fix irq handling on 2.6.17

SVN-Revision: 4017

diff --git a/openwrt/target/linux/aruba-2.6/patches/000-aruba.patch b/openwrt/target/linux/aruba-2.6/patches/000-aruba.patch
index 83f023cfe06a0397fb3e8a5a5535d783a8f58ec0..b9e602be4ec36ce21abe5c99c8c3f719659c09ca 100644 (file)
--- a/openwrt/target/linux/aruba-2.6/patches/000-aruba.patch
+++ b/openwrt/target/linux/aruba-2.6/patches/000-aruba.patch
@@ -45,7 +45,7 @@ diff -Nur linux-2.6.17/arch/mips/aruba/Makefile linux-2.6.17-owrt/arch/mips/arub
 +# .S.o:
 +#     $(CC) $(CFLAGS) -c $< -o $*.o
 +
-+obj-y  := prom.o setup.o idtIRQ.o irq.o time.o flash_lock.o
++obj-y  := prom.o setup.o irq.o time.o flash_lock.o
 +obj-$(CONFIG_SERIAL_8250)             += serial.o
 +
 +subdir-y         += nvram
@@ -921,7 +921,7 @@ diff -Nur linux-2.6.17/arch/mips/aruba/setup.c linux-2.6.17-owrt/arch/mips/aruba
 diff -Nur linux-2.6.17/arch/mips/aruba/time.c linux-2.6.17-owrt/arch/mips/aruba/time.c
 --- linux-2.6.17/arch/mips/aruba/time.c        1970-01-01 01:00:00.000000000 +0100
 +++ linux-2.6.17-owrt/arch/mips/aruba/time.c   2006-06-18 12:44:28.000000000 +0200
-@@ -0,0 +1,108 @@
+@@ -0,0 +1,110 @@
 +/**************************************************************************
 + *
 + *  BRIEF MODULE DESCRIPTION
@@ -1022,8 +1022,10 @@ diff -Nur linux-2.6.17/arch/mips/aruba/time.c linux-2.6.17-owrt/arch/mips/aruba/
 +
 +}
 +
-+asmlinkage void aruba_timer_interrupt(int irq, struct pt_regs *regs)
++asmlinkage void aruba_timer_interrupt(struct pt_regs *regs)
 +{
++      int irq = MIPS_CPU_TIMER_IRQ;
++
 +      irq_enter();
 +      kstat_this_cpu.irqs[irq]++;
 +

