From f99c61a94ad11d401690a64ef83e152a098c850f Mon Sep 17 00:00:00 2001
From: John Crispin <john@openwrt.org>
Date: Sat, 12 Dec 2015 07:37:45 +0000
Subject: [PATCH] procd: add 'platform_nand_pre_upgrade'

Add 'platform_nand_pre_upgrade' callback to allow platform specific
preparation right before flashinng, when already in ramdisk.

Example uses might be setting correct values for CI_{KERNPART,UBIPART}.

Signed-off-by: Nikolay Martynov <mar.kolya@gmail.com>

SVN-Revision: 47879
---
 package/system/procd/files/nand.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/system/procd/files/nand.sh b/package/system/procd/files/nand.sh
index 0c179cbb03..8b0564dca2 100644
--- a/package/system/procd/files/nand.sh
+++ b/package/system/procd/files/nand.sh
@@ -275,6 +275,10 @@ nand_upgrade_tar() {
 nand_do_upgrade_stage2() {
 	local file_type=$(identify $1)
 
+	if type 'platform_nand_pre_upgrade' >/dev/null 2>/dev/null; then
+		platform_nand_pre_upgrade "$1"
+	fi
+
 	[ ! "$(find_mtd_index "$CI_UBIPART")" ] && CI_UBIPART="rootfs"
 
 	case "$file_type" in