1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ASM_ARCH_REGS_UART_H 3 #define __ASM_ARCH_REGS_UART_H 4 5 /* 6 * UARTs 7 */ 8 9 /* Full Function UART (FFUART) */ 10 #define FFUART FFRBR 11 #define FFRBR __REG(0x40100000) /* Receive Buffer Register (read only) */ 12 #define FFTHR __REG(0x40100000) /* Transmit Holding Register (write only) */ 13 #define FFIER __REG(0x40100004) /* Interrupt Enable Register (read/write) */ 14 #define FFIIR __REG(0x40100008) /* Interrupt ID Register (read only) */ 15 #define FFFCR __REG(0x40100008) /* FIFO Control Register (write only) */ 16 #define FFLCR __REG(0x4010000C) /* Line Control Register (read/write) */ 17 #define FFMCR __REG(0x40100010) /* Modem Control Register (read/write) */ 18 #define FFLSR __REG(0x40100014) /* Line Status Register (read only) */ 19 #define FFMSR __REG(0x40100018) /* Modem Status Register (read only) */ 20 #define FFSPR __REG(0x4010001C) /* Scratch Pad Register (read/write) */ 21 #define FFISR __REG(0x40100020) /* Infrared Selection Register (read/write) */ 22 #define FFDLL __REG(0x40100000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */ 23 #define FFDLH __REG(0x40100004) /* Divisor Latch High Register (DLAB = 1) (read/write) */ 24 25 /* Bluetooth UART (BTUART) */ 26 #define BTUART BTRBR 27 #define BTRBR __REG(0x40200000) /* Receive Buffer Register (read only) */ 28 #define BTTHR __REG(0x40200000) /* Transmit Holding Register (write only) */ 29 #define BTIER __REG(0x40200004) /* Interrupt Enable Register (read/write) */ 30 #define BTIIR __REG(0x40200008) /* Interrupt ID Register (read only) */ 31 #define BTFCR __REG(0x40200008) /* FIFO Control Register (write only) */ 32 #define BTLCR __REG(0x4020000C) /* Line Control Register (read/write) */ 33 #define BTMCR __REG(0x40200010) /* Modem Control Register (read/write) */ 34 #define BTLSR __REG(0x40200014) /* Line Status Register (read only) */ 35 #define BTMSR __REG(0x40200018) /* Modem Status Register (read only) */ 36 #define BTSPR __REG(0x4020001C) /* Scratch Pad Register (read/write) */ 37 #define BTISR __REG(0x40200020) /* Infrared Selection Register (read/write) */ 38 #define BTDLL __REG(0x40200000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */ 39 #define BTDLH __REG(0x40200004) /* Divisor Latch High Register (DLAB = 1) (read/write) */ 40 41 /* Standard UART (STUART) */ 42 #define STUART STRBR 43 #define STRBR __REG(0x40700000) /* Receive Buffer Register (read only) */ 44 #define STTHR __REG(0x40700000) /* Transmit Holding Register (write only) */ 45 #define STIER __REG(0x40700004) /* Interrupt Enable Register (read/write) */ 46 #define STIIR __REG(0x40700008) /* Interrupt ID Register (read only) */ 47 #define STFCR __REG(0x40700008) /* FIFO Control Register (write only) */ 48 #define STLCR __REG(0x4070000C) /* Line Control Register (read/write) */ 49 #define STMCR __REG(0x40700010) /* Modem Control Register (read/write) */ 50 #define STLSR __REG(0x40700014) /* Line Status Register (read only) */ 51 #define STMSR __REG(0x40700018) /* Reserved */ 52 #define STSPR __REG(0x4070001C) /* Scratch Pad Register (read/write) */ 53 #define STISR __REG(0x40700020) /* Infrared Selection Register (read/write) */ 54 #define STDLL __REG(0x40700000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */ 55 #define STDLH __REG(0x40700004) /* Divisor Latch High Register (DLAB = 1) (read/write) */ 56 57 /* Hardware UART (HWUART) */ 58 #define HWUART HWRBR 59 #define HWRBR __REG(0x41600000) /* Receive Buffer Register (read only) */ 60 #define HWTHR __REG(0x41600000) /* Transmit Holding Register (write only) */ 61 #define HWIER __REG(0x41600004) /* Interrupt Enable Register (read/write) */ 62 #define HWIIR __REG(0x41600008) /* Interrupt ID Register (read only) */ 63 #define HWFCR __REG(0x41600008) /* FIFO Control Register (write only) */ 64 #define HWLCR __REG(0x4160000C) /* Line Control Register (read/write) */ 65 #define HWMCR __REG(0x41600010) /* Modem Control Register (read/write) */ 66 #define HWLSR __REG(0x41600014) /* Line Status Register (read only) */ 67 #define HWMSR __REG(0x41600018) /* Modem Status Register (read only) */ 68 #define HWSPR __REG(0x4160001C) /* Scratch Pad Register (read/write) */ 69 #define HWISR __REG(0x41600020) /* Infrared Selection Register (read/write) */ 70 #define HWFOR __REG(0x41600024) /* Receive FIFO Occupancy Register (read only) */ 71 #define HWABR __REG(0x41600028) /* Auto-Baud Control Register (read/write) */ 72 #define HWACR __REG(0x4160002C) /* Auto-Baud Count Register (read only) */ 73 #define HWDLL __REG(0x41600000) /* Divisor Latch Low Register (DLAB = 1) (read/write) */ 74 #define HWDLH __REG(0x41600004) /* Divisor Latch High Register (DLAB = 1) (read/write) */ 75 76 #define IER_DMAE (1 << 7) /* DMA Requests Enable */ 77 #define IER_UUE (1 << 6) /* UART Unit Enable */ 78 #define IER_NRZE (1 << 5) /* NRZ coding Enable */ 79 #define IER_RTIOE (1 << 4) /* Receiver Time Out Interrupt Enable */ 80 #define IER_MIE (1 << 3) /* Modem Interrupt Enable */ 81 #define IER_RLSE (1 << 2) /* Receiver Line Status Interrupt Enable */ 82 #define IER_TIE (1 << 1) /* Transmit Data request Interrupt Enable */ 83 #define IER_RAVIE (1 << 0) /* Receiver Data Available Interrupt Enable */ 84 85 #define IIR_FIFOES1 (1 << 7) /* FIFO Mode Enable Status */ 86 #define IIR_FIFOES0 (1 << 6) /* FIFO Mode Enable Status */ 87 #define IIR_TOD (1 << 3) /* Time Out Detected */ 88 #define IIR_IID2 (1 << 2) /* Interrupt Source Encoded */ 89 #define IIR_IID1 (1 << 1) /* Interrupt Source Encoded */ 90 #define IIR_IP (1 << 0) /* Interrupt Pending (active low) */ 91 92 #define FCR_ITL2 (1 << 7) /* Interrupt Trigger Level */ 93 #define FCR_ITL1 (1 << 6) /* Interrupt Trigger Level */ 94 #define FCR_RESETTF (1 << 2) /* Reset Transmitter FIFO */ 95 #define FCR_RESETRF (1 << 1) /* Reset Receiver FIFO */ 96 #define FCR_TRFIFOE (1 << 0) /* Transmit and Receive FIFO Enable */ 97 #define FCR_ITL_1 (0) 98 #define FCR_ITL_8 (FCR_ITL1) 99 #define FCR_ITL_16 (FCR_ITL2) 100 #define FCR_ITL_32 (FCR_ITL2|FCR_ITL1) 101 102 #define LCR_DLAB (1 << 7) /* Divisor Latch Access Bit */ 103 #define LCR_SB (1 << 6) /* Set Break */ 104 #define LCR_STKYP (1 << 5) /* Sticky Parity */ 105 #define LCR_EPS (1 << 4) /* Even Parity Select */ 106 #define LCR_PEN (1 << 3) /* Parity Enable */ 107 #define LCR_STB (1 << 2) /* Stop Bit */ 108 #define LCR_WLS1 (1 << 1) /* Word Length Select */ 109 #define LCR_WLS0 (1 << 0) /* Word Length Select */ 110 111 #define LSR_FIFOE (1 << 7) /* FIFO Error Status */ 112 #define LSR_TEMT (1 << 6) /* Transmitter Empty */ 113 #define LSR_TDRQ (1 << 5) /* Transmit Data Request */ 114 #define LSR_BI (1 << 4) /* Break Interrupt */ 115 #define LSR_FE (1 << 3) /* Framing Error */ 116 #define LSR_PE (1 << 2) /* Parity Error */ 117 #define LSR_OE (1 << 1) /* Overrun Error */ 118 #define LSR_DR (1 << 0) /* Data Ready */ 119 120 #define MCR_LOOP (1 << 4) 121 #define MCR_OUT2 (1 << 3) /* force MSR_DCD in loopback mode */ 122 #define MCR_OUT1 (1 << 2) /* force MSR_RI in loopback mode */ 123 #define MCR_RTS (1 << 1) /* Request to Send */ 124 #define MCR_DTR (1 << 0) /* Data Terminal Ready */ 125 126 #define MSR_DCD (1 << 7) /* Data Carrier Detect */ 127 #define MSR_RI (1 << 6) /* Ring Indicator */ 128 #define MSR_DSR (1 << 5) /* Data Set Ready */ 129 #define MSR_CTS (1 << 4) /* Clear To Send */ 130 #define MSR_DDCD (1 << 3) /* Delta Data Carrier Detect */ 131 #define MSR_TERI (1 << 2) /* Trailing Edge Ring Indicator */ 132 #define MSR_DDSR (1 << 1) /* Delta Data Set Ready */ 133 #define MSR_DCTS (1 << 0) /* Delta Clear To Send */ 134 135 /* 136 * IrSR (Infrared Selection Register) 137 */ 138 #define STISR_RXPL (1 << 4) /* Receive Data Polarity */ 139 #define STISR_TXPL (1 << 3) /* Transmit Data Polarity */ 140 #define STISR_XMODE (1 << 2) /* Transmit Pulse Width Select */ 141 #define STISR_RCVEIR (1 << 1) /* Receiver SIR Enable */ 142 #define STISR_XMITIR (1 << 0) /* Transmitter SIR Enable */ 143 144 #endif /* __ASM_ARCH_REGS_UART_H */ 145
