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/** @file
Copyright (c) 2011-2016, ARM Limited. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef __PL011_UART_H__
#define __PL011_UART_H__
#define PL011_VARIANT_ZTE 1
// PL011 Registers
#if FixedPcdGet8 (PL011UartRegOffsetVariant) == PL011_VARIANT_ZTE
#define UARTDR 0x004
#define UARTRSR 0x010
#define UARTECR 0x010
#define UARTFR 0x014
#define UARTIBRD 0x024
#define UARTFBRD 0x028
#define UARTLCR_H 0x030
#define UARTCR 0x034
#define UARTIFLS 0x038
#define UARTIMSC 0x040
#define UARTRIS 0x044
#define UARTMIS 0x048
#define UARTICR 0x04c
#define UARTDMACR 0x050
#else
#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
#endif
#define UARTPID0 0xFE0
#define UARTPID1 0xFE4
#define UARTPID2 0xFE8
#define UARTPID3 0xFEC
// Data status bits
#define UART_DATA_ERROR_MASK 0x0F00
// Status reg bits
#define UART_STATUS_ERROR_MASK 0x0F
// Flag reg bits
#if FixedPcdGet8 (PL011UartRegOffsetVariant) == PL011_VARIANT_ZTE
#define PL011_UARTFR_RI (1 << 0) // 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 << 8) // UART busy
#define PL011_UARTFR_DCD (1 << 2) // Data carrier detect
#define PL011_UARTFR_DSR (1 << 3) // Data set ready
#define PL011_UARTFR_CTS (1 << 1) // Clear to send
#else
#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
#endif
// Flag reg bits - alternative names
#define UART_TX_EMPTY_FLAG_MASK PL011_UARTFR_TXFE
#define UART_RX_FULL_FLAG_MASK PL011_UARTFR_RXFF
#define UART_TX_FULL_FLAG_MASK PL011_UARTFR_TXFF
#define UART_RX_EMPTY_FLAG_MASK PL011_UARTFR_RXFE
#define UART_BUSY_FLAG_MASK PL011_UARTFR_BUSY
// Control reg bits
#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
// 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
#define PL011_UARTPID2_VER(X) (((X) >> 4) & 0xF)
#define PL011_VER_R1P4 0x2
#endif
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