[PATCH v1 2/9] stm32mp: dram_init: Get RAM size from DT if no RAM driver found

[Patrick DELAUNAY]

Hi,

On 10/27/23 16:42, Patrice Chotard wrote:
> From: Patrice Chotard <patrice.chotard at st.com>
>
> In case there is no RAM driver retrieve RAM size from DT as fallback.
>
> Signed-off-by: Patrice Chotard <patrice.chotard at st.com>
> Signed-off-by: Patrice Chotard <patrice.chotard at foss.st.com>
> ---
>
>   arch/arm/mach-stm32mp/dram_init.c | 7 +++++--
>   1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/mach-stm32mp/dram_init.c b/arch/arm/mach-stm32mp/dram_init.c
> index 7f37b0d2aa2..a1e77a42e4f 100644
> --- a/arch/arm/mach-stm32mp/dram_init.c
> +++ b/arch/arm/mach-stm32mp/dram_init.c
> @@ -24,8 +24,11 @@ int dram_init(void)
>   	int ret;
>   
>   	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
> -	if (ret) {
> -		log_debug("RAM init failed: %d\n", ret);
> +	/* in case there is no RAM driver, retrieve DDR size from DT */
> +	if (ret == -ENODEV) {
> +		return fdtdec_setup_mem_size_base();
> +	} else if (ret) {
> +		log_err("RAM init failed: %d\n", ret);
>   		return ret;
>   	}
>   	ret = ram_get_info(dev, &ram);


Reviewed-by: Patrick Delaunay <patrick.delaunay at foss.st.com>

Thanks
Patrick