[Xen-devel] Failing to set up serial console for an s32v234-evb board (ARMv8)

[Johannes.3.Horn@xxxxxxxxxxxxxxxxxxxxxxxxxxx]

Hi
I'm writing my master thesis about using
hypervisors on automotive high performance plattforms. As a part of my
work for the thesis I'm trying to set up xen on a s32v234-evb (ARMv8) board
using u-boot 2016.01. But I can't find a way of getting any output after
u-boot try's to start the xen kernel.

If I boot to the kernel which will be
used as dom0 the console is working fine and I im able to use the board.
Following the xen serial console wiki page I build following xen bootargs:
"sync_console console=com1 com1=115200,8n1,0x40053000,23 earlyprintk=xen
dom0_mem=128M" as "dmesg | grep tty" returned 
[ 0.488454] 40053000.serial: ttyLF0
at MMIO 0x40053000 (irq = 23, base_baud = 4166666) is a FSL_LINFLEX
[ 2.445563] console [ttyLF0] enabled
[ 2.457893] 400bc000.serial: ttyLF1
at MMIO 0x400bc000 (irq = 36, base_baud = 4166666) is a FSL_LINFLEX

I also tryed to use "sync_console
console=dtuart dtuart=/soc/aips-bus@40000000/serial@4005300 dom0_mem=128M"
and "sync_console console=dtuart dtuart=serial0 dom0_mem=128M"
as my dtb contains an alias for the first to serial0

The serial interface is defined as shown
below within the dtb

=> fdt list /soc/aips-bus@40000000/serial@40053000
serial@40053000 {
        compatible
= "fsl,s32v234-linflexuart";
        reg = <0x00000000
0x40053000 0x00000000 0x00001000>;
        interrupts
= <0x00000000 0x0000003b 0x00000001>;
        clocks =
<0x00000002 0x00000073 0x00000002 0x00000074>;
        clock-names
= "lin", "ipg";
        dmas = <0x00000006
0x00000000 0x00000014 0x00000006 0x00000000 0x00000013>;
        dma-names
= "rx", "tx";
        status =
"okay";
        pinctrl-names
= "default";
        pinctrl-0
= <0x00000008>;
};

Mit freundlichen Grüßen / Best regards,
Johannes Horn
_______________
Johannes Horn
Continental Automotive GmbH
Corporate Systems & Technology

E-Mail: johannes03.horn@xxxxxxxxxxxxxxxxxxxxxxxxxxx
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