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45 lines
1.2 KiB
45 lines
1.2 KiB
7 months ago
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/*
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* Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef CDNS_UART_H
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#define CDNS_UART_H
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#include <drivers/console.h>
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/* This is very minimalistic and will only work in QEMU. */
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/* CADENCE Registers */
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#define R_UART_CR 0
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#define R_UART_CR_RXRST (1 << 0) /* RX logic reset */
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#define R_UART_CR_TXRST (1 << 1) /* TX logic reset */
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#define R_UART_CR_RX_EN (1 << 2) /* RX enabled */
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#define R_UART_CR_TX_EN (1 << 4) /* TX enabled */
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#define R_UART_SR 0x2C
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#define UART_SR_INTR_REMPTY_BIT 1
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#define UART_SR_INTR_TFUL_BIT 4
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#define UART_SR_INTR_TEMPTY_BIT 3
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#define R_UART_TX 0x30
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#define R_UART_RX 0x30
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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/*
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* Initialize a new Cadence console instance and register it with the console
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* framework. The |console| pointer must point to storage that will be valid
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* for the lifetime of the console, such as a global or static local variable.
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* Its contents will be reinitialized from scratch.
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*/
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int console_cdns_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud,
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console_t *console);
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#endif /*__ASSEMBLER__*/
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#endif /* CDNS_UART_H */
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