[U-Boot] [PATCH] spl: mmc: Add option to set eMMC HW boot partition

[Lukasz Majewski]

Dear Tom,

> From: Mans Rullgard <mans at mansr.com>
> 
> This change allows setting pre-defined eMMC boot partition for SPL
> eMMC booting. It is necessary in the case when one wants to boot
> (through falcon boot) from eMMC after loading SPL from other memory
> (like SPI-NOR).
> 
> Signed-off-by: Mans Rullgard <mans at mansr.com>
> [lukma: Edit the commit message]
> Signed-off-by: Lukasz Majewski <lukma at denx.de>
> Acked-by: Andreas Dannenberg <dannenberg at ti.com>
> 

Tom, are there any issues preventing this patch from being applied to
-master?

> ---
> 
>  common/spl/Kconfig   | 6 ++++++
>  common/spl/spl_mmc.c | 4 ++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/common/spl/Kconfig b/common/spl/Kconfig
> index f467eca2be..5b7667ea16 100644
> --- a/common/spl/Kconfig
> +++ b/common/spl/Kconfig
> @@ -314,6 +314,12 @@ config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
>  	  Address on the MMC to load U-Boot from, when the MMC is
> being used in raw mode. Units: MMC sectors (1 sector = 512 bytes).
>  
> +config SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
> +	int "Number of the eMMC boot partition to use"
> +	default 1
> +	help
> +	  eMMC boot partition number to use when the eMMC in raw
> mode. +
>  config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
>  	bool "MMC Raw mode: by partition"
>  	help
> diff --git a/common/spl/spl_mmc.c b/common/spl/spl_mmc.c
> index 2caceb5186..a4d2e63b82 100644
> --- a/common/spl/spl_mmc.c
> +++ b/common/spl/spl_mmc.c
> @@ -334,6 +334,9 @@ int spl_mmc_load(struct spl_image_info *spl_image,
>  	err = -EINVAL;
>  	switch (boot_mode) {
>  	case MMCSD_MODE_EMMCBOOT:
> +#ifdef CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
> +		part = CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION;
> +#else
>  		/*
>  		 * We need to check what the partition is configured
> to.
>  		 * 1 and 2 match up to boot0 / boot1 and 7 is user
> data @@ -343,6 +346,7 @@ int spl_mmc_load(struct spl_image_info
> *spl_image, 
>  		if (part == 7)
>  			part = 0;
> +#endif
>  
>  		if (CONFIG_IS_ENABLED(MMC_TINY))
>  			err = mmc_switch_part(mmc, part);




Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
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Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
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