[PATCH u-boot][PATCH v4 3/3] Enable FIT image support and FDT loading for AST2400/AST2500

[Cédric Le Goater]

On 12/07/2016 07:06 PM, Rick Altherr wrote:
> FIT is the modern U-Boot native image format for kernels, device trees,
> and ramdisks.  Enabling FIT only compiles in support for the image
> format.  For these devices, the kernel+dtb and ramdisk are loaded from
> separate locations in flash and can be any mix of legacy or FIT images.
> When using FIT images, the dtb is stored as a separate entry that
> requires CONFIG_OF_LIBFDT to load it into RAM and pass it to the kernel.
> 
> U-Boot enables EFI support by default but it only builds once FIT
> support is enabled.  EFI support adds ~13k to the binary and is
> currently unused for any Aspeed platforms.  Explicitly disable EFI
> support now that FIT support is enabled.
> 
> Tested under qemu with both legacy and FIT kernel+dtb images for
> palmetto and witherspoon.
> 
> Signed-off-by: Rick Altherr <raltherr at google.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>


Reviewed-by: Cédric Le Goater <clg at kaod.org>

Thanks,

C.

> ---
> 
> Changes in v4: None
> Changes in v3:
> - Fix capitalization of U-Boot in commit messages
> 
> Changes in v2:
> - Reduce binary size by disabling EFI support
> 
>  configs/ast_g4_ncsi_defconfig | 5 +++++
>  configs/ast_g4_phy_defconfig  | 5 +++++
>  configs/ast_g5_ncsi_defconfig | 5 +++++
>  configs/ast_g5_phy_defconfig  | 5 +++++
>  4 files changed, 20 insertions(+)
> 
> diff --git a/configs/ast_g4_ncsi_defconfig b/configs/ast_g4_ncsi_defconfig
> index 4ee71c5..ab4907c 100644
> --- a/configs/ast_g4_ncsi_defconfig
> +++ b/configs/ast_g4_ncsi_defconfig
> @@ -1,7 +1,12 @@
>  CONFIG_ARM=y
>  CONFIG_TARGET_AST_G4=y
>  CONFIG_SYS_PROMPT="ast# "
> +CONFIG_CMD_BOOTEFI=n
>  CONFIG_CMD_DHCP=y
>  CONFIG_CMD_PING=y
> +CONFIG_EFI_LOADER=n
> +CONFIG_FIT=y
> +CONFIG_FIT_VERBOSE=y
> +CONFIG_OF_LIBFDT=y
>  CONFIG_SPI_FLASH=y
>  CONFIG_SYS_NS16550=y
> diff --git a/configs/ast_g4_phy_defconfig b/configs/ast_g4_phy_defconfig
> index 61fd69b..21a56c4 100644
> --- a/configs/ast_g4_phy_defconfig
> +++ b/configs/ast_g4_phy_defconfig
> @@ -2,7 +2,12 @@ CONFIG_ARM=y
>  CONFIG_TARGET_AST_G4=y
>  CONFIG_ASPEED_NET_PHY=y
>  CONFIG_SYS_PROMPT="ast# "
> +CONFIG_CMD_BOOTEFI=n
>  CONFIG_CMD_DHCP=y
>  CONFIG_CMD_PING=y
> +CONFIG_EFI_LOADER=n
> +CONFIG_FIT=y
> +CONFIG_FIT_VERBOSE=y
> +CONFIG_OF_LIBFDT=y
>  CONFIG_SPI_FLASH=y
>  CONFIG_SYS_NS16550=y
> diff --git a/configs/ast_g5_ncsi_defconfig b/configs/ast_g5_ncsi_defconfig
> index 6d11afb..7cd4fd1 100644
> --- a/configs/ast_g5_ncsi_defconfig
> +++ b/configs/ast_g5_ncsi_defconfig
> @@ -1,7 +1,12 @@
>  CONFIG_ARM=y
>  CONFIG_TARGET_AST_G5=y
>  CONFIG_SYS_PROMPT="ast# "
> +CONFIG_CMD_BOOTEFI=n
>  CONFIG_CMD_DHCP=y
>  CONFIG_CMD_PING=y
> +CONFIG_EFI_LOADER=n
> +CONFIG_FIT=y
> +CONFIG_FIT_VERBOSE=y
> +CONFIG_OF_LIBFDT=y
>  CONFIG_SPI_FLASH=y
>  CONFIG_SYS_NS16550=y
> diff --git a/configs/ast_g5_phy_defconfig b/configs/ast_g5_phy_defconfig
> index 20f62e0..c686dd2 100644
> --- a/configs/ast_g5_phy_defconfig
> +++ b/configs/ast_g5_phy_defconfig
> @@ -2,7 +2,12 @@ CONFIG_ARM=y
>  CONFIG_TARGET_AST_G5=y
>  CONFIG_ASPEED_NET_PHY=y
>  CONFIG_SYS_PROMPT="ast# "
> +CONFIG_CMD_BOOTEFI=n
>  CONFIG_CMD_DHCP=y
>  CONFIG_CMD_PING=y
> +CONFIG_EFI_LOADER=n
> +CONFIG_FIT=y
> +CONFIG_FIT_VERBOSE=y
> +CONFIG_OF_LIBFDT=y
>  CONFIG_SPI_FLASH=y
>  CONFIG_SYS_NS16550=y
>