[U-Boot] [PATCH V2 05/12] ARM: DRA7xx: Do not enable srcomp for DRA7xx Soc's

Lokesh Vutla
2013-05-30T13:19:32Z

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 afb7000..40dbf45 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 1435674..7007177 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -575,6 +575,14 @@ 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

/*
--
1.7.9.5