Kernel output up until the crash:
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 6.4.0-rc6-00242-g1639fae5132b (rogan@vermin) (arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #5 Fri Jun 23 08:35:38 SAST 2023 [ 0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f [ 0.000000] CPU: VIVT data cache, VIVT instruction cache [ 0.000000] OF: fdt: Machine model: Freescale i.MX28 Evaluation Kit [ 0.000000] Memory policy: Data cache writeback [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000040000000-0x0000000043ffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000040000000-0x0000000043ffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x0000000043ffffff] [ 0.000000] Kernel command line: noinitrd console=ttyAMA0,115200 rootfstype=ubifs ubi.mtd=5 root=ubi0:rootfs rw gpmi [ 0.000000] Unknown kernel command line parameters "gpmi", will be passed to user space. [ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear) [ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear) [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 16256 [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] Memory: 45044K/65536K available (8784K kernel code, 1205K rwdata, 2828K rodata, 252K init, 6469K bss, 20492K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] trace event string verifier disabled [ 0.000000] Running RCU self tests [ 0.000000] Running RCU synchronous self tests [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 [ 0.000000] clocksource: mxs_timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns [ 0.000007] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns [ 0.003518] Console: colour dummy device 80x30 [ 0.003899] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.003958] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.004006] ... MAX_LOCK_DEPTH: 48 [ 0.004042] ... MAX_LOCKDEP_KEYS: 8192 [ 0.004075] ... CLASSHASH_SIZE: 4096 [ 0.004109] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.004141] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.004173] ... CHAINHASH_SIZE: 32768 [ 0.004205] memory used by lock dependency info: 4061 kB [ 0.004239] memory used for stack traces: 2112 kB [ 0.004272] per task-struct memory footprint: 1536 bytes [ 0.004575] Calibrating delay loop... 226.09 BogoMIPS (lpj=1130496) [ 0.081603] pid_max: default: 32768 minimum: 301 [ 0.083730] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.083869] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.097343] CPU: Testing write buffer coherency: ok [ 0.111000] Setting up static identity map for 0x40008400 - 0x40008458 [ 0.122358] devtmpfs: initialized [ 0.210895] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.211175] futex hash table entries: 256 (order: 1, 12288 bytes, linear) [ 0.212810] pinctrl core: initialized pinctrl subsystem [ 0.231662] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.245591] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.313115] platform 80018000.pinctrl: Fixed dependency cycle(s) with /apb@80000000/apbh@80000000/pinctrl@80018000/hog@0 [ 0.367352] gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation. [ 0.393672] gpio gpiochip1: Static allocation of GPIO base is deprecated, use dynamic allocation. [ 0.418068] gpio gpiochip2: Static allocation of GPIO base is deprecated, use dynamic allocation. [ 0.442386] gpio gpiochip3: Static allocation of GPIO base is deprecated, use dynamic allocation. [ 0.466456] gpio gpiochip4: Static allocation of GPIO base is deprecated, use dynamic allocation. [ 0.574021] platform panel: Fixed dependency cycle(s) with /apb@80000000 /apbh@80000000/lcdif@80030000/port/endpoint [ 0.586898] Serial: AMBA PL011 UART driver [ 0.593614] 80074000.serial: ttyAMA0 at MMIO 0x80074000 (irq = 182, base_baud = 0) is a PL011 rev2 [ 0.594577] printk: console [ttyAMA0] enabled [ 3.352978] regulator-vddio-sd0 enforce active low on GPIO handle [ 3.362829] regulator-fec-3v3 enforce active low on GPIO handle [ 3.397532] SCSI subsystem initialized [ 3.419552] usbcore: registered new interface driver usbfs [ 3.426400] usbcore: registered new interface driver hub [ 3.432422] usbcore: registered new device driver usb
On Fri, 23 Jun 2023 at 16:25, Rogan Dawes rogan@dawes.za.net wrote:
I understand the importance now. No, I got to the same result with your dts as with the evk one, crash after the usbcore modules were registered, and then binary garbage on the console.
I do understand that you are not familiar with the Wink Hub, and am especially appreciative of the time you are offering.
Is this still relevant to u-boot, or should this conversation move elsewhere, since this is more about the kernel now it seems? Although I guess modern u-boot also cares about device trees?
Regards,
Rogan
On Fri, 23 Jun 2023 at 16:05, Fabio Estevam festevam@gmail.com wrote:
Hi Rogan,
On Fri, Jun 23, 2023 at 10:53 AM Rogan Dawes rogan@dawes.za.net wrote:
Hi Fabio,
Thanks so much for the effort put in. I just wanted to confirm that I
am able to get console output when using the imx28-evk.dts file, although it crashes after a few lines of output. That seems to suggest that the additional pins that you have added in your patch are not necessary, and possibly even incorrect?
It could be that the kernel console log is appearing only because U-Boot did the correct pinmux of the duart pins.
If the arch/arm/mach-mx28/mx28evk_pins.c corresponds to the correct pinmux for the wink hub board, then the duart pins need to be as:
MX28_PAD_I2C0_SCL__DUART_RX MX28_PAD_I2C0_SDA__DUART_TX
like it is done on my patch.
Just so you know, I have no knowledge about the wink hub board.
My comment on the duart pin was merely due to code inspection.
NAND read: device 0 offset 0x2b00000, size 0x600000 6291456 bytes read: OK ## Booting kernel from Legacy Image at 42000000 ... Image Name: Created: 2023-06-23 6:36:22 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 6279441 Bytes = 6 MiB Load Address: 40008000 Entry Point: 40008000 Verifying Checksum ... OK Loading Kernel Image ... OK
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 6.4.0-rc6-00242-g1639fae5132b (rogan@vermin)
(arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #5 Fri Jun 23 08:35:38 SAST 2023
[ 0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ),
cr=0005317f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache [ 0.000000] OF: fdt: Machine model: Freescale i.MX28 Evaluation Kit [ 0.000000] Memory policy: Data cache writeback [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000040000000-0x0000000043ffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges
Here is an updated dts with the GPMI node added.
Hopefully, with this one, the NAND flash device can be detected.
Does this dts boot for you without hanging in the USB part?