[linux-cirrus] Re: Building Nucleusys tool chain on the target
- From: "Bhushan Kolarkar" <Bhushan.Kolarkar@xxxxxxx>
- To: linux-cirrus@xxxxxxxxxxxxx
- Date: Sat, 21 May 2005 15:00:49 +0530
Hi Yann
Thanks very much I was doing mistake by setting
Initramfs source file(s) (INITRAMFS_SOURCE) [] (NEW) this configuration as Y and
Build was taking it as file name
It should be left Empty when no INITram support is required.
Am I right.
I just pressed ENTER and now it is building.
Thanks and regards
Bhushan
|---------+--------------------------------->
| | "Yann Poupet" |
| | <yann.poupet@xxxxxxx> |
| | Sent by: |
| | linux-cirrus-bounce@fr|
| | eelists.org |
| | |
| | |
| | 05/25/2005 02:14 PM |
| | Please respond to |
| | linux-cirrus |
| | |
|---------+--------------------------------->
>------------------------------------------------------------------------------------------------------------------------------|
|
|
| To: linux-cirrus@xxxxxxxxxxxxx
|
| cc:
|
| Subject: [linux-cirrus] Re: Building Nucleusys tool chain on the
target |
>------------------------------------------------------------------------------------------------------------------------------|
Hi Bhushan,
What do you have in you kernel configuration for CONFIG_INITRAMFS_SOURCE ?
If you can't find it in the configuration utility menu, you can try
grep CONFIG_INITRAMFS_SOURCE .config
at the top level of your kernel dir
Regards
Yann
Selon Bhushan Kolarkar <Bhushan.Kolarkar@xxxxxxx>:
> Hi All,
> I am trying to build Linux-2.6.11.7 kernel for arm i have configured the
> kernel
> and trying to build I am getting following Error
>
> CHK usr/initramfs_list
> /home/white/arm/arm-linux/linux-2.6.11.7/scripts/gen_initramfs_list.sh:
> Cannot
> open 'y'
> make[1]: *** [usr/initramfs_list] Error 1
> make: *** [usr] Error 2
> Can some one suggest how to fix this,
> Your suggestions will be of great help,
>
> Thanks and Regards
> Bhushan Kolarkar
>
>
>
> |---------+--------------------------------->
> | | "yann poupet" |
> | | <yann.poupet@xxxxxxx> |
> | | Sent by: |
> | | linux-cirrus-bounce@fr|
> | | eelists.org |
> | | |
> | | |
> | | 05/25/2005 12:08 PM |
> | | Please respond to |
> | | linux-cirrus |
> | | |
> |---------+--------------------------------->
>
>
>------------------------------------------------------------------------------------------------------------------------------|
> |
> |
> | To: Bhushan.Kolarkar@xxxxxxx, linux-cirrus@xxxxxxxxxxxxx
> |
> | cc:
> |
> | Subject: [linux-cirrus] Re: Building Nucleusys tool chain on the
> target |
>
>
>------------------------------------------------------------------------------------------------------------------------------|
>
>
>
>
> Hi,
>
> I've just checked, the patch is here :
> http://yann.poupet.free.fr/ep93xx/linux-2.6.11.7-ep93xx-eb.patch
>
> If you haven't found the patch, that may be the problem if it has not
> been applied.
> But maybe you problem comes from something else. I can see it is ramfs
> related, and I have never tried to use ramfs.
> Having a quick look at the file gen_initramfs_list.sh which seems to be
> the source of the problem, I can see that this error message is :
>
> echo " $0: Cannot open '$cpio_source'"
>
> So, your cpio_source is certainly declared as 'y', which is certainly
> not a valid cpio_source.
>
> I send you the patch attached with this email.
>
> Regards
>
> Yann
>
> Bhushan Kolarkar wrote:
>
> >Hi Yann,
> >
> >I have down loaded the linux-2.6.11.7
> >from http://yann.poupet.free.fr/ep93xx/ but could not find the patch
> >linux-2.6.11.7-ep93xx-eb.patch you mentaioned in the link.
