* Re: [PATCH] 8xx: get_mmu_context() for (very) FEW_CONTEXTS and KERNEL_PREEMPT race/starvation issue
From: Guillaume Autran @ 2005-06-29 21:25 UTC (permalink / raw)
To: Marcelo Tosatti; +Cc: ', linux-ppc-embedded
In-Reply-To: <20050629155445.GA3560@logos.cnet>
[-- Attachment #1: Type: text/plain, Size: 3282 bytes --]
Hi Marcelo,
Marcelo Tosatti wrote:
>Hi Guillaume,
>
>On Wed, Jun 29, 2005 at 11:32:19AM -0400, Guillaume Autran wrote:
>
>
>>Benjamin Herrenschmidt wrote:
>>
>>
>>
>>>On Tue, 2005-06-28 at 09:42 -0400, Guillaume Autran wrote:
>>>
>>>
>>>
>>>
>>>>Hi,
>>>>
>>>>I happen to notice a race condition in the mmu_context code for the 8xx
>>>>with very few context (16 MMU contexts) and kernel preemption enable. It
>>>>is hard to reproduce has it shows only when many processes are
>>>>created/destroy and the system is doing a lot of IRQ processing.
>>>>
>>>>In short, one process is trying to steal a context that is in the
>>>>process of being freed (mm->context == NO_CONTEXT) but not completely
>>>>freed (nr_free_contexts == 0).
>>>>The steal_context() function does not do anything and the process stays
>>>>in the loop forever.
>>>>
>>>>Anyway, I got a patch that fixes this part. Does not seem to affect
>>>>scheduling latency at all.
>>>>
>>>>Comments are appreciated.
>>>>
>>>>
>>>>
>>>>
>>>Your patch seems to do a hell lot more than fixing this race ... What
>>>about just calling preempt_disable() in destroy_context() instead ?
>>>
>>>
>>>
>>>
>>I'm still a bit confused with "kernel preemption". One thing for sure is
>>that disabling kernel preemption does indeed fix my problem.
>>So, my question is, what if a task in the middle of being schedule gets
>>preempted by an IRQ handler, where will this task restart execution ?
>>Back at the beginning of schedule or where it left of ?
>>
>>
>
>Execution is resumed exactly where it has been interrupted.
>
In that case, what happen when a higher priority task steal the context
of the lower priority task after get_mmu_context() but before
set_mmu_context() ?
Then when the lower priority task resumes, its context may no longer be
valid...
Do I get this right ?
>>The idea behind my patch was to get rid of that nr_free_contexts counter
>>that is (I thing) redundant with the context_map.
>>
>>
>
>Apparently its there to avoid the spinlock exactly on !FEW_CONTEXTS machines.
>
>I suppose that what happens is that get_mmu_context() gets preempted after stealing
>a context (so nr_free_contexts = 0), but before setting next_mmu_context to the
>next entry
>
>next_mmu_context = (ctx + 1) & LAST_CONTEXT;
>
>So if the now running higher prio tasks calls switch_mm() (which is likely to happen)
>it loops forever on atomic_dec_if_positive(&nr_free_contexts), while steal_context()
>sees "mm->context == CONTEXT".
>
>I think that you should try "preempt_disable()/preempt_enable" pair at entry and
>exit of get_mmu_context() - I suppose around destroy_context() is not enough (you
>can try that also).
>
>spinlock ends up calling preempt_disable().
>
>
>
I'm going to do like this instead of my previous attempt:
/* Setup new userspace context */
preempt_disable();
get_mmu_context(next);
set_context(next->context, next->pgd);
preempt_enable();
To make sure we don't loose our context in between.
Thanks.
Guillaume.
--
=======================================
Guillaume Autran
Senior Software Engineer
MRV Communications, Inc.
Tel: (978) 952-4932 office
E-mail: gautran@mrv.com
=======================================
[-- Attachment #2: Type: text/html, Size: 4293 bytes --]
^ permalink raw reply
* set_phys_avail() futures question
From: Jon Loeliger @ 2005-06-29 21:14 UTC (permalink / raw)
To: linuxppc-dev@ozlabs.org
Ben (primarily),
I'd like to get your opinion on what the future of
arch/ppc/mm/init.c/set_phys_avail() looks like.
Currently, its job is to traverse the mem_pieces data
and remove a whole series of #ifdef'ed regions of
memory based on configuration options. These regions
are the initrd, the RTAS data, and the AGP special page.
Do you see these regions as being explicitly listed in
the proposed "reserved memory blocks" area of the Flat
Dev Tree header structure?
If so, then they would follow the same conceptual flow
as the ppc64 reservations in the LMB. They would then
be SetPagReserved() and removed from the do_init_bootmem()
regions of memory as well.
Thanks,
jdl
^ permalink raw reply
* Re: [PATCH] 8xx: get_mmu_context() for (very) FEW_CONTEXTS and KERNEL_PREEMPT race/starvation issue
From: Marcelo Tosatti @ 2005-06-29 15:54 UTC (permalink / raw)
To: Guillaume Autran, '; +Cc: linux-ppc-embedded
In-Reply-To: <42C2BF03.9000402@mrv.com>
Hi Guillaume,
On Wed, Jun 29, 2005 at 11:32:19AM -0400, Guillaume Autran wrote:
>
> Benjamin Herrenschmidt wrote:
>
> >On Tue, 2005-06-28 at 09:42 -0400, Guillaume Autran wrote:
> >
> >
> >>Hi,
> >>
> >>I happen to notice a race condition in the mmu_context code for the 8xx
> >>with very few context (16 MMU contexts) and kernel preemption enable. It
> >>is hard to reproduce has it shows only when many processes are
> >>created/destroy and the system is doing a lot of IRQ processing.
> >>
> >>In short, one process is trying to steal a context that is in the
> >>process of being freed (mm->context == NO_CONTEXT) but not completely
> >>freed (nr_free_contexts == 0).
> >>The steal_context() function does not do anything and the process stays
> >>in the loop forever.
> >>
> >>Anyway, I got a patch that fixes this part. Does not seem to affect
> >>scheduling latency at all.
> >>
> >>Comments are appreciated.
> >>
> >>
> >
> >Your patch seems to do a hell lot more than fixing this race ... What
> >about just calling preempt_disable() in destroy_context() instead ?
> >
> >
> I'm still a bit confused with "kernel preemption". One thing for sure is
> that disabling kernel preemption does indeed fix my problem.
> So, my question is, what if a task in the middle of being schedule gets
> preempted by an IRQ handler, where will this task restart execution ?
> Back at the beginning of schedule or where it left of ?
Execution is resumed exactly where it has been interrupted.
> The idea behind my patch was to get rid of that nr_free_contexts counter
> that is (I thing) redundant with the context_map.
Apparently its there to avoid the spinlock exactly on !FEW_CONTEXTS machines.
I suppose that what happens is that get_mmu_context() gets preempted after stealing
a context (so nr_free_contexts = 0), but before setting next_mmu_context to the
next entry
next_mmu_context = (ctx + 1) & LAST_CONTEXT;
So if the now running higher prio tasks calls switch_mm() (which is likely to happen)
it loops forever on atomic_dec_if_positive(&nr_free_contexts), while steal_context()
sees "mm->context == CONTEXT".
I think that you should try "preempt_disable()/preempt_enable" pair at entry and
exit of get_mmu_context() - I suppose around destroy_context() is not enough (you
can try that also).
spinlock ends up calling preempt_disable().
^ permalink raw reply
* Re: include/asm-ppc/atomic.h: fluff in inline assembly code?
From: Frank van Maarseveen @ 2005-06-29 18:36 UTC (permalink / raw)
To: Andreas Schwab; +Cc: linuxppc-dev
In-Reply-To: <jehdfhnnr7.fsf@sykes.suse.de>
On Wed, Jun 29, 2005 at 06:14:52PM +0200, Andreas Schwab wrote:
> Frank van Maarseveen <frankvm@frankvm.com> writes:
>
> > What is the point of all those v->counter arguments?
>
> It tells the compiler that v->counter is changed by the asm.
So it's an optimized alternative for "memory" in the clobber list?
ok, I couldn't find that anywhere in the doc.
But v->counter is not supposed to be accessed directly by the
compiler (i.e. by C code) at all, is it? so it shouldn't matter.
Even if it would be: the counter itself is declared "volatile int"
which basically tells the compiler not to cache it in a register.
--
Frank
^ permalink raw reply
* Re: [PATCH] use correct register names in arch/ppc/kernel/relocate_kernel.S
From: Segher Boessenkool @ 2005-06-29 18:08 UTC (permalink / raw)
To: Olaf Hering; +Cc: Andrew Morton, linuxppc-dev, Eric Biederman
In-Reply-To: <20050629130113.GA30972@suse.de>
> --- linux-2.6.13-rc1.orig/arch/ppc/kernel/relocate_kernel.S
> +++ linux-2.6.13-rc1/arch/ppc/kernel/relocate_kernel.S
> @@ -34,9 +34,9 @@ relocate_new_kernel:
>
> mr r8, r0
> ori r8, r8, MSR_RI|MSR_ME
> - mtspr SRR1, r8
> + mtspr SPRN_SRR1, r8
> addi r8, r4, 1f - relocate_new_kernel
> - mtspr SRR0, r8
> + mtspr SPRN_SRR0, r8
> sync
> rfi
Or just mtsrr0 c.q. mtsrr1.
Segher
^ permalink raw reply
* Re: /sbin/init is not beeing scheduled to run
From: Eugene Surovegin @ 2005-06-29 16:54 UTC (permalink / raw)
To: Chunlei Dong; +Cc: linux-ppc-embedded
In-Reply-To: <b8fbdd1e05062909398f091c1@mail.gmail.com>
On Wed, Jun 29, 2005 at 09:39:55AM -0700, Chunlei Dong wrote:
> Hi,
>
> I am trying to boot the linux 2.6.11.5 in high memory, that means the
> phys memory does not start from 0, but 0x04000000, on ppc440gp ebony
> board. I changed the TLB setting and register settings for bdinfo,
> cmdline. Now it seems ok to run to the end of the process 0. After the
> start_thread() in load_elf_binary(), which loaded the "/sbin/init",
> the cpu becomes idle state, the /sbin/init process(the process 1) is
> never been scheduled to run.
