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38 lines
767 B
C
38 lines
767 B
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* BCM63XX specific implementation parts
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*
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* Copyright (C) 2020 Álvaro Fernández Rojas <noltari@gmail.com>
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* Copyright (C) 2014 Jonas Gorski <jogo@openwrt.org>
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*/
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#include <stddef.h>
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#include "config.h"
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#define READREG(r) *(volatile unsigned int *)(r)
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#define WRITEREG(r,v) *(volatile unsigned int *)(r) = v
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#define UART_IR_REG 0x10
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#define UART_FIFO_REG 0x14
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static void wait_xfered(void)
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{
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unsigned int val;
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do {
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val = READREG(UART_BASE + UART_IR_REG);
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if (val & (1 << 5))
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break;
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} while (1);
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}
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void board_putc(int ch)
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{
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if (!UART_BASE)
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return;
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wait_xfered();
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WRITEREG(UART_BASE + UART_FIFO_REG, ch);
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wait_xfered();
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}
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