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Updated last post with devuan image boot. Check it out.
soystemd-free diet
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Updated last post with devuan image boot. Check it out.
thanks,
It seems the same for both images,
I believe that is the bootloader part only..
I am compiling a kernel with 'arasan mmc' driver..
In the devuan image you still don't pass the rainbow, right?
Best Regards,
tux
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In the devuan image you still don't pass the rainbow, right?
Yes.
soystemd-free diet
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tuxd3v wrote:In the devuan image you still don't pass the rainbow, right?
Yes.
humm,
The idea of a mainline kernel would be very nice, but it seems we need something more..
And if you change in 'config.txt'
kernel parameter to:
kernel=vmlinuz
You still get stuck at the rainbow?
Thanks in Advance for your help on this
Best Regards,
tux
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That's correct. Do you want kernel=vmlinuz boot dump also?
soystemd-free diet
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That's correct. Do you want kernel=vmlinuz boot dump also?
thanks,
yeah it would be nice to know why it is breaking..
Best Regards,
tux
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kernel=vmlinuz dump
PM_RSTS: 0x00001000
RPi: BOOTLOADER release VERSION:5e86aac5 Jan 17 2020 17:37:13 BOOTMODE: 0x00000006 part: 0 BUILD_TIMESTAMP=1579282631 0x4fb027ee 0x00c03111
uSD voltage 3.3V 1
SD_BOOT
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000f00 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
CID: 000353445343313647805210374a0119
CSD: 400e00325b59000076b27f800a404000
CSD: VER: 1 logical blocks: 30386 mult: 1024 rd(len: 512 partial: 0 misalign: 0) sectors: 31116288
SD: bus-width: 4 spec: 2 SCR: 0x02358443 0x00000000
SD HOST: 200000000 CTL0: 0x00000f04 BUS: 40000000 Hz actual: 33333333 HZ div: 6 (3) status: 0x1fff0000 delay: 2
MBR: 0x00002000, 524288 type: 0x0b
MBR: 0x00082000, 2867200 type: 0x83
MBR: 0x00000000, 0 type: 0x00
MBR: 0x00000000, 0 type: 0x00
part-offset: 8192 oem: mkfs.fat volume: boot
rsc: 32 sectors-per-fat: 4033 clusters: 516190 cluster-size: 1 root-dir: 2 root-sectors: 0
WEL: 0x00003fa2 0x00081fff
PM_RSTS: 0x00001000
Partition: 0
part-offset: 8192 oem: mkfs.fat volume: boot
rsc: 32 sectors-per-fat: 4033 clusters: 516190 cluster-size: 1 root-dir: 2 root-sectors: 0
Loading config.txt hnd: 0x000400ac
Initialising SDRAM 'Micron' 16Gb x2 total-size: 32 Gbit 3200
Loading recover4.elf hnd: 0x00000000
Failed to read recover4.elf error: 6
Loading recovery.elf hnd: 0x00000000
Failed to read recovery.elf error: 6
Loading start4cd.elf hnd: 0x00010d2c
Loading fixup4cd.dat hnd: 0x000002f2
MEM GPU: 16 ARM: 998 TOTAL: 1014
FIXUP src: 240 256 dst: 998 1014
Starting start4cd.elf @ 0xff000200
And just for the sake of it i dumped log from boot without SD card.
