--- /dev/null
+/*
+ * m32r_sio_reg.h
+ *
+ * Copyright (C) 1992, 1994 by Theodore Ts'o.
+ * Copyright (C) 2004 Hirokazu Takata <takata at linux-m32r.org>
+ *
+ * Redistribution of this file is permitted under the terms of the GNU
+ * Public License (GPL)
+ *
+ * These are the UART port assignments, expressed as offsets from the base
+ * register. These assignments should hold for any serial port based on
+ * a 8250, 16450, or 16550(A).
+ */
+
+#ifndef _M32R_SIO_REG_H
+#define _M32R_SIO_REG_H
+
+#include <linux/config.h>
+
+#ifdef CONFIG_SERIAL_M32R_PLDSIO
+
+#define SIOCR 0x000
+#define SIOMOD0 0x002
+#define SIOMOD1 0x004
+#define SIOSTS 0x006
+#define SIOTRCR 0x008
+#define SIOBAUR 0x00a
+// #define SIORBAUR 0x018
+#define SIOTXB 0x00c
+#define SIORXB 0x00e
+
+#define UART_RX ((unsigned long) PLD_ESIO0RXB)
+ /* In: Receive buffer (DLAB=0) */
+#define UART_TX ((unsigned long) PLD_ESIO0TXB)
+ /* Out: Transmit buffer (DLAB=0) */
+#define UART_DLL 0 /* Out: Divisor Latch Low (DLAB=1) */
+#define UART_TRG 0 /* (LCR=BF) FCTR bit 7 selects Rx or Tx
+ * In: Fifo count
+ * Out: Fifo custom trigger levels
+ * XR16C85x only */
+
+#define UART_DLM 0 /* Out: Divisor Latch High (DLAB=1) */
+#define UART_IER ((unsigned long) PLD_ESIO0INTCR)
+ /* Out: Interrupt Enable Register */
+#define UART_FCTR 0 /* (LCR=BF) Feature Control Register
+ * XR16C85x only */
+
+#define UART_IIR 0 /* In: Interrupt ID Register */
+#define UART_FCR 0 /* Out: FIFO Control Register */
+#define UART_EFR 0 /* I/O: Extended Features Register */
+ /* (DLAB=1, 16C660 only) */
+
+#define UART_LCR 0 /* Out: Line Control Register */
+#define UART_MCR 0 /* Out: Modem Control Register */
+#define UART_LSR ((unsigned long) PLD_ESIO0STS)
+ /* In: Line Status Register */
+#define UART_MSR 0 /* In: Modem Status Register */
+#define UART_SCR 0 /* I/O: Scratch Register */
+#define UART_EMSR 0 /* (LCR=BF) Extended Mode Select Register
+ * FCTR bit 6 selects SCR or EMSR
+ * XR16c85x only */
+
+#else /* not CONFIG_SERIAL_M32R_PLDSIO */
+
+#define SIOCR 0x000
+#define SIOMOD0 0x004
+#define SIOMOD1 0x008
+#define SIOSTS 0x00c
+#define SIOTRCR 0x010
+#define SIOBAUR 0x014
+#define SIORBAUR 0x018
+#define SIOTXB 0x01c
+#define SIORXB 0x020
+
+#define UART_RX M32R_SIO0_RXB_PORTL /* In: Receive buffer (DLAB=0) */
+#define UART_TX M32R_SIO0_TXB_PORTL /* Out: Transmit buffer (DLAB=0) */
+#define UART_DLL 0 /* Out: Divisor Latch Low (DLAB=1) */
+#define UART_TRG 0 /* (LCR=BF) FCTR bit 7 selects Rx or Tx
+ * In: Fifo count
+ * Out: Fifo custom trigger levels
+ * XR16C85x only */
+
+#define UART_DLM 0 /* Out: Divisor Latch High (DLAB=1) */
+#define UART_IER M32R_SIO0_TRCR_PORTL /* Out: Interrupt Enable Register */
+#define UART_FCTR 0 /* (LCR=BF) Feature Control Register
+ * XR16C85x only */
+
+#define UART_IIR 0 /* In: Interrupt ID Register */
+#define UART_FCR 0 /* Out: FIFO Control Register */
+#define UART_EFR 0 /* I/O: Extended Features Register */
+ /* (DLAB=1, 16C660 only) */
+
+#define UART_LCR 0 /* Out: Line Control Register */
+#define UART_MCR 0 /* Out: Modem Control Register */
+#define UART_LSR M32R_SIO0_STS_PORTL /* In: Line Status Register */
+#define UART_MSR 0 /* In: Modem Status Register */
+#define UART_SCR 0 /* I/O: Scratch Register */
+#define UART_EMSR 0 /* (LCR=BF) Extended Mode Select Register
+ * FCTR bit 6 selects SCR or EMSR
+ * XR16c85x only */
+
+#endif /* CONFIG_SERIAL_M32R_PLDSIO */
+
+#define UART_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
