Re: [PATCH 12/23] ARM: i.MX8M: esdctl: export imx8m_ddrc_sdram_size()

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

Hi,

On 11/10/25 9:34 PM, Marco Felsch wrote:
> imx8m_ddrc_sdram_size() returns the full memory size whereas
> imx8m_barebox_earlymem_size() limits the size to 4GiB.
> 
> This can be useful in cases like fixing up the FDT memory size for
> OP-TEE which uses the information to configure the TZASC accordingly.
> 
> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>

Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>

Thanks,
Ahmad

> ---
>  arch/arm/mach-imx/esdctl.c | 2 +-
>  include/mach/imx/esdctl.h  | 1 +
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-imx/esdctl.c b/arch/arm/mach-imx/esdctl.c
> index 0a1e042792bd90b40ffc8084efbdc5a25ba0dd02..964d438e3f3433332e351d9a70f91857ee33e0b4 100644
> --- a/arch/arm/mach-imx/esdctl.c
> +++ b/arch/arm/mach-imx/esdctl.c
> @@ -467,7 +467,7 @@ static void imx_ddrc_set_mstr_device_config(u32 *mstr, unsigned bits)
>  	*mstr |= FIELD_PREP(DDRC_MSTR_DEVICE_CONFIG, fls(bits / 8));
>  }
>  
> -static resource_size_t imx8m_ddrc_sdram_size(unsigned buswidth)
> +resource_size_t imx8m_ddrc_sdram_size(unsigned buswidth)
>  {
>  	void __iomem *ddrc = IOMEM(MX8M_DDRC_CTL_BASE_ADDR);
>  	const u32 addrmap[DDRC_ADDRMAP_LENGTH] = {
> diff --git a/include/mach/imx/esdctl.h b/include/mach/imx/esdctl.h
> index 97bd444b1a4ca2defdeb9f82180c0366296a32a0..47fb665a861bf2105b4d606ea1672caf27d8e285 100644
> --- a/include/mach/imx/esdctl.h
> +++ b/include/mach/imx/esdctl.h
> @@ -153,6 +153,7 @@ void __noreturn imx93_barebox_entry(void *boarddata);
>  void imx_esdctl_disable(void);
>  resource_size_t imx6_get_mmdc_sdram_size(void);
>  resource_size_t imx8m_barebox_earlymem_size(unsigned buswidth);
> +resource_size_t imx8m_ddrc_sdram_size(unsigned buswidth);
>  resource_size_t imx9_ddrc_sdram_size(void);
>  #endif
>  
> 

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