Currently everytime soc_is calls are made, firstly device tree nodes
are parsed and then string comparisons are made to determine the
soc version. Optimizing it to be done one time and store the result.
Use the stored value in all the subsequent checks for soc_is calls.
Signed-off-by: Keerthy <j-keerthy@xxxxxx>
---
arch/arm/mach-omap2/id.c | 17 +++++++++++++++++
arch/arm/mach-omap2/soc.h | 15 ++++++++++++---
2 files changed, 29 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index e3f713f..28acdb1 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -40,6 +40,7 @@
#define OMAP_SOC_MAX_NAME_LENGTH 16
static unsigned int omap_revision;
+static unsigned long soc_ids;
static char soc_name[OMAP_SOC_MAX_NAME_LENGTH];
static char soc_rev[OMAP_SOC_MAX_NAME_LENGTH];
u32 omap_features;
@@ -50,6 +51,21 @@ unsigned int omap_rev(void)
}
EXPORT_SYMBOL(omap_rev);
+void init_dra_soc_id(void)
+{
+ if (of_machine_is_compatible("ti,dra7"))
+ soc_ids |= DRA7XX;
+ if (of_machine_is_compatible("ti,dra74"))
+ soc_ids |= DRA74X;
+ if (of_machine_is_compatible("ti,dra72"))
+ soc_ids |= DRA72X;
+}
+
+int check_soc_version(unsigned long id)
+{
+ return soc_ids & id;
+}
+
int omap_type(void)
{
static u32 val = OMAP2_DEVICETYPE_MASK;
@@ -643,6 +659,7 @@ void __init dra7xxx_check_revision(void)
u16 hawkeye;
u8 rev;
+ init_dra_soc_id();
idcode = read_tap_reg(OMAP_TAP_IDCODE);
hawkeye = (idcode >> 12) & 0xffff;
rev = (idcode >> 28) & 0xff;
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index f97654d..4b0a532 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -125,6 +125,15 @@
#define OMAP2_DEVICE_TYPE_GP 3
#define OMAP2_DEVICE_TYPE_BAD 4
+/*
+ * SoC types
+ */
+
+#define DRA7XX BIT(0)
+#define DRA74X BIT(1)
+#define DRA72X BIT(2)
+
+int check_soc_version(unsigned long id);
int omap_type(void);
/*
@@ -397,9 +406,9 @@ IS_OMAP_TYPE(3430, 0x3430)
#undef soc_is_dra7xx
#undef soc_is_dra74x
#undef soc_is_dra72x
-#define soc_is_dra7xx() (of_machine_is_compatible("ti,dra7"))
-#define soc_is_dra74x() (of_machine_is_compatible("ti,dra74"))
-#define soc_is_dra72x() (of_machine_is_compatible("ti,dra72"))
+#define soc_is_dra7xx() check_soc_version(DRA7XX)
+#define soc_is_dra74x() check_soc_version(DRA74X)
+#define soc_is_dra72x() check_soc_version(DRA72X)
#endif
/* Various silicon revisions for omap2 */
--
1.9.1
--
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