[PATCH 1/2] configs/j721e_{beaglebone64, evm}_defconfig: reduce fastboot buffer

[Kumar, Udit]

On 6/15/2026 10:49 PM, Kumar, Udit wrote:
> 
> 
> On 4/26/2026 7:27 PM, Romain Naour wrote:
>> Using Snagboot's Snagflash tool to flash the SD card using
>> fastboot-uboot mode on SK-TDA4VM crash u-boot.
>>
>> Flashing an image.wic.xz file generated by Yocto doesn't work as
>> expected:
>>
>> 2026-04-25 16:46:21,134 [INFO] flashed 267296768/267296768 bytes
>> 2026-04-25 16:46:21,162 [INFO] Flashing sparse range 10/13
>> 2026-04-25 16:46:21,163 [INFO] Flashing to MMC device...
>>
>> On the the chunk is bigger that previous one and doesn't fit in the RAM
[..]
>>  CONFIG_FASTBOOT_BUF_ADDR=0x82000000
>> -CONFIG_FASTBOOT_BUF_SIZE=0x2F000000
>> +CONFIG_FASTBOOT_BUF_SIZE=0x1c800000
> 
> What you think to move CONFIG_FASTBOOT_BUF_SIZE to upper memory, similar
> to  configs/j722s_evm_a53_defconfig
> 

Sorry for typo its CONFIG_FASTBOOT_BUF_ADDR

> 
>>  CONFIG_FASTBOOT_FLASH=y
>>  CONFIG_FASTBOOT_FLASH_MMC_DEV=0
>>  CONFIG_FASTBOOT_CMD_OEM_FORMAT=y
>> diff --git a/configs/j721e_evm_a72_defconfig b/configs/j721e_evm_a72_defconfig
>> index ed94fff0885..dac1c5ec82f 100644
>> --- a/configs/j721e_evm_a72_defconfig
>> +++ b/configs/j721e_evm_a72_defconfig
>> @@ -104,7 +104,7 @@ CONFIG_DMA_CHANNELS=y
>>  CONFIG_TI_K3_NAVSS_UDMA=y
>>  CONFIG_USB_FUNCTION_FASTBOOT=y
>>  CONFIG_FASTBOOT_BUF_ADDR=0x82000000
>> -CONFIG_FASTBOOT_BUF_SIZE=0x2F000000
>> +CONFIG_FASTBOOT_BUF_SIZE=0x1c800000
>>  CONFIG_FASTBOOT_FLASH=y
>>  CONFIG_FASTBOOT_FLASH_MMC_DEV=0
>>  CONFIG_FASTBOOT_CMD_OEM_FORMAT=y
>