ARM: DRA7: id: Add cpu detection support for DRA7xx based SoCs'
The DRA7xx is a high-performance, infotainment application device,
based on enhanced OMAP architecture integrated on a 28-nm technology.
Since DRA7 is a platform supported only using DT, the cpu detection
is based on the compatibles passed from DT blobs as suggested here
http://lists.infradead.org/pipermail/linux-arm-kernel/2013-July/187712.html
Suggested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index 8c616e4..4588df1 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -8,6 +8,7 @@
* Written by Tony Lindgren <tony.lindgren@nokia.com>
*
* Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
+ * Added DRA7xxx specific defines - Sricharan R<r.sricharan@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -35,6 +36,7 @@
#ifndef __ASSEMBLY__
#include <linux/bitops.h>
+#include <linux/of.h>
/*
* Test if multicore OMAP support is needed
@@ -105,6 +107,15 @@
# endif
#endif
+#ifdef CONFIG_SOC_DRA7XX
+# ifdef OMAP_NAME
+# undef MULTI_OMAP2
+# define MULTI_OMAP2
+# else
+# define OMAP_NAME DRA7XX
+# endif
+#endif
+
/*
* Omap device type i.e. EMU/HS/TST/GP/BAD
*/
@@ -233,6 +244,7 @@
#define cpu_is_omap447x() 0
#define soc_is_omap54xx() 0
#define soc_is_omap543x() 0
+#define soc_is_dra7xx() 0
#if defined(MULTI_OMAP2)
# if defined(CONFIG_ARCH_OMAP2)
@@ -379,6 +391,11 @@
# define soc_is_omap543x() is_omap543x()
#endif
+#if defined(CONFIG_SOC_DRA7XX)
+#undef soc_is_dra7xx
+#define soc_is_dra7xx() (of_machine_is_compatible("ti,dra7"))
+#endif
+
/* Various silicon revisions for omap2 */
#define OMAP242X_CLASS 0x24200024
#define OMAP2420_REV_ES1_0 OMAP242X_CLASS