07ab28 r6:00000009 r5:00000000 r4:00000000

[ 8.591708] [<c022e024>] (__warn) from [<c022e164>] (warn_slowpath_null+0x48/0x50)

[ 8.599308] r9:dac9f810 r8:00000004 r7:da9b6a00 r6:bf079604 r5:0000009f r4:bf07ab28

[ 8.607086] [<c022e11c>] (warn_slowpath_null) from [<bf079604>] (wl12xx_sdio_raw_write+0x130/0x184 [wlcore_sdio])

[ 8.617389] r6:0001ffd4 r5:c1004c48 r4:db61b600

[ 8.622059] [<bf0794d4>] (wl12xx_sdio_raw_write [wlcore_sdio]) from [<bf33dcbc>] (wlcore_set_partition+0x278/0x4c4 [wlcore])

[ 8.633322] r10:00000000 r9:da94e440 r8:bf354d40 r7:dac9f800 r6:bf0794d4 r5:dc86cd60

[ 8.641180] r4:bf37808c

[ 8.643773] [<bf33da44>] (wlcore_set_partition [wlcore]) from [<bf333168>] (wl12xx_set_power_on+0x74/0x14c [wlcore])

[ 8.654338] r6:00000000 r5:00000000 r4:dc86cd60

[ 8.659020] [<bf3330f4>] (wl12xx_set_power_on [wlcore]) from [<bf338100>] (wlcore_nvs_cb+0x11c/0xa68 [wlcore])

[ 8.669059] r5:bf354000 r4:dc86cd60

[ 8.672674] [<bf337fe4>] (wlcore_nvs_cb [wlcore]) from [<c0693d88>] (request_firmware_work_func+0x58/0x94)

[ 8.682366] r10:00000000 r9:da9b6a84 r8:00000000 r7:dbd8ef00 r6:dbd8bc80 r5:c1004c48

[ 8.690224] r4:da9b6a80

[ 8.692769] [<c0693d30>] (request_firmware_work_func) from [<c02464d0>] (process_one_work+0x1f4/0x404)

[ 8.702112] r5:dc9cd480 r4:da9b6a80

[ 8.705702] [<c02462dc>] (process_one_work) from [<c02472a4>] (worker_thread+0x58/0x568)

[ 8.713825] r10:dbd8bc80 r9:c1003d00 r8:dbd8bc98 r7:00000008 r6:dbd8bc80 r5:dc9cd494

[ 8.721683] r4:dc9cd480

[ 8.724227] [<c024724c>] (worker_thread) from [<c024c7b4>] (kthread+0x160/0x168)

[ 8.731653] r10:dc8a9e74 r9:c024724c r8:dc9cd480 r7:dca10000 r6:00000000 r5:dc9d7880

[ 8.739512] r4:dc9e0080

[ 8.742055] [<c024c654>] (kthread) from [<c02010d8>] (ret_from_fork+0x14/0x3c)

[ 8.749304] Exception stack(0xdca11fb0 to 0xdca11ff8)

[ 8.754374] 1fa0: 00000000 00000000 00000000 00000000

[ 8.762583] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

[ 8.770792] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000

[ 8.777431] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c024c654

[ 8.785289] r4:dc9d7880

[ 8.787862] ---[ end trace 05006c488094f3fc ]---

[ 8.792521] wl1271_sdio mmc1:0001:2: sdio write failed (-84)

[ 8.798209] [sdio.c: 162:wl12xx_sdio_raw_write] <======

[ 8.803474] [sdio.c: 225:wl12xx_sdio_set_power] enable(0)

[ 8.808896] [sdio.c: 208:wl12xx_sdio_power_off]

[ 8.815268] [sdio.c: 214:wl12xx_sdio_power_off]

[ 9.359234] rtc-ds1307 2-006f: read: c2 08 01 3b 26 10 21

full log is as below.

