diff options
Diffstat (limited to 'board/bmw/ns16550.c')
-rw-r--r-- | board/bmw/ns16550.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/board/bmw/ns16550.c b/board/bmw/ns16550.c deleted file mode 100644 index be455bbefe..0000000000 --- a/board/bmw/ns16550.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * COM1 NS16550 support - * originally from linux source (arch/powerpc/boot/ns16550.c) - * modified to use CONFIG_SYS_ISA_MEM and new defines - */ - -#include <config.h> -#include "ns16550.h" - -typedef struct NS16550 *NS16550_t; - -const NS16550_t COM_PORTS[] = - { (NS16550_t) ((CONFIG_SYS_EUMB_ADDR) + 0x4500), -(NS16550_t) ((CONFIG_SYS_EUMB_ADDR) + 0x4600) }; - -volatile struct NS16550 *NS16550_init (int chan, int baud_divisor) -{ - volatile struct NS16550 *com_port; - - com_port = (struct NS16550 *) COM_PORTS[chan]; - com_port->ier = 0x00; - com_port->lcr = LCR_BKSE; /* Access baud rate */ - com_port->dll = baud_divisor & 0xff; /* 9600 baud */ - com_port->dlm = (baud_divisor >> 8) & 0xff; - com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */ - com_port->mcr = MCR_RTS; /* RTS/DTR */ - com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */ - return (com_port); -} - -void NS16550_reinit (volatile struct NS16550 *com_port, int baud_divisor) -{ - com_port->ier = 0x00; - com_port->lcr = LCR_BKSE; /* Access baud rate */ - com_port->dll = baud_divisor & 0xff; /* 9600 baud */ - com_port->dlm = (baud_divisor >> 8) & 0xff; - com_port->lcr = LCR_8N1; /* 8 data, 1 stop, no parity */ - com_port->mcr = MCR_RTS; /* RTS/DTR */ - com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; /* Clear & enable FIFOs */ -} - -void NS16550_putc (volatile struct NS16550 *com_port, unsigned char c) -{ - while ((com_port->lsr & LSR_THRE) == 0); - com_port->thr = c; -} - -unsigned char NS16550_getc (volatile struct NS16550 *com_port) -{ - while ((com_port->lsr & LSR_DR) == 0); - return (com_port->rbr); -} - -int NS16550_tstc (volatile struct NS16550 *com_port) -{ - return ((com_port->lsr & LSR_DR) != 0); -} |