> Anybody encountered this problem or give a hint?
Well, my suggestion is NOT to use such strange configuration and put
memory at 0, you'll save yourself a lot of time.
Theoretically, it should be possible to make Linux work when RAM
isn't at 0 address, but you have to fix many places and this requires
quite deep understanding of Linux and PPC 44x memory management, and,
frankly, you're on your own in this quest :).
--
Eugene
^ permalink raw reply
* Re: 440GX EMAC driver hang?
From: Eugene Surovegin @ 2005-06-29 16:48 UTC (permalink / raw)
To: Scott Coulter; +Cc: linuxppc-embedded
In-Reply-To: <43EB80E07C42E1408726E4905FB96B044402F5@CYBORG3.cyclone.com>
On Wed, Jun 29, 2005 at 09:40:34AM -0400, Scott Coulter wrote:
> Hi,
>
> I am doing a Linux 2.6.11.11 port for a CPCI board with a 440GX
> processor on it. Previously, I had successfully ported 2.6.11.11 to the
> board's predecessor running on a 440GP processor. Due to limitations in
> this version of the PCB, EMAC ports 2 and 3 are not connected. The
> standalone kernel comes up and gets into a BusyBox shell. When I try to
> ifconfig the eth0 interface, the messages "eth0: Link is Up" and "eth0:
> Speed: 100, Full duplex." are displayed and then the target hangs. I
> used the OCOTEA port as a pattern for my 440GP->440GX conversion. The
> PHYs which are connected to EMAC ports 0 and 1 are the same PHYs as on
> the 440GP board (running in RMII mode). I have tried to use the
> function "ocp_remove_one_device" to whack EMAC2 and EMAC3. I am pretty
> sure that the removal worked as I no longer see init messages for those
> EMACs (previously I saw all four devices get initialized). The MAL
> reports that it has "Initialized, 4 tx channels, 4 rx channels." I used
> the function "ibm440gx_set_eth_grp" to force the Ethernets to both group
> 0 and group 1 configurations. So far, nothing has worked. Can anyone
> think of anything obvious that I am missing? I know that the Ethernet
> ports are functional as I used TFTP with our ROM monitor package to
> download the zImage file.
You can try using 4xx NAPI EMAC driver I wrote some time ago.
It can be found at http://kernel.ebshome.net/ (there is a patch and
GIT tree which is kept up to date).
You can enable debug and mail me trace log privately, and maybe I can
help you debug your problem.
--
Eugene
^ permalink raw reply
* [PATCH] ppc32: minor arch/ppc/syslib/xilinx_pic.c cleanups
From: Andrei Konovalov @ 2005-06-29 16:57 UTC (permalink / raw)
To: Matt Porter; +Cc: linuxppc-embedded
[-- Attachment #1: Type: text/plain, Size: 329 bytes --]
For level sensitive interrupts the patch moves unmasking the interrupt behind
acknowledging it. It seems not to change anything in practice (experimented with
the ethernet a little bit), but looks more logical IMHO.
The second hunk removes two lines that do nothing.
Signed-off-by: Andrei Konovalov <akonovalov@ru.mvista.com>
[-- Attachment #2: xilinx_pic_cleanup.20050629.diff --]
[-- Type: text/plain, Size: 763 bytes --]
diff -Nupr a/arch/ppc/syslib/xilinx_pic.c b/arch/ppc/syslib/xilinx_pic.c
--- a/arch/ppc/syslib/xilinx_pic.c 2005-06-23 15:32:18.000000000 +0400
+++ b/arch/ppc/syslib/xilinx_pic.c 2005-06-29 18:28:44.000000000 +0400
@@ -71,10 +71,11 @@ xilinx_intc_end(unsigned int irq)
pr_debug("end: %d\n", irq);
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
- intc_out_be32(intc + SIE, mask);
/* ack level sensitive intr */
if (irq_desc[irq].status & IRQ_LEVEL)
intc_out_be32(intc + IAR, mask);
+ /* unmask the interrupt */
+ intc_out_be32(intc + SIE, mask);
}
}
@@ -101,8 +102,6 @@ xilinx_pic_get_irq(struct pt_regs *regs)
*/
irq = intc_in_be32(intc + IVR);
- if (irq != -1)
- irq = irq;
pr_debug("get_irq: %d\n", irq);
^ permalink raw reply
* /sbin/init is not beeing scheduled to run
From: Chunlei Dong @ 2005-06-29 16:39 UTC (permalink / raw)
To: linux-ppc-embedded
Hi,=20
I am trying to boot the linux 2.6.11.5 in high memory, that means the
phys memory does not start from 0, but 0x04000000, on ppc440gp ebony
board. I changed the TLB setting and register settings for bdinfo,
cmdline. Now it seems ok to run to the end of the process 0. After the
start_thread() in load_elf_binary(), which loaded the "/sbin/init",
the cpu becomes idle state, the /sbin/init process(the process 1) is
never been scheduled to run.
Anybody encountered this problem or give a hint?
Best regards
- Charlie
^ permalink raw reply
* Re: (no subject)
From: evilninja @ 2005-06-29 16:22 UTC (permalink / raw)
To: 董晓凡; +Cc: linuxppc-dev
In-Reply-To: <20050629065224.E933C67A77@ozlabs.org>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
董晓凡 schrieb:
>
>
> Hi，everybody.Recently,I focus on kernel 2.6.10,I want to migrate it to
> mpc8260.
>
> But,I can not compile it successfully when I choose fcc .And it seems some
> wrong with cpm2_immap.h.
mind to show us the compile errors?
Christian.
PS: and *please* don't send HTML only messages.
- --
BOFH excuse #147:
Party-bug in the Aloha protocol.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.5 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iD8DBQFCwsrXC/PVm5+NVoYRApx4AKDmCtqASeh3uRzoC1nO94k4LFlTmgCeKOc2
vbEH4lwXt/zZV+JhA0zwOxc=
=pk9/
-----END PGP SIGNATURE-----
^ permalink raw reply
* Re: include/asm-ppc/atomic.h: fluff in inline assembly code?
From: Andreas Schwab @ 2005-06-29 16:14 UTC (permalink / raw)
To: Frank van Maarseveen; +Cc: linuxppc-dev
In-Reply-To: <20050629145013.GA21494@janus>
Frank van Maarseveen <frankvm@frankvm.com> writes:
> What is the point of all those v->counter arguments?
It tells the compiler that v->counter is changed by the asm.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
^ permalink raw reply
* PowerPC bn_div_words routine rewrite
From: David Ho @ 2005-06-29 15:50 UTC (permalink / raw)
To: openssl-dev, linux-ppc-embedded
Hi all,
This is a rewrite of the bn_div_words routine for the PowerPC arch, tested
on a MPC8xx processor.
I initially thought there is maybe a small mistake in the code that
requires a one-liner change but it turns out I have to redo the routine.
I guess this routine is not called very often as I see that most other
routines are hand-crafted, whereas this routine is compiled from a C
function that apparently has not gone through a whole lot of testing.
I wrote a C function to confirm correctness of the code.
unsigned long div_words (unsigned long h,
unsigned long l,
unsigned long d)
{
unsigned long i_h; /* intermediate dividend */
unsigned long i_q; /* quotient of i_h/d */
unsigned long i_r; /* remainder of i_h/d */
unsigned long i_cntr;
unsigned long i_carry;
unsigned long ret_q; /* return quotient */
/* cannot divide by zero */
if (d == 0) return 0xffffffff;
/* do simple 32-bit divide */
if (h == 0) return l/d;
i_q = h/d;
i_r = h - (i_q*d);
ret_q = i_q;
i_cntr = 32;
while (i_cntr--)
{
i_carry = (l & 0x80000000) ? 1:0;
l = l << 1;
i_h = (i_r << 1) | i_carry;
i_q = i_h/d;
i_r = i_h - (i_q*d);
ret_q = (ret_q << 1) | i_q;
}
return ret_q;
}
Then I handcrafted the routine in PPC assembly.
The result is a 26 line assembly that is easy to understand and predictable
as opposed to a 81liner that I am still trying to decipher...
If anyone is interested in incorporating this routine to the openssl code
I'll be happy to assist.
At this point I think I will be taking a bit of a break from this 3 day
debugging/fixing marathon.
Regards,
David Ho
#
# Handcrafted version of bn_div_words
#
# r3 = h
# r4 = l
# r5 = d
cmplwi 0,r5,0 # compare r5 and 0
bc BO_IF_NOT,CR0_EQ,.Lppcasm_div1 # proceed if d!=0
li r3,-1 # d=0 return -1
bclr BO_ALWAYS,CR0_LT
.Lppcasm_div1:
cmplwi 0,r3,0 # compare r3 and 0
bc BO_IF_NOT,CR0_EQ,.Lppcasm_div2 # proceed if h != 0
divwu r3,r4,r5 # ret_q = l/d
bclr BO_ALWAYS,CR0_LT # return result in r3
.Lppcasm_div2:
divwu r9,r3,r5 # i_q = h/d
mullw r10,r9,r5 # i_r = h - (i_q*d)
subf r10,r10,r3
mr r3,r9 # req_q = i_q
.Lppcasm_set_ctr:
li r12,32 # ctr = bitsizeof(d)
mtctr r12
.Lppcasm_div_loop:
addc r4,r4,r4 # l = l << 1 -> i_carry
adde r11,r10,r10 # i_h = (i_r << 1) | i_carry
divwu r9,r11,r5 # i_q = i_h/d
mullw r10,r9,r5 # i_r = i_h - (i_q*d)
subf r10,r10,r11
add r3,r3,r3 # ret_q = ret_q << 1 | i_q
add r3,r3,r9
bc BO_dCTR_NZERO,CR0_EQ,.Lppcasm_div_loop
.Lppc_div_end:
bclr BO_ALWAYS,CR0_LT # return result in r3
.long 0x00000000
^ permalink raw reply
* include/asm-ppc/atomic.h: fluff in inline assembly code?