Fullscreen 7652.log.txt Download

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.94-svn1178 (root@ubuntu20) (gcc version 8.3.0 (GNU Toolchain for the A-profile Architecture 8.3-2019.03 (arm-rel-8.36))) #902 SMP PREEMPT Wed Nov 17 11:48:15 KST 2021
[    0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=30c5387d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] OF: fdt: Machine model: TI AM5728 BeagleBoard-X15
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] efi: Getting EFI parameters from FDT:
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created CMA memory pool at 0x0000000095800000, size 32 MiB
[    0.000000] OF: reserved mem: initialized node ipu2-memory@95800000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created DMA memory pool at 0x000000009d000000, size 32 MiB
[    0.000000] OF: reserved mem: initialized node ipu1-memory@9d000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created CMA memory pool at 0x00000000f7000000, size 56 MiB
[    0.000000] OF: reserved mem: initialized node dsp1-memory@f7000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created CMA memory pool at 0x00000000fa800000, size 56 MiB
[    0.000000] OF: reserved mem: initialized node dsp2-memory@fa800000, compatible id shared-dma-pool
[    0.000000] cma: Reserved 24 MiB at 0x00000000fe400000
[    0.000000] OMAP4: Map 0x00000000ffd00000 to (ptrval) for dram barrier
[    0.000000] On node 0 totalpages: 154624
[    0.000000]   DMA zone: 1044 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 118528 pages, LIFO batch:31
[    0.000000]   HighMem zone: 36096 pages, LIFO batch:7
[    0.000000] DRA752 ES2.0
[    0.000000] random: get_random_bytes called from start_kernel+0xb4/0x470 with crng_init=0
[    0.000000] percpu: Embedded 15 pages/cpu s32140 r8192 d21108 u61440
[    0.000000] pcpu-alloc: s32140 r8192 d21108 u61440 alloc=15*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 153580
[    0.000000] Kernel command line: console=ttyS2,115200n8 consoleblank=0 loglevel=8 root=/dev/mmcblk0p2 ro rootfstype=squashfs rootwait
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 425068K/618496K available (8192K kernel code, 328K rwdata, 2464K rodata, 2048K init, 273K bss, 21396K reserved, 172032K cma-reserved, 5120K highmem)
[    0.000000] Virtual kernel memory layout:
                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
                   vmalloc : 0xdd800000 - 0xff800000   ( 544 MB)
                   lowmem  : 0xc0000000 - 0xdd000000   ( 464 MB)
                   pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
                   modules : 0xbf000000 - 0xbfe00000   (  14 MB)
                     .text : 0x(ptrval) - 0x(ptrval)   (10208 kB)
                     .init : 0x(ptrval) - 0x(ptrval)   (2048 kB)
                     .data : 0x(ptrval) - 0x(ptrval)   ( 329 kB)
                      .bss : 0x(ptrval) - 0x(ptrval)   ( 274 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000]  Tasks RCU enabled.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] OMAP clockevent source: timer1 at 32786 Hz
[    0.000000] arch_timer: cp15 timer(s) running at 6.14MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x16af5adb9, max_idle_ns: 440795202250 ns
[    0.000005] sched_clock: 56 bits at 6MHz, resolution 162ns, wraps every 4398046511023ns
[    0.000019] Switching to timer-based delay loop, resolution 162ns
[    0.000299] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[    0.000310] OMAP clocksource: 32k_counter at 32768 Hz
[    0.000745] Console: colour dummy device 80x30
[    0.000788] Calibrating delay loop (skipped), value calculated using timer frequency.. 12.29 BogoMIPS (lpj=61475)
[    0.000805] pid_max: default: 32768 minimum: 301
[    0.000931] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000945] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001494] CPU: Testing write buffer coherency: ok
[    0.001530] CPU0: Spectre v2: using ICIALLU workaround
[    0.001741] /cpus/cpu@0 missing clock-frequency property
[    0.001762] /cpus/cpu@1 missing clock-frequency property
[    0.001775] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.059923] Setting up static identity map for 0x80200000 - 0x80200060
[    0.079929] rcu: Hierarchical SRCU implementation.
[    0.100124] EFI services will not be available.
[    0.119988] smp: Bringing up secondary CPUs ...
[    0.200337] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.200343] CPU1: Spectre v2: using ICIALLU workaround
[    0.200465] smp: Brought up 1 node, 2 CPUs
[    0.200478] SMP: Total of 2 processors activated (24.59 BogoMIPS).
[    0.200487] CPU: All CPU(s) started in HYP mode.
[    0.200495] CPU: Virtualization extensions available.
[    0.200932] devtmpfs: initialized
[    0.217321] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
[    0.217573] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.217592] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.220468] pinctrl core: initialized pinctrl subsystem
[    0.220983] DMI not present or invalid.
[    0.221254] NET: Registered protocol family 16
[    0.222212] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.223140] omap_hwmod: l3_main_2 using broken dt data from ocp
[    0.415939] cpuidle: using governor ladder
[    0.415976] cpuidle: using governor menu
[    0.425906] gpio gpiochip0: (gpio-0-31): added GPIO chardev (254:0)
[    0.425984] gpiochip_setup_dev: registered GPIOs 0 to 31 on device: gpiochip0 (gpio-0-31)
[    0.426031] OMAP GPIO hardware version 0.1
[    0.426649] gpio gpiochip1: (gpio-32-63): added GPIO chardev (254:1)
[    0.426722] gpiochip_setup_dev: registered GPIOs 32 to 63 on device: gpiochip1 (gpio-32-63)
[    0.427357] gpio gpiochip2: (gpio-64-95): added GPIO chardev (254:2)
[    0.427431] gpiochip_setup_dev: registered GPIOs 64 to 95 on device: gpiochip2 (gpio-64-95)
[    0.428064] gpio gpiochip3: (gpio-96-127): added GPIO chardev (254:3)
[    0.428132] gpiochip_setup_dev: registered GPIOs 96 to 127 on device: gpiochip3 (gpio-96-127)
[    0.428767] gpio gpiochip4: (gpio-128-159): added GPIO chardev (254:4)
[    0.428837] gpiochip_setup_dev: registered GPIOs 128 to 159 on device: gpiochip4 (gpio-128-159)
[    0.429469] gpio gpiochip5: (gpio-160-191): added GPIO chardev (254:5)
[    0.429541] gpiochip_setup_dev: registered GPIOs 160 to 191 on device: gpiochip5 (gpio-160-191)
[    0.430180] gpio gpiochip6: (gpio-192-223): added GPIO chardev (254:6)
[    0.430254] gpiochip_setup_dev: registered GPIOs 192 to 223 on device: gpiochip6 (gpio-192-223)
[    0.430910] gpio gpiochip7: (gpio-224-255): added GPIO chardev (254:7)
[    0.430983] gpiochip_setup_dev: registered GPIOs 224 to 255 on device: gpiochip7 (gpio-224-255)
[    0.453000] No ATAGs?
[    0.453069] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.453085] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.453941] OMAP DMA hardware revision 0.0
[    0.465944] edma 43300000.edma: memcpy is disabled
[    0.469322] edma 43300000.edma: TI EDMA DMA engine driver
[    0.476497] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver (LinkedList1/2/3 supported)
[    0.477080] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator-main_12v0[0]'
[    0.477325] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator-evm_5v0[0]'
[    0.477355] evm_5v0: supplied by main_12v0
[    0.477619] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator-vdd_3v3[0]'
[    0.477868] of_get_named_gpiod_flags: parsed 'gpio' property of node '/fixedregulator-vtt[0]' - status (0)
[    0.478169] of_get_named_gpiod_flags: parsed 'gpio' property of node '/fixedregulator-mmcwl[0]' - status (0)
[    0.480830] omap-iommu 40d01000.mmu: 40d01000.mmu registered
[    0.481005] omap-iommu 40d02000.mmu: 40d02000.mmu registered
[    0.481247] omap-iommu 58882000.mmu: 58882000.mmu registered
[    0.481494] omap-iommu 55082000.mmu: 55082000.mmu registered
[    0.481876] omap-iommu 41501000.mmu: 41501000.mmu registered
[    0.482056] omap-iommu 41502000.mmu: 41502000.mmu registered
[    0.482350] iommu: Adding device 58820000.ipu to group 1
[    0.482432] iommu: Adding device 55020000.ipu to group 2
[    0.482566] iommu: Adding device 40800000.dsp to group 0
[    0.482807] iommu: Adding device 41000000.dsp to group 3
[    0.483369] SCSI subsystem initialized
[    0.484397] palmas 0-0058: Irq flag is 0x00000008
[    0.513416] palmas 0-0058: Muxing GPIO 2b, PWM 0, LED 0
[    0.514973] SMPS12: supplied by regulator-dummy
[    0.516540] SMPS3: supplied by regulator-dummy
[    0.516879] smps3: Bringing 1500000uV into 1350000-1350000uV
[    0.518764] SMPS45: supplied by regulator-dummy
[    0.520460] SMPS6: supplied by regulator-dummy
[    0.521791] SMPS7: supplied by regulator-dummy
[    0.523093] SMPS8: supplied by regulator-dummy
[    0.524261] SMPS9: supplied by regulator-dummy
[    0.524579] random: fast init done
[    0.524903] LDO1: supplied by regulator-dummy
[    0.541257] LDO2: supplied by regulator-dummy
[    0.561123] LDO3: supplied by regulator-dummy
[    0.581142] LDO4: supplied by regulator-dummy
[    0.601165] LDO5: supplied by regulator-dummy
[    0.601807] LDO6: supplied by regulator-dummy
[    0.602441] LDO7: supplied by regulator-dummy
[    0.603073] LDO8: supplied by regulator-dummy
[    0.603716] LDO9: supplied by regulator-dummy
[    0.621216] LDOLN: supplied by regulator-dummy
[    0.631229] LDOUSB: supplied by regulator-dummy
[    0.642326] omap_i2c 48070000.i2c: bus 0 rev0.12 at 400 kHz
[    0.642927] omap_i2c 48072000.i2c: bus 1 rev0.12 at 1 kHz
[    0.643418] omap_i2c 48060000.i2c: bus 2 rev0.12 at 400 kHz
[    0.643636] pps_core: LinuxPPS API ver. 1 registered
[    0.643646] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti giometti@linux.it
[    0.643668] PTP clock support registered
[    0.643702] EDAC MC: Ver: 3.0.0
[    0.644496] omap-mailbox 48840000.mailbox: omap mailbox rev 0x400
[    0.644741] omap-mailbox 48842000.mailbox: omap mailbox rev 0x400
[    0.651580] clocksource: Switched to clocksource arch_sys_counter
[    0.659725] NET: Registered protocol family 2
[    0.660297] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[    0.660327] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.660366] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.660435] TCP: Hash tables configured (established 4096 bind 4096)
[    0.660505] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.660529] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.660646] NET: Registered protocol family 1
[    0.681228] RPC: Registered named UNIX socket transport module.
[    0.681239] RPC: Registered udp transport module.
[    0.681248] RPC: Registered tcp transport module.
[    0.681257] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.681268] PCI: CLS 0 bytes, default 64
[    0.682354] hw perfevents: no interrupt-affinity property for /pmu, guessing.
[    0.682544] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
[    0.685198] Initialise system trusted keyrings
[    0.685344] workingset: timestamp_bits=14 max_order=18 bucket_order=4
[    0.690291] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.700779] NFS: Registering the id_resolver key type
[    0.700804] Key type id_resolver registered
[    0.700813] Key type id_legacy registered
[    0.700855] ntfs: driver 2.1.32 [Flags: R/W].
[    0.702502] Key type asymmetric registered
[    0.702514] Asymmetric key parser 'x509' registered
[    0.702563] bounce: pool size: 64 pages
[    0.702596] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[    0.702608] io scheduler noop registered
[    0.702618] io scheduler deadline registered
[    0.702717] io scheduler cfq registered (default)
[    0.702728] io scheduler mq-deadline registered
[    0.702738] io scheduler kyber registered
[    0.708972] pinctrl-single 4a003400.pinmux: 282 pins, size 1128
[    0.716260] omapdss_dss 58000000.dss: Linked as a consumer to regulator.22
[    0.716387] OMAP DSS rev 6.1
[    0.716573] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[    0.717028] panel-dpi display: GPIO lookup for consumer enable
[    0.717039] panel-dpi display: using device tree for GPIO lookup
[    0.717072] of_get_named_gpiod_flags: parsed 'enable-gpios' property of node '/display[0]' - status (0)
[    0.717092] gpio gpiochip0: Persistence not supported for GPIO 29
[    0.744100] Console: switching to colour frame buffer device 60x34
[    0.774774] omapfb omapfb: using display 'lcd' mode 480x272
[    0.784552] vdd_3v3: supplied by regen1
[    0.784783] vtt_fixed: supplied by smps3
[    0.829866] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[    0.833508] 4806a000.serial: ttyS0 at MMIO 0x4806a000 (irq = 43, base_baud = 3000000) is a 8250
[    0.834412] 4806c000.serial: ttyS1 at MMIO 0x4806c000 (irq = 44, base_baud = 3000000) is a 8250
[    0.835311] 48020000.serial: ttyS2 at MMIO 0x48020000 (irq = 45, base_baud = 3000000) is a 8250
[    2.101043] console [ttyS2] enabled
[    2.105448] 48420000.serial: ttyS6 at MMIO 0x48420000 (irq = 46, base_baud = 3000000) is a 8250
[    2.115101] 48422000.serial: ttyS7 at MMIO 0x48422000 (irq = 47, base_baud = 3000000) is a 8250
[    2.124718] 48424000.serial: ttyS8 at MMIO 0x48424000 (irq = 48, base_baud = 3000000) is a 8250
[    2.134371] 4ae2b000.serial: ttyS9 at MMIO 0x4ae2b000 (irq = 49, base_baud = 3000000) is a 8250
