[openwrt/openwrt] imx: create sdcard image recipe with raw U-Boot

[LEDE Commits]

pepe2k pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/f987887e14702ef0fe63b1721f498946669e3b79

commit f987887e14702ef0fe63b1721f498946669e3b79
Author: Lech Perczak <lech.perczak at gmail.com>
AuthorDate: Thu Apr 28 23:31:58 2022 +0200

    imx: create sdcard image recipe with raw U-Boot
    
    Most i.MX boards booting off eMMC or SD cards use raw U-Boot located at
    69 kB offset from beginning of the device - create a recipe for such
    image.
    
    Signed-off-by: Lech Perczak <lech.perczak at gmail.com>
---
 target/linux/imx/image/common.mk | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/target/linux/imx/image/common.mk b/target/linux/imx/image/common.mk
index 8a9b260584..3b528a02b1 100644
--- a/target/linux/imx/image/common.mk
+++ b/target/linux/imx/image/common.mk
@@ -49,3 +49,13 @@ define Build/imx-sdcard
 
 	$(Build/imx-combined-image-clean)
 endef
+
+define Build/imx-sdcard-raw-uboot
+	$(Build/imx-combined-image-prepare)
+
+	$(Build/imx-combined-image)
+	dd if=$(STAGING_DIR_IMAGE)/$(UBOOT)-SPL of=$@ bs=1024 seek=1 conv=notrunc
+	dd if=$(STAGING_DIR_IMAGE)/$(UBOOT)-u-boot-dtb.img of=$@ bs=1024 seek=69 conv=notrunc
+
+	$(Build/imx-combined-image-clean)
+endef