linux-kernel - [PATCH 4.17 167/324] nds32: Fix the dts pointer is not passed correctly issue.

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Message-Id: <20180823075004.448427986@linuxfoundation.org>
Date:   Thu, 23 Aug 2018 09:53:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Greentime Hu <greentime@...estech.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.17 167/324] nds32: Fix the dts pointer is not passed correctly issue.

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Greentime Hu <greentime@...estech.com>

[ Upstream commit 6897e6ecb3167598cb45e1a1424dd4d5e3778837 ]

We found that the original implementation will only use the built-in dtb
pointer instead of the pointer pass from bootloader. This bug is fixed
by this patch.

Signed-off-by: Greentime Hu <greentime@...estech.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/nds32/kernel/setup.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/arch/nds32/kernel/setup.c
+++ b/arch/nds32/kernel/setup.c
@@ -278,7 +278,8 @@ static void __init setup_memory(void)
 
 void __init setup_arch(char **cmdline_p)
 {
-	early_init_devtree( __dtb_start);
+	early_init_devtree(__atags_pointer ? \
+		phys_to_virt(__atags_pointer) : __dtb_start);
 
 	setup_cpuinfo();