[    2.145428] omap_rng 48090000.rng: Random Number Generator ver. 20
[    2.145962] random: crng init done
[    2.462515] brd: module loaded
[    2.471857] loop: module loaded
[    2.513607] mdio_bus fixed-0: GPIO lookup for consumer reset
[    2.519294] mdio_bus fixed-0: using lookup tables for GPIO lookup
[    2.525464] mdio_bus fixed-0: No GPIO consumer reset found
[    2.530993] libphy: Fixed MDIO Bus: probed
[    2.538890] mdio_bus 48485000.mdio: GPIO lookup for consumer reset
[    2.545151] mdio_bus 48485000.mdio: using device tree for GPIO lookup
[    2.551653] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/ethernet@48484000/mdio@48485000[0]'
[    2.562769] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp/ethernet@48484000/mdio@48485000[0]'
[    2.573791] mdio_bus 48485000.mdio: using lookup tables for GPIO lookup
[    2.580437] mdio_bus 48485000.mdio: No GPIO consumer reset found
[    2.671604] davinci_mdio 48485000.mdio: davinci mdio revision 1.6, bus freq 20000
[    2.679124] libphy: 48485000.mdio: probed
[    2.770559] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/ethernet@48484000/mdio@48485000/ethernet-phy@0[0]'
[    2.874547] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/ethernet@48484000/mdio@48485000/ethernet-phy@1[0]'
[    2.887118] davinci_mdio 48485000.mdio: phy[1]: device 48485000.mdio:01, driver SMSC LAN8710/LAN8720
[    2.896313] davinci_mdio 48485000.mdio: phy[2]: device 48485000.mdio:02, driver SMSC LAN8710/LAN8720
[    2.906011] cpsw 48484000.ethernet: Detected MACID = e4:15:f6:94:c8:70
[    2.912639] cpsw 48484000.ethernet: initialized cpsw ale version 1.4
[    2.919024] cpsw 48484000.ethernet: ALE Table size 1024
[    2.924337] cpsw 48484000.ethernet: cpts: overflow check period 500 (jiffies)
[    2.932348] cpsw 48484000.ethernet: cpsw: Detected MACID = e4:15:f6:94:c8:71
[    2.941079] input: ar1021 I2C Touchscreen as /devices/platform/44000000.ocp/48072000.i2c/i2c-1/1-004d/input/input0
[    2.951854] i2c /dev entries driver
[    2.960948] cpu cpu0: Linked as a consumer to regulator.6
[    2.966475] cpu cpu0: Linked as a consumer to regulator.29
[    2.972704] cpufreq: cpufreq_online: CPU0: Running at unlisted freq: 1000000 KHz
[    2.980234] cpufreq: cpufreq_online: CPU0: Unlisted initial frequency changed to: 1176000 KHz
[    2.993588] sdhci: Secure Digital Host Controller Interface driver
[    2.999793] sdhci: Copyright(c) Pierre Ossman
[    3.005011] sdhci-pltfm: SDHCI platform and OF driver helper
[    3.011329] sdhci-omap 4809c000.mmc: GPIO lookup for consumer wp
[    3.017373] sdhci-omap 4809c000.mmc: using device tree for GPIO lookup
[    3.023943] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp/mmc@4809c000[0]'
[    3.033127] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp/mmc@4809c000[0]'
[    3.042221] sdhci-omap 4809c000.mmc: using lookup tables for GPIO lookup
[    3.048948] sdhci-omap 4809c000.mmc: No GPIO consumer wp found
[    3.054938] sdhci-omap 4809c000.mmc: Linked as a consumer to regulator.28
[    3.061808] sdhci-omap 4809c000.mmc: 4809c000.mmc supply vqmmc not found, using dummy regulator
[    3.070576] sdhci-omap 4809c000.mmc: Linked as a consumer to regulator.0
[    3.077358] sdhci-omap 4809c000.mmc: Dropping the link to regulator.0
[    3.084040] sdhci-omap 4809c000.mmc: Linked as a consumer to regulator.13
[    3.090987] sdhci-omap 4809c000.mmc: no pinctrl state for ddr_3_3v mode
[    3.124179] mmc0: SDHCI controller on 4809c000.mmc [4809c000.mmc] using ADMA
[    3.131419] sdhci-omap 480d1000.mmc: GPIO lookup for consumer cd
[    3.137482] sdhci-omap 480d1000.mmc: using device tree for GPIO lookup
[    3.144068] of_get_named_gpiod_flags: can't parse 'cd-gpios' property of node '/ocp/mmc@480d1000[0]'
[    3.153271] of_get_named_gpiod_flags: can't parse 'cd-gpio' property of node '/ocp/mmc@480d1000[0]'
[    3.162376] sdhci-omap 480d1000.mmc: using lookup tables for GPIO lookup
[    3.169120] sdhci-omap 480d1000.mmc: No GPIO consumer cd found
[    3.175000] sdhci-omap 480d1000.mmc: GPIO lookup for consumer wp
[    3.181044] sdhci-omap 480d1000.mmc: using device tree for GPIO lookup
[    3.187632] of_get_named_gpiod_flags: can't parse 'wp-gpios' property of node '/ocp/mmc@480d1000[0]'
[    3.196841] of_get_named_gpiod_flags: can't parse 'wp-gpio' property of node '/ocp/mmc@480d1000[0]'
[    3.205943] sdhci-omap 480d1000.mmc: using lookup tables for GPIO lookup
[    3.212696] sdhci-omap 480d1000.mmc: No GPIO consumer wp found
[    3.218717] sdhci-omap 480d1000.mmc: 480d1000.mmc supply vqmmc not found, using dummy regulator
[    3.227820] sdhci-omap 480d1000.mmc: Linked as a consumer to regulator.0
[    3.234607] sdhci-omap 480d1000.mmc: Dropping the link to regulator.0
[    3.241190] sdhci-omap 480d1000.mmc: Linked as a consumer to regulator.5
[    3.248049] sdhci-omap 480d1000.mmc: no pinctrl state for sdr104 mode
[    3.254625] sdhci-omap 480d1000.mmc: no pinctrl state for ddr50 mode
[    3.261074] sdhci-omap 480d1000.mmc: no pinctrl state for sdr50 mode
[    3.267505] sdhci-omap 480d1000.mmc: no pinctrl state for sdr25 mode
[    3.273923] sdhci-omap 480d1000.mmc: no pinctrl state for sdr12 mode
[    3.280319] sdhci-omap 480d1000.mmc: no pinctrl state for hs200_1_8v mode
[    3.343805] mmc0: host does not support reading read-only switch, assuming write-enable
[    3.359877] mmc0: new high speed SDHC card at address aaaa
[    3.365885] mmcblk0: mmc0:aaaa SS08G 7.40 GiB
[    3.375938]  mmcblk0: p1 p2 p3 p4
[    3.396854] mmc1: SDHCI controller on 480d1000.mmc [480d1000.mmc] using PIO
[    3.407589] NET: Registered protocol family 10
[    3.412797] sdhci-omap 480d1000.mmc: card claims to support voltages below defined range
[    3.420986] Segment Routing with IPv6
[    3.424764] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[    3.431077] NET: Registered protocol family 17
[    3.435729] Key type dns_resolver registered
[    3.440160] Registering SWP/SWPB emulation handler
[    3.445027] omap_voltage_late_init: Voltage driver support not added
[    3.451422] Power Management for TI OMAP4+ devices.
[    3.456926] Loading compiled-in X.509 certificates
[    3.484612] hctosys: unable to open rtc device (rtc0)
[    3.495269] l4per_cm:clk:0110:0: failed to disable
[    3.505151] l4per_cm:clk:0118:0: failed to disable
[    3.511623] mmc1: new high speed SDIO card at address 0001
[    3.519403] VFS: Mounted root (squashfs filesystem) readonly on device 179:2.
[    3.532376] devtmpfs: mounted
[    3.536238] Freeing unused kernel memory: 2048K
[    3.540874] Run /sbin/init as init process
[    3.901022] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[    3.987386] EXT4-fs (mmcblk0p4): recovery complete
[    3.993032] EXT4-fs (mmcblk0p4): mounted filesystem with ordered data mode. Opts: (null)
[    4.801289] omap-rproc 58820000.ipu: ignoring dependency for device, assuming no driver
[    4.845217] omap-rproc 58820000.ipu: ignoring dependency for device, assuming no driver
[    4.853790] omap-rproc 58820000.ipu: assigned reserved memory node ipu1-memory@9d000000
[    4.923683] remoteproc remoteproc0: 58820000.ipu is available
[    4.956270] remoteproc remoteproc0: Direct firmware load for dra7-ipu1-fw.xem4 failed with error -2
[    4.969879] omap-rproc 55020000.ipu: ignoring dependency for device, assuming no driver
[    4.985287] remoteproc remoteproc0: powering up 58820000.ipu
[    5.012603] omap-rproc 55020000.ipu: ignoring dependency for device, assuming no driver
[    5.021985] remoteproc remoteproc0: Direct firmware load for dra7-ipu1-fw.xem4 failed with error -2
[    5.054525] omap-rproc 55020000.ipu: assigned reserved memory node ipu2-memory@95800000
[    5.073671] remoteproc remoteproc0: request_firmware failed: -2
[    5.098503] remoteproc remoteproc1: 55020000.ipu is available
[    5.111484] remoteproc remoteproc1: Direct firmware load for dra7-ipu2-fw.xem4 failed with error -2
[    5.132684] omap-rproc 40800000.dsp: ignoring dependency for device, assuming no driver
[    5.154617] remoteproc remoteproc1: powering up 55020000.ipu
[    5.162463] omap-rproc 40800000.dsp: ignoring dependency for device, assuming no driver
[    5.182565] remoteproc remoteproc1: Direct firmware load for dra7-ipu2-fw.xem4 failed with error -2
[    5.210156] omap-rproc 40800000.dsp: assigned reserved memory node dsp1-memory@f7000000
[    5.233500] palmas-usb 48070000.i2c:tps659038@58:tps659038_usb: GPIO lookup for consumer id
[    5.243786] remoteproc remoteproc1: request_firmware failed: -2
[    5.250335] rtc-ds1307 2-006f: got IRQ 210
[    5.254683] palmas-usb 48070000.i2c:tps659038@58:tps659038_usb: using device tree for GPIO lookup
[    5.265602] rtc-ds1307 2-006f: read: b8 08 01 3b 26 10 21
[    5.279992] rtc-ds1307 2-006f: read secs=38, mins=8, hours=1, mday=26, mon=9, year=121, wday=2
[    5.294916] omap-des 480a5000.des: OMAP DES hw accel rev: 2.2
[    5.295031] remoteproc remoteproc2: 40800000.dsp is available
[    5.311742] omap-des 480a5000.des: will run requests pump with realtime priority
[    5.319720] of_get_named_gpiod_flags: can't parse 'id-gpios' property of node '/ocp/i2c@48070000/tps659038@58/tps659038_usb[0]'
[    5.335851] remoteproc remoteproc2: Direct firmware load for dra7-dsp1-fw.xe66 failed with error -2
[    5.351724] rtc-ds1307 2-006f: mcp794xx_read_alarm, sec=0 min=0 hour=0 wday=0 mday=0 mon=-1 enabled=0 polarity=0 irq=0 match=0
[    5.365856] omap-rproc 41000000.dsp: ignoring dependency for device, assuming no driver
[    5.375669] remoteproc remoteproc2: powering up 40800000.dsp
[    5.382837] of_get_named_gpiod_flags: can't parse 'id-gpio' property of node '/ocp/i2c@48070000/tps659038@58/tps659038_usb[0]'
[    5.396785] omap-rproc 41000000.dsp: ignoring dependency for device, assuming no driver
[    5.406779] rtc-ds1307 2-006f: read: b8 08 01 3b 26 10 21
[    5.412815] remoteproc remoteproc2: Direct firmware load for dra7-dsp1-fw.xe66 failed with error -2
[    5.424708] rtc-ds1307 2-006f: read secs=38, mins=8, hours=1, mday=26, mon=9, year=121, wday=2
[    5.436834] omap-rproc 41000000.dsp: assigned reserved memory node dsp2-memory@fa800000
[    5.446166] remoteproc remoteproc2: request_firmware failed: -2
[    5.452844] palmas-usb 48070000.i2c:tps659038@58:tps659038_usb: using lookup tables for GPIO lookup
[    5.465071] rtc rtc0: alarm rollover: day
[    5.469365] remoteproc remoteproc3: 41000000.dsp is available
[    5.477308] palmas-usb 48070000.i2c:tps659038@58:tps659038_usb: No GPIO consumer id found
[    5.486577] remoteproc remoteproc3: Direct firmware load for dra7-dsp2-fw.xe66 failed with error -2
[    5.496803] rtc-ds1307 2-006f: read: b8 08 01 3b 26 10 21
[    5.503204] rtc-ds1307 2-006f: read secs=38, mins=8, hours=1, mday=26, mon=9, year=121, wday=2
[    5.513839] remoteproc remoteproc3: powering up 41000000.dsp
[    5.521305] palmas-usb 48070000.i2c:tps659038@58:tps659038_usb: GPIO lookup for consumer vbus
[    5.530974] remoteproc remoteproc3: Direct firmware load for dra7-dsp2-fw.xe66 failed with error -2
[    5.541116] palmas-usb 48070000.i2c:tps659038@58:tps659038_usb: using device tree for GPIO lookup
[    5.551096] rtc-ds1307 2-006f: char device (253:0)
[    5.556134] rtc-ds1307 2-006f: registered as rtc0
[    5.560954] remoteproc remoteproc3: request_firmware failed: -2
[    5.568803] of_get_named_gpiod_flags: can't parse 'vbus-gpios' property of node '/ocp/i2c@48070000/tps659038@58/tps659038_usb[0]'
[    5.586205] of_get_named_gpiod_flags: parsed 'vbus-gpio' property of node '/ocp/i2c@48070000/tps659038@58/tps659038_usb[0]' - status (0)
[    5.603636] gpio gpiochip0: Persistence not supported for GPIO 27
[    5.644983] [sdio.c: 525:wl1271_init]
[    5.780748] [sdio.c: 326:wl1271_probe]
[    5.924819] [sdio.c: 326:wl1271_probe]
[    5.928600] [sdio.c: 332:wl1271_probe]
[    5.939818] [sdio.c: 338:wl1271_probe]
[    5.948521] [sdio.c: 346:wl1271_probe]
[    5.965476] [sdio.c: 279:wlcore_probe_of]
[    5.972856] phy phy-4a084000.phy.3: Linked as a consumer to regulator.23
[    5.985088] phy phy-4a085000.phy.4: Linked as a consumer to regulator.23
[    6.007075] [sdio.c: 285:wlcore_probe_of]
[    6.028678] [sdio.c: 295:wlcore_probe_of]
[    6.051170] [sdio.c: 303:wlcore_probe_of]
[    6.075890] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    6.082998] [sdio.c: 360:wl1271_probe]
[    6.086767] [sdio.c: 369:wl1271_probe]
[    6.099377] [sdio.c: 387:wl1271_probe] wl18xx
[    6.111150] omap-sham 4b101000.sham: hw accel on OMAP rev 4.3
[    6.115020] [sdio.c: 396:wl1271_probe]
[    6.144491] [sdio.c: 413:wl1271_probe]
[    6.144986] omap-aes 4b500000.aes: OMAP AES hw accel rev: 3.3
[    6.148263] [sdio.c: 422:wl1271_probe]
[    6.161990] [sdio.c: 430:wl1271_probe]
[    6.189680] omap-aes 4b500000.aes: will run requests pump with realtime priority
[    6.224349] remoteproc remoteproc4: 4b234000.pru is available
[    6.230188] pru-rproc 4b234000.pru: PRU rproc node pru@4b234000 probed successfully
[    6.236373] omap-aes 4b700000.aes: OMAP AES hw accel rev: 3.3
[    6.254046] omap-aes 4b700000.aes: will run requests pump with realtime priority
[    6.268166] remoteproc remoteproc5: 4b238000.pru is available
[    6.285319] pru-rproc 4b238000.pru: PRU rproc node pru@4b238000 probed successfully
[    6.327119] remoteproc remoteproc6: 4b2b4000.pru is available
