[PATCH] imx9: Improve boot device auto-selection

[Peng Fan]

> Subject: [PATCH] imx9: Improve boot device auto-selection
> 
> From: Benjamin Szőke <egyszeregy at freemail.hu>
> 
> Improve "mmcautodetect=yes" boot device auto-selection to able to
> use it if CONFIG_ENV_IS_NOWHERE is enabled for i.MX9 SoC and
> i.MX93 EVK board.

Would you please give more background on this, I not got
the point on why doing this?

Thanks,
Peng.

> 
> Signed-off-by: Benjamin Szőke <egyszeregy at freemail.hu>
> ---
>  arch/arm/mach-imx/imx9/soc.c          | 6 +++++-
>  board/freescale/imx93_evk/imx93_evk.c | 2 +-
>  include/configs/imx93_evk.h           | 6 ++++++
>  3 files changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-
> imx/imx9/soc.c index 7c28fa39e1..79ddbc7241 100644
> --- a/arch/arm/mach-imx/imx9/soc.c
> +++ b/arch/arm/mach-imx/imx9/soc.c
> @@ -42,12 +42,16 @@ DECLARE_GLOBAL_DATA_PTR;
> 
>  struct rom_api *g_rom_api = (struct rom_api *)0x1980;
> 
> -#ifdef CONFIG_ENV_IS_IN_MMC
> +#if CONFIG_IS_ENABLED(ENV_IS_IN_MMC) ||
> +CONFIG_IS_ENABLED(ENV_IS_NOWHERE)
>  __weak int board_mmc_get_env_dev(int devno)  {
>  	return devno;
>  }
> 
> +#ifndef CONFIG_SYS_MMC_ENV_DEV
> +#define CONFIG_SYS_MMC_ENV_DEV 0
> +#endif
> +
>  int mmc_get_env_dev(void)
>  {
>  	int ret;
> diff --git a/board/freescale/imx93_evk/imx93_evk.c
> b/board/freescale/imx93_evk/imx93_evk.c
> index 341831a7d3..c9171df330 100644
> --- a/board/freescale/imx93_evk/imx93_evk.c
> +++ b/board/freescale/imx93_evk/imx93_evk.c
> @@ -58,7 +58,7 @@ int board_init(void)
> 
>  int board_late_init(void)
>  {
> -#ifdef CONFIG_ENV_IS_IN_MMC
> +#if CONFIG_IS_ENABLED(ENV_IS_IN_MMC) ||
> +CONFIG_IS_ENABLED(ENV_IS_NOWHERE)
>  	board_late_mmc_env_init();
>  #endif
> 
> diff --git a/include/configs/imx93_evk.h b/include/configs/imx93_evk.h
> index 53fb8c9b1b..2a9595a261 100644
> --- a/include/configs/imx93_evk.h
> +++ b/include/configs/imx93_evk.h
> @@ -27,6 +27,12 @@
>  #define BOOTENV
>  #endif
> 
> +#if CONFIG_IS_ENABLED(ENV_IS_NOWHERE)
> +#ifndef CONFIG_SYS_MMC_ENV_DEV
> +#define CONFIG_SYS_MMC_ENV_DEV 0
> +#endif
> +#endif
> +
>  /* Initial environment variables */
>  #define CFG_EXTRA_ENV_SETTINGS		\
>  	BOOTENV \
> --
> 2.47.0.windows.1