> >I configured the kernel and tried building
> >I am getting following error
> > CHK usr/initramfs_list
> > /home/white/arm/arm-linux/linux-2.6.11.7/scripts/gen_initramfs_list.sh:
> Cannot
> >open 'y'
> >make[1]: *** [usr/initramfs_list] Error 1
> >what could be the problem
> >Your suggestion would be of great help,
> >Thanks and regards,
> >Bhushan Kolarkar
> >
> >
> >
> >|---------+--------------------------------->
> >| | "yann poupet" |
> >| | <yann.poupet@xxxxxxx> |
> >| | Sent by: |
> >| | linux-cirrus-bounce@fr|
> >| | eelists.org |
> >| | |
> >| | |
> >| | 05/24/2005 11:23 PM |
> >| | Please respond to |
> >| | linux-cirrus |
> >| | |
> >|---------+--------------------------------->
> >
>
>------------------------------------------------------------------------------------------------------------------------------|
>
> > |
> |
> > | To: linux-cirrus@xxxxxxxxxxxxx
> |
> > | cc:
> |
> > | Subject: [linux-cirrus] Re: Building Nucleusys tool chain on the
> target |
> >
>
>------------------------------------------------------------------------------------------------------------------------------|
>
> >
> >
> >
> >
> >
> >
> >
> >>I've posted on my personnal website a quick-made howto about how I got it
> >>working.
> >>
> >>http://yann.poupet.free.fr/ep93xx/
> >>
> >>The links in the second part are broken (the scripts and patches) because I
> >>don't have access to the file right now. I'll put them on the website
> tonight
> >>when I'm back home.
> >>
> >>
> >>
> >>
> >>
> >
> >Done, script & patches available.
> >
> >Feel free to ask if something goes wrong.
> >
> >Regards
> >
> >Yann
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
> diff -urN linux-2.6.11.7/arch/arm/kernel/entry-armv.S
> linux-2.6.11.7-eb/arch/arm/kernel/entry-armv.S
> --- linux-2.6.11.7/arch/arm/kernel/entry-armv.S 2005-04-07
> 20:57:28.000000000 +0200
> +++ linux-2.6.11.7-eb/arch/arm/kernel/entry-armv.S 2005-05-12
> 20:02:14.000000000 +0200
> @@ -188,6 +188,12 @@
> @
> @ r0 - instruction
> @
> +#ifdef CONFIG_EP93XX_CRUNCH
> + mov r0, sp
> + bl crunch_opcode
> + cmp r0, #1
> + beq 1f
> +#endif
> ldr r0, [r2, #-4]
> adr r9, 1f
> bl call_fpe
> @@ -353,6 +359,15 @@
> tst r3, #PSR_T_BIT @
> Thumb
> mode?
> bne fpundefinstr @
> ignore FP
> sub r4, r2, #4
> +#ifdef CONFIG_EP93XX_CRUNCH
> +@ bl crunch_in
> + mov r0, sp
> + bl crunch_opcode
> +@ bl crunch_out
> + cmp r0, #1
> + beq ret_from_exception
> +#endif
> +@ bl crunch_out
>
> @