[    6.350473] pru-rproc 4b2b4000.pru: PRU rproc node pru@4b2b4000 probed successfully
[    6.368271] remoteproc remoteproc7: 4b2b8000.pru is available
[    6.379146] pru-rproc 4b2b8000.pru: PRU rproc node pru@4b2b8000 probed successfully
[    7.376084] dwc3 48890000.usb: Failed to get clk 'ref': -2
[    7.383061] dwc3 488d0000.usb: Failed to get clk 'ref': -2
[    7.411332] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    7.428049] usbcore: registered new interface driver usbfs
[    7.435028] usbcore: registered new interface driver hub
[    7.441028] usbcore: registered new device driver usb
[    7.455332] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    7.469651] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    7.475333] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
[    7.483592] xhci-hcd xhci-hcd.1.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x0000000002010010
[    7.493089] xhci-hcd xhci-hcd.1.auto: irq 214, io mem 0x48890000
[    7.499396] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    7.507873] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    7.515183] usb usb1: Product: xHCI Host Controller
[    7.520081] usb usb1: Manufacturer: Linux 4.19.94-svn1178 xhci-hcd
[    7.526304] usb usb1: SerialNumber: xhci-hcd.1.auto
[    7.531645] hub 1-0:1.0: USB hub found
[    7.535439] hub 1-0:1.0: 1 port detected
[    7.540297] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
[    7.545843] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
[    7.553555] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed
[    7.560163] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    7.568424] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
[    7.576741] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    7.584012] usb usb2: Product: xHCI Host Controller
[    7.588908] usb usb2: Manufacturer: Linux 4.19.94-svn1178 xhci-hcd
[    7.595345] usb usb2: SerialNumber: xhci-hcd.1.auto
[    7.600588] hub 2-0:1.0: USB hub found
[    7.604393] hub 2-0:1.0: 1 port detected
[    7.608787] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller
[    7.614327] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 3
[    7.622542] xhci-hcd xhci-hcd.2.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x0000000002010010
[    7.632039] xhci-hcd xhci-hcd.2.auto: irq 215, io mem 0x488d0000
[    7.638314] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    7.646703] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    7.653968] usb usb3: Product: xHCI Host Controller
[    7.658865] usb usb3: Manufacturer: Linux 4.19.94-svn1178 xhci-hcd
[    7.665080] usb usb3: SerialNumber: xhci-hcd.2.auto
[    7.670314] hub 3-0:1.0: USB hub found
[    7.674125] hub 3-0:1.0: 1 port detected
[    7.678327] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller
[    7.683858] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 4
[    7.691550] xhci-hcd xhci-hcd.2.auto: Host supports USB 3.0 SuperSpeed
[    7.698170] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
[    7.706392] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.19
[    7.706589] [main.c:2060:wl18xx_probe]
[    7.714807] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    7.725737] usb usb4: Product: xHCI Host Controller
[    7.728604] [main.c:2066:wl18xx_probe]
[    7.730643] usb usb4: Manufacturer: Linux 4.19.94-svn1178 xhci-hcd
[    7.734431] [main.c:2074:wl18xx_probe]
[    7.740602] usb usb4: SerialNumber: xhci-hcd.2.auto
[    7.744675] [main.c:2084:wl18xx_probe]
[    7.749631] hub 4-0:1.0: USB hub found
[    7.756832] hub 4-0:1.0: 1 port detected
[    7.756858] wl18xx_driver wl18xx.0.auto: Direct firmware load for ti-connectivity/wl1271-nvs.bin failed with error -2
[    7.821644] [sdio.c: 225:wl12xx_sdio_set_power] enable(1)
[    7.828569] [sdio.c: 173:wl12xx_sdio_power_on]
[    7.970923] [sdio.c: 184:wl12xx_sdio_power_on]
[    8.041656] usb 3-1: new full-speed USB device number 2 using xhci-hcd
[    8.106762] [sdio.c: 193:wl12xx_sdio_power_on]
[    8.113073] [sdio.c: 198:wl12xx_sdio_power_on]
[    8.222445] usb 3-1: New USB device found, idVendor=04e2, idProduct=1414, bcdDevice= 0.03
[    8.230662] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    8.279409] cdc_acm 3-1:1.0: ttyACM0: USB ACM device
[    8.301110] cdc_acm 3-1:1.2: ttyACM1: USB ACM device
[    8.315824] cdc_acm 3-1:1.4: ttyACM2: USB ACM device
[    8.323123] alloc_contig_range: [fe4ed, fe4ee) PFNs busy
[    8.329510] cdc_acm 3-1:1.6: ttyACM3: USB ACM device
[    8.336669] usbcore: registered new interface driver cdc_acm
[    8.341630] [sdio.c: 132:wl12xx_sdio_raw_write] ======>
[    8.345855] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    8.347907] wlcore_sdio: WRITE to 0x1ffc4
[    8.401791] wlcore_sdio: WRITE 00000000: 00 00 70 00
[    8.410539] [sdio.c: 162:wl12xx_sdio_raw_write] <======
[    8.416597] [sdio.c: 132:wl12xx_sdio_raw_write] ======>
[    8.421861] wlcore_sdio: WRITE to 0x1ffc0
[    8.425891] wlcore_sdio: WRITE 00000000: 0c 03 00 00
[    8.431059] [sdio.c: 162:wl12xx_sdio_raw_write] <======
[    8.436384] [sdio.c: 132:wl12xx_sdio_raw_write] ======>
[    8.441647] wlcore_sdio: WRITE to 0x1ffcc
[    8.445674] wlcore_sdio: WRITE 00000000: 00 20 80 00
[    8.450824] [sdio.c: 162:wl12xx_sdio_raw_write] <======
[    8.456106] [sdio.c: 132:wl12xx_sdio_raw_write] ======>
[    8.461358] wlcore_sdio: WRITE to 0x1ffc8
[    8.465397] wlcore_sdio: WRITE 00000000: 78 45 01 00
[    8.470534] [sdio.c: 162:wl12xx_sdio_raw_write] <======
[    8.475828] [sdio.c: 132:wl12xx_sdio_raw_write] ======>
[    8.481077] wlcore_sdio: WRITE to 0x1ffd4
[    8.485120] wlcore_sdio: WRITE 00000000: 04 04 b0 00
[    8.490254] ------------[ cut here ]------------
[    8.494919] WARNING: CPU: 0 PID: 23 at drivers/net/wireless/ti/wlcore/sdio.c:159 wl12xx_sdio_raw_write+0x130/0x184 [wlcore_sdio]
[    8.506545] Modules linked in: cdc_acm wl18xx wlcore mac80211 xhci_plat_hcd xhci_hcd sha256_generic sha256_arm usbcore cfg80211 dwc3 udc_core usb_common pru_rproc omap_aes_driver omap_sham omap_wdt phy_omap_usb2 wlcore_sdio dwc3_omap omap_des extcon_palmas des_generic crypto_engine omap_crypto rtc_ds1307 omap_remoteproc virtio_rpmsg_bus remoteproc
[    8.537509] CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 4.19.94-svn1178 #902
[    8.544672] Hardware name: Generic DRA74X (Flattened Device Tree)
[    8.550796] Workqueue: events request_firmware_work_func
[    8.556127] Backtrace:
[    8.558586] [<c020ca24>] (dump_backtrace) from [<c020cd5c>] (show_stack+0x18/0x1c)
[    8.566187]  r7:bf07ab28 r6:60010113 r5:00000000 r4:c104eb9c
[    8.571870] [<c020cd44>] (show_stack) from [<c0987be4>] (dump_stack+0x9c/0xb0)
[    8.579125] [<c0987b48>] (dump_stack) from [<c022e100>] (__warn+0xdc/0xf8)
[    8.586026]  r7:bf07ab28 r6:00000009 r5:00000000 r4:00000000
[    8.591708] [<c022e024>] (__warn) from [<c022e164>] (warn_slowpath_null+0x48/0x50)
[    8.599308]  r9:dac9f810 r8:00000004 r7:da9b6a00 r6:bf079604 r5:0000009f r4:bf07ab28
[    8.607086] [<c022e11c>] (warn_slowpath_null) from [<bf079604>] (wl12xx_sdio_raw_write+0x130/0x184 [wlcore_sdio])
[    8.617389]  r6:0001ffd4 r5:c1004c48 r4:db61b600
[    8.622059] [<bf0794d4>] (wl12xx_sdio_raw_write [wlcore_sdio]) from [<bf33dcbc>] (wlcore_set_partition+0x278/0x4c4 [wlcore])
[    8.633322]  r10:00000000 r9:da94e440 r8:bf354d40 r7:dac9f800 r6:bf0794d4 r5:dc86cd60
[    8.641180]  r4:bf37808c
[    8.643773] [<bf33da44>] (wlcore_set_partition [wlcore]) from [<bf333168>] (wl12xx_set_power_on+0x74/0x14c [wlcore])
[    8.654338]  r6:00000000 r5:00000000 r4:dc86cd60
[    8.659020] [<bf3330f4>] (wl12xx_set_power_on [wlcore]) from [<bf338100>] (wlcore_nvs_cb+0x11c/0xa68 [wlcore])
[    8.669059]  r5:bf354000 r4:dc86cd60
[    8.672674] [<bf337fe4>] (wlcore_nvs_cb [wlcore]) from [<c0693d88>] (request_firmware_work_func+0x58/0x94)
[    8.682366]  r10:00000000 r9:da9b6a84 r8:00000000 r7:dbd8ef00 r6:dbd8bc80 r5:c1004c48
[    8.690224]  r4:da9b6a80
[    8.692769] [<c0693d30>] (request_firmware_work_func) from [<c02464d0>] (process_one_work+0x1f4/0x404)
[    8.702112]  r5:dc9cd480 r4:da9b6a80
[    8.705702] [<c02462dc>] (process_one_work) from [<c02472a4>] (worker_thread+0x58/0x568)
[    8.713825]  r10:dbd8bc80 r9:c1003d00 r8:dbd8bc98 r7:00000008 r6:dbd8bc80 r5:dc9cd494
[    8.721683]  r4:dc9cd480
[    8.724227] [<c024724c>] (worker_thread) from [<c024c7b4>] (kthread+0x160/0x168)
[    8.731653]  r10:dc8a9e74 r9:c024724c r8:dc9cd480 r7:dca10000 r6:00000000 r5:dc9d7880
[    8.739512]  r4:dc9e0080
[    8.742055] [<c024c654>] (kthread) from [<c02010d8>] (ret_from_fork+0x14/0x3c)
[    8.749304] Exception stack(0xdca11fb0 to 0xdca11ff8)
[    8.754374] 1fa0:                                     00000000 00000000 00000000 00000000
[    8.762583] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    8.770792] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    8.777431]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c024c654
[    8.785289]  r4:dc9d7880
[    8.787862] ---[ end trace 05006c488094f3fc ]---
[    8.792521] wl1271_sdio mmc1:0001:2: sdio write failed (-84)
[    8.798209] [sdio.c: 162:wl12xx_sdio_raw_write] <======
[    8.803474] [sdio.c: 225:wl12xx_sdio_set_power] enable(0)
[    8.808896] [sdio.c: 208:wl12xx_sdio_power_off]
[    8.815268] [sdio.c: 214:wl12xx_sdio_power_off]
[    9.359234] rtc-ds1307 2-006f: read: c2 08 01 3b 26 10 21
[    9.367662] rtc-ds1307 2-006f: read secs=42, mins=8, hours=1, mday=26, mon=9, year=121, wday=2
[    9.471351] cmemk: loading out-of-tree module taints kernel.
[    9.478846] CMEMK module: reference Linux version 4.19.94
[    9.485595] allocated heap buffer 0x40500000 of size 0x100000
[    9.491422] cmemk initialized
[    9.609084] net eth0: initializing cpsw version 1.15 (0)
[   10.100798] SMSC LAN8710/LAN8720 48485000.mdio:01: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=48485000.mdio:01, irq=POLL)
[   10.113533] cpsw-phy-sel 4a002554.cpsw-phy-sel: RMII External clock is not supported
[   10.125841] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   10.144263] net eth1: initializing cpsw version 1.15 (0)
[   10.776879] SMSC LAN8710/LAN8720 48485000.mdio:02: attached PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=48485000.mdio:02, irq=POLL)
[   10.789588] cpsw-phy-sel 4a002554.cpsw-phy-sel: RMII External clock is not supported
[   10.799413] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   10.819178] usbcore: deregistering interface driver cdc_acm
[   10.893295] cdc_xr_usb_serial 3-1:1.0: This device cannot do calls on its own. It is not a modem.
[   10.902287] cdc_xr_usb_serial 3-1:1.0: ttyXR_USB_SERIAL0: USB XR_USB_SERIAL device
[   10.911640] cdc_xr_usb_serial 3-1:1.2: This device cannot do calls on its own. It is not a modem.
[   10.920635] cdc_xr_usb_serial 3-1:1.2: ttyXR_USB_SERIAL1: USB XR_USB_SERIAL device
[   10.930079] cdc_xr_usb_serial 3-1:1.4: This device cannot do calls on its own. It is not a modem.
[   10.939107] cdc_xr_usb_serial 3-1:1.4: ttyXR_USB_SERIAL2: USB XR_USB_SERIAL device
[   10.948458] cdc_xr_usb_serial 3-1:1.6: This device cannot do calls on its own. It is not a modem.
[   10.957469] cdc_xr_usb_serial 3-1:1.6: ttyXR_USB_SERIAL3: USB XR_USB_SERIAL device
[   10.966740] usbcore: registered new interface driver cdc_xr_usb_serial
[   10.975538] xr21v1414: Exar USB UART (serial port) driver
[   11.924702] remoteproc remoteproc0: releasing 58820000.ipu
[   11.935457] remoteproc remoteproc1: releasing 55020000.ipu
[   11.936337] omap-rproc 58820000.ipu: ignoring dependency for device, assuming no driver
[   11.946548] omap-rproc 55020000.ipu: ignoring dependency for device, assuming no driver
[   11.962049] omap-rproc 58820000.ipu: ignoring dependency for device, assuming no driver
[   11.972949] omap-rproc 55020000.ipu: ignoring dependency for device, assuming no driver
[   11.981285] omap-rproc 58820000.ipu: assigned reserved memory node ipu1-memory@9d000000
[   11.994742] omap-rproc 55020000.ipu: assigned reserved memory node ipu2-memory@95800000
[   12.009406] remoteproc remoteproc0: 58820000.ipu is available
[   12.023818] remoteproc remoteproc1: 55020000.ipu is available
[   12.434340] remoteproc remoteproc0: powering up 58820000.ipu
[   12.440035] remoteproc remoteproc0: Booting fw image dra7-ipu1-fw.xem4, size 5049700
[   12.447919] omap-iommu 58882000.mmu: 58882000.mmu: version 2.1
[   12.464554] virtio_rpmsg_bus virtio0: rpmsg host is online
[   12.470395] remoteproc remoteproc0: registered virtio0 (type 7)
[   12.476385] remoteproc remoteproc0: remote processor 58820000.ipu is now up
[   12.492894] remoteproc remoteproc1: powering up 55020000.ipu
[   12.498621] remoteproc remoteproc1: Booting fw image dra7-ipu2-fw.xem4, size 4858196
[   12.506649] omap-iommu 55082000.mmu: 55082000.mmu: version 2.1
[   12.517986] virtio_rpmsg_bus virtio1: rpmsg host is online
[   12.523611] remoteproc remoteproc1: registered virtio1 (type 7)
[   12.529575] remoteproc remoteproc1: remote processor 55020000.ipu is now up
[   13.262830] cpsw 48484000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off
[   13.270733] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   13.742802] cpsw 48484000.ethernet eth1: Link is Up - 100Mbps/Full - flow control off
[   13.750692] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[   33.761610] vdd_3v3: disabling
[   33.764679] vmmcwl_fixed: disabling

