Layout of DEV_FEATURE register (offset = 0x604) is different
between TI81xx and AM33xx device, so create separate function
which will check for features available on specific AM33xx SoC
and set the flags accordingly.
Signed-off-by: Vaibhav Hiremath <hvaibhav@xxxxxx>
Reviewed-by: Kevin Hilman <khilman@xxxxxxxxxx>
---
Changes from V1:
- Removed SHIFT value, as it never gets used in code
- Used BIT() macro for MASK definition
arch/arm/mach-omap2/control.h | 4 ++++
arch/arm/mach-omap2/id.c | 13 +++++++++++++
arch/arm/mach-omap2/io.c | 2 +-
arch/arm/mach-omap2/soc.h | 1 +
4 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index e6c3281..174eb41 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -358,6 +358,10 @@
#define AM33XX_CONTROL_STATUS_SYSBOOT1_WIDTH 0x2
#define AM33XX_CONTROL_STATUS_SYSBOOT1_MASK (0x3 << 22)
+/* DEV Feature register to identify AM33XX features */
+#define AM33XX_DEV_FEATURE 0x604
+#define AM33XX_SGX_MASK BIT(29)
+
/* CONTROL OMAP STATUS register to identify OMAP3 features */
#define OMAP3_CONTROL_OMAP_STATUS 0x044c
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 1272c41..44be835 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -302,6 +302,19 @@ void __init ti81xx_check_features(void)
omap3_cpuinfo();
}
+void __init am33xx_check_features(void)
+{
+ u32 status;
+
+ omap_features = OMAP3_HAS_NEON;
+
+ status = omap_ctrl_readl(AM33XX_DEV_FEATURE);
+ if (status & AM33XX_SGX_MASK)
+ omap_features |= OMAP3_HAS_SGX;
+
+ omap3_cpuinfo();
+}
+
void __init omap3xxx_check_revision(void)
{
const char *cpu_rev;
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 09abf99..06a8946 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -576,7 +576,7 @@ void __init am33xx_init_early(void)
omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE));
omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), NULL);
omap3xxx_check_revision();
- ti81xx_check_features();
+ am33xx_check_features();
am33xx_voltagedomains_init();
am33xx_powerdomains_init();
am33xx_clockdomains_init();
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index 197cc16..fd4507b 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -424,6 +424,7 @@ void omap4xxx_check_revision(void);
void omap5xxx_check_revision(void);
void omap3xxx_check_features(void);
void ti81xx_check_features(void);
+void am33xx_check_features(void);
void omap4xxx_check_features(void);
/*
--
1.7.0.4
--
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