diff options
Diffstat (limited to 'drivers/serial_pl011.h')
| -rw-r--r-- | drivers/serial_pl011.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/drivers/serial_pl011.h b/drivers/serial_pl011.h new file mode 100644 index 0000000..2117848 --- /dev/null +++ b/drivers/serial_pl011.h @@ -0,0 +1,137 @@ +/* + * (C) Copyright 2003, 2004 + * ARM Ltd. + * Philippe Robin, <philippe.robin@arm.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * ARM PrimeCell UART's (PL010 & PL011) + * ------------------------------------ + * + * Definitions common to both PL010 & PL011 + * + */ +#define UART_PL01x_DR 0x00 /* Data read or written from the interface. */ +#define UART_PL01x_RSR 0x04 /* Receive status register (Read). */ +#define UART_PL01x_ECR 0x04 /* Error clear register (Write). */ +#define UART_PL01x_FR 0x18 /* Flag register (Read only). */ + +#define UART_PL01x_RSR_OE 0x08 +#define UART_PL01x_RSR_BE 0x04 +#define UART_PL01x_RSR_PE 0x02 +#define UART_PL01x_RSR_FE 0x01 + +#define UART_PL01x_FR_TXFE 0x80 +#define UART_PL01x_FR_RXFF 0x40 +#define UART_PL01x_FR_TXFF 0x20 +#define UART_PL01x_FR_RXFE 0x10 +#define UART_PL01x_FR_BUSY 0x08 +#define UART_PL01x_FR_TMSK (UART_PL01x_FR_TXFF + UART_PL01x_FR_BUSY) + +/* + * PL010 definitions + * + */ +#define UART_PL010_LCRH 0x08 /* Line control register, high byte. */ +#define UART_PL010_LCRM 0x0C /* Line control register, middle byte. */ +#define UART_PL010_LCRL 0x10 /* Line control register, low byte. */ +#define UART_PL010_CR 0x14 /* Control register. */ +#define UART_PL010_IIR 0x1C /* Interrupt indentification register (Read). */ +#define UART_PL010_ICR 0x1C /* Interrupt clear register (Write). */ +#define UART_PL010_ILPR 0x20 /* IrDA low power counter register. */ + +#define UART_PL010_CR_LPE (1 << 7) +#define UART_PL010_CR_RTIE (1 << 6) +#define UART_PL010_CR_TIE (1 << 5) +#define UART_PL010_CR_RIE (1 << 4) +#define UART_PL010_CR_MSIE (1 << 3) +#define UART_PL010_CR_IIRLP (1 << 2) +#define UART_PL010_CR_SIREN (1 << 1) +#define UART_PL010_CR_UARTEN (1 << 0) + +#define UART_PL010_LCRH_WLEN_8 (3 << 5) +#define UART_PL010_LCRH_WLEN_7 (2 << 5) +#define UART_PL010_LCRH_WLEN_6 (1 << 5) +#define UART_PL010_LCRH_WLEN_5 (0 << 5) +#define UART_PL010_LCRH_FEN (1 << 4) +#define UART_PL010_LCRH_STP2 (1 << 3) +#define UART_PL010_LCRH_EPS (1 << 2) +#define UART_PL010_LCRH_PEN (1 << 1) +#define UART_PL010_LCRH_BRK (1 << 0) + + +#define UART_PL010_BAUD_460800 1 +#define UART_PL010_BAUD_230400 3 +#define UART_PL010_BAUD_115200 7 +#define UART_PL010_BAUD_57600 15 +#define UART_PL010_BAUD_38400 23 +#define UART_PL010_BAUD_19200 47 +#define UART_PL010_BAUD_14400 63 +#define UART_PL010_BAUD_9600 95 +#define UART_PL010_BAUD_4800 191 +#define UART_PL010_BAUD_2400 383 +#define UART_PL010_BAUD_1200 767 +/* + * PL011 definitions + * + */ +#define UART_PL011_IBRD 0x24 +#define UART_PL011_FBRD 0x28 +#define UART_PL011_LCRH 0x2C +#define UART_PL011_CR 0x30 +#define UART_PL011_IMSC 0x38 +#define UART_PL011_PERIPH_ID0 0xFE0 + +#define UART_PL011_LCRH_SPS (1 << 7) +#define UART_PL011_LCRH_WLEN_8 (3 << 5) +#define UART_PL011_LCRH_WLEN_7 (2 << 5) +#define UART_PL011_LCRH_WLEN_6 (1 << 5) +#define UART_PL011_LCRH_WLEN_5 (0 << 5) +#define UART_PL011_LCRH_FEN (1 << 4) +#define UART_PL011_LCRH_STP2 (1 << 3) +#define UART_PL011_LCRH_EPS (1 << 2) +#define UART_PL011_LCRH_PEN (1 << 1) +#define UART_PL011_LCRH_BRK (1 << 0) + +#define UART_PL011_CR_CTSEN (1 << 15) +#define UART_PL011_CR_RTSEN (1 << 14) +#define UART_PL011_CR_OUT2 (1 << 13) +#define UART_PL011_CR_OUT1 (1 << 12) +#define UART_PL011_CR_RTS (1 << 11) +#define UART_PL011_CR_DTR (1 << 10) +#define UART_PL011_CR_RXE (1 << 9) +#define UART_PL011_CR_TXE (1 << 8) +#define UART_PL011_CR_LPE (1 << 7) +#define UART_PL011_CR_IIRLP (1 << 2) +#define UART_PL011_CR_SIREN (1 << 1) +#define UART_PL011_CR_UARTEN (1 << 0) + +#define UART_PL011_IMSC_OEIM (1 << 10) +#define UART_PL011_IMSC_BEIM (1 << 9) +#define UART_PL011_IMSC_PEIM (1 << 8) +#define UART_PL011_IMSC_FEIM (1 << 7) +#define UART_PL011_IMSC_RTIM (1 << 6) +#define UART_PL011_IMSC_TXIM (1 << 5) +#define UART_PL011_IMSC_RXIM (1 << 4) +#define UART_PL011_IMSC_DSRMIM (1 << 3) +#define UART_PL011_IMSC_DCDMIM (1 << 2) +#define UART_PL011_IMSC_CTSMIM (1 << 1) +#define UART_PL011_IMSC_RIMIM (1 << 0) |