[U-Boot] [PATCH 1/5][v2] powerpc/mpc85xx:No NOR boot, do not compile IFC errata A003399

[Scott Wood <scottwood@freescale.com>]

On 04/08/2013 11:56:25 PM, Prabhakar Kushwaha wrote:
> On 04/09/2013 06:09 AM, Scott Wood wrote:
>> On 04/05/2013 09:28:14 PM, Prabhakar Kushwaha wrote:
>>> On 04/06/2013 02:03 AM, Scott Wood wrote:
>>>> On 03/22/2013 02:07:48 AM, Prabhakar Kushwaha wrote:
>>>>> IFC errata A003399 is valid for IFC NOR boot i.e.if no on-board  
>>>>> NOR flash or
>>>>> no NOR boot, do not compile its workaround.
>>>>> 
>>>>> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
>>>>> ---
>>>>>  Based upon git://git.denx.de/u-boot.git branch master
>>>>>  Changes for v2:
>>>>>      - Add CONFIG_A003399_NOR_WORKAROUND for errata workaround
>>>>>     - Add CONFIG_A003399_NOR_WORKAROUND in README
>>>>> 
>>>>>  README                                    |    4 ++++
>>>>>  arch/powerpc/cpu/mpc85xx/cpu_init_early.c |    9 ++++++---
>>>>>  arch/powerpc/cpu/mpc8xxx/fsl_ifc.c        |    2 +-
>>>>>  3 files changed, 11 insertions(+), 4 deletions(-)
>>>>> 
>>>>> diff --git a/README b/README
>>>>> index 7f2506a..c4ad69d 100644
>>>>> --- a/README
>>>>> +++ b/README
>>>>> @@ -414,6 +414,10 @@ The following options need to be configured:
>>>>>          See Freescale App Note 4493 for more information about
>>>>>          this erratum.
>>>>> 
>>>>> +        CONFIG_A003399_NOR_WORKAROUND
>>>>> +        Enables a workaround for IFC erratum A003399. It is only
>>>>> +        requred during NOR boot.
>>>>> +
>>>>>          CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
>>>>> 
>>>>>          This is the value to write into CCSR offset 0x18600
>>>>> diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c  
>>>>> b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
>>>>> index dacfdd1..3a4bfc5 100644
>>>>> --- a/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
>>>>> +++ b/arch/powerpc/cpu/mpc85xx/cpu_init_early.c
>>>>> @@ -25,7 +25,8 @@
>>>>> 
>>>>>  DECLARE_GLOBAL_DATA_PTR;
>>>>> 
>>>>> -#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399) &&  
>>>>> !defined(CONFIG_SYS_RAMBOOT)
>>>>> +#if defined(CONFIG_SYS_FSL_ERRATUM_IFC_A003399)\
>>>>> +    && defined(CONFIG_A003399_NOR_WORKAROUND)
>>>> 
>>>> Why would CONFIG_A003399_NOR_WORKAROUND be enabled if  
>>>> CONFIG_SYS_FSL_ERRATUM_IFC_A003399 isn't?
>>> 
>>> 
>>> originally i tried the same but it did not work. As P1010RDB.h does  
>>> not include config_mpc85xx.h.   Only arch/powerpc/cpu/mpc85xx/*.c  
>>> files includes both P1010RDB.h and config_mpc85xx.h
>> 
>> Can you add #include <config.h> in P1010RDB.h near the top, but  
>> after the symbols that config_mpc85xx.h depends on (which I think is  
>> just CONFIG_P1010)?
> I need to add config_mpc85xx.h here.
> 
>  #define CONFIG_MPC85xx
>  #define CONFIG_FSL_IFC                 /* Enable IFC Support */
>  #define CONFIG_SYS_HAS_SERDES          /* common SERDES init code */
> +#include "../../arch/powerpc/include/asm/config_mpc85xx.h"
> 
> I tried just after CONFIG_P1010 but it is giving compilation error.

What error?

> Just to mention, I need to provide relative path in order to compile.

What specifically did you try and what error did it produce?

> I will still suggest to keep original patch, As header file location  
> may change over period of time then config file needs to be updated  
> again.

No, this has been a repeated problem (not having access to  
config_mpc85xx.h in the board config file) and I'd like to see it fixed.

-Scott