‎Elphel's kernel tree

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‎Elphel's kernel tree

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Oleg Dzhimiev committed changes to the Elphel git project :
redundant include

‎- Note 4: PHP causing 'unsupported FP instruction in kernel mode'

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Oleg Dzhimiev committed changes to the Elphel git project :
Looks like resetting EOF was enough

Oleg Dzhimiev committed changes to the Elphel git project :
included camogm.h where USE_POLL will be defined or not

‎- Note 11: test AHCI driver

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Oleg Dzhimiev committed changes to the Elphel git project :
the fix does not work: still Unsupported FP instruction in kernel mode

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Show changes Oleg

Show changes Oleg

Oleg Dzhimiev committed changes to the Elphel git project :
updated lists and added include/linux/kconfig.h as preprocessor macro

Oleg Dzhimiev committed changes to the Elphel git project :
borrowed file from 4.19 (current kernel is 4.14)

‎- Note 4

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Oleg Dzhimiev committed changes to the Elphel git project :
updated driver to current version, added our fall-through

‎Elphel's kernel tree

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Show changes Oleg

Oleg Dzhimiev committed changes to the Elphel git project :
suppressed udev warning about unknown kvm group

‎[SOLVED] Note 6

← Older revision Revision as of 17:56, 30 July 2019 (15 intermediate revisions by the same user not shown)Line 1: Line 1: −==Note 1==+==<font color='green'>'''[SOLVED]'''</font> Note 1==  * /dev/xdevfg got obsolete - there's fpga manager instead which cannot load *.bit (only *.bin or *.bit.bin) * /dev/xdevfg got obsolete - there's fpga manager instead which cannot load *.bit (only *.bin or *.bit.bin)  * '''Solution:''' * '''Solution:''' −  Brought back the old driver (drivers/char/xilinx_devcfg.c)- it works+  Brought back the old driver (drivers/char/xilinx_devcfg.c and edited Kconfig and Makefile)- it works as it used to    −==Note 2==+==<font color='green'>'''[SOLVED]'''</font> Note 2== −* php 5.6.40 - EOL and won't build+* php 5.6.40 - EOL and won't build - mysql supposedly moved header files.  * '''Solution:''' * '''Solution:'''    Disabled mysql extension:   Disabled mysql extension: Line 11: Line 11:       PACKAGECONFIG[mysql] = "--without-mysql --without-mysqli --without-pdo-mysql"      PACKAGECONFIG[mysql] = "--without-mysql --without-mysqli --without-pdo-mysql"       CFLAGS += " -ldl"      CFLAGS += " -ldl"  +  +==<font color='green'>'''[SOLVED]'''</font> Note 3==  +* New package '''rng-tools''' is whining: ''Failed to init entropy source hwrng''  +* '''Solution:'''  + Leave as is for now. The full log is:  + <font size='1'>''Initalizing available sources  + Failed to init entropy source hwrng  + Enabling JITTER rng support  + Initalizing entropy source jitter''</font>  +* Comments:  +** Haven't found if Xilinx uses any driver for /dev/hwrng  +** TODO: Find out if the order of entropy sources can be changed  +  +==<font color='green'>'''-'''</font> Note 4==  +* php, what's that?  + <font size='1'>[  35.872118] BUG: unsupported FP instruction in kernel mode  + [  35.877621] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM  + [  35.883380] Modules linked in:  + [  35.886498] CPU: 1 PID: 1756 Comm: php Not tainted 4.14.0-xilinx-v2018.3 #1  + [  35.893459] Hardware name: Xilinx Zynq Platform  + [  35.897989] task: ee83f280 task.stack: ef1d6000  + [  35.902527] PC is at vfp_reload_hw+0x30/0x44  + [  35.906802] LR is at __und_usr_fault_32+0x0/0x8  + [  35.911338] pc : [<c0102e10>]    lr : [<c010c280>]    psr: a0000013  + [  35.917529] sp : ef1d7fb0  ip : 00000051  fp : 00000001  + [  35.922813] r10: ef1d61f8  r9 : c010c308  r8 : ee9893c0  + [  35.928040] r7 : 00000001  r6 : 00400100  r5 : c0138d08  r4 : ecd600f8  + [  35.934569] r3 : c0c6c064  r2 : b67bde8c  r1 : ecd9a224  r0 : eeb00a40  + [  35.941098] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none  + [  35.948241] Control: 18c5387d  Table: 2cda404a  DAC: 00000051  + [  35.953993] Process php (pid: 1756, stack limit = 0xef1d6210)  + [  35.959740] Stack: (0xef1d7fb0 to 0xef1d8000)  + [  35.964020] 7fa0:                                    a5f43f50 a5f43e18 00000080 00000000  + [  35.972269] 7fc0: 00000000 a5f43f4c b687b338 000000ae 00000000 bedcdfe4 00000001 a5f43ffc  + [  35.980385] 7fe0: a5f43f50 a5f43d7c b676cf78 b67bde8c 60000010 ffffffff 00000000 00000000  + [  35.988626] Code: 128aa080 e89a0162 e3110102 0a000003 (eee96a10)  + [  35.994724] ---[ end trace 06029778db6d2d90 ]---  + [  35.999422] note: php[1756] exited with preempt_count 2</font>  +  +==<font color='green'>'''[SOLVED]'''</font> Note 5==  +* MAC is not read from NAND, displays the default: 00:0e:64:10:00:00  +* Problem?  + [    3.639851] elphel393-init: Flash page read, code -95  +* Comments:  +** Lookup what had changed.  +* '''Solution:''' (for xlnx_rebase_v4.14 branch of linux-xlnx):  + In drivers/mtd/nand_base.c in nand_scan_tail() they call nand_manufacturer_init()  + which is mapped to a new driver drivers/mtd/nand_micron.c.  + So, when it fails - the driver init fails - mtd functions do not get assigned.  + (And the driver (drivers/elphel/elphel393_init.c) that reads from OTP area returns  + -95 which is EOPNOTSUPP.)  + We just need to fall through for a quick fix.  +  + The reason that function exits with an error is it decides that it does not support  + forcefully enabled on-die ECC. And this needs to be investigated.  +  +==<font color='green'>'''[SOLVED]'''</font> Note 6==  +* Problem:  + [    5.817352] udevd[1478]: starting version 3.2.7  + [    5.918028] udevd[1478]: specified group 'kvm' unknown  + [    5.986364] udevd[1479]: starting eudev-3.2.7  + [    6.142897] udevd[1479]: specified group 'kvm' unknown  +  +* Solution:  + KVM == Kernel-based Virtual Machine. Remove for now (and maybe forever)  + .  + └── udev  +     ├── eudev  +     │   └── 50-udev-default.rules  +     └── eudev_3.2.7.bbappend  +  + 50-udev-default.rules - gets installed over the original file.  +  +==<font color='green'>'''[SOLVED]'''</font> Note 7==  +* Problem:  + Ethernet driver's structure has changed. It was split into several files.  + Lives at /driver/net/ethernet/cadence/  +* Soluton:  + For out ethernet chip (Atheros 80xx) a fixup had to be added to disable SmartEEE.  + It's a single function, call and a couple defines - added all back to the new driver structure. Oleg

Oleg Dzhimiev committed changes to the Elphel git project :
reintroduced fixup to turn off SmartEEE feature to the updated driver