PM_RSTS: 0x00001000
RPi: BOOTLOADER release VERSION:5e86aac5 Jan 17 2020 17:37:13 BOOTMODE: 0x00000006 part: 0 BUILD_TIMESTAMP=1579282631 0x4fb027ee 0x00c03111
uSD voltage 3.3V 1
SD_BOOT
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000f00 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying EMMC
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying SDV1
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
ERROR: 2
CMDTM: 0x371a0010 ARG1: 0x00000000 waiting for cmd-index: 55
start: 579790 now: 581792 delay: 2002 max-delay: 2000
RESP0: 0x00000000 RESP1: 0x00000000: RESP2: 0x00000000 RESP3: 0x00000000
STATUS: 0x1fff0001 INTERRUPT: 0x00000000 CONTROL2: 0x00000000 BLKSIZECNT: 0x00000000
evtype: 0x00000050 error: 2 ''
evtype: 0x00000043 error: 2 ''
evtype: 0x0000001d error: 2 ''
Failed to open device: 'arasan-emmc0' 2
SD_BOOT
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000f00 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying EMMC
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying SDV1
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
ERROR: 2
CMDTM: 0x371a0010 ARG1: 0x00000000 waiting for cmd-index: 55
start: 771153 now: 773155 delay: 2002 max-delay: 2000
RESP0: 0x00000000 RESP1: 0x00000000: RESP2: 0x00000000 RESP3: 0x00000000
STATUS: 0x1fff0001 INTERRUPT: 0x00000000 CONTROL2: 0x00000000 BLKSIZECNT: 0x00000000
evtype: 0x00000050 error: 2 ''
evtype: 0x00000043 error: 2 ''
evtype: 0x0000001d error: 2 ''
Failed to open device: 'arasan-emmc0' 2
SD_BOOT
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000f00 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying EMMC
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying SDV1
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
ERROR: 2
CMDTM: 0x371a0010 ARG1: 0x00000000 waiting for cmd-index: 55
start: 962528 now: 964530 delay: 2002 max-delay: 2000
RESP0: 0x00000000 RESP1: 0x00000000: RESP2: 0x00000000 RESP3: 0x00000000
STATUS: 0x1fff0001 INTERRUPT: 0x00000000 CONTROL2: 0x00000000 BLKSIZECNT: 0x00000000
evtype: 0x00000050 error: 2 ''
evtype: 0x00000043 error: 2 ''
evtype: 0x0000001d error: 2 ''
Failed to open device: 'arasan-emmc0' 2
SD_BOOT
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000f00 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying EMMC
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
Trying SDV1
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
ERROR: 2
CMDTM: 0x371a0010 ARG1: 0x00000000 waiting for cmd-index: 55
start: 1153899 now: 1155901 delay: 2002 max-delay: 2000
RESP0: 0x00000000 RESP1: 0x00000000: RESP2: 0x00000000 RESP3: 0x00000000
STATUS: 0x1fff0001 INTERRUPT: 0x00000000 CONTROL2: 0x00000000 BLKSIZECNT: 0x00000000
evtype: 0x00000050 error: 2 ''
evtype: 0x00000043 error: 2 ''
evtype: 0x0000001d error: 2 ''
Failed to open device: 'arasan-emmc0' 2
BOOT_STOPPED: 0x00000001 0x0
FATAL @ 0x80002010
soystemd-free diet
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hello uther,
when you don't have sdcard inserted it indeed complains about 'arasan-emmc0'..
but I built the driver for it in the last beta..
What is strange to me is that it indeed starts 'start4cd.elf', which is a cut down version of start4.elf..
Which means memory for GPU is low..
On previous rpi's it would work, running the bootloader and it then loading vmlinuz..
By some reason is here doesn't work..
try to encrise 'gpu_mem' in config.txt to 64.
gpu_mem=64
And see if something goes different..
I am still actively trying to find a way to boot it with mainline kernel..
Best Regards,
tux
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Here's the log. We still don't have proper boot.
I'm thinking, maybe I should try with different SD card just for the sake of it?
Yeah, mainline kernel would be indeed very nice.
