[EXTERNAL] Re: [PATCH 1/2] common: spl: spl_spi: add support for dynamic detection of sf bus

Vaishnav Achath vaishnav.a at ti.com
Wed May 11 08:03:32 CEST 2022


Hi Heiko,

On 09/05/22 12:49, Heiko Schocher wrote:
> Hello Achat,
> 
> On 09.05.22 08:43, Vaishnav Achath wrote:
>> Currently the SPI flash to load from is defined through the compile
>> time config CONFIG_SF_DEFAULT_BUS and CONFIG_SF_DEFAULT_CS, this
>> prevents the loading of binaries from different SPI flash using the
>> same build.E.g. supporting QSPI flash boot and OSPI flash boot
>> on J721E platform is not possible due to this limitation.
>>
>> This commit adds lookup functions spl_spi_boot_bus()
>> and spl_spi_boot_cs for identifying the flash device based on the
>> selected boot devic, when not overridden the lookup functions are
>>   weakly defined in common/spl/spl_spi.c.
>>
>> Signed-off-by: Vaishnav Achath <vaishnav.a at ti.com>
>> ---
>>   common/spl/Kconfig   |  4 ++++
>>   common/spl/spl_spi.c | 19 +++++++++++++++++--
>>   include/spl.h        | 18 ++++++++++++++++++
>>   3 files changed, 39 insertions(+), 2 deletions(-)
>>
>> diff --git a/common/spl/Kconfig b/common/spl/Kconfig
>> index ac61b25a06..b13492b6a2 100644
>> --- a/common/spl/Kconfig
>> +++ b/common/spl/Kconfig
>> @@ -1103,6 +1103,10 @@ config SPL_SPI_FLASH_SUPPORT
>>   	  lines). This enables the drivers in drivers/mtd/spi as part of an
>>   	  SPL build. This normally requires SPL_SPI.
>>   
>> +config SPL_DYNAMIC_SF_BUS_DETECT
>> +	bool "Detect which SPI flash to load from"
>> +	depends on SPL_SPI_FLASH_SUPPORT
> 
> Do you really need here a new Kconfig option? I think you can drop it...
> 
adding the Kconfig option is not necessary, will drop it in V2.
Thank you for the feedback.
> bye,
> Heiko
> 

-- 
Thanks and Regards,
Vaishnav


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