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by lingon
Wed Jun 03, 2020 7:00 pm
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

The download problem was due to too strict cookie settings. I installed that release and the Raspberry Pi 4 cold boots and reboots fine with it from the eMMC module. vcgencmd version Jun 3 2020 13:08:21 Copyright (c) 2012 Broadcom version b5de8c32f4f45a12a1fdfe107254df82965f9d56 (clean) (release) (...
by lingon
Wed Jun 03, 2020 4:22 pm
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

The download problem was due to too strict cookie settings. I installed that release and the Raspberry Pi 4 cold boots and reboots fine with it from the eMMC module. vcgencmd version Jun 3 2020 13:08:21 Copyright (c) 2012 Broadcom version b5de8c32f4f45a12a1fdfe107254df82965f9d56 (clean) (release) (s...
by lingon
Wed Jun 03, 2020 3:19 pm
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

Is that link supposed to be public? I don't get the zip-file and the page prompts for a password.
by lingon
Wed May 27, 2020 7:35 pm
Forum: Ubuntu
Topic: SSD pi 4 boot beta applied - now: how to prepare ubuntu 20.04
Replies: 4
Views: 275

Re: SSD pi 4 boot beta applied - now: how to prepare ubuntu 20.04

It can be done as is discussed in this thread https://www.raspberrypi.org/forums/viewtopic.php?f=131&t=268476 , but at the moment it is a hack involving error prone manual work. And whenever the kernel is updated it needs to be decompressed manually. After flashing the USB MSD capable eeprom boot co...
by lingon
Tue May 26, 2020 3:17 pm
Forum: Ubuntu
Topic: Ubuntu from SSD - easy method
Replies: 12
Views: 1547

Re: Ubuntu from SSD - easy method

Has anyone running from a SSD encountered this error message? blk_update_request I/O err dev sda I tested the SSD several times and found no errors on it. By booting Ubuntu 20.04 into single user mode I was able to work around the errors that put the filesystem into a read only mode and install all ...
by lingon
Mon May 25, 2020 7:40 am
Forum: Ubuntu
Topic: Ubuntu from SSD - easy method
Replies: 12
Views: 1547

Re: Ubuntu from SSD - easy method

In the end I managed to get Ubuntu 20.04 booting from my SSD. My 500 GB Crucial BX 100 SSD is already quite old, but so far it has never given any I/O errors. It run without problems with Raspbian when I tested it shortly, but now I get some nasty timeouts and errors which slow down the boot of the ...
by lingon
Sun May 24, 2020 8:51 pm
Forum: Ubuntu
Topic: Ubuntu from SSD - easy method
Replies: 12
Views: 1547

Re: Ubuntu from SSD - easy method

The vmlinuz Aarch64 kernel is gzip compressed. Uncompressing it and booting the uncompressed kernel did not improve this.
My serial-USB cable has not yet given any output, but if the problem is before the kernel boots then it is expected.
by lingon
Sun May 24, 2020 4:55 pm
Forum: Ubuntu
Topic: Ubuntu from SSD - easy method
Replies: 12
Views: 1547

Re: Ubuntu from SSD - easy method

I did try this on a Raspberry Pi 4. It gets as far as to the rainbow screen where it hangs with only a SSD attached. Before that the USB-SSD enclosure status LED clearly blinks for a brief moment, so it is accessing the USB bus. I'll try to see if the serial console has some hints about what is fail...
by lingon
Fri May 22, 2020 2:11 pm
Forum: General discussion
Topic: Raspberry Pi 4 USB mass storage beta (beta means it not ready yet, and not officially released!)
Replies: 282
Views: 57426

Re: Raspberry Pi 4 USB mass storage beta

I had used quite a few of the previous eeprom beta versions, so initially my Raspberry Pi 4 was doing a SD-boot and then trying to infinitely do a PXE boot. I set explicitly NET_BOOT_MAX_RETRIES=0 in the boot configuration file and flashed the eeprom once more. After doing that I got the USB MSD boo...
by lingon
Fri May 15, 2020 5:39 pm
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

