[PATCH 1/2] ARM: at91: Enable SPL_SEPARATE_BSS by default

Eugen.Hristev at microchip.com Eugen.Hristev at microchip.com
Thu Jan 23 09:12:13 CET 2020



On 10.01.2020 08:32, Stefan Roese wrote:

> On 09.01.20 17:30, Gregory CLEMENT wrote:
>> According to the linker script for both armv7 and arm926ejs based SoC,
>> BSS section was all the time separated for SPL but this symbol was
>> only enabled on some boards. However, it is necessary to have it
>> enabled for OF_SEPARATE configuration where DTB is appended to u-boot
>> with DTB.
>>
>> Signed-off-by: Gregory CLEMENT <gregory.clement at bootlin.com>
>> ---
>>   arch/arm/Kconfig | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
>> index f9dab073ea..e558024652 100644
>> --- a/arch/arm/Kconfig
>> +++ b/arch/arm/Kconfig
>> @@ -492,6 +492,7 @@ choice
>>   config ARCH_AT91
>>       bool "Atmel AT91"
>>       select SPL_BOARD_INIT if SPL && !TARGET_SMARTWEB
>> +     select SPL_SEPARATE_BSS if SPL
>>
>>   config TARGET_EDB93XX
>>       bool "Support edb93xx"
>>
> 
> Reviewed-by: Stefan Roese <sr at denx.de>
> 
> Thanks,
> Stefan
> 

Hi,

With these changes, for all the A5 boards , SEPARATE_BSS was already 
enabled, but for the rest of the platforms, it was not.
As I see from the linker script, the BSS area is configured into DRAM area.
Is there any chance that we have accesses to this section before the 
DRAM is initialized on these platforms ? Could cause the boards to hang.

Eugen


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