[microblaze-uclinux] Re: [RFC PATCH 05/12] of: add common header for flattened device tree representation

Michal Simek monstr at monstr.eu
Wed Oct 7 23:14:18 EST 2009



Stephen Rothwell wrote:
> Hi Grant,
> 
> Just first obvious thing:
> 
> On Tue, 06 Oct 2009 22:30:59 -0600 Grant Likely <grant.likely at secretlab.ca> wrote:
>> diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
>> index 64e8b3a..5f461f0 100644
>> --- a/arch/microblaze/include/asm/prom.h
>> +++ b/arch/microblaze/include/asm/prom.h
>> @@ -17,20 +17,10 @@
>>  #ifndef _ASM_MICROBLAZE_PROM_H
>>  #define _ASM_MICROBLAZE_PROM_H
>>  #ifdef __KERNEL__
>> -
>> -/* Definitions used by the flattened device tree */
>> -#define OF_DT_HEADER		0xd00dfeed /* marker */
> 
> This is used in arch/microblaze/kernel/head.S, but you move its
> definition inside "#ifndef __ASSEMBLY__" below.  You should probably
> replace the include of asm/prom.h in arch/microblaze/kernel/head.S with
> linux/of_fdt.h (assuming that the comment in there is correct).

yes, Stephen is right here. I created one patch (in attachment) which fixed it. I tested your
patches on Microblaze (noMMU and MMU) and I have no problem with compilation and simple boot-up
works for both versions too.

With that my patch: Acked-by: Michal Simek <monstr at monstr.eu>

Thanks,
Michal

P.S.: I have my provider - it block my emails - that's why the patch is in attachment.

> 
>> -#define OF_DT_BEGIN_NODE	0x1 /* Start of node, full name */
>> -#define OF_DT_END_NODE		0x2 /* End node */
>> -#define OF_DT_PROP		0x3 /* Property: name off, size, content */
>> -#define OF_DT_NOP		0x4 /* nop */
>> -#define OF_DT_END		0x9
>> -
>> -#define OF_DT_VERSION		0x10
>> -
>>  #ifndef __ASSEMBLY__
>>  
>>  #include <linux/types.h>
>> +#include <linux/of_fdt.h>
>>  #include <linux/proc_fs.h>
>>  #include <linux/platform_device.h>
>>  #include <asm/irq.h>
> 


-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian
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