From: Frank van Maarseveen @ 2005-06-29 14:50 UTC (permalink / raw)
To: linuxppc-dev
Does anyone know why there are often excess arguments in asm() here?
For example,
static __inline__ void atomic_add(int a, atomic_t *v)
{
int t;
__asm__ __volatile__(
"1: lwarx %0,0,%3 # atomic_add\n\
add %0,%2,%0\n"
PPC405_ERR77(0,%3)
" stwcx. %0,0,%3 \n\
bne- 1b"
: "=&r" (t), "=m" (v->counter)
: "r" (a), "r" (&v->counter), "m" (v->counter)
: "cc");
}
seems equivalent to
static __inline__ void atomic_add(int a, atomic_t *v)
{
int t;
__asm__ __volatile__(
"1: lwarx %0,0,%2 # atomic_add\n\
add %0,%1,%0\n"
PPC405_ERR77(0,%2)
" stwcx. %0,0,%2 \n\
bne- 1b"
: "=&r" (t)
: "r" (a), "r" (&v->counter)
: "cc");
}
What is the point of all those v->counter arguments?
--
Frank
^ permalink raw reply
* Re: [PATCH] 8xx: get_mmu_context() for (very) FEW_CONTEXTS and KERNEL_PREEMPT race/starvation issue
From: Guillaume Autran @ 2005-06-29 15:32 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: linux-ppc-embedded
In-Reply-To: <1120018530.5133.241.camel@gaston>
[-- Attachment #1: Type: text/plain, Size: 1646 bytes --]
Benjamin Herrenschmidt wrote:
>On Tue, 2005-06-28 at 09:42 -0400, Guillaume Autran wrote:
>
>
>>Hi,
>>
>>I happen to notice a race condition in the mmu_context code for the 8xx
>>with very few context (16 MMU contexts) and kernel preemption enable. It
>>is hard to reproduce has it shows only when many processes are
>>created/destroy and the system is doing a lot of IRQ processing.
>>
>>In short, one process is trying to steal a context that is in the
>>process of being freed (mm->context == NO_CONTEXT) but not completely
>>freed (nr_free_contexts == 0).
>>The steal_context() function does not do anything and the process stays
>>in the loop forever.
>>
>>Anyway, I got a patch that fixes this part. Does not seem to affect
>>scheduling latency at all.
>>
>>Comments are appreciated.
>>
>>
>
>Your patch seems to do a hell lot more than fixing this race ... What
>about just calling preempt_disable() in destroy_context() instead ?
>
>
I'm still a bit confused with "kernel preemption". One thing for sure is
that disabling kernel preemption does indeed fix my problem.
So, my question is, what if a task in the middle of being schedule gets
preempted by an IRQ handler, where will this task restart execution ?
Back at the beginning of schedule or where it left of ?
The idea behind my patch was to get rid of that nr_free_contexts counter
that is (I thing) redundant with the context_map.
Regards,
Guillaume.
--
=======================================
Guillaume Autran
Senior Software Engineer
MRV Communications, Inc.
Tel: (978) 952-4932 office
E-mail: gautran@mrv.com
=======================================
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^ permalink raw reply
* 440GX EMAC driver hang?
From: Scott Coulter @ 2005-06-29 13:40 UTC (permalink / raw)
To: linuxppc-embedded
[-- Attachment #1: Type: text/plain, Size: 1768 bytes --]
Hi,
I am doing a Linux 2.6.11.11 port for a CPCI board with a 440GX
processor on it. Previously, I had successfully ported 2.6.11.11 to the
board's predecessor running on a 440GP processor. Due to limitations in
this version of the PCB, EMAC ports 2 and 3 are not connected. The
standalone kernel comes up and gets into a BusyBox shell. When I try to
ifconfig the eth0 interface, the messages "eth0: Link is Up" and "eth0:
Speed: 100, Full duplex." are displayed and then the target hangs. I
used the OCOTEA port as a pattern for my 440GP->440GX conversion. The
PHYs which are connected to EMAC ports 0 and 1 are the same PHYs as on
the 440GP board (running in RMII mode). I have tried to use the
function "ocp_remove_one_device" to whack EMAC2 and EMAC3. I am pretty
sure that the removal worked as I no longer see init messages for those
EMACs (previously I saw all four devices get initialized). The MAL
reports that it has "Initialized, 4 tx channels, 4 rx channels." I used
the function "ibm440gx_set_eth_grp" to force the Ethernets to both group
0 and group 1 configurations. So far, nothing has worked. Can anyone
think of anything obvious that I am missing? I know that the Ethernet
ports are functional as I used TFTP with our ROM monitor package to
download the zImage file.
Thanks,
Scott
___________________________________________________________________
Scott N. Coulter
Senior Software Engineer
Cyclone Microsystems
370 James Street Phone: 203.786.5536 ext. 118
New Haven, CT 06513-3051 Email: scott.coulter@cyclone.com
U.S.A. Web: http://www.cyclone.com
___________________________________________________________________
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^ permalink raw reply
* [PATCH] use correct register names in arch/ppc/kernel/relocate_kernel.S
From: Olaf Hering @ 2005-06-29 13:01 UTC (permalink / raw)
To: Andrew Morton, linuxppc-dev; +Cc: Eric Biederman
CONFIG_KEXEC=y doesnt work:
arch/ppc/kernel/relocate_kernel.S:37: Error: unsupported relocation against SRR1
arch/ppc/kernel/relocate_kernel.S:39: Error: unsupported relocation against SRR0
Signed-off-by: Olaf Hering <olh@suse.de>
Index: linux-2.6.13-rc1/arch/ppc/kernel/relocate_kernel.S
===================================================================
--- linux-2.6.13-rc1.orig/arch/ppc/kernel/relocate_kernel.S
+++ linux-2.6.13-rc1/arch/ppc/kernel/relocate_kernel.S
@@ -34,9 +34,9 @@ relocate_new_kernel:
mr r8, r0
ori r8, r8, MSR_RI|MSR_ME
- mtspr SRR1, r8
+ mtspr SPRN_SRR1, r8
addi r8, r4, 1f - relocate_new_kernel
- mtspr SRR0, r8
+ mtspr SPRN_SRR0, r8
sync
rfi
^ permalink raw reply
* Xilinx ppc405 debugging
From: KylongMu @ 2005-06-29 12:04 UTC (permalink / raw)
To: Linuxppc-embedded
In-Reply-To: <OFA98242DA.3B8BFBE9-ONC125702F.002D06C8-C125702F.002D7592@ifm-electronic.com>
Dear Team,
I'm using the Xilinx ppc405, developed code with Platform Studio
SDK,
When I debug the code , the IDE halt on "print" function, I guess this maybe
need a virtual terminal to show the message need print, but I can't find
the solution, who have solved same problem, please help me.
In PS SDK use any ppc405 example with "connect hw sim" mode will
show this problem, but use any microblaze example, the PS SDK work well.
Cordially,
KylongMu
^ permalink raw reply
* Re: [PATCH] ppc32: add Freescale MPC885ADS board support - new MPC885ADS patch plus updated MPC86xADS
From: Andrei Konovalov @ 2005-06-29 10:03 UTC (permalink / raw)
To: Tom Rini, akpm; +Cc: linux-kernel, yshpilevsky, linuxppc-embedded
In-Reply-To: <20050624165841.GD3628@smtp.west.cox.net>
[-- Attachment #1: Type: text/plain, Size: 954 bytes --]
Tom Rini wrote:
> On Fri, Jun 24, 2005 at 08:29:02PM +0400, Andrei Konovalov wrote:
>
>>Tom Rini wrote:
>
> [snip]
>
>>>Lets just drop that hunk then..
>>
>>Do you mean not to use
>> io_block_mapping(BCSR_ADDR, BCSR_ADDR, BCSR_SIZE, _PAGE_IO);
>
>
> So I had myself slightly confused as first, but yes, what Eugene said at
> first is right, as shouldn't add more io_block_mappings, we should use
> ioremap() and fix drivers.
>
The hunk is removed, ioremap's added to the drivers.
Additionally, a misprint in cpm_uart_cpm1.c is fixed:
- cp->cp_pedir &= 0x00000c00;
+ cp->cp_pedir &= ~0x00000c00;
The MPC885ADS patch expects the MPC86xADS patch to be applied first.
The updated to the latest git MPC86xADS patch is attached as well
just in case (no changes except those to account for arch/ppc/Kconfig
modification since the previous patch dated June 23).
Andrew,
If none objects please consider applying the patches.
Thanks,
Andrei
[-- Attachment #2: mpc86xads.20050629.diff --]
[-- Type: text/plain, Size: 19062 bytes --]
This patch adds the Freescale MPC86xADS board support.
The supported devices are SMC UART and 10Mbit ethernet on SCC1.
The manual for the board says that it "is compatible with the MPC8xxFADS for
software point of view". That's why this patch extends FADS instead of
introducing a new platform.
FEC is not supported as the "combined FCC/FEC ethernet driver" driver
by Pantelis Antoniou should replace the current FEC driver.
Signed-off-by: Gennadiy Kurtsman <gkurtsman@ru.mvista.com>
Signed-off-by: Andrei Konovalov <akonovalov@ru.mvista.com>
Acked-by: Tom Rini <trini@kernel.crashing.org>
---
commit b2c81b479c854b798cb60298c664b3fcf6818f03
tree 154b2ebf98af9fd24a8f6b0ef1eb4beb79871d26
parent 4c91aedb75d1b87deccf16d58f67fb46402d7d44
author Andrei Konovalov <ank@ank.(none)> Wed, 29 Jun 2005 12:23:09 +0400
committer Andrei Konovalov <ank@ank.(none)> Wed, 29 Jun 2005 12:23:09 +0400
arch/ppc/Kconfig | 14 +
arch/ppc/configs/mpc86x_ads_defconfig | 633 +++++++++++++++++++++++++++++++++
arch/ppc/platforms/fads.h | 109 +++++-
3 files changed, 749 insertions(+), 7 deletions(-)
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -284,6 +284,9 @@ endmenu
menu "Platform options"
+config FADS
+ bool
+
choice
prompt "8xx Machine Type"
depends on 8xx
@@ -399,8 +402,17 @@ config BSEIP
26MB DRAM, 4MB flash, Ethernet, a 16K-gate FPGA, USB, an LCD/video
controller, and two RS232 ports.
