Merge tag 'uniphier-v2020.04-2' of https://gitlab.denx.de/u-boot/custodians/u-boot-uniphier

UniPhier SoC updates for v2020.04 (2nd)

Denali NAND driver changes:
 - Set up more registers in denali-spl for SOCFPGA
 - Make clocks optional
 - Do not assert reset signals in the remove hook
 - associate SPARE_AREA_SKIP_BYTES with DT compatible
 - switch to UCLASS_MTD

UniPhier platform changes:
 - fix a bug in dram_init()
 - specify loadaddr for "source" command

include/configs/uniphier.h

@@ -169,17 +169,17 @@
 		"ubi part UBI && " \
 		"ubifsmount ubi0:boot && " \
 		"ubifsload ${loadaddr} ${script} && " \
-		"source\0" \
+		"source $loadaddr\0" \
 	"norscript=echo Running ${script} from tftp ... && " \
 		"tftpboot ${script} &&" \
-		"source\0" \
+		"source $loadaddr\0" \
 	"usbscript=usb start && " \
 		"setenv devtype usb && " \
 		"setenv devnum 0 && " \
 		"run loadscript_fat\0" \
 	"loadscript_fat=echo Running ${script} from ${devtype}${devnum} ... && " \
 		"load ${devtype} ${devnum}:1 ${loadaddr} ${script} && " \
-		"source\0" \
+		"source $loadaddr\0" \
 	"sramupdate=setexpr tmp_addr $nor_base + 0x50000 &&"	\
 		"tftpboot $tmp_addr $second_image && " \
 		"setexpr tmp_addr $nor_base + 0x70000 && " \