u-boot-brain/arch/arm/dts/bcm283x-u-boot.dtsi
Matthias Brugger 5051377a0b arm: dts: bcm283x: Rename U-Boot file
Rename the file bcm283x-uboot.dtsi so that it get
automatically include through the scripts/Makefile.lib
using $(CONFIG_SYS_SOC))-u-boot.dtsi

Without this uarts and pincontroller miss the property dm-pre-reloc
and the first call to bcm283x_mu_serial_ofdata_to_platdata() fails
as the pins are not set correctly.
As a result the U-Boot banner isn't shown on boot.

Before commmit
143256b353 ("fdt: update bcm283x device tree sources to Linux 5.1-rc6 state")
we included bcm283x-uboot.dtsi directly in the device-tree file.
Which got deleted by the metioned commit.
This is a much robuster solution.

Reported-by: Tom Rini <trini@konsulko.com>
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Tom Rini <trini@konsulko.com> [RPi 3, 32b and 64b modes]
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2019-11-24 10:46:27 +01:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* U-Boot addition to keep baudrate set by firmware
* and also initialize before relocation.
*
* (C) Copyright 2016 Fabian Vogt <fvogt@suse.com>
*/
&uart0 {
skip-init;
u-boot,dm-pre-reloc;
};
&uart1 {
skip-init;
u-boot,dm-pre-reloc;
};
&gpio {
u-boot,dm-pre-reloc;
};