-config FADS
+config MPC8XXFADS
bool "FADS"
+ select FADS
+
+config MPC86XADS
+ bool "MPC86XADS"
+ help
+ MPC86x Application Development System by Freescale Semiconductor.
+ The MPC86xADS is meant to serve as a platform for s/w and h/w
+ development around the MPC86X processor families.
+ select FADS
config TQM823L
bool "TQM823L"
diff --git a/arch/ppc/configs/mpc86x_ads_defconfig b/arch/ppc/configs/mpc86x_ads_defconfig
new file mode 100644
--- /dev/null
+++ b/arch/ppc/configs/mpc86x_ads_defconfig
@@ -0,0 +1,633 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.12-rc4
+# Tue Jun 14 13:36:35 2005
+#
+CONFIG_MMU=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_HAVE_DEC_LOCK=y
+CONFIG_PPC=y
+CONFIG_PPC32=y
+CONFIG_GENERIC_NVRAM=y
+CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+# CONFIG_CLEAN_COMPILE is not set
+CONFIG_BROKEN=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+CONFIG_SYSCTL=y
+# CONFIG_AUDIT is not set
+# CONFIG_HOTPLUG is not set
+CONFIG_KOBJECT_UEVENT=y
+# CONFIG_IKCONFIG is not set
+CONFIG_EMBEDDED=y
+# CONFIG_KALLSYMS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+# CONFIG_BASE_FULL is not set
+CONFIG_FUTEX=y
+# CONFIG_EPOLL is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+# CONFIG_SHMEM is not set
+CONFIG_CC_ALIGN_FUNCTIONS=0
+CONFIG_CC_ALIGN_LABELS=0
+CONFIG_CC_ALIGN_LOOPS=0
+CONFIG_CC_ALIGN_JUMPS=0
+CONFIG_TINY_SHMEM=y
+CONFIG_BASE_SMALL=1
+
+#
+# Loadable module support
+#
+CONFIG_MODULES=y
+# CONFIG_MODULE_UNLOAD is not set
+CONFIG_OBSOLETE_MODPARM=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+# CONFIG_KMOD is not set
+
+#
+# Processor
+#
+# CONFIG_6xx is not set
+# CONFIG_40x is not set
+# CONFIG_44x is not set
+# CONFIG_POWER3 is not set
+# CONFIG_POWER4 is not set
+CONFIG_8xx=y
+# CONFIG_E500 is not set
+# CONFIG_MATH_EMULATION is not set
+# CONFIG_CPU_FREQ is not set
+CONFIG_EMBEDDEDBOOT=y
+# CONFIG_PM is not set
+CONFIG_NOT_COHERENT_CACHE=y
+
+#
+# Platform options
+#
+CONFIG_FADS=y
+# CONFIG_RPXLITE is not set
+# CONFIG_RPXCLASSIC is not set
+# CONFIG_BSEIP is not set
+# CONFIG_MPC8XXFADS is not set
+CONFIG_MPC86XADS=y
+# CONFIG_TQM823L is not set
+# CONFIG_TQM850L is not set
+# CONFIG_TQM855L is not set
+# CONFIG_TQM860L is not set
+# CONFIG_FPS850L is not set
+# CONFIG_SPD823TS is not set
+# CONFIG_IVMS8 is not set
+# CONFIG_IVML24 is not set
+# CONFIG_SM850 is not set
+# CONFIG_HERMES_PRO is not set
+# CONFIG_IP860 is not set
+# CONFIG_LWMON is not set
+# CONFIG_PCU_E is not set
+# CONFIG_CCM is not set
+# CONFIG_LANTEC is not set
+# CONFIG_MBX is not set
+# CONFIG_WINCEPT is not set
+# CONFIG_SMP is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_HIGHMEM is not set
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+# CONFIG_CMDLINE_BOOL is not set
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options
+#
+# CONFIG_PCI is not set
+# CONFIG_PCI_DOMAINS is not set
+# CONFIG_PCI_QSPAN is not set
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+# CONFIG_PCCARD is not set
+
+#
+# Advanced setup
+#
+# CONFIG_ADVANCED_OPTIONS is not set
+
+#
+# Default settings for advanced configuration options are used
+#
+CONFIG_HIGHMEM_START=0xfe000000
+CONFIG_LOWMEM_SIZE=0x30000000
+CONFIG_KERNEL_START=0xc0000000
+CONFIG_TASK_SIZE=0x80000000
+CONFIG_CONSISTENT_START=0xff100000
+CONFIG_CONSISTENT_SIZE=0x00200000
+CONFIG_BOOT_LOAD=0x00400000
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+# CONFIG_STANDALONE is not set
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+# CONFIG_MTD is not set
+
+#
+# Parallel port support
+#
+# CONFIG_PARPORT is not set
+
+#
+# Plug and Play support
+#
+
+#
+# Block devices
+#
+# CONFIG_BLK_DEV_FD is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+CONFIG_BLK_DEV_LOOP=y
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_RAM is not set
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_LBD is not set
+# CONFIG_CDROM_PKTCDVD is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_ATA_OVER_ETH is not set
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_SCSI is not set
+
+#
+# Multi-device support (RAID and LVM)
+#
+# CONFIG_MD is not set
+
+#
+# Fusion MPT device support
+#
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_IEEE1394 is not set
+
+#
+# I2O device support
+#
+
+#
+# Macintosh device drivers
+#
+
+#
+# Networking support
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+# CONFIG_IP_PNP_BOOTP is not set
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_IP_TCPDIAG=y
+# CONFIG_IP_TCPDIAG_IPV6 is not set
+CONFIG_IPV6=m
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_INET6_AH is not set
+# CONFIG_INET6_ESP is not set
+# CONFIG_INET6_IPCOMP is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_IPV6_TUNNEL is not set
+# CONFIG_NETFILTER is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_NET_DIVERT is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+# CONFIG_NET_CLS_ROUTE is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+CONFIG_NETDEVICES=y
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+
+#
+# Ethernet (10 or 100Mbit)
+#
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_OAKNET is not set
+
+#
+# Ethernet (1000 Mbit)
+#
+
+#
+# Ethernet (10000 Mbit)
+#
+
+#
+# Token Ring devices
+#
+
+#
+# Wireless LAN (non-hamradio)
+#
+# CONFIG_NET_RADIO is not set
+
+#
+# Wan interfaces
+#
+# CONFIG_WAN is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+
+#
+# ISDN subsystem
+#
+# CONFIG_ISDN is not set
+
+#
+# Telephony Support
+#
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+CONFIG_SOUND_GAMEPORT=y
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_CPM=y
+CONFIG_SERIAL_CPM_CONSOLE=y
+# CONFIG_SERIAL_CPM_SCC1 is not set
+# CONFIG_SERIAL_CPM_SCC2 is not set
+# CONFIG_SERIAL_CPM_SCC3 is not set
+# CONFIG_SERIAL_CPM_SCC4 is not set
+CONFIG_SERIAL_CPM_SMC1=y
+# CONFIG_SERIAL_CPM_SMC2 is not set
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+
+#
+# IPMI
+#
+# CONFIG_IPMI_HANDLER is not set
+
+#
+# Watchdog Cards
+#
+# CONFIG_WATCHDOG is not set
+# CONFIG_NVRAM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_DTLK is not set
+# CONFIG_R3964 is not set
+
+#
+# Ftape, the floppy tape device driver
+#
+# CONFIG_AGP is not set
+# CONFIG_DRM is not set
+# CONFIG_RAW_DRIVER is not set
+
+#
+# TPM devices
+#
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+
+#
+# Dallas's 1-wire bus
+#
+# CONFIG_W1 is not set
+
+#
+# Misc devices
+#
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+
+#
+# Digital Video Broadcasting Devices
+#
+# CONFIG_DVB is not set
+
+#
+# Graphics support
+#
+# CONFIG_FB is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+
+#
+# USB support
+#
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# MMC/SD Card support
+#
+# CONFIG_MMC is not set
+
+#
+# InfiniBand support
+#
+# CONFIG_INFINIBAND is not set
+
+#
+# File systems
+#
+# CONFIG_EXT2_FS is not set
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_FS_XATTR is not set
+CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+
+#
+# XFS support
+#
+# CONFIG_XFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_SYSFS=y
+# CONFIG_DEVFS_FS is not set
+# CONFIG_DEVPTS_FS_XATTR is not set
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLBFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_NFS_V4=y
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_SUNRPC=y
+CONFIG_SUNRPC_GSS=y
+CONFIG_RPCSEC_GSS_KRB5=y
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+
+#
+# Native Language Support
+#
+# CONFIG_NLS is not set
+
+#
+# MPC8xx CPM Options
+#
+CONFIG_SCC_ENET=y
+CONFIG_SCC1_ENET=y
+# CONFIG_SCC2_ENET is not set
+# CONFIG_SCC3_ENET is not set
+# CONFIG_FEC_ENET is not set
+# CONFIG_ENET_BIG_BUFFERS is not set
+
+#
+# Generic MPC8xx Options
+#
+# CONFIG_8xx_COPYBACK is not set
+# CONFIG_8xx_CPU6 is not set
+CONFIG_NO_UCODE_PATCH=y
+# CONFIG_USB_SOF_UCODE_PATCH is not set
+# CONFIG_I2C_SPI_UCODE_PATCH is not set
+# CONFIG_I2C_SPI_SMC1_UCODE_PATCH is not set
+
+#
+# Library routines
+#
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC32 is not set
+# CONFIG_LIBCRC32C is not set
+
+#
+# Profiling support
+#
+# CONFIG_PROFILING is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+# CONFIG_DEBUG_KERNEL is not set
+CONFIG_LOG_BUF_SHIFT=14
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+CONFIG_CRYPTO=y
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=y
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Hardware crypto devices
+#
diff --git a/arch/ppc/platforms/fads.h b/arch/ppc/platforms/fads.h
--- a/arch/ppc/platforms/fads.h
+++ b/arch/ppc/platforms/fads.h
@@ -3,7 +3,18 @@
* the Motorola 860T FADS board. Copied from the MBX stuff.