diff --git a/openwrt/target/linux/aruba-2.6/patches/002-irq.patch b/openwrt/target/linux/aruba-2.6/patches/002-irq.patch
index 8faffaf9bbb953eaae6823dde65499e97212a564..6ddc154ac95ad082d59a2b85e3c3ce922f2dd7e7 100644 (file)
--- a/openwrt/target/linux/aruba-2.6/patches/002-irq.patch
+++ b/openwrt/target/linux/aruba-2.6/patches/002-irq.patch
@@ -1,98 +1,7 @@
-diff -Nur linux-2.6.15/arch/mips/aruba/idtIRQ.S linux-2.6.15-openwrt/arch/mips/aruba/idtIRQ.S
---- linux-2.6.15/arch/mips/aruba/idtIRQ.S      1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.15-openwrt/arch/mips/aruba/idtIRQ.S      2006-01-10 00:32:32.000000000 +0100
-@@ -0,0 +1,87 @@
-+/**************************************************************************
-+ *
-+ *  BRIEF MODULE DESCRIPTION
-+ *     Intterrupt dispatcher code for IDT boards
-+ *
-+ *  Copyright 2004 IDT Inc. (rischelp@idt.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.
-+ *
-+ *
-+ **************************************************************************
-+ * May 2004 rkt, neb
-+ *
-+ * Initial Release
-+ *
-+ * 
-+ *
-+ **************************************************************************
-+ */
-+              
-+      
-+#include <asm/asm.h>
-+#include <asm/mipsregs.h>
-+#include <asm/regdef.h>
-+#include <asm/stackframe.h>
-+
-+      .text
-+      .set    noreorder
-+      .set    noat
-+      .align  5
-+      NESTED(idtIRQ, PT_SIZE, sp)
-+      .set noat
-+      SAVE_ALL
-+      CLI
-+
-+      .set    at
-+      .set    noreorder
-+
-+      /* Get the pending interrupts */
-+      mfc0    t0, CP0_CAUSE
-+      nop
-+                       
-+      /* Isolate the allowed ones by anding the irq mask */
-+      mfc0    t2, CP0_STATUS
-+      move    a1, sp          /* need a nop here, hence we anticipate */
-+      andi    t0, CAUSEF_IP
-+      and     t0, t2
-+                                                                
-+      /* check for r4k counter/timer IRQ. */
-+      
-+      andi    t1, t0, CAUSEF_IP7
-+      beqz    t1, 1f
-+      nop
-+
-+      jal     aruba_timer_interrupt   
-+
-+      li      a0, 7
-+
-+      j       ret_from_irq
-+      nop
-+1:
-+      jal     aruba_irqdispatch
-+      move    a0, t0
-+      j       ret_from_irq
-+      nop
-+
-+      END(idtIRQ)
-+
-+
-diff -Nur linux-2.6.15/arch/mips/aruba/irq.c linux-2.6.15-openwrt/arch/mips/aruba/irq.c
---- linux-2.6.15/arch/mips/aruba/irq.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.15-openwrt/arch/mips/aruba/irq.c 2006-01-10 00:32:32.000000000 +0100
-@@ -0,0 +1,429 @@
+diff -Nur linux-2.6.17/arch/mips/aruba/irq.c linux-2.6.17-openwrt/arch/mips/aruba/irq.c
+--- linux-2.6.17/arch/mips/aruba/irq.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.17-openwrt/arch/mips/aruba/irq.c 2006-01-10 00:32:32.000000000 +0100
+@@ -0,0 +1,433 @@
 +/**************************************************************************
 + *
 + *  BRIEF MODULE DESCRIPTION
@@ -164,7 +73,7 @@ diff -Nur linux-2.6.15/arch/mips/aruba/irq.c linux-2.6.15-openwrt/arch/mips/arub
 +#define DPRINTK(fmt, args...)
 +#endif
 +
-+extern asmlinkage void idtIRQ(void);
++extern void aruba_timer_interrupt(struct pt_regs *regs);
 +static unsigned int startup_irq(unsigned int irq);
 +static void end_irq(unsigned int irq_nr);
 +static void mask_and_ack_irq(unsigned int irq_nr);
@@ -436,7 +345,6 @@ diff -Nur linux-2.6.15/arch/mips/aruba/irq.c linux-2.6.15-openwrt/arch/mips/arub
 +      int i;
 +      printk("Initializing IRQ's: %d out of %d\n", RC32434_NR_IRQS, NR_IRQS);
 +      memset(irq_desc, 0, sizeof(irq_desc));
-+      set_except_vector(0, idtIRQ);
 +
 +      set_c0_status(0xFF00);
 +
@@ -450,10 +358,15 @@ diff -Nur linux-2.6.15/arch/mips/aruba/irq.c linux-2.6.15-openwrt/arch/mips/arub
 +}
 +
 +/* Main Interrupt dispatcher */
-+void aruba_irqdispatch(unsigned long cp0_cause, struct pt_regs *regs)
++
++void plat_irq_dispatch(struct pt_regs *regs)
 +{
 +      unsigned int pend, group, ip;
 +      volatile unsigned int *addr;
++      unsigned long cp0_cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;
++
++      if (cp0_cause & CAUSEF_IP7)
++              aruba_timer_interrupt(regs);
 +
 +      if(cp0_cause == 0) {
 +              printk("INTERRUPT(S) FIRED WHILE MASKED\n");