[U-Boot] Using spi_alloc_slave() from SPL

[Marek Vasut <marex@denx.de>]

On Thursday, August 06, 2015 at 04:14:34 PM, Fabio Estevam wrote:
> Hi Stefano and Marek,
> 
> Thanks for the suggestions.
> 
> On Thu, Aug 6, 2015 at 10:38 AM, Stefano Babic <sbabic@denx.de> wrote:
> > There is the possibility to set a malloc area inside SPL:
> > 
> > CONFIG_SYS_SPL_MALLOC_START
> > CONFIG_SYS_SPL_MALLOC_SIZE
> > you do not need a lot of space, and you can try to put it inside the
> > IRAM.
> > 
> > This should guarantee that spi_alloc_slave() works.
> 
> So I tried moving them to the internal RAM:
> 
> --- a/include/configs/imx6_spl.h
> +++ b/include/configs/imx6_spl.h
> @@ -70,8 +70,8 @@
>  #else
>  #define CONFIG_SPL_BSS_START_ADDR      0x18200000
>  #define CONFIG_SPL_BSS_MAX_SIZE                0x100000        /* 1 MB */
> -#define CONFIG_SYS_SPL_MALLOC_START    0x18300000
> -#define CONFIG_SYS_SPL_MALLOC_SIZE     0x3200000       /* 50 MB */
> +#define CONFIG_SYS_SPL_MALLOC_START    0x900000
> +#define CONFIG_SYS_SPL_MALLOC_SIZE     0x8000
>  #define CONFIG_SYS_TEXT_BASE           0x17800000
>  #endif
>  #endif
> 
> but still getting spi_alloc_slave() to fail.

You want to avoid this "CONFIG_SYS_SPL_MALLOC_*" stuff, as it increases the
SPL size by 3kiB compared to MALLOC_F . Also, MALLOC_F needs just the base
address of the malloc area to work (see my email).

Do you know the return value ?

Best regards,
Marek Vasut