> @ fall through to the emulation code, which returns using r9 if
> @@ -476,6 +491,7 @@
> * This is the return code to user mode for abort handlers
> */
> ENTRY(ret_from_exception)
> +@ bl crunch_out2
> get_thread_info tsk
> mov why, #0
> b ret_to_user
> diff -urN linux-2.6.11.7/arch/arm/kernel/setup.c
> linux-2.6.11.7-eb/arch/arm/kernel/setup.c
> --- linux-2.6.11.7/arch/arm/kernel/setup.c 2005-04-07
> 20:57:42.000000000 +0200
> +++ linux-2.6.11.7-eb/arch/arm/kernel/setup.c 2005-05-12
> 20:03:40.000000000 +0200
> @@ -314,6 +314,9 @@
> sprintf(system_utsname.machine, "%s%c", list->arch_name,
> ENDIANNESS);
> sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS);
> elf_hwcap = list->elf_hwcap;
> +#ifdef CONFIG_EP93XX_CRUNCH
> + elf_hwcap |= HWCAP_CRUNCH;
> +#endif
>
> cpu_proc_init();
> }
> @@ -756,6 +759,7 @@
> "vfp",
> "edsp",
> "java",
> + "crunch",
> NULL
> };
>
> diff -urN linux-2.6.11.7/arch/arm/mach-ep93xx/crunch.c
> linux-2.6.11.7-eb/arch/arm/mach-ep93xx/crunch.c
> --- linux-2.6.11.7/arch/arm/mach-ep93xx/crunch.c 1970-01-01
> 01:00:00.000000000 +0100
> +++ linux-2.6.11.7-eb/arch/arm/mach-ep93xx/crunch.c 2005-05-15
> 22:32:52.000000000 +0200
> @@ -0,0 +1,343 @@
> +/*
> + * Cirrus MaverickCrunch support
> + *
> + * Copyright (c) 2003 Petko Manolov <petkan@xxxxxxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License
> + * version 2 as published by the Free Software Foundation;
> + */
> +
> +#include <linux/sched.h>
> +#include <linux/init.h>
> +#include <asm/io.h>
> +#include <asm/arch/crunch.h>
> +
> +unsigned int read_dspsc_low(void)
> +{
> + int res;
> +
> + asm volatile (
> + "cdp p4, 1, c15, c0, c0, 7\n\t" // "cfmv32sc
> mvdx15, dspsc\n\t"
> + "mrc p5, 0, %0, c15, c0, 0" // "cfmvr64l %0,
> mvdx15"
> + :"=r" (res)
> + :
> + :"memory");
> +
> + return res;
> +}
> +
> +unsigned int read_dspsc_high(void)
> +{
> + int res;
> +
> + asm volatile (
> + "cdp p4, 1, c15, c0, c0, 7\n\t" // "cfmv32sc
> mvdx15, dspsc\n\t"
> + "mrc p5, 0, %0, c15, c0, 1" // "cfmvr64h %0,
> mvdx15"
> + :"=r" (res)
> + :
> + :"memory");
> +
> + return res;
> +}
> +
> +void write_dspsc(unsigned int dspsc)
> +{
> + asm volatile (
> + "mcr p5, 0, %0, c15, c0, 0\n\t" // "cfmv64lr
> mvdx15, %0\n\t"
> + "cdp p4, 2, c15, c0, c0, 7" // "cfmvsc32
> dspsc,
> mvdx15"
> + :
> + :"r" (dspsc), "rN"(-1)
> + :"memory");
> +}
> +
> +void crunch_init(void)
> +{
> + write_dspsc(CRUNCH_INIT);
> + current->flags |= PF_USEDCRUNCH;
> +}
> +
> +/*
> + * had to do it this way since "clf(); cli();" takes longer