PM_RSTS: 0x00001000
RPi: BOOTLOADER release VERSION:5e86aac5 Jan 17 2020 17:37:13 BOOTMODE: 0x00000006 part: 0 BUILD_TIMESTAMP=1579282631 0x4fb027ee 0x00c03111
uSD voltage 3.3V 1
SD_BOOT
SD HOST: 200000000 CTL0: 0x00000000 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
SD HOST: 200000000 CTL0: 0x00000f00 BUS: 100000 Hz actual: 100000 HZ div: 2000 (1000) status: 0x1fff0000 delay: 1080
CID: 000353445343313647805210374a0119
CSD: 400e00325b59000076b27f800a404000
CSD: VER: 1 logical blocks: 30386 mult: 1024 rd(len: 512 partial: 0 misalign: 0) sectors: 31116288
SD: bus-width: 4 spec: 2 SCR: 0x02358443 0x00000000
SD HOST: 200000000 CTL0: 0x00000f04 BUS: 40000000 Hz actual: 33333333 HZ div: 6 (3) status: 0x1fff0000 delay: 2
MBR: 0x00002000, 524288 type: 0x0b
MBR: 0x00082000, 2867200 type: 0x83
MBR: 0x00000000, 0 type: 0x00
MBR: 0x00000000, 0 type: 0x00
part-offset: 8192 oem: mkfs.fat volume: boot
rsc: 32 sectors-per-fat: 4033 clusters: 516190 cluster-size: 1 root-dir: 2 root-sectors: 0
WEL: 0x00003fa2 0x00081fff
PM_RSTS: 0x00001000
Partition: 0
part-offset: 8192 oem: mkfs.fat volume: boot
rsc: 32 sectors-per-fat: 4033 clusters: 516190 cluster-size: 1 root-dir: 2 root-sectors: 0
Loading config.txt hnd: 0x000400b1
Initialising SDRAM 'Micron' 16Gb x2 total-size: 32 Gbit 3200
Loading recover4.elf hnd: 0x00000000
Failed to read recover4.elf error: 6
Loading recovery.elf hnd: 0x00000000
Failed to read recovery.elf error: 6
Loading start4.elf hnd: 0x0000f80a
Loading fixup4.dat hnd: 0x000002e5
MEM GPU: 64 ARM: 960 TOTAL: 1024
FIXUP src: 128 256 dst: 960 1024
Starting start4.elf @ 0xfec00200
soystemd-free diet
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humm, yeah something is missing..
FM81, made a Image for RPi4..
tough I don't know the quality of it, nor the binaries in it..
It would be nice to test, and check if its booting, probably is, because he used a lot of raspberrypi stuff..
Best Regards,
tux
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I assume the default kernel that comes in Raspbian is the '4.19.75-v7l+' ?
v8+ started shipping with 4.19.75. 4.19.93 came out for Raspbian/sid mid January. If you also have a Pi 3, i updated my guide elsewhere how to slap it on top of Ascii for Pi 3 and get it running on a Pi 4.
What is your purpose with this? Getting kernel 5.5 running? Tell me how i can help and what i need to set up.
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hello therion23,
The idea would be to have mainline kernel running on raspberryPI4..
Initial support landed recently, now in kernel 5.6 comes thermal driver,
I just saw the commits to mainline
create mode 100644 drivers/thermal/broadcom/bcm2711_thermal.c
delete mode 100644 drivers/thermal/cpu_cooling.c
create mode 100644 drivers/thermal/cpufreq_cooling.c
create mode 100644 drivers/thermal/cpuidle_cooling.c
create mode 100644 drivers/thermal/sun8i_thermal.c
yes, also thermal driver for Allwiner H6( but I have a patch for it, in the meantime, and its applied so, no hurry )
Long Story short,
we( me and uther ), have been trying to have a server Image for RPi4, with mainline support, and trying to avoid the blob madness with RaspberryPi firmware/kernel trees..
The Last image is in this NetWork Share:
The Image is 'devuan-ascii-rpi4-arm64-0.2-beta.img.xz'
'Kernel/headers/Libc-dev' deb packages for '5.5.0' is also in the share( in the event of Success, can be copied to sdcard and installed via 'dpkg -i' )..
'/etc/default/rng-tools'
Point automatically to '/dev/urandom'( just in case.. when we managed to boot it, we will see if a driver exists, we will change to it.. ), in the meantime..
HRNGDEVICE=/dev/urandom
'config.txt'
arm_64bit=1
kernel=bootloader.bin
total_mem=3072
'bootloader.bin':
Is the u-boot that then will load the 'vmlinuz'
'boot.cmd'
The same content as 'boot.scr', but is a text human readable file
'boot.scr'
Is the binary file uboot( 'bootloader.bin' ) will load with all the instructions to start the Linux Kernel for Raspberry Pi4( now..if it just worked would be nice )
'vmlinuz'
Is the Linux Kernel... the name contains a 'z'( vmlinuz ), but the Image is not compressed, so its a 'vmlinux' binary file ( in ARM64 is impossible to boot compressed Kernels, at least for now.. ).
So even tough the name suggests compression its a uncompressed kernel..
-------------------------------------------
The Idea..
config.txt -> bootloader.bin->uboot.scr->vmlinuz init=/sbin/init
The problem,
I don't have a RPi4,
Uther have been doing all the testing( which I am also grateful to him, for helping out on this ).
