layerscape: convert to squashfs rootfs for QSPI NOR boot

There had been an issue in Layerscape QSPI driver for very long
time, which made squashfs,jffs2 rootfs not work on QSPI NOR.
And the ubifs had been used as a workaround.
Now the issue has been fixed. So convert to use squashfs,jffs2
rootfs on QSPI NOR for Layerscape boards (LS1012ARDB/LS1046ARDB/
LS1088ARDB), and update u-boot bootargs for booting.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

package/boot/uboot-layerscape/files/ls1012ardb-uEnv.txt

@@ -3,6 +3,6 @@ loadaddr=0x81000000
 fdt_high=0xffffffffffffffff
 initrd_high=0xffffffffffffffff
 qspi_boot=sf probe 0:0;sf read $fdtaddr f00000 100000;sf read $loadaddr 1000000 1000000;bootm $loadaddr - $fdtaddr
-bootargs=ubi.mtd=8 root=ubi0:rootfs rw rootfstype=ubifs noinitrd earlycon=uart8250,mmio,0x21c0500 console=ttyS0,115200 mtdparts=1550000.spi:1m(bl2),4m(fip),1m(u-boot-env),4m(reserved-1),3m(pfe),2m(reserved-2),1m(dtb),16m(kernel),32m(ubifs)
+bootargs=root=/dev/mtdblock8 rootfstype=squashfs,jffs2 noinitrd earlycon=uart8250,mmio,0x21c0500 console=ttyS0,115200 mtdparts=1550000.spi:1m(bl2),4m(fip),1m(u-boot-env),4m(reserved-1),3m(pfe),2m(reserved-2),1m(dtb),16m(kernel),32m(rootfs)
 bootcmd=echo starting openwrt ...;pfe stop;run qspi_boot
 bootdelay=3

package/boot/uboot-layerscape/files/ls1046ardb-uEnv.txt

@@ -4,6 +4,6 @@ fdt_high=0xffffffffffffffff
 initrd_high=0xffffffffffffffff
 hwconfig=fsl_ddr:bank_intlv=auto
 qspi_boot=sf probe 0:0;sf read $fdtaddr f00000 100000;sf read $loadaddr 1000000 1000000;bootm $loadaddr - $fdtaddr
-bootargs=ubi.mtd=9 root=ubi0:rootfs rw rootfstype=ubifs noinitrd earlycon=uart8250,mmio,0x21c0500 console=ttyS0,115200 mtdparts=1550000.spi-0:1m(bl2),4m(fip),1m(u-boot-env),3m(reserved-1),256k(fman),5888k(reserved-2),1m(dtb),16m(kernel),32m(ubifs)
+bootargs=root=/dev/mtdblock9 rootfstype=squashfs,jffs2 noinitrd earlycon=uart8250,mmio,0x21c0500 console=ttyS0,115200 mtdparts=1550000.spi-0:1m(bl2),4m(fip),1m(u-boot-env),3m(reserved-1),256k(fman),5888k(reserved-2),1m(dtb),16m(kernel),32m(rootfs)
 bootcmd=echo starting openwrt ...;run qspi_boot
 bootdelay=3

package/boot/uboot-layerscape/files/ls1088ardb-uEnv.txt

@@ -5,6 +5,6 @@ initrd_high=0xffffffffffffffff
 hwconfig=fsl_ddr:bank_intlv=auto
 mc_init=sf probe 0:0;sf read 80000000 a00000 300000;sf read 80300000 e00000 100000;fsl_mc start mc 80000000 80300000;sf read 80400000 d00000 100000;fsl_mc apply dpl 80400000
 qspi_boot=sf probe 0:0;sf read $fdtaddr f00000 100000;sf read $loadaddr 1000000 1000000;bootm $loadaddr - $fdtaddr
-bootargs=ubi.mtd=10 root=ubi0:rootfs rw rootfstype=ubifs noinitrd earlycon=uart8250,mmio,0x21c0500 console=ttyS0,115200 mtdparts=20c0000.spi-0:1m(bl2),4m(fip),1m(u-boot-env),4m(reserved-1),3m(mc),1m(dpl),1m(dpc),1m(dtb),16m(kernel),32m(ubifs)
+bootargs=root=/dev/mtdblock10 rootfstype=squashfs,jffs2 noinitrd earlycon=uart8250,mmio,0x21c0500 console=ttyS0,115200 mtdparts=20c0000.spi-0:1m(bl2),4m(fip),1m(u-boot-env),4m(reserved-1),3m(mc),1m(dpl),1m(dpc),1m(dtb),16m(kernel),32m(rootfs)
 bootcmd=echo starting openwrt ...;run mc_init;run qspi_boot
 bootdelay=3