> + */
> +static inline void clear_fiq_irq(void)
> +{
> + int cpsr;
> +
> + asm volatile (
> + "mrs %0, CPSR\n\t"
> + "orr %0, %0, #192\n\t"
> + "msr CPSR_c, %0"
> + :"=r" (cpsr)
> + :
> + :"memory");
> +}
> +
> +/*
> + * had to do it this way since "stf(); sti();" takes (twice) longer
> + */
> +
> +static inline void restore_fiq_irq(void)
> +{
> + int cpsr;
> +
> + asm volatile (
> + "mrs %0, CPSR\n\t"
> + "bic %0, %0, #192\n\t"
> + "msr CPSR_c, %0"
> + :"=r" (cpsr)
> + :
> + :"memory");
> +}
> +
> +#ifdef CONFIG_EP93XX_CRUNCH_ACC
> +static inline void save_accumulators(struct task_struct *tsk)
> +{
> + int tmp;
> + struct fp_crunch_struct *fp = &tsk->thread_info->fpstate.crunch;
> +
> + /*
> + * clear the IRQ & FIQ to avoid some of the bugs in the errata
> + */
> + clear_fiq_irq();
> +
> + asm volatile (
> + "cdp p4, 1, c0, c0, c0, 2\n\t" // "cfmv32al
> mvfx0, mvax0\n\t"
> + "stc p5, c0, [%0], #4\n\t" // "cfstr32
> mvfx0,
> [%0], 4\n\t"
> + "cdp p4, 1, c1, c0, c0, 3\n\t" // "cfmv32am
> mvfx1, mvax0\n\t"
> + "stc p5, c1, [%0], #4\n\t" // "cfstr32
> mvfx1,
> [%0], 4\n\t"
> + "cdp p4, 1, c2, c0, c0, 4\n\t" // "cfmv32ah
> mvfx2, mvax0\n\t"
> + "stc p5, c2, [%0], #4\n\t" // "cfstr32
> mvfx2,
> [%0], 4\n\t"
> + "cdp p4, 1, c3, c1, c0, 2\n\t" // "cfmv32al
> mvfx3, mvax1\n\t"
> + "stc p5, c3, [%0], #4\n\t" // "cfstr32
> mvfx3,
> [%0], 4\n\t"
> + "cdp p4, 1, c4, c1, c0, 3\n\t" // "cfmv32am
> mvfx4, mvax1\n\t"
> + "stc p5, c4, [%0], #4\n\t" // "cfstr32
> mvfx4,
> [%0], 4\n\t"
> + "cdp p4, 1, c5, c1, c0, 4\n\t" // "cfmv32ah
> mvfx5, mvax1\n\t"
> + "stc p5, c5, [%0], #4\n\t" // "cfstr32
> mvfx5,
> [%0], 4\n\t"
> + "cdp p4, 1, c6, c2, c0, 2\n\t" // "cfmv32al
> mvfx6, mvax2\n\t"
> + "stc p5, c6, [%0], #4\n\t" // "cfstr32
> mvfx6,
> [%0], 4\n\t"
> + "cdp p4, 1, c7, c2, c0, 3\n\t" // "cfmv32am
> mvfx7, mvax2\n\t"
> + "stc p5, c7, [%0], #4\n\t" // "cfstr32
> mvfx7,
> [%0], 4\n\t"
> + "cdp p4, 1, c8, c2, c0, 4\n\t" // "cfmv32ah
> mvfx8, mvax2\n\t"
> + "stc p5, c8, [%0], #4\n\t" // "cfstr32
> mvfx8,
> [%0], 4\n\t"
> + "cdp p4, 1, c9, c3, c0, 2\n\t" // "cfmv32al
> mvfx9, mvax3\n\t"
> + "stc p5, c9, [%0], #4\n\t" // "cfstr32
> mvfx9,
> [%0], 4\n\t"
> + "cdp p4, 1, c10, c3, c0, 3\n\t" // "cfmv32am
> mvfx10, mvax3\n\t"
> + "stc p5,c10, [%0], #4\n\t" // "cfstr32
> mvfx10,
> [%0], 4\n\t"
> + "cdp p4, 1, c11, c3, c0, 4\n\t" // "cfmv32ah
> mvfx11, mvax3\n\t"
> + "stc p5, c11, [%0, #0]" //
> "cfstr32
> mvfx11, [%0, #0]"
> + :"=&r" (tmp)