lsmod after boot-up. There is no wicore_sdio module registered.

root@am57xx-evm:~# lsmod

Module Size Used by

kisan_usb_notifier 16384 0

xr21v1414 32768 0

cmemk 45056 2

wl18xx 98304 0

wlcore 196608 1 wl18xx

mac80211 442368 2 wl18xx,wlcore

xhci_plat_hcd 16384 0

xhci_hcd 143360 1 xhci_plat_hcd

sha256_generic 20480 0

sha256_arm 24576 0

usbcore 217088 4 kisan_usb_notifier,xhci_plat_hcd,xr21v1414,xhci_hcd

cfg80211 270336 3 wl18xx,wlcore,mac80211

dwc3 73728 0

udc_core 28672 1 dwc3

usb_common 16384 3 udc_core,usbcore,dwc3

pru_rproc 24576 0

omap_aes_driver 24576 0

omap_sham 28672 0

omap_wdt 16384 0

phy_omap_usb2 16384 4

wlcore_sdio 16384 0

dwc3_omap 16384 0

omap_des 20480 0

extcon_palmas 16384 0

des_generic 28672 1 omap_des

crypto_engine 16384 2 omap_des,omap_aes_driver

omap_crypto 16384 2 omap_des,omap_aes_driver

rtc_ds1307 28672 1

omap_remoteproc 20480 0

virtio_rpmsg_bus 20480 0

remoteproc 49152 2 pru_rproc,omap_remoteproc

When they tried to register wicore_sdio manually, they still found same kernel error at SDIO writing.

Fullscreen 5460.log2.txt Download

root@am57xx-evm:~# /usr/sbin/wlconf/configure-device.sh

Please provide the following information.

Are you using a TI module? [y/n] : y
What is the chip flavor? [1801/1805/1807/1831/1835/1837 or 0 for unknown] : 1835
Should certification Class 2 Permissive Change (C2PC) due to higher antenna gain (max 3.2dBm) be applied? [y/n] : n
How many 2.4GHz antennas are fitted? [1/2] : 2
[ 3771.553813] [sdio.c: 532:wl1271_exit]
[ 3771.815569] [sdio.c: 447:wl1271_remove]

The device has been successfully configured.
TI Module: y
Chip Flavor: 1835
Number of 2.4GHz Antennas Fitted: 2
Number of 5G[ 3771.902826] [sdio.c: 525:wl1271_init]
Hz Antennas Fitted: 0
Diversity Support: n
SISO40 Support: y
Japanese Standards Applied: n
Class 2 Permissive Change (C2PC) Applied: n

[ 3772.045962] [sdio.c: 326:wl1271_probe]
[ 3772.175856] [sdio.c: 326:wl1271_probe]
[ 3772.179619] [sdio.c: 332:wl1271_probe]
[ 3772.183398] [sdio.c: 338:wl1271_probe]
[ 3772.187160] [sdio.c: 346:wl1271_probe]
[ 3772.190921] [sdio.c: 279:wlcore_probe_of]
[ 3772.194959] [sdio.c: 285:wlcore_probe_of]
[ 3772.199004] [sdio.c: 295:wlcore_probe_of]
[ 3772.203038] [sdio.c: 303:wlcore_probe_of]
[ 3772.207061] [sdio.c: 360:wl1271_probe]
[ 3772.210821] [sdio.c: 369:wl1271_probe]
[ 3772.214591] [sdio.c: 387:wl1271_probe] wl18xx
[ 3772.218965] [sdio.c: 396:wl1271_probe]
[ 3772.222734] [sdio.c: 413:wl1271_probe]
[ 3772.226495] [sdio.c: 422:wl1271_probe]
[ 3772.231339] [main.c:2060:wl18xx_probe]
[ 3772.236350] [main.c:2066:wl18xx_probe]
[ 3772.240114] [main.c:2074:wl18xx_probe]
[ 3772.243957] wl18xx_driver wl18xx.0.auto: Direct firmware load for ti-connectivity/wl1271-nvs.bin failed with error -2
[ 3772.246272] [main.c:2084:wl18xx_probe]
[ 3772.259177] [sdio.c: 430:wl1271_probe]
root@am57xx-evm:~# [ 3772.291596] [sdio.c: 225:wl12xx_sdio_set_power] enable(1)
[ 3772.297022] [sdio.c: 173:wl12xx_sdio_power_on]
[ 3772.425595] [sdio.c: 184:wl12xx_sdio_power_on]
[ 3772.565535] [sdio.c: 193:wl12xx_sdio_power_on]
[ 3772.570391] [sdio.c: 198:wl12xx_sdio_power_on]
[ 3772.791586] [sdio.c: 132:wl12xx_sdio_raw_write] ======>
[ 3772.796833] wlcore_sdio: WRITE to 0x1ffc4
[ 3772.800858] wlcore_sdio: WRITE 00000000: 00 00 70 00
[ 3772.806000] [sdio.c: 162:wl12xx_sdio_raw_write] <======
[ 3772.811245] [sdio.c: 132:wl12xx_sdio_raw_write] ======>
[ 3772.816502] wlcore_sdio: WRITE to 0x1ffc0
[ 3772.820525] wlcore_sdio: WRITE 00000000: 0c 03 00 00
[ 3772.825659] ------------[ cut here ]------------
[ 3772.830306] WARNING: CPU: 1 PID: 32 at drivers/net/wireless/ti/wlcore/sdio.c:159 wl12xx_sdio_raw_write+0x130/0x184 [wlcore_sdio]
[ 3772.841927] Modules linked in: wlcore_sdio kisan_usb_notifier xr21v1414 cmemk(O) wl18xx wlcore mac80211 xhci_plat_hcd xhci_hcd sha256_generic sha256_arm usbcore cfg80211 dwc3 udc_core usb_common pru_rproc omap_aes_driver omap_sham omap_wdt phy_omap_usb2 dwc3_omap omap_des extcon_palmas des_generic crypto_engine omap_crypto rtc_ds1307 omap_remoteproc virtio_rpmsg_bus remoteproc [last unloaded: wlcore_sdio]
[ 3772.878012] CPU: 1 PID: 32 Comm: kworker/1:1 Tainted: G        W  O      4.19.94-svn1178 #902
[ 3772.886570] Hardware name: Generic DRA74X (Flattened Device Tree)
[ 3772.892696] Workqueue: events request_firmware_work_func
[ 3772.898028] Backtrace:
[ 3772.900489] [<c020ca24>] (dump_backtrace) from [<c020cd5c>] (show_stack+0x18/0x1c)
[ 3772.908090]  r7:bf3e8b28 r6:60000013 r5:00000000 r4:c104eb9c
[ 3772.913776] [<c020cd44>] (show_stack) from [<c0987be4>] (dump_stack+0x9c/0xb0)
[ 3772.921029] [<c0987b48>] (dump_stack) from [<c022e100>] (__warn+0xdc/0xf8)
[ 3772.927930]  r7:bf3e8b28 r6:00000009 r5:00000000 r4:00000000
[ 3772.933612] [<c022e024>] (__warn) from [<c022e164>] (warn_slowpath_null+0x48/0x50)
[ 3772.941213]  r9:daca0c10 r8:00000004 r7:daefb900 r6:bf3e7604 r5:0000009f r4:bf3e8b28
[ 3772.948991] [<c022e11c>] (warn_slowpath_null) from [<bf3e7604>] (wl12xx_sdio_raw_write+0x130/0x184 [wlcore_sdio])
[ 3772.959294]  r6:0001ffc0 r5:c1004c48 r4:db61b600
[ 3772.963967] [<bf3e74d4>] (wl12xx_sdio_raw_write [wlcore_sdio]) from [<bf33db84>] (wlcore_set_partition+0x140/0x4c4 [wlcore])
[ 3772.975230]  r10:00000000 r9:daefbb80 r8:bf354d40 r7:daca0c00 r6:bf3e74d4 r5:dace4d60
[ 3772.983088]  r4:bf37808c
[ 3772.985680] [<bf33da44>] (wlcore_set_partition [wlcore]) from [<bf333168>] (wl12xx_set_power_on+0x74/0x14c [wlcore])
[ 3772.996245]  r6:00000000 r5:00000000 r4:dace4d60
[ 3773.000929] [<bf3330f4>] (wl12xx_set_power_on [wlcore]) from [<bf338100>] (wlcore_nvs_cb+0x11c/0xa68 [wlcore])
[ 3773.010968]  r5:bf354000 r4:dace4d60
[ 3773.014583] [<bf337fe4>] (wlcore_nvs_cb [wlcore]) from [<c0693d88>] (request_firmware_work_func+0x58/0x94)
[ 3773.024276]  r10:00000000 r9:daefb8c4 r8:00000000 r7:dbd9df00 r6:dbd9ac80 r5:c1004c48
[ 3773.032136]  r4:daefb8c0
[ 3773.034681] [<c0693d30>] (request_firmware_work_func) from [<c02464d0>] (process_one_work+0x1f4/0x404)
[ 3773.044023]  r5:dc9ef780 r4:daefb8c0
[ 3773.047612] [<c02462dc>] (process_one_work) from [<c02472a4>] (worker_thread+0x58/0x568)
[ 3773.055736]  r10:dbd9ac80 r9:c1003d00 r8:dbd9ac98 r7:00000008 r6:dbd9ac80 r5:dc9ef794
[ 3773.063595]  r4:dc9ef780
[ 3773.066138] [<c024724c>] (worker_thread) from [<c024c7b4>] (kthread+0x160/0x168)
[ 3773.073564]  r10:dc8cbe74 r9:c024724c r8:dc9ef780 r7:dcba0000 r6:00000000 r5:dc9ecc40
[ 3773.081423]  r4:dcb6cd40
[ 3773.083966] [<c024c654>] (kthread) from [<c02010d8>] (ret_from_fork+0x14/0x3c)
[ 3773.091216] Exception stack(0xdcba1fb0 to 0xdcba1ff8)
[ 3773.096285] 1fa0:                                     00000000 00000000 00000000 00000000
[ 3773.104494] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 3773.112702] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 3773.119343]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c024c654
[ 3773.127202]  r4:dc9ecc40
[ 3773.129765] ---[ end trace 05006c488094f3fd ]---
[ 3773.134418] wl1271_sdio mmc1:0001:2: sdio write failed (-84)
[ 3773.140099] [sdio.c: 162:wl12xx_sdio_raw_write] <======
[ 3773.145360] [sdio.c: 225:wl12xx_sdio_set_power] enable(0)
[ 3773.150780] [sdio.c: 208:wl12xx_sdio_power_off]
[ 3773.155612] [sdio.c: 214:wl12xx_sdio_power_off]