+/*
+ * These are the definitions for the FIFO Control Register
+ * (16650 only)
+ */
+#define UART_FCR_ENABLE_FIFO 0x01 /* Enable the FIFO */
+#define UART_FCR_CLEAR_RCVR 0x02 /* Clear the RCVR FIFO */
+#define UART_FCR_CLEAR_XMIT 0x04 /* Clear the XMIT FIFO */
+#define UART_FCR_DMA_SELECT 0x08 /* For DMA applications */
+#define UART_FCR_TRIGGER_MASK 0xC0 /* Mask for the FIFO trigger range */
+#define UART_FCR_TRIGGER_1 0x00 /* Mask for trigger set at 1 */
+#define UART_FCR_TRIGGER_4 0x40 /* Mask for trigger set at 4 */
+#define UART_FCR_TRIGGER_8 0x80 /* Mask for trigger set at 8 */
+#define UART_FCR_TRIGGER_14 0xC0 /* Mask for trigger set at 14 */
+/* 16650 redefinitions */
+#define UART_FCR6_R_TRIGGER_8 0x00 /* Mask for receive trigger set at 1 */
+#define UART_FCR6_R_TRIGGER_16 0x40 /* Mask for receive trigger set at 4 */
+#define UART_FCR6_R_TRIGGER_24 0x80 /* Mask for receive trigger set at 8 */
+#define UART_FCR6_R_TRIGGER_28 0xC0 /* Mask for receive trigger set at 14 */
+#define UART_FCR6_T_TRIGGER_16 0x00 /* Mask for transmit trigger set at 16 */
+#define UART_FCR6_T_TRIGGER_8 0x10 /* Mask for transmit trigger set at 8 */
+#define UART_FCR6_T_TRIGGER_24 0x20 /* Mask for transmit trigger set at 24 */
+#define UART_FCR6_T_TRIGGER_30 0x30 /* Mask for transmit trigger set at 30 */
+/* TI 16750 definitions */
+#define UART_FCR7_64BYTE 0x20 /* Go into 64 byte mode */
+
+/*
+ * These are the definitions for the Line Control Register
+ *
+ * Note: if the word length is 5 bits (UART_LCR_WLEN5), then setting
+ * UART_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
+ */
+#define UART_LCR_DLAB 0x80 /* Divisor latch access bit */
+#define UART_LCR_SBC 0x40 /* Set break control */
+#define UART_LCR_SPAR 0x20 /* Stick parity (?) */
+#define UART_LCR_EPAR 0x10 /* Even parity select */
+#define UART_LCR_PARITY 0x08 /* Parity Enable */
+#define UART_LCR_STOP 0x04 /* Stop bits: 0=1 stop bit, 1= 2 stop bits */
+#define UART_LCR_WLEN5 0x00 /* Wordlength: 5 bits */
+#define UART_LCR_WLEN6 0x01 /* Wordlength: 6 bits */
+#define UART_LCR_WLEN7 0x02 /* Wordlength: 7 bits */
+#define UART_LCR_WLEN8 0x03 /* Wordlength: 8 bits */
+
+/*
+ * These are the definitions for the Line Status Register
+ */
+#define UART_LSR_TEMT 0x02 /* Transmitter empty */
+#define UART_LSR_THRE 0x01 /* Transmit-hold-register empty */
+#define UART_LSR_BI 0x00 /* Break interrupt indicator */
+#define UART_LSR_FE 0x80 /* Frame error indicator */
+#define UART_LSR_PE 0x40 /* Parity error indicator */
+#define UART_LSR_OE 0x20 /* Overrun error indicator */
+#define UART_LSR_DR 0x04 /* Receiver data ready */
+
+/*
+ * These are the definitions for the Interrupt Identification Register
+ */
+#define UART_IIR_NO_INT 0x01 /* No interrupts pending */
+#define UART_IIR_ID 0x06 /* Mask for the interrupt ID */
+
+#define UART_IIR_MSI 0x00 /* Modem status interrupt */
+#define UART_IIR_THRI 0x02 /* Transmitter holding register empty */
+#define UART_IIR_RDI 0x04 /* Receiver data interrupt */
+#define UART_IIR_RLSI 0x06 /* Receiver line status interrupt */
+
+/*
+ * These are the definitions for the Interrupt Enable Register
+ */
+#define UART_IER_MSI 0x00 /* Enable Modem status interrupt */
+#define UART_IER_RLSI 0x08 /* Enable receiver line status interrupt */
+#define UART_IER_THRI 0x03 /* Enable Transmitter holding register int. */
+#define UART_IER_RDI 0x04 /* Enable receiver data interrupt */
+/*
+ * Sleep mode for ST16650 and TI16750.
