linux-kernel - [PATCH 1/2] arm: devtree: Save atags if are in DT atags field

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Date:	Fri, 15 May 2015 21:50:06 +0200
From:	Pali Rohár <pali.rohar@...il.com>
To:	Rob Herring <robherring2@...il.com>,
	Russell King <linux@....linux.org.uk>,
	Will Deacon <will.deacon@....com>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	Sebastian Reichel <sre@...ian.org>,
	Pavel Machek <pavel@....cz>, Tony Lindgren <tony@...mide.com>,
	Andreas Färber <afaerber@...e.de>
Cc:	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Pali Rohár <pali.rohar@...il.com>
Subject: [PATCH 1/2] arm: devtree: Save atags if are in DT atags field

This patch creates /proc/atags from DT /atags field.

Signed-off-by: Pali Rohár <pali.rohar@...il.com>
---
 arch/arm/kernel/devtree.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index 7e13e27..dd98322 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -29,6 +29,7 @@
 #include <asm/mach-types.h>
 #include <asm/system_info.h>
 
+#include "atags.h"
 
 #ifdef CONFIG_SMP
 extern struct of_cpu_method __cpu_method_of_table[];
@@ -256,5 +257,10 @@ const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys)
 			system_rev = 0;
 	}
 
+	/* Save atags */
+	prop = of_get_flat_dt_prop(dt_root, "atags", NULL);
+	if (prop)
+		save_atags((void *)prop);
+
 	return mdesc;
 }
-- 
1.7.9.5

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