1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (C) 2016 Marvell International Ltd. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu * https://spdx.org/licenses 6*91f16700Schasinglulu */ 7*91f16700Schasinglulu 8*91f16700Schasinglulu #ifndef A3700_CONSOLE_H 9*91f16700Schasinglulu #define A3700_CONSOLE_H 10*91f16700Schasinglulu 11*91f16700Schasinglulu #include <drivers/console.h> 12*91f16700Schasinglulu #include <platform_def.h> 13*91f16700Schasinglulu 14*91f16700Schasinglulu /* MVEBU UART Registers */ 15*91f16700Schasinglulu #define UART_RX_REG 0x00 16*91f16700Schasinglulu #define UART_TX_REG 0x04 17*91f16700Schasinglulu #define UART_CTRL_REG 0x08 18*91f16700Schasinglulu #define UART_STATUS_REG 0x0c 19*91f16700Schasinglulu #define UART_BAUD_REG 0x10 20*91f16700Schasinglulu #define UART_POSSR_REG 0x14 21*91f16700Schasinglulu 22*91f16700Schasinglulu /* FIFO Control Register bits */ 23*91f16700Schasinglulu #define UARTFCR_FIFOMD_16450 (0 << 6) 24*91f16700Schasinglulu #define UARTFCR_FIFOMD_16550 (1 << 6) 25*91f16700Schasinglulu #define UARTFCR_RXTRIG_1 (0 << 6) 26*91f16700Schasinglulu #define UARTFCR_RXTRIG_4 (1 << 6) 27*91f16700Schasinglulu #define UARTFCR_RXTRIG_8 (2 << 6) 28*91f16700Schasinglulu #define UARTFCR_RXTRIG_16 (3 << 6) 29*91f16700Schasinglulu #define UARTFCR_TXTRIG_1 (0 << 4) 30*91f16700Schasinglulu #define UARTFCR_TXTRIG_4 (1 << 4) 31*91f16700Schasinglulu #define UARTFCR_TXTRIG_8 (2 << 4) 32*91f16700Schasinglulu #define UARTFCR_TXTRIG_16 (3 << 4) 33*91f16700Schasinglulu #define UARTFCR_DMAEN (1 << 3) /* Enable DMA mode */ 34*91f16700Schasinglulu #define UARTFCR_TXCLR (1 << 2) /* Clear contents of Tx FIFO */ 35*91f16700Schasinglulu #define UARTFCR_RXCLR (1 << 1) /* Clear contents of Rx FIFO */ 36*91f16700Schasinglulu #define UARTFCR_FIFOEN (1 << 0) /* Enable the Tx/Rx FIFO */ 37*91f16700Schasinglulu 38*91f16700Schasinglulu /* Line Control Register bits */ 39*91f16700Schasinglulu #define UARTLCR_DLAB (1 << 7) /* Divisor Latch Access */ 40*91f16700Schasinglulu #define UARTLCR_SETB (1 << 6) /* Set BREAK Condition */ 41*91f16700Schasinglulu #define UARTLCR_SETP (1 << 5) /* Set Parity to LCR[4] */ 42*91f16700Schasinglulu #define UARTLCR_EVEN (1 << 4) /* Even Parity Format */ 43*91f16700Schasinglulu #define UARTLCR_PAR (1 << 3) /* Parity */ 44*91f16700Schasinglulu #define UARTLCR_STOP (1 << 2) /* Stop Bit */ 45*91f16700Schasinglulu #define UARTLCR_WORDSZ_5 0 /* Word Length of 5 */ 46*91f16700Schasinglulu #define UARTLCR_WORDSZ_6 1 /* Word Length of 6 */ 47*91f16700Schasinglulu #define UARTLCR_WORDSZ_7 2 /* Word Length of 7 */ 48*91f16700Schasinglulu #define UARTLCR_WORDSZ_8 3 /* Word Length of 8 */ 49*91f16700Schasinglulu 50*91f16700Schasinglulu /* Line Status Register bits */ 51*91f16700Schasinglulu #define UARTLSR_TXFIFOFULL (1 << 11) /* Tx Fifo Full */ 52*91f16700Schasinglulu #define UARTLSR_TXEMPTY (1 << 6) /* Tx Empty */ 53*91f16700Schasinglulu #define UARTLSR_RXRDY (1 << 4) /* Rx Ready */ 54*91f16700Schasinglulu 55*91f16700Schasinglulu /* UART Control Register bits */ 56*91f16700Schasinglulu #define UART_CTRL_RXFIFO_RESET (1 << 14) 57*91f16700Schasinglulu #define UART_CTRL_TXFIFO_RESET (1 << 15) 58*91f16700Schasinglulu 59*91f16700Schasinglulu #ifndef __ASSEMBLER__ 60*91f16700Schasinglulu 61*91f16700Schasinglulu #include <stdint.h> 62*91f16700Schasinglulu 63*91f16700Schasinglulu /* 64*91f16700Schasinglulu * Initialize a new a3700 console instance and register it with the console 65*91f16700Schasinglulu * framework. The |console| pointer must point to storage that will be valid 66*91f16700Schasinglulu * for the lifetime of the console, such as a global or static local variable. 67*91f16700Schasinglulu * Its contents will be reinitialized from scratch. 68*91f16700Schasinglulu */ 69*91f16700Schasinglulu int console_a3700_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud, 70*91f16700Schasinglulu console_t *console); 71*91f16700Schasinglulu 72*91f16700Schasinglulu #endif /*__ASSEMBLER__*/ 73*91f16700Schasinglulu 74*91f16700Schasinglulu #endif /* A3700_CONSOLE_H */ 75