remove unsupported targets

[openwrt/svn-archive/openwrt.git] / target / linux / adm5120-2.6 / files / arch / mips / adm5120 / int-handler.S

diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/int-handler.S b/target/linux/adm5120-2.6/files/arch/mips/adm5120/int-handler.S
deleted file mode 100644 (file)
index f118fb4..0000000
--- a/target/linux/adm5120-2.6/files/arch/mips/adm5120/int-handler.S
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999, 2000 MIPS Technologies, Inc.  All rights reserved.
- *
- * ########################################################################
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope 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.
- *
- * ########################################################################
- *
- * Interrupt exception dispatch code.
- *
- */
-#include <linux/autoconf.h>
-
-#include <asm/asm.h>
-#include <asm/mipsregs.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-
-#define STATUS_IE      0x00000001
-
-/* A lot of complication here is taken away because:
- *
- * 1) We handle one interrupt and return, sitting in a loop and moving across
- *    all the pending IRQ bits in the cause register is _NOT_ the answer, the
- *    common case is one pending IRQ so optimize in that direction.
- *
- * 2) We need not check against bits in the status register IRQ mask, that
- *    would make this routine slow as hell.
- *
- * 3) Linux only thinks in terms of all IRQs on or all IRQs off, nothing in
- *    between like BSD spl() brain-damage.
- *
- * Furthermore, the IRQs on the MIPS board look basically (barring software
- * IRQs which we don't use at all and all external interrupt sources are
- * combined together on hardware interrupt 0 (MIPS IRQ 2)) like:
- *
- *     MIPS IRQ        Source
- *      --------        ------
- *             0       Software (ignored)
- *             1        Software (ignored)
- *             2        Combined hardware interrupt (hw0)
- *             3        Hardware (ignored)
- *             4        Hardware (ignored)
- *             5        Hardware (ignored)
- *             6        Hardware (ignored)
- *             7        R4k timer (what we use)
- *
- * Note: On the SEAD board thing are a little bit different.
- *       Here IRQ 2 (hw0) is wired to the UART0 and IRQ 3 (hw1) is wired
- *       wired to UART1.
- *     
- * We handle the IRQ according to _our_ priority which is:
- *
- * Highest ----     R4k Timer
- * Lowest  ----     Combined hardware interrupt
- *
- * then we just return, if multiple IRQs are pending then we will just take
- * another exception, big deal.
- */
-
-       .text
-       .set    noreorder
-       .set    noat
-       .align  5
-
-NESTED(mipsIRQ, PT_SIZE, sp)
-       SAVE_ALL
-       CLI
-       .set    at
-
-       mfc0    s0, CP0_CAUSE           
-       mfc0    s1, CP0_STATUS
-       and     s0, s0, s1
-       
-       /* First we check for r4k counter/timer IRQ. */
-       andi    a0, s0, CAUSEF_IP7
-       beq             a0, zero, 1f
-       nop
-
-       move    a0, sp
-       jal             mips_timer_interrupt
-       nop
-
-       j               ret_from_irq
-       nop                             
-
-1:
-       andi    a0, s0, CAUSEF_IP2
-       beq             a0, zero, 1f    
-       nop
-       
-       move    a0, sp                  
-       jal             adm5120_hw0_irqdispatch  
-       nop
-1:
-       j               ret_from_irq
-       nop                                                     
-
-END(mipsIRQ)
-
-
-LEAF(mips_int_lock)
-       .set noreorder
-       mfc0    v0, CP0_STATUS
-       li              v1, ~STATUS_IE
-       and             v1, v1, v0
-       mtc0    v1, CP0_STATUS
-       j               ra
-       and             v0, v0, STATUS_IE
-       .set reorder
-END(mips_int_lock)
-
-
-LEAF(mips_int_unlock)
-       mfc0    v0, CP0_STATUS
-       and             a0, a0, STATUS_IE
-       or              v0, v0, a0
-       mtc0    v0, CP0_STATUS
-       j               ra
-       nop
-END(mips_int_unlock)
-