+ * Note that for 16650, EFR-bit 4 must be selected as well.
+ */
+#define UART_IERX_SLEEP 0x10 /* Enable sleep mode */
+
+/*
+ * These are the definitions for the Modem Control Register
+ */
+#define UART_MCR_LOOP 0x10 /* Enable loopback test mode */
+#define UART_MCR_OUT2 0x08 /* Out2 complement */
+#define UART_MCR_OUT1 0x04 /* Out1 complement */
+#define UART_MCR_RTS 0x02 /* RTS complement */
+#define UART_MCR_DTR 0x01 /* DTR complement */
+
+/*
+ * These are the definitions for the Modem Status Register
+ */
+#define UART_MSR_DCD 0x80 /* Data Carrier Detect */
+#define UART_MSR_RI 0x40 /* Ring Indicator */
+#define UART_MSR_DSR 0x20 /* Data Set Ready */
+#define UART_MSR_CTS 0x10 /* Clear to Send */
+#define UART_MSR_DDCD 0x08 /* Delta DCD */
+#define UART_MSR_TERI 0x04 /* Trailing edge ring indicator */
+#define UART_MSR_DDSR 0x02 /* Delta DSR */
+#define UART_MSR_DCTS 0x01 /* Delta CTS */
+#define UART_MSR_ANY_DELTA 0x0F /* Any of the delta bits! */
+
+/*
+ * These are the definitions for the Extended Features Register
+ * (StarTech 16C660 only, when DLAB=1)
+ */
+#define UART_EFR_CTS 0x80 /* CTS flow control */
+#define UART_EFR_RTS 0x40 /* RTS flow control */
+#define UART_EFR_SCD 0x20 /* Special character detect */
+#define UART_EFR_ECB 0x10 /* Enhanced control bit */
+/*
+ * the low four bits control software flow control
+ */
+
+/*
+ * These register definitions are for the 16C950
+ */
+#define UART_ASR 0x01 /* Additional Status Register */
+#define UART_RFL 0x03 /* Receiver FIFO level */
+#define UART_TFL 0x04 /* Transmitter FIFO level */
+#define UART_ICR 0x05 /* Index Control Register */
+
+/* The 16950 ICR registers */
+#define UART_ACR 0x00 /* Additional Control Register */
+#define UART_CPR 0x01 /* Clock Prescalar Register */
+#define UART_TCR 0x02 /* Times Clock Register */
+#define UART_CKS 0x03 /* Clock Select Register */
+#define UART_TTL 0x04 /* Transmitter Interrupt Trigger Level */
+#define UART_RTL 0x05 /* Receiver Interrupt Trigger Level */
+#define UART_FCL 0x06 /* Flow Control Level Lower */
+#define UART_FCH 0x07 /* Flow Control Level Higher */
+#define UART_ID1 0x08 /* ID #1 */
+#define UART_ID2 0x09 /* ID #2 */
+#define UART_ID3 0x0A /* ID #3 */
+#define UART_REV 0x0B /* Revision */
+#define UART_CSR 0x0C /* Channel Software Reset */
+#define UART_NMR 0x0D /* Nine-bit Mode Register */
+#define UART_CTR 0xFF
+
+/*
+ * The 16C950 Additional Control Reigster
+ */
+#define UART_ACR_RXDIS 0x01 /* Receiver disable */
+#define UART_ACR_TXDIS 0x02 /* Receiver disable */
+#define UART_ACR_DSRFC 0x04 /* DSR Flow Control */
+#define UART_ACR_TLENB 0x20 /* 950 trigger levels enable */
+#define UART_ACR_ICRRD 0x40 /* ICR Read enable */
+#define UART_ACR_ASREN 0x80 /* Additional status enable */
+
+/*
+ * These are the definitions for the Feature Control Register
+ * (XR16C85x only, when LCR=bf; doubles with the Interrupt Enable
+ * Register, UART register #1)
+ */
+#define UART_FCTR_RTS_NODELAY 0x00 /* RTS flow control delay */
+#define UART_FCTR_RTS_4DELAY 0x01
+#define UART_FCTR_RTS_6DELAY 0x02
+#define UART_FCTR_RTS_8DELAY 0x03
+#define UART_FCTR_IRDA 0x04 /* IrDa data encode select */
+#define UART_FCTR_TX_INT 0x08 /* Tx interrupt type select */
+#define UART_FCTR_TRGA 0x00 /* Tx/Rx 550 trigger table select */
+#define UART_FCTR_TRGB 0x10 /* Tx/Rx 650 trigger table select */