*
* Copyright (c) 1998 Dan Malek (dmalek@jlc.net)
+ *
+ * Added MPC86XADS support.
+ * The MPC86xADS manual says the board "is compatible with the MPC8xxFADS
+ * for SW point of view". This is 99% correct.
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is licensed
+ * "as is" without any warranty of any kind, whether express or implied.
*/
+
#ifdef __KERNEL__
#ifndef __ASM_FADS_H__
#define __ASM_FADS_H__
@@ -12,18 +23,45 @@
#include <asm/ppcboot.h>
+#if defined(CONFIG_MPC86XADS)
+
+/* U-Boot maps BCSR to 0xff080000 */
+#define BCSR_ADDR ((uint)0xff080000)
+
+/* MPC86XADS has one more CPLD and an additional BCSR.
+ */
+#define CFG_PHYDEV_ADDR ((uint)0xff0a0000)
+#define BCSR5 ((uint)(CFG_PHYDEV_ADDR + 0x300))
+
+#define BCSR5_T1_RST 0x10
+#define BCSR5_ATM155_RST 0x08
+#define BCSR5_ATM25_RST 0x04
+#define BCSR5_MII1_EN 0x02
+#define BCSR5_MII1_RST 0x01
+
+/* There is no PHY link change interrupt */
+#define PHY_INTERRUPT (-1)
+
+#else /* FADS */
+
/* Memory map is configured by the PROM startup.
* I tried to follow the FADS manual, although the startup PROM
* dictates this and we simply have to move some of the physical
* addresses for Linux.
*/
#define BCSR_ADDR ((uint)0xff010000)
+
+/* PHY link change interrupt */
+#define PHY_INTERRUPT SIU_IRQ2
+
+#endif /* CONFIG_MPC86XADS */
+
#define BCSR_SIZE ((uint)(64 * 1024))
-#define BCSR0 ((uint)0xff010000)
-#define BCSR1 ((uint)0xff010004)
-#define BCSR2 ((uint)0xff010008)
-#define BCSR3 ((uint)0xff01000c)
-#define BCSR4 ((uint)0xff010010)
+#define BCSR0 ((uint)(BCSR_ADDR + 0x00))
+#define BCSR1 ((uint)(BCSR_ADDR + 0x04))
+#define BCSR2 ((uint)(BCSR_ADDR + 0x08))
+#define BCSR3 ((uint)(BCSR_ADDR + 0x0c))
+#define BCSR4 ((uint)(BCSR_ADDR + 0x10))
#define IMAP_ADDR ((uint)0xff000000)
#define IMAP_SIZE ((uint)(64 * 1024))
@@ -34,8 +72,17 @@
/* Bits of interest in the BCSRs.
*/
#define BCSR1_ETHEN ((uint)0x20000000)
+#define BCSR1_IRDAEN ((uint)0x10000000)
#define BCSR1_RS232EN_1 ((uint)0x01000000)
+#define BCSR1_PCCEN ((uint)0x00800000)
+#define BCSR1_PCCVCC0 ((uint)0x00400000)
+#define BCSR1_PCCVPP0 ((uint)0x00200000)
+#define BCSR1_PCCVPP1 ((uint)0x00100000)
+#define BCSR1_PCCVPP_MASK (BCSR1_PCCVPP0 | BCSR1_PCCVPP1)
#define BCSR1_RS232EN_2 ((uint)0x00040000)
+#define BCSR1_PCCVCC1 ((uint)0x00010000)
+#define BCSR1_PCCVCC_MASK (BCSR1_PCCVCC0 | BCSR1_PCCVCC1)
+
#define BCSR4_ETHLOOP ((uint)0x80000000) /* EEST Loopback */
#define BCSR4_EEFDX ((uint)0x40000000) /* EEST FDX enable */
#define BCSR4_FETH_EN ((uint)0x08000000) /* PHY enable */
@@ -44,14 +91,64 @@
#define BCSR4_FETHFDE ((uint)0x02000000) /* PHY FDX advertise */
#define BCSR4_FETHRST ((uint)0x00200000) /* PHY Reset */
+/* IO_BASE definition for pcmcia.
+ */
+#define _IO_BASE 0x80000000
+#define _IO_BASE_SIZE 0x1000
+
+#ifdef CONFIG_IDE
+#define MAX_HWIFS 1
+#endif
+
/* Interrupt level assignments.
*/
#define FEC_INTERRUPT SIU_LEVEL1 /* FEC interrupt */
-#define PHY_INTERRUPT SIU_IRQ2 /* PHY link change interrupt */
/* We don't use the 8259.
*/
#define NR_8259_INTS 0
+/* CPM Ethernet through SCC1 or SCC2 */
+
+#ifdef CONFIG_SCC1_ENET /* Probably 860 variant */
+/* Bits in parallel I/O port registers that have to be set/cleared
+ * to configure the pins for SCC1 use.
+ * TCLK - CLK1, RCLK - CLK2.
+ */
+#define PA_ENET_RXD ((ushort)0x0001)
+#define PA_ENET_TXD ((ushort)0x0002)
+#define PA_ENET_TCLK ((ushort)0x0100)
+#define PA_ENET_RCLK ((ushort)0x0200)
+#define PB_ENET_TENA ((uint)0x00001000)
+#define PC_ENET_CLSN ((ushort)0x0010)
+#define PC_ENET_RENA ((ushort)0x0020)
+
+/* Control bits in the SICR to route TCLK (CLK1) and RCLK (CLK2) to
+ * SCC1. Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero.
+ */
+#define SICR_ENET_MASK ((uint)0x000000ff)
+#define SICR_ENET_CLKRT ((uint)0x0000002c)
+#endif /* CONFIG_SCC1_ENET */
+
+#ifdef CONFIG_SCC2_ENET /* Probably 823/850 variant */
+/* Bits in parallel I/O port registers that have to be set/cleared
+ * to configure the pins for SCC1 use.
+ * TCLK - CLK1, RCLK - CLK2.
+ */
+#define PA_ENET_RXD ((ushort)0x0004)
+#define PA_ENET_TXD ((ushort)0x0008)
+#define PA_ENET_TCLK ((ushort)0x0400)
+#define PA_ENET_RCLK ((ushort)0x0200)
+#define PB_ENET_TENA ((uint)0x00002000)
+#define PC_ENET_CLSN ((ushort)0x0040)
+#define PC_ENET_RENA ((ushort)0x0080)
+
+/* Control bits in the SICR to route TCLK and RCLK to
+ * SCC2. Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero.
+ */
+#define SICR_ENET_MASK ((uint)0x0000ff00)
+#define SICR_ENET_CLKRT ((uint)0x00002e00)
+#endif /* CONFIG_SCC2_ENET */
+
#endif /* __ASM_FADS_H__ */
#endif /* __KERNEL__ */
[-- Attachment #3: mpc885ads.20050629.diff --]
[-- Type: text/plain, Size: 21977 bytes --]
This patch adds the Freescale MPC885ADS board support.
The supported devices are two SMC UARTs and 10Mbit ethernet on SCC3.
FEC is not supported as the "combined FCC/FEC ethernet driver" driver by
Pantelis Antoniou (fs_enet for short) should replace the current FEC driver.
On MPC885ADS SCC ethernet PHY defaults to the full duplex mode
upon reset. SCC is set to half duplex by default. This inconsistency
is not handled by this patch for the following reasons:
- ethernet works anyway (the statistics should look terrible though)
- work on a patch to add SCC ehternet support to the fs_enet driver is in
progress, and we will address this full/half duplex issue when moving
the board to the new ethernet driver and platform devices.
Signed-off-by: Yuri Shpilevsky <yshpilevsky@ru.mvista.com>
Signed-off-by: Andrei Konovalov <akonovalov@ru.mvista.com>
---
commit bae846206a4e560b962446864f9d1756992d58dd
tree 9706019c088037e3d63e5f1beac30353e4080ab7
parent b2c81b479c854b798cb60298c664b3fcf6818f03
author Andrei Konovalov <ank@ank.(none)> Wed, 29 Jun 2005 12:28:13 +0400
committer Andrei Konovalov <ank@ank.(none)> Wed, 29 Jun 2005 12:28:13 +0400
arch/ppc/8xx_io/enet.c | 52 ++-
arch/ppc/Kconfig | 8
arch/ppc/configs/mpc885ads_defconfig | 622 +++++++++++++++++++++++++++++++
arch/ppc/platforms/mpc885ads.h | 92 +++++
drivers/serial/cpm_uart/cpm_uart_cpm1.c | 32 ++
include/asm-ppc/mpc8xx.h | 4
6 files changed, 801 insertions(+), 9 deletions(-)
diff --git a/arch/ppc/8xx_io/enet.c b/arch/ppc/8xx_io/enet.c
--- a/arch/ppc/8xx_io/enet.c
+++ b/arch/ppc/8xx_io/enet.c
@@ -714,16 +714,24 @@ static int __init scc_enet_init(void)
immap->im_ioport.iop_pcdat &= ~PC_ENET_LBK; /* Disable Loopback */
#endif /* PC_ENET_LBK */
- /* Configure port C pins to enable CLSN and RENA.
+#ifdef PE_ENET_TCLK
+ /* Configure port E for TCLK and RCLK.
*/
- immap->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA);
- immap->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA);
- immap->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA);
-
+ cp->cp_pepar |= (PE_ENET_TCLK | PE_ENET_RCLK);
+ cp->cp_pedir &= ~(PE_ENET_TCLK | PE_ENET_RCLK);
+ cp->cp_peso &= ~(PE_ENET_TCLK | PE_ENET_RCLK);
+#else
/* Configure port A for TCLK and RCLK.
*/
immap->im_ioport.iop_papar |= (PA_ENET_TCLK | PA_ENET_RCLK);
immap->im_ioport.iop_padir &= ~(PA_ENET_TCLK | PA_ENET_RCLK);
+#endif
+
+ /* Configure port C pins to enable CLSN and RENA.
