diff options
Diffstat (limited to 'arch/mn10300/kernel/gdb-io-serial-low.S')
| -rw-r--r-- | arch/mn10300/kernel/gdb-io-serial-low.S | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/arch/mn10300/kernel/gdb-io-serial-low.S b/arch/mn10300/kernel/gdb-io-serial-low.S deleted file mode 100644 index b1d0152e96cb..000000000000 --- a/arch/mn10300/kernel/gdb-io-serial-low.S +++ /dev/null @@ -1,91 +0,0 @@ -############################################################################### -# -# 16550 serial Rx interrupt handler for gdbstub I/O -# -# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. -# Written by David Howells (dhowells@redhat.com) -# -# This program is free software; you can redistribute it and/or -# modify it under the terms of the GNU General Public Licence -# as published by the Free Software Foundation; either version -# 2 of the Licence, or (at your option) any later version. -# -############################################################################### -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/smp.h> -#include <asm/cpu-regs.h> -#include <asm/thread_info.h> -#include <asm/frame.inc> -#include <asm/intctl-regs.h> -#include <asm/irqflags.h> -#include <unit/serial.h> - - .text - -############################################################################### -# -# GDB stub serial receive interrupt entry point -# - intended to run at interrupt priority 0 -# -############################################################################### - .globl gdbstub_io_rx_handler - .type gdbstub_io_rx_handler,@function -gdbstub_io_rx_handler: - movm [d2,d3,a2,a3],(sp) - -#if 1 - movbu (GDBPORT_SERIAL_IIR),d2 -#endif - - mov (gdbstub_rx_inp),a3 -gdbstub_io_rx_more: - mov a3,a2 - add 2,a3 - and 0x00000fff,a3 - mov (gdbstub_rx_outp),d3 - cmp a3,d3 - beq gdbstub_io_rx_overflow - - movbu (GDBPORT_SERIAL_LSR),d3 - btst UART_LSR_DR,d3 - beq gdbstub_io_rx_done - movbu (GDBPORT_SERIAL_RX),d2 - movbu d3,(gdbstub_rx_buffer+1,a2) - movbu d2,(gdbstub_rx_buffer,a2) - mov a3,(gdbstub_rx_inp) - bra gdbstub_io_rx_more - -gdbstub_io_rx_done: - mov GxICR_DETECT,d2 - movbu d2,(XIRQxICR(GDBPORT_SERIAL_IRQ)) # ACK the interrupt - movhu (XIRQxICR(GDBPORT_SERIAL_IRQ)),d2 # flush - movm (sp),[d2,d3,a2,a3] - bset 0x01,(gdbstub_busy) - beq gdbstub_io_rx_enter - rti - -gdbstub_io_rx_overflow: - bset 0x01,(gdbstub_rx_overflow) - bra gdbstub_io_rx_done - -gdbstub_io_rx_enter: - LOCAL_CHANGE_INTR_MASK_LEVEL(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL+1)) - add -4,sp - SAVE_ALL - - mov 0xffffffff,d0 - mov d0,(REG_ORIG_D0,fp) - mov 0x280,d1 - - mov fp,d0 - call gdbstub_rx_irq[],0 # gdbstub_rx_irq(regs,excep) - - LOCAL_CLI - bclr 0x01,(gdbstub_busy) - - .globl gdbstub_return -gdbstub_return: - RESTORE_ALL - - .size gdbstub_io_rx_handler,.-gdbstub_io_rx_handler |