diff options
Diffstat (limited to 'board/Marvell/common/ns16550.c')
-rw-r--r-- | board/Marvell/common/ns16550.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/board/Marvell/common/ns16550.c b/board/Marvell/common/ns16550.c deleted file mode 100644 index 7839b68..0000000 --- a/board/Marvell/common/ns16550.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * COM1 NS16550 support - * originally from linux source (arch/powerpc/boot/ns16550.c) - * modified to use CONFIG_SYS_ISA_MEM and new defines - * - * further modified by Josh Huber <huber@mclx.com> to support - * the DUART on the Galileo Eval board. (db64360) - */ - -#include <config.h> -#include "ns16550.h" - -#ifdef ZUMA_NTL -/* no 16550 device */ -#else -const NS16550_t COM_PORTS[] = { (NS16550_t) (CONFIG_SYS_DUART_IO + 0), - (NS16550_t) (CONFIG_SYS_DUART_IO + 0x20) -}; - -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_DTR | MCR_RTS; /* RTS/DTR */ - - /* Clear & enable FIFOs */ - com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; - 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_DTR | MCR_RTS; /* RTS/DTR */ - - /* Clear & enable FIFOs */ - com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR; -} - -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); -} -#endif |