ar933x_uart.h

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/*
 *  Atheros AR933X UART defines
 *
 *  Copyright (C) 2011 Gabor Juhos <[email protected]>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License version 2 as published
 *  by the Free Software Foundation.
 */

#ifndef __AR933X_UART_H
#define __AR933X_UART_H

#define AR933X_UART_REGS_SIZE       20
#define AR933X_UART_FIFO_SIZE       16

#define AR933X_UART_DATA_REG        0x00
#define AR933X_UART_CS_REG      0x04
#define AR933X_UART_CLOCK_REG       0x08
#define AR933X_UART_INT_REG     0x0c
#define AR933X_UART_INT_EN_REG      0x10

#define AR933X_UART_DATA_TX_RX_MASK 0xff
#define AR933X_UART_DATA_RX_CSR     BIT(8)
#define AR933X_UART_DATA_TX_CSR     BIT(9)

#define AR933X_UART_CS_PARITY_S     0
#define AR933X_UART_CS_PARITY_M     0x3
#define   AR933X_UART_CS_PARITY_NONE    0
#define   AR933X_UART_CS_PARITY_ODD 1
#define   AR933X_UART_CS_PARITY_EVEN    2
#define AR933X_UART_CS_IF_MODE_S    2
#define AR933X_UART_CS_IF_MODE_M    0x3
#define   AR933X_UART_CS_IF_MODE_NONE   0
#define   AR933X_UART_CS_IF_MODE_DTE    1
#define   AR933X_UART_CS_IF_MODE_DCE    2
#define AR933X_UART_CS_FLOW_CTRL_S  4
#define AR933X_UART_CS_FLOW_CTRL_M  0x3
#define AR933X_UART_CS_DMA_EN       BIT(6)
#define AR933X_UART_CS_TX_READY_ORIDE   BIT(7)
#define AR933X_UART_CS_RX_READY_ORIDE   BIT(8)
#define AR933X_UART_CS_TX_READY     BIT(9)
#define AR933X_UART_CS_RX_BREAK     BIT(10)
#define AR933X_UART_CS_TX_BREAK     BIT(11)
#define AR933X_UART_CS_HOST_INT     BIT(12)
#define AR933X_UART_CS_HOST_INT_EN  BIT(13)
#define AR933X_UART_CS_TX_BUSY      BIT(14)
#define AR933X_UART_CS_RX_BUSY      BIT(15)

#define AR933X_UART_CLOCK_STEP_M    0xffff
#define AR933X_UART_CLOCK_SCALE_M   0xfff
#define AR933X_UART_CLOCK_SCALE_S   16
#define AR933X_UART_CLOCK_STEP_M    0xffff

#define AR933X_UART_INT_RX_VALID    BIT(0)
#define AR933X_UART_INT_TX_READY    BIT(1)
#define AR933X_UART_INT_RX_FRAMING_ERR  BIT(2)
#define AR933X_UART_INT_RX_OFLOW_ERR    BIT(3)
#define AR933X_UART_INT_TX_OFLOW_ERR    BIT(4)
#define AR933X_UART_INT_RX_PARITY_ERR   BIT(5)
#define AR933X_UART_INT_RX_BREAK_ON BIT(6)
#define AR933X_UART_INT_RX_BREAK_OFF    BIT(7)
#define AR933X_UART_INT_RX_FULL     BIT(8)
#define AR933X_UART_INT_TX_EMPTY    BIT(9)
#define AR933X_UART_INT_ALLINTS     0x3ff

#endif /* __AR933X_UART_H */