1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Atheros AR933X UART defines 4 * 5 * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org> 6 */ 7 8 #ifndef __AR933X_UART_H 9 #define __AR933X_UART_H 10 11 #define AR933X_UART_REGS_SIZE 20 12 #define AR933X_UART_FIFO_SIZE 16 13 14 #define AR933X_UART_DATA_REG 0x00 15 #define AR933X_UART_CS_REG 0x04 16 #define AR933X_UART_CLOCK_REG 0x08 17 #define AR933X_UART_INT_REG 0x0c 18 #define AR933X_UART_INT_EN_REG 0x10 19 20 #define AR933X_UART_DATA_TX_RX_MASK 0xff 21 #define AR933X_UART_DATA_RX_CSR BIT(8) 22 #define AR933X_UART_DATA_TX_CSR BIT(9) 23 24 #define AR933X_UART_CS_PARITY_S 0 25 #define AR933X_UART_CS_PARITY_M 0x3 26 #define AR933X_UART_CS_PARITY_NONE 0 27 #define AR933X_UART_CS_PARITY_ODD 2 28 #define AR933X_UART_CS_PARITY_EVEN 3 29 #define AR933X_UART_CS_IF_MODE_S 2 30 #define AR933X_UART_CS_IF_MODE_M 0x3 31 #define AR933X_UART_CS_IF_MODE_NONE 0 32 #define AR933X_UART_CS_IF_MODE_DTE 1 33 #define AR933X_UART_CS_IF_MODE_DCE 2 34 #define AR933X_UART_CS_FLOW_CTRL_S 4 35 #define AR933X_UART_CS_FLOW_CTRL_M 0x3 36 #define AR933X_UART_CS_DMA_EN BIT(6) 37 #define AR933X_UART_CS_TX_READY_ORIDE BIT(7) 38 #define AR933X_UART_CS_RX_READY_ORIDE BIT(8) 39 #define AR933X_UART_CS_TX_READY BIT(9) 40 #define AR933X_UART_CS_RX_BREAK BIT(10) 41 #define AR933X_UART_CS_TX_BREAK BIT(11) 42 #define AR933X_UART_CS_HOST_INT BIT(12) 43 #define AR933X_UART_CS_HOST_INT_EN BIT(13) 44 #define AR933X_UART_CS_TX_BUSY BIT(14) 45 #define AR933X_UART_CS_RX_BUSY BIT(15) 46 47 #define AR933X_UART_CLOCK_STEP_M 0xffff 48 #define AR933X_UART_CLOCK_SCALE_M 0xfff 49 #define AR933X_UART_CLOCK_SCALE_S 16 50 #define AR933X_UART_CLOCK_STEP_M 0xffff 51 52 #define AR933X_UART_INT_RX_VALID BIT(0) 53 #define AR933X_UART_INT_TX_READY BIT(1) 54 #define AR933X_UART_INT_RX_FRAMING_ERR BIT(2) 55 #define AR933X_UART_INT_RX_OFLOW_ERR BIT(3) 56 #define AR933X_UART_INT_TX_OFLOW_ERR BIT(4) 57 #define AR933X_UART_INT_RX_PARITY_ERR BIT(5) 58 #define AR933X_UART_INT_RX_BREAK_ON BIT(6) 59 #define AR933X_UART_INT_RX_BREAK_OFF BIT(7) 60 #define AR933X_UART_INT_RX_FULL BIT(8) 61 #define AR933X_UART_INT_TX_EMPTY BIT(9) 62 #define AR933X_UART_INT_ALLINTS 0x3ff 63 64 #endif /* __AR933X_UART_H */ 65