From e9d6cd042d63d59a43dfe953d488cfbf1ece516c Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Thu, 30 May 2013 03:19:32 +0000
Subject: [PATCH] ARM: DRA7xx: Do not enable srcomp for DRA7xx Soc's
Slew rate compensation cells are not present for DRA7xx
Soc's. So return from function srcomp_enable() if soc is not
OMAP54xx.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
---
arch/arm/cpu/armv7/omap5/hwinit.c | 3 +++
arch/arm/include/asm/omap_common.h | 8 ++++++++
2 files changed, 11 insertions(+)
diff --git a/arch/arm/cpu/armv7/omap5/hwinit.c b/arch/arm/cpu/armv7/omap5/hwinit.c
index afb70002273..40dbf45705e 100644
--- a/arch/arm/cpu/armv7/omap5/hwinit.c
+++ b/arch/arm/cpu/armv7/omap5/hwinit.c
@@ -201,6 +201,9 @@ void srcomp_enable(void)
u32 sysclk_ind = get_sys_clk_index();
u32 omap_rev = omap_revision();
+ if (!is_omap54xx())
+ return;
+
mul_factor = srcomp_parameters[sysclk_ind].multiply_factor;
div_factor = srcomp_parameters[sysclk_ind].divide_factor;
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index f51fccce591..f33f28baf09 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -597,6 +597,14 @@ static inline u32 omap_revision(void)
extern u32 *const omap_si_rev;
return *omap_si_rev;
}
+
+#define OMAP54xx 0x54000000
+
+static inline u8 is_omap54xx(void)
+{
+ extern u32 *const omap_si_rev;
+ return ((*omap_si_rev & 0xFF000000) == OMAP54xx);
+}
#endif
/*
--
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