random-mirrors/smaeul-u-boot
1
0
Fork 0
mirror of https://github.com/smaeul/u-boot.git synced 2025-10-13 12:26:01 +01:00
Code Issues Packages Projects Releases Wiki Activity

sunxi: Enable SPL FIT loading for 32-bit SoCs

Browse Source 
Now that 32-bit SoCs can load U-Boot proper (and possibly other
firmware) from a FIT, use this method by default. SPL_FIT_IMAGE_TINY is
required to stay within the 24 or 32 KiB SPL size limit on early SoCs;
for consistency, enable it everywhere.

Series-to: Andre Przywara <andre.przywara@arm.com>
Series-to: Jagan Teki <jagan@amarulasolutions.com>
Series-cc: Icenowy Zheng <icenowy@aosc.io>
Series-cc: Jesse Taube <Mr.Bossman075@gmail.com>
Series-cc: u-boot@lists.denx.de

Series-version: 3

Commit-changes: 2
 - New patch for v2, split from the .dtsi changes

Cover-changes: 3
 - Rebased and collected tags

Cover-letter:
sunxi: SPL FIT support for 32-bit sunxi SoCs
This series makes the necessary changes so 32-bit sunxi SoCs can load
additional device trees or firmware from SPL along with U-Boot proper.
Crust (SCP firmware) has support for A33 and H3, and H3 also needs to
load an eGon blob to support CPU 0 hotplug (a silicon bug workaround).

FIT unlocks more features (signatures, multiple DTBs, etc.), so enable
it by default. A10 (sun4i) only has 24 KiB of SRAM A1, so it needs
SPL_FIT_IMAGE_TINY. For consistency, enable that option everywhere.

After this series is applied, we can increase SPL_MAX_SIZE for H6 and
newer SoCs, both 32-bit (e.g. A50, T113) and 64-bit. I did not do that
yet because there is some discussion to be had about the correct value:
it must be adjusted to guarantee return-to-FEL functionality, and the
exact adjustment depends on the sunxi-fel tool implementation.
END

Signed-off-by: Samuel Holland <samuel@sholland.org>
This commit is contained in:
Samuel Holland 2023-01-22 12:19:10 -06:00
parent 50ec5566a9
commit 11b7f4963a
2 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/Kconfig
View File

@ -1167,6 +1167,7 @@ config ARCH_SUNXI
imply SPL_GPIO
imply SPL_LIBCOMMON_SUPPORT
imply SPL_LIBGENERIC_SUPPORT
imply SPL_LOAD_FIT
imply SPL_MMC if MMC
imply SPL_POWER
imply SPL_SERIAL

3
common/spl/Kconfig
View File

@ -567,8 +567,7 @@ config SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
config SPL_FIT_IMAGE_TINY
bool "Remove functionality from SPL FIT loading to reduce size"
depends on SPL_FIT
default y if MACH_SUN50I || MACH_SUN50I_H5 || SUN50I_GEN_H6
default y if ARCH_IMX8M || ARCH_IMX9
default y if ARCH_IMX8M || ARCH_IMX9 || ARCH_SUNXI
help
Enable this to reduce the size of the FIT image loading code
in SPL, if space for the SPL binary is very tight.