When they checked the status of sdio at mmc1, it looked there were issues in the clock and vdd.

root@am57xx-evm:~# cat /sys/kernel/debug/mmc1/ios

clock: 0 Hz

vdd: 0 (invalid)

bus mode: 2 (push-pull)

chip select: 0 (don't care)

power mode: 0 (off)

bus width: 0 (1 bits)

timing spec: 0 (legacy)

signal voltage: 0 (3.30 V)

driver type: 0 (driver type B)

They modified device tree for mmc4(sdio) as below.

vmmcwl_fixed: fixedregulator-mmcwl {

// reference 1: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm/boot/dts/am57xx-evm-common.dtsi?h=ti-linux-4.4.y

// reference 2: https://e2e.ti.com/support/wireless-connectivity/wi-fi-group/wifi/f/wi-fi-forum/557081/wlan-enable-line-in-device-tree-for-wl18xx-device-tree

// reference 3: https://patches.linaro.org/project/lkml/patch/20180427120905.3665-11-kishon@ti.com/

compatible = "regulator-fixed";

regulator-name = "vmmcwl_fixed";

regulator-min-microvolt = <1800000>;

regulator-max-microvolt = <1800000>;

startup-delay-us = <70000>;

// F4.vin2a_d5.gpio4_6

gpio = <&gpio4 6 GPIO_ACTIVE_HIGH>;

enable-active-high;

};

&mmc4 {

// reference 1: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm/boot/dts/am57xx-evm-common.dtsi?h=ti-linux-4.4.y

// reference 2: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/arch/arm/boot/dts/am335x-boneblack-wireless.dts?h=ti-linux-5.4.y

status = "okay";

vmmc-supply = <&vmmcwl_fixed>;

bus-width = <4>;

cap-power-off-card;

keep-power-in-suspend;

ti,non-removable;

pinctrl-names = "default", "hs";

pinctrl-0 = <&mmc4_pins_default>;

pinctrl-1 = <&mmc4_pins_hs>;

#address-cells = <1>;

#size-cells = <0>;

wlcore: wlcore@2 {

compatible = "ti,wl1835";

reg = <2>;

// D2.vin2a_d4.gpio4_5 (R4379): WL_IRQ

interrupt-parent = <&gpio4>;

interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;

};

Could you please check why this kernel error was occurred?

Thanks and Best Regards,

SI.

over 4 years ago

0 Sung-IL over 4 years ago

TI__Mastermind 31150 points

Dear Champs,

They tested it on AM5728 GP EVM(revision 1.0, earlier than A3a), and they also found issues when they run ifconfig and wpa_supplicant to work WL1835MOD through SDIO as below.

Their SDK version is SDKv6.3.0.

