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https://github.com/brain-hackers/u-boot-brain
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6cbb41432d
At present the pinctrl nodes are not enabled in pre-relocation U-Boot so
the UARTs do not correctly select the pinconfig to enable the UART pins.
Fix this so that the U-Boot banner is printed.
This fixes serial output on rpi_3b_32b with the following config.txt
options:
enable_uart=1
gpu_freq=250
Signed-off-by: Simon Glass <sjg@chromium.org>
Fixes: 9821636b64 (bcm2835_pinctrl: Probe pre-reloc)
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
30 lines
404 B
Plaintext
30 lines
404 B
Plaintext
// SPDX-License-Identifier: GPL-2.0+
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/*
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* U-Boot addition to keep baudrate set by firmware
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* and also initialize before relocation.
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*
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* (C) Copyright 2016 Fabian Vogt <fvogt@suse.com>
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*/
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&uart0 {
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skip-init;
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u-boot,dm-pre-reloc;
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};
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&uart1 {
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skip-init;
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u-boot,dm-pre-reloc;
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};
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&gpio {
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u-boot,dm-pre-reloc;
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};
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&uart0_gpio14 {
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u-boot,dm-pre-reloc;
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};
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&uart1_gpio14 {
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u-boot,dm-pre-reloc;
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};
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