We tried to reach more colleagues( to increase the probability of Success ), but some say they cannot download the Image, other doesn't stepped in..
For what it seems the Image doesn't boot, it stops in the Rainbow( initially when hdmi is connected to monitor )..
It his needed further testing, getting the Serial uart console data to see what is happening..
Or even changing something, that we were unable to figure out..
If you, can help us out, it would be very nice
We know that the boot process in RPi4 changed, and maybe we are stuck there
Best Regards,
tux
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Right - that and the talk on freenode gave me a clear view of what you are trying to do
Normally i have three day weekends, and this one starts tomorrow afternoon European time, so as soon as i get the TTL adapter playing nice with macOS, i will test and we will talk again.
Will try to be on freenode when i am actually at the desk, ok? Easier that way.
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Right - that and the talk on freenode gave me a clear view of what you are trying to do
Normally i have three day weekends, and this one starts tomorrow afternoon European time, so as soon as i get the TTL adapter playing nice with macOS, i will test and we will talk again.
Will try to be on freenode when i am actually at the desk, ok? Easier that way.
Thanks therion23,
Ok when you can
Regards,
Best Regards,
tux
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Right, sorry for being late, but let's test that over the weekend. Getting the image now, as soon as i wake up i will catch you and talk to you, ok?
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hi tuxd3v, therion. I hope, since therion23 joined, the work wil go much faster
I've found some time and done the following on stock Raspbian:
Things that would be interesting would be,
a) If you have a serial debugger, connect to the uart, and get all the information about bootloader/boot process.
b) Find if thermal zones do exist, what temps system have..if something really out of what to be expected..
find /sys/class/thermal -name thermal_\* -exec ls -l {} \; -exec cat {}/temp \;
c) Get information about cpuinfo, and if it is correct..
'cat /proc/cpuinfo'
d) get information about swap, and system memory:
swapon -a && free -m
e) check swap quantity and algos( it should be 'lz4' )
swapon --show
find /sys/class/block -name zram\* -exec cat {}/comp_algorithm \;
f) List Loaded Modules:
lsmod
pi@raspberrypi:~ $ find /sys/class/thermal -name thermal_\* -exec ls -l {} \; -exec cat {}/temp \;
lrwxrwxrwx 1 root root 0 Feb 8 12:04 /sys/class/thermal/thermal_zone0 -> ../../devices/virtual/thermal/thermal_zone0
43816
pi@raspberrypi:~ $ cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 108.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 1
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 108.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 2
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 108.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 3
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 108.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
Hardware : BCM2835
Revision : c03111
Serial : 100000004fb027ee
Model : Raspberry Pi 4 Model B Rev 1.1
pi@raspberrypi:~ $ swapon -a && free -m
total used free shared buff/cache available
Mem: 3906 166 3516 39 223 3581
Swap: 99 0 99
pi@raspberrypi:~ $ swapon --show
NAME TYPE SIZE USED PRIO
/var/swap file 100M 0B -2
pi@raspberrypi:~ $ find /sys/class/block -name zram\* -exec cat {}/comp_algorithm \;
returned nothing because /sys/class/block doesn't contain zram:
pi@raspberrypi:/sys/class/block $ ls
loop0 loop3 loop6 mmcblk0p1 mmcblk0p6 ram1 ram12 ram15 ram4 ram7
loop1 loop4 loop7 mmcblk0p2 mmcblk0p7 ram10 ram13 ram2 ram5 ram8
loop2 loop5 mmcblk0 mmcblk0p5 ram0 ram11 ram14 ram3 ram6 ram9
pi@raspberrypi:~ $ lsmod
Module Size Used by
rfcomm 49152 4
bnep 20480 2
hci_uart 40960 1
btbcm 16384 1 hci_uart
serdev 20480 1 hci_uart
bluetooth 389120 29 hci_uart,bnep,btbcm,rfcomm
ecdh_generic 28672 1 bluetooth
fuse 110592 3
8021q 32768 0
garp 16384 1 8021q
stp 16384 1 garp
llc 16384 2 garp,stp
hid_logitech_hidpp 40960 0
evdev 24576 11
bcm2835_codec 36864 0
v4l2_mem2mem 24576 1 bcm2835_codec
