diff options
Diffstat (limited to 'arch/mips/lemote/lm2e/dbg_io.c')
| -rw-r--r-- | arch/mips/lemote/lm2e/dbg_io.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/mips/lemote/lm2e/dbg_io.c b/arch/mips/lemote/lm2e/dbg_io.c deleted file mode 100644 index 6c95da3ca76..00000000000 --- a/arch/mips/lemote/lm2e/dbg_io.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * Copyright 2001 MontaVista Software Inc. - * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net - * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org) - * - * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology - * Author: Fuxin Zhang, zhangfx@lemote.com - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <linux/io.h> -#include <linux/init.h> -#include <linux/types.h> - -#include <asm/serial.h> - -#define UART16550_BAUD_2400 2400 -#define UART16550_BAUD_4800 4800 -#define UART16550_BAUD_9600 9600 -#define UART16550_BAUD_19200 19200 -#define UART16550_BAUD_38400 38400 -#define UART16550_BAUD_57600 57600 -#define UART16550_BAUD_115200 115200 - -#define UART16550_PARITY_NONE 0 -#define UART16550_PARITY_ODD 0x08 -#define UART16550_PARITY_EVEN 0x18 -#define UART16550_PARITY_MARK 0x28 -#define UART16550_PARITY_SPACE 0x38 - -#define UART16550_DATA_5BIT 0x0 -#define UART16550_DATA_6BIT 0x1 -#define UART16550_DATA_7BIT 0x2 -#define UART16550_DATA_8BIT 0x3 - -#define UART16550_STOP_1BIT 0x0 -#define UART16550_STOP_2BIT 0x4 - -/* ----------------------------------------------------- */ - -/* === CONFIG === */ -#ifdef CONFIG_64BIT -#define BASE (0xffffffffbfd003f8) -#else -#define BASE (0xbfd003f8) -#endif - -#define MAX_BAUD BASE_BAUD -/* === END OF CONFIG === */ - -#define REG_OFFSET 1 - -/* register offset */ -#define OFS_RCV_BUFFER 0 -#define OFS_TRANS_HOLD 0 -#define OFS_SEND_BUFFER 0 -#define OFS_INTR_ENABLE (1*REG_OFFSET) -#define OFS_INTR_ID (2*REG_OFFSET) -#define OFS_DATA_FORMAT (3*REG_OFFSET) -#define OFS_LINE_CONTROL (3*REG_OFFSET) -#define OFS_MODEM_CONTROL (4*REG_OFFSET) -#define OFS_RS232_OUTPUT (4*REG_OFFSET) -#define OFS_LINE_STATUS (5*REG_OFFSET) -#define OFS_MODEM_STATUS (6*REG_OFFSET) -#define OFS_RS232_INPUT (6*REG_OFFSET) -#define OFS_SCRATCH_PAD (7*REG_OFFSET) - -#define OFS_DIVISOR_LSB (0*REG_OFFSET) -#define OFS_DIVISOR_MSB (1*REG_OFFSET) - -/* memory-mapped read/write of the port */ -#define UART16550_READ(y) readb((char *)BASE + (y)) -#define UART16550_WRITE(y, z) writeb(z, (char *)BASE + (y)) - -void debugInit(u32 baud, u8 data, u8 parity, u8 stop) -{ - u32 divisor; - - /* disable interrupts */ - UART16550_WRITE(OFS_INTR_ENABLE, 0); - - /* set up buad rate */ - /* set DIAB bit */ - UART16550_WRITE(OFS_LINE_CONTROL, 0x80); - - /* set divisor */ - divisor = MAX_BAUD / baud; - UART16550_WRITE(OFS_DIVISOR_LSB, divisor & 0xff); - UART16550_WRITE(OFS_DIVISOR_MSB, (divisor & 0xff00) >> 8); - - /* clear DIAB bit */ - UART16550_WRITE(OFS_LINE_CONTROL, 0x0); - - /* set data format */ - UART16550_WRITE(OFS_DATA_FORMAT, data | parity | stop); -} - -static int remoteDebugInitialized; - -u8 getDebugChar(void) -{ - if (!remoteDebugInitialized) { - remoteDebugInitialized = 1; - debugInit(UART16550_BAUD_115200, - UART16550_DATA_8BIT, - UART16550_PARITY_NONE, UART16550_STOP_1BIT); - } - - while ((UART16550_READ(OFS_LINE_STATUS) & 0x1) == 0) ; - return UART16550_READ(OFS_RCV_BUFFER); -} - -int putDebugChar(u8 byte) -{ - if (!remoteDebugInitialized) { - remoteDebugInitialized = 1; - /* - debugInit(UART16550_BAUD_115200, - UART16550_DATA_8BIT, - UART16550_PARITY_NONE, UART16550_STOP_1BIT); */ - } - - while ((UART16550_READ(OFS_LINE_STATUS) & 0x20) == 0) ; - UART16550_WRITE(OFS_SEND_BUFFER, byte); - return 1; -} |