@ -15,99 +15,99 @@
# include <linux/compiler.h>
/* UART Control Register Bit Fields.*/
# define URXD_CHARRDY (1<<15)
# define URXD_ERR (1<<14)
# define URXD_OVRRUN (1<<13)
# define URXD_FRMERR (1<<12)
# define URXD_BRK (1<<11)
# define URXD_PRERR (1<<10)
# define URXD_RX_DATA (0xFF)
# define UCR1_ADEN (1<<15) /* Auto dectect interrupt */
# define UCR1_ADBR (1<<14) /* Auto detect baud rate */
# define UCR1_TRDYEN (1<<13) /* Transmitter ready interrupt enable */
# define UCR1_IDEN (1<<12) /* Idle condition interrupt */
# define UCR1_RRDYEN (1<<9) /* Recv ready interrupt enable */
# define UCR1_RDMAEN (1<<8) /* Recv ready DMA enable */
# define UCR1_IREN (1<<7) /* Infrared interface enable */
# define UCR1_TXMPTYEN (1<<6) /* Transimitter empty interrupt enable */
# define UCR1_RTSDEN (1<<5) /* RTS delta interrupt enable */
# define UCR1_SNDBRK (1<<4) /* Send break */
# define UCR1_TDMAEN (1<<3) /* Transmitter ready DMA enable */
# define UCR1_UARTCLKEN (1<<2) /* UART clock enabled */
# define UCR1_DOZE (1<<1) /* Doze */
# define UCR1_UARTEN (1<<0) /* UART enabled */
# define UCR2_ESCI (1<<15) /* Escape seq interrupt enable */
# define UCR2_IRTS (1<<14) /* Ignore RTS pin */
# define UCR2_CTSC (1<<13) /* CTS pin control */
# define UCR2_CTS (1<<12) /* Clear to send */
# define UCR2_ESCEN (1<<11) /* Escape enable */
# define UCR2_PREN (1<<8) /* Parity enable */
# define UCR2_PROE (1<<7) /* Parity odd/even */
# define UCR2_STPB (1<<6) /* Stop */
# define UCR2_WS (1<<5) /* Word size */
# define UCR2_RTSEN (1<<4) /* Request to send interrupt enable */
# define UCR2_TXEN (1<<2) /* Transmitter enabled */
# define UCR2_RXEN (1<<1) /* Receiver enabled */
# define UCR2_SRST (1<<0) /* SW reset */
# define UCR3_DTREN (1<<13) /* DTR interrupt enable */
# define UCR3_PARERREN (1<<12) /* Parity enable */
# define UCR3_FRAERREN (1<<11) /* Frame error interrupt enable */
# define UCR3_DSR (1<<10) /* Data set ready */
# define UCR3_DCD (1<<9) /* Data carrier detect */
# define UCR3_RI (1<<8) /* Ring indicator */
# define UCR3_ADNIMP (1<<7) /* Autobaud Detection Not Improved */
# define UCR3_RXDSEN (1<<6) /* Receive status interrupt enable */
# define UCR3_AIRINTEN (1<<5) /* Async IR wake interrupt enable */
# define UCR3_AWAKEN (1<<4) /* Async wake interrupt enable */
# define UCR3_REF25 (1<<3) /* Ref freq 25 MHz */
# define UCR3_REF30 (1<<2) /* Ref Freq 30 MHz */
# define UCR3_INVT (1<<1) /* Inverted Infrared transmission */
# define UCR3_BPEN (1<<0) /* Preset registers enable */
# define UCR4_CTSTL_32 (32<<10) /* CTS trigger level (32 chars) */
# define UCR4_INVR (1<<9) /* Inverted infrared reception */
# define UCR4_ENIRI (1<<8) /* Serial infrared interrupt enable */
# define UCR4_WKEN (1<<7) /* Wake interrupt enable */
# define UCR4_REF16 (1<<6) /* Ref freq 16 MHz */
# define UCR4_IRSC (1<<5) /* IR special case */
# define UCR4_TCEN (1<<3) /* Transmit complete interrupt enable */
# define UCR4_BKEN (1<<2) /* Break condition interrupt enable */
# define UCR4_OREN (1<<1) /* Receiver overrun interrupt enable */
# define UCR4_DREN (1<<0) /* Recv data ready interrupt enable */
# define UFCR_RXTL_SHF 0 /* Receiver trigger level shift */
# define UFCR_RFDIV (7<<7) /* Reference freq divider mask */
# define UFCR_RFDIV_SHF 7 /* Reference freq divider shift */
# define RFDIV 4 /* divide input clock by 2 */
# define UFCR_DCEDTE (1<<6) /* DTE mode select */
# define UFCR_TXTL_SHF 10 /* Transmitter trigger level shift */
# define USR1_PARITYERR (1<<15) /* Parity error interrupt flag */
# define USR1_RTSS (1<<14) /* RTS pin status */
# define USR1_TRDY (1<<13) /* Transmitter ready interrupt/dma flag */
# define USR1_RTSD (1<<12) /* RTS delta */
# define USR1_ESCF (1<<11) /* Escape seq interrupt flag */
# define USR1_FRAMERR (1<<10) /* Frame error interrupt flag */
# define USR1_RRDY (1<<9) /* Receiver ready interrupt/dma flag */
# define USR1_TIMEOUT (1<<7) /* Receive timeout interrupt status */
# define USR1_RXDS (1<<6) /* Receiver idle interrupt flag */
# define USR1_AIRINT (1<<5) /* Async IR wake interrupt flag */
# define USR1_AWAKE (1<<4) /* Aysnc wake interrupt flag */
# define USR2_ADET (1<<15) /* Auto baud rate detect complete */
# define USR2_TXFE (1<<14) /* Transmit buffer FIFO empty */
# define USR2_DTRF (1<<13) /* DTR edge interrupt flag */
# define USR2_IDLE (1<<12) /* Idle condition */
# define USR2_IRINT (1<<8) /* Serial infrared interrupt flag */
# define USR2_WAKE (1<<7) /* Wake */
# define USR2_RTSF (1<<4) /* RTS edge interrupt flag */
# define USR2_TXDC (1<<3) /* Transmitter complete */
# define USR2_BRCD (1<<2) /* Break condition */
# define USR2_ORE (1<<1) /* Overrun error */
# define USR2_RDR (1<<0) /* Recv data ready */
# define UTS_FRCPERR (1<<13) /* Force parity error */
# define UTS_LOOP (1<<12) /* Loop tx and rx */
# define UTS_TXEMPTY (1<<6) /* TxFIFO empty */
# define UTS_RXEMPTY (1<<5) /* RxFIFO empty */
# define UTS_TXFULL (1<<4) /* TxFIFO full */
# define UTS_RXFULL (1<<3) /* RxFIFO full */
# define UTS_SOFTRS (1<<0) /* Software reset */
# define URXD_CHARRDY (1<<15)
# define URXD_ERR (1<<14)
# define URXD_OVRRUN (1<<13)
# define URXD_FRMERR (1<<12)
# define URXD_BRK (1<<11)
# define URXD_PRERR (1<<10)
# define URXD_RX_DATA (0xFF)
# define UCR1_ADEN (1<<15) /* Auto dectect interrupt */
# define UCR1_ADBR (1<<14) /* Auto detect baud rate */
# define UCR1_TRDYEN (1<<13) /* Transmitter ready interrupt enable */
# define UCR1_IDEN (1<<12) /* Idle condition interrupt */
# define UCR1_RRDYEN (1<<9) /* Recv ready interrupt enable */
# define UCR1_RDMAEN (1<<8) /* Recv ready DMA enable */
# define UCR1_IREN (1<<7) /* Infrared interface enable */
# define UCR1_TXMPTYEN (1<<6) /* Transimitter empty interrupt enable */
# define UCR1_RTSDEN (1<<5) /* RTS delta interrupt enable */
# define UCR1_SNDBRK (1<<4) /* Send break */
# define UCR1_TDMAEN (1<<3) /* Transmitter ready DMA enable */
# define UCR1_UARTCLKEN (1<<2) /* UART clock enabled */
# define UCR1_DOZE (1<<1) /* Doze */
# define UCR1_UARTEN (1<<0) /* UART enabled */
# define UCR2_ESCI (1<<15) /* Escape seq interrupt enable */
# define UCR2_IRTS (1<<14) /* Ignore RTS pin */
# define UCR2_CTSC (1<<13) /* CTS pin control */
# define UCR2_CTS (1<<12) /* Clear to send */
# define UCR2_ESCEN (1<<11) /* Escape enable */
# define UCR2_PREN (1<<8) /* Parity enable */
# define UCR2_PROE (1<<7) /* Parity odd/even */
# define UCR2_STPB (1<<6) /* Stop */
# define UCR2_WS (1<<5) /* Word size */
# define UCR2_RTSEN (1<<4) /* Request to send interrupt enable */
# define UCR2_TXEN (1<<2) /* Transmitter enabled */
# define UCR2_RXEN (1<<1) /* Receiver enabled */
# define UCR2_SRST (1<<0) /* SW reset */
# define UCR3_DTREN (1<<13) /* DTR interrupt enable */
# define UCR3_PARERREN (1<<12) /* Parity enable */
# define UCR3_FRAERREN (1<<11) /* Frame error interrupt enable */
# define UCR3_DSR (1<<10) /* Data set ready */
# define UCR3_DCD (1<<9) /* Data carrier detect */
# define UCR3_RI (1<<8) /* Ring indicator */
# define UCR3_ADNIMP (1<<7) /* Autobaud Detection Not Improved */
# define UCR3_RXDSEN (1<<6) /* Receive status interrupt enable */
# define UCR3_AIRINTEN (1<<5) /* Async IR wake interrupt enable */
# define UCR3_AWAKEN (1<<4) /* Async wake interrupt enable */
# define UCR3_REF25 (1<<3) /* Ref freq 25 MHz */
# define UCR3_REF30 (1<<2) /* Ref Freq 30 MHz */
# define UCR3_INVT (1<<1) /* Inverted Infrared transmission */
# define UCR3_BPEN (1<<0) /* Preset registers enable */
# define UCR4_CTSTL_32 (32<<10) /* CTS trigger level (32 chars) */
# define UCR4_INVR (1<<9) /* Inverted infrared reception */
# define UCR4_ENIRI (1<<8) /* Serial infrared interrupt enable */
# define UCR4_WKEN (1<<7) /* Wake interrupt enable */
# define UCR4_REF16 (1<<6) /* Ref freq 16 MHz */
# define UCR4_IRSC (1<<5) /* IR special case */
# define UCR4_TCEN (1<<3) /* Transmit complete interrupt enable */
# define UCR4_BKEN (1<<2) /* Break condition interrupt enable */
# define UCR4_OREN (1<<1) /* Receiver overrun interrupt enable */
# define UCR4_DREN (1<<0) /* Recv data ready interrupt enable */
# define UFCR_RXTL_SHF 0 /* Receiver trigger level shift */
# define UFCR_RFDIV (7<<7) /* Reference freq divider mask */
# define UFCR_RFDIV_SHF 7 /* Reference freq divider shift */
# define RFDIV 4 /* divide input clock by 2 */
# define UFCR_DCEDTE (1<<6) /* DTE mode select */
# define UFCR_TXTL_SHF 10 /* Transmitter trigger level shift */
# define USR1_PARITYERR (1<<15) /* Parity error interrupt flag */
# define USR1_RTSS (1<<14) /* RTS pin status */
# define USR1_TRDY (1<<13) /* Transmitter ready interrupt/dma flag */
# define USR1_RTSD (1<<12) /* RTS delta */
# define USR1_ESCF (1<<11) /* Escape seq interrupt flag */
# define USR1_FRAMERR (1<<10) /* Frame error interrupt flag */
# define USR1_RRDY (1<<9) /* Receiver ready interrupt/dma flag */
# define USR1_TIMEOUT (1<<7) /* Receive timeout interrupt status */
# define USR1_RXDS (1<<6) /* Receiver idle interrupt flag */
# define USR1_AIRINT (1<<5) /* Async IR wake interrupt flag */
# define USR1_AWAKE (1<<4) /* Aysnc wake interrupt flag */
# define USR2_ADET (1<<15) /* Auto baud rate detect complete */
# define USR2_TXFE (1<<14) /* Transmit buffer FIFO empty */
# define USR2_DTRF (1<<13) /* DTR edge interrupt flag */
# define USR2_IDLE (1<<12) /* Idle condition */
# define USR2_IRINT (1<<8) /* Serial infrared interrupt flag */
# define USR2_WAKE (1<<7) /* Wake */
# define USR2_RTSF (1<<4) /* RTS edge interrupt flag */
# define USR2_TXDC (1<<3) /* Transmitter complete */
# define USR2_BRCD (1<<2) /* Break condition */
# define USR2_ORE (1<<1) /* Overrun error */
# define USR2_RDR (1<<0) /* Recv data ready */
# define UTS_FRCPERR (1<<13) /* Force parity error */
# define UTS_LOOP (1<<12) /* Loop tx and rx */
# define UTS_TXEMPTY (1<<6) /* TxFIFO empty */
# define UTS_RXEMPTY (1<<5) /* RxFIFO empty */
# define UTS_TXFULL (1<<4) /* TxFIFO full */
# define UTS_RXFULL (1<<3) /* RxFIFO full */
# define UTS_SOFTRS (1<<0) /* Software reset */
# define TXTL 2 /* reset default */
# define RXTL 1 /* reset default */
@ -212,9 +212,7 @@ static void mxc_serial_putc(const char c)
WATCHDOG_RESET ( ) ;
}
/*
* Test whether a character is in the RX buffer
*/
/* Test whether a character is in the RX buffer */
static int mxc_serial_tstc ( void )
{
/* If receive fifo is empty, return false */
@ -226,7 +224,6 @@ static int mxc_serial_tstc(void)
/*
* Initialise the serial port with the given baudrate . The settings
* are always 8 data bits , no parity , 1 stop bit , no start bits .
*
*/
static int mxc_serial_init ( void )
{