diff options
Diffstat (limited to 'arch/arm/mach-ks8695/include/mach/regs-uart.h')
| -rw-r--r-- | arch/arm/mach-ks8695/include/mach/regs-uart.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/arm/mach-ks8695/include/mach/regs-uart.h b/arch/arm/mach-ks8695/include/mach/regs-uart.h new file mode 100644 index 00000000000..8581fbc6245 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/regs-uart.h @@ -0,0 +1,92 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-uart.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - UART register and bit definitions. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef KS8695_UART_H +#define KS8695_UART_H + +#define KS8695_UART_OFFSET (0xF0000 + 0xE000) +#define KS8695_UART_VA (KS8695_IO_VA + KS8695_UART_OFFSET) +#define KS8695_UART_PA (KS8695_IO_PA + KS8695_UART_OFFSET) + + +/* + * UART registers + */ +#define KS8695_URRB (0x00) /* Receive Buffer Register */ +#define KS8695_URTH (0x04) /* Transmit Holding Register */ +#define KS8695_URFC (0x08) /* FIFO Control Register */ +#define KS8695_URLC (0x0C) /* Line Control Register */ +#define KS8695_URMC (0x10) /* Modem Control Register */ +#define KS8695_URLS (0x14) /* Line Status Register */ +#define KS8695_URMS (0x18) /* Modem Status Register */ +#define KS8695_URBD (0x1C) /* Baud Rate Divisor Register */ +#define KS8695_USR (0x20) /* Status Register */ + + +/* FIFO Control Register */ +#define URFC_URFRT (3 << 6) /* Receive FIFO Trigger Level */ +#define URFC_URFRT_1 (0 << 6) +#define URFC_URFRT_4 (1 << 6) +#define URFC_URFRT_8 (2 << 6) +#define URFC_URFRT_14 (3 << 6) +#define URFC_URTFR (1 << 2) /* Transmit FIFO Reset */ +#define URFC_URRFR (1 << 1) /* Receive FIFO Reset */ +#define URFC_URFE (1 << 0) /* FIFO Enable */ + +/* Line Control Register */ +#define URLC_URSBC (1 << 6) /* Set Break Condition */ +#define URLC_PARITY (7 << 3) /* Parity */ +#define URPE_NONE (0 << 3) +#define URPE_ODD (1 << 3) +#define URPE_EVEN (3 << 3) +#define URPE_MARK (5 << 3) +#define URPE_SPACE (7 << 3) +#define URLC_URSB (1 << 2) /* Stop Bits */ +#define URLC_URCL (3 << 0) /* Character Length */ +#define URCL_5 (0 << 0) +#define URCL_6 (1 << 0) +#define URCL_7 (2 << 0) +#define URCL_8 (3 << 0) + +/* Modem Control Register */ +#define URMC_URLB (1 << 4) /* Loop-back mode */ +#define URMC_UROUT2 (1 << 3) /* OUT2 signal */ +#define URMC_UROUT1 (1 << 2) /* OUT1 signal */ +#define URMC_URRTS (1 << 1) /* Request to Send */ +#define URMC_URDTR (1 << 0) /* Data Terminal Ready */ + +/* Line Status Register */ +#define URLS_URRFE (1 << 7) /* Receive FIFO Error */ +#define URLS_URTE (1 << 6) /* Transmit Empty */ +#define URLS_URTHRE (1 << 5) /* Transmit Holding Register Empty */ +#define URLS_URBI (1 << 4) /* Break Interrupt */ +#define URLS_URFE (1 << 3) /* Framing Error */ +#define URLS_URPE (1 << 2) /* Parity Error */ +#define URLS_URROE (1 << 1) /* Receive Overrun Error */ +#define URLS_URDR (1 << 0) /* Receive Data Ready */ + +/* Modem Status Register */ +#define URMS_URDCD (1 << 7) /* Data Carrier Detect */ +#define URMS_URRI (1 << 6) /* Ring Indicator */ +#define URMS_URDSR (1 << 5) /* Data Set Ready */ +#define URMS_URCTS (1 << 4) /* Clear to Send */ +#define URMS_URDDCD (1 << 3) /* Delta Data Carrier Detect */ +#define URMS_URTERI (1 << 2) /* Trailing Edge Ring Indicator */ +#define URMS_URDDST (1 << 1) /* Delta Data Set Ready */ +#define URMS_URDCTS (1 << 0) /* Delta Clear to Send */ + +/* Status Register */ +#define USR_UTI (1 << 0) /* Timeout Indication */ + + +#endif |