From: Lukasz Majewski <lukma@denx.de>
Date: Fri, 11 May 2018 14:51:18 +0000 (+0200)
Subject: display5: config: Add GPT verification and restoration code on SWUpdate entry
X-Git-Tag: v2018.07-rc3~15^2~39
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0f05512d1135b034d09b058e2826d9c59cc26a7d;p=oweals%2Fu-boot.git

display5: config: Add GPT verification and restoration code on SWUpdate entry

If GPT gets broken, then after N boot attempts we will run the SWUpdate
restoration image.
On its enter we will check GPT and restore it if needed.

To test it:
display5 > mmc write 0x12000000 4 8

It will overwrite the primary GPT table.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
---

diff --git a/include/configs/display5.h b/include/configs/display5.h
index 1456cf497d..f3c8757385 100644
--- a/include/configs/display5.h
+++ b/include/configs/display5.h
@@ -144,6 +144,16 @@
 	"echo '#######################';" \
 	"echo '# RECOVERY SWUupdate  #';" \
 	"echo '#######################';" \
+	"echo '#######################';" \
+	"echo '# GPT verify          #';" \
+	"if gpt verify mmc ${mmcdev} ${partitions}; then " \
+		"echo '# OK !                #';" \
+	"else " \
+		"echo '# FAILED !            #';" \
+		"echo '# GPT RESTORATION     #';" \
+		"gpt write mmc ${mmcdev} ${partitions};" \
+	"fi;" \
+	"echo '#######################';" \
 	"setenv loadaddr_swu_initramfs 0x14000000;" \
 	"setenv bootargs console=${console} " \
 		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \