Hi Fabio,
On Mon, 25 Sep 2023 at 15:04, Fabio Estevam festevam@gmail.com wrote:
Hi Rogan,
On Mon, Sep 25, 2023 at 6:52 AM Rogan Dawes rogan@dawes.za.net wrote:
Hi Fabio,
I used the following diff with "make mx28evk_defconfig", but
unfortunately still get absolutely nothing on the DUART when running "mxsloader u-boot.sb". In fact, mxsloader returns immediately on trying to load my own u-boot.sb, whereas it hangs when running the vendor u-boot.sb, I assume because the CALL never returns. Additionally, there is no need to reset the board between attempting a custom u-boot and the vendor u-boot, indicating that the ROM-based SDP protocol handler is still running. This suggests that there is something wrong with the format of the u-boot.sb file which the ROM-based SDP protocol handler is rejecting, I would think?
I just tested loading u-boot.sb via mxsldr on my imx28-evk.
I configured the boot jumpers to USB boot, turned on the board and then saw that it gets recognized by the host PC:
$ dmesg .... [1710347.828895] usb 1-1: new high-speed USB device number 96 using xhci_hcd [1710347.977657] usb 1-1: New USB device found, idVendor=15a2, idProduct=004f, bcdDevice= 0.01 [1710347.977672] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [1710347.977678] usb 1-1: Product: ROM Recovery [1710347.977682] usb 1-1: Manufacturer: Freescale,Inc. [1710347.979708] hid-generic 0003:15A2:004F.0014: hiddev0,hidraw1: USB HID v1.10 Device [Freescale,Inc. ROM Recovery] on usb-0000:00:14.0-1/input0
After that, I loaded the u-boot.sb via mxsldr:
$ sudo ./mxsldr u-boot.sb Detected: i.MX28 Chip ID: 0x2800 Chip Revision: 0x0001 ROM Version: 0x0101 Protocol Version: 0x0100
Do you get these messages above (both the dmesg as well the messages after running mxsldr)?
Yes, I get both the dmesg output showing the usb device, and the output from mxsldr.
And in the console, I do see the U-Boot messages coming up:
I see absolutely nothing in the console.
I’m wondering whether I can possibly execute the vendor SPL with a modern u-boot?
And if that works, try and narrow down the differences.
Rogan