bcm2835_v4l2 45056 0
bcm2835_mmal_vchiq 32768 2 bcm2835_codec,bcm2835_v4l2
brcmfmac 311296 0
v4l2_common 16384 1 bcm2835_v4l2
videobuf2_dma_contig 20480 1 bcm2835_codec
videobuf2_vmalloc 16384 1 bcm2835_v4l2
vc4 176128 3
videobuf2_memops 16384 2 videobuf2_dma_contig,videobuf2_vmalloc
videobuf2_v4l2 24576 3 bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem
brcmutil 16384 1 brcmfmac
videobuf2_common 45056 4 bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2
v3d 73728 3
videodev 200704 6 bcm2835_codec,v4l2_common,videobuf2_common,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2
drm_kms_helper 184320 2 vc4
gpu_sched 28672 1 v3d
media 36864 3 bcm2835_codec,videodev,v4l2_mem2mem
vc_sm_cma 36864 1 bcm2835_mmal_vchiq
sha256_generic 20480 0
drm 442368 10 v3d,vc4,gpu_sched,drm_kms_helper
cfg80211 647168 1 brcmfmac
drm_panel_orientation_quirks 16384 1 drm
raspberrypi_hwmon 16384 0
hwmon 16384 1 raspberrypi_hwmon
snd_soc_core 192512 1 vc4
rpivid_mem 16384 0
snd_compress 20480 1 snd_soc_core
snd_pcm_dmaengine 16384 1 snd_soc_core
rfkill 28672 6 bluetooth,cfg80211
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
snd_bcm2835 24576 2
snd_pcm 102400 4 vc4,snd_pcm_dmaengine,snd_bcm2835,snd_soc_core
snd_timer 32768 1 snd_pcm
snd 73728 9 snd_compress,snd_timer,snd_bcm2835,snd_soc_core,snd_pcm
uio_pdrv_genirq 16384 0
uio 20480 1 uio_pdrv_genirq
hid_logitech_dj 20480 0
i2c_dev 20480 0
ip_tables 24576 0
x_tables 32768 1 ip_tables
ipv6 454656 22
Last edited by uther (2020-02-08 12:52:36)
soystemd-free diet
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Hey, no, for some reason i still do not get notification mails - but we will see! this time tomorrow i might have some news, had to go to a concert last night and i keep missing tux on freenode - we should work on that! hahaha
Anyway, talk soon - come on freenode if you are bored!
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hi tuxd3v, therion. I hope, since therion23 joined, the work wil go much faster
I've found some time and done the following on stock Raspbian:
hi uther,
thanks, so they don't use zram as swap, on raspbian
they have a lot of modules that could be interesting to match with something similar in mainline
I am on freenode
some issues with my machine prevented me from 2 days, but I am recovering now
Best Regards,
tux
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No worries - we will get things happening!
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soystemd-free diet
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Indeed uther,
The Future of SBCs is clearly opensource and the other vendors products are aspiring to get mainline kernel support..
Lets hope that official 5.7 Kernel will bring this pach's( more than 80 patch's.. ).
In Fact this should have happened already last year( don't know why RaspberryPi Foundation is taking so long.. or why is holding back.. ).
Best Regards,
tux
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Quick question: Instead of messing around with USB-to-TTL adapters with dodgy drivers, isn't it possible to just connect pins 3, 4 and 5 to 3, 5 and 4 (crossing RX and TX but keeping GND) of another Pi, using standard dupont wires?
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don't know why RaspberryPi Foundation is taking so long.. or why is holding back..
They are way behind schedule, when it was released it was supposed to be able to boot from USB3, now, 7 months later, & we still don't have USB booting!
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I've managed to build an image using beowulf and kernel 4.19, which gives:
Linux devuan 4.19.108-v8+ #1298 SMP PREEMPT Fri Mar 6 18:15:51 GMT 2020 aarch64 GNU/Linux
Used linaro 7.5.0-2019.12 and u-boot v2020.01 plus tweaked arm-sdk settings to get 4 GB.
Getting total memory (with free -b): 3937673216
Available at
http://devuan.metatem.net/dist/raspi4/k … img.xz.sha
(Remove .sha at the end for the actual image. Home server, so be kind...)
Enjoy!
MetaYan on #devuan-arm
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I've managed to build an image using beowulf and kernel 4.19, which gives:
I hope someone with a rpi4 tests your build
Best Regards,
tux
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