+#define UART_FCTR_TRGC 0x20 /* Tx/Rx 654 trigger table select */
+#define UART_FCTR_TRGD 0x30 /* Tx/Rx 850 programmable trigger select */
+#define UART_FCTR_SCR_SWAP 0x40 /* Scratch pad register swap */
+#define UART_FCTR_RX 0x00 /* Programmable trigger mode select */
+#define UART_FCTR_TX 0x80 /* Programmable trigger mode select */
+
+/*
+ * These are the definitions for the Enhanced Mode Select Register
+ * (XR16C85x only, when LCR=bf and FCTR bit 6=1; doubles with the
+ * Scratch register, UART register #7)
+ */
+#define UART_EMSR_FIFO_COUNT 0x01 /* Rx/Tx select */
+#define UART_EMSR_ALT_COUNT 0x02 /* Alternating count select */
+
+/*
+ * These are the definitions for the Programmable Trigger
+ * Register (XR16C85x only, when LCR=bf; doubles with the UART RX/TX
+ * register, UART register #0)
+ */
+#define UART_TRG_1 0x01
+#define UART_TRG_4 0x04
+#define UART_TRG_8 0x08
+#define UART_TRG_16 0x10
+#define UART_TRG_32 0x20
+#define UART_TRG_64 0x40
+#define UART_TRG_96 0x60
+#define UART_TRG_120 0x78
+#define UART_TRG_128 0x80
+
+/*
+ * These definitions are for the RSA-DV II/S card, from
+ *
+ * Kiyokazu SUTO <suto@ks-and-ks.ne.jp>
+ */
+
+#define UART_RSA_BASE (-8)
+
+#define UART_RSA_MSR ((UART_RSA_BASE) + 0) /* I/O: Mode Select Register */
+
+#define UART_RSA_MSR_SWAP (1 << 0) /* Swap low/high 8 bytes in I/O port addr */
+#define UART_RSA_MSR_FIFO (1 << 2) /* Enable the external FIFO */
+#define UART_RSA_MSR_FLOW (1 << 3) /* Enable the auto RTS/CTS flow control */
+#define UART_RSA_MSR_ITYP (1 << 4) /* Level (1) / Edge triger (0) */
+
+#define UART_RSA_IER ((UART_RSA_BASE) + 1) /* I/O: Interrupt Enable Register */
+
+#define UART_RSA_IER_Rx_FIFO_H (1 << 0) /* Enable Rx FIFO half full int. */
+#define UART_RSA_IER_Tx_FIFO_H (1 << 1) /* Enable Tx FIFO half full int. */
+#define UART_RSA_IER_Tx_FIFO_E (1 << 2) /* Enable Tx FIFO empty int. */
+#define UART_RSA_IER_Rx_TOUT (1 << 3) /* Enable char receive timeout int */
+#define UART_RSA_IER_TIMER (1 << 4) /* Enable timer interrupt */
+
+#define UART_RSA_SRR ((UART_RSA_BASE) + 2) /* IN: Status Read Register */
+
+#define UART_RSA_SRR_Tx_FIFO_NEMP (1 << 0) /* Tx FIFO is not empty (1) */
+#define UART_RSA_SRR_Tx_FIFO_NHFL (1 << 1) /* Tx FIFO is not half full (1) */
+#define UART_RSA_SRR_Tx_FIFO_NFUL (1 << 2) /* Tx FIFO is not full (1) */
+#define UART_RSA_SRR_Rx_FIFO_NEMP (1 << 3) /* Rx FIFO is not empty (1) */
+#define UART_RSA_SRR_Rx_FIFO_NHFL (1 << 4) /* Rx FIFO is not half full (1) */
+#define UART_RSA_SRR_Rx_FIFO_NFUL (1 << 5) /* Rx FIFO is not full (1) */
+#define UART_RSA_SRR_Rx_TOUT (1 << 6) /* Character reception timeout occurred (1) */
+#define UART_RSA_SRR_TIMER (1 << 7) /* Timer interrupt occurred */
+
+#define UART_RSA_FRR ((UART_RSA_BASE) + 2) /* OUT: FIFO Reset Register */
+
+#define UART_RSA_TIVSR ((UART_RSA_BASE) + 3) /* I/O: Timer Interval Value Set Register */
+
+#define UART_RSA_TCR ((UART_RSA_BASE) + 4) /* OUT: Timer Control Register */
+
+#define UART_RSA_TCR_SWITCH (1 << 0) /* Timer on */
+
+/*
+ * The RSA DSV/II board has two fixed clock frequencies. One is the
+ * standard rate, and the other is 8 times faster.
+ */
+#define SERIAL_RSA_BAUD_BASE (921600)
+#define SERIAL_RSA_BAUD_BASE_LO (SERIAL_RSA_BAUD_BASE / 8)
+
+#endif /* _M32R_SIO_REG_H */
git://git.onelab.eu / linux-2.6.git / blobdiff