[U-Boot] [PATCH 1/2] microblaze: spl: Do not call mem_malloc_init and use early alloc

[Michal Simek <michal.simek@xilinx.com>]

On 14.12.2015 04:47, Simon Glass wrote:
> Hi Michal,
> 
> On 3 February 2015 at 08:39, Michal Simek <michal.simek@xilinx.com> wrote:
>>
>> This patch has some parts connected together:
>> - Use _gd in bss section which is automatically cleared
>>   Location at SPL_MALLOC_END wasn't cleared at all
>> - Use MALLOC_F_LEN(early alloc) instead of FULL MALLOC
>>   (mem_malloc_init is not called at all)
>> - Simplify malloc and stack init.
>>   At the end of SPL addr is malloc area and below is stack
>>
>> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
>> ---
>>
>>  arch/microblaze/cpu/start.S          |  6 +++++-
>>  include/configs/microblaze-generic.h | 32 +++++++++++---------------------
>>  2 files changed, 16 insertions(+), 22 deletions(-)
>>
>> diff --git a/arch/microblaze/cpu/start.S b/arch/microblaze/cpu/start.S
>> index cf9ee7e3e6ad..953d3a15eef2 100644
>> --- a/arch/microblaze/cpu/start.S
>> +++ b/arch/microblaze/cpu/start.S
>> @@ -162,7 +162,11 @@ clear_bss:
>>  #endif
>>         brai    board_init_f
>>  #else
>> -       addi    r31, r0, CONFIG_SYS_SPL_MALLOC_END
>> +       addi    r31, r0, _gd
>> +#if defined(CONFIG_SYS_MALLOC_F_LEN)
>> +       addi    r6, r0, CONFIG_SPL_STACK_ADDR
>> +       swi     r6, r31, GD_MALLOC_BASE
>> +#endif
>>         brai    board_init_r
>>  #endif
>>  1:     bri     1b
>> diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h
>> index 770acbea691b..166ab4f05654 100644
>> --- a/include/configs/microblaze-generic.h
>> +++ b/include/configs/microblaze-generic.h
>> @@ -113,7 +113,12 @@
>>  #endif
>>
>>  #define CONFIG_SYS_MALLOC_LEN  0xC0000
>> -#define CONFIG_SYS_MALLOC_F_LEN        1024
>> +#ifndef CONFIG_SPL_BUILD
>> +# define CONFIG_SYS_MALLOC_F_LEN       1024
>> +#else
>> +# define CONFIG_SYS_MALLOC_SIMPLE
>> +# define CONFIG_SYS_MALLOC_F_LEN       0x150
>> +#endif
> 
> These should be set via Kconfig - e.g. default values for your arch,
> or perhaps individual values in the defconfig files. At present this
> breaks when driver model is enabled by default.
> 
> Can you please take a look?
> 

Already did. Here is follow up patch.

http://lists.denx.de/pipermail/u-boot/2015-December/237468.html

Thanks,
Michal