[U-Boot] [U-Boot, 4/4] stm32mp1: select boot device and partition

[Tom Rini]

On Tue, Mar 20, 2018 at 10:54:54AM +0100, Patrick Delaunay wrote:

> Bootrom loads SPL from SDCARD or eMMC
> according BootPin selection.
> 
> Then SPL loads U-Boot on the same mmc device
> with the following predefined GPT partitioning:
> 
> on SDCARD: gpt partitioning
>   1: SPL
>   2: SPL#2
>   3: U-Boot
>   4: bootable partition
> 
> on eMMC:
>   The 2 boot partitions are used for SPL (2 copy)
>     boot1: SPL
>     boot2: SPL#2
>   The user partition use gpt partitioning
>     1: U-Boot
>     2: bootable partition
> 
> This patch select the correct SPL partition
> (3 for SDCARD on mmc0 and 1 for eMMC on mmc1)
> according the BootRom information saved in TAMP register
> and based on configuration flasg:
> - CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
>   => for BOOT_DEVICE_MMC1 or mmc 0 in U-Boot
> - CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_MMC2 (new)
>   => for BOOT_DEVICE_MMC2 or mmc 1 in U-Boot
> 
> And the correct boot_targets is selected according the environment
> variables boot_device and boot_instance, with preboot command,
> to search the bootable partition with kernel on this device
> (generic distro support).
> 
> Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>

Applied to u-boot/master, thanks!

-- 
Tom
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