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-rw-r--r--boot/uboot/Config.in22
1 files changed, 19 insertions, 3 deletions
diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
index 1aa2cb7b43..5601e01b48 100644
--- a/boot/uboot/Config.in
+++ b/boot/uboot/Config.in
@@ -343,13 +343,29 @@ config BR2_TARGET_UBOOT_ZYNQ_IMAGE
to be set.
config BR2_TARGET_UBOOT_ALTERA_SOCFPGA_IMAGE_CRC
- bool "CRC SPL image for Altera SoC FPGA"
+ bool "CRC image for Altera SoC FPGA (mkpimage)"
depends on BR2_arm
- depends on BR2_TARGET_UBOOT_SPL
+ depends on BR2_TARGET_UBOOT_SPL || BR2_TARGET_UBOOT_FORMAT_DTB_BIN
help
- Generate SPL image fixed by the mkpimage tool to enable
+ Pass the U-Boot image through the mkpimage tool to enable
booting on the Altera SoC FPGA based platforms.
+ On some platforms, it's the SPL that needs to be passed
+ through mkpimage. On some other platforms there is no SPL
+ because the internal SRAM is big enough to store the full
+ U-Boot. In this case, it's directly the full U-Boot image
+ that is passed through mkpimage.
+
+ If BR2_TARGET_UBOOT_SPL is enabled then
+ BR2_TARGET_UBOOT_SPL_NAME is converted by mkpimage using
+ header version 0.
+
+ Otherwise the full u-boot-dtb.bin is converted using
+ mkpimage header version 1.
+
+ In either case the resulting file will be given a .crc
+ extension.
+
menuconfig BR2_TARGET_UBOOT_ENVIMAGE
bool "Environment image"
help