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 */ 21 struct 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 43 int pl01x_serial_ofdata_to_platdata(struct udevice *dev); 44 int pl01x_serial_probe(struct udevice *dev); 45 46 /* Needed for external pl01x_serial_ops drivers */ 47 int pl01x_serial_putc(struct udevice *dev, const char ch); 48 int pl01x_serial_pending(struct udevice *dev, bool input); 49 int pl01x_serial_getc(struct udevice *dev); 50 int pl01x_serial_setbrg(struct udevice *dev, int baudrate); 51 52 struct 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