common/recipes-bsp/u-boot/files/0004-config-ast-common-Add-conditional-factory-reset-comm.patch

From 878651bbaa8a7da203fafccb164ca7b32287b8f9 Mon Sep 17 00:00:00 2001
From: "Edward A. James" <eajames@us.ibm.com>
Date: Thu, 9 Nov 2017 11:39:10 -0600
Subject: [PATCH 4/4] config/ast-common: Add conditional factory reset command

Factory reset (removing persistant rwfs) has to occur before we've
mounted the rwfs. However, the variable to determine whether or not to
do the reset is stored in the u-boot env. This is tricky to access
before rwfs is mounted except in u-boot. So, check it before every boot.

Signed-off-by: Edward A. James <eajames@us.ibm.com>
---
 include/configs/ast-common.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/configs/ast-common.h b/include/configs/ast-common.h
index 14191e4ab0..aaa5155e00 100644
--- a/include/configs/ast-common.h
+++ b/include/configs/ast-common.h
@@ -121,6 +121,8 @@
 #define CONFIG_ENV_SIZE			0x10000	/* Total Size of Environment Sector */
 #define CONFIG_ENV_SIZE_REDUND		0x10000
 
+#define CONFIG_RWFS_SIZE		0x600000
+
 #define CONFIG_BOOTCOMMAND		"run set_bootargs; run obmc_bootcmd"
 #define CONFIG_ENV_OVERWRITE
 
@@ -130,11 +132,13 @@
 	"kernelname=kernel-0 \0" \
 	"loadaddr=" __stringify(CONFIG_LOADADDR) "\0" \
 	"set_bootargs=setenv bootargs " CONFIG_BOOTARGS " ubi.block=\${ubiblock} root=\${root} \0" \
-	"obmc_bootcmd=ubi part obmc-ubi; ubi read ${loadaddr} ${kernelname}; bootm ${loadaddr} \0" \
+	"obmc_bootcmd=ubi part obmc-ubi; run do_rwreset; ubi read ${loadaddr} ${kernelname}; bootm ${loadaddr} \0" \
 	"verify=yes\0"	\
 	"spi_dma=yes\0" \
 	"mtdids=" MTDIDS_DEFAULT "\0" \
 	"mtdparts=" MTDPARTS_DEFAULT "\0" \
+	"rwfs_size=" __stringify(CONFIG_RWFS_SIZE) "\0" \
+	"do_rwreset=if test \"\${rwreset}\" = \"true\"; then ubi remove rwfs; ubi create rwfs \${rwfs_size}; fi \0" \
 	""
 
 #endif	/* __AST_COMMON_CONFIG_H */
-- 
2.14.3