On 05/29/2017 01:57 PM, Tom Rini wrote:
The issue is actually with serial-uclass.c when the kernel dts contains a chosen node that contains the stdout-path. chosen { stdout-path = "serial0:115200n8"; };
Disabling uart0 (ie serial0) in u-boot.dtsi loses the console instead of probing the pl01x for the platform_data.
is there a pre-defined way to work around this?
Provide a new stdout-path in the -u-boot.dtsi too? Any changes you
yes I obviously tried that but are you sure that that is allowed with "chosen" it being kind of a special type of node? the compiler just cant find the label when added to u-boot.dtsi hence why I was asking (sorry, I should have raised it upfront) ie:
/* * U-Boot addition to: * 1) use platform data for the console * 2) provide support for the generic-ehci USB driver currently not available * in the linux kernel (8/May/2017). * * (C) Copyright 2017 Jorge Ramirez-Ortiz jorge.ramirez-ortiz@linaro.org * * SPDX-License-Identifier: GPL-2.0+ */
&soc { usb2: ehci@9890000 { compatible = "generic-ehci"; reg = <0x9890000 0x100>; status = "okay"; }; };
&uart0 { status = "disabled"; };
&chosen { stdout-path = &uart0;
};
leads to
LD u-boot OBJCOPY u-boot.srec OBJCOPY u-boot-nodtb.bin SYM u-boot.sym start=$(aarch64-linux-gnu-nm u-boot | grep __rel_dyn_start | cut -f 1 -d ' '); end=$(aarch64-linux-gnu-nm u-boot | grep __rel_dyn_end | cut -f 1 -d ' '); tools/relocate-rela u-boot-nodtb.bin 0x37000000 $start $end DTC arch/arm/dts/hi3798cv200-poplar.dtb Error: ./arch/arm/dts/hi3798cv200-u-boot.dtsi:27.2-3 label or path, 'chosen', not found FATAL ERROR: Syntax error parsing input tree scripts/Makefile.lib:322: recipe for target 'arch/arm/dts/hi3798cv200-poplar.dtb' failed make[2]: *** [arch/arm/dts/hi3798cv200-poplar.dtb] Error 1 dts/Makefile:32: recipe for target 'arch/arm/dts/hi3798cv200-poplar.dtb' failed make[1]: *** [arch/arm/dts/hi3798cv200-poplar.dtb] Error 2 Makefile:865: recipe for target 'dts/dt.dtb' failed make: *** [dts/dt.dtb] Error 2
could make to the main dts file so that this would work should be able to be done in the -u-boot.dtsi too.