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74 lines
2.3 KiB
74 lines
2.3 KiB
4 months ago
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/*
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* Copyright (C) 2016 Marvell International Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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* https://spdx.org/licenses
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*/
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#ifndef A3700_CONSOLE_H
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#define A3700_CONSOLE_H
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#include <drivers/console.h>
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/* MVEBU UART Registers */
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#define UART_RX_REG 0x00
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#define UART_TX_REG 0x04
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#define UART_CTRL_REG 0x08
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#define UART_STATUS_REG 0x0c
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#define UART_BAUD_REG 0x10
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#define UART_POSSR_REG 0x14
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/* FIFO Control Register bits */
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#define UARTFCR_FIFOMD_16450 (0 << 6)
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#define UARTFCR_FIFOMD_16550 (1 << 6)
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#define UARTFCR_RXTRIG_1 (0 << 6)
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#define UARTFCR_RXTRIG_4 (1 << 6)
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#define UARTFCR_RXTRIG_8 (2 << 6)
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#define UARTFCR_RXTRIG_16 (3 << 6)
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#define UARTFCR_TXTRIG_1 (0 << 4)
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#define UARTFCR_TXTRIG_4 (1 << 4)
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#define UARTFCR_TXTRIG_8 (2 << 4)
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#define UARTFCR_TXTRIG_16 (3 << 4)
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#define UARTFCR_DMAEN (1 << 3) /* Enable DMA mode */
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#define UARTFCR_TXCLR (1 << 2) /* Clear contents of Tx FIFO */
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#define UARTFCR_RXCLR (1 << 1) /* Clear contents of Rx FIFO */
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#define UARTFCR_FIFOEN (1 << 0) /* Enable the Tx/Rx FIFO */
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/* Line Control Register bits */
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#define UARTLCR_DLAB (1 << 7) /* Divisor Latch Access */
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#define UARTLCR_SETB (1 << 6) /* Set BREAK Condition */
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#define UARTLCR_SETP (1 << 5) /* Set Parity to LCR[4] */
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#define UARTLCR_EVEN (1 << 4) /* Even Parity Format */
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#define UARTLCR_PAR (1 << 3) /* Parity */
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#define UARTLCR_STOP (1 << 2) /* Stop Bit */
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#define UARTLCR_WORDSZ_5 0 /* Word Length of 5 */
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#define UARTLCR_WORDSZ_6 1 /* Word Length of 6 */
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#define UARTLCR_WORDSZ_7 2 /* Word Length of 7 */
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#define UARTLCR_WORDSZ_8 3 /* Word Length of 8 */
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/* Line Status Register bits */
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#define UARTLSR_TXFIFOFULL (1 << 11) /* Tx Fifo Full */
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#define UARTLSR_TXEMPTY (1 << 6) /* Tx Empty */
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#define UARTLSR_RXRDY (1 << 4) /* Rx Ready */
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/* UART Control Register bits */
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#define UART_CTRL_RXFIFO_RESET (1 << 14)
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#define UART_CTRL_TXFIFO_RESET (1 << 15)
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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/*
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* Initialize a new a3700 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_a3700_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 /* A3700_CONSOLE_H */
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