Fullscreen 5226.logs.txt Download

root@am57xx-evm:~# ifconfig wlan0 down
[  226.163598] wlcore: down
root@am57xx-evm:~# ifconfig wlan0 up
[  230.686189] ------------[ cut here ]------------
[  230.690849] WARNING: CPU: 1 PID: 1368 at drivers/net/wireless/ti/wlcore/sdio.c:145 wl12xx_sdio_raw_write+0x118/0x150 [wlcore_sdio]
[  230.703101] Modules linked in: xfrm_user xfrm4_tunnel ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo arc4 wl18xx wlcore mac80211 pru_rproc sha256_generic irq_pruss_intc xhci_plat_hcd xhci_hcd sha256_arm cfg80211 pruss rpmsg_proto dwc3 udc_core rpmsg_rpc ahci_platform libahci_platform snd_soc_simple_card snd_soc_simple_card_utils libahci ti_vpe libata omap_aes_driver pvrsrvkm(O) snd_soc_omap_hdmi pruss_soc_bus ti_sc wlcore_sdio phy_omap_usb2 omap_sham omap_wdt ti_csc ti_vpdma dwc3_omap rtc_omap omap_des snd_soc_tlv320aic3x des_generic at24 pixcir_i2c_ts omap_hdq crypto_engine extcon_palmas wire rtc_palmas rtc_ds1307 omap_crypto omap_remoteproc virtio_rpmsg_bus remoteproc sch_fq_codel uio_module_drv(O) uio ftdi_sio usbserial usbcore usb_common jailhouse(O) gdbserverproxy(O) cryptodev(O) cmemk(O)
[  230.773809] CPU: 1 PID: 1368 Comm: ifconfig Tainted: G           O      4.19.79-g77dfab56c6 #1
[  230.782462] Hardware name: Generic DRA74X (Flattened Device Tree)
[  230.788578] Backtrace:
[  230.791041] [<c020ca34>] (dump_backtrace) from [<c020cd6c>] (show_stack+0x18/0x1c)
[  230.798642]  r7:bf1e6b00 r6:60000013 r5:00000000 r4:c12506dc
[  230.804329] [<c020cd54>] (show_stack) from [<c0a12ee0>] (dump_stack+0x90/0xa4)
[  230.811582] [<c0a12e50>] (dump_stack) from [<c022e098>] (__warn+0xdc/0xf8)
[  230.818483]  r7:bf1e6b00 r6:00000009 r5:00000000 r4:00000000
[  230.824166] [<c022dfbc>] (__warn) from [<c022e0fc>] (warn_slowpath_null+0x48/0x50)
[  230.831767]  r9:00004000 r8:d4294000 r7:ed7c8810 r6:bf1e5340 r5:00000091 r4:bf1e6b00
[  230.839547] [<c022e0b4>] (warn_slowpath_null) from [<bf1e5340>] (wl12xx_sdio_raw_write+0x118/0x150 [wlcore_sdio])
[  230.849849]  r6:00004000 r5:c1204c48 r4:ede4fa00
[  230.854517] [<bf1e5228>] (wl12xx_sdio_raw_write [wlcore_sdio]) from [<bf59094c>] (wlcore_boot_upload_firmware+0x22c/0x488 [wlcore])
[  230.866390]  r10:00014000 r9:bf1e5228 r8:d4294000 r7:bf5a0d40 r6:00000001 r5:80904000
[  230.874250]  r4:ec318e00
[  230.876832] [<bf590720>] (wlcore_boot_upload_firmware [wlcore]) from [<bf5bbf40>] (wl18xx_boot+0x844/0xc88 [wl18xx])
[  230.887398]  r10:00000003 r9:00000014 r8:c0e69a2c r7:bf5a0d40 r6:c1204c48 r5:00000000
[  230.895256]  r4:ec318e00
[  230.897830] [<bf5bb6fc>] (wl18xx_boot [wl18xx]) from [<bf582fe4>] (wl1271_op_add_interface+0x54c/0x940 [wlcore])
[  230.908047]  r9:00000000 r8:ec318e3c r7:bf5a0d40 r6:c1204c48 r5:ec318e00 r4:ec73cb30
[  230.915893] [<bf582a98>] (wl1271_op_add_interface [wlcore]) from [<bf506230>] (drv_add_interface+0x34/0x7c [mac80211])
[  230.926633]  r10:00000000 r9:00000001 r8:ec73c670 r7:ec73c540 r6:ec318480 r5:ec73c000
[  230.934492]  r4:ec73c540
[  230.937115] [<bf5061fc>] (drv_add_interface [mac80211]) from [<bf519590>] (ieee80211_do_open+0x47c/0x91c [mac80211])
[  230.947679]  r5:ec73c000 r4:ec73c548
[  230.951352] [<bf519114>] (ieee80211_do_open [mac80211]) from [<bf519a7c>] (ieee80211_open+0x4c/0x58 [mac80211])
[  230.961480]  r10:00000000 r9:00000000 r8:ec73c02c r7:bf54c674 r6:00000000 r5:c1204c48
[  230.969338]  r4:ec73c540
[  230.971924] [<bf519a30>] (ieee80211_open [mac80211]) from [<c08d91fc>] (__dev_open+0xd4/0x158)
[  230.980568]  r5:c1204c48 r4:ec73c000
[  230.984158] [<c08d9128>] (__dev_open) from [<c08d95f4>] (__dev_change_flags+0x16c/0x1cc)
[  230.992281]  r8:00001002 r7:c1204c48 r6:00001043 r5:00000001 r4:ec73c000
[  230.999009] [<c08d9488>] (__dev_change_flags) from [<c08d9674>] (dev_change_flags+0x20/0x50)
[  231.007480]  r9:00000000 r8:00008914 r7:ec73c140 r6:00000000 r5:00001002 r4:ec73c000
[  231.015258] [<c08d9654>] (dev_change_flags) from [<c0961b9c>] (devinet_ioctl+0x6c8/0x6f8)
[  231.023467]  r9:00000000 r8:00008914 r7:c1204c48 r6:ed70a00c r5:d4167e08 r4:00000000
[  231.031243] [<c09614d4>] (devinet_ioctl) from [<c0963ff0>] (inet_ioctl+0x1f0/0x34c)
[  231.038929]  r10:dfbb2020 r9:d4166000 r8:bed1fa60 r7:c12492c0 r6:00008914 r5:bed1fa60
[  231.046787]  r4:c1204c48
[  231.049332] [<c0963e00>] (inet_ioctl) from [<c08b3a10>] (sock_ioctl+0x1b8/0x42c)
[  231.056756]  r8:bed1fa60 r7:c12492c0 r6:bed1fa60 r5:c1204c48 r4:00008914
[  231.063486] [<c08b3858>] (sock_ioctl) from [<c036afa8>] (do_vfs_ioctl+0xb8/0x7c0)
[  231.070998]  r9:d4166000 r8:bed1fa60 r7:00000003 r6:d47eda80 r5:bed1fa60 r4:c1204c48
[  231.078772] [<c036aef0>] (do_vfs_ioctl) from [<c036b6ec>] (ksys_ioctl+0x3c/0x68)
[  231.086198]  r10:00000036 r9:d4166000 r8:bed1fa60 r7:00008914 r6:00000003 r5:d47eda80
[  231.094056]  r4:d47eda80
[  231.096597] [<c036b6b0>] (ksys_ioctl) from [<c036b728>] (sys_ioctl+0x10/0x14)
[  231.103760]  r9:d4166000 r8:c0201204 r7:00000036 r6:bed1fd62 r5:bed1fd62 r4:0007b558
[  231.111536] [<c036b718>] (sys_ioctl) from [<c0201000>] (ret_fast_syscall+0x0/0x4c)
[  231.119134] Exception stack(0xd4167fa8 to 0xd4167ff0)
[  231.124205] 7fa0:                   0007b558 bed1fd62 00000003 00008914 bed1fa60 0007b558
[  231.132415] 7fc0: 0007b558 bed1fd62 bed1fd62 00000036 bed1fc2c bed1fc2c bed1fa60 00000003
[  231.140625] 7fe0: 0009d1ec bed1f9f4 00032145 b6ef815c
[  231.146740] ---[ end trace ae243cd66a7d2abc ]---
[  231.151380] wl1271_sdio mmc2:0001:2: sdio write failed (-110)
[  233.645442] ------------[ cut here ]------------
[  233.650100] WARNING: CPU: 0 PID: 1368 at drivers/net/wireless/ti/wlcore/sdio.c:145 wl12xx_sdio_raw_write+0x118/0x150 [wlcore_sdio]
[  233.662517] Modules linked in: xfrm_user xfrm4_tunnel ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo arc4 wl18xx wlcore mac80211 pru_rproc sha256_generic irq_pruss_intc xhci_plat_hcd xhci_hcd sha256_arm cfg80211 pruss rpmsg_proto dwc3 udc_core rpmsg_rpc ahci_platform libahci_platform snd_soc_simple_card snd_soc_simple_card_utils libahci ti_vpe libata omap_aes_driver pvrsrvkm(O) snd_soc_omap_hdmi pruss_soc_bus ti_sc wlcore_sdio phy_omap_usb2 omap_sham omap_wdt ti_csc ti_vpdma dwc3_omap rtc_omap omap_des snd_soc_tlv320aic3x des_generic at24 pixcir_i2c_ts omap_hdq crypto_engine extcon_palmas wire rtc_palmas rtc_ds1307 omap_crypto omap_remoteproc virtio_rpmsg_bus remoteproc sch_fq_codel uio_module_drv(O) uio ftdi_sio usbserial usbcore usb_common jailhouse(O) gdbserverproxy(O) cryptodev(O) cmemk(O)
[  233.734266] CPU: 0 PID: 1368 Comm: ifconfig Tainted: G        W  O      4.19.79-g77dfab56c6 #1
[  233.742915] Hardware name: Generic DRA74X (Flattened Device Tree)
[  233.749030] Backtrace:
[  233.751491] [<c020ca34>] (dump_backtrace) from [<c020cd6c>] (show_stack+0x18/0x1c)
[  233.759092]  r7:bf1e6b00 r6:600f0013 r5:00000000 r4:c12506dc
[  233.764777] [<c020cd54>] (show_stack) from [<c0a12ee0>] (dump_stack+0x90/0xa4)
[  233.772029] [<c0a12e50>] (dump_stack) from [<c022e098>] (__warn+0xdc/0xf8)
[  233.778932]  r7:bf1e6b00 r6:00000009 r5:00000000 r4:00000000
[  233.784613] [<c022dfbc>] (__warn) from [<c022e0fc>] (warn_slowpath_null+0x48/0x50)
[  233.792215]  r9:00004000 r8:d4294000 r7:ed7c8810 r6:bf1e5340 r5:00000091 r4:bf1e6b00
[  233.799993] [<c022e0b4>] (warn_slowpath_null) from [<bf1e5340>] (wl12xx_sdio_raw_write+0x118/0x150 [wlcore_sdio])
[  233.810295]  r6:00000000 r5:c1204c48 r4:ede4fa00
[  233.814971] [<bf1e5228>] (wl12xx_sdio_raw_write [wlcore_sdio]) from [<bf59094c>] (wlcore_boot_upload_firmware+0x22c/0x488 [wlcore])
[  233.826845]  r10:00014000 r9:bf1e5228 r8:d4294000 r7:bf5a0d40 r6:00000000 r5:80900000
[  233.834704]  r4:ec318e00
[  233.837286] [<bf590720>] (wlcore_boot_upload_firmware [wlcore]) from [<bf5bbf40>] (wl18xx_boot+0x844/0xc88 [wl18xx])
[  233.847853]  r10:00000002 r9:00000014 r8:c0e69a2c r7:bf5a0d40 r6:c1204c48 r5:00000000
[  233.855712]  r4:ec318e00
[  233.858285] [<bf5bb6fc>] (wl18xx_boot [wl18xx]) from [<bf582fe4>] (wl1271_op_add_interface+0x54c/0x940 [wlcore])
[  233.868501]  r9:00000000 r8:ec318e3c r7:bf5a0d40 r6:c1204c48 r5:ec318e00 r4:ec73cb30
[  233.876359] [<bf582a98>] (wl1271_op_add_interface [wlcore]) from [<bf506230>] (drv_add_interface+0x34/0x7c [mac80211])
[  233.887099]  r10:00000000 r9:00000001 r8:ec73c670 r7:ec73c540 r6:ec318480 r5:ec73c000
[  233.894958]  r4:ec73c540
[  233.897581] [<bf5061fc>] (drv_add_interface [mac80211]) from [<bf519590>] (ieee80211_do_open+0x47c/0x91c [mac80211])
[  233.908144]  r5:ec73c000 r4:ec73c548
[  233.911816] [<bf519114>] (ieee80211_do_open [mac80211]) from [<bf519a7c>] (ieee80211_open+0x4c/0x58 [mac80211])
[  233.921945]  r10:00000000 r9:00000000 r8:ec73c02c r7:bf54c674 r6:00000000 r5:c1204c48
[  233.929804]  r4:ec73c540
[  233.932389] [<bf519a30>] (ieee80211_open [mac80211]) from [<c08d91fc>] (__dev_open+0xd4/0x158)
[  233.941033]  r5:c1204c48 r4:ec73c000
[  233.944622] [<c08d9128>] (__dev_open) from [<c08d95f4>] (__dev_change_flags+0x16c/0x1cc)
[  233.952745]  r8:00001002 r7:c1204c48 r6:00001043 r5:00000001 r4:ec73c000
[  233.959473] [<c08d9488>] (__dev_change_flags) from [<c08d9674>] (dev_change_flags+0x20/0x50)
[  233.967944]  r9:00000000 r8:00008914 r7:ec73c140 r6:00000000 r5:00001002 r4:ec73c000
[  233.975721] [<c08d9654>] (dev_change_flags) from [<c0961b9c>] (devinet_ioctl+0x6c8/0x6f8)
[  233.983931]  r9:00000000 r8:00008914 r7:c1204c48 r6:ed70a00c r5:d4167e08 r4:00000000
[  233.991706] [<c09614d4>] (devinet_ioctl) from [<c0963ff0>] (inet_ioctl+0x1f0/0x34c)
[  233.999393]  r10:dfbb2020 r9:d4166000 r8:bed1fa60 r7:c12492c0 r6:00008914 r5:bed1fa60
[  234.007253]  r4:c1204c48
[  234.009800] [<c0963e00>] (inet_ioctl) from [<c08b3a10>] (sock_ioctl+0x1b8/0x42c)
[  234.017223]  r8:bed1fa60 r7:c12492c0 r6:bed1fa60 r5:c1204c48 r4:00008914
[  234.023954] [<c08b3858>] (sock_ioctl) from [<c036afa8>] (do_vfs_ioctl+0xb8/0x7c0)
[  234.031465]  r9:d4166000 r8:bed1fa60 r7:00000003 r6:d47eda80 r5:bed1fa60 r4:c1204c48
[  234.039239] [<c036aef0>] (do_vfs_ioctl) from [<c036b6ec>] (ksys_ioctl+0x3c/0x68)
[  234.046664]  r10:00000036 r9:d4166000 r8:bed1fa60 r7:00008914 r6:00000003 r5:d47eda80
[  234.054522]  r4:d47eda80
[  234.057063] [<c036b6b0>] (ksys_ioctl) from [<c036b728>] (sys_ioctl+0x10/0x14)
[  234.064226]  r9:d4166000 r8:c0201204 r7:00000036 r6:bed1fd62 r5:bed1fd62 r4:0007b558
[  234.072001] [<c036b718>] (sys_ioctl) from [<c0201000>] (ret_fast_syscall+0x0/0x4c)
[  234.079599] Exception stack(0xd4167fa8 to 0xd4167ff0)
[  234.084669] 7fa0:                   0007b558 bed1fd62 00000003 00008914 bed1fa60 0007b558
[  234.092880] 7fc0: 0007b558 bed1fd62 bed1fd62 00000036 bed1fc2c bed1fc2c bed1fa60 00000003
[  234.101088] 7fe0: 0009d1ec bed1f9f4 00032145 b6ef815c
[  234.106274] ---[ end trace ae243cd66a7d2abd ]---
[  234.110912] wl1271_sdio mmc2:0001:2: sdio write failed (-110)
[  236.605700] ------------[ cut here ]------------
[  236.610354] WARNING: CPU: 0 PID: 1368 at drivers/net/wireless/ti/wlcore/sdio.c:145 wl12xx_sdio_raw_write+0x118/0x150 [wlcore_sdio]
[  236.622240] Modules linked in: xfrm_user xfrm4_tunnel ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo arc4 wl18xx wlcore mac80211 pru_rproc sha256_generic irq_pruss_intc xhci_plat_hcd xhci_hcd sha256_arm cfg80211 pruss rpmsg_proto dwc3 udc_core rpmsg_rpc ahci_platform libahci_platform snd_soc_simple_card snd_soc_simple_card_utils libahci ti_vpe libata omap_aes_driver pvrsrvkm(O) snd_soc_omap_hdmi pruss_soc_bus ti_sc wlcore_sdio phy_omap_usb2 omap_sham omap_wdt ti_csc ti_vpdma dwc3_omap rtc_omap omap_des snd_soc_tlv320aic3x des_generic at24 pixcir_i2c_ts omap_hdq crypto_engine extcon_palmas wire rtc_palmas rtc_ds1307 omap_crypto omap_remoteproc virtio_rpmsg_bus remoteproc sch_fq_codel uio_module_drv(O) uio ftdi_sio usbserial usbcore usb_common jailhouse(O) gdbserverproxy(O) cryptodev(O) cmemk(O)
[  236.693042] CPU: 0 PID: 1368 Comm: ifconfig Tainted: G        W  O      4.19.79-g77dfab56c6 #1
[  236.701693] Hardware name: Generic DRA74X (Flattened Device Tree)
[  236.707811] Backtrace:
[  236.710278] [<c020ca34>] (dump_backtrace) from [<c020cd6c>] (show_stack+0x18/0x1c)
[  236.717884]  r7:bf1e6b00 r6:600d0013 r5:00000000 r4:c12506dc
[  236.723576] [<c020cd54>] (show_stack) from [<c0a12ee0>] (dump_stack+0x90/0xa4)
[  236.730834] [<c0a12e50>] (dump_stack) from [<c022e098>] (__warn+0xdc/0xf8)
[  236.737741]  r7:bf1e6b00 r6:00000009 r5:00000000 r4:00000000
[  236.743428] [<c022dfbc>] (__warn) from [<c022e0fc>] (warn_slowpath_null+0x48/0x50)
[  236.751034]  r9:00004000 r8:d4294000 r7:ed7c8810 r6:bf1e5340 r5:00000091 r4:bf1e6b00
[  236.758819] [<c022e0b4>] (warn_slowpath_null) from [<bf1e5340>] (wl12xx_sdio_raw_write+0x118/0x150 [wlcore_sdio])
[  236.769125]  r6:00000000 r5:c1204c48 r4:ede4fa00
[  236.773827] [<bf1e5228>] (wl12xx_sdio_raw_write [wlcore_sdio]) from [<bf59094c>] (wlcore_boot_upload_firmware+0x22c/0x488 [wlcore])
[  236.785707]  r10:00014000 r9:bf1e5228 r8:d4294000 r7:bf5a0d40 r6:00000000 r5:80900000
[  236.793570]  r4:ec318e00
[  236.796173] [<bf590720>] (wlcore_boot_upload_firmware [wlcore]) from [<bf5bbf40>] (wl18xx_boot+0x844/0xc88 [wl18xx])
[  236.806744]  r10:00000001 r9:00000014 r8:c0e69a2c r7:bf5a0d40 r6:c1204c48 r5:00000000
[  236.814605]  r4:ec318e00
[  236.817199] [<bf5bb6fc>] (wl18xx_boot [wl18xx]) from [<bf582fe4>] (wl1271_op_add_interface+0x54c/0x940 [wlcore])
[  236.827421]  r9:00000000 r8:ec318e3c r7:bf5a0d40 r6:c1204c48 r5:ec318e00 r4:ec73cb30
[  236.835323] [<bf582a98>] (wl1271_op_add_interface [wlcore]) from [<bf506230>] (drv_add_interface+0x34/0x7c [mac80211])
[  236.846067]  r10:00000000 r9:00000001 r8:ec73c670 r7:ec73c540 r6:ec318480 r5:ec73c000
[  236.853928]  r4:ec73c540
[  236.856596] [<bf5061fc>] (drv_add_interface [mac80211]) from [<bf519590>] (ieee80211_do_open+0x47c/0x91c [mac80211])
[  236.867164]  r5:ec73c000 r4:ec73c548
[  236.870881] [<bf519114>] (ieee80211_do_open [mac80211]) from [<bf519a7c>] (ieee80211_open+0x4c/0x58 [mac80211])
[  236.881014]  r10:00000000 r9:00000000 r8:ec73c02c r7:bf54c674 r6:00000000 r5:c1204c48
[  236.888877]  r4:ec73c540
[  236.891486] [<bf519a30>] (ieee80211_open [mac80211]) from [<c08d91fc>] (__dev_open+0xd4/0x158)
[  236.900135]  r5:c1204c48 r4:ec73c000
[  236.903728] [<c08d9128>] (__dev_open) from [<c08d95f4>] (__dev_change_flags+0x16c/0x1cc)
[  236.911856]  r8:00001002 r7:c1204c48 r6:00001043 r5:00000001 r4:ec73c000
[  236.918590] [<c08d9488>] (__dev_change_flags) from [<c08d9674>] (dev_change_flags+0x20/0x50)
[  236.927067]  r9:00000000 r8:00008914 r7:ec73c140 r6:00000000 r5:00001002 r4:ec73c000
[  236.934847] [<c08d9654>] (dev_change_flags) from [<c0961b9c>] (devinet_ioctl+0x6c8/0x6f8)
[  236.943062]  r9:00000000 r8:00008914 r7:c1204c48 r6:ed70a00c r5:d4167e08 r4:00000000
[  236.950843] [<c09614d4>] (devinet_ioctl) from [<c0963ff0>] (inet_ioctl+0x1f0/0x34c)
[  236.958534]  r10:dfbb2020 r9:d4166000 r8:bed1fa60 r7:c12492c0 r6:00008914 r5:bed1fa60
[  236.966396]  r4:c1204c48
[  236.968947] [<c0963e00>] (inet_ioctl) from [<c08b3a10>] (sock_ioctl+0x1b8/0x42c)
[  236.976376]  r8:bed1fa60 r7:c12492c0 r6:bed1fa60 r5:c1204c48 r4:00008914
[  236.983111] [<c08b3858>] (sock_ioctl) from [<c036afa8>] (do_vfs_ioctl+0xb8/0x7c0)
[  236.990628]  r9:d4166000 r8:bed1fa60 r7:00000003 r6:d47eda80 r5:bed1fa60 r4:c1204c48
[  236.998406] [<c036aef0>] (do_vfs_ioctl) from [<c036b6ec>] (ksys_ioctl+0x3c/0x68)
[  237.005835]  r10:00000036 r9:d4166000 r8:bed1fa60 r7:00008914 r6:00000003 r5:d47eda80
[  237.013698]  r4:d47eda80
[  237.016245] [<c036b6b0>] (ksys_ioctl) from [<c036b728>] (sys_ioctl+0x10/0x14)
[  237.023414]  r9:d4166000 r8:c0201204 r7:00000036 r6:bed1fd62 r5:bed1fd62 r4:0007b558
[  237.031196] [<c036b718>] (sys_ioctl) from [<c0201000>] (ret_fast_syscall+0x0/0x4c)
[  237.038797] Exception stack(0xd4167fa8 to 0xd4167ff0)
[  237.043873] 7fa0:                   0007b558 bed1fd62 00000003 00008914 bed1fa60 0007b558
[  237.052088] 7fc0: 0007b558 bed1fd62 bed1fd62 00000036 bed1fc2c bed1fc2c bed1fa60 00000003
[  237.060301] 7fe0: 0009d1ec bed1f9f4 00032145 b6ef815c
[  237.065448] ---[ end trace ae243cd66a7d2abe ]---
[  237.070121] wl1271_sdio mmc2:0001:2: sdio write failed (-110)

