From ca0d6a45da0a36898e61e71385737d30b92f10f3 Mon Sep 17 00:00:00 2001
From: Igor Pecovnik <igor.pecovnik@gmail.com>
Date: Thu, 13 Apr 2017 17:01:43 +0200
Subject: [PATCH] Add configuration for setting uboot environment from
 userspace with: fw_setenv fw_printenv SUNXI, tested on A20 and H3

---
 config/sources/sunxi_common.inc | 1 +
 makeboarddeb.sh                 | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/config/sources/sunxi_common.inc b/config/sources/sunxi_common.inc
index 5b15fd5cfd..16a578db5d 100644
--- a/config/sources/sunxi_common.inc
+++ b/config/sources/sunxi_common.inc
@@ -8,6 +8,7 @@ BOOTPATCHDIR="u-boot-sunxi"
 UBOOT_TARGET_MAP=';;u-boot-sunxi-with-spl.bin'
 
 UBOOT_ALT_GCC='> 6.1'
+UBOOT_FW_ENV='0x88000,0x20000' # /etc/fw_env.config offset and env size
 
 HAS_UUID_SUPPORT=yes
 BOOTDELAY=0
diff --git a/makeboarddeb.sh b/makeboarddeb.sh
index 111851616d..9b6ae04c56 100644
--- a/makeboarddeb.sh
+++ b/makeboarddeb.sh
@@ -270,6 +270,13 @@ create_board_package()
 		install -m 755 $SRC/lib/scripts/h3consumption $destination/usr/bin
 	fi
 
+	# add configuration for setting uboot environment from userspace with: fw_setenv fw_printenv
+	if [[ -n $UBOOT_FW_ENV ]]; then
+		UBOOT_FW_ENV=($(tr ',' ' ' <<< "$UBOOT_FW_ENV"))
+		echo "# Device to access      offset           env size" > $destination/etc/fw_env.config
+		echo "/dev/mmcblk	${UBOOT_FW_ENV[0]}	${UBOOT_FW_ENV[1]}" >> $destination/etc/fw_env.config
+	fi
+
 	# log2ram - systemd compatible ramlog alternative
 	cp $SRC/lib/scripts/log2ram/LICENSE.log2ram $destination/usr/share/log2ram/LICENSE
 	cp $SRC/lib/scripts/log2ram/log2ram.service $destination/lib/systemd/system/log2ram.service