> + :"0" (&fp->acc0[0])
> + :"memory");
> +
> + restore_fiq_irq();
> +}
> +#endif
> +
> +#ifdef CONFIG_EP93XX_CRUNCH_ACC
> +static inline void restore_accumulators(struct task_struct *tsk)
> +{
> + int tmp;
> + struct fp_crunch_struct *fp = &tsk->thread_info->fpstate.crunch;
> +
> +
> /*
> +
> * clear the IRQ & FIQ to avoid some of
> the
> bugs in the errata
> +
> */
> +
> clear_fiq_irq();
> +
> +
> asm volatile (
> + "ldc p5, c0, [%0],#4\n\t" // "cfldr32
> mvfx0,
> [%0], 4\n\t"
> + "cdp p4, 2, c0, c0, c0, 2\n\t" // "cfmval32
> mvax0, mvfx0\n\t"
> + "ldc p5, c1, [%0],#4\n\t" // "cfldr32
> mvfx1,
> [%0], 4\n\t"
> + "cdp p4, 2, c0, c1, c0, 3\n\t" // "cfmvam32
> mvax0, mvfx1\n\t"
> + "ldc p5, c2, [%0],#4\n\t" // "cfldr32
> mvfx2,
> [%0], 4\n\t"
> + "cdp p4, 2, c0, c2, c0, 4\n\t" // "cfmvah32
> mvax0, mvfx2\n\t"
> + "ldc p5, c3, [%0],#4\n\t" // "cfldr32
> mvfx3,
> [%0], 4\n\t"
> + "cdp p4, 2, c1, c3, c0, 2\n\t" // "cfmval32
> mvax1, mvfx3\n\t"
> + "ldc p5, c4, [%0],#4\n\t" // "cfldr32
> mvfx4,
> [%0], 4\n\t"
> + "cdp p4, 2, c1, c4, c0, 3\n\t" // "cfmvam32
> mvax1, mvfx4\n\t"
> + "ldc p5, c5, [%0],#4\n\t" // "cfldr32
> mvfx5,
> [%0], 4\n\t"
> + "cdp p4, 2, c1, c5, c0, 4\n\t" // "cfmvah32
> mvax1, mvfx5\n\t"
> + "ldc p5, c6, [%0],#4\n\t" // "cfldr32
> mvfx6,
> [%0], 4\n\t"
> + "cdp p4, 2, c2, c6, c0, 2\n\t" // "cfmval32
> mvax2, mvfx6\n\t"
> + "ldc p5, c7, [%0],#4\n\t" // "cfldr32
> mvfx7,
> [%0], 4\n\t"
> + "cdp p4, 2, c2, c7, c0, 3\n\t" // "cfmvam32
> mvax2, mvfx7\n\t"
> + "ldc p5, c8, [%0],#4\n\t" // "cfldr32
> mvfx8,
> [%0], 4\n\t"
> + "cdp p4, 2, c2, c8, c0, 4\n\t" // "cfmvah32
> mvax2, mvfx8\n\t"
> + "ldc p5, c9, [%0],#4\n\t" // "cfldr32
> mvfx9,
> [%0], 4\n\t"
> + "cdp p4, 2, c3, c9, c0, 2\n\t" // "cfmval32
> mvax3, mvfx9\n\t"
> + "ldc p5, c10, [%0],#4\n\t" // "cfldr32
> mvfx10, [%0], 4\n\t"
> + "cdp p4, 2, c3, c10, c0, 3\n\t" // "cfmvam32
> mvax3, mvfx10\n\t"
> + "ldc p5, c11, [%0, #0]\n\t" // "cfldr32
> mvfx11, [%0, #0]\n\t"
> + "cdp p4, 2, c3, c11, c0, 4" // "cfmvah32
> mvax3,
> mvfx11"
> + :"=&r" (tmp)
> + :"0" (&fp->acc0[0])
> + :"memory");
> +
> + restore_fiq_irq();
> +}
> +#endif
> +
> +void save_crunch(struct task_struct *tsk)
> +{
> + int tmp;
> + struct fp_crunch_struct *fp = &tsk->thread_info->fpstate.crunch;
> +
> + asm volatile (
> + "stcl p5, c0, [%0],#8\n\t" // "cfstr64
> mvdx0,
> [%0], 8\n\t"
> + "stcl p5, c1, [%0],#8\n\t" // "cfstr64
> mvdx1,
> [%0], 8\n\t"
> + "stcl p5, c2, [%0],#8\n\t" // "cfstr64
> mvdx2,
> [%0], 8\n\t"
> + "stcl p5, c3, [%0],#8\n\t" // "cfstr64
> mvdx3,
> [%0], 8\n\t"
> + "stcl p5, c4, [%0],#8\n\t" // "cfstr64
> mvdx4,
> [%0], 8\n\t"
> + "stcl p5, c5, [%0],#8\n\t" // "cfstr64
> mvdx5,
> [%0], 8\n\t"
> + "stcl p5, c6, [%0],#8\n\t" // "cfstr64
> mvdx6,
> [%0], 8\n\t"
> + "stcl p5, c7, [%0],#8\n\t" // "cfstr64
> mvdx7,
> [%0], 8\n\t"
> + "stcl p5, c8, [%0],#8\n\t" // "cfstr64
> mvdx8,
> [%0], 8\n\t"
> + "stcl p5, c9, [%0],#8\n\t" // "cfstr64
> mvdx9,
> [%0], 8\n\t"
> + "stcl p5, c10, [%0],#8\n\t" // "cfstr64
> mvdx10, [%0], 8\n\t"
> + "stcl p5, c11, [%0],#8\n\t" // "cfstr64
> mvdx11, [%0], 8\n\t"
> + "stcl p5, c12, [%0],#8\n\t" // "cfstr64
> mvdx12, [%0], 8\n\t"
> + "stcl p5, c13, [%0],#8\n\t" // "cfstr64
> mvdx13, [%0], 8\n\t"
> + "stcl p5, c14, [%0],#8\n\t" // "cfstr64
> mvdx14, [%0], 8\n\t"
> + "stcl p5, c15, [%0, #0]\n\t" // "cfstr64
> mvdx15, [%0, #0]\n\t"
> + "cdp p4, 1, c15, c0, c0, 7\n\t" // "cfmv32sc
> mvdx15, dspsc\n\t"
> + "stc p5, c15, [%2, #0]" //
> "cfstr32
> mvfx15, [%2, #0]"
> + :"=&r" (tmp)
> + :"0" (&fp->regs[0]), "r" (&fp->dspsc)
> + :"memory");
> +#ifdef CONFIG_EP93XX_CRUNCH_ACC
> + /*
> + * this call should be made exactly here since it's corrupting
> + * the contents of most crunch registers ;-)
> + */
> + save_accumulators(tsk);
> +#endif
> +}
> +
> +void restore_crunch(struct task_struct *tsk)
> +{
> + int tmp;
> + struct fp_crunch_struct *fp = &tsk->thread_info->fpstate.crunch;
> +#ifdef CONFIG_EP93XX_CRUNCH_ACC
> + /*
> + * same as above, but reversed. if you put the call below the
> 'asm'
> + * code then you'll corrupt the
> + */
> + restore_accumulators(tsk);
> +#endif
> + asm volatile (
> + "ldc p5, c15, [%2, #0]\n\t" // "cfldr32 mvfx15,
> [%2, #0]\n\t"
> + "cdp p4, 2, c15, c0, c0, 7\n\t" // "cfmvsc32
> dspsc, mvdx15\n\t"
> + "ldcl p5, c0, [%0],#8\n\t" // "cfldr64 mvdx0,
> [%0], 8\n\t"
> + "ldcl p5, c1, [%0],#8\n\t" // "cfldr64 mvdx1,
> [%0], 8\n\t"
> + "ldcl p5, c2, [%0],#8\n\t" // "cfldr64 mvdx2,
> [%0], 8\n\t"
> + "ldcl p5, c3, [%0],#8\n\t" // "cfldr64 mvdx3,
> [%0], 8\n\t"
> + "ldcl p5, c4, [%0],#8\n\t" // "cfldr64 mvdx4,
> [%0], 8\n\t"
> + "ldcl p5, c5, [%0],#8\n\t" // "cfldr64 mvdx5,
> [%0], 8\n\t"
> + "ldcl p5, c6, [%0],#8\n\t" // "cfldr64 mvdx6,
> [%0], 8\n\t"
> + "ldcl p5, c7, [%0],#8\n\t" // "cfldr64 mvdx7,
> [%0], 8\n\t"
> + "ldcl p5, c8, [%0],#8\n\t" // "cfldr64 mvdx8,
> [%0], 8\n\t"
> + "ldcl p5, c9, [%0],#8\n\t" // "cfldr64 mvdx9,
> [%0], 8\n\t"
> + "ldcl p5, c10, [%0],#8\n\t" // "cfldr64 mvdx10,
