Hi Martin,
You are right handling alias node is a bug in current DTG and we have a CR to
fix this. This manual fix applies to UART, I2C, SPI, Ethernet interfaces.
Also you need to fix your i2c alias node or else HDMI doesn't work.
/ {
chosen {
bootargs = "earlycon clk_ignore_unused consoleblank=0 cma=1700M
uio_pdrv_genirq.of_id=generic-uio cpuidle.off=1";
stdout-path = "serial0:115200n8";
};
aliases {
ethernet0 = &gem3;
i2c0 = &i2c0;
i2c1 = &i2c1;
i2c2 = &mpsoc_ss_hdmi_ctrl_iic;
serial0 = &uart0;
serial1 = &uart1;
spi0 = &qspi;
};
};
Thanks,
Sandeep
From: Martin Hollingsworth <[email protected]>
Sent: Friday, August 14, 2020 4:22 AM
To: Sandeep Gundlupet Raju <[email protected]>;
[email protected]
Subject: AW: Booting zcu104-zynqmp using meta-xilinx-tools
Hello together,
to close this topic off, I have found the reason why my linux doesn't boot,
it's the dtb included in boot.bin. As a workaround, I figured out that my
system can boot when I build the petalinux-image-minimal with my custom XSA
using petalinux-tools following UG1144.
By retrieving bootgen.bif from the yocto build output, then replacing
<machine>-system.dtb with the system.dtb output from petalinux-tools, and then
generating a new boot.bin (using bootgen, see UG1283) I can now boot my linux
kernel generated with yocto.
Running a diff on the autogenerated system-top.dts between yocto and
petalinux-tools, I see only trivial changes in uart aliases. Why these happen,
although both build systems use the same Xilinx tools in the background to
autogenerate the dts, I don't understand yet.
--diff--
aliases {
ethernet0 = &gem3;
i2c0 = &hdmi_ctl_iic;
i2c1 = &i2c0;
i2c2 = &i2c1;
- serial0 = &axi_uart16550_0;
+ serial0 = &uart0;
serial1 = &axi_uart16550_1;
- serial2 = &uart0;
+ serial2 = &axi_uart16550_0;
serial3 = &uart1;
spi0 = &qspi;
};
--------
I am now planning on using my own dts and to skip the dts autogeneration
completely.
Best regards and thanks to your support,
Martin
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