From: Jaehoon Chung <jh80.chung@samsung.com>
Date: Fri, 9 Jun 2023 00:03:44 +0000 (+0900)
Subject: tizen: bootscript: vf2: Support a ramdisk booting
X-Git-Tag: accepted/tizen/unified/20231106.171643~49
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b160c4746071585caa68f53d5a7d709a25e07ebc;p=platform%2Fkernel%2Fu-boot.git

tizen: bootscript: vf2: Support a ramdisk booting

Support a ramdisk booting.
It will not mount a ramdisk partition directly.
Instead, it will be loading ramdisk image to ram area.

Change-Id: Iec0f3863d42b54405a55171aead0da97a0ad8d7d
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
---

diff --git a/tizen/bootscript/tizen-boot-vf2.scr b/tizen/bootscript/tizen-boot-vf2.scr
index 7370238..4b519f6 100644
--- a/tizen/bootscript/tizen-boot-vf2.scr
+++ b/tizen/bootscript/tizen-boot-vf2.scr
@@ -11,16 +11,19 @@ fi
 if test -e $bootdev $mmcbootdev:$mmcinformpart $slotfile; then;
 	ext4load $bootdev $mmcbootdev:$mmcinformpart $slot_addr $slotfile;
 	if itest.b *${slot_addr} == 0x62; then;
-		setenv ramdiskpart 14
+		setenv ramdiskpart 0xf
+		setenv part 15
 		setenv partition_ab b
 		echo "boot from slot_b";
 	else
 		setenv ramdiskpart 9
+		setenv part 9
 		setenv partition_ab a
 		echo "boot from slot_a";
 	fi
 else
 	setenv ramdiskpart 9
+	setenv part 9
 	setenv partition_ab a
 	echo "boot from slot_a";
 fi
@@ -29,23 +32,28 @@ if test -e $bootdev $mmcbootdev:$mmcinformpart $rebootparamfile; then;
 	ext4load $bootdev $mmcbootdev:$mmcinformpart $rebootparam_addr $rebootparamfile;
 	if itest.l *${rebootparam_addr} == ${upgrade_val}; then;
 		if test "${partition_ab}" = "b"; then
-			setenv ramdiskpart 15
+			setenv ramdiskpart 0x10
+			setenv part 16
 		else
 			setenv ramdiskpart 9
+			setenv part 9
 		fi
 		setenv bootmode fota
 	elif itest.l *${rebootparam_addr} == ${recovery_val}; then;
 		if test "${partition_ab}" = "b"; then
-			setenv ramdiskpart 15
+			setenv ramdiskpart 0x10
+			setenv part 16
 		else
 			setenv ramdiskpart 9
 		fi
 		setenv bootmode recovery
 	elif itest.l *${rebootparam_addr} == ${download_val}; then;
 		if test "${partition_ab}" = "b"; then
-			setenv ramdiskpart 15
+			setenv ramdiskpart 0x10
+			setenv part 16
 		else
 			setenv ramdiskpart 9
+			setenv part 9
 		fi
 		setenv bootmode flash
 	elif itest.l *${rebootparam_addr} == ${nodef_val}; then;
@@ -56,9 +64,11 @@ fi
 # This is for jumping to flash mode on u-boot.
 if test "${bootmode}" = "download"; then;
 	if test "${partition_ab}" = "b"; then
-		setenv ramdiskpart 15
+		setenv ramdiskpart 0x10
+		setenv part 16
 	else
 		setenv ramdiskpart 9
+		setenv part 9
 	fi
 	setenv bootmode flash
 fi
@@ -71,12 +81,7 @@ fi
 
 # boot from ramdisk if there is sbin
 if test -e $bootdev $mmcrootdev:$ramdiskpart sbin/init; then;
-	if test "${bootdev}" = "mmc"; then;
-		setenv rootdev mmcblk${mmcrootdev}p${ramdiskpart}
-	fi
-	if test "${bootdev}" = "usb"; then;
-		setenv rootdev sda${ramdiskpart}
-	fi
+	setenv rootdev ram0
 else
 	if test "${bootdev}" = "mmc"; then;
 		setenv rootdev mmcblk${mmcrootdev}p${mmcrootpart}
@@ -99,11 +104,25 @@ setenv boot_prefixes \"/\"
 # To use cmdline for using serial console. /* Normal mode */
 setenv bootargs \"${tizen_bootarg} root=/dev/${rootdev} rw bootmode=${bootmode} partition_ab=${partition_ab} rootwait ${console} ${opts} ${ip_opt} stmmaceth=chain_mode:1\"
 
+# Find the ramdisk offset and block count
+part start $bootdev $mmcrootdev $ramdiskpart ramdisk_start
+part size $bootdev $mmcrootdev $ramdiskpart ramdisk_size
+
+# Set to ramdisksize with real partition size. (Need to multiply block-size 0x200)
+setexpr ramdisksize $ramdisk_size * 200
+setexpr tizen_kernel_addr_r $ramdisk_addr_r + $ramdisksize
+
 echo "Searching for kernel in"; for prefix in $boot_prefixes; do
-if load $bootdev $mmcbootdev:$mmcbootpart $kernel_addr_r $prefix$kernel; then;
-	echo ${bootmode} "boot from" ${rootdev};
+if load $bootdev $mmcbootdev:$mmcbootpart $tizen_kernel_addr_r $prefix$kernel; then;
+	echo ${bootmode} "boot";
+
+	if test -e $bootdev $mmcrootdev:$ramdiskpart sbin/init; then;
+		echo "Loading Ramdisk from partition"${part};
+		echo "Environment value of ramdiskpart is" ${ramdiskpart};
+		$bootdev read $ramdisk_addr_r $ramdisk_start $ramdisk_size;
+	fi
 
 	load $bootdev $mmcrootdev:$mmcbootpart $fdt_addr_r $fdtfile
-	booti $kernel_addr_r - $fdt_addr_r;
+	booti $tizen_kernel_addr_r $ramdisk_addr_r:$ramdisksize $fdt_addr_r;
 fi
 done