1/* SPDX-License-Identifier: GPL-2.0+ */ 2/* 3 * (C) Copyright 2003, 2004 4 * ARM Ltd. 5 * Philippe Robin, <philippe.robin@arm.com> 6 */ 7 8/* 9 * ARM PrimeCell UART's (PL010 & PL011) 10 * ------------------------------------ 11 * 12 * Definitions common to both PL010 & PL011 13 * 14 */ 15 16#ifndef __ASSEMBLY__ 17/* 18 * We can use a combined structure for PL010 and PL011, because they overlap 19 * only in common registers. 20 */ 21struct pl01x_regs { 22 u32 dr; /* 0x00 Data register */ 23 u32 ecr; /* 0x04 Error clear register (Write) */ 24 u32 pl010_lcrh; /* 0x08 Line control register, high byte */ 25 u32 pl010_lcrm; /* 0x0C Line control register, middle byte */ 26 u32 pl010_lcrl; /* 0x10 Line control register, low byte */ 27 u32 pl010_cr; /* 0x14 Control register */ 28 u32 fr; /* 0x18 Flag register (Read only) */ 29#ifdef CONFIG_PL011_SERIAL_RLCR 30 u32 pl011_rlcr; /* 0x1c Receive line control register */ 31#else 32 u32 reserved; 33#endif 34 u32 ilpr; /* 0x20 IrDA low-power counter register */ 35 u32 pl011_ibrd; /* 0x24 Integer baud rate register */ 36 u32 pl011_fbrd; /* 0x28 Fractional baud rate register */ 37 u32 pl011_lcrh; /* 0x2C Line control register */ 38 u32 pl011_cr; /* 0x30 Control register */ 39}; 40 41#ifdef CONFIG_DM_SERIAL 42 43int pl01x_serial_ofdata_to_platdata(struct udevice *dev); 44int pl01x_serial_probe(struct udevice *dev); 45 46/* Needed for external pl01x_serial_ops drivers */ 47int pl01x_serial_putc(struct udevice *dev, const char ch); 48int pl01x_serial_pending(struct udevice *dev, bool input); 49int pl01x_serial_getc(struct udevice *dev); 50int pl01x_serial_setbrg(struct udevice *dev, int baudrate); 51 52struct pl01x_priv { 53 struct pl01x_regs *regs; 54 enum pl01x_type type; 55}; 56 57#endif /* CONFIG_DM_SERIAL */ 58#endif /* !__ASSEMBLY__ */ 59 60#define UART_PL01x_RSR_OE 0x08 61#define UART_PL01x_RSR_BE 0x04 62#define UART_PL01x_RSR_PE 0x02 63#define UART_PL01x_RSR_FE 0x01 64 65#define UART_PL01x_FR_TXFE 0x80 66#define UART_PL01x_FR_RXFF 0x40 67#define UART_PL01x_FR_TXFF 0x20 68#define UART_PL01x_FR_RXFE 0x10 69#define UART_PL01x_FR_BUSY 0x08 70#define UART_PL01x_FR_TMSK (UART_PL01x_FR_TXFF + UART_PL01x_FR_BUSY) 71 72/* 73 * PL010 definitions 74 * 75 */ 76#define UART_PL010_CR_LPE (1 << 7) 77#define UART_PL010_CR_RTIE (1 << 6) 78#define UART_PL010_CR_TIE (1 << 5) 79#define UART_PL010_CR_RIE (1 << 4) 80#define UART_PL010_CR_MSIE (1 << 3) 81#define UART_PL010_CR_IIRLP (1 << 2) 82#define UART_PL010_CR_SIREN (1 << 1) 83#define UART_PL010_CR_UARTEN (1 << 0) 84 85#define UART_PL010_LCRH_WLEN_8 (3 << 5) 86#define UART_PL010_LCRH_WLEN_7 (2 << 5) 87#define UART_PL010_LCRH_WLEN_6 (1 << 5) 88#define UART_PL010_LCRH_WLEN_5 (0 << 5) 89#define UART_PL010_LCRH_FEN (1 << 4) 90#define UART_PL010_LCRH_STP2 (1 << 3) 91#define UART_PL010_LCRH_EPS (1 << 2) 92#define UART_PL010_LCRH_PEN (1 << 1) 93#define UART_PL010_LCRH_BRK (1 << 0) 94 95 96#define UART_PL010_BAUD_460800 1 97#define UART_PL010_BAUD_230400 3 98#define UART_PL010_BAUD_115200 7 99#define UART_PL010_BAUD_57600 15 100#define UART_PL010_BAUD_38400 23 101#define UART_PL010_BAUD_19200 47 102#define UART_PL010_BAUD_14400 63 103#define UART_PL010_BAUD_9600 95 104#define UART_PL010_BAUD_4800 191 105#define UART_PL010_BAUD_2400 383 106#define UART_PL010_BAUD_1200 767 107/* 108 * PL011 definitions 109 * 110 */ 111#define UART_PL011_LCRH_SPS (1 << 7) 112#define UART_PL011_LCRH_WLEN_8 (3 << 5) 113#define UART_PL011_LCRH_WLEN_7 (2 << 5) 114#define UART_PL011_LCRH_WLEN_6 (1 << 5) 115#define UART_PL011_LCRH_WLEN_5 (0 << 5) 116#define UART_PL011_LCRH_FEN (1 << 4) 117#define UART_PL011_LCRH_STP2 (1 << 3) 118#define UART_PL011_LCRH_EPS (1 << 2) 119#define UART_PL011_LCRH_PEN (1 << 1) 120#define UART_PL011_LCRH_BRK (1 << 0) 121 122#define UART_PL011_CR_CTSEN (1 << 15) 123#define UART_PL011_CR_RTSEN (1 << 14) 124#define UART_PL011_CR_OUT2 (1 << 13) 125#define UART_PL011_CR_OUT1 (1 << 12) 126#define UART_PL011_CR_RTS (1 << 11) 127#define UART_PL011_CR_DTR (1 << 10) 128#define UART_PL011_CR_RXE (1 << 9) 129#define UART_PL011_CR_TXE (1 << 8) 130#define UART_PL011_CR_LPE (1 << 7) 131#define UART_PL011_CR_IIRLP (1 << 2) 132#define UART_PL011_CR_SIREN (1 << 1) 133#define UART_PL011_CR_UARTEN (1 << 0) 134 135#define UART_PL011_IMSC_OEIM (1 << 10) 136#define UART_PL011_IMSC_BEIM (1 << 9) 137#define UART_PL011_IMSC_PEIM (1 << 8) 138#define UART_PL011_IMSC_FEIM (1 << 7) 139#define UART_PL011_IMSC_RTIM (1 << 6) 140#define UART_PL011_IMSC_TXIM (1 << 5) 141#define UART_PL011_IMSC_RXIM (1 << 4) 142#define UART_PL011_IMSC_DSRMIM (1 << 3) 143#define UART_PL011_IMSC_DCDMIM (1 << 2) 144#define UART_PL011_IMSC_CTSMIM (1 << 1) 145#define UART_PL011_IMSC_RIMIM (1 << 0) 146