+ */
+ immap->im_ioport.iop_pcpar &= ~(PC_ENET_CLSN | PC_ENET_RENA);
+ immap->im_ioport.iop_pcdir &= ~(PC_ENET_CLSN | PC_ENET_RENA);
+ immap->im_ioport.iop_pcso |= (PC_ENET_CLSN | PC_ENET_RENA);
/* Configure Serial Interface clock routing.
* First, clear all SCC bits to zero, then set the ones we want.
@@ -896,14 +904,18 @@ static int __init scc_enet_init(void)
/* It is now OK to enable the Ethernet transmitter.
* Unfortunately, there are board implementation differences here.
*/
-#if (!defined (PB_ENET_TENA) && defined (PC_ENET_TENA))
+#if (!defined (PB_ENET_TENA) && defined (PC_ENET_TENA) && !defined (PE_ENET_TENA))
immap->im_ioport.iop_pcpar |= PC_ENET_TENA;
immap->im_ioport.iop_pcdir &= ~PC_ENET_TENA;
-#elif ( defined (PB_ENET_TENA) && !defined (PC_ENET_TENA))
+#elif ( defined (PB_ENET_TENA) && !defined (PC_ENET_TENA) && !defined (PE_ENET_TENA))
cp->cp_pbpar |= PB_ENET_TENA;
cp->cp_pbdir |= PB_ENET_TENA;
+#elif ( !defined (PB_ENET_TENA) && !defined (PC_ENET_TENA) && defined (PE_ENET_TENA))
+ cp->cp_pepar |= PE_ENET_TENA;
+ cp->cp_pedir &= ~PE_ENET_TENA;
+ cp->cp_peso |= PE_ENET_TENA;
#else
-#error Configuration Error: define exactly ONE of PB_ENET_TENA, PC_ENET_TENA
+#error Configuration Error: define exactly ONE of PB_ENET_TENA, PC_ENET_TENA, PE_ENET_TENA
#endif
#if defined(CONFIG_RPXLITE) || defined(CONFIG_RPXCLASSIC)
@@ -936,6 +948,29 @@ static int __init scc_enet_init(void)
*((volatile uint *)BCSR1) &= ~BCSR1_ETHEN;
#endif
+#ifdef CONFIG_MPC885ADS
+
+ /* Deassert PHY reset and enable the PHY.
+ */
+ {
+ volatile uint __iomem *bcsr = ioremap(BCSR_ADDR, BCSR_SIZE);
+ uint tmp;
+
+ tmp = in_be32(bcsr + 1 /* BCSR1 */);
+ tmp |= BCSR1_ETHEN;
+ out_be32(bcsr + 1, tmp);
+ tmp = in_be32(bcsr + 4 /* BCSR4 */);
+ tmp |= BCSR4_ETH10_RST;
+ out_be32(bcsr + 4, tmp);
+ iounmap(bcsr);
+ }
+
+ /* On MPC885ADS SCC ethernet PHY defaults to the full duplex mode
+ * upon reset. SCC is set to half duplex by default. So this
+ * inconsistency should be better fixed by the software.
+ */
+#endif
+
dev->base_addr = (unsigned long)ep;
#if 0
dev->name = "CPM_ENET";
@@ -969,3 +1004,4 @@ static int __init scc_enet_init(void)
}
module_init(scc_enet_init);
+
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -414,6 +414,14 @@ config MPC86XADS
development around the MPC86X processor families.
select FADS
+config MPC885ADS
+ bool "MPC885ADS"
+ help
+ Freescale Semiconductor MPC885 Application Development System (ADS).
+ Also known as DUET.
+ The MPC885ADS is meant to serve as a platform for s/w and h/w
+ development around the MPC885 processor family.
+
config TQM823L
bool "TQM823L"
help
diff --git a/arch/ppc/configs/mpc885ads_defconfig b/arch/ppc/configs/mpc885ads_defconfig
new file mode 100644
--- /dev/null
+++ b/arch/ppc/configs/mpc885ads_defconfig
@@ -0,0 +1,622 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.12-rc6
+# Thu Jun 9 21:17:29 2005
+#
+CONFIG_MMU=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_HAVE_DEC_LOCK=y
+CONFIG_PPC=y
+CONFIG_PPC32=y
+CONFIG_GENERIC_NVRAM=y
+CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
+
+#
+# Code maturity level options
+#
+CONFIG_EXPERIMENTAL=y
+# CONFIG_CLEAN_COMPILE is not set
+CONFIG_BROKEN=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+
+#
+# General setup
+#
+CONFIG_LOCALVERSION=""
+# CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+CONFIG_SYSCTL=y
+# CONFIG_AUDIT is not set
+CONFIG_HOTPLUG=y
+CONFIG_KOBJECT_UEVENT=y
+# CONFIG_IKCONFIG is not set
+CONFIG_EMBEDDED=y
+# CONFIG_KALLSYMS is not set
+CONFIG_PRINTK=y
+CONFIG_BUG=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+# CONFIG_EPOLL is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SHMEM=y
+CONFIG_CC_ALIGN_FUNCTIONS=0
+CONFIG_CC_ALIGN_LABELS=0
+CONFIG_CC_ALIGN_LOOPS=0
+CONFIG_CC_ALIGN_JUMPS=0
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+
+#
+# Loadable module support
+#
+# CONFIG_MODULES is not set
+
+#
+# Processor
+#
+# CONFIG_6xx is not set
+# CONFIG_40x is not set
+# CONFIG_44x is not set
+# CONFIG_POWER3 is not set
+# CONFIG_POWER4 is not set
+CONFIG_8xx=y
+# CONFIG_E500 is not set
+# CONFIG_MATH_EMULATION is not set
+# CONFIG_CPU_FREQ is not set
+CONFIG_EMBEDDEDBOOT=y
+# CONFIG_PM is not set
+CONFIG_NOT_COHERENT_CACHE=y
+
+#
+# Platform options
+#
+# CONFIG_RPXLITE is not set
+# CONFIG_RPXCLASSIC is not set
+# CONFIG_BSEIP is not set
+# CONFIG_FADS is not set
+CONFIG_MPC885ADS=y
+# CONFIG_TQM823L is not set
+# CONFIG_TQM850L is not set
+# CONFIG_TQM855L is not set
+# CONFIG_TQM860L is not set
+# CONFIG_FPS850L is not set
+# CONFIG_SPD823TS is not set
+# CONFIG_IVMS8 is not set
+# CONFIG_IVML24 is not set
+# CONFIG_SM850 is not set
+# CONFIG_HERMES_PRO is not set
+# CONFIG_IP860 is not set
+# CONFIG_LWMON is not set
+# CONFIG_PCU_E is not set
+# CONFIG_CCM is not set
+# CONFIG_LANTEC is not set
+# CONFIG_MBX is not set
+# CONFIG_WINCEPT is not set
+# CONFIG_SMP is not set
+# CONFIG_PREEMPT is not set
+# CONFIG_HIGHMEM is not set
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+# CONFIG_CMDLINE_BOOL is not set
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options
+#
+# CONFIG_PCI is not set
+# CONFIG_PCI_DOMAINS is not set
+# CONFIG_PCI_QSPAN is not set
+
+#
+# PCCARD (PCMCIA/CardBus) support
+#
+# CONFIG_PCCARD is not set
+
+#
+# Advanced setup
+#
+# CONFIG_ADVANCED_OPTIONS is not set
+
+#
+# Default settings for advanced configuration options are used
+#
+CONFIG_HIGHMEM_START=0xfe000000
+CONFIG_LOWMEM_SIZE=0x30000000
+CONFIG_KERNEL_START=0xc0000000
+CONFIG_TASK_SIZE=0x80000000
+CONFIG_CONSISTENT_START=0xff100000
+CONFIG_CONSISTENT_SIZE=0x00200000
+CONFIG_BOOT_LOAD=0x00400000
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_FW_LOADER is not set
+
+#
+# Memory Technology Devices (MTD)
+#
+# CONFIG_MTD is not set
+
+#
+# Parallel port support
+#
+# CONFIG_PARPORT is not set
+
+#
+# Plug and Play support
+#
+
+#
+# Block devices
+#
+# CONFIG_BLK_DEV_FD is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_RAM is not set
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_LBD is not set
+# CONFIG_CDROM_PKTCDVD is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IOSCHED_AS is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+# CONFIG_ATA_OVER_ETH is not set
+
+#
+# ATA/ATAPI/MFM/RLL support
+#
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_SCSI is not set
+
+#
+# Multi-device support (RAID and LVM)
+#
+# CONFIG_MD is not set
+
+#
+# Fusion MPT device support
+#
+
+#
+# IEEE 1394 (FireWire) support
+#
+# CONFIG_IEEE1394 is not set
+
+#
+# I2O device support
+#
+
+#
+# Macintosh device drivers
+#
+
+#
+# Networking support
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_TUNNEL is not set
+CONFIG_IP_TCPDIAG=y
+# CONFIG_IP_TCPDIAG_IPV6 is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETFILTER is not set
+
+#
+# SCTP Configuration (EXPERIMENTAL)
+#
+# CONFIG_IP_SCTP is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_NET_DIVERT is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+
+#
+# QoS and/or fair queueing
+#
+# CONFIG_NET_SCHED is not set
+# CONFIG_NET_CLS_ROUTE is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+CONFIG_NETDEVICES=y
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+
+#
+# Ethernet (10 or 100Mbit)
+#
+CONFIG_NET_ETHERNET=y
+CONFIG_MII=y
+# CONFIG_OAKNET is not set
+
+#
+# Ethernet (1000 Mbit)
+#
+
+#
+# Ethernet (10000 Mbit)
+#
+
+#
+# Token Ring devices
+#
+
+#
+# Wireless LAN (non-hamradio)
+#
+# CONFIG_NET_RADIO is not set
+
+#
+# Wan interfaces
+#
+# CONFIG_WAN is not set
+CONFIG_PPP=y
+# CONFIG_PPP_MULTILINK is not set
+# CONFIG_PPP_FILTER is not set
+CONFIG_PPP_ASYNC=y
+CONFIG_PPP_SYNC_TTY=y
+CONFIG_PPP_DEFLATE=y
+# CONFIG_PPP_BSDCOMP is not set
+# CONFIG_PPPOE is not set
+# CONFIG_SLIP is not set
+# CONFIG_SHAPER is not set
+# CONFIG_NETCONSOLE is not set
+
+#
+# ISDN subsystem
+#
+# CONFIG_ISDN is not set
+
+#
+# Telephony Support
+#
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_CPM=y
+CONFIG_SERIAL_CPM_CONSOLE=y
+# CONFIG_SERIAL_CPM_SCC1 is not set
