[U-Boot] [PATCH 1/5][v2] powerpc/mpc85xx:No NOR boot, do not compile IFC errata A003399
Scott Wood
scottwood at freescale.com
Wed Apr 10 01:41:46 CEST 2013
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 at 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
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