some upstream changes, new and updated cores

src/ramdisk/readme.txt

@@ -0,0 +1,35 @@
+can't just hexedit a ramdisk.img because of the internal CRC checksum
+
+make sure we have mkimage
+
+	apt update && apt install u-boot-tools 
+
+(the following steps are slow if performed in the shared workspace folder, 
+move ramdisk.img somewhere above that directory to do the work, eg. ~)
+
+strip the header from ramdisk.img
+
+	dd bs=1 skip=64 if=ramdisk.img of=ramdisk-no-header.img
+
+unpack the image
+
+	mkdir ramdisk && cd ramdisk
+	cpio -i --no-absolute-filenames < ../ramdisk-no-header.img
+
+patch charger to use /misc/charging.png for _every_ charging image :sweat_smile:
+
+	sed -i 's,/res/images/%s.png,/misc/charging.png,' charger
+
+pack it up and recreate the image
+
+	shopt -s dotglob
+	find . | cpio -H newc -o > ../ramdisk.cpio
+	mkimage -A arm -O linux -T ramdisk -n "Initial RAM Disk" -d ../ramdisk.cpio ../ramdisk.img.new
+
+based on
+
+	https://boundarydevices.com/hacking-ram-disks/
+
+---
+
+if I decide to use this will need to copy charging.png and patched-ramdisk.img (as ramdisk.img) to /.system/rg35xx/dat