+# CONFIG_SERIAL_CPM_SCC2 is not set
+# CONFIG_SERIAL_CPM_SCC3 is not set
+# CONFIG_SERIAL_CPM_SCC4 is not set
+CONFIG_SERIAL_CPM_SMC1=y
+CONFIG_SERIAL_CPM_SMC2=y
+CONFIG_UNIX98_PTYS=y
+# CONFIG_LEGACY_PTYS is not set
+
+#
+# IPMI
+#
+# CONFIG_IPMI_HANDLER is not set
+
+#
+# Watchdog Cards
+#
+# CONFIG_WATCHDOG is not set
+# CONFIG_NVRAM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_DTLK is not set
+# CONFIG_R3964 is not set
+
+#
+# Ftape, the floppy tape device driver
+#
+# CONFIG_AGP is not set
+# CONFIG_DRM is not set
+# CONFIG_RAW_DRIVER is not set
+
+#
+# TPM devices
+#
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+
+#
+# Dallas's 1-wire bus
+#
+# CONFIG_W1 is not set
+
+#
+# Misc devices
+#
+
+#
+# Multimedia devices
+#
+# CONFIG_VIDEO_DEV is not set
+
+#
+# Digital Video Broadcasting Devices
+#
+# CONFIG_DVB is not set
+
+#
+# Graphics support
+#
+# CONFIG_FB is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+
+#
+# USB support
+#
+# CONFIG_USB_ARCH_HAS_HCD is not set
+# CONFIG_USB_ARCH_HAS_OHCI is not set
+
+#
+# USB Gadget Support
+#
+# CONFIG_USB_GADGET is not set
+
+#
+# MMC/SD Card support
+#
+# CONFIG_MMC is not set
+
+#
+# InfiniBand support
+#
+# CONFIG_INFINIBAND is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+# CONFIG_EXT2_FS_POSIX_ACL is not set
+# CONFIG_EXT2_FS_SECURITY is not set
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_XATTR=y
+# CONFIG_EXT3_FS_POSIX_ACL is not set
+# CONFIG_EXT3_FS_SECURITY is not set
+CONFIG_JBD=y
+# CONFIG_JBD_DEBUG is not set
+CONFIG_FS_MBCACHE=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+
+#
+# XFS support
+#
+# CONFIG_XFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_QUOTA is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+# CONFIG_PROC_KCORE is not set
+CONFIG_SYSFS=y
+# CONFIG_DEVFS_FS is not set
+# CONFIG_DEVPTS_FS_XATTR is not set
+# CONFIG_TMPFS is not set
+# CONFIG_HUGETLBFS is not set
+# CONFIG_HUGETLB_PAGE is not set
+CONFIG_RAMFS=y
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+
+#
+# Network File Systems
+#
+CONFIG_NFS_FS=y
+# CONFIG_NFS_V3 is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFS_DIRECTIO is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_SUNRPC=y
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_AMIGA_PARTITION is not set
+# CONFIG_ATARI_PARTITION is not set
+# CONFIG_MAC_PARTITION is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_UNIXWARE_DISKLABEL is not set
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_SGI_PARTITION is not set
+# CONFIG_ULTRIX_PARTITION is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+
+#
+# Native Language Support
+#
+# CONFIG_NLS is not set
+
+#
+# MPC8xx CPM Options
+#
+CONFIG_SCC_ENET=y
+# CONFIG_SCC1_ENET is not set
+# CONFIG_SCC2_ENET is not set
+CONFIG_SCC3_ENET=y
+# CONFIG_FEC_ENET is not set
+# CONFIG_ENET_BIG_BUFFERS is not set
+
+#
+# Generic MPC8xx Options
+#
+CONFIG_8xx_COPYBACK=y
+CONFIG_8xx_CPU6=y
+CONFIG_NO_UCODE_PATCH=y
+# CONFIG_USB_SOF_UCODE_PATCH is not set
+# CONFIG_I2C_SPI_UCODE_PATCH is not set
+# CONFIG_I2C_SPI_SMC1_UCODE_PATCH is not set
+
+#
+# Library routines
+#
+CONFIG_CRC_CCITT=y
+# CONFIG_CRC32 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZLIB_DEFLATE=y
+
+#
+# Profiling support
+#
+# CONFIG_PROFILING is not set
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+# CONFIG_DEBUG_KERNEL is not set
+CONFIG_LOG_BUF_SHIFT=14
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+
+#
+# Cryptographic options
+#
+# CONFIG_CRYPTO is not set
+
+#
+# Hardware crypto devices
+#
diff --git a/arch/ppc/platforms/mpc885ads.h b/arch/ppc/platforms/mpc885ads.h
new file mode 100644
--- /dev/null
+++ b/arch/ppc/platforms/mpc885ads.h
@@ -0,0 +1,92 @@
+/*
+ * A collection of structures, addresses, and values associated with
+ * the Freescale MPC885ADS board.
+ * Copied from the FADS stuff.
+ *
+ * Author: MontaVista Software, Inc.
+ * source@mvista.com
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under the
+ * terms of the GNU General Public License version 2. This program is licensed
+ * "as is" without any warranty of any kind, whether express or implied.
+ */
+
+#ifdef __KERNEL__
+#ifndef __ASM_MPC885ADS_H__
+#define __ASM_MPC885ADS_H__
+
+#include <linux/config.h>
+
+#include <asm/ppcboot.h>
+
+/* U-Boot maps BCSR to 0xff080000 */
+#define BCSR_ADDR ((uint)0xff080000)
+#define BCSR_SIZE ((uint)32)
+#define BCSR0 ((uint)(BCSR_ADDR + 0x00))
+#define BCSR1 ((uint)(BCSR_ADDR + 0x04))
+#define BCSR2 ((uint)(BCSR_ADDR + 0x08))
+#define BCSR3 ((uint)(BCSR_ADDR + 0x0c))
+#define BCSR4 ((uint)(BCSR_ADDR + 0x10))
+
+#define CFG_PHYDEV_ADDR ((uint)0xff0a0000)
+#define BCSR5 ((uint)(CFG_PHYDEV_ADDR + 0x300))
+
+#define IMAP_ADDR ((uint)0xff000000)
+#define IMAP_SIZE ((uint)(64 * 1024))
+
+#define PCMCIA_MEM_ADDR ((uint)0xff020000)
+#define PCMCIA_MEM_SIZE ((uint)(64 * 1024))
+
+/* Bits of interest in the BCSRs.
+ */
+#define BCSR1_ETHEN ((uint)0x20000000)
+#define BCSR1_IRDAEN ((uint)0x10000000)
+#define BCSR1_RS232EN_1 ((uint)0x01000000)
+#define BCSR1_PCCEN ((uint)0x00800000)
+#define BCSR1_PCCVCC0 ((uint)0x00400000)
+#define BCSR1_PCCVPP0 ((uint)0x00200000)
+#define BCSR1_PCCVPP1 ((uint)0x00100000)
+#define BCSR1_PCCVPP_MASK (BCSR1_PCCVPP0 | BCSR1_PCCVPP1)
+#define BCSR1_RS232EN_2 ((uint)0x00040000)
+#define BCSR1_PCCVCC1 ((uint)0x00010000)
+#define BCSR1_PCCVCC_MASK (BCSR1_PCCVCC0 | BCSR1_PCCVCC1)
+
+#define BCSR4_ETH10_RST ((uint)0x80000000) /* 10Base-T PHY reset*/
+#define BCSR4_USB_LO_SPD ((uint)0x04000000)
+#define BCSR4_USB_VCC ((uint)0x02000000)
+#define BCSR4_USB_FULL_SPD ((uint)0x00040000)
+#define BCSR4_USB_EN ((uint)0x00020000)
+
+#define BCSR5_MII2_EN 0x40
+#define BCSR5_MII2_RST 0x20
+#define BCSR5_T1_RST 0x10
+#define BCSR5_ATM155_RST 0x08
+#define BCSR5_ATM25_RST 0x04
+#define BCSR5_MII1_EN 0x02
+#define BCSR5_MII1_RST 0x01
+
+/* Interrupt level assignments */
+#define PHY_INTERRUPT SIU_IRQ7 /* PHY link change interrupt */
+#define SIU_INT_FEC1 SIU_LEVEL1 /* FEC1 interrupt */
+#define SIU_INT_FEC2 SIU_LEVEL3 /* FEC2 interrupt */
+#define FEC_INTERRUPT SIU_INT_FEC1 /* FEC interrupt */
+
+/* We don't use the 8259 */
+#define NR_8259_INTS 0
+
+/* CPM Ethernet through SCC3 */
+#define PA_ENET_RXD ((ushort)0x0040)
+#define PA_ENET_TXD ((ushort)0x0080)
+#define PE_ENET_TCLK ((uint)0x00004000)
+#define PE_ENET_RCLK ((uint)0x00008000)
+#define PE_ENET_TENA ((uint)0x00000010)
+#define PC_ENET_CLSN ((ushort)0x0400)
+#define PC_ENET_RENA ((ushort)0x0800)
+
+/* Control bits in the SICR to route TCLK (CLK5) and RCLK (CLK6) to
+ * SCC3. Also, make sure GR3 (bit 8) and SC3 (bit 9) are zero */
+#define SICR_ENET_MASK ((uint)0x00ff0000)
+#define SICR_ENET_CLKRT ((uint)0x002c0000)
+
+#endif /* __ASM_MPC885ADS_H__ */
+#endif /* __KERNEL__ */
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -94,12 +94,42 @@ void smc1_lineif(struct uart_cpm_port *p
((immap_t *)IMAP_ADDR)->im_ioport.iop_paodr &= ~iobits;
}
+#ifdef CONFIG_MPC885ADS
+ /* Enable SMC1 transceivers */
+ {
+ volatile uint __iomem *bcsr1 = ioremap(BCSR1, 4);
+ uint tmp;
+
+ tmp = in_be32(bcsr1);
+ tmp &= ~BCSR1_RS232EN_1;
+ out_be32(bcsr1, tmp);
+ iounmap(bcsr1);
+ }
+#endif
+
pinfo->brg = 1;
}
void smc2_lineif(struct uart_cpm_port *pinfo)
{
- /* XXX SMC2: insert port configuration here */
+#ifdef CONFIG_MPC885ADS
+ volatile cpm8xx_t *cp = cpmp;
+ volatile uint __iomem *bcsr1;
+ uint tmp;
+
+ cp->cp_pepar |= 0x00000c00;
+ cp->cp_pedir &= ~0x00000c00;
+ cp->cp_peso &= ~0x00000400;
+ cp->cp_peso |= 0x00000800;
+
+ /* Enable SMC2 transceivers */
+ bcsr1 = ioremap(BCSR1, 4);
+ tmp = in_be32(bcsr1);
+ tmp &= ~BCSR1_RS232EN_2;
+ out_be32(bcsr1, tmp);
+ iounmap(bcsr1);
+#endif
+
pinfo->brg = 2;
}
diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h
--- a/include/asm-ppc/mpc8xx.h
+++ b/include/asm-ppc/mpc8xx.h
@@ -68,6 +68,10 @@
#include <platforms/lantec.h>
#endif
+#if defined(CONFIG_MPC885ADS)
+#include <platforms/mpc885ads.h>
+#endif
+
/* Currently, all 8xx boards that support a processor to PCI/ISA bridge
* use the same memory map.
