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b07e449d15
Altera provides a JTAG UART core that provides virtual UART over JTAG and can coexist with their virtual JTAG. [1] This core has already been supported by Linux and the programming interface has always been stable. Add support for it to OpenSBI to ease JTAG prototype bringing up. The driver follows the device tree binding in mainline Linux. [2] [1] https://docs.altera.com/r/docs/683130/25.3/embedded-peripherals-ip-user-guide/jtag-uart-core [2] https://github.com/torvalds/linux/blob/v6.19-rc1/Documentation/devicetree/bindings/serial/altr%2Cjuart-1.0.yaml Signed-off-by: Icenowy Zheng <zhengxingda@iscas.ac.cn> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20260104065506.70182-1-zhengxingda@iscas.ac.cn Signed-off-by: Anup Patel <anup@brainfault.org>
18 lines
282 B
C
18 lines
282 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2025 ISCAS
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*
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* Authors:
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* Icenowy Zheng <zhengxingda@iscas.ac.cn>
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*/
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#ifndef __SERIAL_ALTR_JUART_H__
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#define __SERIAL_ALTR_JUART_H__
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#include <sbi/sbi_types.h>
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int altr_juart_init(unsigned long base);
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#endif
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