diff options
Diffstat (limited to 'board/pcippc2/fpga_serial.c')
-rw-r--r-- | board/pcippc2/fpga_serial.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/board/pcippc2/fpga_serial.c b/board/pcippc2/fpga_serial.c deleted file mode 100644 index de61ca0e56..0000000000 --- a/board/pcippc2/fpga_serial.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * (C) Copyright 2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <config.h> -#include <common.h> -#include <asm/io.h> - -#include "fpga_serial.h" -#include "hardware.h" -#include "pcippc2.h" - -DECLARE_GLOBAL_DATA_PTR; - - /* 8 data, 1 stop, no parity - */ -#define LCRVAL 0x03 - /* RTS/DTR - */ -#define MCRVAL 0x03 - /* Clear & enable FIFOs - */ -#define FCRVAL 0x07 - -static void fpga_serial_wait (void); -static void fpga_serial_print (char c); - -void fpga_serial_init (int baudrate) -{ - int clock_divisor = 115200 / baudrate; - - out8 (FPGA (INT, SERIAL_CONFIG), 0x24); - iobarrier_rw (); - - fpga_serial_wait (); - - out8 (UART (IER), 0); - out8 (UART (LCR), LCRVAL | 0x80); - iobarrier_rw (); - out8 (UART (DLL), clock_divisor & 0xff); - out8 (UART (DLM), clock_divisor >> 8); - iobarrier_rw (); - out8 (UART (LCR), LCRVAL); - iobarrier_rw (); - out8 (UART (MCR), MCRVAL); - out8 (UART (FCR), FCRVAL); - iobarrier_rw (); -} - -void fpga_serial_putc (char c) -{ - if (c) { - fpga_serial_print (c); - } -} - -int fpga_serial_getc (void) -{ - while ((in8 (UART (LSR)) & 0x01) == 0); - - return in8 (UART (RBR)); -} - -int fpga_serial_tstc (void) -{ - return (in8 (UART (LSR)) & 0x01) != 0; -} - -void fpga_serial_setbrg (void) -{ - int clock_divisor = 115200 / gd->baudrate; - - fpga_serial_wait (); - - out8 (UART (LCR), LCRVAL | 0x80); - iobarrier_rw (); - out8 (UART (DLL), clock_divisor & 0xff); - out8 (UART (DLM), clock_divisor >> 8); - iobarrier_rw (); - out8 (UART (LCR), LCRVAL); - iobarrier_rw (); -} - -static void fpga_serial_wait (void) -{ - while ((in8 (UART (LSR)) & 0x40) == 0); -} - -static void fpga_serial_print (char c) -{ - if (c == '\n') { - while ((in8 (UART (LSR)) & 0x20) == 0); - - out8 (UART (THR), '\r'); - iobarrier_rw (); - } - - while ((in8 (UART (LSR)) & 0x20) == 0); - - out8 (UART (THR), c); - iobarrier_rw (); - - if (c == '\n') { - fpga_serial_wait (); - } -} |