Difference between revisions of "Poky migration from rocko to warrior"

From ElphelWiki
Jump to: navigation, search
([SOLVED] Note 6)
Line 84: Line 84:
 
  permissions.rules - overrides the same file from the original recipe
 
  permissions.rules - overrides the same file from the original recipe
 
                     it does not have 'kvm'
 
                     it does not have 'kvm'
 +
 +
==<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) we had to a fixup to disable SmartEEE.
 +
It's a single function, call and a couple defines - added all back to the new driver structure.

Revision as of 10:54, 30 July 2019

[SOLVED] Note 1

  • /dev/xdevfg got obsolete - there's fpga manager instead which cannot load *.bit (only *.bin or *.bit.bin)
  • Solution:
Brought back the old driver (drivers/char/xilinx_devcfg.c and edited Kconfig and Makefile)- it works as it used to

[SOLVED] Note 2

  • php 5.6.40 - EOL and won't build - mysql supposedly moved header files.
  • Solution:
Disabled mysql extension:
To meta-elphel393/recipes-devtools/php/php_5.6.%.bbappend:
    PACKAGECONFIG[mysql] = "--without-mysql --without-mysqli --without-pdo-mysql"
    CFLAGS += " -ldl"

[SOLVED] Note 3

  • New package rng-tools is whining: Failed to init entropy source hwrng
  • Solution:
Leave as is for now. The full log is:
Initalizing available sources
Failed to init entropy source hwrng
Enabling JITTER rng support
Initalizing entropy source jitter
  • Comments:
    • Haven't found if Xilinx uses any driver for /dev/hwrng
    • TODO: Find out if the order of entropy sources can be changed

- Note 4

  • php, what's that?
[   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

[SOLVED] 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.

[SOLVED] 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
    │   └── permissions.rules
    └── eudev_3.2.7.bbappend
permissions.rules - overrides the same file from the original recipe
                    it does not have 'kvm'

[SOLVED] 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) we had to a fixup to disable SmartEEE.
It's a single function, call and a couple defines - added all back to the new driver structure.