diff options
| author | Vaibhav Hiremath <hvaibhav@ti.com> | 2013-05-17 15:43:41 +0530 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2013-06-18 03:04:07 -0700 |
| commit | 7bcad170154f1302aeeced4f236588091a261fbf (patch) | |
| tree | 19f6074a8fffab88ee6c2fbbcc86ba2102f0430b /arch | |
| parent | c3ed359c66d49ed59139c61a6284452e94efb215 (diff) | |
| download | linux-7bcad170154f1302aeeced4f236588091a261fbf.tar.bz2 | |
ARM: OMAP3+: am33xx id: Add new am33xx specific function to check dev_feature
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@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/control.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/id.c | 13 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/io.c | 2 | ||||
| -rw-r--r-- | 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 35d17a6ec06b..f7d7c2ef1b40 100644 --- a/arch/arm/mach-omap2/control.h +++ b/arch/arm/mach-omap2/control.h @@ -366,6 +366,10 @@ #define AM33XX_PWMSS1_TBCLKEN_SHIFT 1 #define AM33XX_PWMSS2_TBCLKEN_SHIFT 2 +/* 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 9e5c7cb4a81a..7335eb2bf3fa 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -304,6 +304,19 @@ 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 f96215075b92..4c7367404b89 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 9cd9414a0afd..8c616e436bc7 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -449,6 +449,7 @@ 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); /* |