target/linux/layerscape/image/armv8_64b.mk

@@ -8,8 +8,7 @@
 define Device/Default
   PROFILES := Default
   IMAGES := firmware.bin
-  FILESYSTEMS := ubifs
-  MKUBIFS_OPTS := -m 1 -e 262016 -c 128
+  FILESYSTEMS := squashfs
   KERNEL := kernel-bin | gzip | uImage gzip
   KERNEL_LOADADDR := 0x80080000
   KERNEL_ENTRY_POINT := 0x80080000
@@ -24,7 +23,6 @@ define Device/ls1012afrdm
     kmod-ppfe
   DEVICE_DTS := freescale/fsl-ls1012a-frdm
   BLOCKSIZE := 256KiB
-  FILESYSTEMS := squashfs
   IMAGES += sysupgrade.bin
   IMAGE/firmware.bin := \
     ls-clean | \
@@ -51,9 +49,6 @@ define Device/ls1012ardb
     tfa-ls1012ardb \
     kmod-ppfe
   DEVICE_DTS := freescale/fsl-ls1012a-rdb
-  UBINIZE_OPTS := -E 5
-  BLOCKSIZE := 256KiB
-  PAGESIZE := 1
   IMAGE/firmware.bin := \
     ls-clean | \
     ls-append $(1)-bl2.pbl | pad-to 1M | \
@@ -62,7 +57,7 @@ define Device/ls1012ardb
     ls-append pfe.itb | pad-to 15M | \
     ls-append-dtb $$(DEVICE_DTS) | pad-to 16M | \
     append-kernel | pad-to 32M | \
-    append-ubi | check-size 67108865
+    append-rootfs | pad-rootfs | check-size 67108865
 endef
 TARGET_DEVICES += ls1012ardb
 
@@ -101,7 +96,6 @@ define Device/ls1043ardb
     tfa-ls1043ardb \
     fmc fmc-eth-config
   DEVICE_DTS := freescale/fsl-ls1043a-rdb-sdk
-  FILESYSTEMS := squashfs
   IMAGE/firmware.bin := \
     ls-clean | \
     ls-append $(1)-bl2.pbl | pad-to 1M | \
@@ -147,9 +141,6 @@ define Device/ls1046ardb
     tfa-ls1046ardb \
     fmc fmc-eth-config
   DEVICE_DTS := freescale/fsl-ls1046a-rdb-sdk
-  UBINIZE_OPTS := -E 5
-  BLOCKSIZE := 256KiB
-  PAGESIZE := 1
   IMAGE/firmware.bin := \
     ls-clean | \
     ls-append $(1)-bl2.pbl | pad-to 1M | \
@@ -158,7 +149,7 @@ define Device/ls1046ardb
     ls-append $(1)-fman.bin | pad-to 15M | \
     ls-append-dtb $$(DEVICE_DTS) | pad-to 16M | \
     append-kernel | pad-to 32M | \
-    append-ubi | check-size 67108865
+    append-rootfs | pad-rootfs | check-size 67108865
 endef
 TARGET_DEVICES += ls1046ardb
 
@@ -196,9 +187,6 @@ define Device/ls1088ardb
     tfa-ls1088ardb \
     restool
   DEVICE_DTS := freescale/fsl-ls1088a-rdb
-  UBINIZE_OPTS := -E 5
-  BLOCKSIZE := 256KiB
-  PAGESIZE := 1
   IMAGE/firmware.bin := \
     ls-clean | \
     ls-append $(1)-bl2.pbl | pad-to 1M | \
@@ -209,7 +197,7 @@ define Device/ls1088ardb
     ls-append $(1)-dpc.dtb | pad-to 15M | \
     ls-append-dtb $$(DEVICE_DTS) | pad-to 16M | \
     append-kernel | pad-to 32M | \
-    append-ubi | check-size 67108865
+    append-rootfs | pad-rootfs | check-size 67108865
 endef
 TARGET_DEVICES += ls1088ardb
 
@@ -249,7 +237,6 @@ define Device/ls2088ardb
     tfa-ls2088ardb \
     restool
   DEVICE_DTS := freescale/fsl-ls2088a-rdb
-  FILESYSTEMS := squashfs
   IMAGE/firmware.bin := \
     ls-clean | \
     ls-append $(1)-bl2.pbl | pad-to 1M | \
@@ -272,6 +259,7 @@ define Device/traverse-ls1043
   KERNEL_INSTALL := 1
   FDT_LOADADDR = 0x90000000
   FILESYSTEMS := ubifs
+  MKUBIFS_OPTS := -m 1 -e 262016 -c 128
   DEVICE_PACKAGES += \
     layerscape-fman \
     uboot-envtools \