mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-17 10:04:26 +00:00
c3cf06f1a3
All identifiers, regardless of use, that start with two underscores are reserved. This means they can't be used in header guards. The style that this project is now to use the full name of the file in capital letters followed by 'H'. For example, for a file called "uart_example.h", the header guard is UART_EXAMPLE_H. The exceptions are files that are imported from other projects: - CryptoCell driver - dt-bindings folders - zlib headers Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
106 lines
3.8 KiB
C
106 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef PL011_H
|
|
#define PL011_H
|
|
|
|
#include <console.h>
|
|
|
|
/* PL011 Registers */
|
|
#define UARTDR 0x000
|
|
#define UARTRSR 0x004
|
|
#define UARTECR 0x004
|
|
#define UARTFR 0x018
|
|
#define UARTIMSC 0x038
|
|
#define UARTRIS 0x03C
|
|
#define UARTICR 0x044
|
|
|
|
/* PL011 registers (out of the SBSA specification) */
|
|
#if !PL011_GENERIC_UART
|
|
#define UARTILPR 0x020
|
|
#define UARTIBRD 0x024
|
|
#define UARTFBRD 0x028
|
|
#define UARTLCR_H 0x02C
|
|
#define UARTCR 0x030
|
|
#define UARTIFLS 0x034
|
|
#define UARTMIS 0x040
|
|
#define UARTDMACR 0x048
|
|
#endif /* !PL011_GENERIC_UART */
|
|
|
|
/* Data status bits */
|
|
#define UART_DATA_ERROR_MASK 0x0F00
|
|
|
|
/* Status reg bits */
|
|
#define UART_STATUS_ERROR_MASK 0x0F
|
|
|
|
/* Flag reg bits */
|
|
#define PL011_UARTFR_RI (1 << 8) /* Ring indicator */
|
|
#define PL011_UARTFR_TXFE (1 << 7) /* Transmit FIFO empty */
|
|
#define PL011_UARTFR_RXFF (1 << 6) /* Receive FIFO full */
|
|
#define PL011_UARTFR_TXFF (1 << 5) /* Transmit FIFO full */
|
|
#define PL011_UARTFR_RXFE (1 << 4) /* Receive FIFO empty */
|
|
#define PL011_UARTFR_BUSY (1 << 3) /* UART busy */
|
|
#define PL011_UARTFR_DCD (1 << 2) /* Data carrier detect */
|
|
#define PL011_UARTFR_DSR (1 << 1) /* Data set ready */
|
|
#define PL011_UARTFR_CTS (1 << 0) /* Clear to send */
|
|
|
|
#define PL011_UARTFR_TXFF_BIT 5 /* Transmit FIFO full bit in UARTFR register */
|
|
#define PL011_UARTFR_RXFE_BIT 4 /* Receive FIFO empty bit in UARTFR register */
|
|
#define PL011_UARTFR_BUSY_BIT 3 /* UART busy bit in UARTFR register */
|
|
|
|
/* Control reg bits */
|
|
#if !PL011_GENERIC_UART
|
|
#define PL011_UARTCR_CTSEN (1 << 15) /* CTS hardware flow control enable */
|
|
#define PL011_UARTCR_RTSEN (1 << 14) /* RTS hardware flow control enable */
|
|
#define PL011_UARTCR_RTS (1 << 11) /* Request to send */
|
|
#define PL011_UARTCR_DTR (1 << 10) /* Data transmit ready. */
|
|
#define PL011_UARTCR_RXE (1 << 9) /* Receive enable */
|
|
#define PL011_UARTCR_TXE (1 << 8) /* Transmit enable */
|
|
#define PL011_UARTCR_LBE (1 << 7) /* Loopback enable */
|
|
#define PL011_UARTCR_UARTEN (1 << 0) /* UART Enable */
|
|
|
|
#if !defined(PL011_LINE_CONTROL)
|
|
/* FIFO Enabled / No Parity / 8 Data bit / One Stop Bit */
|
|
#define PL011_LINE_CONTROL (PL011_UARTLCR_H_FEN | PL011_UARTLCR_H_WLEN_8)
|
|
#endif
|
|
|
|
/* Line Control Register Bits */
|
|
#define PL011_UARTLCR_H_SPS (1 << 7) /* Stick parity select */
|
|
#define PL011_UARTLCR_H_WLEN_8 (3 << 5)
|
|
#define PL011_UARTLCR_H_WLEN_7 (2 << 5)
|
|
#define PL011_UARTLCR_H_WLEN_6 (1 << 5)
|
|
#define PL011_UARTLCR_H_WLEN_5 (0 << 5)
|
|
#define PL011_UARTLCR_H_FEN (1 << 4) /* FIFOs Enable */
|
|
#define PL011_UARTLCR_H_STP2 (1 << 3) /* Two stop bits select */
|
|
#define PL011_UARTLCR_H_EPS (1 << 2) /* Even parity select */
|
|
#define PL011_UARTLCR_H_PEN (1 << 1) /* Parity Enable */
|
|
#define PL011_UARTLCR_H_BRK (1 << 0) /* Send break */
|
|
|
|
#endif /* !PL011_GENERIC_UART */
|
|
|
|
#define CONSOLE_T_PL011_BASE CONSOLE_T_DRVDATA
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <stdint.h>
|
|
|
|
typedef struct {
|
|
console_t console;
|
|
uintptr_t base;
|
|
} console_pl011_t;
|
|
|
|
/*
|
|
* Initialize a new PL011 console instance and register it with the console
|
|
* framework. The |console| pointer must point to storage that will be valid
|
|
* for the lifetime of the console, such as a global or static local variable.
|
|
* Its contents will be reinitialized from scratch.
|
|
*/
|
|
int console_pl011_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud,
|
|
console_pl011_t *console);
|
|
|
|
#endif /*__ASSEMBLY__*/
|
|
|
|
#endif /* PL011_H */
|