> [%0], 8\n\t"
> + "ldcl p5, c11, [%0],#8\n\t" // "cfldr64 mvdx11,
> [%0], 8\n\t"
> + "ldcl p5, c12, [%0],#8\n\t" // "cfldr64 mvdx12,
> [%0], 8\n\t"
> + "ldcl p5, c13, [%0],#8\n\t" // "cfldr64 mvdx13,
> [%0], 8\n\t"
> + "ldcl p5, c14, [%0],#8\n\t" // "cfldr64 mvdx14,
> [%0], 8\n\t"
> + "ldcl p5, c15, [%0, #0]" //
> "cfldr64
> mvdx15, [%0, #0]"
> + :"=&r" (tmp)
> + :"0" (&fp->regs[0]), "r" (&fp->dspsc)
> + :"memory");
> +}
> +
> +void crunch_exception(int irq, void *dev_id, struct pt_regs *regs)
> +{
> + int sc, opc;
> +
> + send_sig(SIGFPE, current, 1);
> + opc = read_dspsc_high();
> + sc = read_dspsc_low();
> + printk("%s: DSPSC_high=%08x, DSPSC_low=%08x\n", __FUNCTION__,
> opc,
> sc);
> + sc &= ~(1 << 21); /* we recure without this */
> + write_dspsc(sc);
> +}
> +
> +/*
> + * only register ep9312 default FPU handler...
> + */
> +__init int setup_crunch(void)
> +{
> + int res;
> +
> + res = request_irq(CRUNCH_IRQ, crunch_exception, SA_INTERRUPT,
> "FPU", NULL);
> + if (res) {
> + printk("Crunch IRQ (%d) allocation failure\n",
> CRUNCH_IRQ);
> + return res;
> + }
> +
> + return res;
> +}
> +
> +static inline int insn_is_crunch(long insn)
> +{
> + long tmp;
> +
> + tmp = (insn >> 24) & 0x0e;
> + /* cdp, mcr, mrc */
> + if (tmp == 0x0e || tmp == 0x0c) {
> + tmp = (insn >> 8) & 0x0f;
> + if (tmp == 4)
> + return 1;
> + if (tmp == 5)
> + return 1;
> + if (tmp == 6)
> + return 1;
> + }
> +
> + return 0;
> +}
> +
> +int crunch_opcode(struct pt_regs *regs)
> +{
> + long *insn;
> + struct task_struct *tsk = current;
> +
> + insn = (long *) (instruction_pointer(regs) - 4);
> +// printk("insn : %08lx \n", insn);
> + if (!insn_is_crunch(*insn)) {
> + /*
> + * not a crunch instruction, but might be another
> + * (FPA/VFP) floating point one
> + */
> +// printk("No Crunch %08lx \n", insn);
> + return 0;
> + }
> +
> +// printk("Crunch %08lx \n", insn);
> + crunch_enable();
> +// printk("crunch_enable\n");
> + regs->ARM_pc -= 4; /* restart the Crunch instruction
> */
> + if (tsk->flags & PF_USEDCRUNCH) {
> + restore_crunch(tsk);
> + } else {
> + crunch_init();
> + }
> + tsk->flags |= PF_USEDFPU;
> + return 1;
> +}
> +
> +void crunch_in(void)
> +{
> + printk("in !\n");
> +}
> +
> +void crunch_out(void)
> +{
> + printk("out !\n");
> +}
> +
> +void crunch_out2(void)
> +{
> + printk("out2 !\n");
> +}
> +
> +__initcall(setup_crunch);
> diff -urN linux-2.6.11.7/arch/arm/mach-ep93xx/dma_ep93xx.c
> l
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