*/
^ permalink raw reply
* Re: ppc405 kernel debugging
From: andreas_schmidt @ 2005-06-29 8:16 UTC (permalink / raw)
To: grave; +Cc: linuxppc-embedded
hi
You can debug it with static variables. After compile the kernel, you can see the address
of this static variable in System.map and when the kernel runs you can see the value of
this variable in xmd debug tool.
^ permalink raw reply
* (no subject)
From: 董晓凡 @ 2005-06-29 6:21 UTC (permalink / raw)
To: linuxppc-dev
[-- Attachment #1.1: Type: text/plain, Size: 321 bytes --]
Hi，everybody.Recently,I focus on kernel 2.6.10,I want to migrate it to
mpc8260.
But,I can not compile it successfully when I choose fcc .And it seems some
wrong with cpm2_immap.h.
Would you like to tell me if it need a patch.
Thankyou very much!
**********************************************
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^ permalink raw reply
* Re: [PATCH] ppc32: Remove CONFIG_PMAC_PBOOK
From: Benjamin Herrenschmidt @ 2005-06-29 6:45 UTC (permalink / raw)
To: Gabriel Paubert; +Cc: Andrew Morton, linuxppc-dev list, Linux Kernel list
In-Reply-To: <20050629063301.GA8285@iram.es>
On Wed, 2005-06-29 at 08:33 +0200, Gabriel Paubert wrote:
> On Wed, Jun 29, 2005 at 09:53:12AM +1000, Benjamin Herrenschmidt wrote:
> > On Tue, 2005-06-28 at 10:57 +0200, Christoph Hellwig wrote:
> > > On Mon, Jun 27, 2005 at 02:39:16PM +1000, Benjamin Herrenschmidt wrote:
> > > > This patch removes CONFIG_PMAC_PBOOK (PowerBook support). This is now
> > > > split into CONFIG_PMAC_MEDIABAY for the actual hotswap bay that some
> > > > powerbooks have, CONFIG_PM for power management related code, and just
> > > > left out of any CONFIG_* option for some generally useful stuff that can
> > > > be used on non-laptops as well.
> > >
> > > Can you clarify the CONFIG_PMAC_MEDIABAY for which powerbooks this
> > > is needed exactly? AFAIK up to one of the G3 models, but you probably
> > > know better :)
> >
> > 3400/3500 models (603 & first G3), wallstreet and 101 afaik. Mostly old
> > models with a hotswap bay containing the CD-ROM, a floppy drive or an
> > additional battery.
>
> Actually all G3 including the Pismo (I have one) although I don't know
> if the drive bay accepts floppy drives. By the time this model was
> introduced, floppies were already on their way out.
Yup, I don't think Keylargo has a swim3 cell
> Mine was delivered with a DVD reader, which is the only part that really
> shows problems after 4 years and a half of daily use (and it has got
> its third battery but that's in line with expected battery life).
>
> Gabriel
^ permalink raw reply
* Re: [PATCH] ppc32: Remove CONFIG_PMAC_PBOOK
From: Gabriel Paubert @ 2005-06-29 6:33 UTC (permalink / raw)
To: Benjamin Herrenschmidt
Cc: Andrew Morton, linuxppc-dev list, Linux Kernel list
In-Reply-To: <1120002793.5133.214.camel@gaston>
On Wed, Jun 29, 2005 at 09:53:12AM +1000, Benjamin Herrenschmidt wrote:
> On Tue, 2005-06-28 at 10:57 +0200, Christoph Hellwig wrote:
> > On Mon, Jun 27, 2005 at 02:39:16PM +1000, Benjamin Herrenschmidt wrote:
> > > This patch removes CONFIG_PMAC_PBOOK (PowerBook support). This is now
> > > split into CONFIG_PMAC_MEDIABAY for the actual hotswap bay that some
> > > powerbooks have, CONFIG_PM for power management related code, and just
> > > left out of any CONFIG_* option for some generally useful stuff that can
> > > be used on non-laptops as well.
> >
> > Can you clarify the CONFIG_PMAC_MEDIABAY for which powerbooks this
> > is needed exactly? AFAIK up to one of the G3 models, but you probably
> > know better :)
>
> 3400/3500 models (603 & first G3), wallstreet and 101 afaik. Mostly old
> models with a hotswap bay containing the CD-ROM, a floppy drive or an
> additional battery.
Actually all G3 including the Pismo (I have one) although I don't know
if the drive bay accepts floppy drives. By the time this model was
introduced, floppies were already on their way out.
Mine was delivered with a DVD reader, which is the only part that really
shows problems after 4 years and a half of daily use (and it has got
its third battery but that's in line with expected battery life).
Gabriel
^ permalink raw reply
* Re: [PATCH] 8xx: get_mmu_context() for (very) FEW_CONTEXTS and KERNEL_PREEMPT race/starvation issue
From: Benjamin Herrenschmidt @ 2005-06-29 4:15 UTC (permalink / raw)
To: Guillaume Autran; +Cc: linux-ppc-embedded
In-Reply-To: <42C153E1.3060004@mrv.com>
On Tue, 2005-06-28 at 09:42 -0400, Guillaume Autran wrote:
> Hi,
>
> I happen to notice a race condition in the mmu_context code for the 8xx
> with very few context (16 MMU contexts) and kernel preemption enable. It
> is hard to reproduce has it shows only when many processes are
> created/destroy and the system is doing a lot of IRQ processing.
>
> In short, one process is trying to steal a context that is in the
> process of being freed (mm->context == NO_CONTEXT) but not completely
> freed (nr_free_contexts == 0).
> The steal_context() function does not do anything and the process stays
> in the loop forever.
>
> Anyway, I got a patch that fixes this part. Does not seem to affect
> scheduling latency at all.
>
> Comments are appreciated.
Your patch seems to do a hell lot more than fixing this race ... What
about just calling preempt_disable() in destroy_context() instead ?
Ben.
^ permalink raw reply
* Re: [PATCH] ppc32: Remove CONFIG_PMAC_PBOOK
From: Benjamin Herrenschmidt @ 2005-06-28 23:53 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: Andrew Morton, linuxppc-dev list, Linux Kernel list
In-Reply-To: <20050628085701.GA31218@lst.de>
On Tue, 2005-06-28 at 10:57 +0200, Christoph Hellwig wrote:
> On Mon, Jun 27, 2005 at 02:39:16PM +1000, Benjamin Herrenschmidt wrote:
> > This patch removes CONFIG_PMAC_PBOOK (PowerBook support). This is now
> > split into CONFIG_PMAC_MEDIABAY for the actual hotswap bay that some
> > powerbooks have, CONFIG_PM for power management related code, and just
> > left out of any CONFIG_* option for some generally useful stuff that can
> > be used on non-laptops as well.
>
> Can you clarify the CONFIG_PMAC_MEDIABAY for which powerbooks this
> is needed exactly? AFAIK up to one of the G3 models, but you probably
> know better :)
3400/3500 models (603 & first G3), wallstreet and 101 afaik. Mostly old
models with a hotswap bay containing the CD-ROM, a floppy drive or an
additional battery.
Ben.
^ permalink raw reply
* Re: [PATCH] ppc32: Remove CONFIG_PMAC_PBOOK
From: Benjamin Herrenschmidt @ 2005-06-28 23:52 UTC (permalink / raw)
To: Segher Boessenkool; +Cc: Andrew Morton, linuxppc-dev list, Linux Kernel list
In-Reply-To: <931dc22c9709211c29f2d9d504d8ff9e@kernel.crashing.org>
On Tue, 2005-06-28 at 09:43 +0200, Segher Boessenkool wrote:
> > This patch removes CONFIG_PMAC_PBOOK (PowerBook support). This is now
> > split into CONFIG_PMAC_MEDIABAY for the actual hotswap bay that some
> > powerbooks have, CONFIG_PM for power management related code, and just
> > left out of any CONFIG_* option for some generally useful stuff that
> > can
> > be used on non-laptops as well.
>
> Is there any real reason not to enable CONFIG_PM on all Macs
People using old desktop machines with little memory may want to keep
the RAM footprint low :)
Ben.
^ permalink raw reply
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