[PATCH v2 1/1] arm: sunxi: increase SYS_MALLOC_F_LEN

[Heinrich Schuchardt]

On 08.06.20 13:50, Jagan Teki wrote:
> On Mon, Jun 8, 2020 at 6:59 AM Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>>
>> The current default of 0x400 for SYS_MALLOC_F_LEN is too small if any
>> additional drivers marked as DM_FLAG_PRE_RELOC are loaded before
>> relocation.
>>
>> CONFIG_RSA=y which is needed for UEFI secure boot or for FIT image
>> verification loads the driver mod_exp_sw which has DM_FLAG_PRE_RELOC.
>>
>> CONFIG_LOG=Y is another setting requiring additional early malloc
>> area, cf. log_init().
>>
>> When running pine64-lts_defconfig with CONFIG_RSA=y and debug UART enabled
>> we see as output in main U-Boot
>>
>>     alloc_simple() alloc space exhausted
>>
>> With this patch the default values of SYS_MALLOC_F_LEN is raised to 0x2000.
>> The default for SPL_SYS_MALLOC_F_LEN on ARCH_SUNXI is explicitely set to
>> 0x400 to avoid an increased usage of SRAM on elder SoCs.
>>
>> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
>> ---
>
> Reviewed-by: Jagan Teki <jagan at amarulasolutions.com>
>

Thanks for reviewing.

All sunxi boards have at least 32 KiB SRAM and only this 32 KiB used by
U-Boot for SPL on all sunxi boards. A BananaPi with A20 CPU boots fine
with SPL_SYS_MALLOC_F_LEN=0x2000. So it seems that also version 1 of the
patch was on the safe side.

Best regards

Heinrich