diff options
Diffstat (limited to 'ArmPlatformPkg/Include/Drivers/PL011Uart.h')
-rw-r--r-- | ArmPlatformPkg/Include/Drivers/PL011Uart.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/ArmPlatformPkg/Include/Drivers/PL011Uart.h b/ArmPlatformPkg/Include/Drivers/PL011Uart.h new file mode 100644 index 0000000000..237dc15c28 --- /dev/null +++ b/ArmPlatformPkg/Include/Drivers/PL011Uart.h @@ -0,0 +1,63 @@ +/** @file +* +* Copyright (c) 2011, ARM Limited. All rights reserved. +* +* This program and the accompanying materials +* are licensed and made available under the terms and conditions of the BSD License +* which accompanies this distribution. The full text of the license may be found at +* http://opensource.org/licenses/bsd-license.php +* +* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +* +**/ + +#ifndef __PL011_UART_H__ +#define __PL011_UART_H__ + +#define SERIAL_PORT_MAX_TIMEOUT 100000000 // 100 seconds + +// PL011 Registers +#define UARTDR 0x000 +#define UARTRSR 0x004 +#define UARTECR 0x004 +#define UARTFR 0x018 +#define UARTILPR 0x020 +#define UARTIBRD 0x024 +#define UARTFBRD 0x028 +#define UARTLCR_H 0x02C +#define UARTCR 0x030 +#define UARTIFLS 0x034 +#define UARTIMSC 0x038 +#define UARTRIS 0x03C +#define UARTMIS 0x040 +#define UARTICR 0x044 +#define UARTDMACR 0x048 + +#define UART_115200_IDIV 13 // Integer Part +#define UART_115200_FDIV 1 // Fractional Part +#define UART_38400_IDIV 39 +#define UART_38400_FDIV 5 +#define UART_19200_IDIV 12 +#define UART_19200_FDIV 37 + +// data status bits +#define UART_DATA_ERROR_MASK 0x0F00 + +// status reg bits +#define UART_STATUS_ERROR_MASK 0x0F + +// flag reg bits +#define UART_TX_EMPTY_FLAG_MASK 0x80 +#define UART_RX_FULL_FLAG_MASK 0x40 +#define UART_TX_FULL_FLAG_MASK 0x20 +#define UART_RX_EMPTY_FLAG_MASK 0x10 +#define UART_BUSY_FLAG_MASK 0x08 + +// control reg bits +#define UART_CTSEN_CONTROL_MASK 0x8000 +#define UART_RTSEN_CONTROL_MASK 0x4000 +#define UART_RTS_CONTROL_MASK 0x0800 +#define UART_DTR_CONTROL_MASK 0x0400 + +#endif |