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The VERSAL2_CONSOLE variable does not actually exist when building the atf
with plat=versal2. So the current VERSAL2_CONSOLE=cadence1 is not actually
doing anything. For this reason, the atf will print on its default console
which is UART0 or pl011_0.
The correct definition would be CONSOLE=pl011_1 in order to build the atf to
print on UART1 or pl011_1.
However, the git repo xparameters.h of the versal2_plm is not currently
enabling UART1 because the XPAR_XUARTPSV_NUM_INSTANCES is set to 1 including
the address defines only for UART0.
97f2baf7f6/lib/sw_apps/versal_plm/misc/versal_2ve_2vm/xparameters.h (L1519)
The problem with this is that the plm is not configuring UART1, so the atf
will crash at boot time, if it is built with CONSOLE=pl011_1 and the plm has
not already enabled UART1.
For now, we will remove the unnecessary config that is doing nothing. The
versal2_vek385_defconfig is working, but users need to currently open two
console windows to see the boot log because the current config is the
following.
plm - console uart0
asufw - console uart0
atf - console uart0
optee-os - console uart1
u-boot - console uart1
Linux - console uart1
A patch has been submitted to the embeddedsw repo to fix the xparameters.h
file such that the plm will correctly enable UART1. Once this is applied, we
will configure the plm and atf to use UART1 with the versal2_vek385_defconfig.
Signed-off-by: Neal Frager <neal.frager@amd.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at https://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches