57015421d3
The ColdFire UART base addresses varies between the different ColdFire family members. Instead of keeping the base addresses with the UART definitions keep them with the other addresses definitions for each ColdFire part. The motivation for this move is so that when we add new ColdFire part definitions, they are all in a single file (and we shouldn't normally need to modify the UART definitions in mcfuart.h at all). Signed-off-by: Greg Ungerer <gerg@uclinux.org>
186 lines
6.7 KiB
C
186 lines
6.7 KiB
C
/****************************************************************************/
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/*
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* mcfuart.h -- ColdFire internal UART support defines.
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*
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* (C) Copyright 1999-2003, Greg Ungerer (gerg@snapgear.com)
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* (C) Copyright 2000, Lineo Inc. (www.lineo.com)
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*/
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/****************************************************************************/
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#ifndef mcfuart_h
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#define mcfuart_h
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/****************************************************************************/
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#include <linux/serial_core.h>
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#include <linux/platform_device.h>
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struct mcf_platform_uart {
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unsigned long mapbase; /* Physical address base */
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void __iomem *membase; /* Virtual address if mapped */
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unsigned int irq; /* Interrupt vector */
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unsigned int uartclk; /* UART clock rate */
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};
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/*
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* Define the ColdFire UART register set addresses.
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*/
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#define MCFUART_UMR 0x00 /* Mode register (r/w) */
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#define MCFUART_USR 0x04 /* Status register (r) */
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#define MCFUART_UCSR 0x04 /* Clock Select (w) */
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#define MCFUART_UCR 0x08 /* Command register (w) */
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#define MCFUART_URB 0x0c /* Receiver Buffer (r) */
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#define MCFUART_UTB 0x0c /* Transmit Buffer (w) */
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#define MCFUART_UIPCR 0x10 /* Input Port Change (r) */
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#define MCFUART_UACR 0x10 /* Auxiliary Control (w) */
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#define MCFUART_UISR 0x14 /* Interrupt Status (r) */
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#define MCFUART_UIMR 0x14 /* Interrupt Mask (w) */
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#define MCFUART_UBG1 0x18 /* Baud Rate MSB (r/w) */
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#define MCFUART_UBG2 0x1c /* Baud Rate LSB (r/w) */
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#ifdef CONFIG_M5272
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#define MCFUART_UTF 0x28 /* Transmitter FIFO (r/w) */
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#define MCFUART_URF 0x2c /* Receiver FIFO (r/w) */
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#define MCFUART_UFPD 0x30 /* Frac Prec. Divider (r/w) */
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#else
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#define MCFUART_UIVR 0x30 /* Interrupt Vector (r/w) */
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#endif
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#define MCFUART_UIPR 0x34 /* Input Port (r) */
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#define MCFUART_UOP1 0x38 /* Output Port Bit Set (w) */
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#define MCFUART_UOP0 0x3c /* Output Port Bit Reset (w) */
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/*
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* Define bit flags in Mode Register 1 (MR1).
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*/
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#define MCFUART_MR1_RXRTS 0x80 /* Auto RTS flow control */
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#define MCFUART_MR1_RXIRQFULL 0x40 /* RX IRQ type FULL */
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#define MCFUART_MR1_RXIRQRDY 0x00 /* RX IRQ type RDY */
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#define MCFUART_MR1_RXERRBLOCK 0x20 /* RX block error mode */
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#define MCFUART_MR1_RXERRCHAR 0x00 /* RX char error mode */
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#define MCFUART_MR1_PARITYNONE 0x10 /* No parity */
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#define MCFUART_MR1_PARITYEVEN 0x00 /* Even parity */
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#define MCFUART_MR1_PARITYODD 0x04 /* Odd parity */
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#define MCFUART_MR1_PARITYSPACE 0x08 /* Space parity */
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#define MCFUART_MR1_PARITYMARK 0x0c /* Mark parity */
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#define MCFUART_MR1_CS5 0x00 /* 5 bits per char */
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#define MCFUART_MR1_CS6 0x01 /* 6 bits per char */
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#define MCFUART_MR1_CS7 0x02 /* 7 bits per char */
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#define MCFUART_MR1_CS8 0x03 /* 8 bits per char */
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/*
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* Define bit flags in Mode Register 2 (MR2).
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*/
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#define MCFUART_MR2_LOOPBACK 0x80 /* Loopback mode */
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#define MCFUART_MR2_REMOTELOOP 0xc0 /* Remote loopback mode */
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#define MCFUART_MR2_AUTOECHO 0x40 /* Automatic echo */
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#define MCFUART_MR2_TXRTS 0x20 /* Assert RTS on TX */
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#define MCFUART_MR2_TXCTS 0x10 /* Auto CTS flow control */
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#define MCFUART_MR2_STOP1 0x07 /* 1 stop bit */
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#define MCFUART_MR2_STOP15 0x08 /* 1.5 stop bits */
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#define MCFUART_MR2_STOP2 0x0f /* 2 stop bits */
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/*
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* Define bit flags in Status Register (USR).
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*/
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#define MCFUART_USR_RXBREAK 0x80 /* Received BREAK */
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#define MCFUART_USR_RXFRAMING 0x40 /* Received framing error */
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#define MCFUART_USR_RXPARITY 0x20 /* Received parity error */
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#define MCFUART_USR_RXOVERRUN 0x10 /* Received overrun error */
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#define MCFUART_USR_TXEMPTY 0x08 /* Transmitter empty */
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#define MCFUART_USR_TXREADY 0x04 /* Transmitter ready */
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#define MCFUART_USR_RXFULL 0x02 /* Receiver full */
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#define MCFUART_USR_RXREADY 0x01 /* Receiver ready */
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#define MCFUART_USR_RXERR (MCFUART_USR_RXBREAK | MCFUART_USR_RXFRAMING | \
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MCFUART_USR_RXPARITY | MCFUART_USR_RXOVERRUN)
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/*
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* Define bit flags in Clock Select Register (UCSR).
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*/
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#define MCFUART_UCSR_RXCLKTIMER 0xd0 /* RX clock is timer */
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#define MCFUART_UCSR_RXCLKEXT16 0xe0 /* RX clock is external x16 */
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#define MCFUART_UCSR_RXCLKEXT1 0xf0 /* RX clock is external x1 */
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#define MCFUART_UCSR_TXCLKTIMER 0x0d /* TX clock is timer */
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#define MCFUART_UCSR_TXCLKEXT16 0x0e /* TX clock is external x16 */
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#define MCFUART_UCSR_TXCLKEXT1 0x0f /* TX clock is external x1 */
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/*
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* Define bit flags in Command Register (UCR).
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*/
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#define MCFUART_UCR_CMDNULL 0x00 /* No command */
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#define MCFUART_UCR_CMDRESETMRPTR 0x10 /* Reset MR pointer */
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#define MCFUART_UCR_CMDRESETRX 0x20 /* Reset receiver */
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#define MCFUART_UCR_CMDRESETTX 0x30 /* Reset transmitter */
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#define MCFUART_UCR_CMDRESETERR 0x40 /* Reset error status */
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#define MCFUART_UCR_CMDRESETBREAK 0x50 /* Reset BREAK change */
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#define MCFUART_UCR_CMDBREAKSTART 0x60 /* Start BREAK */
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#define MCFUART_UCR_CMDBREAKSTOP 0x70 /* Stop BREAK */
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#define MCFUART_UCR_TXNULL 0x00 /* No TX command */
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#define MCFUART_UCR_TXENABLE 0x04 /* Enable TX */
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#define MCFUART_UCR_TXDISABLE 0x08 /* Disable TX */
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#define MCFUART_UCR_RXNULL 0x00 /* No RX command */
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#define MCFUART_UCR_RXENABLE 0x01 /* Enable RX */
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#define MCFUART_UCR_RXDISABLE 0x02 /* Disable RX */
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/*
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* Define bit flags in Input Port Change Register (UIPCR).
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*/
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#define MCFUART_UIPCR_CTSCOS 0x10 /* CTS change of state */
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#define MCFUART_UIPCR_CTS 0x01 /* CTS value */
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/*
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* Define bit flags in Input Port Register (UIP).
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*/
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#define MCFUART_UIPR_CTS 0x01 /* CTS value */
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/*
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* Define bit flags in Output Port Registers (UOP).
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* Clear bit by writing to UOP0, set by writing to UOP1.
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*/
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#define MCFUART_UOP_RTS 0x01 /* RTS set or clear */
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/*
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* Define bit flags in the Auxiliary Control Register (UACR).
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*/
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#define MCFUART_UACR_IEC 0x01 /* Input enable control */
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/*
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* Define bit flags in Interrupt Status Register (UISR).
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* These same bits are used for the Interrupt Mask Register (UIMR).
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*/
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#define MCFUART_UIR_COS 0x80 /* Change of state (CTS) */
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#define MCFUART_UIR_DELTABREAK 0x04 /* Break start or stop */
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#define MCFUART_UIR_RXREADY 0x02 /* Receiver ready */
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#define MCFUART_UIR_TXREADY 0x01 /* Transmitter ready */
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#ifdef CONFIG_M5272
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/*
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* Define bit flags in the Transmitter FIFO Register (UTF).
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*/
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#define MCFUART_UTF_TXB 0x1f /* Transmitter data level */
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#define MCFUART_UTF_FULL 0x20 /* Transmitter fifo full */
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#define MCFUART_UTF_TXS 0xc0 /* Transmitter status */
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/*
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* Define bit flags in the Receiver FIFO Register (URF).
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*/
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#define MCFUART_URF_RXB 0x1f /* Receiver data level */
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#define MCFUART_URF_FULL 0x20 /* Receiver fifo full */
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#define MCFUART_URF_RXS 0xc0 /* Receiver status */
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#endif
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#if defined(CONFIG_M54xx)
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#define MCFUART_TXFIFOSIZE 512
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#elif defined(CONFIG_M5272)
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#define MCFUART_TXFIFOSIZE 25
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#else
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#define MCFUART_TXFIFOSIZE 1
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#endif
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/****************************************************************************/
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#endif /* mcfuart_h */
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