common/recipes-bsp/u-boot/files/0001-config-ast-common-Add-conditional-factory-reset-comm.patch

From 90cdc1aa6079d0f2d5894807cbfee4e8125e2b5b 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] 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 8150265..41d196a 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		0x400000
+
 #if 0
 #define CONFIG_BOOTCOMMAND	\
 	"fdt addr 20080000; " \
@@ -137,11 +139,13 @@
 	"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 */
-- 
1.8.3.1