The eMMC module is discussed in this thread: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=248157&hilit=emmc . It is this module: https://www.friendlyarm.com/index.php?route=product/product&product_id=249 . It got stuck on the rainbow screen without any diagnostics. I flashed once more the...
by lingon
Fri May 15, 2020 2:20 pm
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

While waiting for the USB boot to start working I'm running on an eMMC module in my Raspberry Pi 4. pieeprom-2020-05-15.bin - USB mass storage boot beta USB boot also requires updated firmware (start.elf) I tried the upgrade to pieeprom-2020-05-15.bin even though the new start elf is not available. ...
by lingon
Tue May 12, 2020 8:37 pm
Forum: Advanced users
Topic: Increasing the EMMC2 frequency with vcmailbox for a EMMC module?
Replies: 0
Views: 74

Increasing the EMMC2 frequency with vcmailbox for a EMMC module?

I have an EMMC module with a uSD-EMMC adapter: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=248157 . On a Raspberry Pi 4 the EMMC module does not reach DDR50 speed. Would it be possible to read the EMMC2 frequency in use with vcmailbox and then set the frequency to twice the value to incr...
by lingon
Mon May 11, 2020 1:21 pm
Forum: Advanced users
Topic: Raspberry Pi 4 VL805 firmware release 0138a1
Replies: 11
Views: 2538

Re: Raspberry Pi 4 VL805 firmware release 0138a1

I made brief tests with two old SSD:s in different USB-boxes that I have. The first one is a 500 GB Crucial BX500 SSD in a LC-Power LC-25U3-C2 USB 3 enclosure with the chipset ASM235CM and UAS support. https://www.lc-power.com/en/product/hddssdm2-enclosures/635cm25/lc-25u3-c2/ . This device works wi...
by lingon
Thu May 07, 2020 2:54 pm
Forum: Troubleshooting
Topic: Audio recording (over USB) stuttery on RPi4
Replies: 9
Views: 399

Re: Audio recording (over USB) stuttery on RPi4

Which version of the VL805 firmware do you have? Run

Code: Select all

sudo rpi-eeprom-update
to find out the version. There is a new VL805 beta firmware available. It could be worth trying: viewtopic.php?f=29&t=273027#p1654842
by lingon
Mon May 04, 2020 10:23 am
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

timg236 wrote:
Thu Apr 23, 2020 4:18 pm

...
Although this won't make much difference to the normal SD-CARD boot configuration the HDMI diagnostics screen should make support easier because users can attach a picture.
...
Is the HDMI-diagnostic bitmap written to the boot media if the storage is available and writing to it succeeds?
by lingon
Wed Apr 29, 2020 6:47 pm
Forum: Troubleshooting
Topic: eMMC->micro SD adapter doesn't work on Raspberry Pi 4
Replies: 7
Views: 1071

Re: eMMC->micro SD adapter doesn't work on Raspberry Pi 4

I tested the uSD-eMMC adapter with the 32 GB eMMC module in a Raspberry Pi A with 256 MB of RAM and it failed to boot. The Raspberry Pi B with 512 MB of RAM, revision 000e is the one that I mentioned earlier in this thread wrongly as being of revision 2 that fails to boot. But the eMMC module boots ...
by lingon
Wed Apr 29, 2020 3:30 pm
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

The diagnostic boot screen works fine with the bootloader version dated the 16th of April. Looking forward to test the USB enabled bootloader version.
by lingon
Mon Apr 27, 2020 7:08 am
Forum: Troubleshooting
Topic: eMMC->micro SD adapter doesn't work on Raspberry Pi 4
Replies: 7
Views: 1071

Re: eMMC->micro SD adapter doesn't work on Raspberry Pi 4

I tried also updating to pieeprom-2019-11-18.bin ("Enable HS_TIMING for EMMC cards") and pieeprom-2020-01-17.bin (""Fix SD card voltage detect + DHCP option 0 padding ), but that did not increase the reading speed. I also updated to the latest currently available beta pieeprom-2020-04-16.bin, but th...
by lingon
Sun Apr 26, 2020 8:47 pm
Forum: Troubleshooting
Topic: eMMC->micro SD adapter doesn't work on Raspberry Pi 4
Replies: 7
Views: 1071

Re: eMMC->micro SD adapter doesn't work on Raspberry Pi 4

Thanks! Updatting the bootloader EEPROM to the beta release pieeprom-2019-10-16.bin got my Raspberry Pi 4 booting from the 32 GB eMMC-module. [email protected]:~# rpi-eeprom-update BCM2711 detected BOOTLOADER: up-to-date CURRENT: Wed 16 Oct 2019 05:00:03 PM UTC (1571245203) LATEST: Tue 10 Sep 2019 10...
by lingon
Sat Apr 25, 2020 4:56 pm
Forum: Troubleshooting
Topic: eMMC->micro SD adapter doesn't work on Raspberry Pi 4
Replies: 7
Views: 1071

Re: eMMC->micro SD adapter doesn't work on Raspberry Pi 4

The EEPROM version is the latest stable one. I assumed the patch would be included in that one, but I could be wrong of course. rpi-eeprom-update BCM2711 detected BOOTLOADER: up-to-date CURRENT: Tue 10 Sep 10:41:50 UTC 2019 (1568112110) LATEST: Tue 10 Sep 10:41:50 UTC 2019 (1568112110) FW DIR: /lib/...
by lingon
Sat Apr 25, 2020 1:07 pm
Forum: Troubleshooting
Topic: eMMC->micro SD adapter doesn't work on Raspberry Pi 4
Replies: 7
Views: 1071

Re: eMMC->micro SD adapter doesn't work on Raspberry Pi 4

I have the corresponding 32 GB eMMC module from Friendly Elec and the same uSD-eMMC passive adapter. https://www.friendlyarm.com/index.php?route=product/product&product_id=249 I wrote to the eMMC module the currently latest available version of Raspbian and pulled in all the updates. This eMMC setup...
by lingon
Thu Apr 23, 2020 6:20 pm
Forum: General discussion
Topic: Update to default Pi4 bootloader
Replies: 53
Views: 4633

Re: Update to default Pi4 bootloader

timg236 wrote:
Thu Apr 23, 2020 4:18 pm
...
The beta branch will then be used for USD-MSD test (well, once the last few integrations headaches are resolved anyway!)
Do you mean with "USD-MSD" USB mass storage devices? I guess there will be a lot of eager beta-testers one you release it.
by lingon
Wed Apr 22, 2020 2:22 pm
Forum: General discussion
Topic: Raspberry Pi 4 SD-interface maximum clock frequency?
Replies: 5
Views: 427

Re: Raspberry Pi 4 SD-interface maximum clock frequency?

Thanks for pointing out the thread from last November. I had not read it previously. I'm curious to know if the SD-interface on the Raspberry Pi 4 can run at 104 MHz or not. If not then I'm curious to know where the hardware limitation is that restricts the clock frequency to 50 MHz.
by lingon
Wed Apr 22, 2020 2:16 pm
Forum: Beginners
Topic: Questions about this "Raspberry Pi 4 USB SSD Boot Config" guide
Replies: 10
Views: 1472

Re: Questions about this "Raspberry Pi 4 USB SSD Boot Config" guide

Come on James, even Eben has got fed up with that line.... From twitter.... Eben Upton @EbenUpton · Apr 14 Very, very close now. I've seen it working. Turns out that getting it to work with devices connected via downstream hubs is a real pain. But it's imminent. PeterO PeterO, where on Twitter did ...
by lingon
Mon Apr 20, 2020 6:11 pm
Forum: General discussion
Topic: Raspberry Pi 4 SD-interface maximum clock frequency?
Replies: 5
Views: 427

Raspberry Pi 4 SD-interface maximum clock frequency?

According to this block diagram of the BCM2711 (in german) the SD-interface on the Raspberry Pi 4 is designated as DDR50. Is the Arasan SDIO capable of running at higher frequencies like 100 MHz or 208 MHz or is it limited to 50 MHz maximum? Is the block diagram an accurate representation of the BCM...

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