[  237.763798] wlcore: ERROR firmware boot failed despite 3 retries
ifconfig: SIOCSIFFLAGS: Connection timed out

They connected WL1835MODCOM8 to AM5728 GP EVM as below.

When they tried to boot using pre-built image of Linux SDK, they confirmed MMC, wlcore_sdio as below.

root@am57xx-evm:~# dmesg | grep mmc2

[ 3.377537] mmc2: SDHCI controller on 480ad000.mmc [480ad000.mmc] using PIO

[ 3.482344] mmc2: new high speed SDIO card at address 0001

~~~~

root@am57xx-evm:~# dmesg | grep wl

[ 0.490144] of_get_named_gpiod_flags: parsed 'gpio' property of node '/fixedregulator-mmcwl[0]' - status (0)

[ 14.569465] wl18xx_driver wl18xx.1.auto: Direct firmware load for ti-connectivity/wl1271-nvs.bin failed with error -2

[ 14.965086] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)

[ 15.050541] wlcore: loaded

[ 15.600205] wlcore: PHY firmware version: Rev 8.2.0.0.240

[ 15.720293] wlcore: firmware booted (Rev 8.9.0.0.76)

~~~~~~~

root@am57xx-evm:~# ifconfig -a

eth0 Link encap:Ethernet HWaddr A0:F6:FD:AA:53:D8

UP BROADCAST MULTICAST MTU:1500 Metric:1

RX packets:0 errors:0 dropped:0 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

Interrupt:90

eth1 Link encap:Ethernet HWaddr A0:F6:FD:AA:53:D9

UP BROADCAST MULTICAST MTU:1500 Metric:1

RX packets:0 errors:0 dropped:0 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

inet6 addr: ::1/128 Scope:Host

UP LOOPBACK RUNNING MTU:65536 Metric:1

RX packets:107 errors:0 dropped:0 overruns:0 frame:0

TX packets:107 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:221047 (215.8 KiB) TX bytes:221047 (215.8 KiB)

sit0 Link encap:IPv6-in-IPv4

NOARP MTU:1480 Metric:1

RX packets:0 errors:0 dropped:0 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 50:65:83:F8:1C:CC

UP BROADCAST MULTICAST MTU:1500 Metric:1

RX packets:0 errors:0 dropped:0 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

~~~~~~~

* MMC2 after boot

root@am57xx-evm:~# cat /sys/kernel/debug/mmc2/ios

clock: 48000000 Hz

vdd: 23 (3.5 ~ 3.6 V)

bus mode: 2 (push-pull)

chip select: 0 (don't care)

power mode: 2 (on)

bus width: 2 (4 bits)

timing spec: 2 (sd high-speed)

signal voltage: 1 (1.80 V)

driver type: 0 (driver type B)

Thanks and Best Regards,

SI.

+1 Sung-IL over 4 years ago in reply to Sung-IL

TI__Mastermind 31150 points

They resolved this issue in their custom board by themselves although there is still an issue in the AM5728 GPEVM.

One of root cause was SDIO signal integrity issue in their custom board.

Thanks and Best Regards,

SI.

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AM5728: Kernel error with WL1835MOD