diff --git a/arch/arc/boot/dts/angel4.dts b/arch/arc/boot/dts/angel4.dts index bcf662d21a57b38fbb6c34ee26033fcd33b0e148..5bb2fdaca02f9ace5f92a3934d0be7cb79d4c697 100644 --- a/arch/arc/boot/dts/angel4.dts +++ b/arch/arc/boot/dts/angel4.dts @@ -17,7 +17,7 @@ interrupt-parent = <&intc>; chosen { - bootargs = "console=ttyARC0,115200n8"; + bootargs = "console=ttyARC0,115200n8 earlyprintk=ttyARC0"; }; aliases { diff --git a/arch/arc/plat-arcfpga/platform.c b/arch/arc/plat-arcfpga/platform.c index f09e771b4bbdbbee4f1fbcb4010a0e6f802da68d..61c7e5997387bc1292cf05b1de81297856aa5865 100644 --- a/arch/arc/plat-arcfpga/platform.c +++ b/arch/arc/plat-arcfpga/platform.c @@ -79,16 +79,11 @@ static void arc_fpga_serial_init(void) ARRAY_SIZE(fpga_early_devs)); /* - * ARC console driver registers itself as an early platform driver - * of class "earlyprintk". - * Install it here, followed by probe of devices. - * The installation here doesn't require earlyprintk in command line - * To do so however, replace the lines below with - * parse_early_param(); - * early_platform_driver_probe("earlyprintk", 1, 1); - * ^^ + * ARC console driver registers (build time) as an early platform driver + * of class "earlyprintk". However it needs explicit cmdline toggle + * "earlyprintk=ttyARC0" to be successfuly runtime registered. + * Otherwise the early probe below fails to find the driver */ - early_platform_driver_register_all("earlyprintk"); early_platform_driver_probe("earlyprintk", 1, 0); /*